Exemple #1
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    def genesis(self):
        md = self.qaction.menu()
        cm = partial(self.create_menu_action, md)
        cm('individual', _('Edit metadata individually'), icon=self.qaction.icon(),
                triggered=partial(self.edit_metadata, False, bulk=False))
        md.addSeparator()
        cm('bulk', _('Edit metadata in bulk'),
                triggered=partial(self.edit_metadata, False, bulk=True))
        md.addSeparator()
        cm('download', _('Download metadata and covers'),
                triggered=partial(self.download_metadata, ids=None),
                shortcut='Ctrl+D')
        self.metadata_menu = md

        mb = QMenu()
        cm2 = partial(self.create_menu_action, mb)
        cm2('merge delete', _('Merge into first selected book - delete others'),
                triggered=self.merge_books)
        mb.addSeparator()
        cm2('merge keep', _('Merge into first selected book - keep others'),
                triggered=partial(self.merge_books, safe_merge=True),
                shortcut='Alt+M')
        mb.addSeparator()
        cm2('merge formats', _('Merge only formats into first selected book - delete others'),
                triggered=partial(self.merge_books, merge_only_formats=True),
                shortcut='Alt+Shift+M')
        self.merge_menu = mb
        md.addSeparator()
        self.action_merge = cm('merge', _('Merge book records'), icon='merge_books.png',
            shortcut=_('M'), triggered=self.merge_books)
        self.action_merge.setMenu(mb)

        self.qaction.triggered.connect(self.edit_metadata)
Exemple #2
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 def show_context_menu(self, pos):
     m = QMenu(self)
     a = m.addAction
     for x in ('undo', 'redo'):
         a(actions['editor-%s' % x])
     m.addSeparator()
     for x in ('cut', 'copy', 'paste'):
         a(actions['editor-' + x])
     m.addSeparator()
     m.addAction(_('&Select all'), self.editor.select_all)
     m.addAction(actions['mark-selected-text'])
     m.exec_(self.editor.mapToGlobal(pos))
Exemple #3
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 def show_context_menu(self, pos):
     m = QMenu(self)
     a = m.addAction
     for x in ('undo', 'redo'):
         a(actions['editor-%s' % x])
     m.addSeparator()
     for x in ('cut', 'copy', 'paste'):
         a(actions['editor-' + x])
     m.addSeparator()
     m.addAction(_('&Select all'), self.editor.select_all)
     m.addAction(actions['mark-selected-text'])
     if self.syntax == 'html':
         m.addAction(actions['multisplit'])
     m.exec_(self.editor.mapToGlobal(pos))
Exemple #4
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 def contextMenuEvent(self, event):
     index = self.indexAt(event.pos())
     
     if not index.isValid():
         return
     
     result = self.model().get_result(index)
     
     menu = QMenu()
     da = menu.addAction(_('Download...'), partial(self.download_requested.emit, result))
     if not result.downloads:
         da.setEnabled(False)
     menu.addSeparator()
     menu.addAction(_('Goto in store...'), partial(self.open_requested.emit, result))
     menu.exec_(event.globalPos())
Exemple #5
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    def contextMenuEvent(self, event):
        index = self.indexAt(event.pos())

        if not index.isValid():
            return

        result = self.model().get_result(index)

        menu = QMenu()
        da = menu.addAction(_('Download...'),
                            partial(self.download_requested.emit, result))
        if not result.downloads:
            da.setEnabled(False)
        menu.addSeparator()
        menu.addAction(_('Goto in store...'),
                       partial(self.open_requested.emit, result))
        menu.exec_(event.globalPos())
Exemple #6
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    def genesis(self):
        md = self.qaction.menu()
        cm = partial(self.create_menu_action, md)
        cm(
            "individual",
            _("Edit metadata individually"),
            icon=self.qaction.icon(),
            triggered=partial(self.edit_metadata, False, bulk=False),
        )
        md.addSeparator()
        cm("bulk", _("Edit metadata in bulk"), triggered=partial(self.edit_metadata, False, bulk=True))
        md.addSeparator()
        cm(
            "download",
            _("Download metadata and covers"),
            triggered=partial(self.download_metadata, ids=None),
            shortcut="Ctrl+D",
        )
        self.metadata_menu = md

        mb = QMenu()
        cm2 = partial(self.create_menu_action, mb)
        cm2("merge delete", _("Merge into first selected book - delete others"), triggered=self.merge_books)
        mb.addSeparator()
        cm2(
            "merge keep",
            _("Merge into first selected book - keep others"),
            triggered=partial(self.merge_books, safe_merge=True),
            shortcut="Alt+M",
        )
        mb.addSeparator()
        cm2(
            "merge formats",
            _("Merge only formats into first selected book - delete others"),
            triggered=partial(self.merge_books, merge_only_formats=True),
            shortcut="Alt+Shift+M",
        )
        self.merge_menu = mb
        md.addSeparator()
        self.action_merge = cm(
            "merge", _("Merge book records"), icon="merge_books.png", shortcut=_("M"), triggered=self.merge_books
        )
        self.action_merge.setMenu(mb)

        self.qaction.triggered.connect(self.edit_metadata)
Exemple #7
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    def eventFilter(self, obj, event):
        base = super(Central, self)
        if obj is not self.editor_tabs.tabBar() or event.type() != QEvent.MouseButtonPress or event.button() not in (Qt.RightButton, Qt.MidButton):
            return base.eventFilter(obj, event)
        index = self.editor_tabs.tabBar().tabAt(event.pos())
        if index < 0:
            return base.eventFilter(obj, event)
        if event.button() == Qt.MidButton:
            self._close_requested(index)
        ed = self.editor_tabs.widget(index)
        if ed is not None:
            menu = QMenu(self)
            menu.addAction(actions['close-current-tab'].icon(), _('Close tab'), partial(self.close_requested.emit, ed))
            menu.addSeparator()
            menu.addAction(actions['close-all-but-current-tab'].icon(), _('Close other tabs'), partial(self.close_all_but, ed))
            menu.exec_(self.editor_tabs.tabBar().mapToGlobal(event.pos()))

        return True
Exemple #8
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    def eventFilter(self, obj, event):
        base = super(Central, self)
        if obj is not self.editor_tabs.tabBar() or event.type() != QEvent.MouseButtonPress or event.button() not in (Qt.RightButton, Qt.MidButton):
            return base.eventFilter(obj, event)
        index = self.editor_tabs.tabBar().tabAt(event.pos())
        if index < 0:
            return base.eventFilter(obj, event)
        if event.button() == Qt.MidButton:
            self._close_requested(index)
        ed = self.editor_tabs.widget(index)
        if ed is not None:
            menu = QMenu(self)
            menu.addAction(actions['close-current-tab'].icon(), _('Close tab'), partial(self.close_requested.emit, ed))
            menu.addSeparator()
            menu.addAction(actions['close-all-but-current-tab'].icon(), _('Close other tabs'), partial(self.close_all_but, ed))
            menu.exec_(self.editor_tabs.tabBar().mapToGlobal(event.pos()))

        return True
Exemple #9
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    def genesis(self):
        md = self.qaction.menu()
        cm = partial(self.create_menu_action, md)
        cm('individual',
           _('Edit metadata individually'),
           icon=self.qaction.icon(),
           triggered=partial(self.edit_metadata, False, bulk=False))
        md.addSeparator()
        cm('bulk',
           _('Edit metadata in bulk'),
           triggered=partial(self.edit_metadata, False, bulk=True))
        md.addSeparator()
        cm('download',
           _('Download metadata and covers'),
           triggered=partial(self.download_metadata, ids=None),
           shortcut='Ctrl+D')
        self.metadata_menu = md

        mb = QMenu()
        cm2 = partial(self.create_menu_action, mb)
        cm2('merge delete',
            _('Merge into first selected book - delete others'),
            triggered=self.merge_books)
        mb.addSeparator()
        cm2('merge keep',
            _('Merge into first selected book - keep others'),
            triggered=partial(self.merge_books, safe_merge=True),
            shortcut='Alt+M')
        mb.addSeparator()
        cm2('merge formats',
            _('Merge only formats into first selected book - delete others'),
            triggered=partial(self.merge_books, merge_only_formats=True),
            shortcut='Alt+Shift+M')
        self.merge_menu = mb
        md.addSeparator()
        self.action_merge = cm('merge',
                               _('Merge book records'),
                               icon='merge_books.png',
                               shortcut=_('M'),
                               triggered=self.merge_books)
        self.action_merge.setMenu(mb)

        self.qaction.triggered.connect(self.edit_metadata)
 def contextMenuEvent(self, event):
     menu = QMenu(self)
     pos = event.pos()
     index = self.indexAt(pos)
     if index.isValid():
         item = self.indexAt(pos).internalPointer()
         node = self.item_to_node_dict[item]
         nodeset = [node]  # ? ? ? ?
         optflag = False  # ? ? ? ?
         cmenu_spec = self.ne1model.make_cmenuspec_for_set(nodeset, optflag)
         for x in cmenu_spec:
             if x is not None:
                 str, thunk = x[:2]
                 act = QAction(str, self)
                 act.setEnabled("disabled" not in x[2:])
                 self.connect(act, SIGNAL("triggered()"), thunk)
                 menu.addAction(act)
             else:
                 menu.addSeparator()
         menu.exec_(event.globalPos())
Exemple #11
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    def contextMenuEvent(self, ev):
        m = QMenu(self)
        w = self.model().word_for_row(self.currentIndex().row())
        if w is not None:
            a = m.addAction(_('Change %s to') % w[0])
            cm = QMenu()
            a.setMenu(cm)
            cm.addAction(_('Specify replacement manually'), partial(self.change_to.emit, w, None))
            cm.addSeparator()
            for s in dictionaries.suggestions(*w):
                cm.addAction(s, partial(self.change_to.emit, w, s))

        m.addAction(_('Ignore/Unignore all selected words'), self.ignore_all)
        a = m.addAction(_('Add/Remove all selected words'))
        am = QMenu()
        a.setMenu(am)
        for dic in sorted(dictionaries.active_user_dictionaries, key=lambda x:sort_key(x.name)):
            am.addAction(dic.name, partial(self.add_all.emit, dic.name))

        m.exec_(ev.globalPos())
 def contextMenuEvent(self, event):
     menu = QMenu(self)
     pos = event.pos()
     index = self.indexAt(pos)
     if index.isValid():
         item = self.indexAt(pos).internalPointer()
         node = self.item_to_node_dict[item]
         nodeset = [ node ] # ? ? ? ?
         optflag = False  # ? ? ? ?
         cmenu_spec = self.treemodel.make_cmenuspec_for_set(nodeset, optflag)
         for x in cmenu_spec:
             if x is not None:
                 str, thunk = x[:2]
                 act = QAction(str, self)
                 act.setEnabled("disabled" not in x[2:])
                 self.connect(act, SIGNAL("triggered()"), thunk)
                 menu.addAction(act)
             else:
                 menu.addSeparator()
         menu.exec_(event.globalPos())
Exemple #13
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    def show_context_menu(self, pos):
        m = QMenu(self)
        a = m.addAction
        c = self.editor.cursorForPosition(pos)
        r = self.editor.syntax_range_for_cursor(c)
        if r is not None and r.format.property(SPELL_PROPERTY).toBool():
            word = self.editor.text_for_range(c.block(), r)
            locale = self.editor.spellcheck_locale_for_cursor(c)
            orig_pos = c.position()
            c.setPosition(orig_pos - utf16_length(word))
            found = False
            self.editor.setTextCursor(c)
            if self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False):
                found = True
                fc = self.editor.textCursor()
                if fc.position() < c.position():
                    self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False)
            if found:
                suggestions = dictionaries.suggestions(word, locale)[:7]
                if suggestions:
                    for suggestion in suggestions:
                        ac = m.addAction(suggestion, partial(self.editor.simple_replace, suggestion))
                        f = ac.font()
                        f.setBold(True), ac.setFont(f)
                    m.addSeparator()
                m.addAction(actions['spell-next'])
                m.addAction(_('Ignore this word'), partial(self._nuke_word, None, word, locale))
                dics = dictionaries.active_user_dictionaries
                if len(dics) > 0:
                    if len(dics) == 1:
                        m.addAction(_('Add this word to the dictionary: {0}').format(dics[0].name), partial(
                            self._nuke_word, dics[0].name, word, locale))
                    else:
                        ac = m.addAction(_('Add this word to the dictionary'))
                        dmenu = QMenu(m)
                        ac.setMenu(dmenu)
                        for dic in dics:
                            dmenu.addAction(dic.name, partial(self._nuke_word, dic.name, word, locale))
                m.addSeparator()

        for x in ('undo', 'redo'):
            a(actions['editor-%s' % x])
        m.addSeparator()
        for x in ('cut', 'copy', 'paste'):
            a(actions['editor-' + x])
        m.addSeparator()
        m.addAction(_('&Select all'), self.editor.select_all)
        m.addAction(actions['mark-selected-text'])
        if self.syntax == 'html':
            m.addAction(actions['multisplit'])
        m.exec_(self.editor.mapToGlobal(pos))
Exemple #14
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    def show_context_menu(self, point):
        item = self.itemAt(point)
        if item is None or item in set(self.categories.itervalues()):
            return
        m = QMenu(self)
        sel = self.selectedItems()
        num = len(sel)
        container = current_container()
        ci = self.currentItem()
        if ci is not None:
            cn = unicode(ci.data(0, NAME_ROLE).toString())
            mt = unicode(ci.data(0, MIME_ROLE).toString())
            cat = unicode(ci.data(0, CATEGORY_ROLE).toString())
            n = elided_text(cn.rpartition('/')[-1])
            m.addAction(QIcon(I('save.png')), _('Export %s') % n, partial(self.export, cn))
            if cn not in container.names_that_must_not_be_changed and cn not in container.names_that_must_not_be_removed and mt not in OEB_FONTS:
                m.addAction(_('Replace %s with file...') % n, partial(self.replace, cn))
            m.addSeparator()

            m.addAction(QIcon(I('modified.png')), _('&Rename %s') % n, self.edit_current_item)
            if is_raster_image(mt):
                m.addAction(QIcon(I('default_cover.png')), _('Mark %s as cover image') % n, partial(self.mark_as_cover, cn))
            elif current_container().SUPPORTS_TITLEPAGES and mt in OEB_DOCS and cat == 'text':
                m.addAction(QIcon(I('default_cover.png')), _('Mark %s as cover page') % n, partial(self.mark_as_titlepage, cn))
            m.addSeparator()

        if num > 0:
            m.addSeparator()
            if num > 1:
                m.addAction(QIcon(I('modified.png')), _('&Bulk rename selected files'), self.request_bulk_rename)
            m.addAction(QIcon(I('trash.png')), _('&Delete the %d selected file(s)') % num, self.request_delete)
            m.addSeparator()

        selected_map = defaultdict(list)
        for item in sel:
            selected_map[unicode(item.data(0, CATEGORY_ROLE).toString())].append(unicode(item.data(0, NAME_ROLE).toString()))

        for items in selected_map.itervalues():
            items.sort(key=self.index_of_name)

        if selected_map['text']:
            m.addAction(QIcon(I('format-text-color.png')), _('Link &stylesheets...'), partial(self.link_stylesheets, selected_map['text']))

        if len(selected_map['text']) > 1:
            m.addAction(QIcon(I('merge.png')), _('&Merge selected text files'), partial(self.start_merge, 'text', selected_map['text']))
        if len(selected_map['styles']) > 1:
            m.addAction(QIcon(I('merge.png')), _('&Merge selected style files'), partial(self.start_merge, 'styles', selected_map['styles']))

        if len(list(m.actions())) > 0:
            m.popup(self.mapToGlobal(point))
Exemple #15
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class BooksView(QTableView):  # {{{

    files_dropped = pyqtSignal(object)
    add_column_signal = pyqtSignal()

    def viewportEvent(self, event):
        if (event.type() == event.ToolTip and not gprefs['book_list_tooltips']):
            return False
        return QTableView.viewportEvent(self, event)

    def __init__(self, parent, modelcls=BooksModel, use_edit_metadata_dialog=True):
        QTableView.__init__(self, parent)
        self.gui = parent
        self.setProperty('highlight_current_item', 150)
        self.row_sizing_done = False
        self.alternate_views = AlternateViews(self)

        if not tweaks['horizontal_scrolling_per_column']:
            self.setHorizontalScrollMode(self.ScrollPerPixel)

        self.setEditTriggers(self.EditKeyPressed)
        if tweaks['doubleclick_on_library_view'] == 'edit_cell':
            self.setEditTriggers(self.DoubleClicked|self.editTriggers())
        elif tweaks['doubleclick_on_library_view'] == 'open_viewer':
            self.setEditTriggers(self.SelectedClicked|self.editTriggers())
            self.doubleClicked.connect(parent.iactions['View'].view_triggered)
        elif tweaks['doubleclick_on_library_view'] == 'edit_metadata':
            # Must not enable single-click to edit, or the field will remain
            # open in edit mode underneath the edit metadata dialog
            if use_edit_metadata_dialog:
                self.doubleClicked.connect(
                        partial(parent.iactions['Edit Metadata'].edit_metadata,
                                checked=False))
            else:
                self.setEditTriggers(self.DoubleClicked|self.editTriggers())

        setup_dnd_interface(self)
        self.setAlternatingRowColors(True)
        self.setSelectionBehavior(self.SelectRows)
        self.setShowGrid(False)
        self.setWordWrap(False)

        self.rating_delegate = RatingDelegate(self)
        self.timestamp_delegate = DateDelegate(self)
        self.pubdate_delegate = PubDateDelegate(self)
        self.last_modified_delegate = DateDelegate(self,
                tweak_name='gui_last_modified_display_format')
        self.languages_delegate = LanguagesDelegate(self)
        self.tags_delegate = CompleteDelegate(self, ',', 'all_tag_names')
        self.authors_delegate = CompleteDelegate(self, '&', 'all_author_names', True)
        self.cc_names_delegate = CompleteDelegate(self, '&', 'all_custom', True)
        self.series_delegate = TextDelegate(self)
        self.publisher_delegate = TextDelegate(self)
        self.text_delegate = TextDelegate(self)
        self.cc_text_delegate = CcTextDelegate(self)
        self.cc_enum_delegate = CcEnumDelegate(self)
        self.cc_bool_delegate = CcBoolDelegate(self)
        self.cc_comments_delegate = CcCommentsDelegate(self)
        self.cc_template_delegate = CcTemplateDelegate(self)
        self.cc_number_delegate = CcNumberDelegate(self)
        self.display_parent = parent
        self._model = modelcls(self)
        self.setModel(self._model)
        self._model.count_changed_signal.connect(self.do_row_sizing,
                                                 type=Qt.QueuedConnection)
        self.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.setSortingEnabled(True)
        self.selectionModel().currentRowChanged.connect(self._model.current_changed)
        self.preserve_state = partial(PreserveViewState, self)

        # {{{ Column Header setup
        self.can_add_columns = True
        self.was_restored = False
        self.column_header = HeaderView(Qt.Horizontal, self)
        self.setHorizontalHeader(self.column_header)
        self.column_header.setMovable(True)
        self.column_header.setClickable(True)
        self.column_header.sectionMoved.connect(self.save_state)
        self.column_header.setContextMenuPolicy(Qt.CustomContextMenu)
        self.column_header.customContextMenuRequested.connect(self.show_column_header_context_menu)
        self.column_header.sectionResized.connect(self.column_resized, Qt.QueuedConnection)
        self.row_header = HeaderView(Qt.Vertical, self)
        self.setVerticalHeader(self.row_header)
        # }}}

        self._model.database_changed.connect(self.database_changed)
        hv = self.verticalHeader()
        hv.setClickable(True)
        hv.setCursor(Qt.PointingHandCursor)
        self.selected_ids = []
        self._model.about_to_be_sorted.connect(self.about_to_be_sorted)
        self._model.sorting_done.connect(self.sorting_done,
                type=Qt.QueuedConnection)

    # Column Header Context Menu {{{
    def column_header_context_handler(self, action=None, column=None):
        if not action or not column:
            return
        try:
            idx = self.column_map.index(column)
        except:
            return
        h = self.column_header

        if action == 'hide':
            h.setSectionHidden(idx, True)
        elif action == 'show':
            h.setSectionHidden(idx, False)
            if h.sectionSize(idx) < 3:
                sz = h.sectionSizeHint(idx)
                h.resizeSection(idx, sz)
        elif action == 'ascending':
            self.sortByColumn(idx, Qt.AscendingOrder)
        elif action == 'descending':
            self.sortByColumn(idx, Qt.DescendingOrder)
        elif action == 'defaults':
            self.apply_state(self.get_default_state())
        elif action == 'addcustcol':
            self.add_column_signal.emit()
        elif action.startswith('align_'):
            alignment = action.partition('_')[-1]
            self._model.change_alignment(column, alignment)
        elif action == 'quickview':
            from calibre.customize.ui import find_plugin
            qv = find_plugin('Show Quickview')
            if qv:
                rows = self.selectionModel().selectedRows()
                if len(rows) > 0:
                    current_row = rows[0].row()
                    current_col = self.column_map.index(column)
                    index = self.model().index(current_row, current_col)
                    qv.actual_plugin_.change_quickview_column(index)

        self.save_state()

    def show_column_header_context_menu(self, pos):
        idx = self.column_header.logicalIndexAt(pos)
        if idx > -1 and idx < len(self.column_map):
            col = self.column_map[idx]
            name = unicode(self.model().headerData(idx, Qt.Horizontal,
                    Qt.DisplayRole).toString())
            self.column_header_context_menu = QMenu(self)
            if col != 'ondevice':
                self.column_header_context_menu.addAction(_('Hide column %s') %
                        name,
                    partial(self.column_header_context_handler, action='hide',
                        column=col))
            m = self.column_header_context_menu.addMenu(
                    _('Sort on %s')  % name)
            a = m.addAction(_('Ascending'),
                    partial(self.column_header_context_handler,
                        action='ascending', column=col))
            d = m.addAction(_('Descending'),
                    partial(self.column_header_context_handler,
                        action='descending', column=col))
            if self._model.sorted_on[0] == col:
                ac = a if self._model.sorted_on[1] else d
                ac.setCheckable(True)
                ac.setChecked(True)
            if col not in ('ondevice', 'inlibrary') and \
                    (not self.model().is_custom_column(col) or
                    self.model().custom_columns[col]['datatype'] not in ('bool',
                        )):
                m = self.column_header_context_menu.addMenu(
                        _('Change text alignment for %s') % name)
                al = self._model.alignment_map.get(col, 'left')
                for x, t in (('left', _('Left')), ('right', _('Right')), ('center',
                    _('Center'))):
                        a = m.addAction(t,
                            partial(self.column_header_context_handler,
                            action='align_'+x, column=col))
                        if al == x:
                            a.setCheckable(True)
                            a.setChecked(True)

            if not isinstance(self, DeviceBooksView):
                if self._model.db.field_metadata[col]['is_category']:
                    act = self.column_header_context_menu.addAction(_('Quickview column %s') %
                            name,
                        partial(self.column_header_context_handler, action='quickview',
                            column=col))
                    rows = self.selectionModel().selectedRows()
                    if len(rows) > 1:
                        act.setEnabled(False)

            hidden_cols = [self.column_map[i] for i in
                    range(self.column_header.count()) if
                    self.column_header.isSectionHidden(i)]
            try:
                hidden_cols.remove('ondevice')
            except:
                pass
            if hidden_cols:
                self.column_header_context_menu.addSeparator()
                m = self.column_header_context_menu.addMenu(_('Show column'))
                for col in hidden_cols:
                    hidx = self.column_map.index(col)
                    name = unicode(self.model().headerData(hidx, Qt.Horizontal,
                            Qt.DisplayRole).toString())
                    m.addAction(name,
                        partial(self.column_header_context_handler,
                        action='show', column=col))

            self.column_header_context_menu.addSeparator()
            self.column_header_context_menu.addAction(
                    _('Shrink column if it is too wide to fit'),
                    partial(self.resize_column_to_fit, column=self.column_map[idx]))
            self.column_header_context_menu.addAction(
                    _('Restore default layout'),
                    partial(self.column_header_context_handler,
                        action='defaults', column=col))

            if self.can_add_columns:
                self.column_header_context_menu.addAction(
                        QIcon(I('column.png')),
                        _('Add your own columns'),
                        partial(self.column_header_context_handler,
                            action='addcustcol', column=col))

            self.column_header_context_menu.popup(self.column_header.mapToGlobal(pos))
    # }}}

    # Sorting {{{
    def about_to_be_sorted(self, idc):
        selected_rows = [r.row() for r in self.selectionModel().selectedRows()]
        self.selected_ids = [idc(r) for r in selected_rows]

    def sorting_done(self, indexc):
        pos = self.horizontalScrollBar().value()
        self.select_rows(self.selected_ids, using_ids=True, change_current=True,
            scroll=True)
        self.selected_ids = []
        self.horizontalScrollBar().setValue(pos)

    def sort_by_named_field(self, field, order, reset=True):
        if field in self.column_map:
            idx = self.column_map.index(field)
            if order:
                self.sortByColumn(idx, Qt.AscendingOrder)
            else:
                self.sortByColumn(idx, Qt.DescendingOrder)
        else:
            self._model.sort_by_named_field(field, order, reset)

    def multisort(self, fields, reset=True, only_if_different=False):
        if len(fields) == 0:
            return
        sh = self.cleanup_sort_history(self._model.sort_history,
                                       ignore_column_map=True)
        if only_if_different and len(sh) >= len(fields):
            ret=True
            for i,t in enumerate(fields):
                if t[0] != sh[i][0]:
                    ret = False
                    break
            if ret:
                return

        for n,d in reversed(fields):
            if n in self._model.db.field_metadata.keys():
                sh.insert(0, (n, d))
        sh = self.cleanup_sort_history(sh, ignore_column_map=True)
        self._model.sort_history = [tuple(x) for x in sh]
        self._model.resort(reset=reset)
        col = fields[0][0]
        dir = Qt.AscendingOrder if fields[0][1] else Qt.DescendingOrder
        if col in self.column_map:
            col = self.column_map.index(col)
            hdrs = self.horizontalHeader()
            try:
                hdrs.setSortIndicator(col, dir)
            except:
                pass
    # }}}

    # Ondevice column {{{
    def set_ondevice_column_visibility(self):
        m  = self._model
        self.column_header.setSectionHidden(m.column_map.index('ondevice'),
                not m.device_connected)

    def set_device_connected(self, is_connected):
        self._model.set_device_connected(is_connected)
        self.set_ondevice_column_visibility()
    # }}}

    # Save/Restore State {{{
    def get_state(self):
        h = self.column_header
        cm = self.column_map
        state = {}
        state['hidden_columns'] = [cm[i] for i in range(h.count())
                if h.isSectionHidden(i) and cm[i] != 'ondevice']
        state['last_modified_injected'] = True
        state['languages_injected'] = True
        state['sort_history'] = \
            self.cleanup_sort_history(self.model().sort_history)
        state['column_positions'] = {}
        state['column_sizes'] = {}
        state['column_alignment'] = self._model.alignment_map
        for i in range(h.count()):
            name = cm[i]
            state['column_positions'][name] = h.visualIndex(i)
            if name != 'ondevice':
                state['column_sizes'][name] = h.sectionSize(i)
        return state

    def write_state(self, state):
        db = getattr(self.model(), 'db', None)
        name = unicode(self.objectName())
        if name and db is not None:
            db.prefs.set(name + ' books view state', state)

    def save_state(self):
        # Only save if we have been initialized (set_database called)
        if len(self.column_map) > 0 and self.was_restored:
            state = self.get_state()
            self.write_state(state)

    def cleanup_sort_history(self, sort_history, ignore_column_map=False):
        history = []
        for col, order in sort_history:
            if not isinstance(order, bool):
                continue
            if col == 'date':
                col = 'timestamp'
            if ignore_column_map or col in self.column_map:
                if (not history or history[-1][0] != col):
                    history.append([col, order])
        return history

    def apply_sort_history(self, saved_history, max_sort_levels=3):
        if not saved_history:
            return
        for col, order in reversed(self.cleanup_sort_history(
                saved_history)[:max_sort_levels]):
            self.sortByColumn(self.column_map.index(col),
                              Qt.AscendingOrder if order else Qt.DescendingOrder)

    def apply_state(self, state, max_sort_levels=3):
        h = self.column_header
        cmap = {}
        hidden = state.get('hidden_columns', [])
        for i, c in enumerate(self.column_map):
            cmap[c] = i
            if c != 'ondevice':
                h.setSectionHidden(i, c in hidden)

        positions = state.get('column_positions', {})
        pmap = {}
        for col, pos in positions.items():
            if col in cmap:
                pmap[pos] = col
        for pos in sorted(pmap.keys()):
            col = pmap[pos]
            idx = cmap[col]
            current_pos = h.visualIndex(idx)
            if current_pos != pos:
                h.moveSection(current_pos, pos)

        sizes = state.get('column_sizes', {})
        for col, size in sizes.items():
            if col in cmap:
                sz = sizes[col]
                if sz < 3:
                    sz = h.sectionSizeHint(cmap[col])
                h.resizeSection(cmap[col], sz)

        self.apply_sort_history(state.get('sort_history', None),
                max_sort_levels=max_sort_levels)

        for col, alignment in state.get('column_alignment', {}).items():
            self._model.change_alignment(col, alignment)

        for i in range(h.count()):
            if not h.isSectionHidden(i) and h.sectionSize(i) < 3:
                sz = h.sectionSizeHint(i)
                h.resizeSection(i, sz)

    def get_default_state(self):
        old_state = {
                'hidden_columns': ['last_modified', 'languages'],
                'sort_history':[DEFAULT_SORT],
                'column_positions': {},
                'column_sizes': {},
                'column_alignment': {
                    'size':'center',
                    'timestamp':'center',
                    'pubdate':'center'},
                'last_modified_injected': True,
                'languages_injected': True,
                }
        h = self.column_header
        cm = self.column_map
        for i in range(h.count()):
            name = cm[i]
            old_state['column_positions'][name] = i
            if name != 'ondevice':
                old_state['column_sizes'][name] = \
                    min(350, max(self.sizeHintForColumn(i),
                        h.sectionSizeHint(i)))
                if name in ('timestamp', 'last_modified'):
                    old_state['column_sizes'][name] += 12
        return old_state

    def get_old_state(self):
        ans = None
        name = unicode(self.objectName())
        if name:
            name += ' books view state'
            db = getattr(self.model(), 'db', None)
            if db is not None:
                ans = db.prefs.get(name, None)
                if ans is None:
                    ans = gprefs.get(name, None)
                    try:
                        del gprefs[name]
                    except:
                        pass
                    if ans is not None:
                        db.prefs[name] = ans
                else:
                    injected = False
                    if not ans.get('last_modified_injected', False):
                        injected = True
                        ans['last_modified_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'last_modified' not in hc:
                            hc.append('last_modified')
                    if not ans.get('languages_injected', False):
                        injected = True
                        ans['languages_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'languages' not in hc:
                            hc.append('languages')
                    if injected:
                        db.prefs[name] = ans
        return ans

    def restore_state(self):
        old_state = self.get_old_state()
        if old_state is None:
            old_state = self.get_default_state()
        max_levels = 3

        if tweaks['sort_columns_at_startup'] is not None:
            sh = []
            try:
                for c,d in tweaks['sort_columns_at_startup']:
                    if not isinstance(d, bool):
                        d = True if d == 0 else False
                    sh.append((c, d))
            except:
                # Ignore invalid tweak values as users seem to often get them
                # wrong
                print('Ignoring invalid sort_columns_at_startup tweak, with error:')
                import traceback
                traceback.print_exc()
            old_state['sort_history'] = sh
            max_levels = max(3, len(sh))

        self.column_header.blockSignals(True)
        self.apply_state(old_state, max_sort_levels=max_levels)
        self.column_header.blockSignals(False)

        self.do_row_sizing()

        self.was_restored = True

    def refresh_row_sizing(self):
        self.row_sizing_done = False
        self.do_row_sizing()

    def do_row_sizing(self):
        # Resize all rows to have the correct height
        if not self.row_sizing_done and self.model().rowCount(QModelIndex()) > 0:
            self.resizeRowToContents(0)
            self.verticalHeader().setDefaultSectionSize(self.rowHeight(0) +
                                            gprefs['extra_row_spacing'])
            self.row_sizing_done = True

    def resize_column_to_fit(self, column):
        col = self.column_map.index(column)
        self.column_resized(col, self.columnWidth(col), self.columnWidth(col))

    def column_resized(self, col, old_size, new_size):
        # arbitrary: scroll bar + header + some
        max_width = self.width() - (self.verticalScrollBar().width() +
                                    self.verticalHeader().width() + 10)
        if max_width < 200:
            max_width = 200
        if new_size > max_width:
            self.column_header.blockSignals(True)
            self.setColumnWidth(col, max_width)
            self.column_header.blockSignals(False)

    # }}}

    # Initialization/Delegate Setup {{{

    def set_database(self, db):
        self.alternate_views.set_database(db)
        self.save_state()
        self._model.set_database(db)
        self.tags_delegate.set_database(db)
        self.cc_names_delegate.set_database(db)
        self.authors_delegate.set_database(db)
        self.series_delegate.set_auto_complete_function(db.all_series)
        self.publisher_delegate.set_auto_complete_function(db.all_publishers)
        self.alternate_views.set_database(db, stage=1)

    def database_changed(self, db):
        for i in range(self.model().columnCount(None)):
            if self.itemDelegateForColumn(i) in (self.rating_delegate,
                    self.timestamp_delegate, self.pubdate_delegate,
                    self.last_modified_delegate, self.languages_delegate):
                self.setItemDelegateForColumn(i, self.itemDelegate())

        cm = self.column_map

        for colhead in cm:
            if self._model.is_custom_column(colhead):
                cc = self._model.custom_columns[colhead]
                if cc['datatype'] == 'datetime':
                    delegate = CcDateDelegate(self)
                    delegate.set_format(cc['display'].get('date_format',''))
                    self.setItemDelegateForColumn(cm.index(colhead), delegate)
                elif cc['datatype'] == 'comments':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_comments_delegate)
                elif cc['datatype'] == 'text':
                    if cc['is_multiple']:
                        if cc['display'].get('is_names', False):
                            self.setItemDelegateForColumn(cm.index(colhead),
                                                          self.cc_names_delegate)
                        else:
                            self.setItemDelegateForColumn(cm.index(colhead),
                                                          self.tags_delegate)
                    else:
                        self.setItemDelegateForColumn(cm.index(colhead), self.cc_text_delegate)
                elif cc['datatype'] == 'series':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_text_delegate)
                elif cc['datatype'] in ('int', 'float'):
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_number_delegate)
                elif cc['datatype'] == 'bool':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_bool_delegate)
                elif cc['datatype'] == 'rating':
                    self.setItemDelegateForColumn(cm.index(colhead), self.rating_delegate)
                elif cc['datatype'] == 'composite':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_template_delegate)
                elif cc['datatype'] == 'enumeration':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_enum_delegate)
            else:
                dattr = colhead+'_delegate'
                delegate = colhead if hasattr(self, dattr) else 'text'
                self.setItemDelegateForColumn(cm.index(colhead), getattr(self,
                    delegate+'_delegate'))

        self.restore_state()
        self.set_ondevice_column_visibility()
        #}}}

    # Context Menu {{{
    def set_context_menu(self, menu, edit_collections_action):
        self.setContextMenuPolicy(Qt.DefaultContextMenu)
        self.context_menu = menu
        self.alternate_views.set_context_menu(menu)
        self.edit_collections_action = edit_collections_action

    def contextMenuEvent(self, event):
        sac = self.gui.iactions['Sort By']
        sort_added = tuple(ac for ac in self.context_menu.actions() if ac is sac.qaction)
        if sort_added:
            sac.update_menu()
        self.context_menu.popup(event.globalPos())
        event.accept()
    # }}}

    @property
    def column_map(self):
        return self._model.column_map

    @property
    def visible_columns(self):
        h = self.horizontalHeader()
        logical_indices = (x for x in xrange(h.count()) if not h.isSectionHidden(x))
        rmap = {i:x for i, x in enumerate(self.column_map)}
        return (rmap[h.visualIndex(x)] for x in logical_indices if h.visualIndex(x) > -1)

    def refresh_book_details(self):
        idx = self.currentIndex()
        if idx.isValid():
            self._model.current_changed(idx, idx)

    def scrollContentsBy(self, dx, dy):
        # Needed as Qt bug causes headerview to not always update when scrolling
        QTableView.scrollContentsBy(self, dx, dy)
        if dy != 0:
            self.column_header.update()

    def scroll_to_row(self, row):
        if row > -1:
            h = self.horizontalHeader()
            for i in range(h.count()):
                if not h.isSectionHidden(i) and h.sectionViewportPosition(i) >= 0:
                    self.scrollTo(self.model().index(row, i), self.PositionAtCenter)
                    break

    def set_current_row(self, row=0, select=True, for_sync=False):
        if row > -1 and row < self.model().rowCount(QModelIndex()):
            h = self.horizontalHeader()
            logical_indices = list(range(h.count()))
            logical_indices = [x for x in logical_indices if not
                    h.isSectionHidden(x)]
            pairs = [(x, h.visualIndex(x)) for x in logical_indices if
                    h.visualIndex(x) > -1]
            if not pairs:
                pairs = [(0, 0)]
            pairs.sort(cmp=lambda x,y:cmp(x[1], y[1]))
            i = pairs[0][0]
            index = self.model().index(row, i)
            if for_sync:
                sm = self.selectionModel()
                sm.setCurrentIndex(index, sm.NoUpdate)
            else:
                self.setCurrentIndex(index)
                if select:
                    sm = self.selectionModel()
                    sm.select(index, sm.ClearAndSelect|sm.Rows)

    def keyPressEvent(self, ev):
        val = self.horizontalScrollBar().value()
        ret = super(BooksView, self).keyPressEvent(ev)
        if ev.isAccepted() and ev.key() in (Qt.Key_Home, Qt.Key_End
                                            ) and ev.modifiers() & Qt.ControlModifier:
            self.horizontalScrollBar().setValue(val)
        return ret

    def ids_to_rows(self, ids):
        row_map = OrderedDict()
        ids = frozenset(ids)
        m = self.model()
        for row in xrange(m.rowCount(QModelIndex())):
            if len(row_map) >= len(ids):
                break
            c = m.id(row)
            if c in ids:
                row_map[c] = row
        return row_map

    def select_rows(self, identifiers, using_ids=True, change_current=True,
            scroll=True):
        '''
        Select rows identified by identifiers. identifiers can be a set of ids,
        row numbers or QModelIndexes.
        '''
        rows = set([x.row() if hasattr(x, 'row') else x for x in
            identifiers])
        if using_ids:
            rows = set([])
            identifiers = set(identifiers)
            m = self.model()
            for row in xrange(m.rowCount(QModelIndex())):
                if m.id(row) in identifiers:
                    rows.add(row)
        rows = list(sorted(rows))
        if rows:
            row = rows[0]
            if change_current:
                self.set_current_row(row, select=False)
            if scroll:
                self.scroll_to_row(row)
        sm = self.selectionModel()
        sel = QItemSelection()
        m = self.model()
        max_col = m.columnCount(QModelIndex()) - 1
        # Create a range based selector for each set of contiguous rows
        # as supplying selectors for each individual row causes very poor
        # performance if a large number of rows has to be selected.
        for k, g in itertools.groupby(enumerate(rows), lambda (i,x):i-x):
            group = list(map(operator.itemgetter(1), g))
            sel.merge(QItemSelection(m.index(min(group), 0),
                m.index(max(group), max_col)), sm.Select)
        sm.select(sel, sm.ClearAndSelect)
class LocationManager(QObject):  # {{{

    locations_changed = pyqtSignal()
    unmount_device = pyqtSignal()
    location_selected = pyqtSignal(object)
    configure_device = pyqtSignal()

    def __init__(self, parent=None):
        QObject.__init__(self, parent)
        self.free = [-1, -1, -1]
        self.count = 0
        self.location_actions = QActionGroup(self)
        self.location_actions.setExclusive(True)
        self.current_location = 'library'
        self._mem = []
        self.tooltips = {}

        self.all_actions = []

        def ac(name, text, icon, tooltip):
            icon = QIcon(I(icon))
            ac = self.location_actions.addAction(icon, text)
            setattr(self, 'location_' + name, ac)
            ac.setAutoRepeat(False)
            ac.setCheckable(True)
            receiver = partial(self._location_selected, name)
            ac.triggered.connect(receiver)
            self.tooltips[name] = tooltip

            m = QMenu(parent)
            self._mem.append(m)
            a = m.addAction(icon, tooltip)
            a.triggered.connect(receiver)
            if name != 'library':
                self._mem.append(a)
                a = m.addAction(QIcon(I('eject.png')), _('Eject this device'))
                a.triggered.connect(self._eject_requested)
                self._mem.append(a)
                a = m.addAction(QIcon(I('config.png')),
                                _('Configure this device'))
                a.triggered.connect(self._configure_requested)
                self._mem.append(a)

            else:
                ac.setToolTip(tooltip)
            ac.setMenu(m)
            ac.calibre_name = name

            self.all_actions.append(ac)
            return ac

        self.library_action = ac('library', _('Library'), 'lt.png',
                                 _('Show books in calibre library'))
        ac('main', _('Device'), 'reader.png',
           _('Show books in the main memory of the device'))
        ac('carda', _('Card A'), 'sd.png', _('Show books in storage card A'))
        ac('cardb', _('Card B'), 'sd.png', _('Show books in storage card B'))

    def set_switch_actions(self, quick_actions, rename_actions, delete_actions,
                           switch_actions, choose_action):
        self.switch_menu = self.library_action.menu()
        if self.switch_menu:
            self.switch_menu.addSeparator()
        else:
            self.switch_menu = QMenu()

        self.switch_menu.addAction(choose_action)
        self.cs_menus = []
        for t, acs in [(_('Quick switch'), quick_actions),
                       (_('Rename library'), rename_actions),
                       (_('Delete library'), delete_actions)]:
            if acs:
                self.cs_menus.append(QMenu(t))
                for ac in acs:
                    self.cs_menus[-1].addAction(ac)
                self.switch_menu.addMenu(self.cs_menus[-1])
        self.switch_menu.addSeparator()
        for ac in switch_actions:
            self.switch_menu.addAction(ac)

        if self.switch_menu != self.library_action.menu():
            self.library_action.setMenu(self.switch_menu)

    def _location_selected(self, location, *args):
        if location != self.current_location and hasattr(
                self, 'location_' + location):
            self.current_location = location
            self.location_selected.emit(location)
            getattr(self, 'location_' + location).setChecked(True)

    def _eject_requested(self, *args):
        self.unmount_device.emit()

    def _configure_requested(self):
        self.configure_device.emit()

    def update_devices(self, cp=(None, None), fs=[-1, -1, -1], icon=None):
        if icon is None:
            icon = I('reader.png')
        self.location_main.setIcon(QIcon(icon))
        had_device = self.has_device
        if cp is None:
            cp = (None, None)
        if isinstance(cp, (str, unicode)):
            cp = (cp, None)
        if len(fs) < 3:
            fs = list(fs) + [0]
        self.free[0] = fs[0]
        self.free[1] = fs[1]
        self.free[2] = fs[2]
        cpa, cpb = cp
        self.free[1] = fs[1] if fs[1] is not None and cpa is not None else -1
        self.free[2] = fs[2] if fs[2] is not None and cpb is not None else -1
        self.update_tooltips()
        if self.has_device != had_device:
            self.location_library.setChecked(True)
            self.locations_changed.emit()
            if not self.has_device:
                self.location_library.trigger()

    def update_tooltips(self):
        for i, loc in enumerate(('main', 'carda', 'cardb')):
            t = self.tooltips[loc]
            if self.free[i] > -1:
                t += u'\n\n%s ' % human_readable(self.free[i]) + _('available')
            ac = getattr(self, 'location_' + loc)
            ac.setToolTip(t)
            ac.setWhatsThis(t)
            ac.setStatusTip(t)

    @property
    def has_device(self):
        return max(self.free) > -1

    @property
    def available_actions(self):
        ans = [self.location_library]
        for i, loc in enumerate(('main', 'carda', 'cardb')):
            if self.free[i] > -1:
                ans.append(getattr(self, 'location_' + loc))
        return ans
Exemple #17
0
class TagsView(QTreeView): # {{{

    refresh_required        = pyqtSignal()
    tags_marked             = pyqtSignal(object)
    edit_user_category      = pyqtSignal(object)
    delete_user_category    = pyqtSignal(object)
    del_item_from_user_cat  = pyqtSignal(object, object, object)
    add_item_to_user_cat    = pyqtSignal(object, object, object)
    add_subcategory         = pyqtSignal(object)
    tags_list_edit          = pyqtSignal(object, object)
    saved_search_edit       = pyqtSignal(object)
    rebuild_saved_searches  = pyqtSignal()
    author_sort_edit        = pyqtSignal(object, object, object, object)
    tag_item_renamed        = pyqtSignal()
    search_item_renamed     = pyqtSignal()
    drag_drop_finished      = pyqtSignal(object)
    restriction_error       = pyqtSignal()
    tag_item_delete         = pyqtSignal(object, object, object)

    def __init__(self, parent=None):
        QTreeView.__init__(self, parent=None)
        self.alter_tb = None
        self.disable_recounting = False
        self.setUniformRowHeights(True)
        self.setCursor(Qt.PointingHandCursor)
        self.setIconSize(QSize(20, 20))
        self.setTabKeyNavigation(True)
        self.setAnimated(True)
        self.setHeaderHidden(True)
        self.setItemDelegate(TagDelegate(self))
        self.made_connections = False
        self.setAcceptDrops(True)
        self.setDragEnabled(True)
        self.setDragDropMode(self.DragDrop)
        self.setDropIndicatorShown(True)
        self.in_drag_drop = False
        self.setAutoExpandDelay(500)
        self.pane_is_visible = False
        self.search_icon = QIcon(I('search.png'))
        self.user_category_icon = QIcon(I('tb_folder.png'))
        self.delete_icon = QIcon(I('list_remove.png'))
        self.rename_icon = QIcon(I('edit-undo.png'))

        self._model = TagsModel(self)
        self._model.search_item_renamed.connect(self.search_item_renamed)
        self._model.refresh_required.connect(self.refresh_required,
                type=Qt.QueuedConnection)
        self._model.tag_item_renamed.connect(self.tag_item_renamed)
        self._model.restriction_error.connect(self.restriction_error)
        self._model.user_categories_edited.connect(self.user_categories_edited,
                type=Qt.QueuedConnection)
        self._model.drag_drop_finished.connect(self.drag_drop_finished)
        stylish_tb = '''
                QTreeView {
                    background-color: palette(window);
                    color: palette(window-text);
                    border: none;
                }
        '''
        self.setStyleSheet('''
                QTreeView::item {
                    border: 1px solid transparent;
                    padding-top:0.9ex;
                    padding-bottom:0.9ex;
                }

                QTreeView::item:hover {
                    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #e7effd, stop: 1 #cbdaf1);
                    border: 1px solid #bfcde4;
                    border-radius: 6px;
                }
        ''' + ('' if gprefs['tag_browser_old_look'] else stylish_tb))
        if gprefs['tag_browser_old_look']:
            self.setAlternatingRowColors(True)

    @property
    def hidden_categories(self):
        return self._model.hidden_categories

    @property
    def db(self):
        return self._model.db

    @property
    def collapse_model(self):
        return self._model.collapse_model

    def set_pane_is_visible(self, to_what):
        pv = self.pane_is_visible
        self.pane_is_visible = to_what
        if to_what and not pv:
            self.recount()

    def get_state(self):
        state_map = {}
        expanded_categories = []
        for row, category in enumerate(self._model.category_nodes):
            if self.isExpanded(self._model.index(row, 0, QModelIndex())):
                expanded_categories.append(category.category_key)
            states = [c.tag.state for c in category.child_tags()]
            names = [(c.tag.name, c.tag.category) for c in category.child_tags()]
            state_map[category.category_key] = dict(izip(names, states))
        return expanded_categories, state_map

    def reread_collapse_parameters(self):
        self._model.reread_collapse_model(self.get_state()[1])

    def set_database(self, db, alter_tb):
        self._model.set_database(db)
        self.alter_tb = alter_tb
        self.pane_is_visible = True # because TagsModel.set_database did a recount
        self.setModel(self._model)
        self.setContextMenuPolicy(Qt.CustomContextMenu)
        pop = self.db.CATEGORY_SORTS.index(config['sort_tags_by'])
        self.alter_tb.sort_menu.actions()[pop].setChecked(True)
        try:
            match_pop = self.db.MATCH_TYPE.index(config['match_tags_type'])
        except ValueError:
            match_pop = 0
        self.alter_tb.match_menu.actions()[match_pop].setChecked(True)
        if not self.made_connections:
            self.clicked.connect(self.toggle)
            self.customContextMenuRequested.connect(self.show_context_menu)
            self.refresh_required.connect(self.recount, type=Qt.QueuedConnection)
            self.alter_tb.sort_menu.triggered.connect(self.sort_changed)
            self.alter_tb.match_menu.triggered.connect(self.match_changed)
            self.made_connections = True
        self.refresh_signal_processed = True
        db.add_listener(self.database_changed)
        self.expanded.connect(self.item_expanded)

    def database_changed(self, event, ids):
        if self.refresh_signal_processed:
            self.refresh_signal_processed = False
            self.refresh_required.emit()

    def user_categories_edited(self, user_cats, nkey):
        state_map = self.get_state()[1]
        self.db.prefs.set('user_categories', user_cats)
        self._model.rebuild_node_tree(state_map=state_map)
        p = self._model.find_category_node('@'+nkey)
        self.show_item_at_path(p)

    @property
    def match_all(self):
        return (self.alter_tb and
                self.alter_tb.match_menu.actions()[1].isChecked())

    def sort_changed(self, action):
        for i, ac in enumerate(self.alter_tb.sort_menu.actions()):
            if ac is action:
                config.set('sort_tags_by', self.db.CATEGORY_SORTS[i])
                self.recount()
                break

    def match_changed(self, action):
        try:
            for i, ac in enumerate(self.alter_tb.match_menu.actions()):
                if ac is action:
                    config.set('match_tags_type', self.db.MATCH_TYPE[i])
        except:
            pass

    def mouseMoveEvent(self, event):
        dex = self.indexAt(event.pos())
        if self.in_drag_drop or not dex.isValid():
            QTreeView.mouseMoveEvent(self, event)
            return
        # Must deal with odd case where the node being dragged is 'virtual',
        # created to form a hierarchy. We can't really drag this node, but in
        # addition we can't allow drag recognition to notice going over some
        # other node and grabbing that one. So we set in_drag_drop to prevent
        # this from happening, turning it off when the user lifts the button.
        self.in_drag_drop = True
        if not self._model.flags(dex) & Qt.ItemIsDragEnabled:
            QTreeView.mouseMoveEvent(self, event)
            return
        md = self._model.mimeData([dex])
        pixmap = dex.data(Qt.DecorationRole).toPyObject().pixmap(25, 25)
        drag = QDrag(self)
        drag.setPixmap(pixmap)
        drag.setMimeData(md)
        if self._model.is_in_user_category(dex):
            drag.exec_(Qt.CopyAction|Qt.MoveAction, Qt.CopyAction)
        else:
            drag.exec_(Qt.CopyAction)

    def mouseReleaseEvent(self, event):
        # Swallow everything except leftButton so context menus work correctly
        if event.button() == Qt.LeftButton or self.in_drag_drop:
            QTreeView.mouseReleaseEvent(self, event)
            self.in_drag_drop = False

    def mouseDoubleClickEvent(self, event):
        # swallow these to avoid toggling and editing at the same time
        pass

    @property
    def search_string(self):
        tokens = self._model.tokens()
        joiner = ' and ' if self.match_all else ' or '
        return joiner.join(tokens)

    def toggle(self, index):
        self._toggle(index, None)

    def _toggle(self, index, set_to):
        '''
        set_to: if None, advance the state. Otherwise must be one of the values
        in TAG_SEARCH_STATES
        '''
        modifiers = int(QApplication.keyboardModifiers())
        exclusive = modifiers not in (Qt.CTRL, Qt.SHIFT)
        if self._model.toggle(index, exclusive, set_to=set_to):
            self.tags_marked.emit(self.search_string)

    def conditional_clear(self, search_string):
        if search_string != self.search_string:
            self.clear()

    def context_menu_handler(self, action=None, category=None,
                             key=None, index=None, search_state=None):
        if not action:
            return
        try:
            if action == 'set_icon':
                try:
                    path = choose_files(self, 'choose_category_icon',
                                _('Change Icon for: %s')%key, filters=[
                                ('Images', ['png', 'gif', 'jpg', 'jpeg'])],
                            all_files=False, select_only_single_file=True)
                    if path:
                        path = path[0]
                        p = QIcon(path).pixmap(QSize(128, 128))
                        d = os.path.join(config_dir, 'tb_icons')
                        if not os.path.exists(d):
                            os.makedirs(d)
                        with open(os.path.join(d, 'icon_'+
                            sanitize_file_name_unicode(key)+'.png'), 'wb') as f:
                            f.write(pixmap_to_data(p, format='PNG'))
                            path = os.path.basename(f.name)
                        self._model.set_custom_category_icon(key, unicode(path))
                        self.recount()
                except:
                    import traceback
                    traceback.print_exc()
                return
            if action == 'clear_icon':
                self._model.set_custom_category_icon(key, None)
                self.recount()
                return

            if action == 'edit_item':
                self.edit(index)
                return
            if action == 'delete_item':
                self.tag_item_delete.emit(key, index.id, index.original_name)
                return
            if action == 'open_editor':
                self.tags_list_edit.emit(category, key)
                return
            if action == 'manage_categories':
                self.edit_user_category.emit(category)
                return
            if action == 'search':
                self._toggle(index, set_to=search_state)
                return
            if action == 'add_to_category':
                tag = index.tag
                if len(index.children) > 0:
                    for c in index.all_children():
                        self.add_item_to_user_cat.emit(category, c.tag.original_name,
                                               c.tag.category)
                self.add_item_to_user_cat.emit(category, tag.original_name,
                                               tag.category)
                return
            if action == 'add_subcategory':
                self.add_subcategory.emit(key)
                return
            if action == 'search_category':
                self._toggle(index, set_to=search_state)
                return
            if action == 'delete_user_category':
                self.delete_user_category.emit(key)
                return
            if action == 'delete_search':
                saved_searches().delete(key)
                self.rebuild_saved_searches.emit()
                return
            if action == 'delete_item_from_user_category':
                tag = index.tag
                if len(index.children) > 0:
                    for c in index.children:
                        self.del_item_from_user_cat.emit(key, c.tag.original_name,
                                               c.tag.category)
                self.del_item_from_user_cat.emit(key, tag.original_name, tag.category)
                return
            if action == 'manage_searches':
                self.saved_search_edit.emit(category)
                return
            if action == 'edit_author_sort':
                self.author_sort_edit.emit(self, index, True, False)
                return
            if action == 'edit_author_link':
                self.author_sort_edit.emit(self, index, False, True)
                return

            reset_filter_categories = True
            if action == 'hide':
                self.hidden_categories.add(category)
            elif action == 'show':
                self.hidden_categories.discard(category)
            elif action == 'categorization':
                changed = self.collapse_model != category
                self._model.collapse_model = category
                if changed:
                    reset_filter_categories = False
                    gprefs['tags_browser_partition_method'] = category
            elif action == 'defaults':
                self.hidden_categories.clear()
            self.db.prefs.set('tag_browser_hidden_categories', list(self.hidden_categories))
            if reset_filter_categories:
                self._model.set_categories_filter(None)
            self._model.rebuild_node_tree()
        except:
            return

    def show_context_menu(self, point):
        def display_name( tag):
            if tag.category == 'search':
                n = tag.name
                if len(n) > 45:
                    n = n[:45] + '...'
                return "'" + n + "'"
            return tag.name

        index = self.indexAt(point)
        self.context_menu = QMenu(self)

        if index.isValid():
            item = index.data(Qt.UserRole).toPyObject()
            tag = None

            if item.type == TagTreeItem.TAG:
                tag_item = item
                tag = item.tag
                while item.type != TagTreeItem.CATEGORY:
                    item = item.parent

            if item.type == TagTreeItem.CATEGORY:
                if not item.category_key.startswith('@'):
                    while item.parent != self._model.root_item:
                        item = item.parent
                category = unicode(item.name.toString())
                key = item.category_key
                # Verify that we are working with a field that we know something about
                if key not in self.db.field_metadata:
                    return True

                # Did the user click on a leaf node?
                if tag:
                    # If the user right-clicked on an editable item, then offer
                    # the possibility of renaming that item.
                    if tag.is_editable:
                        # Add the 'rename' items
                        self.context_menu.addAction(self.rename_icon,
                                                    _('Rename %s')%display_name(tag),
                            partial(self.context_menu_handler, action='edit_item',
                                    index=index))
                        if key in ('tags', 'series', 'publisher') or \
                                self._model.db.field_metadata.is_custom_field(key):
                            self.context_menu.addAction(self.delete_icon,
                                                    _('Delete %s')%display_name(tag),
                                partial(self.context_menu_handler, action='delete_item',
                                    key=key, index=tag))
                        if key == 'authors':
                            self.context_menu.addAction(_('Edit sort for %s')%display_name(tag),
                                    partial(self.context_menu_handler,
                                            action='edit_author_sort', index=tag.id))
                            self.context_menu.addAction(_('Edit link for %s')%display_name(tag),
                                    partial(self.context_menu_handler,
                                            action='edit_author_link', index=tag.id))

                        # is_editable is also overloaded to mean 'can be added
                        # to a user category'
                        m = self.context_menu.addMenu(self.user_category_icon,
                                        _('Add %s to user category')%display_name(tag))
                        nt = self.model().category_node_tree
                        def add_node_tree(tree_dict, m, path):
                            p = path[:]
                            for k in sorted(tree_dict.keys(), key=sort_key):
                                p.append(k)
                                n = k[1:] if k.startswith('@') else k
                                m.addAction(self.user_category_icon, n,
                                    partial(self.context_menu_handler,
                                            'add_to_category',
                                            category='.'.join(p), index=tag_item))
                                if len(tree_dict[k]):
                                    tm = m.addMenu(self.user_category_icon,
                                                   _('Children of %s')%n)
                                    add_node_tree(tree_dict[k], tm, p)
                                p.pop()
                        add_node_tree(nt, m, [])
                    elif key == 'search' and tag.is_searchable:
                        self.context_menu.addAction(self.rename_icon,
                                                    _('Rename %s')%display_name(tag),
                            partial(self.context_menu_handler, action='edit_item',
                                    index=index))
                        self.context_menu.addAction(self.delete_icon,
                                _('Delete search %s')%display_name(tag),
                                partial(self.context_menu_handler,
                                        action='delete_search', key=tag.original_name))
                    if key.startswith('@') and not item.is_gst:
                        self.context_menu.addAction(self.user_category_icon,
                                _('Remove %(item)s from category %(cat)s')%
                                            dict(item=display_name(tag), cat=item.py_name),
                                partial(self.context_menu_handler,
                                        action='delete_item_from_user_category',
                                        key = key, index = tag_item))
                    if tag.is_searchable:
                        # Add the search for value items. All leaf nodes are searchable
                        self.context_menu.addAction(self.search_icon,
                                _('Search for %s')%display_name(tag),
                                partial(self.context_menu_handler, action='search',
                                        search_state=TAG_SEARCH_STATES['mark_plus'],
                                        index=index))
                        self.context_menu.addAction(self.search_icon,
                                _('Search for everything but %s')%display_name(tag),
                                partial(self.context_menu_handler, action='search',
                                        search_state=TAG_SEARCH_STATES['mark_minus'],
                                        index=index))
                    self.context_menu.addSeparator()
                elif key.startswith('@') and not item.is_gst:
                    if item.can_be_edited:
                        self.context_menu.addAction(self.rename_icon,
                            _('Rename %s')%item.py_name,
                            partial(self.context_menu_handler, action='edit_item',
                                    index=index))
                    self.context_menu.addAction(self.user_category_icon,
                            _('Add sub-category to %s')%item.py_name,
                            partial(self.context_menu_handler,
                                    action='add_subcategory', key=key))
                    self.context_menu.addAction(self.delete_icon,
                            _('Delete user category %s')%item.py_name,
                            partial(self.context_menu_handler,
                                    action='delete_user_category', key=key))
                    self.context_menu.addSeparator()
                # Hide/Show/Restore categories
                self.context_menu.addAction(_('Hide category %s') % category,
                    partial(self.context_menu_handler, action='hide',
                            category=key))
                if self.hidden_categories:
                    m = self.context_menu.addMenu(_('Show category'))
                    for col in sorted(self.hidden_categories,
                            key=lambda x: sort_key(self.db.field_metadata[x]['name'])):
                        m.addAction(self.db.field_metadata[col]['name'],
                            partial(self.context_menu_handler, action='show', category=col))

                # search by category. Some categories are not searchable, such
                # as search and news
                if item.tag.is_searchable:
                    self.context_menu.addAction(self.search_icon,
                            _('Search for books in category %s')%category,
                            partial(self.context_menu_handler,
                                    action='search_category',
                                    index=self._model.createIndex(item.row(), 0, item),
                                    search_state=TAG_SEARCH_STATES['mark_plus']))
                    self.context_menu.addAction(self.search_icon,
                            _('Search for books not in category %s')%category,
                            partial(self.context_menu_handler,
                                    action='search_category',
                                    index=self._model.createIndex(item.row(), 0, item),
                                    search_state=TAG_SEARCH_STATES['mark_minus']))
                # Offer specific editors for tags/series/publishers/saved searches
                self.context_menu.addSeparator()
                if key in ['tags', 'publisher', 'series'] or \
                            (self.db.field_metadata[key]['is_custom'] and
                             self.db.field_metadata[key]['datatype'] != 'composite'):
                    self.context_menu.addAction(_('Manage %s')%category,
                            partial(self.context_menu_handler, action='open_editor',
                                    category=tag.original_name if tag else None,
                                    key=key))
                elif key == 'authors':
                    self.context_menu.addAction(_('Manage %s')%category,
                            partial(self.context_menu_handler, action='edit_author_sort'))
                elif key == 'search':
                    self.context_menu.addAction(_('Manage Saved Searches'),
                        partial(self.context_menu_handler, action='manage_searches',
                                category=tag.name if tag else None))

                self.context_menu.addSeparator()
                self.context_menu.addAction(_('Change category icon'),
                        partial(self.context_menu_handler, action='set_icon', key=key))
                self.context_menu.addAction(_('Restore default icon'),
                        partial(self.context_menu_handler, action='clear_icon', key=key))

                # Always show the user categories editor
                self.context_menu.addSeparator()
                if key.startswith('@') and \
                        key[1:] in self.db.prefs.get('user_categories', {}).keys():
                    self.context_menu.addAction(_('Manage User Categories'),
                            partial(self.context_menu_handler, action='manage_categories',
                                    category=key[1:]))
                else:
                    self.context_menu.addAction(_('Manage User Categories'),
                            partial(self.context_menu_handler, action='manage_categories',
                                    category=None))

        if self.hidden_categories:
            if not self.context_menu.isEmpty():
                self.context_menu.addSeparator()
            self.context_menu.addAction(_('Show all categories'),
                        partial(self.context_menu_handler, action='defaults'))


        m = self.context_menu.addMenu(_('Change sub-categorization scheme'))
        da = m.addAction(_('Disable'),
            partial(self.context_menu_handler, action='categorization', category='disable'))
        fla = m.addAction(_('By first letter'),
            partial(self.context_menu_handler, action='categorization', category='first letter'))
        pa = m.addAction(_('Partition'),
            partial(self.context_menu_handler, action='categorization', category='partition'))
        if self.collapse_model == 'disable':
            da.setCheckable(True)
            da.setChecked(True)
        elif self.collapse_model == 'first letter':
            fla.setCheckable(True)
            fla.setChecked(True)
        else:
            pa.setCheckable(True)
            pa.setChecked(True)

        if config['sort_tags_by'] != "name":
            fla.setEnabled(False)
            m.hovered.connect(self.collapse_menu_hovered)
            fla.setToolTip(_('First letter is usable only when sorting by name'))
            # Apparently one cannot set a tooltip to empty, so use a star and
            # deal with it in the hover method
            da.setToolTip('*')
            pa.setToolTip('*')

        if not self.context_menu.isEmpty():
            self.context_menu.popup(self.mapToGlobal(point))
        return True

    def collapse_menu_hovered(self, action):
        tip = action.toolTip()
        if tip == '*':
            tip = ''
        QToolTip.showText(QCursor.pos(), tip)

    def dragMoveEvent(self, event):
        QTreeView.dragMoveEvent(self, event)
        self.setDropIndicatorShown(False)
        index = self.indexAt(event.pos())
        if not index.isValid():
            return
        src_is_tb = event.mimeData().hasFormat('application/calibre+from_tag_browser')
        item = index.data(Qt.UserRole).toPyObject()
        if item.type == TagTreeItem.ROOT:
            return
        flags = self._model.flags(index)
        if item.type == TagTreeItem.TAG and flags & Qt.ItemIsDropEnabled:
            self.setDropIndicatorShown(not src_is_tb)
            return
        if item.type == TagTreeItem.CATEGORY and not item.is_gst:
            fm_dest = self.db.metadata_for_field(item.category_key)
            if fm_dest['kind'] == 'user':
                if src_is_tb:
                    if event.dropAction() == Qt.MoveAction:
                        data = str(event.mimeData().data('application/calibre+from_tag_browser'))
                        src = cPickle.loads(data)
                        for s in src:
                            if s[0] == TagTreeItem.TAG and \
                                    (not s[1].startswith('@') or s[2]):
                                return
                    self.setDropIndicatorShown(True)
                    return
                md = event.mimeData()
                if hasattr(md, 'column_name'):
                    fm_src = self.db.metadata_for_field(md.column_name)
                    if md.column_name in ['authors', 'publisher', 'series'] or \
                            (fm_src['is_custom'] and (
                             (fm_src['datatype'] in ['series', 'text', 'enumeration'] and
                              not fm_src['is_multiple']) or
                             (fm_src['datatype'] == 'composite' and
                              fm_src['display'].get('make_category', False)))):
                        self.setDropIndicatorShown(True)

    def clear(self):
        if self.model():
            self.model().clear_state()

    def is_visible(self, idx):
        item = idx.data(Qt.UserRole).toPyObject()
        if getattr(item, 'type', None) == TagTreeItem.TAG:
            idx = idx.parent()
        return self.isExpanded(idx)

    def recount(self, *args):
        '''
        Rebuild the category tree, expand any categories that were expanded,
        reset the search states, and reselect the current node.
        '''
        if self.disable_recounting or not self.pane_is_visible:
            return
        self.refresh_signal_processed = True
        ci = self.currentIndex()
        if not ci.isValid():
            ci = self.indexAt(QPoint(10, 10))
        path = self.model().path_for_index(ci) if self.is_visible(ci) else None
        expanded_categories, state_map = self.get_state()
        self._model.rebuild_node_tree(state_map=state_map)
        self.blockSignals(True)
        for category in expanded_categories:
            idx = self._model.index_for_category(category)
            if idx is not None and idx.isValid():
                self.expand(idx)
        self.show_item_at_path(path)
        self.blockSignals(False)

    def show_item_at_path(self, path, box=False,
                          position=QTreeView.PositionAtCenter):
        '''
        Scroll the browser and open categories to show the item referenced by
        path. If possible, the item is placed in the center. If box=True, a
        box is drawn around the item.
        '''
        if path:
            self.show_item_at_index(self._model.index_for_path(path), box=box,
                                    position=position)

    def expand_parent(self, idx):
        # Needed otherwise Qt sometimes segfaults if the node is buried in a
        # collapsed, off screen hierarchy. To be safe, we expand from the
        # outermost in
        p = self._model.parent(idx)
        if p.isValid():
            self.expand_parent(p)
        self.expand(idx)

    def show_item_at_index(self, idx, box=False,
                           position=QTreeView.PositionAtCenter):
        if idx.isValid() and idx.data(Qt.UserRole).toPyObject() is not self._model.root_item:
            self.expand_parent(idx)
            self.setCurrentIndex(idx)
            self.scrollTo(idx, position)
            if box:
                self._model.set_boxed(idx)

    def item_expanded(self, idx):
        '''
        Called by the expanded signal
        '''
        self.setCurrentIndex(idx)
Exemple #18
0
class GEditorMenuBar(QMenuBar):
    def __init__(self, parent):
        QMenuBar.__init__(self, parent)

        # Menu items
        self._fileM = QMenu(self.tr("File"))
        self._editM = QMenu(self.tr("Edit"))
        self._viewM = QMenu(self.tr("View"))
        self._optionM = QMenu(self.tr("Options"))

        self.addMenu(self._fileM)
        self.addMenu(self._editM)
        self.addMenu(self._viewM)
        self.addMenu(self._optionM)

        # Actions
        self._connectDatabaseA = QAction(self.tr("Connect a PostGIS database"),
                                         self.parent())
        self._connectDatabaseA.setShortcut(QKeySequence("Ctrl+Shift+C"))
        self.parent().connect(self._connectDatabaseA, SIGNAL("triggered()"),
                              self.parent().dialConnectDatabase)

        self._importDatabaseDataA = QAction(
            self.tr("Import data from database"), self.parent())
        self._importDatabaseDataA.setShortcut(QKeySequence("Ctrl+Shift+I"))
        self.parent().connect(self._importDatabaseDataA, SIGNAL("triggered()"),
                              self.parent().dialImportDatabaseData)

        self._importVectorFileDataA = QAction(
            self.tr("Import vector from file"), self.parent())
        self._importVectorFileDataA.setShortcut(QKeySequence("Ctrl+Shift+V"))
        self.parent().connect(self._importVectorFileDataA,
                              SIGNAL("triggered()"),
                              self.parent().dialImportVectorFileData)

        self._importRasterFileDataA = QAction(
            self.tr("Import raster data from file"), self.parent())
        self._importRasterFileDataA.setShortcut(QKeySequence("Ctrl+Shift+R"))
        self.parent().connect(self._importRasterFileDataA,
                              SIGNAL("triggered()"),
                              self.parent().dialImportRasterFileData)

        self._colorLayerA = QAction(self.tr("Select layer color"),
                                    self.parent())
        self.parent().connect(self._colorLayerA, SIGNAL("triggered()"),
                              self.parent().dialSelectLayerColor)

        # Add actions to menu
        self._fileM.addAction(self._importVectorFileDataA)
        self._fileM.addAction(self._importRasterFileDataA)
        self._fileM.addSeparator()
        self._fileM.addAction(self._connectDatabaseA)
        self._fileM.addAction(self._importDatabaseDataA)

        self._viewM.addAction(self._colorLayerA)

    def dial(self):
        dial = QDialog(self)
        dial.setWindowTitle("Select a layer")
        layerList = QListWidget(dial)
        db = GPostGISDatabase()
        for t in db.tables():
            layerList.addItem(t)
        dial.setBaseSize(layerList.minimumSize())
        dial.show()
Exemple #19
0
class Scheduler(QObject):

    INTERVAL = 1 # minutes

    delete_old_news = pyqtSignal(object)
    start_recipe_fetch = pyqtSignal(object)

    def __init__(self, parent, db):
        QObject.__init__(self, parent)
        self.internet_connection_failed = False
        self._parent = parent
        self.no_internet_msg = _('Cannot download news as no internet connection '
                'is active')
        self.no_internet_dialog = d = error_dialog(self._parent,
                self.no_internet_msg, _('No internet connection'),
                show_copy_button=False)
        d.setModal(False)

        self.recipe_model = RecipeModel()
        self.db = db
        self.lock = QMutex(QMutex.Recursive)
        self.download_queue = set([])

        self.news_menu = QMenu()
        self.news_icon = QIcon(I('news.png'))
        self.scheduler_action = QAction(QIcon(I('scheduler.png')), _('Schedule news download'), self)
        self.news_menu.addAction(self.scheduler_action)
        self.scheduler_action.triggered[bool].connect(self.show_dialog)
        self.cac = QAction(QIcon(I('user_profile.png')), _('Add a custom news source'), self)
        self.cac.triggered[bool].connect(self.customize_feeds)
        self.news_menu.addAction(self.cac)
        self.news_menu.addSeparator()
        self.all_action = self.news_menu.addAction(
                _('Download all scheduled news sources'),
                self.download_all_scheduled)

        self.timer = QTimer(self)
        self.timer.start(int(self.INTERVAL * 60 * 1000))
        self.timer.timeout.connect(self.check)
        self.oldest = gconf['oldest_news']
        QTimer.singleShot(5 * 1000, self.oldest_check)

    def database_changed(self, db):
        self.db = db

    def oldest_check(self):
        if self.oldest > 0:
            delta = timedelta(days=self.oldest)
            try:
                ids = list(self.db.tags_older_than(_('News'),
                    delta, must_have_authors=['calibre']))
            except:
                # Happens if library is being switched
                ids = []
            if ids:
                if ids:
                    self.delete_old_news.emit(ids)
        QTimer.singleShot(60 * 60 * 1000, self.oldest_check)


    def show_dialog(self, *args):
        self.lock.lock()
        try:
            d = SchedulerDialog(self.recipe_model)
            d.download.connect(self.download_clicked)
            d.exec_()
            gconf['oldest_news'] = self.oldest = d.old_news.value()
            d.break_cycles()
        finally:
            self.lock.unlock()

    def customize_feeds(self, *args):
        from calibre.gui2.dialogs.user_profiles import UserProfiles
        d = UserProfiles(self._parent, self.recipe_model)
        d.exec_()
        d.break_cycles()

    def do_download(self, urn):
        self.lock.lock()
        try:
            account_info = self.recipe_model.get_account_info(urn)
            customize_info = self.recipe_model.get_customize_info(urn)
            recipe = self.recipe_model.recipe_from_urn(urn)
            un = pw = None
            if account_info is not None:
                un, pw = account_info
            add_title_tag, custom_tags, keep_issues = customize_info
            script = self.recipe_model.get_recipe(urn)
            pt = PersistentTemporaryFile('_builtin.recipe')
            pt.write(script)
            pt.close()
            arg = {
                    'username': un,
                    'password': pw,
                    'add_title_tag':add_title_tag,
                    'custom_tags':custom_tags,
                    'recipe':pt.name,
                    'title':recipe.get('title',''),
                    'urn':urn,
                    'keep_issues':keep_issues
                   }
            self.download_queue.add(urn)
            self.start_recipe_fetch.emit(arg)
        finally:
            self.lock.unlock()

    def recipe_downloaded(self, arg):
        self.lock.lock()
        try:
            self.recipe_model.update_last_downloaded(arg['urn'])
            self.download_queue.remove(arg['urn'])
        finally:
            self.lock.unlock()

    def recipe_download_failed(self, arg):
        self.lock.lock()
        try:
            self.recipe_model.update_last_downloaded(arg['urn'])
            self.download_queue.remove(arg['urn'])
        finally:
            self.lock.unlock()

    def download_clicked(self, urn):
        if urn is not None:
            return self.download(urn)
        for urn in self.recipe_model.scheduled_urns():
            if not self.download(urn):
                break

    def download_all_scheduled(self):
        self.download_clicked(None)

    def has_internet_connection(self):
        if not internet_connected():
            if not self.internet_connection_failed:
                self.internet_connection_failed = True
                if self._parent.is_minimized_to_tray:
                    self._parent.status_bar.show_message(self.no_internet_msg,
                            5000)
                elif not self.no_internet_dialog.isVisible():
                    self.no_internet_dialog.show()
            return False
        self.internet_connection_failed = False
        if self.no_internet_dialog.isVisible():
            self.no_internet_dialog.hide()
        return True

    def download(self, urn):
        self.lock.lock()
        if not self.has_internet_connection():
            return False
        doit = urn not in self.download_queue
        self.lock.unlock()
        if doit:
            self.do_download(urn)
        return True

    def check(self):
        recipes = self.recipe_model.get_to_be_downloaded_recipes()
        for urn in recipes:
            if not self.download(urn):
                # No internet connection, we will try again in a minute
                break
Exemple #20
0
    def show_context_menu(self, pos):
        m = QMenu(self)
        a = m.addAction
        c = self.editor.cursorForPosition(pos)
        origc = QTextCursor(c)
        r = origr = self.editor.syntax_range_for_cursor(c)
        if (r is None or not r.format.property(SPELL_PROPERTY).toBool()
            ) and c.positionInBlock() > 0:
            c.setPosition(c.position() - 1)
            r = self.editor.syntax_range_for_cursor(c)

        if r is not None and r.format.property(SPELL_PROPERTY).toBool():
            word = self.editor.text_for_range(c.block(), r)
            locale = self.editor.spellcheck_locale_for_cursor(c)
            orig_pos = c.position()
            c.setPosition(orig_pos - utf16_length(word))
            found = False
            self.editor.setTextCursor(c)
            if self.editor.find_spell_word([word],
                                           locale.langcode,
                                           center_on_cursor=False):
                found = True
                fc = self.editor.textCursor()
                if fc.position() < c.position():
                    self.editor.find_spell_word([word],
                                                locale.langcode,
                                                center_on_cursor=False)
            if found:
                suggestions = dictionaries.suggestions(word, locale)[:7]
                if suggestions:
                    for suggestion in suggestions:
                        ac = m.addAction(
                            suggestion,
                            partial(self.editor.simple_replace, suggestion))
                        f = ac.font()
                        f.setBold(True), ac.setFont(f)
                    m.addSeparator()
                m.addAction(actions['spell-next'])
                m.addAction(_('Ignore this word'),
                            partial(self._nuke_word, None, word, locale))
                dics = dictionaries.active_user_dictionaries
                if len(dics) > 0:
                    if len(dics) == 1:
                        m.addAction(
                            _('Add this word to the dictionary: {0}').format(
                                dics[0].name),
                            partial(self._nuke_word, dics[0].name, word,
                                    locale))
                    else:
                        ac = m.addAction(_('Add this word to the dictionary'))
                        dmenu = QMenu(m)
                        ac.setMenu(dmenu)
                        for dic in dics:
                            dmenu.addAction(
                                dic.name,
                                partial(self._nuke_word, dic.name, word,
                                        locale))
                m.addSeparator()

        if origr is not None and origr.format.property(LINK_PROPERTY).toBool():
            href = self.editor.text_for_range(origc.block(), origr)
            m.addAction(
                _('Open %s') % href, partial(self.link_clicked.emit, href))

        if origr is not None and (
                origr.format.property(TAG_NAME_PROPERTY).toBool()
                or origr.format.property(CSS_PROPERTY).toBool()):
            word = self.editor.text_for_range(origc.block(), origr)
            item_type = 'tag_name' if origr.format.property(
                TAG_NAME_PROPERTY).toBool() else 'css_property'
            url = help_url(word,
                           item_type,
                           self.editor.highlighter.doc_name,
                           extra_data=current_container().opf_version)
            if url is not None:
                m.addAction(
                    _('Show help for: %s') % word, partial(open_url, url))

        for x in ('undo', 'redo'):
            a(actions['editor-%s' % x])
        m.addSeparator()
        for x in ('cut', 'copy', 'paste'):
            a(actions['editor-' + x])
        m.addSeparator()
        m.addAction(_('&Select all'), self.editor.select_all)
        m.addAction(actions['mark-selected-text'])
        if self.syntax == 'html':
            m.addAction(actions['multisplit'])
        m.exec_(self.editor.mapToGlobal(pos))
Exemple #21
0
    def __init__(self, parent, hide_on_close=False):
        QMainWindow.__init__(self, parent)
        self.setWindowIcon(pixmaps.tigger_starface.icon())
        self._currier = PersistentCurrier()
        self.hide()
        # init column constants
        for icol, col in enumerate(self.ViewModelColumns):
            setattr(self, "Column%s" % col.capitalize(), icol)
        # init GUI
        self.setWindowTitle("Tigger")
        # self.setIcon(pixmaps.purr_logo.pm())
        cw = QWidget(self)
        self.setCentralWidget(cw)
        cwlo = QVBoxLayout(cw)
        cwlo.setMargin(5)
        # make splitter
        spl1 = self._splitter1 = QSplitter(Qt.Vertical, cw)
        spl1.setOpaqueResize(False)
        cwlo.addWidget(spl1)
        # Create listview of LSM entries
        self.tw = SkyModelTreeWidget(spl1)
        self.tw.hide()

        # split bottom pane
        spl2 = self._splitter2 = QSplitter(Qt.Horizontal, spl1)
        spl2.setOpaqueResize(False)
        self._skyplot_stack = QWidget(spl2)
        self._skyplot_stack_lo = QVBoxLayout(self._skyplot_stack)
        self._skyplot_stack_lo.setContentsMargins(0, 0, 0, 0)

        # add plot
        self.skyplot = SkyModelPlotter(self._skyplot_stack, self)
        self.skyplot.resize(128, 128)
        self.skyplot.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Preferred)
        self._skyplot_stack_lo.addWidget(self.skyplot, 1000)
        self.skyplot.hide()
        QObject.connect(self.skyplot, SIGNAL("imagesChanged"), self._imagesChanged)
        QObject.connect(self.skyplot, SIGNAL("showMessage"), self.showMessage)
        QObject.connect(self.skyplot, SIGNAL("showErrorMessage"), self.showErrorMessage)

        self._grouptab_stack = QWidget(spl2)
        self._grouptab_stack_lo = lo = QVBoxLayout(self._grouptab_stack)
        self._grouptab_stack_lo.setContentsMargins(0, 0, 0, 0)
        # add groupings table
        self.grouptab = ModelGroupsTable(self._grouptab_stack)
        self.grouptab.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)
        QObject.connect(self, SIGNAL("hasSkyModel"), self.grouptab.setEnabled)
        lo.addWidget(self.grouptab, 1000)
        lo.addStretch(1)
        self.grouptab.hide()

        # add image controls -- parentless for now (setLayout will reparent them anyway)
        self.imgman = ImageManager()
        self.skyplot.setImageManager(self.imgman)
        QObject.connect(self.imgman, SIGNAL("imagesChanged"), self._imagesChanged)
        QObject.connect(self.imgman, SIGNAL("showMessage"), self.showMessage)
        QObject.connect(self.imgman, SIGNAL("showErrorMessage"), self.showErrorMessage)

        # enable status line
        self.statusBar().show()
        # Create and populate main menu
        menubar = self.menuBar()
        # File menu
        file_menu = menubar.addMenu("&File")
        qa_open = file_menu.addAction("&Open model...", self._openFileCallback, Qt.CTRL + Qt.Key_O)
        qa_merge = file_menu.addAction("&Merge in model...", self._mergeFileCallback, Qt.CTRL + Qt.SHIFT + Qt.Key_O)
        QObject.connect(self, SIGNAL("hasSkyModel"), qa_merge.setEnabled)
        file_menu.addSeparator()
        qa_save = file_menu.addAction("&Save model", self.saveFile, Qt.CTRL + Qt.Key_S)
        QObject.connect(self, SIGNAL("isUpdated"), qa_save.setEnabled)
        qa_save_as = file_menu.addAction("Save model &as...", self.saveFileAs)
        QObject.connect(self, SIGNAL("hasSkyModel"), qa_save_as.setEnabled)
        qa_save_selection_as = file_menu.addAction("Save selection as...", self.saveSelectionAs)
        QObject.connect(self, SIGNAL("hasSelection"), qa_save_selection_as.setEnabled)
        file_menu.addSeparator()
        qa_close = file_menu.addAction("&Close model", self.closeFile, Qt.CTRL + Qt.Key_W)
        QObject.connect(self, SIGNAL("hasSkyModel"), qa_close.setEnabled)
        qa_quit = file_menu.addAction("Quit", self.close, Qt.CTRL + Qt.Key_Q)

        # Image menu
        menubar.addMenu(self.imgman.getMenu())
        # Plot menu
        menubar.addMenu(self.skyplot.getMenu())

        # LSM Menu
        em = QMenu("&LSM", self)
        self._qa_em = menubar.addMenu(em)
        self._qa_em.setVisible(False)
        QObject.connect(self, SIGNAL("hasSkyModel"), self._qa_em.setVisible)
        self._column_view_menu = QMenu("&Show columns", self)
        self._qa_cv_menu = em.addMenu(self._column_view_menu)
        em.addSeparator()
        em.addAction("Select &all", self._selectAll, Qt.CTRL + Qt.Key_A)
        em.addAction("&Invert selection", self._selectInvert, Qt.CTRL + Qt.Key_I)
        em.addAction("Select b&y attribute...", self._showSourceSelector, Qt.CTRL + Qt.Key_Y)
        em.addSeparator()
        qa_add_tag = em.addAction("&Tag selection...", self.addTagToSelection, Qt.CTRL + Qt.Key_T)
        QObject.connect(self, SIGNAL("hasSelection"), qa_add_tag.setEnabled)
        qa_del_tag = em.addAction("&Untag selection...", self.removeTagsFromSelection, Qt.CTRL + Qt.Key_U)
        QObject.connect(self, SIGNAL("hasSelection"), qa_del_tag.setEnabled)
        qa_del_sel = em.addAction("&Delete selection", self._deleteSelection)
        QObject.connect(self, SIGNAL("hasSelection"), qa_del_sel.setEnabled)

        # Tools menu
        tm = self._tools_menu = QMenu("&Tools", self)
        self._qa_tm = menubar.addMenu(tm)
        self._qa_tm.setVisible(False)
        QObject.connect(self, SIGNAL("hasSkyModel"), self._qa_tm.setVisible)

        # Help menu
        menubar.addSeparator()
        hm = self._help_menu = menubar.addMenu("&Help")
        hm.addAction("&About...", self._showAboutDialog)
        self._about_dialog = None

        # message handlers
        self.qerrmsg = QErrorMessage(self)

        # set initial state
        self.setAcceptDrops(True)
        self.model = None
        self.filename = None
        self._display_filename = None
        self._open_file_dialog = self._merge_file_dialog = self._save_as_dialog = self._save_sel_as_dialog = self._open_image_dialog = None
        self.emit(SIGNAL("isUpdated"), False)
        self.emit(SIGNAL("hasSkyModel"), False)
        self.emit(SIGNAL("hasSelection"), False)
        self._exiting = False

        # set initial layout
        self._current_layout = None
        self.setLayout(self.LayoutEmpty)
        dprint(1, "init complete")
Exemple #22
0
class TagsView(QTreeView):  # {{{

    refresh_required = pyqtSignal()
    tags_marked = pyqtSignal(object)
    edit_user_category = pyqtSignal(object)
    delete_user_category = pyqtSignal(object)
    del_item_from_user_cat = pyqtSignal(object, object, object)
    add_item_to_user_cat = pyqtSignal(object, object, object)
    add_subcategory = pyqtSignal(object)
    tags_list_edit = pyqtSignal(object, object)
    saved_search_edit = pyqtSignal(object)
    rebuild_saved_searches = pyqtSignal()
    author_sort_edit = pyqtSignal(object, object, object, object)
    tag_item_renamed = pyqtSignal()
    search_item_renamed = pyqtSignal()
    drag_drop_finished = pyqtSignal(object)
    restriction_error = pyqtSignal()
    tag_item_delete = pyqtSignal(object, object, object)

    def __init__(self, parent=None):
        QTreeView.__init__(self, parent=None)
        self.alter_tb = None
        self.disable_recounting = False
        self.setUniformRowHeights(True)
        self.setCursor(Qt.PointingHandCursor)
        self.setIconSize(QSize(20, 20))
        self.setTabKeyNavigation(True)
        self.setAnimated(True)
        self.setHeaderHidden(True)
        self.setItemDelegate(TagDelegate(self))
        self.made_connections = False
        self.setAcceptDrops(True)
        self.setDragEnabled(True)
        self.setDragDropMode(self.DragDrop)
        self.setDropIndicatorShown(True)
        self.in_drag_drop = False
        self.setAutoExpandDelay(500)
        self.pane_is_visible = False
        self.search_icon = QIcon(I('search.png'))
        self.user_category_icon = QIcon(I('tb_folder.png'))
        self.delete_icon = QIcon(I('list_remove.png'))
        self.rename_icon = QIcon(I('edit-undo.png'))

        self._model = TagsModel(self)
        self._model.search_item_renamed.connect(self.search_item_renamed)
        self._model.refresh_required.connect(self.refresh_required,
                                             type=Qt.QueuedConnection)
        self._model.tag_item_renamed.connect(self.tag_item_renamed)
        self._model.restriction_error.connect(self.restriction_error)
        self._model.user_categories_edited.connect(self.user_categories_edited,
                                                   type=Qt.QueuedConnection)
        self._model.drag_drop_finished.connect(self.drag_drop_finished)
        stylish_tb = '''
                QTreeView {
                    background-color: palette(window);
                    color: palette(window-text);
                    border: none;
                }
        '''
        self.setStyleSheet('''
                QTreeView::item {
                    border: 1px solid transparent;
                    padding-top:0.9ex;
                    padding-bottom:0.9ex;
                }

                QTreeView::item:hover {
                    background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #e7effd, stop: 1 #cbdaf1);
                    border: 1px solid #bfcde4;
                    border-radius: 6px;
                }
        ''' + ('' if gprefs['tag_browser_old_look'] else stylish_tb))
        if gprefs['tag_browser_old_look']:
            self.setAlternatingRowColors(True)

    @property
    def hidden_categories(self):
        return self._model.hidden_categories

    @property
    def db(self):
        return self._model.db

    @property
    def collapse_model(self):
        return self._model.collapse_model

    def set_pane_is_visible(self, to_what):
        pv = self.pane_is_visible
        self.pane_is_visible = to_what
        if to_what and not pv:
            self.recount()

    def get_state(self):
        state_map = {}
        expanded_categories = []
        for row, category in enumerate(self._model.category_nodes):
            if self.isExpanded(self._model.index(row, 0, QModelIndex())):
                expanded_categories.append(category.category_key)
            states = [c.tag.state for c in category.child_tags()]
            names = [(c.tag.name, c.tag.category)
                     for c in category.child_tags()]
            state_map[category.category_key] = dict(izip(names, states))
        return expanded_categories, state_map

    def reread_collapse_parameters(self):
        self._model.reread_collapse_model(self.get_state()[1])

    def set_database(self, db, alter_tb):
        self._model.set_database(db)
        self.alter_tb = alter_tb
        self.pane_is_visible = True  # because TagsModel.set_database did a recount
        self.setModel(self._model)
        self.setContextMenuPolicy(Qt.CustomContextMenu)
        pop = self.db.CATEGORY_SORTS.index(config['sort_tags_by'])
        self.alter_tb.sort_menu.actions()[pop].setChecked(True)
        try:
            match_pop = self.db.MATCH_TYPE.index(config['match_tags_type'])
        except ValueError:
            match_pop = 0
        self.alter_tb.match_menu.actions()[match_pop].setChecked(True)
        if not self.made_connections:
            self.clicked.connect(self.toggle)
            self.customContextMenuRequested.connect(self.show_context_menu)
            self.refresh_required.connect(self.recount,
                                          type=Qt.QueuedConnection)
            self.alter_tb.sort_menu.triggered.connect(self.sort_changed)
            self.alter_tb.match_menu.triggered.connect(self.match_changed)
            self.made_connections = True
        self.refresh_signal_processed = True
        db.add_listener(self.database_changed)
        self.expanded.connect(self.item_expanded)

    def database_changed(self, event, ids):
        if self.refresh_signal_processed:
            self.refresh_signal_processed = False
            self.refresh_required.emit()

    def user_categories_edited(self, user_cats, nkey):
        state_map = self.get_state()[1]
        self.db.prefs.set('user_categories', user_cats)
        self._model.rebuild_node_tree(state_map=state_map)
        p = self._model.find_category_node('@' + nkey)
        self.show_item_at_path(p)

    @property
    def match_all(self):
        return (self.alter_tb
                and self.alter_tb.match_menu.actions()[1].isChecked())

    def sort_changed(self, action):
        for i, ac in enumerate(self.alter_tb.sort_menu.actions()):
            if ac is action:
                config.set('sort_tags_by', self.db.CATEGORY_SORTS[i])
                self.recount()
                break

    def match_changed(self, action):
        try:
            for i, ac in enumerate(self.alter_tb.match_menu.actions()):
                if ac is action:
                    config.set('match_tags_type', self.db.MATCH_TYPE[i])
        except:
            pass

    def mouseMoveEvent(self, event):
        dex = self.indexAt(event.pos())
        if self.in_drag_drop or not dex.isValid():
            QTreeView.mouseMoveEvent(self, event)
            return
        # Must deal with odd case where the node being dragged is 'virtual',
        # created to form a hierarchy. We can't really drag this node, but in
        # addition we can't allow drag recognition to notice going over some
        # other node and grabbing that one. So we set in_drag_drop to prevent
        # this from happening, turning it off when the user lifts the button.
        self.in_drag_drop = True
        if not self._model.flags(dex) & Qt.ItemIsDragEnabled:
            QTreeView.mouseMoveEvent(self, event)
            return
        md = self._model.mimeData([dex])
        pixmap = dex.data(Qt.DecorationRole).toPyObject().pixmap(25, 25)
        drag = QDrag(self)
        drag.setPixmap(pixmap)
        drag.setMimeData(md)
        if self._model.is_in_user_category(dex):
            drag.exec_(Qt.CopyAction | Qt.MoveAction, Qt.CopyAction)
        else:
            drag.exec_(Qt.CopyAction)

    def mouseReleaseEvent(self, event):
        # Swallow everything except leftButton so context menus work correctly
        if event.button() == Qt.LeftButton or self.in_drag_drop:
            QTreeView.mouseReleaseEvent(self, event)
            self.in_drag_drop = False

    def mouseDoubleClickEvent(self, event):
        # swallow these to avoid toggling and editing at the same time
        pass

    @property
    def search_string(self):
        tokens = self._model.tokens()
        joiner = ' and ' if self.match_all else ' or '
        return joiner.join(tokens)

    def toggle(self, index):
        self._toggle(index, None)

    def _toggle(self, index, set_to):
        '''
        set_to: if None, advance the state. Otherwise must be one of the values
        in TAG_SEARCH_STATES
        '''
        modifiers = int(QApplication.keyboardModifiers())
        exclusive = modifiers not in (Qt.CTRL, Qt.SHIFT)
        if self._model.toggle(index, exclusive, set_to=set_to):
            self.tags_marked.emit(self.search_string)

    def conditional_clear(self, search_string):
        if search_string != self.search_string:
            self.clear()

    def context_menu_handler(self,
                             action=None,
                             category=None,
                             key=None,
                             index=None,
                             search_state=None):
        if not action:
            return
        try:
            if action == 'set_icon':
                try:
                    path = choose_files(self,
                                        'choose_category_icon',
                                        _('Change Icon for: %s') % key,
                                        filters=[
                                            ('Images',
                                             ['png', 'gif', 'jpg', 'jpeg'])
                                        ],
                                        all_files=False,
                                        select_only_single_file=True)
                    if path:
                        path = path[0]
                        p = QIcon(path).pixmap(QSize(128, 128))
                        d = os.path.join(config_dir, 'tb_icons')
                        if not os.path.exists(d):
                            os.makedirs(d)
                        with open(
                                os.path.join(
                                    d, 'icon_' +
                                    sanitize_file_name_unicode(key) + '.png'),
                                'wb') as f:
                            f.write(pixmap_to_data(p, format='PNG'))
                            path = os.path.basename(f.name)
                        self._model.set_custom_category_icon(
                            key, unicode(path))
                        self.recount()
                except:
                    import traceback
                    traceback.print_exc()
                return
            if action == 'clear_icon':
                self._model.set_custom_category_icon(key, None)
                self.recount()
                return

            if action == 'edit_item':
                self.edit(index)
                return
            if action == 'delete_item':
                self.tag_item_delete.emit(key, index.id, index.original_name)
                return
            if action == 'open_editor':
                self.tags_list_edit.emit(category, key)
                return
            if action == 'manage_categories':
                self.edit_user_category.emit(category)
                return
            if action == 'search':
                self._toggle(index, set_to=search_state)
                return
            if action == 'add_to_category':
                tag = index.tag
                if len(index.children) > 0:
                    for c in index.all_children():
                        self.add_item_to_user_cat.emit(category,
                                                       c.tag.original_name,
                                                       c.tag.category)
                self.add_item_to_user_cat.emit(category, tag.original_name,
                                               tag.category)
                return
            if action == 'add_subcategory':
                self.add_subcategory.emit(key)
                return
            if action == 'search_category':
                self._toggle(index, set_to=search_state)
                return
            if action == 'delete_user_category':
                self.delete_user_category.emit(key)
                return
            if action == 'delete_search':
                saved_searches().delete(key)
                self.rebuild_saved_searches.emit()
                return
            if action == 'delete_item_from_user_category':
                tag = index.tag
                if len(index.children) > 0:
                    for c in index.children:
                        self.del_item_from_user_cat.emit(
                            key, c.tag.original_name, c.tag.category)
                self.del_item_from_user_cat.emit(key, tag.original_name,
                                                 tag.category)
                return
            if action == 'manage_searches':
                self.saved_search_edit.emit(category)
                return
            if action == 'edit_author_sort':
                self.author_sort_edit.emit(self, index, True, False)
                return
            if action == 'edit_author_link':
                self.author_sort_edit.emit(self, index, False, True)
                return

            reset_filter_categories = True
            if action == 'hide':
                self.hidden_categories.add(category)
            elif action == 'show':
                self.hidden_categories.discard(category)
            elif action == 'categorization':
                changed = self.collapse_model != category
                self._model.collapse_model = category
                if changed:
                    reset_filter_categories = False
                    gprefs['tags_browser_partition_method'] = category
            elif action == 'defaults':
                self.hidden_categories.clear()
            self.db.prefs.set('tag_browser_hidden_categories',
                              list(self.hidden_categories))
            if reset_filter_categories:
                self._model.set_categories_filter(None)
            self._model.rebuild_node_tree()
        except:
            return

    def show_context_menu(self, point):
        def display_name(tag):
            if tag.category == 'search':
                n = tag.name
                if len(n) > 45:
                    n = n[:45] + '...'
                return "'" + n + "'"
            return tag.name

        index = self.indexAt(point)
        self.context_menu = QMenu(self)

        if index.isValid():
            item = index.data(Qt.UserRole).toPyObject()
            tag = None

            if item.type == TagTreeItem.TAG:
                tag_item = item
                tag = item.tag
                while item.type != TagTreeItem.CATEGORY:
                    item = item.parent

            if item.type == TagTreeItem.CATEGORY:
                if not item.category_key.startswith('@'):
                    while item.parent != self._model.root_item:
                        item = item.parent
                category = unicode(item.name.toString())
                key = item.category_key
                # Verify that we are working with a field that we know something about
                if key not in self.db.field_metadata:
                    return True

                # Did the user click on a leaf node?
                if tag:
                    # If the user right-clicked on an editable item, then offer
                    # the possibility of renaming that item.
                    if tag.is_editable:
                        # Add the 'rename' items
                        self.context_menu.addAction(
                            self.rename_icon,
                            _('Rename %s') % display_name(tag),
                            partial(self.context_menu_handler,
                                    action='edit_item',
                                    index=index))
                        if key in ('tags', 'series', 'publisher') or \
                                self._model.db.field_metadata.is_custom_field(key):
                            self.context_menu.addAction(
                                self.delete_icon,
                                _('Delete %s') % display_name(tag),
                                partial(self.context_menu_handler,
                                        action='delete_item',
                                        key=key,
                                        index=tag))
                        if key == 'authors':
                            self.context_menu.addAction(
                                _('Edit sort for %s') % display_name(tag),
                                partial(self.context_menu_handler,
                                        action='edit_author_sort',
                                        index=tag.id))
                            self.context_menu.addAction(
                                _('Edit link for %s') % display_name(tag),
                                partial(self.context_menu_handler,
                                        action='edit_author_link',
                                        index=tag.id))

                        # is_editable is also overloaded to mean 'can be added
                        # to a user category'
                        m = self.context_menu.addMenu(
                            self.user_category_icon,
                            _('Add %s to user category') % display_name(tag))
                        nt = self.model().category_node_tree

                        def add_node_tree(tree_dict, m, path):
                            p = path[:]
                            for k in sorted(tree_dict.keys(), key=sort_key):
                                p.append(k)
                                n = k[1:] if k.startswith('@') else k
                                m.addAction(
                                    self.user_category_icon, n,
                                    partial(self.context_menu_handler,
                                            'add_to_category',
                                            category='.'.join(p),
                                            index=tag_item))
                                if len(tree_dict[k]):
                                    tm = m.addMenu(self.user_category_icon,
                                                   _('Children of %s') % n)
                                    add_node_tree(tree_dict[k], tm, p)
                                p.pop()

                        add_node_tree(nt, m, [])
                    elif key == 'search' and tag.is_searchable:
                        self.context_menu.addAction(
                            self.rename_icon,
                            _('Rename %s') % display_name(tag),
                            partial(self.context_menu_handler,
                                    action='edit_item',
                                    index=index))
                        self.context_menu.addAction(
                            self.delete_icon,
                            _('Delete search %s') % display_name(tag),
                            partial(self.context_menu_handler,
                                    action='delete_search',
                                    key=tag.original_name))
                    if key.startswith('@') and not item.is_gst:
                        self.context_menu.addAction(
                            self.user_category_icon,
                            _('Remove %(item)s from category %(cat)s') %
                            dict(item=display_name(tag), cat=item.py_name),
                            partial(self.context_menu_handler,
                                    action='delete_item_from_user_category',
                                    key=key,
                                    index=tag_item))
                    if tag.is_searchable:
                        # Add the search for value items. All leaf nodes are searchable
                        self.context_menu.addAction(
                            self.search_icon,
                            _('Search for %s') % display_name(tag),
                            partial(
                                self.context_menu_handler,
                                action='search',
                                search_state=TAG_SEARCH_STATES['mark_plus'],
                                index=index))
                        self.context_menu.addAction(
                            self.search_icon,
                            _('Search for everything but %s') %
                            display_name(tag),
                            partial(
                                self.context_menu_handler,
                                action='search',
                                search_state=TAG_SEARCH_STATES['mark_minus'],
                                index=index))
                    self.context_menu.addSeparator()
                elif key.startswith('@') and not item.is_gst:
                    if item.can_be_edited:
                        self.context_menu.addAction(
                            self.rename_icon,
                            _('Rename %s') % item.py_name,
                            partial(self.context_menu_handler,
                                    action='edit_item',
                                    index=index))
                    self.context_menu.addAction(
                        self.user_category_icon,
                        _('Add sub-category to %s') % item.py_name,
                        partial(self.context_menu_handler,
                                action='add_subcategory',
                                key=key))
                    self.context_menu.addAction(
                        self.delete_icon,
                        _('Delete user category %s') % item.py_name,
                        partial(self.context_menu_handler,
                                action='delete_user_category',
                                key=key))
                    self.context_menu.addSeparator()
                # Hide/Show/Restore categories
                self.context_menu.addAction(
                    _('Hide category %s') % category,
                    partial(self.context_menu_handler,
                            action='hide',
                            category=key))
                if self.hidden_categories:
                    m = self.context_menu.addMenu(_('Show category'))
                    for col in sorted(self.hidden_categories,
                                      key=lambda x: sort_key(
                                          self.db.field_metadata[x]['name'])):
                        m.addAction(
                            self.db.field_metadata[col]['name'],
                            partial(self.context_menu_handler,
                                    action='show',
                                    category=col))

                # search by category. Some categories are not searchable, such
                # as search and news
                if item.tag.is_searchable:
                    self.context_menu.addAction(
                        self.search_icon,
                        _('Search for books in category %s') % category,
                        partial(self.context_menu_handler,
                                action='search_category',
                                index=self._model.createIndex(
                                    item.row(), 0, item),
                                search_state=TAG_SEARCH_STATES['mark_plus']))
                    self.context_menu.addAction(
                        self.search_icon,
                        _('Search for books not in category %s') % category,
                        partial(self.context_menu_handler,
                                action='search_category',
                                index=self._model.createIndex(
                                    item.row(), 0, item),
                                search_state=TAG_SEARCH_STATES['mark_minus']))
                # Offer specific editors for tags/series/publishers/saved searches
                self.context_menu.addSeparator()
                if key in ['tags', 'publisher', 'series'] or \
                            (self.db.field_metadata[key]['is_custom'] and
                             self.db.field_metadata[key]['datatype'] != 'composite'):
                    self.context_menu.addAction(
                        _('Manage %s') % category,
                        partial(self.context_menu_handler,
                                action='open_editor',
                                category=tag.original_name if tag else None,
                                key=key))
                elif key == 'authors':
                    self.context_menu.addAction(
                        _('Manage %s') % category,
                        partial(self.context_menu_handler,
                                action='edit_author_sort'))
                elif key == 'search':
                    self.context_menu.addAction(
                        _('Manage Saved Searches'),
                        partial(self.context_menu_handler,
                                action='manage_searches',
                                category=tag.name if tag else None))

                self.context_menu.addSeparator()
                self.context_menu.addAction(
                    _('Change category icon'),
                    partial(self.context_menu_handler,
                            action='set_icon',
                            key=key))
                self.context_menu.addAction(
                    _('Restore default icon'),
                    partial(self.context_menu_handler,
                            action='clear_icon',
                            key=key))

                # Always show the user categories editor
                self.context_menu.addSeparator()
                if key.startswith('@') and \
                        key[1:] in self.db.prefs.get('user_categories', {}).keys():
                    self.context_menu.addAction(
                        _('Manage User Categories'),
                        partial(self.context_menu_handler,
                                action='manage_categories',
                                category=key[1:]))
                else:
                    self.context_menu.addAction(
                        _('Manage User Categories'),
                        partial(self.context_menu_handler,
                                action='manage_categories',
                                category=None))

        if self.hidden_categories:
            if not self.context_menu.isEmpty():
                self.context_menu.addSeparator()
            self.context_menu.addAction(
                _('Show all categories'),
                partial(self.context_menu_handler, action='defaults'))

        m = self.context_menu.addMenu(_('Change sub-categorization scheme'))
        da = m.addAction(
            _('Disable'),
            partial(self.context_menu_handler,
                    action='categorization',
                    category='disable'))
        fla = m.addAction(
            _('By first letter'),
            partial(self.context_menu_handler,
                    action='categorization',
                    category='first letter'))
        pa = m.addAction(
            _('Partition'),
            partial(self.context_menu_handler,
                    action='categorization',
                    category='partition'))
        if self.collapse_model == 'disable':
            da.setCheckable(True)
            da.setChecked(True)
        elif self.collapse_model == 'first letter':
            fla.setCheckable(True)
            fla.setChecked(True)
        else:
            pa.setCheckable(True)
            pa.setChecked(True)

        if config['sort_tags_by'] != "name":
            fla.setEnabled(False)
            m.hovered.connect(self.collapse_menu_hovered)
            fla.setToolTip(
                _('First letter is usable only when sorting by name'))
            # Apparently one cannot set a tooltip to empty, so use a star and
            # deal with it in the hover method
            da.setToolTip('*')
            pa.setToolTip('*')

        if not self.context_menu.isEmpty():
            self.context_menu.popup(self.mapToGlobal(point))
        return True

    def collapse_menu_hovered(self, action):
        tip = action.toolTip()
        if tip == '*':
            tip = ''
        QToolTip.showText(QCursor.pos(), tip)

    def dragMoveEvent(self, event):
        QTreeView.dragMoveEvent(self, event)
        self.setDropIndicatorShown(False)
        index = self.indexAt(event.pos())
        if not index.isValid():
            return
        src_is_tb = event.mimeData().hasFormat(
            'application/calibre+from_tag_browser')
        item = index.data(Qt.UserRole).toPyObject()
        if item.type == TagTreeItem.ROOT:
            return
        flags = self._model.flags(index)
        if item.type == TagTreeItem.TAG and flags & Qt.ItemIsDropEnabled:
            self.setDropIndicatorShown(not src_is_tb)
            return
        if item.type == TagTreeItem.CATEGORY and not item.is_gst:
            fm_dest = self.db.metadata_for_field(item.category_key)
            if fm_dest['kind'] == 'user':
                if src_is_tb:
                    if event.dropAction() == Qt.MoveAction:
                        data = str(event.mimeData().data(
                            'application/calibre+from_tag_browser'))
                        src = cPickle.loads(data)
                        for s in src:
                            if s[0] == TagTreeItem.TAG and \
                                    (not s[1].startswith('@') or s[2]):
                                return
                    self.setDropIndicatorShown(True)
                    return
                md = event.mimeData()
                if hasattr(md, 'column_name'):
                    fm_src = self.db.metadata_for_field(md.column_name)
                    if md.column_name in ['authors', 'publisher', 'series'] or \
                            (fm_src['is_custom'] and (
                             (fm_src['datatype'] in ['series', 'text', 'enumeration'] and
                              not fm_src['is_multiple']) or
                             (fm_src['datatype'] == 'composite' and
                              fm_src['display'].get('make_category', False)))):
                        self.setDropIndicatorShown(True)

    def clear(self):
        if self.model():
            self.model().clear_state()

    def is_visible(self, idx):
        item = idx.data(Qt.UserRole).toPyObject()
        if getattr(item, 'type', None) == TagTreeItem.TAG:
            idx = idx.parent()
        return self.isExpanded(idx)

    def recount(self, *args):
        '''
        Rebuild the category tree, expand any categories that were expanded,
        reset the search states, and reselect the current node.
        '''
        if self.disable_recounting or not self.pane_is_visible:
            return
        self.refresh_signal_processed = True
        ci = self.currentIndex()
        if not ci.isValid():
            ci = self.indexAt(QPoint(10, 10))
        path = self.model().path_for_index(ci) if self.is_visible(ci) else None
        expanded_categories, state_map = self.get_state()
        self._model.rebuild_node_tree(state_map=state_map)
        self.blockSignals(True)
        for category in expanded_categories:
            idx = self._model.index_for_category(category)
            if idx is not None and idx.isValid():
                self.expand(idx)
        self.show_item_at_path(path)
        self.blockSignals(False)

    def show_item_at_path(self,
                          path,
                          box=False,
                          position=QTreeView.PositionAtCenter):
        '''
        Scroll the browser and open categories to show the item referenced by
        path. If possible, the item is placed in the center. If box=True, a
        box is drawn around the item.
        '''
        if path:
            self.show_item_at_index(self._model.index_for_path(path),
                                    box=box,
                                    position=position)

    def expand_parent(self, idx):
        # Needed otherwise Qt sometimes segfaults if the node is buried in a
        # collapsed, off screen hierarchy. To be safe, we expand from the
        # outermost in
        p = self._model.parent(idx)
        if p.isValid():
            self.expand_parent(p)
        self.expand(idx)

    def show_item_at_index(self,
                           idx,
                           box=False,
                           position=QTreeView.PositionAtCenter):
        if idx.isValid() and idx.data(
                Qt.UserRole).toPyObject() is not self._model.root_item:
            self.expand_parent(idx)
            self.setCurrentIndex(idx)
            self.scrollTo(idx, position)
            if box:
                self._model.set_boxed(idx)

    def item_expanded(self, idx):
        '''
        Called by the expanded signal
        '''
        self.setCurrentIndex(idx)
class Ui_DnaSequenceEditor(PM_DockWidget):
    """
    The Ui_DnaSequenceEditor class defines UI elements for the Sequence Editor
    object. The sequence editor is usually visible while in while editing
    a DnaStrand.
    
    It is a DockWidget that is docked at the bottom of the MainWindow.
    """
    _title = "Sequence Editor"
    _groupBoxCount = 0
    _lastGroupBox = None

    def __init__(self, win):
        """
        Constructor for the Ui_DnaSequenceEditor 
        @param win: The parentWidget (MainWindow) for the sequence editor 
        """

        self.win = win
        # Should parentWidget for a docwidget always be win?
        #Not necessary but most likely it will be the case.
        parentWidget = win

        _superclass.__init__(self, parentWidget, title=self._title)

        #A flag used to restore the state of the Reports dock widget
        #(which can be accessed through View  >  Reports) see self.show() and
        #self.closeEvent() for more details.
        self._reportsDockWidget_closed_in_show_method = False
        self.setFixedHeight(90)
        return

    def show(self):
        """
        Shows the sequence editor. While doing this, it also closes the reports
        dock widget (if visible) the state of the reports dockwidget will be
        restored when the sequence editor is closed. 
        @see:self.closeEvent()
        """
        self._reportsDockWidget_closed_in_show_method = False
        #hide the history widget first
        #(It will be shown back during self.close)
        #The history widget is hidden or shown only when both
        # 'View > Full Screen' and View > Semi Full Screen actions
        # are *unchecked*
        #Thus show or close methods won't do anything to history widget
        # if either of the above mentioned actions is checked.
        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self.win.reportsDockWidget.isVisible():
                self.win.reportsDockWidget.close()
                self._reportsDockWidget_closed_in_show_method = True

        _superclass.show(self)
        return

    def closeEvent(self, event):
        """
        Overrides close event. Makes sure that the visible state of the reports
        widgetis restored when the sequence editor is closed. 
        @see: self.show()
        """
        _superclass.closeEvent(self, event)

        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self._reportsDockWidget_closed_in_show_method:
                self.win.viewReportsAction.setChecked(True)
                self._reportsDockWidget_closed_in_show_method = False
        return

    def _loadWidgets(self):
        """
        Overrides PM.PM_DockWidget._loadWidgets. Loads the widget in this
        dockwidget.
        """
        self._loadMenuWidgets()
        self._loadTextEditWidget()
        return

    def _loadMenuWidgets(self):
        """
        Load the various menu widgets (e.g. Open, save sequence options, 
        Find and replace widgets etc. 
        """
        #Note: Find and replace widgets might be moved to their own class.

        self.loadSequenceButton = PM_ToolButton(
            self, iconPath="ui/actions/Properties Manager/Open.png")

        self.saveSequenceButton = PM_ToolButton(
            self,
            iconPath="ui/actions/Properties Manager/Save_Strand_Sequence.png")

        self.loadSequenceButton.setAutoRaise(True)
        self.saveSequenceButton.setAutoRaise(True)

        # Only supporting 5' to 3' direction until bug 2956 is fixed.
        # Mark 2008-12-19
        editDirectionChoices = ["5' to 3'"]  # , "3' to 5'"]
        self.baseDirectionChoiceComboBox = \
            PM_ComboBox( self,
                         choices = editDirectionChoices,
                         index     = 0,
                         spanWidth = False )

        #Find and replace widgets --
        self.findLineEdit = \
            PM_LineEdit( self,
                         label        = "",
                         spanWidth    = False)
        self.findLineEdit.setMaximumWidth(60)


        self.replaceLineEdit = \
            PM_LineEdit( self,
                         label        = "",
                         spanWidth    = False)
        self.replaceLineEdit.setMaximumWidth(60)

        self.findOptionsToolButton = PM_ToolButton(self)
        self.findOptionsToolButton.setMaximumWidth(12)
        self.findOptionsToolButton.setAutoRaise(True)

        self.findOptionsToolButton.setPopupMode(QToolButton.MenuButtonPopup)

        self._setFindOptionsToolButtonMenu()

        self.findNextToolButton = PM_ToolButton(
            self, iconPath="ui/actions/Properties Manager/Find_Next.png")
        self.findNextToolButton.setAutoRaise(True)

        self.findPreviousToolButton = PM_ToolButton(
            self, iconPath="ui/actions/Properties Manager/Find_Previous.png")
        self.findPreviousToolButton.setAutoRaise(True)

        self.replacePushButton = PM_PushButton(self, text="Replace")

        self.warningSign = QLabel(self)
        self.warningSign.setPixmap(
            getpixmap('ui/actions/Properties Manager/Warning.png'))
        self.warningSign.hide()

        self.phraseNotFoundLabel = QLabel(self)
        self.phraseNotFoundLabel.setText("Sequence Not Found")
        self.phraseNotFoundLabel.hide()

        # NOTE: Following needs cleanup in the PM_WidgetRow/ PM_WidgetGrid
        # but this explanation is sufficient  until thats done --

        # When the widget type starts with the word 'PM_' , the
        # PM_WidgetRow treats it as a well defined widget and thus doesn't try
        # to create a QWidget object (or its subclasses)
        # This is the reason why qLabels such as self.warningSign and
        # self.phraseNotFoundLabel  are defined as PM_Labels and not 'QLabels'
        # If they were defined as 'QLabel'(s) then PM_WidgetRow would have
        # recreated the label. Since we want to show/hide the above mentioned
        # labels (and if they were recreated as mentioned above),
        # we would have needed to define  those something like this:
        # self.phraseNotFoundLabel = widgetRow._widgetList[-2]
        #Cleanup in PM_widgetGrid could be to check if the widget starts with
        #'Q'  instead of 'PM_'

        #Widgets to include in the widget row.
        widgetList = [('PM_ToolButton', self.loadSequenceButton, 0),
                      ('PM_ToolButton', self.saveSequenceButton, 1),
                      ('QLabel', "     Sequence direction:", 2),
                      ('PM_ComboBox', self.baseDirectionChoiceComboBox, 3),
                      ('QLabel', "     Find:", 4),
                      ('PM_LineEdit', self.findLineEdit, 5),
                      ('PM_ToolButton', self.findOptionsToolButton, 6),
                      ('PM_ToolButton', self.findPreviousToolButton, 7),
                      ('PM_ToolButton', self.findNextToolButton, 8),
                      ('QLabel', "     Replace:", 9),
                      ('PM_TextEdit', self.replaceLineEdit, 10),
                      ('PM_PushButton', self.replacePushButton, 11),
                      ('PM_Label', self.warningSign, 12),
                      ('PM_Label', self.phraseNotFoundLabel, 13),
                      ('QSpacerItem', 5, 5, 14)]

        widgetRow = PM_WidgetRow(self,
                                 title='',
                                 widgetList=widgetList,
                                 label="",
                                 spanWidth=True)
        return

    def _loadTextEditWidget(self):
        """
        Load the SequenceTexteditWidgets.         
        """
        self.sequenceTextEdit = \
            PM_TextEdit( self,
                         label = " Sequence: ",
                         spanWidth = False,
                         permit_enter_keystroke = False)
        self.sequenceTextEdit.setCursorWidth(2)
        self.sequenceTextEdit.setWordWrapMode(QTextOption.WrapAnywhere)
        self.sequenceTextEdit.setFixedHeight(20)

        #The StrandSequence 'Mate' it is a read only etxtedit that shows
        #the complementary strand sequence.
        self.sequenceTextEdit_mate = \
            PM_TextEdit(self,
                        label = "",
                        spanWidth = False,
                        permit_enter_keystroke = False
                        )
        palette = getPalette(None, QPalette.Base,
                             sequenceEditStrandMateBaseColor)
        self.sequenceTextEdit_mate.setPalette(palette)
        self.sequenceTextEdit_mate.setFixedHeight(20)
        self.sequenceTextEdit_mate.setReadOnly(True)
        self.sequenceTextEdit_mate.setWordWrapMode(QTextOption.WrapAnywhere)

        #Important to make sure that the horizontal and vertical scrollbars
        #for these text edits are never displayed.
        for textEdit in (self.sequenceTextEdit, self.sequenceTextEdit_mate):
            textEdit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
            textEdit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        return

    def _getFindLineEditStyleSheet(self):
        """
        Return the style sheet for the findLineEdit. This sets the following 
        properties only:
         - background-color

        This style is set whenever the searchStrig can't be found (sets
        a light red color background to the lineedit when this happens)   

        @return: The line edit style sheet.
        @rtype:  str

        """
        styleSheet = "QLineEdit {"\
                   "background-color: rgb(255, 102, 102)"\
                   "}"
        #Not used:
        #  background-color: rgb(217, 255, 216)\

        return styleSheet

    def _setFindOptionsToolButtonMenu(self):
        """
        Sets the menu for the findOptionstoolbutton that appears a small 
        menu button next to the findLineEdit.
        """
        self.findOptionsMenu = QMenu(self.findOptionsToolButton)

        self.caseSensitiveFindAction = QAction(self.findOptionsToolButton)
        self.caseSensitiveFindAction.setText('Match Case')
        self.caseSensitiveFindAction.setCheckable(True)
        self.caseSensitiveFindAction.setChecked(False)

        self.findOptionsMenu.addAction(self.caseSensitiveFindAction)
        self.findOptionsMenu.addSeparator()

        self.findOptionsToolButton.setMenu(self.findOptionsMenu)
        return

    def _addToolTipText(self):
        """
            What's Tool Tip text for widgets in this Property Manager.  
            """
        from ne1_ui.ToolTipText_for_PropertyManagers import ToolTip_DnaSequenceEditor
        ToolTip_DnaSequenceEditor(self)
        return

    def _addWhatsThisText(self):
        """
            What's This text for widgets in this Property Manager.  

            """
        from ne1_ui.WhatsThisText_for_PropertyManagers import whatsThis_DnaSequenceEditor
        whatsThis_DnaSequenceEditor(self)
        return
    def show_context_menu(self, point):
        item = self.itemAt(point)
        if item is None or item in set(self.categories.itervalues()):
            return
        m = QMenu(self)
        sel = self.selectedItems()
        num = len(sel)
        container = current_container()
        ci = self.currentItem()
        if ci is not None:
            cn = unicode(ci.data(0, NAME_ROLE).toString())
            mt = unicode(ci.data(0, MIME_ROLE).toString())
            cat = unicode(ci.data(0, CATEGORY_ROLE).toString())
            n = elided_text(cn.rpartition('/')[-1])
            m.addAction(QIcon(I('save.png')),
                        _('Export %s') % n, partial(self.export, cn))
            if cn not in container.names_that_must_not_be_changed and cn not in container.names_that_must_not_be_removed and mt not in OEB_FONTS:
                m.addAction(
                    _('Replace %s with file...') % n,
                    partial(self.replace, cn))
            m.addSeparator()

            m.addAction(QIcon(I('modified.png')),
                        _('&Rename %s') % n, self.edit_current_item)
            if is_raster_image(mt):
                m.addAction(QIcon(I('default_cover.png')),
                            _('Mark %s as cover image') % n,
                            partial(self.mark_as_cover, cn))
            elif current_container(
            ).SUPPORTS_TITLEPAGES and mt in OEB_DOCS and cat == 'text':
                m.addAction(QIcon(I('default_cover.png')),
                            _('Mark %s as cover page') % n,
                            partial(self.mark_as_titlepage, cn))
            m.addSeparator()

        if num > 0:
            m.addSeparator()
            if num > 1:
                m.addAction(QIcon(I('modified.png')),
                            _('&Bulk rename selected files'),
                            self.request_bulk_rename)
            m.addAction(QIcon(I('trash.png')),
                        _('&Delete the %d selected file(s)') % num,
                        self.request_delete)
            m.addSeparator()

        selected_map = defaultdict(list)
        for item in sel:
            selected_map[unicode(item.data(
                0, CATEGORY_ROLE).toString())].append(
                    unicode(item.data(0, NAME_ROLE).toString()))

        for items in selected_map.itervalues():
            items.sort(key=self.index_of_name)

        if selected_map['text']:
            m.addAction(QIcon(I('format-text-color.png')),
                        _('Link &stylesheets...'),
                        partial(self.link_stylesheets, selected_map['text']))

        if len(selected_map['text']) > 1:
            m.addAction(
                QIcon(I('merge.png')), _('&Merge selected text files'),
                partial(self.start_merge, 'text', selected_map['text']))
        if len(selected_map['styles']) > 1:
            m.addAction(
                QIcon(I('merge.png')), _('&Merge selected style files'),
                partial(self.start_merge, 'styles', selected_map['styles']))

        if len(list(m.actions())) > 0:
            m.popup(self.mapToGlobal(point))
Exemple #25
0
class BooksView(QTableView): # {{{

    files_dropped = pyqtSignal(object)
    add_column_signal = pyqtSignal()

    def viewportEvent(self, event):
        if (event.type() == event.ToolTip and not gprefs['book_list_tooltips']):
            return False
        return QTableView.viewportEvent(self, event)

    def __init__(self, parent, modelcls=BooksModel, use_edit_metadata_dialog=True):
        QTableView.__init__(self, parent)

        if not tweaks['horizontal_scrolling_per_column']:
            self.setHorizontalScrollMode(self.ScrollPerPixel)

        self.setEditTriggers(self.EditKeyPressed)
        if tweaks['doubleclick_on_library_view'] == 'edit_cell':
            self.setEditTriggers(self.DoubleClicked|self.editTriggers())
        elif tweaks['doubleclick_on_library_view'] == 'open_viewer':
            self.setEditTriggers(self.SelectedClicked|self.editTriggers())
            self.doubleClicked.connect(parent.iactions['View'].view_triggered)
        elif tweaks['doubleclick_on_library_view'] == 'edit_metadata':
            # Must not enable single-click to edit, or the field will remain
            # open in edit mode underneath the edit metadata dialog
            if use_edit_metadata_dialog:
                self.doubleClicked.connect(
                        partial(parent.iactions['Edit Metadata'].edit_metadata,
                                checked=False))
            else:
                self.setEditTriggers(self.DoubleClicked|self.editTriggers())

        self.drag_allowed = True
        self.setDragEnabled(True)
        self.setDragDropOverwriteMode(False)
        self.setDragDropMode(self.DragDrop)
        self.drag_start_pos = None
        self.setAlternatingRowColors(True)
        self.setSelectionBehavior(self.SelectRows)
        self.setShowGrid(False)
        self.setWordWrap(False)

        self.rating_delegate = RatingDelegate(self)
        self.timestamp_delegate = DateDelegate(self)
        self.pubdate_delegate = PubDateDelegate(self)
        self.last_modified_delegate = DateDelegate(self,
                tweak_name='gui_last_modified_display_format')
        self.languages_delegate = LanguagesDelegate(self)
        self.tags_delegate = CompleteDelegate(self, ',', 'all_tag_names')
        self.authors_delegate = CompleteDelegate(self, '&', 'all_author_names', True)
        self.cc_names_delegate = CompleteDelegate(self, '&', 'all_custom', True)
        self.series_delegate = TextDelegate(self)
        self.publisher_delegate = TextDelegate(self)
        self.text_delegate = TextDelegate(self)
        self.cc_text_delegate = CcTextDelegate(self)
        self.cc_enum_delegate = CcEnumDelegate(self)
        self.cc_bool_delegate = CcBoolDelegate(self)
        self.cc_comments_delegate = CcCommentsDelegate(self)
        self.cc_template_delegate = CcTemplateDelegate(self)
        self.cc_number_delegate = CcNumberDelegate(self)
        self.display_parent = parent
        self._model = modelcls(self)
        self.setModel(self._model)
        self.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.setSortingEnabled(True)
        self.selectionModel().currentRowChanged.connect(self._model.current_changed)
        self.preserve_state = partial(PreserveViewState, self)

        # {{{ Column Header setup
        self.can_add_columns = True
        self.was_restored = False
        self.column_header = self.horizontalHeader()
        self.column_header.setMovable(True)
        self.column_header.sectionMoved.connect(self.save_state)
        self.column_header.setContextMenuPolicy(Qt.CustomContextMenu)
        self.column_header.customContextMenuRequested.connect(self.show_column_header_context_menu)
        self.column_header.sectionResized.connect(self.column_resized, Qt.QueuedConnection)
        # }}}

        self._model.database_changed.connect(self.database_changed)
        hv = self.verticalHeader()
        hv.setClickable(True)
        hv.setCursor(Qt.PointingHandCursor)
        self.selected_ids = []
        self._model.about_to_be_sorted.connect(self.about_to_be_sorted)
        self._model.sorting_done.connect(self.sorting_done,
                type=Qt.QueuedConnection)

    # Column Header Context Menu {{{
    def column_header_context_handler(self, action=None, column=None):
        if not action or not column:
            return
        try:
            idx = self.column_map.index(column)
        except:
            return
        h = self.column_header

        if action == 'hide':
            h.setSectionHidden(idx, True)
        elif action == 'show':
            h.setSectionHidden(idx, False)
            if h.sectionSize(idx) < 3:
                sz = h.sectionSizeHint(idx)
                h.resizeSection(idx, sz)
        elif action == 'ascending':
            self.sortByColumn(idx, Qt.AscendingOrder)
        elif action == 'descending':
            self.sortByColumn(idx, Qt.DescendingOrder)
        elif action == 'defaults':
            self.apply_state(self.get_default_state())
        elif action == 'addcustcol':
            self.add_column_signal.emit()
        elif action.startswith('align_'):
            alignment = action.partition('_')[-1]
            self._model.change_alignment(column, alignment)

        self.save_state()

    def show_column_header_context_menu(self, pos):
        idx = self.column_header.logicalIndexAt(pos)
        if idx > -1 and idx < len(self.column_map):
            col = self.column_map[idx]
            name = unicode(self.model().headerData(idx, Qt.Horizontal,
                    Qt.DisplayRole).toString())
            self.column_header_context_menu = QMenu(self)
            if col != 'ondevice':
                self.column_header_context_menu.addAction(_('Hide column %s') %
                        name,
                    partial(self.column_header_context_handler, action='hide',
                        column=col))
            m = self.column_header_context_menu.addMenu(
                    _('Sort on %s')  % name)
            a = m.addAction(_('Ascending'),
                    partial(self.column_header_context_handler,
                        action='ascending', column=col))
            d = m.addAction(_('Descending'),
                    partial(self.column_header_context_handler,
                        action='descending', column=col))
            if self._model.sorted_on[0] == col:
                ac = a if self._model.sorted_on[1] else d
                ac.setCheckable(True)
                ac.setChecked(True)
            if col not in ('ondevice', 'inlibrary') and \
                    (not self.model().is_custom_column(col) or \
                    self.model().custom_columns[col]['datatype'] not in ('bool',
                        )):
                m = self.column_header_context_menu.addMenu(
                        _('Change text alignment for %s') % name)
                al = self._model.alignment_map.get(col, 'left')
                for x, t in (('left', _('Left')), ('right', _('Right')), ('center',
                    _('Center'))):
                        a = m.addAction(t,
                            partial(self.column_header_context_handler,
                            action='align_'+x, column=col))
                        if al == x:
                            a.setCheckable(True)
                            a.setChecked(True)



            hidden_cols = [self.column_map[i] for i in
                    range(self.column_header.count()) if
                    self.column_header.isSectionHidden(i)]
            try:
                hidden_cols.remove('ondevice')
            except:
                pass
            if hidden_cols:
                self.column_header_context_menu.addSeparator()
                m = self.column_header_context_menu.addMenu(_('Show column'))
                for col in hidden_cols:
                    hidx = self.column_map.index(col)
                    name = unicode(self.model().headerData(hidx, Qt.Horizontal,
                            Qt.DisplayRole).toString())
                    m.addAction(name,
                        partial(self.column_header_context_handler,
                        action='show', column=col))


            self.column_header_context_menu.addSeparator()
            self.column_header_context_menu.addAction(
                    _('Shrink column if it is too wide to fit'),
                    partial(self.resize_column_to_fit, column=self.column_map[idx]))
            self.column_header_context_menu.addAction(
                    _('Restore default layout'),
                    partial(self.column_header_context_handler,
                        action='defaults', column=col))

            if self.can_add_columns:
                self.column_header_context_menu.addAction(
                        QIcon(I('column.png')),
                        _('Add your own columns'),
                        partial(self.column_header_context_handler,
                            action='addcustcol', column=col))

            self.column_header_context_menu.popup(self.column_header.mapToGlobal(pos))
    # }}}

    # Sorting {{{
    def about_to_be_sorted(self, idc):
        selected_rows = [r.row() for r in self.selectionModel().selectedRows()]
        self.selected_ids = [idc(r) for r in selected_rows]

    def sorting_done(self, indexc):
        pos = self.horizontalScrollBar().value()
        self.select_rows(self.selected_ids, using_ids=True, change_current=True,
            scroll=True)
        self.selected_ids = []
        self.horizontalScrollBar().setValue(pos)

    def sort_by_named_field(self, field, order, reset=True):
        if field in self.column_map:
            idx = self.column_map.index(field)
            if order:
                self.sortByColumn(idx, Qt.AscendingOrder)
            else:
                self.sortByColumn(idx, Qt.DescendingOrder)
        else:
            self._model.sort_by_named_field(field, order, reset)

    def multisort(self, fields, reset=True, only_if_different=False):
        if len(fields) == 0:
            return
        sh = self.cleanup_sort_history(self._model.sort_history,
                                       ignore_column_map=True)
        if only_if_different and len(sh) >= len(fields):
            ret=True
            for i,t in enumerate(fields):
                if t[0] != sh[i][0]:
                    ret = False
                    break
            if ret:
                return

        for n,d in reversed(fields):
            if n in self._model.db.field_metadata.keys():
                sh.insert(0, (n, d))
        sh = self.cleanup_sort_history(sh, ignore_column_map=True)
        self._model.sort_history = [tuple(x) for x in sh]
        self._model.resort(reset=reset)
        col = fields[0][0]
        dir = Qt.AscendingOrder if fields[0][1] else Qt.DescendingOrder
        if col in self.column_map:
            col = self.column_map.index(col)
            hdrs = self.horizontalHeader()
            try:
                hdrs.setSortIndicator(col, dir)
            except:
                pass
    # }}}

    # Ondevice column {{{
    def set_ondevice_column_visibility(self):
        m  = self._model
        self.column_header.setSectionHidden(m.column_map.index('ondevice'),
                not m.device_connected)

    def set_device_connected(self, is_connected):
        self._model.set_device_connected(is_connected)
        self.set_ondevice_column_visibility()
    # }}}

    # Save/Restore State {{{
    def get_state(self):
        h = self.column_header
        cm = self.column_map
        state = {}
        state['hidden_columns'] = [cm[i] for i in  range(h.count())
                if h.isSectionHidden(i) and cm[i] != 'ondevice']
        state['last_modified_injected'] = True
        state['languages_injected'] = True
        state['sort_history'] = \
            self.cleanup_sort_history(self.model().sort_history)
        state['column_positions'] = {}
        state['column_sizes'] = {}
        state['column_alignment'] = self._model.alignment_map
        for i in range(h.count()):
            name = cm[i]
            state['column_positions'][name] = h.visualIndex(i)
            if name != 'ondevice':
                state['column_sizes'][name] = h.sectionSize(i)
        return state

    def write_state(self, state):
        db = getattr(self.model(), 'db', None)
        name = unicode(self.objectName())
        if name and db is not None:
            db.prefs.set(name + ' books view state', state)

    def save_state(self):
        # Only save if we have been initialized (set_database called)
        if len(self.column_map) > 0 and self.was_restored:
            state = self.get_state()
            self.write_state(state)

    def cleanup_sort_history(self, sort_history, ignore_column_map=False):
        history = []
        for col, order in sort_history:
            if not isinstance(order, bool):
                continue
            if col == 'date':
                col = 'timestamp'
            if ignore_column_map or col in self.column_map:
                if (not history or history[-1][0] != col):
                    history.append([col, order])
        return history

    def apply_sort_history(self, saved_history, max_sort_levels=3):
        if not saved_history:
            return
        for col, order in reversed(self.cleanup_sort_history(
                saved_history)[:max_sort_levels]):
            self.sortByColumn(self.column_map.index(col),
                              Qt.AscendingOrder if order else Qt.DescendingOrder)

    def apply_state(self, state, max_sort_levels=3):
        h = self.column_header
        cmap = {}
        hidden = state.get('hidden_columns', [])
        for i, c in enumerate(self.column_map):
            cmap[c] = i
            if c != 'ondevice':
                h.setSectionHidden(i, c in hidden)

        positions = state.get('column_positions', {})
        pmap = {}
        for col, pos in positions.items():
            if col in cmap:
                pmap[pos] = col
        for pos in sorted(pmap.keys()):
            col = pmap[pos]
            idx = cmap[col]
            current_pos = h.visualIndex(idx)
            if current_pos != pos:
                h.moveSection(current_pos, pos)

        sizes = state.get('column_sizes', {})
        for col, size in sizes.items():
            if col in cmap:
                sz = sizes[col]
                if sz < 3:
                    sz = h.sectionSizeHint(cmap[col])
                h.resizeSection(cmap[col], sz)

        self.apply_sort_history(state.get('sort_history', None),
                max_sort_levels=max_sort_levels)

        for col, alignment in state.get('column_alignment', {}).items():
            self._model.change_alignment(col, alignment)

        for i in range(h.count()):
            if not h.isSectionHidden(i) and h.sectionSize(i) < 3:
                sz = h.sectionSizeHint(i)
                h.resizeSection(i, sz)

    def get_default_state(self):
        old_state = {
                'hidden_columns': ['last_modified', 'languages'],
                'sort_history':[DEFAULT_SORT],
                'column_positions': {},
                'column_sizes': {},
                'column_alignment': {
                    'size':'center',
                    'timestamp':'center',
                    'pubdate':'center'},
                'last_modified_injected': True,
                'languages_injected': True,
                }
        h = self.column_header
        cm = self.column_map
        for i in range(h.count()):
            name = cm[i]
            old_state['column_positions'][name] = i
            if name != 'ondevice':
                old_state['column_sizes'][name] = \
                    min(350, max(self.sizeHintForColumn(i),
                        h.sectionSizeHint(i)))
                if name in ('timestamp', 'last_modified'):
                    old_state['column_sizes'][name] += 12
        return old_state

    def get_old_state(self):
        ans = None
        name = unicode(self.objectName())
        if name:
            name += ' books view state'
            db = getattr(self.model(), 'db', None)
            if db is not None:
                ans = db.prefs.get(name, None)
                if ans is None:
                    ans = gprefs.get(name, None)
                    try:
                        del gprefs[name]
                    except:
                        pass
                    if ans is not None:
                        db.prefs[name] = ans
                else:
                    injected = False
                    if not ans.get('last_modified_injected', False):
                        injected = True
                        ans['last_modified_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'last_modified' not in hc:
                            hc.append('last_modified')
                    if not ans.get('languages_injected', False):
                        injected = True
                        ans['languages_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'languages' not in hc:
                            hc.append('languages')
                    if injected:
                        db.prefs[name] = ans
        return ans


    def restore_state(self):
        old_state = self.get_old_state()
        if old_state is None:
            old_state = self.get_default_state()
        max_levels = 3

        if tweaks['sort_columns_at_startup'] is not None:
            sh = []
            try:
                for c,d in tweaks['sort_columns_at_startup']:
                    if not isinstance(d, bool):
                        d = True if d == 0 else False
                    sh.append((c, d))
            except:
                # Ignore invalid tweak values as users seem to often get them
                # wrong
                import traceback
                traceback.print_exc()
            old_state['sort_history'] = sh
            max_levels = max(3, len(sh))

        self.column_header.blockSignals(True)
        self.apply_state(old_state, max_sort_levels=max_levels)
        self.column_header.blockSignals(False)

        # Resize all rows to have the correct height
        if self.model().rowCount(QModelIndex()) > 0:
            self.resizeRowToContents(0)
            self.verticalHeader().setDefaultSectionSize(self.rowHeight(0))

        self.was_restored = True

    def resize_column_to_fit(self, column):
        col = self.column_map.index(column)
        self.column_resized(col, self.columnWidth(col), self.columnWidth(col))

    def column_resized(self, col, old_size, new_size):
        # arbitrary: scroll bar + header + some
        max_width = self.width() - (self.verticalScrollBar().width() +
                                    self.verticalHeader().width() + 10)
        if max_width < 200:
            max_width = 200
        if new_size > max_width:
            self.column_header.blockSignals(True)
            self.setColumnWidth(col, max_width)
            self.column_header.blockSignals(False)

    # }}}

    # Initialization/Delegate Setup {{{

    def set_database(self, db):
        self.save_state()
        self._model.set_database(db)
        self.tags_delegate.set_database(db)
        self.cc_names_delegate.set_database(db)
        self.authors_delegate.set_database(db)
        self.series_delegate.set_auto_complete_function(db.all_series)
        self.publisher_delegate.set_auto_complete_function(db.all_publishers)

    def database_changed(self, db):
        for i in range(self.model().columnCount(None)):
            if self.itemDelegateForColumn(i) in (self.rating_delegate,
                    self.timestamp_delegate, self.pubdate_delegate,
                    self.last_modified_delegate, self.languages_delegate):
                self.setItemDelegateForColumn(i, self.itemDelegate())

        cm = self.column_map

        for colhead in cm:
            if self._model.is_custom_column(colhead):
                cc = self._model.custom_columns[colhead]
                if cc['datatype'] == 'datetime':
                    delegate = CcDateDelegate(self)
                    delegate.set_format(cc['display'].get('date_format',''))
                    self.setItemDelegateForColumn(cm.index(colhead), delegate)
                elif cc['datatype'] == 'comments':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_comments_delegate)
                elif cc['datatype'] == 'text':
                    if cc['is_multiple']:
                        if cc['display'].get('is_names', False):
                            self.setItemDelegateForColumn(cm.index(colhead),
                                                          self.cc_names_delegate)
                        else:
                            self.setItemDelegateForColumn(cm.index(colhead),
                                                          self.tags_delegate)
                    else:
                        self.setItemDelegateForColumn(cm.index(colhead), self.cc_text_delegate)
                elif cc['datatype'] == 'series':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_text_delegate)
                elif cc['datatype'] in ('int', 'float'):
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_number_delegate)
                elif cc['datatype'] == 'bool':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_bool_delegate)
                elif cc['datatype'] == 'rating':
                    self.setItemDelegateForColumn(cm.index(colhead), self.rating_delegate)
                elif cc['datatype'] == 'composite':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_template_delegate)
                elif cc['datatype'] == 'enumeration':
                    self.setItemDelegateForColumn(cm.index(colhead), self.cc_enum_delegate)
            else:
                dattr = colhead+'_delegate'
                delegate = colhead if hasattr(self, dattr) else 'text'
                self.setItemDelegateForColumn(cm.index(colhead), getattr(self,
                    delegate+'_delegate'))

        self.restore_state()
        self.set_ondevice_column_visibility()
        #}}}

    # Context Menu {{{
    def set_context_menu(self, menu, edit_collections_action):
        self.setContextMenuPolicy(Qt.DefaultContextMenu)
        self.context_menu = menu
        self.edit_collections_action = edit_collections_action

    def contextMenuEvent(self, event):
        self.context_menu.popup(event.globalPos())
        event.accept()
    # }}}

    # Drag 'n Drop {{{
    @classmethod
    def paths_from_event(cls, event):
        '''
        Accept a drop event and return a list of paths that can be read from
        and represent files with extensions.
        '''
        md = event.mimeData()
        if md.hasFormat('text/uri-list') and not \
                md.hasFormat('application/calibre+from_library'):
            urls = [unicode(u.toLocalFile()) for u in md.urls()]
            return [u for u in urls if os.path.splitext(u)[1] and
                    os.path.exists(u)]

    def drag_icon(self, cover, multiple):
        cover = cover.scaledToHeight(120, Qt.SmoothTransformation)
        if multiple:
            base_width = cover.width()
            base_height = cover.height()
            base = QImage(base_width+21, base_height+21,
                    QImage.Format_ARGB32_Premultiplied)
            base.fill(QColor(255, 255, 255, 0).rgba())
            p = QPainter(base)
            rect = QRect(20, 0, base_width, base_height)
            p.fillRect(rect, QColor('white'))
            p.drawRect(rect)
            rect.moveLeft(10)
            rect.moveTop(10)
            p.fillRect(rect, QColor('white'))
            p.drawRect(rect)
            rect.moveLeft(0)
            rect.moveTop(20)
            p.fillRect(rect, QColor('white'))
            p.save()
            p.setCompositionMode(p.CompositionMode_SourceAtop)
            p.drawImage(rect.topLeft(), cover)
            p.restore()
            p.drawRect(rect)
            p.end()
            cover = base
        return QPixmap.fromImage(cover)

    def drag_data(self):
        m = self.model()
        db = m.db
        rows = self.selectionModel().selectedRows()
        selected = list(map(m.id, rows))
        ids = ' '.join(map(str, selected))
        md = QMimeData()
        md.setData('application/calibre+from_library', ids)
        fmt = prefs['output_format']

        def url_for_id(i):
            try:
                ans = db.format_path(i, fmt, index_is_id=True)
            except:
                ans = None
            if ans is None:
                fmts = db.formats(i, index_is_id=True)
                if fmts:
                    fmts = fmts.split(',')
                else:
                    fmts = []
                for f in fmts:
                    try:
                        ans = db.format_path(i, f, index_is_id=True)
                    except:
                        ans = None
            if ans is None:
                ans = db.abspath(i, index_is_id=True)
            return QUrl.fromLocalFile(ans)

        md.setUrls([url_for_id(i) for i in selected])
        drag = QDrag(self)
        col = self.selectionModel().currentIndex().column()
        md.column_name = self.column_map[col]
        drag.setMimeData(md)
        cover = self.drag_icon(m.cover(self.currentIndex().row()),
                len(selected) > 1)
        drag.setHotSpot(QPoint(-15, -15))
        drag.setPixmap(cover)
        return drag

    def event_has_mods(self, event=None):
        mods = event.modifiers() if event is not None else \
                QApplication.keyboardModifiers()
        return mods & Qt.ControlModifier or mods & Qt.ShiftModifier

    def mousePressEvent(self, event):
        ep = event.pos()
        if self.indexAt(ep) in self.selectionModel().selectedIndexes() and \
                event.button() == Qt.LeftButton and not self.event_has_mods():
            self.drag_start_pos = ep
        return QTableView.mousePressEvent(self, event)

    def mouseMoveEvent(self, event):
        if not self.drag_allowed:
            return
        if self.drag_start_pos is None:
            return QTableView.mouseMoveEvent(self, event)

        if self.event_has_mods():
            self.drag_start_pos = None
            return

        if not (event.buttons() & Qt.LeftButton) or \
                (event.pos() - self.drag_start_pos).manhattanLength() \
                      < QApplication.startDragDistance():
            return

        index = self.indexAt(event.pos())
        if not index.isValid():
            return
        drag = self.drag_data()
        drag.exec_(Qt.CopyAction)
        self.drag_start_pos = None

    def dragEnterEvent(self, event):
        if int(event.possibleActions() & Qt.CopyAction) + \
           int(event.possibleActions() & Qt.MoveAction) == 0:
            return
        paths = self.paths_from_event(event)

        if paths:
            event.acceptProposedAction()

    def dragMoveEvent(self, event):
        event.acceptProposedAction()

    def dropEvent(self, event):
        paths = self.paths_from_event(event)
        event.setDropAction(Qt.CopyAction)
        event.accept()
        self.files_dropped.emit(paths)

    # }}}

    @property
    def column_map(self):
        return self._model.column_map

    def refresh_book_details(self):
        idx = self.currentIndex()
        if idx.isValid():
            self._model.current_changed(idx, idx)

    def scrollContentsBy(self, dx, dy):
        # Needed as Qt bug causes headerview to not always update when scrolling
        QTableView.scrollContentsBy(self, dx, dy)
        if dy != 0:
            self.column_header.update()

    def scroll_to_row(self, row):
        if row > -1:
            h = self.horizontalHeader()
            for i in range(h.count()):
                if not h.isSectionHidden(i) and h.sectionViewportPosition(i) >= 0:
                    self.scrollTo(self.model().index(row, i), self.PositionAtCenter)
                    break

    def set_current_row(self, row, select=True):
        if row > -1 and row < self.model().rowCount(QModelIndex()):
            h = self.horizontalHeader()
            logical_indices = list(range(h.count()))
            logical_indices = [x for x in logical_indices if not
                    h.isSectionHidden(x)]
            pairs = [(x, h.visualIndex(x)) for x in logical_indices if
                    h.visualIndex(x) > -1]
            if not pairs:
                pairs = [(0, 0)]
            pairs.sort(cmp=lambda x,y:cmp(x[1], y[1]))
            i = pairs[0][0]
            index = self.model().index(row, i)
            self.setCurrentIndex(index)
            if select:
                sm = self.selectionModel()
                sm.select(index, sm.ClearAndSelect|sm.Rows)

    def select_rows(self, identifiers, using_ids=True, change_current=True,
            scroll=True):
        '''
        Select rows identified by identifiers. identifiers can be a set of ids,
        row numbers or QModelIndexes.
        '''
        rows = set([x.row() if hasattr(x, 'row') else x for x in
            identifiers])
        if using_ids:
            rows = set([])
            identifiers = set(identifiers)
            m = self.model()
            for row in xrange(m.rowCount(QModelIndex())):
                if m.id(row) in identifiers:
                    rows.add(row)
        rows = list(sorted(rows))
        if rows:
            row = rows[0]
            if change_current:
                self.set_current_row(row, select=False)
            if scroll:
                self.scroll_to_row(row)
        sm = self.selectionModel()
        sel = QItemSelection()
        m = self.model()
        max_col = m.columnCount(QModelIndex()) - 1
        # Create a range based selector for each set of contiguous rows
        # as supplying selectors for each individual row causes very poor
        # performance if a large number of rows has to be selected.
        for k, g in itertools.groupby(enumerate(rows), lambda (i,x):i-x):
            group = list(map(operator.itemgetter(1), g))
            sel.merge(QItemSelection(m.index(min(group), 0),
                m.index(max(group), max_col)), sm.Select)
        sm.select(sel, sm.ClearAndSelect)
class Ui_ProteinSequenceEditor(PM_DockWidget):
    """
    The Ui_DnaSequenceEditor class defines UI elements for the Sequence Editor
    object. The sequence editor is usually visible while in DNA edit mode.
    It is a DockWidget that is doced at the bottom of the MainWindow
    """
    _title         =  "Sequence Editor"
    _groupBoxCount = 0
    _lastGroupBox = None

    def __init__(self, win):
        """
        Constructor for the Ui_DnaSequenceEditor 
        @param win: The parentWidget (MainWindow) for the sequence editor 
        """
        
        self.win = win
        # Should parentWidget for a docwidget always be win? 
        #Not necessary but most likely it will be the case.        
        parentWidget = win 
        
        _superclass.__init__(self, parentWidget, title = self._title)
        
        #A flag used to restore the state of the Reports dock widget 
        #(which can be accessed through View  >  Reports) see self.show() and
        #self.closeEvent() for more details. 
        self._reportsDockWidget_closed_in_show_method = False
        self.setFixedHeight(90)

    def show(self):
        """
        Shows the sequence editor. While doing this, it also closes the reports
        dock widget (if visible) the state of the reports dockwidget will be
        restored when the sequence editor is closed. 
        @see:self.closeEvent()
        """
        self._reportsDockWidget_closed_in_show_method = False
        
        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self.win.reportsDockWidget.isVisible():
                self.win.reportsDockWidget.close()
                self._reportsDockWidget_closed_in_show_method = True

        _superclass.show(self)  
        
    def closeEvent(self, event):
        """
        Overrides close event. Makes sure that the visible state of the reports
        widgetis restored when the sequence editor is closed. 
        @see: self.show()
        """
        _superclass.closeEvent(self, event)
       
        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self._reportsDockWidget_closed_in_show_method:
                self.win.viewReportsAction.setChecked(True) 
                self._reportsDockWidget_closed_in_show_method = False

    def _loadWidgets(self):
        """
        Overrides PM.PM_DockWidget._loadWidgets. Loads the widget in this
        dockwidget.
        """
        self._loadMenuWidgets()
        self._loadTextEditWidget()


    def _loadMenuWidgets(self):
        """
        Load the various menu widgets (e.g. Open, save sequence options, 
        Find and replace widgets etc. 
        """
        #Note: Find and replace widgets might be moved to their own class.

        self.loadSequenceButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Open.png")  

        self.saveSequenceButton = PM_ToolButton(
            self, 
            iconPath = "ui/actions/Properties Manager/Save_Strand_Sequence.png") 

        self.loadSequenceButton.setAutoRaise(True)
        self.saveSequenceButton.setAutoRaise(True)

        
        #Find and replace widgets --
        self.findLineEdit = \
            PM_LineEdit( self, 
                         label        = "",
                         spanWidth    = False)
        self.findLineEdit.setMaximumWidth(60)


        self.replaceLineEdit = \
            PM_LineEdit( self, 
                         label        = "",
                         spanWidth    = False)
        self.replaceLineEdit.setMaximumWidth(60)

        self.findOptionsToolButton = PM_ToolButton(self)
        self.findOptionsToolButton.setMaximumWidth(12)
        self.findOptionsToolButton.setAutoRaise(True)

        self.findOptionsToolButton.setPopupMode(QToolButton.MenuButtonPopup)

        self._setFindOptionsToolButtonMenu()

        self.findNextToolButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Find_Next.png")
        self.findNextToolButton.setAutoRaise(True)

        self.findPreviousToolButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Find_Previous.png")
        self.findPreviousToolButton.setAutoRaise(True)

        self.replacePushButton = PM_PushButton(self, text = "Replace")

        self.warningSign = QLabel(self)
        self.warningSign.setPixmap(
            getpixmap('ui/actions/Properties Manager/Warning.png'))
        self.warningSign.hide()

        self.phraseNotFoundLabel = QLabel(self)
        self.phraseNotFoundLabel.setText("Sequence Not Found")
        self.phraseNotFoundLabel.hide()

        

        #Widgets to include in the widget row. 
        widgetList = [('PM_ToolButton', self.loadSequenceButton, 0),
                      ('PM_ToolButton', self.saveSequenceButton, 1),
                      ('QLabel', "     Find:", 4),
                      ('PM_LineEdit', self.findLineEdit, 5),
                      ('PM_ToolButton', self.findOptionsToolButton, 6),
                      ('PM_ToolButton', self.findPreviousToolButton, 7),
                      ('PM_ToolButton', self.findNextToolButton, 8), 
                      ('QLabel', "     Replace:", 9),
                      ('PM_TextEdit', self.replaceLineEdit, 10), 
                      ('PM_PushButton', self.replacePushButton, 11),
                      ('PM_Label', self.warningSign, 12),
                      ('PM_Label', self.phraseNotFoundLabel, 13),
                      ('QSpacerItem', 5, 5, 14) ]

        widgetRow = PM_WidgetRow(self,
                                 title     = '',
                                 widgetList = widgetList,
                                 label = "",
                                 spanWidth = True )
        
        

    def _loadTextEditWidget(self):
        """
        Load the SequenceTexteditWidgets.         
        """        
        self.aaRulerTextEdit = \
            PM_TextEdit( self, 
                         label = "", 
                         spanWidth = False,
                         permit_enter_keystroke = False) 
        
        palette = getPalette(None, 
                             QPalette.Base, 
                             pmGrpBoxColor)
        self.aaRulerTextEdit.setPalette(palette)     
        self.aaRulerTextEdit.setWordWrapMode( QTextOption.WrapAnywhere )
        self.aaRulerTextEdit.setFixedHeight(20)
        self.aaRulerTextEdit.setReadOnly(True)
        
        self.sequenceTextEdit = \
            PM_TextEdit( self, 
                         label = " Sequence: ", 
                         spanWidth = False,
                         permit_enter_keystroke = False) 
        
        
        self.sequenceTextEdit.setCursorWidth(2)
        self.sequenceTextEdit.setWordWrapMode( QTextOption.WrapAnywhere )
        self.sequenceTextEdit.setFixedHeight(20)
        
        self.secStrucTextEdit = \
            PM_TextEdit( self, 
                         label = " Secondary structure: ", 
                         spanWidth = False,
                         permit_enter_keystroke = False) 
        
        palette = getPalette(None, 
                             QPalette.Base, 
                             sequenceEditStrandMateBaseColor)
        self.secStrucTextEdit.setPalette(palette)     
        self.secStrucTextEdit.setWordWrapMode( QTextOption.WrapAnywhere )
        self.secStrucTextEdit.setFixedHeight(20)
        self.secStrucTextEdit.setReadOnly(True)

        #Important to make sure that the horizontal and vertical scrollbars 
        #for these text edits are never displayed. 
        
        self.sequenceTextEdit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.sequenceTextEdit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.secStrucTextEdit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.secStrucTextEdit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.aaRulerTextEdit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.aaRulerTextEdit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)

    def _getFindLineEditStyleSheet(self):
        """
        Return the style sheet for the findLineEdit. This sets the following 
        properties only:
         - background-color

        This style is set whenever the searchStrig can't be found (sets
        a light red color background to the lineedit when this happens)   

        @return: The line edit style sheet.
        @rtype:  str

        """
        styleSheet = \
                   "QLineEdit {\
                   background-color: rgb(255, 102, 102)\
                   }"
        #Not used:
        #  background-color: rgb(217, 255, 216)\       

        return styleSheet

    def _setFindOptionsToolButtonMenu(self):
        """
        Sets the menu for the findOptionstoolbutton that appears a small 
        menu button next to the findLineEdit.
        """
        self.findOptionsMenu = QMenu(self.findOptionsToolButton)

        self.caseSensitiveFindAction = QAction(self.findOptionsToolButton)
        self.caseSensitiveFindAction.setText('Match Case')
        self.caseSensitiveFindAction.setCheckable(True)
        self.caseSensitiveFindAction.setChecked(False)

        self.findOptionsMenu.addAction(self.caseSensitiveFindAction)
        self.findOptionsMenu.addSeparator()

        self.findOptionsToolButton.setMenu(self.findOptionsMenu)

    def _addToolTipText(self):
        """
            What's Tool Tip text for widgets in this Property Manager.  
            """ 
        pass

    def _addWhatsThisText(self):
        """
            What's This text for widgets in this Property Manager.  

            """
        pass
Exemple #27
0
def makemenu_helper(widget, menu_spec, menu=None):
    """
    Make and return a reusable or one-time-use (at caller's option)
    popup menu whose structure is specified by menu_spec,
    which is a list of menu item specifiers, each of which is either None
    (for a separator) or a tuple of the form (menu text, callable or submenu,
    option1, option2, ...) with 0 or more options (described below).
       A submenu can be either another menu_spec list, or a QMenu object
    (but in the latter case the menu text is ignored -- maybe it comes
    from that QMenu object somehow -- not sure if this was different in Qt3).
    In either case it is the 2nd menu-item-tuple element, in place of the callable.
       Otherwise the callable must satisfy the python 'callable' predicate,
    and is executed if the menu item is chosen, wrapped inside another function
    which handles Undo checkpointing and Undo-command-name setting.
       The options in a menu item tuple can be zero or more (in any order,
    duplicates allowed) of the following:
    'disabled' -- the menu item should be disabled;
    'checked' -- the menu item will be checked;
    None -- this option is legal but ignored (but the callable must still satisfy
    the python predicate "callable"; constants.noop might be useful for that case).
       The Qt3 version also supported tuple-options consisting of one of the words
    'iconset' and 'whatsThis' followed by an appropriate argument, but those have
    not yet been ported to Qt4 (except possibly for disabled menu items -- UNTESTED).
       Unrecognized options may or may not generate warnings, and are otherwise ignored.
    [###FIX that -- they always ought to print a warning to developers. Note that right
    now they do iff 'disabled' is one of the options and ATOM_DEBUG is set.]
       The 'widget' argument should be the Qt widget
    which is using this function to put up a menu.
       If the menu argument is provided, it should be a QMenu
    to which we'll add items; otherwise we create our own QMenu
    and add items to it.
    """
    from utilities.debug import print_compact_traceback
    import types
    if menu is None:
        menu = QMenu(widget)
        ## menu.show()
        #bruce 070514 removed menu.show() to fix a cosmetic and performance bug
        # (on Mac, possibly on other platforms too; probably unreported)
        # in which the debug menu first appears in screen center, slowly grows
        # to full size while remaining blank, then moves to its final position
        # and looks normal (causing a visual glitch, and a 2-3 second delay
        # in being able to use it). May fix similar issues with other menus.
        # If this causes harm for some menus or platforms, we can adapt it.
    # bruce 040909-16 moved this method from basicMode to GLPane,
    # leaving a delegator for it in basicMode.
    # (bruce was not the original author, but modified it)
    #menu = QMenu( widget)
    for m in menu_spec:
        try:  #bruce 050416 added try/except as debug code and for safety
            menutext = m and widget.trUtf8(m[0])
            if m and isinstance(m[1], QMenu):  #bruce 041010 added this case
                submenu = m[1]
                #menu.insertItem( menutext, submenu )
                menu.addMenu(submenu)  # how do I get menutext in there?
                # (similar code might work for QAction case too, not sure)
            elif m and isinstance(
                    m[1], types.ListType):  #bruce 041103 added this case
                submenu = QMenu(menutext, menu)
                submenu = makemenu_helper(
                    widget, m[1],
                    submenu)  # [this used to call widget.makemenu]
                menu.addMenu(submenu)
            elif m:
                assert callable(m[1]), \
                    "%r[1] needs to be a callable" % (m,) #bruce 041103
                # transform m[1] into a new callable that makes undo checkpoints and provides an undo command-name
                # [bruce 060324 for possible bugs in undo noticing cmenu items, and for the cmdnames]
                func = wrap_callable_for_undo(m[1], cmdname=m[0])
                # guess about cmdname, but it might be reasonable for A7 as long as we ensure weird characters won't confuse it
                import foundation.changes as changes
                changes.keep_forever(
                    func
                )  # THIS IS BAD (memory leak), but it's not a severe one, so ok for A7 [bruce 060324]
                # (note: the hard part about removing these when we no longer need them is knowing when to do that
                #  if the user ends up not selecting anything from the menu. Also, some callers make these
                #  menus for reuse multiple times, and for them we never want to deallocate func even when some
                #  menu command gets used. We could solve both of these by making the caller pass a place to keep these
                #  which it would deallocate someday or which would ensure only one per distinct kind of menu is kept. #e)
                if 'disabled' not in m[2:]:
                    act = QAction(widget)
                    act.setText(menutext)
                    if 'checked' in m[2:]:
                        act.setCheckable(True)
                        act.setChecked(True)
                    menu.addAction(act)
                    widget.connect(act, SIGNAL("activated()"), func)
                else:
                    # disabled case
                    # [why is this case done differently, in this Qt4 port?? -- bruce 070522 question]
                    insert_command_into_menu(menu,
                                             menutext,
                                             func,
                                             options=m[2:],
                                             raw_command=True)
            else:
                menu.addSeparator(
                )  #bruce 070522 bugfix -- before this, separators were placed lower down or dropped
                # so as not to come before disabled items, for unknown reasons.
                # (Speculation: maybe because insertSeparator was used, since addSeparator didn't work or wasn't noticed,
                #  and since disabled item were added by an older function (also for unknown reasons)?)
                pass
        except Exception, e:
            if isinstance(e, SystemExit):
                raise
            print_compact_traceback(
                "exception in makemenu_helper ignored, for %r:\n" % (m, ))
            #bruce 070522 restored this (was skipped in Qt4 port)
            pass  #e could add a fake menu item here as an error message
Exemple #28
0
class Scheduler(QObject):

    INTERVAL = 1  # minutes

    delete_old_news = pyqtSignal(object)
    start_recipe_fetch = pyqtSignal(object)

    def __init__(self, parent, db):
        QObject.__init__(self, parent)
        self.internet_connection_failed = False
        self._parent = parent
        self.no_internet_msg = _('Cannot download news as no internet connection '
                'is active')
        self.no_internet_dialog = d = error_dialog(self._parent,
                self.no_internet_msg, _('No internet connection'),
                show_copy_button=False)
        d.setModal(False)

        self.recipe_model = RecipeModel()
        self.db = db
        self.lock = QMutex(QMutex.Recursive)
        self.download_queue = set([])

        self.news_menu = QMenu()
        self.news_icon = QIcon(I('news.png'))
        self.scheduler_action = QAction(QIcon(I('scheduler.png')), _('Schedule news download'), self)
        self.news_menu.addAction(self.scheduler_action)
        self.scheduler_action.triggered[bool].connect(self.show_dialog)
        self.cac = QAction(QIcon(I('user_profile.png')), _('Add a custom news source'), self)
        self.cac.triggered[bool].connect(self.customize_feeds)
        self.news_menu.addAction(self.cac)
        self.news_menu.addSeparator()
        self.all_action = self.news_menu.addAction(
                _('Download all scheduled news sources'),
                self.download_all_scheduled)

        self.timer = QTimer(self)
        self.timer.start(int(self.INTERVAL * 60 * 1000))
        self.timer.timeout.connect(self.check)
        self.oldest = gconf['oldest_news']
        QTimer.singleShot(5 * 1000, self.oldest_check)

    def database_changed(self, db):
        self.db = db

    def oldest_check(self):
        if self.oldest > 0:
            delta = timedelta(days=self.oldest)
            try:
                ids = list(self.db.tags_older_than(_('News'),
                    delta, must_have_authors=['calibre']))
            except:
                # Happens if library is being switched
                ids = []
            if ids:
                if ids:
                    self.delete_old_news.emit(ids)
        QTimer.singleShot(60 * 60 * 1000, self.oldest_check)

    def show_dialog(self, *args):
        self.lock.lock()
        try:
            d = SchedulerDialog(self.recipe_model)
            d.download.connect(self.download_clicked)
            d.exec_()
            gconf['oldest_news'] = self.oldest = d.old_news.value()
            d.break_cycles()
        finally:
            self.lock.unlock()

    def customize_feeds(self, *args):
        from calibre.gui2.dialogs.user_profiles import UserProfiles
        d = UserProfiles(self._parent, self.recipe_model)
        d.exec_()
        d.break_cycles()

    def do_download(self, urn):
        self.lock.lock()
        try:
            account_info = self.recipe_model.get_account_info(urn)
            customize_info = self.recipe_model.get_customize_info(urn)
            recipe = self.recipe_model.recipe_from_urn(urn)
            un = pw = None
            if account_info is not None:
                un, pw = account_info
            add_title_tag, custom_tags, keep_issues = customize_info
            script = self.recipe_model.get_recipe(urn)
            pt = PersistentTemporaryFile('_builtin.recipe')
            pt.write(script)
            pt.close()
            arg = {
                    'username': un,
                    'password': pw,
                    'add_title_tag':add_title_tag,
                    'custom_tags':custom_tags,
                    'recipe':pt.name,
                    'title':recipe.get('title',''),
                    'urn':urn,
                    'keep_issues':keep_issues
                   }
            self.download_queue.add(urn)
            self.start_recipe_fetch.emit(arg)
        finally:
            self.lock.unlock()

    def recipe_downloaded(self, arg):
        self.lock.lock()
        try:
            self.recipe_model.update_last_downloaded(arg['urn'])
            self.download_queue.remove(arg['urn'])
        finally:
            self.lock.unlock()

    def recipe_download_failed(self, arg):
        self.lock.lock()
        try:
            self.recipe_model.update_last_downloaded(arg['urn'])
            self.download_queue.remove(arg['urn'])
        finally:
            self.lock.unlock()

    def download_clicked(self, urn):
        if urn is not None:
            return self.download(urn)
        for urn in self.recipe_model.scheduled_urns():
            if not self.download(urn):
                break

    def download_all_scheduled(self):
        self.download_clicked(None)

    def has_internet_connection(self):
        if not internet_connected():
            if not self.internet_connection_failed:
                self.internet_connection_failed = True
                if self._parent.is_minimized_to_tray:
                    self._parent.status_bar.show_message(self.no_internet_msg,
                            5000)
                elif not self.no_internet_dialog.isVisible():
                    self.no_internet_dialog.show()
            return False
        self.internet_connection_failed = False
        if self.no_internet_dialog.isVisible():
            self.no_internet_dialog.hide()
        return True

    def download(self, urn):
        self.lock.lock()
        if not self.has_internet_connection():
            return False
        doit = urn not in self.download_queue
        self.lock.unlock()
        if doit:
            self.do_download(urn)
        return True

    def check(self):
        recipes = self.recipe_model.get_to_be_downloaded_recipes()
        for urn in recipes:
            if not self.download(urn):
                # No internet connection, we will try again in a minute
                break
Exemple #29
0
class LocationManager(QObject):  # {{{

    locations_changed = pyqtSignal()
    unmount_device = pyqtSignal()
    location_selected = pyqtSignal(object)
    configure_device = pyqtSignal()
    update_device_metadata = pyqtSignal()

    def __init__(self, parent=None):
        QObject.__init__(self, parent)
        self.free = [-1, -1, -1]
        self.count = 0
        self.location_actions = QActionGroup(self)
        self.location_actions.setExclusive(True)
        self.current_location = 'library'
        self._mem = []
        self.tooltips = {}

        self.all_actions = []

        def ac(name, text, icon, tooltip):
            icon = QIcon(I(icon))
            ac = self.location_actions.addAction(icon, text)
            setattr(self, 'location_'+name, ac)
            ac.setAutoRepeat(False)
            ac.setCheckable(True)
            receiver = partial(self._location_selected, name)
            ac.triggered.connect(receiver)
            self.tooltips[name] = tooltip

            m = QMenu(parent)
            self._mem.append(m)
            a = m.addAction(icon, tooltip)
            a.triggered.connect(receiver)
            if name != 'library':
                self._mem.append(a)
                a = m.addAction(QIcon(I('eject.png')), _('Eject this device'))
                a.triggered.connect(self._eject_requested)
                self._mem.append(a)
                a = m.addAction(QIcon(I('config.png')), _('Configure this device'))
                a.triggered.connect(self._configure_requested)
                self._mem.append(a)
                a = m.addAction(QIcon(I('sync.png')), _('Update cached metadata on device'))
                a.triggered.connect(lambda x : self.update_device_metadata.emit())
                self._mem.append(a)

            else:
                ac.setToolTip(tooltip)
            ac.setMenu(m)
            ac.calibre_name = name

            self.all_actions.append(ac)
            return ac

        self.library_action = ac('library', _('Library'), 'lt.png',
                _('Show books in calibre library'))
        ac('main', _('Device'), 'reader.png',
                _('Show books in the main memory of the device'))
        ac('carda', _('Card A'), 'sd.png',
                _('Show books in storage card A'))
        ac('cardb', _('Card B'), 'sd.png',
                _('Show books in storage card B'))

    def set_switch_actions(self, quick_actions, rename_actions, delete_actions,
            switch_actions, choose_action):
        self.switch_menu = self.library_action.menu()
        if self.switch_menu:
            self.switch_menu.addSeparator()
        else:
            self.switch_menu = QMenu()

        self.switch_menu.addAction(choose_action)
        self.cs_menus = []
        for t, acs in [(_('Quick switch'), quick_actions),
                (_('Rename library'), rename_actions),
                (_('Delete library'), delete_actions)]:
            if acs:
                self.cs_menus.append(QMenu(t))
                for ac in acs:
                    self.cs_menus[-1].addAction(ac)
                self.switch_menu.addMenu(self.cs_menus[-1])
        self.switch_menu.addSeparator()
        for ac in switch_actions:
            self.switch_menu.addAction(ac)

        if self.switch_menu != self.library_action.menu():
            self.library_action.setMenu(self.switch_menu)

    def _location_selected(self, location, *args):
        if location != self.current_location and hasattr(self,
                'location_'+location):
            self.current_location = location
            self.location_selected.emit(location)
            getattr(self, 'location_'+location).setChecked(True)

    def _eject_requested(self, *args):
        self.unmount_device.emit()

    def _configure_requested(self):
        self.configure_device.emit()

    def update_devices(self, cp=(None, None), fs=[-1, -1, -1], icon=None):
        if icon is None:
            icon = I('reader.png')
        self.location_main.setIcon(QIcon(icon))
        had_device = self.has_device
        if cp is None:
            cp = (None, None)
        if isinstance(cp, (str, unicode)):
            cp = (cp, None)
        if len(fs) < 3:
            fs = list(fs) + [0]
        self.free[0] = fs[0]
        self.free[1] = fs[1]
        self.free[2] = fs[2]
        cpa, cpb = cp
        self.free[1] = fs[1] if fs[1] is not None and cpa is not None else -1
        self.free[2] = fs[2] if fs[2] is not None and cpb is not None else -1
        self.update_tooltips()
        if self.has_device != had_device:
            self.location_library.setChecked(True)
            self.locations_changed.emit()
            if not self.has_device:
                self.location_library.trigger()

    def update_tooltips(self):
        for i, loc in enumerate(('main', 'carda', 'cardb')):
            t = self.tooltips[loc]
            if self.free[i] > -1:
                t += u'\n\n%s '%human_readable(self.free[i]) + _('available')
            ac = getattr(self, 'location_'+loc)
            ac.setToolTip(t)
            ac.setWhatsThis(t)
            ac.setStatusTip(t)

    @property
    def has_device(self):
        return max(self.free) > -1

    @property
    def available_actions(self):
        ans = [self.location_library]
        for i, loc in enumerate(('main', 'carda', 'cardb')):
            if self.free[i] > -1:
                ans.append(getattr(self, 'location_'+loc))
        return ans
Exemple #30
0
    def show_context_menu(self, pos):
        m = QMenu(self)
        a = m.addAction
        c = self.editor.cursorForPosition(pos)
        origc = QTextCursor(c)
        r = origr = self.editor.syntax_range_for_cursor(c)
        if (r is None or not r.format.property(SPELL_PROPERTY).toBool()) and c.positionInBlock() > 0:
            c.setPosition(c.position() - 1)
            r = self.editor.syntax_range_for_cursor(c)

        if r is not None and r.format.property(SPELL_PROPERTY).toBool():
            word = self.editor.text_for_range(c.block(), r)
            locale = self.editor.spellcheck_locale_for_cursor(c)
            orig_pos = c.position()
            c.setPosition(orig_pos - utf16_length(word))
            found = False
            self.editor.setTextCursor(c)
            if self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False):
                found = True
                fc = self.editor.textCursor()
                if fc.position() < c.position():
                    self.editor.find_spell_word([word], locale.langcode, center_on_cursor=False)
            if found:
                suggestions = dictionaries.suggestions(word, locale)[:7]
                if suggestions:
                    for suggestion in suggestions:
                        ac = m.addAction(suggestion, partial(self.editor.simple_replace, suggestion))
                        f = ac.font()
                        f.setBold(True), ac.setFont(f)
                    m.addSeparator()
                m.addAction(actions['spell-next'])
                m.addAction(_('Ignore this word'), partial(self._nuke_word, None, word, locale))
                dics = dictionaries.active_user_dictionaries
                if len(dics) > 0:
                    if len(dics) == 1:
                        m.addAction(_('Add this word to the dictionary: {0}').format(dics[0].name), partial(
                            self._nuke_word, dics[0].name, word, locale))
                    else:
                        ac = m.addAction(_('Add this word to the dictionary'))
                        dmenu = QMenu(m)
                        ac.setMenu(dmenu)
                        for dic in dics:
                            dmenu.addAction(dic.name, partial(self._nuke_word, dic.name, word, locale))
                m.addSeparator()

        if origr is not None and origr.format.property(LINK_PROPERTY).toBool():
            href = self.editor.text_for_range(origc.block(), origr)
            m.addAction(_('Open %s') % href, partial(self.link_clicked.emit, href))

        if origr is not None and (origr.format.property(TAG_NAME_PROPERTY).toBool() or origr.format.property(CSS_PROPERTY).toBool()):
            word = self.editor.text_for_range(origc.block(), origr)
            item_type = 'tag_name' if origr.format.property(TAG_NAME_PROPERTY).toBool() else 'css_property'
            url = help_url(word, item_type, self.editor.highlighter.doc_name, extra_data=current_container().opf_version)
            if url is not None:
                m.addAction(_('Show help for: %s') % word, partial(open_url, url))

        for x in ('undo', 'redo'):
            a(actions['editor-%s' % x])
        m.addSeparator()
        for x in ('cut', 'copy', 'paste'):
            a(actions['editor-' + x])
        m.addSeparator()
        m.addAction(_('&Select all'), self.editor.select_all)
        m.addAction(actions['mark-selected-text'])
        if self.syntax == 'html':
            m.addAction(actions['multisplit'])
        m.exec_(self.editor.mapToGlobal(pos))
class Ui_DnaSequenceEditor(PM_DockWidget):
    """
    The Ui_DnaSequenceEditor class defines UI elements for the Sequence Editor
    object. The sequence editor is usually visible while in DNA edit mode.
    It is a DockWidget that is doced at the bottom of the MainWindow
    """
    _title         =  "Sequence Editor"
    _groupBoxCount = 0
    _lastGroupBox = None

    def __init__(self, win):
        """
        Constructor for the Ui_DnaSequenceEditor 
        @param win: The parentWidget (MainWindow) for the sequence editor 
        """
        
        self.win = win
        # Should parentWidget for a docwidget always be win? 
        #Not necessary but most likely it will be the case.        
        parentWidget = win 
        
        _superclass.__init__(self, parentWidget, title = self._title)
        
        #A flag used to restore the state of the Reports dock widget 
        #(which can be accessed through View  >  Reports) see self.show() and
        #self.closeEvent() for more details. 
        self._reportsDockWidget_closed_in_show_method = False
        self.setFixedHeight(90)

    def show(self):
        """
        Shows the sequence editor. While doing this, it also closes the reports
        dock widget (if visible) the state of the reports dockwidget will be
        restored when the sequence editor is closed. 
        @see:self.closeEvent()
        """
        self._reportsDockWidget_closed_in_show_method = False
        #hide the history widget first
        #(It will be shown back during self.close)
        #The history widget is hidden or shown only when both 
        # 'View > Full Screen' and View > Semi Full Screen actions 
        # are *unchecked*
        #Thus show or close methods won't do anything to history widget
        # if either of the above mentioned actions is checked.
        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self.win.reportsDockWidget.isVisible():
                self.win.reportsDockWidget.close()
                self._reportsDockWidget_closed_in_show_method = True

        _superclass.show(self)  
        
    def closeEvent(self, event):
        """
        Overrides close event. Makes sure that the visible state of the reports
        widgetis restored when the sequence editor is closed. 
        @see: self.show()
        """
        _superclass.closeEvent(self, event)
       
        if self.win.viewFullScreenAction.isChecked() or \
           self.win.viewSemiFullScreenAction.isChecked():
            pass
        else:
            if self._reportsDockWidget_closed_in_show_method:
                self.win.viewReportsAction.setChecked(True) 
                self._reportsDockWidget_closed_in_show_method = False

    def _loadWidgets(self):
        """
        Overrides PM.PM_DockWidget._loadWidgets. Loads the widget in this
        dockwidget.
        """
        self._loadMenuWidgets()
        self._loadTextEditWidget()


    def _loadMenuWidgets(self):
        """
        Load the various menu widgets (e.g. Open, save sequence options, 
        Find and replace widgets etc. 
        """
        #Note: Find and replace widgets might be moved to their own class.

        self.loadSequenceButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Open.png")  

        self.saveSequenceButton = PM_ToolButton(
            self, 
            iconPath = "ui/actions/Properties Manager/Save_Strand_Sequence.png") 

        self.loadSequenceButton.setAutoRaise(True)
        self.saveSequenceButton.setAutoRaise(True)

        editDirectionChoices = ["5' to 3'", "3' to 5'"]
        self.baseDirectionChoiceComboBox = \
            PM_ComboBox( self,
                         choices = editDirectionChoices,
                         index     = 0, 
                         spanWidth = False )   

        #Find and replace widgets --
        self.findLineEdit = \
            PM_LineEdit( self, 
                         label        = "",
                         spanWidth    = False)
        self.findLineEdit.setMaximumWidth(60)


        self.replaceLineEdit = \
            PM_LineEdit( self, 
                         label        = "",
                         spanWidth    = False)
        self.replaceLineEdit.setMaximumWidth(60)

        self.findOptionsToolButton = PM_ToolButton(self)
        self.findOptionsToolButton.setMaximumWidth(12)
        self.findOptionsToolButton.setAutoRaise(True)

        self.findOptionsToolButton.setPopupMode(QToolButton.MenuButtonPopup)

        self._setFindOptionsToolButtonMenu()

        self.findNextToolButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Find_Next.png")
        self.findNextToolButton.setAutoRaise(True)

        self.findPreviousToolButton = PM_ToolButton(
            self,
            iconPath = "ui/actions/Properties Manager/Find_Previous.png")
        self.findPreviousToolButton.setAutoRaise(True)

        self.replacePushButton = PM_PushButton(self, text = "Replace")

        self.warningSign = QLabel(self)
        self.warningSign.setPixmap(
            getpixmap('ui/actions/Properties Manager/Warning.png'))
        self.warningSign.hide()

        self.phraseNotFoundLabel = QLabel(self)
        self.phraseNotFoundLabel.setText("Sequence Not Found")
        self.phraseNotFoundLabel.hide()

        # NOTE: Following needs cleanup in the PM_WidgetRow/ PM_WidgetGrid
        # but this explanation is sufficient  until thats done -- 

        # When the widget type starts with the word 'PM_' , the 
        # PM_WidgetRow treats it as a well defined widget and thus doesn't try
        # to create a QWidget object (or its subclasses)
        # This is the reason why qLabels such as self.warningSign and
        # self.phraseNotFoundLabel  are defined as PM_Labels and not 'QLabels'
        # If they were defined as 'QLabel'(s) then PM_WidgetRow would have
        # recreated the label. Since we want to show/hide the above mentioned 
        # labels (and if they were recreated as mentioned above), 
        # we would have needed to define  those something like this:
        # self.phraseNotFoundLabel = widgetRow._widgetList[-2] 
        #Cleanup in PM_widgetGrid could be to check if the widget starts with 
        #'Q'  instead of 'PM_' 


        #Widgets to include in the widget row. 
        widgetList = [('PM_ToolButton', self.loadSequenceButton, 0),
                      ('PM_ToolButton', self.saveSequenceButton, 1),
                      ('QLabel', "     Sequence direction:", 2),
                      ('PM_ComboBox',  self.baseDirectionChoiceComboBox , 3),
                      ('QLabel', "     Find:", 4),
                      ('PM_LineEdit', self.findLineEdit, 5),
                      ('PM_ToolButton', self.findOptionsToolButton, 6),
                      ('PM_ToolButton', self.findPreviousToolButton, 7),
                      ('PM_ToolButton', self.findNextToolButton, 8), 
                      ('QLabel', "     Replace:", 9),
                      ('PM_TextEdit', self.replaceLineEdit, 10), 
                      ('PM_PushButton', self.replacePushButton, 11),
                      ('PM_Label', self.warningSign, 12),
                      ('PM_Label', self.phraseNotFoundLabel, 13),
                      ('QSpacerItem', 5, 5, 14) ]

        widgetRow = PM_WidgetRow(self,
                                 title     = '',
                                 widgetList = widgetList,
                                 label = "",
                                 spanWidth = True )

    def _loadTextEditWidget(self):
        """
        Load the SequenceTexteditWidgets.         
        """        
        self.sequenceTextEdit = \
            PM_TextEdit( self, 
                         label = " Sequence: ", 
                         spanWidth = False,
                         permit_enter_keystroke = False)        
        self.sequenceTextEdit.setCursorWidth(2)
        self.sequenceTextEdit.setWordWrapMode( QTextOption.WrapAnywhere )
        self.sequenceTextEdit.setFixedHeight(20)

        #The StrandSequence 'Mate' it is a read only etxtedit that shows
        #the complementary strand sequence.         
        self.sequenceTextEdit_mate = \
            PM_TextEdit(self, 
                        label = "", 
                        spanWidth = False,
                        permit_enter_keystroke = False
                        )        
        palette = getPalette(None, 
                             QPalette.Base, 
                             sequenceEditStrandMateBaseColor)
        self.sequenceTextEdit_mate.setPalette(palette)        
        self.sequenceTextEdit_mate.setFixedHeight(20)
        self.sequenceTextEdit_mate.setReadOnly(True)
        self.sequenceTextEdit_mate.setWordWrapMode(QTextOption.WrapAnywhere)

        #Important to make sure that the horizontal and vertical scrollbars 
        #for these text edits are never displayed. 
        for textEdit in (self.sequenceTextEdit, self.sequenceTextEdit_mate):
            textEdit.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
            textEdit.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)


    def _getFindLineEditStyleSheet(self):
        """
        Return the style sheet for the findLineEdit. This sets the following 
        properties only:
         - background-color

        This style is set whenever the searchStrig can't be found (sets
        a light red color background to the lineedit when this happens)   

        @return: The line edit style sheet.
        @rtype:  str

        """
        styleSheet = \
                   "QLineEdit {\
                   background-color: rgb(255, 102, 102)\
                   }"
        #Not used:
        #  background-color: rgb(217, 255, 216)\       

        return styleSheet

    def _setFindOptionsToolButtonMenu(self):
        """
        Sets the menu for the findOptionstoolbutton that appears a small 
        menu button next to the findLineEdit.
        """
        self.findOptionsMenu = QMenu(self.findOptionsToolButton)

        self.caseSensitiveFindAction = QAction(self.findOptionsToolButton)
        self.caseSensitiveFindAction.setText('Match Case')
        self.caseSensitiveFindAction.setCheckable(True)
        self.caseSensitiveFindAction.setChecked(False)

        self.findOptionsMenu.addAction(self.caseSensitiveFindAction)
        self.findOptionsMenu.addSeparator()

        self.findOptionsToolButton.setMenu(self.findOptionsMenu)

    def _addToolTipText(self):
        """
            What's Tool Tip text for widgets in this Property Manager.  
            """ 
        from ne1_ui.ToolTipText_for_PropertyManagers import ToolTip_SequenceEditor
        ToolTip_SequenceEditor(self)

    def _addWhatsThisText(self):
        """
            What's This text for widgets in this Property Manager.  

            """
        from ne1_ui.WhatsThisText_for_PropertyManagers import whatsThis_SequenceEditor
        whatsThis_SequenceEditor(self)
Exemple #32
0
    def contextMenuEvent(self, event):
        """ Creates two context menus:
            1. no modifier -> spellchecker & clear emnu
            2. ctrl modifier -> Text change & Insert symbol
        """
        contextMenu = self.createStandardContextMenu()
        spellMenu = True

        if (QApplication.keyboardModifiers() & Qt.ControlModifier):
            spellMenu = False

        self.clearAction = QtGui.QAction(self.tr("Clear"), contextMenu)
        contextMenu.addSeparator()
        contextMenu.addAction(self.clearAction)
        if not len(self.toPlainText()):
            self.clearAction.setEnabled(False)
        QtCore.QObject.connect(self.clearAction,
                               QtCore.SIGNAL("triggered()"), self.clear)
        if not spellMenu:
            textOpsMenu = QMenu(self.tr("Text change..."))

            removeEOLAction = QtGui.QAction(self.tr("Join lines"),
                                            textOpsMenu, )
            textOpsMenu.addAction(removeEOLAction)
            QtCore.QObject.connect(removeEOLAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.removeEOL)

            textOpsMenu.addSeparator()

            toUppercaseAction = QtGui.QAction(self.tr("to UPPERCASE"),
                                              textOpsMenu)
            textOpsMenu.addAction(toUppercaseAction)
            QtCore.QObject.connect(toUppercaseAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.toUppercase)

            toLowercaseAction = QtGui.QAction(self.tr("to lowercase"),
                                              textOpsMenu)
            textOpsMenu.addAction(toLowercaseAction)
            QtCore.QObject.connect(toLowercaseAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.toLowercase)

            toTitleAction = QtGui.QAction(self.tr("to Title"), textOpsMenu)
            textOpsMenu.addAction(toTitleAction)
            QtCore.QObject.connect(toTitleAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.toTitlecase)

            toCapsAction = QtGui.QAction(self.tr("to Capitalize"), textOpsMenu)
            textOpsMenu.addAction(toCapsAction)
            QtCore.QObject.connect(toCapsAction,
                                   QtCore.SIGNAL("triggered()"), self.toCaps)

            contextMenu.insertSeparator(contextMenu.actions()[0])
            contextMenu.insertMenu(contextMenu.actions()[0], textOpsMenu)

            insertSymbolMenu = QMenu(self.tr("Insert symbol..."))
            settings_symbols = settings.get('editor:symbols')
            if settings_symbols:
                self.symbols = settings_symbols.split('\n')
            for symbol in self.symbols:
                action = SpellAction(symbol, insertSymbolMenu)
                action.correct.connect( self.insertSymbol)
                insertSymbolMenu.addAction(action)

            contextMenu.insertMenu(contextMenu.actions()[0], insertSymbolMenu)

        if not self.textCursor().hasSelection() and spellMenu:
            # Select the word under the cursor for spellchecker
            cursor = self.textCursor()
            cursor.select(QTextCursor.WordUnderCursor)

            self.setTextCursor(cursor)
            text = unicode(self.textCursor().selectedText())

            #TODO: put to configuration list of ignored starting/ending chars
            # remove u"„" from selection
            if text.startswith(u"„") or text.startswith(u"“"):
                text = text[1:]
                selectionEnd = cursor.selectionEnd()
                cursor.setPosition(cursor.position() - len(text))
                cursor.setPosition(selectionEnd, QTextCursor.KeepAnchor)
                self.setTextCursor(cursor)
            # remove u"”" from selection
            if text.endswith(u"”") or text.startswith(u"“"):
                selectionEnd = cursor.selectionEnd()
                cursor.setPosition(cursor.position() - len(text))
                cursor.setPosition(selectionEnd - 1, QTextCursor.KeepAnchor)
                text = text[:-1]
                self.setTextCursor(cursor)

            # Check if the selected word is misspelled and offer spelling
            # suggestions if it is.
            if self.textCursor().hasSelection():
                if not self.dict.check(text):
                    spell_menu = QMenu(self.tr("Spelling Suggestions"))
                    addWordAcction = QAction(self.tr('Add word...'),
                                             spell_menu)
                    QtCore.QObject.connect(addWordAcction,
                               QtCore.SIGNAL("triggered()"), self.addWord)
                    #addWordAcction.triggered.connect(self.addWord)
                    spell_menu.addAction(addWordAcction)
                    for word in self.dict.suggest(text):
                        action = SpellAction(word, spell_menu)
                        action.correct.connect(self.changeText)
                        spell_menu.addAction(action)
                    contextMenu.insertSeparator(contextMenu.actions()[1])
                    contextMenu.insertMenu(contextMenu.actions()[0],
                                            spell_menu)
                    # Only add the spelling suggests to the menu if there are
                    # suggestions.
                    if len(spell_menu.actions()) != 1:
                        spell_menu.insertSeparator(spell_menu.actions()[1])


        contextMenu.exec_(event.globalPos())
        event.accept()
Exemple #33
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    def contextMenuEvent(self, event):
        """ Creates two context menus:
            1. no modifier -> spellchecker & clear emnu
            2. ctrl modifier -> Text change & Insert symbol
        """
        contextMenu = self.createStandardContextMenu()
        spellMenu = True

        if (QApplication.keyboardModifiers() & Qt.ControlModifier):
            spellMenu = False

        self.clearAction = QtGui.QAction(self.tr("Clear"), contextMenu)
        contextMenu.addSeparator()
        contextMenu.addAction(self.clearAction)
        if not len(self.toPlainText()):
            self.clearAction.setEnabled(False)
        QtCore.QObject.connect(self.clearAction, QtCore.SIGNAL("triggered()"),
                               self.clear)
        if not spellMenu:
            textOpsMenu = QMenu(self.tr("Text change..."))

            removeEOLAction = QtGui.QAction(
                self.tr("Join lines"),
                textOpsMenu,
            )
            textOpsMenu.addAction(removeEOLAction)
            QtCore.QObject.connect(removeEOLAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.removeEOL)

            textOpsMenu.addSeparator()

            toUppercaseAction = QtGui.QAction(self.tr("to UPPERCASE"),
                                              textOpsMenu)
            textOpsMenu.addAction(toUppercaseAction)
            QtCore.QObject.connect(toUppercaseAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.toUppercase)

            toLowercaseAction = QtGui.QAction(self.tr("to lowercase"),
                                              textOpsMenu)
            textOpsMenu.addAction(toLowercaseAction)
            QtCore.QObject.connect(toLowercaseAction,
                                   QtCore.SIGNAL("triggered()"),
                                   self.toLowercase)

            toTitleAction = QtGui.QAction(self.tr("to Title"), textOpsMenu)
            textOpsMenu.addAction(toTitleAction)
            QtCore.QObject.connect(toTitleAction, QtCore.SIGNAL("triggered()"),
                                   self.toTitlecase)

            toCapsAction = QtGui.QAction(self.tr("to Capitalize"), textOpsMenu)
            textOpsMenu.addAction(toCapsAction)
            QtCore.QObject.connect(toCapsAction, QtCore.SIGNAL("triggered()"),
                                   self.toCaps)

            contextMenu.insertSeparator(contextMenu.actions()[0])
            contextMenu.insertMenu(contextMenu.actions()[0], textOpsMenu)

            insertSymbolMenu = QMenu(self.tr("Insert symbol..."))
            settings_symbols = settings.get('editor:symbols')
            if settings_symbols:
                self.symbols = settings_symbols.split('\n')
            for symbol in self.symbols:
                action = SpellAction(symbol, insertSymbolMenu)
                action.correct.connect(self.insertSymbol)
                insertSymbolMenu.addAction(action)

            contextMenu.insertMenu(contextMenu.actions()[0], insertSymbolMenu)

        if not self.textCursor().hasSelection() and spellMenu:
            # Select the word under the cursor for spellchecker
            cursor = self.textCursor()
            cursor.select(QTextCursor.WordUnderCursor)

            self.setTextCursor(cursor)
            text = unicode(self.textCursor().selectedText())

            #TODO: put to configuration list of ignored starting/ending chars
            # remove u"„" from selection
            if text.startswith(u"„") or text.startswith(u"“"):
                text = text[1:]
                selectionEnd = cursor.selectionEnd()
                cursor.setPosition(cursor.position() - len(text))
                cursor.setPosition(selectionEnd, QTextCursor.KeepAnchor)
                self.setTextCursor(cursor)
            # remove u"”" from selection
            if text.endswith(u"”") or text.startswith(u"“"):
                selectionEnd = cursor.selectionEnd()
                cursor.setPosition(cursor.position() - len(text))
                cursor.setPosition(selectionEnd - 1, QTextCursor.KeepAnchor)
                text = text[:-1]
                self.setTextCursor(cursor)

            # Check if the selected word is misspelled and offer spelling
            # suggestions if it is.
            if self.textCursor().hasSelection():
                if not self.dict.check(text):
                    spell_menu = QMenu(self.tr("Spelling Suggestions"))
                    addWordAcction = QAction(self.tr('Add word...'),
                                             spell_menu)
                    QtCore.QObject.connect(addWordAcction,
                                           QtCore.SIGNAL("triggered()"),
                                           self.addWord)
                    #addWordAcction.triggered.connect(self.addWord)
                    spell_menu.addAction(addWordAcction)
                    for word in self.dict.suggest(text):
                        action = SpellAction(word, spell_menu)
                        action.correct.connect(self.changeText)
                        spell_menu.addAction(action)
                    contextMenu.insertSeparator(contextMenu.actions()[1])
                    contextMenu.insertMenu(contextMenu.actions()[0],
                                           spell_menu)
                    # Only add the spelling suggests to the menu if there are
                    # suggestions.
                    if len(spell_menu.actions()) != 1:
                        spell_menu.insertSeparator(spell_menu.actions()[1])

        contextMenu.exec_(event.globalPos())
        event.accept()
Exemple #34
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    def show_context_menu(self, pos):
        m = QMenu(self)
        a = m.addAction
        c = self.editor.cursorForPosition(pos)
        fmt = self.editor.syntax_format_for_cursor(c)
        spell = fmt.property(
            SPELL_PROPERTY).toPyObject() if fmt is not None else None
        if spell is not None:
            word, locale = spell
            orig_pos = c.position()
            c.setPosition(orig_pos - utf16_length(word))
            found = False
            self.editor.setTextCursor(c)
            if self.editor.find_spell_word([word],
                                           locale.langcode,
                                           center_on_cursor=False):
                found = True
                fc = self.editor.textCursor()
                if fc.position() < c.position():
                    self.editor.find_spell_word([word],
                                                locale.langcode,
                                                center_on_cursor=False)
            if found:
                suggestions = dictionaries.suggestions(word, locale)[:7]
                if suggestions:
                    for suggestion in suggestions:
                        ac = m.addAction(
                            suggestion,
                            partial(self.editor.simple_replace, suggestion))
                        f = ac.font()
                        f.setBold(True), ac.setFont(f)
                    m.addSeparator()
                m.addAction(actions['spell-next'])
                m.addAction(_('Ignore this word'),
                            partial(self._nuke_word, None, word, locale))
                dics = dictionaries.active_user_dictionaries
                if len(dics) > 0:
                    if len(dics) == 1:
                        m.addAction(
                            _('Add this word to the dictionary: {0}').format(
                                dics[0].name),
                            partial(self._nuke_word, dics[0].name, word,
                                    locale))
                    else:
                        ac = m.addAction(_('Add this word to the dictionary'))
                        dmenu = QMenu(m)
                        ac.setMenu(dmenu)
                        for dic in dics:
                            dmenu.addAction(
                                dic.name,
                                partial(self._nuke_word, dic.name, word,
                                        locale))
                m.addSeparator()

        for x in ('undo', 'redo'):
            a(actions['editor-%s' % x])
        m.addSeparator()
        for x in ('cut', 'copy', 'paste'):
            a(actions['editor-' + x])
        m.addSeparator()
        m.addAction(_('&Select all'), self.editor.select_all)
        m.addAction(actions['mark-selected-text'])
        if self.syntax == 'html':
            m.addAction(actions['multisplit'])
        m.exec_(self.editor.mapToGlobal(pos))
Exemple #35
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class EbookViewer(MainWindow, Ui_EbookViewer):

    STATE_VERSION = 1
    FLOW_MODE_TT = _('Switch to paged mode - where the text is broken up '
            'into pages like a paper book')
    PAGED_MODE_TT = _('Switch to flow mode - where the text is not broken up '
            'into pages')

    def __init__(self, pathtoebook=None, debug_javascript=False, open_at=None,
                 start_in_fullscreen=False):
        MainWindow.__init__(self, None)
        self.setupUi(self)
        self.view.initialize_view(debug_javascript)
        self.view.magnification_changed.connect(self.magnification_changed)
        self.show_toc_on_open = False
        self.current_book_has_toc = False
        self.base_window_title = unicode(self.windowTitle())
        self.iterator          = None
        self.current_page      = None
        self.pending_search    = None
        self.pending_search_dir= None
        self.pending_anchor    = None
        self.pending_reference = None
        self.pending_bookmark  = None
        self.pending_restore   = False
        self.existing_bookmarks= []
        self.selected_text     = None
        self.was_maximized     = False
        self.read_settings()
        self.dictionary_box.hide()
        self.close_dictionary_view.clicked.connect(lambda
                x:self.dictionary_box.hide())
        self.history = History(self.action_back, self.action_forward)
        self.metadata = Metadata(self)
        self.pos = DoubleSpinBox()
        self.pos.setDecimals(1)
        self.pos.setSuffix('/'+_('Unknown')+'     ')
        self.pos.setMinimum(1.)
        self.pos.value_changed.connect(self.update_pos_label)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
        self.pos.setMinimumWidth(150)
        self.tool_bar2.insertWidget(self.action_find_next, self.pos)
        self.reference = Reference()
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.tool_bar2.insertWidget(self.action_find_next, self.reference)
        self.tool_bar2.insertSeparator(self.action_find_next)
        self.setFocusPolicy(Qt.StrongFocus)
        self.search = SearchBox2(self)
        self.search.setMinimumContentsLength(20)
        self.search.initialize('viewer_search_history')
        self.search.setToolTip(_('Search for text in book'))
        self.search.setMinimumWidth(200)
        self.tool_bar2.insertWidget(self.action_find_next, self.search)
        self.view.set_manager(self)
        self.pi = ProgressIndicator(self)
        self.toc.setVisible(False)
        self.action_quit = QAction(_('&Quit'), self)
        self.addAction(self.action_quit)
        self.view_resized_timer = QTimer(self)
        self.view_resized_timer.timeout.connect(self.viewport_resize_finished)
        self.view_resized_timer.setSingleShot(True)
        self.resize_in_progress = False
        self.action_quit.triggered.connect(self.quit)
        self.action_copy.setDisabled(True)
        self.action_metadata.setCheckable(True)
        self.action_table_of_contents.setCheckable(True)
        self.toc.setMinimumWidth(80)
        self.action_reference_mode.setCheckable(True)
        self.action_reference_mode.triggered[bool].connect(self.view.reference_mode)
        self.action_metadata.triggered[bool].connect(self.metadata.setVisible)
        self.action_table_of_contents.toggled[bool].connect(self.set_toc_visible)
        self.action_copy.triggered[bool].connect(self.copy)
        self.action_font_size_larger.triggered.connect(self.font_size_larger)
        self.action_font_size_smaller.triggered.connect(self.font_size_smaller)
        self.action_open_ebook.triggered[bool].connect(self.open_ebook)
        self.action_next_page.triggered.connect(self.view.next_page)
        self.action_previous_page.triggered.connect(self.view.previous_page)
        self.action_find_next.triggered.connect(self.find_next)
        self.action_find_previous.triggered.connect(self.find_previous)
        self.action_full_screen.triggered[bool].connect(self.toggle_fullscreen)
        self.action_full_screen.setToolTip(_('Toggle full screen [%s]') %
                _(' or ').join([x for x in self.view.shortcuts.get_shortcuts('Fullscreen')]))
        self.action_back.triggered[bool].connect(self.back)
        self.action_forward.triggered[bool].connect(self.forward)
        self.action_preferences.triggered.connect(self.do_config)
        self.pos.editingFinished.connect(self.goto_page_num)
        self.vertical_scrollbar.valueChanged[int].connect(lambda
                x:self.goto_page(x/100.))
        self.search.search.connect(self.find)
        self.search.focus_to_library.connect(lambda: self.view.setFocus(Qt.OtherFocusReason))
        self.toc.pressed[QModelIndex].connect(self.toc_clicked)
        self.reference.goto.connect(self.goto)

        self.bookmarks_menu = QMenu()
        self.action_bookmark.setMenu(self.bookmarks_menu)
        self.set_bookmarks([])

        self.themes_menu = QMenu()
        self.action_load_theme.setMenu(self.themes_menu)
        self.tool_bar.widgetForAction(self.action_load_theme).setPopupMode(QToolButton.InstantPopup)
        self.load_theme_menu()

        if pathtoebook is not None:
            f = functools.partial(self.load_ebook, pathtoebook, open_at=open_at)
            QTimer.singleShot(50, f)
        self.view.setMinimumSize(100, 100)
        self.toc.setCursor(Qt.PointingHandCursor)
        self.tool_bar.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar2.setContextMenuPolicy(Qt.PreventContextMenu)
        self.tool_bar.widgetForAction(self.action_bookmark).setPopupMode(QToolButton.InstantPopup)
        self.action_full_screen.setCheckable(True)
        self.full_screen_label = QLabel('''
                <center>
                <h1>%s</h1>
                <h3>%s</h3>
                <h3>%s</h3>
                <h3>%s</h3>
                </center>
                '''%(_('Full screen mode'),
                    _('Right click to show controls'),
                    _('Tap in the left or right page margin to turn pages'),
                    _('Press Esc to quit')),
                    self)
        self.full_screen_label.setVisible(False)
        self.full_screen_label.setStyleSheet('''
        QLabel {
            text-align: center;
            background-color: white;
            color: black;
            border-width: 1px;
            border-style: solid;
            border-radius: 20px;
        }
        ''')
        self.window_mode_changed = None
        self.toggle_toolbar_action = QAction(_('Show/hide controls'), self)
        self.toggle_toolbar_action.setCheckable(True)
        self.toggle_toolbar_action.triggered.connect(self.toggle_toolbars)
        self.toolbar_hidden = None
        self.addAction(self.toggle_toolbar_action)
        self.full_screen_label_anim = QPropertyAnimation(
                self.full_screen_label, 'size')
        self.clock_label = QLabel('99:99', self)
        self.clock_label.setVisible(False)
        self.clock_label.setFocusPolicy(Qt.NoFocus)
        self.info_label_style = '''
            QLabel {
                text-align: center;
                border-width: 1px;
                border-style: solid;
                border-radius: 8px;
                background-color: %s;
                color: %s;
                font-family: monospace;
                font-size: larger;
                padding: 5px;
        }'''
        self.original_frame_style = self.frame.frameStyle()
        self.pos_label = QLabel('2000/4000', self)
        self.pos_label.setVisible(False)
        self.pos_label.setFocusPolicy(Qt.NoFocus)
        self.clock_timer = QTimer(self)
        self.clock_timer.timeout.connect(self.update_clock)

        self.print_menu = QMenu()
        self.print_menu.addAction(QIcon(I('print-preview.png')), _('Print Preview'))
        self.action_print.setMenu(self.print_menu)
        self.tool_bar.widgetForAction(self.action_print).setPopupMode(QToolButton.MenuButtonPopup)
        self.action_print.triggered.connect(self.print_book)
        self.print_menu.actions()[0].triggered.connect(self.print_preview)
        self.open_history_menu = QMenu()
        self.clear_recent_history_action = QAction(
                _('Clear list of recently opened books'), self)
        self.clear_recent_history_action.triggered.connect(self.clear_recent_history)
        self.build_recent_menu()
        self.action_open_ebook.setMenu(self.open_history_menu)
        self.open_history_menu.triggered[QAction].connect(self.open_recent)
        w = self.tool_bar.widgetForAction(self.action_open_ebook)
        w.setPopupMode(QToolButton.MenuButtonPopup)

        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            for action in x.actions():
                # So that the keyboard shortcuts for these actions will
                # continue to function even when the toolbars are hidden
                self.addAction(action)

        for plugin in self.view.document.all_viewer_plugins:
            plugin.customize_ui(self)
        self.view.document.settings_changed.connect(self.settings_changed)

        self.restore_state()
        self.settings_changed()
        self.action_toggle_paged_mode.toggled[bool].connect(self.toggle_paged_mode)
        if (start_in_fullscreen or self.view.document.start_in_fullscreen):
            self.action_full_screen.trigger()

    def toggle_paged_mode(self, checked, at_start=False):
        in_paged_mode = not self.action_toggle_paged_mode.isChecked()
        self.view.document.in_paged_mode = in_paged_mode
        self.action_toggle_paged_mode.setToolTip(self.FLOW_MODE_TT if
                self.action_toggle_paged_mode.isChecked() else
                self.PAGED_MODE_TT)
        if at_start:
            return
        self.reload()

    def settings_changed(self):
        for x in ('', '2'):
            x = getattr(self, 'tool_bar'+x)
            x.setVisible(self.view.document.show_controls)

    def reload(self):
        if hasattr(self, 'current_index') and self.current_index > -1:
            self.view.document.page_position.save(overwrite=False)
            self.pending_restore = True
            self.load_path(self.view.last_loaded_path)

    def set_toc_visible(self, yes):
        self.toc.setVisible(yes)

    def clear_recent_history(self, *args):
        vprefs.set('viewer_open_history', [])
        self.build_recent_menu()

    def build_recent_menu(self):
        m = self.open_history_menu
        m.clear()
        recent = vprefs.get('viewer_open_history', [])
        if recent:
            m.addAction(self.clear_recent_history_action)
            m.addSeparator()
        count = 0
        for path in recent:
            if count > 9:
                break
            if os.path.exists(path):
                m.addAction(RecentAction(path, m))
                count += 1

    def shutdown(self):
        if self.isFullScreen() and not self.view.document.start_in_fullscreen:
            self.action_full_screen.trigger()
            return False
        self.save_state()
        return True

    def quit(self):
        if self.shutdown():
            QApplication.instance().quit()

    def closeEvent(self, e):
        if self.shutdown():
            return MainWindow.closeEvent(self, e)
        else:
            e.ignore()

    def toggle_toolbars(self):
        for x in ('tool_bar', 'tool_bar2'):
            x = getattr(self, x)
            x.setVisible(not x.isVisible())

    def save_state(self):
        state = bytearray(self.saveState(self.STATE_VERSION))
        vprefs['viewer_toolbar_state'] = state
        if not self.isFullScreen():
            vprefs.set('viewer_window_geometry', bytearray(self.saveGeometry()))
        if self.current_book_has_toc:
            vprefs.set('viewer_toc_isvisible', bool(self.toc.isVisible()))
        if self.toc.isVisible():
            vprefs.set('viewer_splitter_state',
                bytearray(self.splitter.saveState()))
        vprefs['multiplier'] = self.view.multiplier
        vprefs['in_paged_mode'] = not self.action_toggle_paged_mode.isChecked()

    def restore_state(self):
        state = vprefs.get('viewer_toolbar_state', None)
        if state is not None:
            try:
                state = QByteArray(state)
                self.restoreState(state, self.STATE_VERSION)
            except:
                pass
        mult = vprefs.get('multiplier', None)
        if mult:
            self.view.multiplier = mult
        # On windows Qt lets the user hide toolbars via a right click in a very
        # specific location, ensure they are visible.
        self.tool_bar.setVisible(True)
        self.tool_bar2.setVisible(True)
        self.action_toggle_paged_mode.setChecked(not vprefs.get('in_paged_mode',
            True))
        self.toggle_paged_mode(self.action_toggle_paged_mode.isChecked(),
                at_start=True)

    def lookup(self, word):
        from calibre.gui2.viewer.documentview import config
        opts = config().parse()
        settings = self.dictionary_view.page().settings()
        settings.setFontSize(settings.DefaultFontSize, opts.default_font_size)
        settings.setFontSize(settings.DefaultFixedFontSize, opts.mono_font_size)
        self.dictionary_view.setHtml('<html><body><p>'+
            _('Connecting to dict.org to lookup: <b>%s</b>&hellip;')%word +
            '</p></body></html>')
        self.dictionary_box.show()
        self._lookup = Lookup(word, parent=self)
        self._lookup.finished.connect(self.looked_up)
        self._lookup.start()

    def looked_up(self, *args):
        html = self._lookup.html_result
        self._lookup = None
        self.dictionary_view.setHtml(html)

    def get_remember_current_page_opt(self):
        from calibre.gui2.viewer.documentview import config
        c = config().parse()
        return c.remember_current_page

    def print_book(self):
        p = Printing(self.iterator, self)
        p.start_print()

    def print_preview(self):
        p = Printing(self.iterator, self)
        p.start_preview()

    def toggle_fullscreen(self):
        if self.isFullScreen():
            self.showNormal()
        else:
            self.showFullScreen()

    def showFullScreen(self):
        self.view.document.page_position.save()
        self.window_mode_changed = 'fullscreen'
        self.tool_bar.setVisible(False)
        self.tool_bar2.setVisible(False)
        self.was_maximized = self.isMaximized()
        if not self.view.document.fullscreen_scrollbar:
            self.vertical_scrollbar.setVisible(False)
            self.frame.layout().setSpacing(0)
        self._original_frame_margins = (
            self.centralwidget.layout().contentsMargins(),
            self.frame.layout().contentsMargins())
        self.frame.layout().setContentsMargins(0, 0, 0, 0)
        self.centralwidget.layout().setContentsMargins(0, 0, 0, 0)
        self.frame.setFrameStyle(self.frame.NoFrame|self.frame.Plain)

        super(EbookViewer, self).showFullScreen()

    def show_full_screen_label(self):
        f = self.full_screen_label
        height = 200
        width = int(0.7*self.view.width())
        f.resize(width, height)
        f.move((self.view.width() - width)//2, (self.view.height()-height)//2)
        if self.view.document.show_fullscreen_help:
            f.setVisible(True)
            a = self.full_screen_label_anim
            a.setDuration(500)
            a.setStartValue(QSize(width, 0))
            a.setEndValue(QSize(width, height))
            a.start()
            QTimer.singleShot(3500, self.full_screen_label.hide)
        self.view.document.switch_to_fullscreen_mode()
        if self.view.document.fullscreen_clock:
            self.show_clock()
        if self.view.document.fullscreen_pos:
            self.show_pos_label()

    def show_clock(self):
        self.clock_label.setVisible(True)
        self.clock_label.setText(QTime(22, 33,
            33).toString(Qt.SystemLocaleShortDate))
        self.clock_timer.start(1000)
        self.clock_label.setStyleSheet(self.info_label_style%(
                'rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        self.clock_label.resize(self.clock_label.sizeHint())
        sw = QApplication.desktop().screenGeometry(self.view)
        vswidth = (self.vertical_scrollbar.width() if
                self.vertical_scrollbar.isVisible() else 0)
        self.clock_label.move(sw.width() - vswidth - 15
                - self.clock_label.width(), sw.height() -
                self.clock_label.height()-10)
        self.update_clock()

    def show_pos_label(self):
        self.pos_label.setVisible(True)
        self.pos_label.setStyleSheet(self.info_label_style%(
                'rgba(0, 0, 0, 0)', self.view.document.colors()[1]))
        sw = QApplication.desktop().screenGeometry(self.view)
        self.pos_label.move(15, sw.height() - self.pos_label.height()-10)
        self.update_pos_label()

    def update_clock(self):
        self.clock_label.setText(QTime.currentTime().toString(Qt.SystemLocaleShortDate))

    def update_pos_label(self, *args):
        if self.pos_label.isVisible():
            try:
                value, maximum = args
            except:
                value, maximum = self.pos.value(), self.pos.maximum()
            text = '%g/%g'%(value, maximum)
            self.pos_label.setText(text)
            self.pos_label.resize(self.pos_label.sizeHint())

    def showNormal(self):
        self.view.document.page_position.save()
        self.clock_label.setVisible(False)
        self.pos_label.setVisible(False)
        self.frame.setFrameStyle(self.original_frame_style)
        self.frame.layout().setSpacing(-1)
        self.clock_timer.stop()
        self.vertical_scrollbar.setVisible(True)
        self.window_mode_changed = 'normal'
        self.settings_changed()
        self.full_screen_label.setVisible(False)
        if hasattr(self, '_original_frame_margins'):
            om = self._original_frame_margins
            self.centralwidget.layout().setContentsMargins(om[0])
            self.frame.layout().setContentsMargins(om[1])
        if self.was_maximized:
            super(EbookViewer, self).showMaximized()
        else:
            super(EbookViewer, self).showNormal()

    def handle_window_mode_toggle(self):
        if self.window_mode_changed:
            fs = self.window_mode_changed == 'fullscreen'
            self.window_mode_changed = None
            if fs:
                self.show_full_screen_label()
            else:
                self.view.document.switch_to_window_mode()
            self.view.document.page_position.restore()
            self.scrolled(self.view.scroll_fraction)

    def goto(self, ref):
        if ref:
            tokens = ref.split('.')
            if len(tokens) > 1:
                spine_index = int(tokens[0]) -1
                if spine_index == self.current_index:
                    self.view.goto(ref)
                else:
                    self.pending_reference = ref
                    self.load_path(self.iterator.spine[spine_index])

    def goto_bookmark(self, bm):
        spine_index = bm['spine']
        if spine_index > -1 and self.current_index == spine_index:
            if self.resize_in_progress:
                self.view.document.page_position.set_pos(bm['pos'])
            else:
                self.view.goto_bookmark(bm)
        else:
            self.pending_bookmark = bm
            if spine_index < 0 or spine_index >= len(self.iterator.spine):
                spine_index = 0
                self.pending_bookmark = None
            self.load_path(self.iterator.spine[spine_index])

    def toc_clicked(self, index, force=False):
        if force or QApplication.mouseButtons() & Qt.LeftButton:
            item = self.toc_model.itemFromIndex(index)
            if item.abspath is not None:
                if not os.path.exists(item.abspath):
                    return error_dialog(self, _('No such location'),
                            _('The location pointed to by this item'
                                ' does not exist.'), det_msg=item.abspath, show=True)
                url = QUrl.fromLocalFile(item.abspath)
                if item.fragment:
                    url.setFragment(item.fragment)
                self.link_clicked(url)
        self.view.setFocus(Qt.OtherFocusReason)

    def selection_changed(self, selected_text):
        self.selected_text = selected_text.strip()
        self.action_copy.setEnabled(bool(self.selected_text))

    def copy(self, x):
        if self.selected_text:
            QApplication.clipboard().setText(self.selected_text)

    def back(self, x):
        pos = self.history.back(self.pos.value())
        if pos is not None:
            self.goto_page(pos)

    def goto_page_num(self):
        num = self.pos.value()
        self.goto_page(num)

    def forward(self, x):
        pos = self.history.forward(self.pos.value())
        if pos is not None:
            self.goto_page(pos)

    def goto_start(self):
        self.goto_page(1)

    def goto_end(self):
        self.goto_page(self.pos.maximum())

    def goto_page(self, new_page, loaded_check=True):
        if self.current_page is not None or not loaded_check:
            for page in self.iterator.spine:
                if new_page >= page.start_page and new_page <= page.max_page:
                    try:
                        frac = float(new_page-page.start_page)/(page.pages-1)
                    except ZeroDivisionError:
                        frac = 0
                    if page == self.current_page:
                        self.view.scroll_to(frac)
                    else:
                        self.load_path(page, pos=frac)

    def open_ebook(self, checked):
        files = choose_files(self, 'ebook viewer open dialog',
                     _('Choose ebook'),
                     [(_('Ebooks'), available_input_formats())],
                     all_files=False,
                     select_only_single_file=True)
        if files:
            self.load_ebook(files[0])

    def open_recent(self, action):
        self.load_ebook(action.path)

    def font_size_larger(self):
        self.view.magnify_fonts()

    def font_size_smaller(self):
        self.view.shrink_fonts()

    def magnification_changed(self, val):
        tt = '%(action)s [%(sc)s]\n'+_('Current magnification: %(mag).1f')
        sc = _(' or ').join(self.view.shortcuts.get_shortcuts('Font larger'))
        self.action_font_size_larger.setToolTip(
                tt %dict(action=unicode(self.action_font_size_larger.text()),
                         mag=val, sc=sc))
        sc = _(' or ').join(self.view.shortcuts.get_shortcuts('Font smaller'))
        self.action_font_size_smaller.setToolTip(
                tt %dict(action=unicode(self.action_font_size_smaller.text()),
                         mag=val, sc=sc))
        self.action_font_size_larger.setEnabled(self.view.multiplier < 3)
        self.action_font_size_smaller.setEnabled(self.view.multiplier > 0.2)

    def find(self, text, repeat=False, backwards=False):
        if not text:
            self.view.search('')
            return self.search.search_done(False)
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)
            return self.search.search_done(True)
        index = self.iterator.search(text, self.current_index,
                backwards=backwards)
        if index is None:
            if self.current_index > 0:
                index = self.iterator.search(text, 0)
                if index is None:
                    info_dialog(self, _('No matches found'),
                                _('No matches found for: %s')%text).exec_()
                    return self.search.search_done(True)
            return self.search.search_done(True)
        self.pending_search = text
        self.pending_search_dir = 'backwards' if backwards else 'forwards'
        self.load_path(self.iterator.spine[index])

    def find_next(self):
        self.find(unicode(self.search.text()), repeat=True)

    def find_previous(self):
        self.find(unicode(self.search.text()), repeat=True, backwards=True)

    def do_search(self, text, backwards):
        self.pending_search = None
        self.pending_search_dir = None
        if self.view.search(text, backwards=backwards):
            self.scrolled(self.view.scroll_fraction)

    def internal_link_clicked(self, frac):
        self.update_page_number()  # Ensure page number is accurate as it is used for history
        self.history.add(self.pos.value())

    def link_clicked(self, url):
        path = os.path.abspath(unicode(url.toLocalFile()))
        frag = None
        if path in self.iterator.spine:
            self.update_page_number()  # Ensure page number is accurate as it is used for history
            self.history.add(self.pos.value())
            path = self.iterator.spine[self.iterator.spine.index(path)]
            if url.hasFragment():
                frag = unicode(url.fragment())
            if path != self.current_page:
                self.pending_anchor = frag
                self.load_path(path)
            else:
                oldpos = self.view.document.ypos
                if frag:
                    self.view.scroll_to(frag)
                else:
                    # Scroll to top
                    self.view.scroll_to(0)
                if self.view.document.ypos == oldpos:
                    # If we are coming from goto_next_section() call this will
                    # cause another goto next section call with the next toc
                    # entry, since this one did not cause any scrolling at all.
                    QTimer.singleShot(10, self.update_indexing_state)
        else:
            open_url(url)

    def load_started(self):
        self.open_progress_indicator(_('Loading flow...'))

    def load_finished(self, ok):
        self.close_progress_indicator()
        path = self.view.path()
        try:
            index = self.iterator.spine.index(path)
        except (ValueError, AttributeError):
            return -1
        self.current_page = self.iterator.spine[index]
        self.current_index = index
        self.set_page_number(self.view.scroll_fraction)
        QTimer.singleShot(100, self.update_indexing_state)
        if self.pending_search is not None:
            self.do_search(self.pending_search,
                    self.pending_search_dir=='backwards')
            self.pending_search = None
            self.pending_search_dir = None
        if self.pending_anchor is not None:
            self.view.scroll_to(self.pending_anchor)
            self.pending_anchor = None
        if self.pending_reference is not None:
            self.view.goto(self.pending_reference)
            self.pending_reference = None
        if self.pending_bookmark is not None:
            self.goto_bookmark(self.pending_bookmark)
            self.pending_bookmark = None
        if self.pending_restore:
            self.view.document.page_position.restore()
        return self.current_index

    def goto_next_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(self.current_index,
                    self.view.document.read_anchor_positions(),
                    self.view.viewport_rect, self.view.document.in_paged_mode)
            if entry is not None:
                self.pending_goto_next_section = (
                        self.toc_model.currently_viewed_entry, entry, False)
                self.toc_clicked(entry.index(), force=True)

    def goto_previous_section(self):
        if hasattr(self, 'current_index'):
            entry = self.toc_model.next_entry(self.current_index,
                    self.view.document.read_anchor_positions(),
                    self.view.viewport_rect, self.view.document.in_paged_mode,
                    backwards=True)
            if entry is not None:
                self.pending_goto_next_section = (
                        self.toc_model.currently_viewed_entry, entry, True)
                self.toc_clicked(entry.index(), force=True)

    def update_indexing_state(self, anchor_positions=None):
        pgns = getattr(self, 'pending_goto_next_section', None)
        if hasattr(self, 'current_index'):
            if anchor_positions is None:
                anchor_positions = self.view.document.read_anchor_positions()
            items = self.toc_model.update_indexing_state(self.current_index,
                        self.view.viewport_rect, anchor_positions,
                        self.view.document.in_paged_mode)
            if items:
                self.toc.scrollTo(items[-1].index())
            if pgns is not None:
                self.pending_goto_next_section = None
                # Check that we actually progressed
                if pgns[0] is self.toc_model.currently_viewed_entry:
                    entry = self.toc_model.next_entry(self.current_index,
                            self.view.document.read_anchor_positions(),
                            self.view.viewport_rect,
                            self.view.document.in_paged_mode,
                            backwards=pgns[2], current_entry=pgns[1])
                    if entry is not None:
                        self.pending_goto_next_section = (
                                self.toc_model.currently_viewed_entry, entry,
                                pgns[2])
                        self.toc_clicked(entry.index(), force=True)

    def load_path(self, path, pos=0.0):
        self.open_progress_indicator(_('Laying out %s')%self.current_title)
        self.view.load_path(path, pos=pos)

    def viewport_resize_started(self, event):
        old, curr = event.size(), event.oldSize()
        if not self.window_mode_changed and old.width() == curr.width():
            # No relayout changes, so page position does not need to be saved
            # This is needed as Qt generates a viewport resized event that
            # changes only the height after a file has been loaded. This can
            # cause the last read position bookmark to become slightly
            # inaccurate
            return
        if not self.resize_in_progress:
            # First resize, so save the current page position
            self.resize_in_progress = True
            if not self.window_mode_changed:
                # The special handling for window mode changed will already
                # have saved page position, so only save it if this is not a
                # mode change
                self.view.document.page_position.save()

        if self.resize_in_progress:
            self.view_resized_timer.start(75)

    def viewport_resize_finished(self):
        # There hasn't been a resize event for some time
        # restore the current page position.
        self.resize_in_progress = False
        if self.window_mode_changed:
            # This resize is part of a window mode change, special case it
            self.handle_window_mode_toggle()
        else:
            self.view.document.page_position.restore()
        self.view.document.after_resize()
        # For some reason scroll_fraction returns incorrect results in paged
        # mode for some time after a resize is finished. No way of knowing
        # exactly how long, so we update it in a second, in the hopes that it
        # will be enough *most* of the time.
        QTimer.singleShot(1000, self.update_page_number)

    def update_page_number(self):
        self.set_page_number(self.view.document.scroll_fraction)

    def close_progress_indicator(self):
        self.pi.stop()
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar', 'vertical_scrollbar'):
            getattr(self, o).setEnabled(True)
        self.unsetCursor()
        self.view.setFocus(Qt.PopupFocusReason)

    def open_progress_indicator(self, msg=''):
        self.pi.start(msg)
        for o in ('tool_bar', 'tool_bar2', 'view', 'horizontal_scrollbar', 'vertical_scrollbar'):
            getattr(self, o).setEnabled(False)
        self.setCursor(Qt.BusyCursor)

    def load_theme_menu(self):
        from calibre.gui2.viewer.config import load_themes
        self.themes_menu.clear()
        for key in load_themes():
            title = key[len('theme_'):]
            self.themes_menu.addAction(title, partial(self.load_theme,
                key))

    def load_theme(self, theme_id):
        self.view.load_theme(theme_id)

    def do_config(self):
        self.view.config(self)
        self.load_theme_menu()
        from calibre.gui2 import config
        if not config['viewer_search_history']:
            self.search.clear_history()

    def bookmark(self, *args):
        num = 1
        bm = None
        while True:
            bm = _('Bookmark #%d')%num
            if bm not in self.existing_bookmarks:
                break
            num += 1
        title, ok = QInputDialog.getText(self, _('Add bookmark'),
                _('Enter title for bookmark:'), text=bm)
        title = unicode(title).strip()
        if ok and title:
            bm = self.view.bookmark()
            bm['spine'] = self.current_index
            bm['title'] = title
            self.iterator.add_bookmark(bm)
            self.set_bookmarks(self.iterator.bookmarks)

    def set_bookmarks(self, bookmarks):
        self.bookmarks_menu.clear()
        self.bookmarks_menu.addAction(_("Bookmark this location"), self.bookmark)
        self.bookmarks_menu.addAction(_("Manage Bookmarks"), self.manage_bookmarks)
        self.bookmarks_menu.addSeparator()
        current_page = None
        self.existing_bookmarks = []
        for bm in bookmarks:
            if bm['title'] == 'calibre_current_page_bookmark':
                if self.get_remember_current_page_opt():
                    current_page = bm
            else:
                self.existing_bookmarks.append(bm['title'])
                self.bookmarks_menu.addAction(bm['title'], partial(self.goto_bookmark, bm))
        return current_page

    def manage_bookmarks(self):
        bmm = BookmarkManager(self, self.iterator.bookmarks)
        if bmm.exec_() != BookmarkManager.Accepted:
            return

        bookmarks = bmm.get_bookmarks()

        if bookmarks != self.iterator.bookmarks:
            self.iterator.set_bookmarks(bookmarks)
            self.iterator.save_bookmarks()
            self.set_bookmarks(bookmarks)

    def save_current_position(self):
        if not self.get_remember_current_page_opt():
            return
        if hasattr(self, 'current_index'):
            try:
                bm = self.view.bookmark()
                bm['spine'] = self.current_index
                bm['title'] = 'calibre_current_page_bookmark'
                self.iterator.add_bookmark(bm)
            except:
                traceback.print_exc()

    def load_ebook(self, pathtoebook, open_at=None):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__()
        self.iterator = EbookIterator(pathtoebook)
        self.open_progress_indicator(_('Loading ebook...'))
        worker = Worker(target=partial(self.iterator.__enter__,
            extract_embedded_fonts_for_qt=True))
        worker.start()
        while worker.isAlive():
            worker.join(0.1)
            QApplication.processEvents()
        if worker.exception is not None:
            if isinstance(worker.exception, DRMError):
                from calibre.gui2.dialogs.drm_error import DRMErrorMessage
                DRMErrorMessage(self).exec_()
            else:
                r = getattr(worker.exception, 'reason', worker.exception)
                error_dialog(self, _('Could not open ebook'),
                        as_unicode(r) or _('Unknown error'),
                        det_msg=worker.traceback, show=True)
            self.close_progress_indicator()
        else:
            self.metadata.show_opf(self.iterator.opf,
                    self.iterator.book_format)
            self.view.current_language = self.iterator.language
            title = self.iterator.opf.title
            if not title:
                title = os.path.splitext(os.path.basename(pathtoebook))[0]
            if self.iterator.toc:
                self.toc_model = TOC(self.iterator.spine, self.iterator.toc)
                self.toc.setModel(self.toc_model)
                if self.show_toc_on_open:
                    self.action_table_of_contents.setChecked(True)
            else:
                self.toc_model = TOC(self.iterator.spine)
                self.toc.setModel(self.toc_model)
                self.action_table_of_contents.setChecked(False)
            if isbytestring(pathtoebook):
                pathtoebook = force_unicode(pathtoebook, filesystem_encoding)
            vh = vprefs.get('viewer_open_history', [])
            try:
                vh.remove(pathtoebook)
            except:
                pass
            vh.insert(0, pathtoebook)
            vprefs.set('viewer_open_history', vh[:50])
            self.build_recent_menu()

            self.action_table_of_contents.setDisabled(not self.iterator.toc)
            self.current_book_has_toc = bool(self.iterator.toc)
            self.current_title = title
            self.setWindowTitle(self.base_window_title+' - '+title +
                    ' [%s]'%self.iterator.book_format)
            self.pos.setMaximum(sum(self.iterator.pages))
            self.pos.setSuffix(' / %d'%sum(self.iterator.pages))
            self.vertical_scrollbar.setMinimum(100)
            self.vertical_scrollbar.setMaximum(100*sum(self.iterator.pages))
            self.vertical_scrollbar.setSingleStep(10)
            self.vertical_scrollbar.setPageStep(100)
            self.set_vscrollbar_value(1)
            self.current_index = -1
            QApplication.instance().alert(self, 5000)
            previous = self.set_bookmarks(self.iterator.bookmarks)
            if open_at is None and previous is not None:
                self.goto_bookmark(previous)
            else:
                if open_at is None:
                    self.next_document()
                else:
                    if open_at > self.pos.maximum():
                        open_at = self.pos.maximum()
                    if open_at < self.pos.minimum():
                        open_at = self.pos.minimum()
                    self.goto_page(open_at, loaded_check=False)

    def set_vscrollbar_value(self, pagenum):
        self.vertical_scrollbar.blockSignals(True)
        self.vertical_scrollbar.setValue(int(pagenum*100))
        self.vertical_scrollbar.blockSignals(False)

    def set_page_number(self, frac):
        if getattr(self, 'current_page', None) is not None:
            page = self.current_page.start_page + frac*float(self.current_page.pages-1)
            self.pos.set_value(page)
            self.set_vscrollbar_value(page)

    def scrolled(self, frac, onload=False):
        self.set_page_number(frac)
        if not onload:
            ap = self.view.document.read_anchor_positions()
            self.update_indexing_state(ap)

    def next_document(self):
        if (hasattr(self, 'current_index') and self.current_index <
                len(self.iterator.spine) - 1):
            self.load_path(self.iterator.spine[self.current_index+1])

    def previous_document(self):
        if hasattr(self, 'current_index') and self.current_index > 0:
            self.load_path(self.iterator.spine[self.current_index-1], pos=1.0)

    def keyPressEvent(self, event):
        if event.key() == Qt.Key_Escape:
            if self.metadata.isVisible():
                self.metadata.setVisible(False)
                event.accept()
                return
            if self.isFullScreen():
                self.toggle_fullscreen()
                event.accept()
                return
        try:
            key = self.view.shortcuts.get_match(event)
        except AttributeError:
            return MainWindow.keyPressEvent(self, event)
        action = {
            'Quit':self.action_quit,
            'Show metadata':self.action_metadata,
            'Copy':self.view.copy_action,
            'Font larger': self.action_font_size_larger,
            'Font smaller': self.action_font_size_smaller,
            'Fullscreen': self.action_full_screen,
            'Find next': self.action_find_next,
            'Find previous': self.action_find_previous,
            'Search online': self.view.search_online_action,
            'Lookup word': self.view.dictionary_action,
            'Next occurrence': self.view.search_action,
        }.get(key, None)
        if action is not None:
            event.accept()
            action.trigger()
            return
        if key == 'Focus Search':
            self.search.setFocus(Qt.OtherFocusReason)
        if not self.view.handle_key_press(event):
            event.ignore()

    def __enter__(self):
        return self

    def __exit__(self, *args):
        if self.iterator is not None:
            self.save_current_position()
            self.iterator.__exit__(*args)

    def read_settings(self):
        c = config().parse()
        self.splitter.setSizes([1, 300])
        if c.remember_window_size:
            wg = vprefs.get('viewer_window_geometry', None)
            if wg is not None:
                self.restoreGeometry(wg)
            ss = vprefs.get('viewer_splitter_state', None)
            if ss is not None:
                self.splitter.restoreState(ss)
            self.show_toc_on_open = vprefs.get('viewer_toc_isvisible', False)
        av = available_height() - 30
        if self.height() > av:
            self.resize(self.width(), av)
        self.splitter.setCollapsible(0, False)
        self.splitter.setCollapsible(1, False)
Exemple #36
0
class BooksView(QTableView):  # {{{

    files_dropped = pyqtSignal(object)
    add_column_signal = pyqtSignal()
    is_library_view = True

    def viewportEvent(self, event):
        if (event.type() == event.ToolTip
                and not gprefs['book_list_tooltips']):
            return False
        return QTableView.viewportEvent(self, event)

    def __init__(self,
                 parent,
                 modelcls=BooksModel,
                 use_edit_metadata_dialog=True):
        QTableView.__init__(self, parent)
        self.gui = parent
        self.setProperty('highlight_current_item', 150)
        self.row_sizing_done = False
        self.alternate_views = AlternateViews(self)

        if not tweaks['horizontal_scrolling_per_column']:
            self.setHorizontalScrollMode(self.ScrollPerPixel)

        self.setEditTriggers(self.EditKeyPressed)
        if tweaks['doubleclick_on_library_view'] == 'edit_cell':
            self.setEditTriggers(self.DoubleClicked | self.editTriggers())
        elif tweaks['doubleclick_on_library_view'] == 'open_viewer':
            self.setEditTriggers(self.SelectedClicked | self.editTriggers())
            self.doubleClicked.connect(parent.iactions['View'].view_triggered)
        elif tweaks['doubleclick_on_library_view'] == 'edit_metadata':
            # Must not enable single-click to edit, or the field will remain
            # open in edit mode underneath the edit metadata dialog
            if use_edit_metadata_dialog:
                self.doubleClicked.connect(
                    partial(parent.iactions['Edit Metadata'].edit_metadata,
                            checked=False))
            else:
                self.setEditTriggers(self.DoubleClicked | self.editTriggers())

        setup_dnd_interface(self)
        self.setAlternatingRowColors(True)
        self.setShowGrid(False)
        self.setWordWrap(False)

        self.rating_delegate = RatingDelegate(self)
        self.timestamp_delegate = DateDelegate(self)
        self.pubdate_delegate = PubDateDelegate(self)
        self.last_modified_delegate = DateDelegate(
            self, tweak_name='gui_last_modified_display_format')
        self.languages_delegate = LanguagesDelegate(self)
        self.tags_delegate = CompleteDelegate(self, ',', 'all_tag_names')
        self.authors_delegate = CompleteDelegate(self, '&', 'all_author_names',
                                                 True)
        self.cc_names_delegate = CompleteDelegate(self, '&', 'all_custom',
                                                  True)
        self.series_delegate = TextDelegate(self)
        self.publisher_delegate = TextDelegate(self)
        self.text_delegate = TextDelegate(self)
        self.cc_text_delegate = CcTextDelegate(self)
        self.cc_enum_delegate = CcEnumDelegate(self)
        self.cc_bool_delegate = CcBoolDelegate(self)
        self.cc_comments_delegate = CcCommentsDelegate(self)
        self.cc_template_delegate = CcTemplateDelegate(self)
        self.cc_number_delegate = CcNumberDelegate(self)
        self.display_parent = parent
        self._model = modelcls(self)
        self.setModel(self._model)
        self._model.count_changed_signal.connect(self.do_row_sizing,
                                                 type=Qt.QueuedConnection)
        self.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.setSortingEnabled(True)
        self.selectionModel().currentRowChanged.connect(
            self._model.current_changed)
        self.preserve_state = partial(PreserveViewState, self)
        self.marked_changed_listener = FunctionDispatcher(self.marked_changed)

        # {{{ Column Header setup
        self.can_add_columns = True
        self.was_restored = False
        self.column_header = HeaderView(Qt.Horizontal, self)
        self.setHorizontalHeader(self.column_header)
        self.column_header.sortIndicatorChanged.disconnect()
        self.column_header.sortIndicatorChanged.connect(
            self.user_sort_requested)
        self.column_header.setMovable(True)
        self.column_header.setClickable(True)
        self.column_header.sectionMoved.connect(self.save_state)
        self.column_header.setContextMenuPolicy(Qt.CustomContextMenu)
        self.column_header.customContextMenuRequested.connect(
            self.show_column_header_context_menu)
        self.column_header.sectionResized.connect(self.column_resized,
                                                  Qt.QueuedConnection)
        self.row_header = HeaderView(Qt.Vertical, self)
        self.row_header.setResizeMode(self.row_header.Fixed)
        self.setVerticalHeader(self.row_header)
        # }}}

        self._model.database_changed.connect(self.database_changed)
        hv = self.verticalHeader()
        hv.setClickable(True)
        hv.setCursor(Qt.PointingHandCursor)
        self.selected_ids = []
        self._model.about_to_be_sorted.connect(self.about_to_be_sorted)
        self._model.sorting_done.connect(self.sorting_done,
                                         type=Qt.QueuedConnection)

    # Column Header Context Menu {{{
    def column_header_context_handler(self, action=None, column=None):
        if not action or not column:
            return
        try:
            idx = self.column_map.index(column)
        except:
            return
        h = self.column_header

        if action == 'hide':
            h.setSectionHidden(idx, True)
        elif action == 'show':
            h.setSectionHidden(idx, False)
            if h.sectionSize(idx) < 3:
                sz = h.sectionSizeHint(idx)
                h.resizeSection(idx, sz)
        elif action == 'ascending':
            self.sort_by_column_and_order(idx, True)
        elif action == 'descending':
            self.sort_by_column_and_order(idx, False)
        elif action == 'defaults':
            self.apply_state(self.get_default_state())
        elif action == 'addcustcol':
            self.add_column_signal.emit()
        elif action.startswith('align_'):
            alignment = action.partition('_')[-1]
            self._model.change_alignment(column, alignment)
        elif action == 'quickview':
            from calibre.customize.ui import find_plugin
            qv = find_plugin('Show Quickview')
            if qv:
                rows = self.selectionModel().selectedRows()
                if len(rows) > 0:
                    current_row = rows[0].row()
                    current_col = self.column_map.index(column)
                    index = self.model().index(current_row, current_col)
                    qv.actual_plugin_.change_quickview_column(index)

        self.save_state()

    def show_column_header_context_menu(self, pos):
        idx = self.column_header.logicalIndexAt(pos)
        if idx > -1 and idx < len(self.column_map):
            col = self.column_map[idx]
            name = unicode(self.model().headerData(idx, Qt.Horizontal,
                                                   Qt.DisplayRole).toString())
            self.column_header_context_menu = QMenu(self)
            if col != 'ondevice':
                self.column_header_context_menu.addAction(
                    _('Hide column %s') % name,
                    partial(self.column_header_context_handler,
                            action='hide',
                            column=col))
            m = self.column_header_context_menu.addMenu(_('Sort on %s') % name)
            a = m.addAction(
                _('Ascending'),
                partial(self.column_header_context_handler,
                        action='ascending',
                        column=col))
            d = m.addAction(
                _('Descending'),
                partial(self.column_header_context_handler,
                        action='descending',
                        column=col))
            if self._model.sorted_on[0] == col:
                ac = a if self._model.sorted_on[1] else d
                ac.setCheckable(True)
                ac.setChecked(True)
            if col not in ('ondevice', 'inlibrary') and \
                    (not self.model().is_custom_column(col) or
                    self.model().custom_columns[col]['datatype'] not in ('bool',
                        )):
                m = self.column_header_context_menu.addMenu(
                    _('Change text alignment for %s') % name)
                al = self._model.alignment_map.get(col, 'left')
                for x, t in (('left', _('Left')), ('right', _('Right')),
                             ('center', _('Center'))):
                    a = m.addAction(
                        t,
                        partial(self.column_header_context_handler,
                                action='align_' + x,
                                column=col))
                    if al == x:
                        a.setCheckable(True)
                        a.setChecked(True)

            if not isinstance(self, DeviceBooksView):
                if self._model.db.field_metadata[col]['is_category']:
                    act = self.column_header_context_menu.addAction(
                        _('Quickview column %s') % name,
                        partial(self.column_header_context_handler,
                                action='quickview',
                                column=col))
                    rows = self.selectionModel().selectedRows()
                    if len(rows) > 1:
                        act.setEnabled(False)

            hidden_cols = [
                self.column_map[i] for i in range(self.column_header.count())
                if self.column_header.isSectionHidden(i)
            ]
            try:
                hidden_cols.remove('ondevice')
            except:
                pass
            if hidden_cols:
                self.column_header_context_menu.addSeparator()
                m = self.column_header_context_menu.addMenu(_('Show column'))
                for col in hidden_cols:
                    hidx = self.column_map.index(col)
                    name = unicode(self.model().headerData(
                        hidx, Qt.Horizontal, Qt.DisplayRole).toString())
                    m.addAction(
                        name,
                        partial(self.column_header_context_handler,
                                action='show',
                                column=col))

            self.column_header_context_menu.addSeparator()
            self.column_header_context_menu.addAction(
                _('Shrink column if it is too wide to fit'),
                partial(self.resize_column_to_fit,
                        column=self.column_map[idx]))
            self.column_header_context_menu.addAction(
                _('Restore default layout'),
                partial(self.column_header_context_handler,
                        action='defaults',
                        column=col))

            if self.can_add_columns:
                self.column_header_context_menu.addAction(
                    QIcon(I('column.png')), _('Add your own columns'),
                    partial(self.column_header_context_handler,
                            action='addcustcol',
                            column=col))

            self.column_header_context_menu.popup(
                self.column_header.mapToGlobal(pos))

    # }}}

    # Sorting {{{
    def sort_by_column_and_order(self, col, ascending):
        self.column_header.blockSignals(True)
        self.sortByColumn(
            col, Qt.AscendingOrder if ascending else Qt.DescendingOrder)
        self.column_header.blockSignals(False)

    def user_sort_requested(self, col, order=Qt.AscendingOrder):
        if col >= len(self.column_map) or col < 0:
            return QTableView.sortByColumn(self, col)
        field = self.column_map[col]
        self.intelligent_sort(field, order == Qt.AscendingOrder)

    def intelligent_sort(self, field, ascending):
        m = self.model()
        pname = 'previous_sort_order_' + self.__class__.__name__
        previous = gprefs.get(pname, {})
        if field == m.sorted_on[0] or field not in previous:
            self.sort_by_named_field(field, ascending)
            previous[field] = ascending
            gprefs[pname] = previous
            return
        previous[m.sorted_on[0]] = m.sorted_on[1]
        gprefs[pname] = previous
        self.sort_by_named_field(field, previous[field])

    def about_to_be_sorted(self, idc):
        selected_rows = [r.row() for r in self.selectionModel().selectedRows()]
        self.selected_ids = [idc(r) for r in selected_rows]

    def sorting_done(self, indexc):
        pos = self.horizontalScrollBar().value()
        self.select_rows(self.selected_ids,
                         using_ids=True,
                         change_current=True,
                         scroll=True)
        self.selected_ids = []
        self.horizontalScrollBar().setValue(pos)

    def sort_by_named_field(self, field, order, reset=True):
        if field in self.column_map:
            idx = self.column_map.index(field)
            self.sort_by_column_and_order(idx, order)
        else:
            self._model.sort_by_named_field(field, order, reset)
            self.column_header.blockSignals(True)
            self.column_header.setSortIndicator(-1, Qt.AscendingOrder)
            self.column_header.blockSignals(False)

    def multisort(self, fields, reset=True, only_if_different=False):
        if len(fields) == 0:
            return
        sh = self.cleanup_sort_history(self._model.sort_history,
                                       ignore_column_map=True)
        if only_if_different and len(sh) >= len(fields):
            ret = True
            for i, t in enumerate(fields):
                if t[0] != sh[i][0]:
                    ret = False
                    break
            if ret:
                return

        for n, d in reversed(fields):
            if n in self._model.db.field_metadata.keys():
                sh.insert(0, (n, d))
        sh = self.cleanup_sort_history(sh, ignore_column_map=True)
        self._model.sort_history = [tuple(x) for x in sh]
        self._model.resort(reset=reset)
        col = fields[0][0]
        dir = Qt.AscendingOrder if fields[0][1] else Qt.DescendingOrder
        if col in self.column_map:
            col = self.column_map.index(col)
            self.column_header.blockSignals(True)
            try:
                self.column_header.setSortIndicator(col, dir)
            finally:
                self.column_header.blockSignals(False)

    # }}}

    # Ondevice column {{{
    def set_ondevice_column_visibility(self):
        m = self._model
        self.column_header.setSectionHidden(m.column_map.index('ondevice'),
                                            not m.device_connected)

    def set_device_connected(self, is_connected):
        self._model.set_device_connected(is_connected)
        self.set_ondevice_column_visibility()

    # }}}

    # Save/Restore State {{{
    def get_state(self):
        h = self.column_header
        cm = self.column_map
        state = {}
        state['hidden_columns'] = [
            cm[i] for i in range(h.count())
            if h.isSectionHidden(i) and cm[i] != 'ondevice'
        ]
        state['last_modified_injected'] = True
        state['languages_injected'] = True
        state['sort_history'] = \
            self.cleanup_sort_history(self.model().sort_history, ignore_column_map=self.is_library_view)
        state['column_positions'] = {}
        state['column_sizes'] = {}
        state['column_alignment'] = self._model.alignment_map
        for i in range(h.count()):
            name = cm[i]
            state['column_positions'][name] = h.visualIndex(i)
            if name != 'ondevice':
                state['column_sizes'][name] = h.sectionSize(i)
        return state

    def write_state(self, state):
        db = getattr(self.model(), 'db', None)
        name = unicode(self.objectName())
        if name and db is not None:
            db.prefs.set(name + ' books view state', state)

    def save_state(self):
        # Only save if we have been initialized (set_database called)
        if len(self.column_map) > 0 and self.was_restored:
            state = self.get_state()
            self.write_state(state)

    def cleanup_sort_history(self, sort_history, ignore_column_map=False):
        history = []

        for col, order in sort_history:
            if not isinstance(order, bool):
                continue
            col = {'date': 'timestamp', 'sort': 'title'}.get(col, col)
            if ignore_column_map or col in self.column_map:
                if (not history or history[-1][0] != col):
                    history.append([col, order])
        return history

    def apply_sort_history(self, saved_history, max_sort_levels=3):
        if not saved_history:
            return
        if self.is_library_view:
            for col, order in reversed(
                    self.cleanup_sort_history(
                        saved_history,
                        ignore_column_map=True)[:max_sort_levels]):
                self.sort_by_named_field(col, order)
        else:
            for col, order in reversed(
                    self.cleanup_sort_history(saved_history)
                [:max_sort_levels]):
                self.sort_by_column_and_order(self.column_map.index(col),
                                              order)

    def apply_state(self, state, max_sort_levels=3):
        h = self.column_header
        cmap = {}
        hidden = state.get('hidden_columns', [])
        for i, c in enumerate(self.column_map):
            cmap[c] = i
            if c != 'ondevice':
                h.setSectionHidden(i, c in hidden)

        positions = state.get('column_positions', {})
        pmap = {}
        for col, pos in positions.items():
            if col in cmap:
                pmap[pos] = col
        for pos in sorted(pmap.keys()):
            col = pmap[pos]
            idx = cmap[col]
            current_pos = h.visualIndex(idx)
            if current_pos != pos:
                h.moveSection(current_pos, pos)

        sizes = state.get('column_sizes', {})
        for col, size in sizes.items():
            if col in cmap:
                sz = sizes[col]
                if sz < 3:
                    sz = h.sectionSizeHint(cmap[col])
                h.resizeSection(cmap[col], sz)

        self.apply_sort_history(state.get('sort_history', None),
                                max_sort_levels=max_sort_levels)

        for col, alignment in state.get('column_alignment', {}).items():
            self._model.change_alignment(col, alignment)

        for i in range(h.count()):
            if not h.isSectionHidden(i) and h.sectionSize(i) < 3:
                sz = h.sectionSizeHint(i)
                h.resizeSection(i, sz)

    def get_default_state(self):
        old_state = {
            'hidden_columns': ['last_modified', 'languages'],
            'sort_history': [DEFAULT_SORT],
            'column_positions': {},
            'column_sizes': {},
            'column_alignment': {
                'size': 'center',
                'timestamp': 'center',
                'pubdate': 'center'
            },
            'last_modified_injected': True,
            'languages_injected': True,
        }
        h = self.column_header
        cm = self.column_map
        for i in range(h.count()):
            name = cm[i]
            old_state['column_positions'][name] = i
            if name != 'ondevice':
                old_state['column_sizes'][name] = \
                    min(350, max(self.sizeHintForColumn(i),
                        h.sectionSizeHint(i)))
                if name in ('timestamp', 'last_modified'):
                    old_state['column_sizes'][name] += 12
        return old_state

    def get_old_state(self):
        ans = None
        name = unicode(self.objectName())
        if name:
            name += ' books view state'
            db = getattr(self.model(), 'db', None)
            if db is not None:
                ans = db.prefs.get(name, None)
                if ans is None:
                    ans = gprefs.get(name, None)
                    try:
                        del gprefs[name]
                    except:
                        pass
                    if ans is not None:
                        db.prefs[name] = ans
                else:
                    injected = False
                    if not ans.get('last_modified_injected', False):
                        injected = True
                        ans['last_modified_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'last_modified' not in hc:
                            hc.append('last_modified')
                    if not ans.get('languages_injected', False):
                        injected = True
                        ans['languages_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'languages' not in hc:
                            hc.append('languages')
                    if injected:
                        db.prefs[name] = ans
        return ans

    def restore_state(self):
        old_state = self.get_old_state()
        if old_state is None:
            old_state = self.get_default_state()
        max_levels = 3

        if tweaks['sort_columns_at_startup'] is not None:
            sh = []
            try:
                for c, d in tweaks['sort_columns_at_startup']:
                    if not isinstance(d, bool):
                        d = True if d == 0 else False
                    sh.append((c, d))
            except:
                # Ignore invalid tweak values as users seem to often get them
                # wrong
                print(
                    'Ignoring invalid sort_columns_at_startup tweak, with error:'
                )
                import traceback
                traceback.print_exc()
            old_state['sort_history'] = sh
            max_levels = max(3, len(sh))

        self.column_header.blockSignals(True)
        self.apply_state(old_state, max_sort_levels=max_levels)
        self.column_header.blockSignals(False)

        self.do_row_sizing()

        self.was_restored = True

    def refresh_row_sizing(self):
        self.row_sizing_done = False
        self.do_row_sizing()

    def do_row_sizing(self):
        # Resize all rows to have the correct height
        if not self.row_sizing_done and self.model().rowCount(
                QModelIndex()) > 0:
            self.resizeRowToContents(0)
            self.verticalHeader().setDefaultSectionSize(
                self.rowHeight(0) + gprefs['extra_row_spacing'])
            self._model.set_row_height(self.rowHeight(0))
            self.row_sizing_done = True

    def resize_column_to_fit(self, column):
        col = self.column_map.index(column)
        self.column_resized(col, self.columnWidth(col), self.columnWidth(col))

    def column_resized(self, col, old_size, new_size):
        # arbitrary: scroll bar + header + some
        max_width = self.width() - (self.verticalScrollBar().width() +
                                    self.verticalHeader().width() + 10)
        if max_width < 200:
            max_width = 200
        if new_size > max_width:
            self.column_header.blockSignals(True)
            self.setColumnWidth(col, max_width)
            self.column_header.blockSignals(False)

    # }}}

    # Initialization/Delegate Setup {{{

    def set_database(self, db):
        self.alternate_views.set_database(db)
        self.save_state()
        self._model.set_database(db)
        self.tags_delegate.set_database(db)
        self.cc_names_delegate.set_database(db)
        self.authors_delegate.set_database(db)
        self.series_delegate.set_auto_complete_function(db.all_series)
        self.publisher_delegate.set_auto_complete_function(db.all_publishers)
        self.alternate_views.set_database(db, stage=1)

    def marked_changed(self, old_marked, current_marked):
        self.alternate_views.marked_changed(old_marked, current_marked)
        if bool(old_marked) == bool(current_marked):
            changed = old_marked | current_marked
            i = self.model().db.data.id_to_index

            def f(x):
                try:
                    return i(x)
                except ValueError:
                    pass

            sections = tuple(x for x in map(f, changed) if x is not None)
            if sections:
                self.row_header.headerDataChanged(Qt.Vertical, min(sections),
                                                  max(sections))
        else:
            # Marked items have either appeared or all been removed
            self.model().set_row_decoration(current_marked)
            self.row_header.headerDataChanged(Qt.Vertical, 0,
                                              self.row_header.count() - 1)
            self.row_header.geometriesChanged.emit()

    def database_changed(self, db):
        db.data.add_marked_listener(self.marked_changed_listener)
        for i in range(self.model().columnCount(None)):
            if self.itemDelegateForColumn(i) in (self.rating_delegate,
                                                 self.timestamp_delegate,
                                                 self.pubdate_delegate,
                                                 self.last_modified_delegate,
                                                 self.languages_delegate):
                self.setItemDelegateForColumn(i, self.itemDelegate())

        cm = self.column_map

        for colhead in cm:
            if self._model.is_custom_column(colhead):
                cc = self._model.custom_columns[colhead]
                if cc['datatype'] == 'datetime':
                    delegate = CcDateDelegate(self)
                    delegate.set_format(cc['display'].get('date_format', ''))
                    self.setItemDelegateForColumn(cm.index(colhead), delegate)
                elif cc['datatype'] == 'comments':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_comments_delegate)
                elif cc['datatype'] == 'text':
                    if cc['is_multiple']:
                        if cc['display'].get('is_names', False):
                            self.setItemDelegateForColumn(
                                cm.index(colhead), self.cc_names_delegate)
                        else:
                            self.setItemDelegateForColumn(
                                cm.index(colhead), self.tags_delegate)
                    else:
                        self.setItemDelegateForColumn(cm.index(colhead),
                                                      self.cc_text_delegate)
                elif cc['datatype'] == 'series':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_text_delegate)
                elif cc['datatype'] in ('int', 'float'):
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_number_delegate)
                elif cc['datatype'] == 'bool':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_bool_delegate)
                elif cc['datatype'] == 'rating':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.rating_delegate)
                elif cc['datatype'] == 'composite':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_template_delegate)
                elif cc['datatype'] == 'enumeration':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_enum_delegate)
            else:
                dattr = colhead + '_delegate'
                delegate = colhead if hasattr(self, dattr) else 'text'
                self.setItemDelegateForColumn(
                    cm.index(colhead), getattr(self, delegate + '_delegate'))

        self.restore_state()
        self.set_ondevice_column_visibility()
        #}}}

    # Context Menu {{{
    def set_context_menu(self, menu, edit_collections_action):
        self.setContextMenuPolicy(Qt.DefaultContextMenu)
        self.context_menu = menu
        self.alternate_views.set_context_menu(menu)
        self.edit_collections_action = edit_collections_action

    def contextMenuEvent(self, event):
        sac = self.gui.iactions['Sort By']
        sort_added = tuple(ac for ac in self.context_menu.actions()
                           if ac is sac.qaction)
        if sort_added:
            sac.update_menu()
        self.context_menu.popup(event.globalPos())
        event.accept()

    # }}}

    @property
    def column_map(self):
        return self._model.column_map

    @property
    def visible_columns(self):
        h = self.horizontalHeader()
        logical_indices = (x for x in xrange(h.count())
                           if not h.isSectionHidden(x))
        rmap = {i: x for i, x in enumerate(self.column_map)}
        return (rmap[h.visualIndex(x)] for x in logical_indices
                if h.visualIndex(x) > -1)

    def refresh_book_details(self):
        idx = self.currentIndex()
        if idx.isValid():
            self._model.current_changed(idx, idx)
            return True
        return False

    def scrollContentsBy(self, dx, dy):
        # Needed as Qt bug causes headerview to not always update when scrolling
        QTableView.scrollContentsBy(self, dx, dy)
        if dy != 0:
            self.column_header.update()

    def scroll_to_row(self, row):
        if row > -1:
            h = self.horizontalHeader()
            for i in range(h.count()):
                if not h.isSectionHidden(
                        i) and h.sectionViewportPosition(i) >= 0:
                    self.scrollTo(self.model().index(row, i),
                                  self.PositionAtCenter)
                    break

    @property
    def current_book(self):
        ci = self.currentIndex()
        if ci.isValid():
            try:
                return self.model().db.data.index_to_id(ci.row())
            except (IndexError, ValueError, KeyError, TypeError,
                    AttributeError):
                pass

    def current_book_state(self):
        return self.current_book, self.horizontalScrollBar().value()

    def restore_current_book_state(self, state):
        book_id, hpos = state
        try:
            row = self.model().db.data.id_to_index(book_id)
        except (IndexError, ValueError, KeyError, TypeError, AttributeError):
            return
        self.set_current_row(row)
        self.scroll_to_row(row)
        self.horizontalScrollBar().setValue(hpos)

    def set_current_row(self, row=0, select=True, for_sync=False):
        if row > -1 and row < self.model().rowCount(QModelIndex()):
            h = self.horizontalHeader()
            logical_indices = list(range(h.count()))
            logical_indices = [
                x for x in logical_indices if not h.isSectionHidden(x)
            ]
            pairs = [(x, h.visualIndex(x)) for x in logical_indices
                     if h.visualIndex(x) > -1]
            if not pairs:
                pairs = [(0, 0)]
            pairs.sort(cmp=lambda x, y: cmp(x[1], y[1]))
            i = pairs[0][0]
            index = self.model().index(row, i)
            if for_sync:
                sm = self.selectionModel()
                sm.setCurrentIndex(index, sm.NoUpdate)
            else:
                self.setCurrentIndex(index)
                if select:
                    sm = self.selectionModel()
                    sm.select(index, sm.ClearAndSelect | sm.Rows)

    def row_at_top(self):
        pos = 0
        while pos < 100:
            ans = self.rowAt(pos)
            if ans > -1:
                return ans
            pos += 5

    def row_at_bottom(self):
        pos = self.viewport().height()
        limit = pos - 100
        while pos > limit:
            ans = self.rowAt(pos)
            if ans > -1:
                return ans
            pos -= 5

    def moveCursor(self, action, modifiers):
        orig = self.currentIndex()
        index = QTableView.moveCursor(self, action, modifiers)
        if action == QTableView.MovePageDown:
            moved = index.row() - orig.row()
            try:
                rows = self.row_at_bottom() - self.row_at_top()
            except TypeError:
                rows = moved
            if moved > rows:
                index = self.model().index(orig.row() + rows, index.column())
        elif action == QTableView.MovePageUp:
            moved = orig.row() - index.row()
            try:
                rows = self.row_at_bottom() - self.row_at_top()
            except TypeError:
                rows = moved
            if moved > rows:
                index = self.model().index(orig.row() - rows, index.column())
        elif action == QTableView.MoveHome and modifiers & Qt.ControlModifier:
            return self.model().index(0, orig.column())
        elif action == QTableView.MoveEnd and modifiers & Qt.ControlModifier:
            return self.model().index(self.model().rowCount(QModelIndex()) - 1,
                                      orig.column())
        return index

    def ids_to_rows(self, ids):
        row_map = OrderedDict()
        ids = frozenset(ids)
        m = self.model()
        for row in xrange(m.rowCount(QModelIndex())):
            if len(row_map) >= len(ids):
                break
            c = m.id(row)
            if c in ids:
                row_map[c] = row
        return row_map

    def select_rows(self,
                    identifiers,
                    using_ids=True,
                    change_current=True,
                    scroll=True):
        '''
        Select rows identified by identifiers. identifiers can be a set of ids,
        row numbers or QModelIndexes.
        '''
        rows = set([x.row() if hasattr(x, 'row') else x for x in identifiers])
        if using_ids:
            rows = set([])
            identifiers = set(identifiers)
            m = self.model()
            for row in xrange(m.rowCount(QModelIndex())):
                if m.id(row) in identifiers:
                    rows.add(row)
        rows = list(sorted(rows))
        if rows:
            row = rows[0]
            if change_current:
                self.set_current_row(row, select=False)
            if scroll:
                self.scroll_to_row(row)
        sm = self.selectionModel()
        sel = QItemSelection()
        m = self.model()
        max_col = m.columnCount(QModelIndex()) - 1
        # Create a range based selector for each set of contiguous rows
        # as supplying selectors for each individual row causes very poor
        # performance if a large number of rows has to be selected.
        for k, g in itertools.groupby(enumerate(rows), lambda (i, x): i - x):
            group = list(map(operator.itemgetter(1), g))
            sel.merge(
                QItemSelection(m.index(min(group), 0),
                               m.index(max(group), max_col)), sm.Select)
        sm.select(sel, sm.ClearAndSelect)
Exemple #37
0
class ImageManager(QWidget):
    """An ImageManager manages a stack of images (and associated ImageControllers)"""
    def __init__(self, *args):
        QWidget.__init__(self, *args)
        # init layout
        self._lo = QVBoxLayout(self)
        self._lo.setContentsMargins(0, 0, 0, 0)
        self._lo.setSpacing(0)
        # init internal state
        self._currier = PersistentCurrier()
        self._z0 = 0
        # z-depth of first image, the rest count down from it
        self._updating_imap = False
        self._locked_display_range = False
        self._imagecons = []
        self._imagecon_loadorder = []
        self._center_image = None
        self._plot = None
        self._border_pen = None
        self._drawing_key = None
        self._load_image_dialog = None
        self._model_imagecons = set()
        # init menu and standard actions
        self._menu = QMenu("&Image", self)
        qag = QActionGroup(self)
        # exclusive controls for plotting topmost or all images
        self._qa_plot_top = qag.addAction("Display topmost image only")
        self._qa_plot_all = qag.addAction("Display all images")
        self._qa_plot_top.setCheckable(True)
        self._qa_plot_all.setCheckable(True)
        self._qa_plot_top.setChecked(True)
        QObject.connect(self._qa_plot_all, SIGNAL("toggled(bool)"),
                        self._displayAllImages)
        self._closing = False

        self._qa_load_clipboard = None
        self._clipboard_mode = QClipboard.Clipboard
        QObject.connect(QApplication.clipboard(),
                        SIGNAL("changed(QClipboard::Mode)"),
                        self._checkClipboardPath)
        # populate the menu
        self._repopulateMenu()

    def close(self):
        dprint(1, "closing Manager")
        self._closing = True
        for ic in self._imagecons:
            ic.close()

    def loadImage(self,
                  filename=None,
                  duplicate=True,
                  to_top=True,
                  model=None):
        """Loads image. Returns ImageControlBar object.
        If image is already loaded: returns old ICB if duplicate=False (raises to top if to_top=True),
        or else makes a new control bar.
        If model is set to a source name, marks the image as associated with a model source. These can be unloaded en masse by calling
        unloadModelImages().
        """
        if filename is None:
            if not self._load_image_dialog:
                dialog = self._load_image_dialog = QFileDialog(
                    self, "Load FITS image", ".",
                    "FITS images (%s);;All files (*)" %
                    (" ".join(["*" + ext for ext in FITS_ExtensionList])))
                dialog.setFileMode(QFileDialog.ExistingFile)
                dialog.setModal(True)
                QObject.connect(dialog,
                                SIGNAL("filesSelected(const QStringList &)"),
                                self.loadImage)
            self._load_image_dialog.exec_()
            return None
        if isinstance(filename, QStringList):
            filename = filename[0]
        filename = str(filename)
        # report error if image does not exist
        if not os.path.exists(filename):
            self.showErrorMessage("""FITS image %s does not exist.""" %
                                  filename)
            return None
        # see if image is already loaded
        if not duplicate:
            for ic in self._imagecons:
                if ic.getFilename() and os.path.samefile(
                        filename, ic.getFilename()):
                    if to_top:
                        self.raiseImage(ic)
                    if model:
                        self._model_imagecons.add(id(ic))
                    return ic
        # load the FITS image
        busy = BusyIndicator()
        dprint(2, "reading FITS image", filename)
        self.showMessage("""Reading FITS image %s""" % filename, 3000)
        QApplication.flush()
        try:
            image = SkyImage.FITSImagePlotItem(str(filename))
        except KeyboardInterrupt:
            raise
        except:
            busy = None
            traceback.print_exc()
            self.showErrorMessage(
                """<P>Error loading FITS image %s: %s. This may be due to a bug in Tigger; if the FITS file loads fine in another viewer,
          please send the FITS file, along with a copy of any error messages from the text console, to [email protected].</P>"""
                % (filename, str(sys.exc_info()[1])))
            return None
        # create control bar, add to widget stack
        ic = self._createImageController(image,
                                         "model source '%s'" %
                                         model if model else filename,
                                         model or image.name,
                                         model=model)
        self.showMessage("""Loaded FITS image %s""" % filename, 3000)
        dprint(2, "image loaded")
        return ic

    def showMessage(self, message, time=None):
        self.emit(SIGNAL("showMessage"), message, time)

    def showErrorMessage(self, message, time=None):
        self.emit(SIGNAL("showErrorMessage"), message, time)

    def setZ0(self, z0):
        self._z0 = z0
        if self._imagecons:
            self.raiseImage(self._imagecons[0])

    def enableImageBorders(self, border_pen, label_color, label_bg_brush):
        self._border_pen, self._label_color, self._label_bg_brush = \
            border_pen, label_color, label_bg_brush

    def lockAllDisplayRanges(self, rc0):
        """Locks all display ranges, and sets the intensity from rc0"""
        if not self._updating_imap:
            self._updating_imap = True
            rc0.lockDisplayRange()
            try:
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc0:
                        rc1.setDisplayRange(*rc0.displayRange())
                        rc1.lockDisplayRange()
            finally:
                self._updating_imap = False

    def unlockAllDisplayRanges(self):
        """Unlocks all display range."""
        for ic in self._imagecons:
            ic.renderControl().lockDisplayRange(False)

    def _lockDisplayRange(self, rc0, lock):
        """Locks or unlocks the display range of a specific controller."""
        if lock and not self._updating_imap:
            self._updating_imap = True
            try:
                # if something is already locked, copy display range from it
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc0 and rc1.isDisplayRangeLocked():
                        rc0.setDisplayRange(*rc1.displayRange())
            finally:
                self._updating_imap = False

    def _updateDisplayRange(self, rc, dmin, dmax):
        """This is called whenever one of the images (or rather, its associated RenderControl object) changes its display range."""
        if not rc.isDisplayRangeLocked():
            return
        # If the display range is locked, propagate it to all images.
        # but don't do it if we're already propagating (otherwise we may get called in an infinte loop)
        if not self._updating_imap:
            self._updating_imap = True
            try:
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc and rc1.isDisplayRangeLocked():
                        rc1.setDisplayRange(dmin, dmax)
            finally:
                self._updating_imap = False

    def getImages(self):
        return [ic.image for ic in self._imagecons]

    def getTopImage(self):
        return (self._imagecons or None) and self._imagecons[0].image

    def cycleImages(self):
        index = self._imagecon_loadorder.index(self._imagecons[0])
        index = (index + 1) % len(self._imagecon_loadorder)
        self.raiseImage(self._imagecon_loadorder[index])

    def blinkImages(self):
        if len(self._imagecons) > 1:
            self.raiseImage(self._imagecons[1])

    def incrementSlice(self, extra_axis, incr):
        if self._imagecons:
            rc = self._imagecons[0].renderControl()
            sliced_axes = rc.slicedAxes()
            if extra_axis < len(sliced_axes):
                rc.incrementSlice(sliced_axes[extra_axis][0], incr)

    def setLMRectSubset(self, rect):
        if self._imagecons:
            self._imagecons[0].setLMRectSubset(rect)

    def getLMRectStats(self, rect):
        if self._imagecons:
            return self._imagecons[0].renderControl().getLMRectStats(rect)

    def unloadModelImages(self):
        """Unloads images associated with model (i.e. loaded with the model=True flag)"""
        for ic in [
                ic for ic in self._imagecons if id(ic) in self._model_imagecons
        ]:
            self.unloadImage(ic)

    def unloadImage(self, imagecon):
        """Unloads the given imagecon object."""
        if imagecon not in self._imagecons:
            return
        # recenter if needed
        self._imagecons.remove(imagecon)
        self._imagecon_loadorder.remove(imagecon)
        self._model_imagecons.discard(id(imagecon))
        # reparent widget and release it
        imagecon.setParent(None)
        imagecon.close()
        # recenter image, if unloaded the center image
        if self._center_image is imagecon.image:
            self.centerImage(self._imagecons[0] if self._imagecons else None,
                             emit=False)
        # emit signal
        self._repopulateMenu()
        self.emit(SIGNAL("imagesChanged"))
        if self._imagecons:
            self.raiseImage(self._imagecons[0])

    def getCenterImage(self):
        return self._center_image

    def centerImage(self, imagecon, emit=True):
        self._center_image = imagecon and imagecon.image
        for ic in self._imagecons:
            ic.setPlotProjection(self._center_image.projection)
        if emit:
            self.emit(SIGNAL("imagesChanged"))

    def raiseImage(self, imagecon):
        # reshuffle image stack, if more than one image image
        if len(self._imagecons) > 1:
            busy = BusyIndicator()
            # reshuffle image stack
            self._imagecons.remove(imagecon)
            self._imagecons.insert(0, imagecon)
            # notify imagecons
            for i, ic in enumerate(self._imagecons):
                label = "%d" % (i + 1) if i else "<B>1</B>"
                ic.setZ(self._z0 - i * 10,
                        top=not i,
                        depthlabel=label,
                        can_raise=True)
            # adjust visibility
            for j, ic in enumerate(self._imagecons):
                ic.setImageVisible(not j
                                   or bool(self._qa_plot_all.isChecked()))
            # issue replot signal
            self.emit(SIGNAL("imageRaised"))
            self.fastReplot()
        # else simply update labels
        else:
            self._imagecons[0].setZ(self._z0,
                                    top=True,
                                    depthlabel=None,
                                    can_raise=False)
            self._imagecons[0].setImageVisible(True)
        # update slice menus
        img = imagecon.image
        axes = imagecon.renderControl().slicedAxes()
        for i, (next, prev) in enumerate(self._qa_slices):
            next.setVisible(False)
            prev.setVisible(False)
            if i < len(axes):
                iaxis, name, labels = axes[i]
                next.setVisible(True)
                prev.setVisible(True)
                next.setText("Show next slice along %s axis" % name)
                prev.setText("Show previous slice along %s axis" % name)
        # emit signasl
        self.emit(SIGNAL("imageRaised"), img)

    def resetDrawKey(self):
        """Makes and sets the current plot's drawing key"""
        if self._plot:
            key = []
            for ic in self._imagecons:
                key.append(id(ic))
                key += ic.currentSlice()
                self._plot.setDrawingKey(tuple(key))

    def fastReplot(self, *dum):
        """Fast replot -- called when flipping images or slices. Uses the plot cache, if possible."""
        if self._plot:
            self.resetDrawKey()
            dprint(2, "calling replot", time.time() % 60)
            self._plot.replot()
            dprint(2, "replot done", time.time() % 60)

    def replot(self, *dum):
        """Proper replot -- called when an image needs to be properly redrawn. Cleares the plot's drawing cache."""
        if self._plot:
            self._plot.clearDrawCache()
            self.resetDrawKey()
            self._plot.replot()

    def attachImagesToPlot(self, plot):
        self._plot = plot
        self.resetDrawKey()
        for ic in self._imagecons:
            ic.attachToPlot(plot)

    def getMenu(self):
        return self._menu

    def _displayAllImages(self, enabled):
        busy = BusyIndicator()
        if enabled:
            for ic in self._imagecons:
                ic.setImageVisible(True)
        else:
            self._imagecons[0].setImageVisible(True)
            for ic in self._imagecons[1:]:
                ic.setImageVisible(False)
        self.replot()

    def _checkClipboardPath(self, mode=QClipboard.Clipboard):
        if self._qa_load_clipboard:
            self._clipboard_mode = mode
            try:
                path = str(QApplication.clipboard().text(mode))
            except:
                path = None
            self._qa_load_clipboard.setEnabled(
                bool(path and os.path.isfile(path)))

    def _loadClipboardPath(self):
        try:
            path = QApplication.clipboard().text(self._clipboard_mode)
        except:
            return
        self.loadImage(path)

    def _repopulateMenu(self):
        self._menu.clear()
        self._menu.addAction("&Load image...", self.loadImage,
                             Qt.CTRL + Qt.Key_L)
        self._menu.addAction("&Compute image...", self.computeImage,
                             Qt.CTRL + Qt.Key_M)
        self._qa_load_clipboard = self._menu.addAction(
            "Load from clipboard &path", self._loadClipboardPath,
            Qt.CTRL + Qt.Key_P)
        self._checkClipboardPath()
        if self._imagecons:
            self._menu.addSeparator()
            # add controls to cycle images and planes
            for i, imgcon in enumerate(self._imagecons[::-1]):
                self._menu.addMenu(imgcon.getMenu())
            self._menu.addSeparator()
            if len(self._imagecons) > 1:
                self._menu.addAction("Cycle images", self.cycleImages,
                                     Qt.Key_F5)
                self._menu.addAction("Blink images", self.blinkImages,
                                     Qt.Key_F6)
            self._qa_slices = ((self._menu.addAction(
                "Next slice along axis 1",
                self._currier.curry(self.incrementSlice, 0, 1), Qt.Key_F7),
                                self._menu.addAction(
                                    "Previous slice along axis 1",
                                    self._currier.curry(
                                        self.incrementSlice, 0, -1),
                                    Qt.SHIFT + Qt.Key_F7)),
                               (self._menu.addAction(
                                   "Next slice along axis 2",
                                   self._currier.curry(self.incrementSlice, 1,
                                                       1), Qt.Key_F8),
                                self._menu.addAction(
                                    "Previous slice along axis 2",
                                    self._currier.curry(
                                        self.incrementSlice, 1, -1),
                                    Qt.SHIFT + Qt.Key_F8)))
            self._menu.addSeparator()
            self._menu.addAction(self._qa_plot_top)
            self._menu.addAction(self._qa_plot_all)

    def computeImage(self, expression=None):
        """Computes image from expression (if expression is None, pops up dialog)"""
        if expression is None:
            (expression, ok) = QInputDialog.getText(
                self, "Compute image", """Enter an image expression to compute.
                                              Any valid numpy expression is supported, and
                                              all functions from the numpy module are available (including sub-modules such as fft).
                                              Use 'a', 'b', 'c' to refer to images.
                                              Examples:  "(a+b)/2", "cos(a)+sin(b)", "a-a.mean()", "fft.fft2(a)", etc."""
            )
            #      (expression,ok) = QInputDialog.getText(self,"Compute image","""<P>Enter an expression to compute.
            #        Use 'a', 'b', etc. to refer to loaded images. Any valid numpy expression is supported, and all the
            #       functions from the numpy module are available. Examples of valid expressions include "(a+b)/2",
            #       "cos(a)+sin(b)", "a-a.mean()", etc.
            #        </P>
            #      """)
            expression = str(expression)
            if not ok or not expression:
                return
        # try to parse expression
        arglist = [(chr(ord('a') + ic.getNumber()), ic.image)
                   for ic in self._imagecons]
        try:
            exprfunc = eval(
                "lambda " + (",".join([x[0]
                                       for x in arglist])) + ":" + expression,
                numpy.__dict__, {})
        except Exception as exc:
            self.showErrorMessage("""Error parsing expression "%s": %s.""" %
                                  (expression, str(exc)))
            return None
        # try to evaluate expression
        self.showMessage("Computing expression \"%s\"" % expression, 10000)
        busy = BusyIndicator()
        QApplication.flush()

        # trim trivial trailing dimensions. This avoids the problem of when an NxMx1 and an NxMx1x1 arrays are added,
        # the result is promoted to NxMxMx1 following the numpy rules.
        def trimshape(shape):
            out = shape
            while out and out[-1] == 1:
                out = out[:-1]
            return out

        def trimarray(array):
            return array.reshape(trimshape(array.shape))

        try:
            result = exprfunc(*[trimarray(x[1].data()) for x in arglist])
        except Exception as exc:
            busy = None
            traceback.print_exc()
            self.showErrorMessage("""Error evaluating "%s": %s.""" %
                                  (expression, str(exc)))
            return None
        busy = None
        if type(result) != numpy.ma.masked_array and type(
                result) != numpy.ndarray:
            self.showErrorMessage(
                """Result of "%s" is of invalid type "%s" (array expected)."""
                % (expression, type(result).__name__))
            return None
        # convert coomplex results to real
        if numpy.iscomplexobj(result):
            self.showErrorMessage(
                """Result of "%s" is complex. Complex images are currently
      not fully supported, so we'll implicitly use the absolute value instead."""
                % (expression))
            expression = "abs(%s)" % expression
            result = abs(result)
        # determine which image this expression can be associated with
        res_shape = trimshape(result.shape)
        arglist = [
            x for x in arglist if hasattr(x[1], 'fits_header')
            and trimshape(x[1].data().shape) == res_shape
        ]
        if not arglist:
            self.showErrorMessage(
                """Result of "%s" has shape %s, which does not match any loaded FITS image."""
                % (expression, "x".join(map(str, result.shape))))
            return None
        # look for an image in the arglist with the same projection, and with a valid dirname
        # (for the where-to-save hint)
        template = arglist[0][1]
        # if all images in arglist have the same projection, then it doesn't matter what we use
        # else ask
        if len(
            [x for x in arglist[1:] if x[1].projection == template.projection
             ]) != len(arglist) - 1:
            options = [x[0] for x in arglist]
            (which, ok) = QInputDialog.getItem(
                self, "Compute image",
                "Coordinate system to use for the result of \"%s\":" %
                expression, options, 0, False)
            if not ok:
                return None
            try:
                template = arglist[options.index(which)][1]
            except:
                pass
        # create a FITS image
        busy = BusyIndicator()
        dprint(2, "creating FITS image", expression)
        self.showMessage("""Creating image for %s""" % expression, 3000)
        QApplication.flush()
        try:
            hdu = pyfits.PrimaryHDU(result.transpose(), template.fits_header)
            skyimage = SkyImage.FITSImagePlotItem(name=expression,
                                                  filename=None,
                                                  hdu=hdu)
        except:
            busy = None
            traceback.print_exc()
            self.showErrorMessage("""Error creating FITS image %s: %s""" %
                                  (expression, str(sys.exc_info()[1])))
            return None
        # get directory name for save-to hint
        dirname = getattr(template, 'filename', None)
        if not dirname:
            dirnames = [
                getattr(img, 'filename') for x, img in arglist
                if hasattr(img, 'filename')
            ]
            dirname = dirnames[0] if dirnames else None
        # create control bar, add to widget stack
        self._createImageController(
            skyimage,
            expression,
            expression,
            save=((dirname and os.path.dirname(dirname)) or "."))
        self.showMessage("Created new image for %s" % expression, 3000)
        dprint(2, "image created")

    def _createImageController(self,
                               image,
                               name,
                               basename,
                               model=False,
                               save=False):
        dprint(2, "creating ImageController for", name)
        ic = ImageController(image, self, self, name, save=save)
        ic.setNumber(len(self._imagecons))
        self._imagecons.insert(0, ic)
        self._imagecon_loadorder.append(ic)
        if model:
            self._model_imagecons.add(id(ic))
        self._lo.addWidget(ic)
        if self._border_pen:
            ic.addPlotBorder(self._border_pen, basename, self._label_color,
                             self._label_bg_brush)
        # attach appropriate signals
        image.connect(SIGNAL("slice"), self.fastReplot)
        image.connect(SIGNAL("repaint"), self.replot)
        image.connect(SIGNAL("raise"),
                      self._currier.curry(self.raiseImage, ic))
        image.connect(SIGNAL("unload"),
                      self._currier.curry(self.unloadImage, ic))
        image.connect(SIGNAL("center"),
                      self._currier.curry(self.centerImage, ic))
        QObject.connect(
            ic.renderControl(), SIGNAL("displayRangeChanged"),
            self._currier.curry(self._updateDisplayRange, ic.renderControl()))
        QObject.connect(
            ic.renderControl(), SIGNAL("displayRangeLocked"),
            self._currier.curry(self._lockDisplayRange, ic.renderControl()))
        self._plot = None
        # add to menus
        dprint(2, "repopulating menus")
        self._repopulateMenu()
        # center and raise to top of stack
        self.raiseImage(ic)
        if not self._center_image:
            self.centerImage(ic, emit=False)
        else:
            ic.setPlotProjection(self._center_image.projection)
        # signal
        self.emit(SIGNAL("imagesChanged"))
        return ic
Exemple #38
0
class ImageManager(QWidget):
    """An ImageManager manages a stack of images (and associated ImageControllers)"""

    def __init__(self, *args):
        QWidget.__init__(self, *args)
        # init layout
        self._lo = QVBoxLayout(self)
        self._lo.setContentsMargins(0, 0, 0, 0)
        self._lo.setSpacing(0)
        # init internal state
        self._currier = PersistentCurrier()
        self._z0 = 0;  # z-depth of first image, the rest count down from it
        self._updating_imap = False
        self._locked_display_range = False
        self._imagecons = []
        self._imagecon_loadorder = []
        self._center_image = None
        self._plot = None
        self._border_pen = None
        self._drawing_key = None
        self._load_image_dialog = None
        self._model_imagecons = set()
        # init menu and standard actions
        self._menu = QMenu("&Image", self)
        qag = QActionGroup(self)
        # exclusive controls for plotting topmost or all images
        self._qa_plot_top = qag.addAction("Display topmost image only")
        self._qa_plot_all = qag.addAction("Display all images")
        self._qa_plot_top.setCheckable(True)
        self._qa_plot_all.setCheckable(True)
        self._qa_plot_top.setChecked(True)
        QObject.connect(self._qa_plot_all, SIGNAL("toggled(bool)"), self._displayAllImages)
        self._closing = False

        self._qa_load_clipboard = None
        self._clipboard_mode = QClipboard.Clipboard
        QObject.connect(QApplication.clipboard(), SIGNAL("changed(QClipboard::Mode)"), self._checkClipboardPath)
        # populate the menu
        self._repopulateMenu()

    def close(self):
        dprint(1, "closing Manager")
        self._closing = True
        for ic in self._imagecons:
            ic.close()

    def loadImage(self, filename=None, duplicate=True, to_top=True, model=None):
        """Loads image. Returns ImageControlBar object.
        If image is already loaded: returns old ICB if duplicate=False (raises to top if to_top=True),
        or else makes a new control bar.
        If model is set to a source name, marks the image as associated with a model source. These can be unloaded en masse by calling
        unloadModelImages().
        """
        if filename is None:
            if not self._load_image_dialog:
                dialog = self._load_image_dialog = QFileDialog(self, "Load FITS image", ".",
                                                               "FITS images (%s);;All files (*)" % (" ".join(
                                                                   ["*" + ext for ext in FITS_ExtensionList])))
                dialog.setFileMode(QFileDialog.ExistingFile)
                dialog.setModal(True)
                QObject.connect(dialog, SIGNAL("filesSelected(const QStringList &)"), self.loadImage)
            self._load_image_dialog.exec_()
            return None
        if isinstance(filename, QStringList):
            filename = filename[0]
        filename = str(filename)
        # report error if image does not exist
        if not os.path.exists(filename):
            self.showErrorMessage("""FITS image %s does not exist.""" % filename)
            return None
        # see if image is already loaded
        if not duplicate:
            for ic in self._imagecons:
                if ic.getFilename() and os.path.samefile(filename, ic.getFilename()):
                    if to_top:
                        self.raiseImage(ic)
                    if model:
                        self._model_imagecons.add(id(ic))
                    return ic
        # load the FITS image
        busy = BusyIndicator()
        dprint(2, "reading FITS image", filename)
        self.showMessage("""Reading FITS image %s""" % filename, 3000)
        QApplication.flush()
        try:
            image = SkyImage.FITSImagePlotItem(str(filename))
        except KeyboardInterrupt:
            raise
        except:
            busy = None
            traceback.print_exc()
            self.showErrorMessage("""<P>Error loading FITS image %s: %s. This may be due to a bug in Tigger; if the FITS file loads fine in another viewer,
          please send the FITS file, along with a copy of any error messages from the text console, to [email protected].</P>""" % (
            filename, str(sys.exc_info()[1])))
            return None
        # create control bar, add to widget stack
        ic = self._createImageController(image, "model source '%s'" % model if model else filename, model or image.name,
                                         model=model)
        self.showMessage("""Loaded FITS image %s""" % filename, 3000)
        dprint(2, "image loaded")
        return ic

    def showMessage(self, message, time=None):
        self.emit(SIGNAL("showMessage"), message, time)

    def showErrorMessage(self, message, time=None):
        self.emit(SIGNAL("showErrorMessage"), message, time)

    def setZ0(self, z0):
        self._z0 = z0
        if self._imagecons:
            self.raiseImage(self._imagecons[0])

    def enableImageBorders(self, border_pen, label_color, label_bg_brush):
        self._border_pen, self._label_color, self._label_bg_brush = \
            border_pen, label_color, label_bg_brush

    def lockAllDisplayRanges(self, rc0):
        """Locks all display ranges, and sets the intensity from rc0"""
        if not self._updating_imap:
            self._updating_imap = True
            rc0.lockDisplayRange()
            try:
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc0:
                        rc1.setDisplayRange(*rc0.displayRange())
                        rc1.lockDisplayRange()
            finally:
                self._updating_imap = False

    def unlockAllDisplayRanges(self):
        """Unlocks all display range."""
        for ic in self._imagecons:
            ic.renderControl().lockDisplayRange(False)

    def _lockDisplayRange(self, rc0, lock):
        """Locks or unlocks the display range of a specific controller."""
        if lock and not self._updating_imap:
            self._updating_imap = True
            try:
                # if something is already locked, copy display range from it
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc0 and rc1.isDisplayRangeLocked():
                        rc0.setDisplayRange(*rc1.displayRange())
            finally:
                self._updating_imap = False

    def _updateDisplayRange(self, rc, dmin, dmax):
        """This is called whenever one of the images (or rather, its associated RenderControl object) changes its display range."""
        if not rc.isDisplayRangeLocked():
            return
        # If the display range is locked, propagate it to all images.
        # but don't do it if we're already propagating (otherwise we may get called in an infinte loop)
        if not self._updating_imap:
            self._updating_imap = True
            try:
                for ic in self._imagecons:
                    rc1 = ic.renderControl()
                    if rc1 is not rc and rc1.isDisplayRangeLocked():
                        rc1.setDisplayRange(dmin, dmax)
            finally:
                self._updating_imap = False

    def getImages(self):
        return [ic.image for ic in self._imagecons]

    def getTopImage(self):
        return (self._imagecons or None) and self._imagecons[0].image

    def cycleImages(self):
        index = self._imagecon_loadorder.index(self._imagecons[0])
        index = (index + 1) % len(self._imagecon_loadorder)
        self.raiseImage(self._imagecon_loadorder[index])

    def blinkImages(self):
        if len(self._imagecons) > 1:
            self.raiseImage(self._imagecons[1])

    def incrementSlice(self, extra_axis, incr):
        if self._imagecons:
            rc = self._imagecons[0].renderControl()
            sliced_axes = rc.slicedAxes()
            if extra_axis < len(sliced_axes):
                rc.incrementSlice(sliced_axes[extra_axis][0], incr)

    def setLMRectSubset(self, rect):
        if self._imagecons:
            self._imagecons[0].setLMRectSubset(rect)

    def getLMRectStats(self, rect):
        if self._imagecons:
            return self._imagecons[0].renderControl().getLMRectStats(rect)

    def unloadModelImages(self):
        """Unloads images associated with model (i.e. loaded with the model=True flag)"""
        for ic in [ic for ic in self._imagecons if id(ic) in self._model_imagecons]:
            self.unloadImage(ic)

    def unloadImage(self, imagecon):
        """Unloads the given imagecon object."""
        if imagecon not in self._imagecons:
            return
        # recenter if needed
        self._imagecons.remove(imagecon)
        self._imagecon_loadorder.remove(imagecon)
        self._model_imagecons.discard(id(imagecon))
        # reparent widget and release it
        imagecon.setParent(None)
        imagecon.close()
        # recenter image, if unloaded the center image
        if self._center_image is imagecon.image:
            self.centerImage(self._imagecons[0] if self._imagecons else None, emit=False)
        # emit signal
        self._repopulateMenu()
        self.emit(SIGNAL("imagesChanged"))
        if self._imagecons:
            self.raiseImage(self._imagecons[0])

    def getCenterImage(self):
        return self._center_image

    def centerImage(self, imagecon, emit=True):
        self._center_image = imagecon and imagecon.image
        for ic in self._imagecons:
            ic.setPlotProjection(self._center_image.projection)
        if emit:
            self.emit(SIGNAL("imagesChanged"))

    def raiseImage(self, imagecon):
        # reshuffle image stack, if more than one image image
        if len(self._imagecons) > 1:
            busy = BusyIndicator()
            # reshuffle image stack
            self._imagecons.remove(imagecon)
            self._imagecons.insert(0, imagecon)
            # notify imagecons
            for i, ic in enumerate(self._imagecons):
                label = "%d" % (i + 1) if i else "<B>1</B>"
                ic.setZ(self._z0 - i * 10, top=not i, depthlabel=label, can_raise=True)
            # adjust visibility
            for j, ic in enumerate(self._imagecons):
                ic.setImageVisible(not j or bool(self._qa_plot_all.isChecked()))
            # issue replot signal
            self.emit(SIGNAL("imageRaised"))
            self.fastReplot()
        # else simply update labels
        else:
            self._imagecons[0].setZ(self._z0, top=True, depthlabel=None, can_raise=False)
            self._imagecons[0].setImageVisible(True)
        # update slice menus
        img = imagecon.image
        axes = imagecon.renderControl().slicedAxes()
        for i, (next, prev) in enumerate(self._qa_slices):
            next.setVisible(False)
            prev.setVisible(False)
            if i < len(axes):
                iaxis, name, labels = axes[i]
                next.setVisible(True)
                prev.setVisible(True)
                next.setText("Show next slice along %s axis" % name)
                prev.setText("Show previous slice along %s axis" % name)
        # emit signasl
        self.emit(SIGNAL("imageRaised"), img)

    def resetDrawKey(self):
        """Makes and sets the current plot's drawing key"""
        if self._plot:
            key = []
            for ic in self._imagecons:
                key.append(id(ic))
                key += ic.currentSlice()
                self._plot.setDrawingKey(tuple(key))

    def fastReplot(self, *dum):
        """Fast replot -- called when flipping images or slices. Uses the plot cache, if possible."""
        if self._plot:
            self.resetDrawKey()
            dprint(2, "calling replot", time.time() % 60)
            self._plot.replot()
            dprint(2, "replot done", time.time() % 60)

    def replot(self, *dum):
        """Proper replot -- called when an image needs to be properly redrawn. Cleares the plot's drawing cache."""
        if self._plot:
            self._plot.clearDrawCache()
            self.resetDrawKey()
            self._plot.replot()

    def attachImagesToPlot(self, plot):
        self._plot = plot
        self.resetDrawKey()
        for ic in self._imagecons:
            ic.attachToPlot(plot)

    def getMenu(self):
        return self._menu

    def _displayAllImages(self, enabled):
        busy = BusyIndicator()
        if enabled:
            for ic in self._imagecons:
                ic.setImageVisible(True)
        else:
            self._imagecons[0].setImageVisible(True)
            for ic in self._imagecons[1:]:
                ic.setImageVisible(False)
        self.replot()

    def _checkClipboardPath(self, mode=QClipboard.Clipboard):
        if self._qa_load_clipboard:
            self._clipboard_mode = mode
            try:
                path = str(QApplication.clipboard().text(mode))
            except:
                path = None
            self._qa_load_clipboard.setEnabled(bool(path and os.path.isfile(path)))

    def _loadClipboardPath(self):
        try:
            path = QApplication.clipboard().text(self._clipboard_mode)
        except:
            return
        self.loadImage(path)

    def _repopulateMenu(self):
        self._menu.clear()
        self._menu.addAction("&Load image...", self.loadImage, Qt.CTRL + Qt.Key_L)
        self._menu.addAction("&Compute image...", self.computeImage, Qt.CTRL + Qt.Key_M)
        self._qa_load_clipboard = self._menu.addAction("Load from clipboard &path", self._loadClipboardPath,
                                                       Qt.CTRL + Qt.Key_P)
        self._checkClipboardPath()
        if self._imagecons:
            self._menu.addSeparator()
            # add controls to cycle images and planes
            for i, imgcon in enumerate(self._imagecons[::-1]):
                self._menu.addMenu(imgcon.getMenu())
            self._menu.addSeparator()
            if len(self._imagecons) > 1:
                self._menu.addAction("Cycle images", self.cycleImages, Qt.Key_F5)
                self._menu.addAction("Blink images", self.blinkImages, Qt.Key_F6)
            self._qa_slices = (
            (self._menu.addAction("Next slice along axis 1", self._currier.curry(self.incrementSlice, 0, 1), Qt.Key_F7),
             self._menu.addAction("Previous slice along axis 1", self._currier.curry(self.incrementSlice, 0, -1),
                                  Qt.SHIFT + Qt.Key_F7)),
            (self._menu.addAction("Next slice along axis 2", self._currier.curry(self.incrementSlice, 1, 1), Qt.Key_F8),
             self._menu.addAction("Previous slice along axis 2", self._currier.curry(self.incrementSlice, 1, -1),
                                  Qt.SHIFT + Qt.Key_F8)))
            self._menu.addSeparator()
            self._menu.addAction(self._qa_plot_top)
            self._menu.addAction(self._qa_plot_all)

    def computeImage(self, expression=None):
        """Computes image from expression (if expression is None, pops up dialog)"""
        if expression is None:
            (expression, ok) = QInputDialog.getText(self, "Compute image",
                                                    """Enter an image expression to compute.
                                              Any valid numpy expression is supported, and
                                              all functions from the numpy module are available (including sub-modules such as fft).
                                              Use 'a', 'b', 'c' to refer to images.
                                              Examples:  "(a+b)/2", "cos(a)+sin(b)", "a-a.mean()", "fft.fft2(a)", etc.""")
            #      (expression,ok) = QInputDialog.getText(self,"Compute image","""<P>Enter an expression to compute.
            #        Use 'a', 'b', etc. to refer to loaded images. Any valid numpy expression is supported, and all the
            #       functions from the numpy module are available. Examples of valid expressions include "(a+b)/2",
            #       "cos(a)+sin(b)", "a-a.mean()", etc.
            #        </P>
            #      """)
            expression = str(expression)
            if not ok or not expression:
                return
        # try to parse expression
        arglist = [(chr(ord('a') + ic.getNumber()), ic.image) for ic in self._imagecons]
        try:
            exprfunc = eval("lambda " + (",".join([x[0] for x in arglist])) + ":" + expression,
                            numpy.__dict__, {})
        except Exception as exc:
            self.showErrorMessage("""Error parsing expression "%s": %s.""" % (expression, str(exc)))
            return None
        # try to evaluate expression
        self.showMessage("Computing expression \"%s\"" % expression, 10000)
        busy = BusyIndicator()
        QApplication.flush()

        # trim trivial trailing dimensions. This avoids the problem of when an NxMx1 and an NxMx1x1 arrays are added,
        # the result is promoted to NxMxMx1 following the numpy rules.
        def trimshape(shape):
            out = shape
            while out and out[-1] == 1:
                out = out[:-1]
            return out

        def trimarray(array):
            return array.reshape(trimshape(array.shape))

        try:
            result = exprfunc(*[trimarray(x[1].data()) for x in arglist])
        except Exception as exc:
            busy = None
            traceback.print_exc()
            self.showErrorMessage("""Error evaluating "%s": %s.""" % (expression, str(exc)))
            return None
        busy = None
        if type(result) != numpy.ma.masked_array and type(result) != numpy.ndarray:
            self.showErrorMessage(
                """Result of "%s" is of invalid type "%s" (array expected).""" % (expression, type(result).__name__))
            return None
        # convert coomplex results to real
        if numpy.iscomplexobj(result):
            self.showErrorMessage("""Result of "%s" is complex. Complex images are currently
      not fully supported, so we'll implicitly use the absolute value instead.""" % (expression))
            expression = "abs(%s)" % expression
            result = abs(result)
        # determine which image this expression can be associated with
        res_shape = trimshape(result.shape)
        arglist = [x for x in arglist if hasattr(x[1], 'fits_header') and trimshape(x[1].data().shape) == res_shape]
        if not arglist:
            self.showErrorMessage("""Result of "%s" has shape %s, which does not match any loaded FITS image.""" % (
            expression, "x".join(map(str, result.shape))))
            return None
        # look for an image in the arglist with the same projection, and with a valid dirname
        # (for the where-to-save hint)
        template = arglist[0][1]
        # if all images in arglist have the same projection, then it doesn't matter what we use
        # else ask
        if len([x for x in arglist[1:] if x[1].projection == template.projection]) != len(arglist) - 1:
            options = [x[0] for x in arglist]
            (which, ok) = QInputDialog.getItem(self, "Compute image",
                                               "Coordinate system to use for the result of \"%s\":" % expression,
                                               options, 0, False)
            if not ok:
                return None
            try:
                template = arglist[options.index(which)][1]
            except:
                pass
        # create a FITS image
        busy = BusyIndicator()
        dprint(2, "creating FITS image", expression)
        self.showMessage("""Creating image for %s""" % expression, 3000)
        QApplication.flush()
        try:
            hdu = pyfits.PrimaryHDU(result.transpose(), template.fits_header)
            skyimage = SkyImage.FITSImagePlotItem(name=expression, filename=None, hdu=hdu)
        except:
            busy = None
            traceback.print_exc()
            self.showErrorMessage("""Error creating FITS image %s: %s""" % (expression, str(sys.exc_info()[1])))
            return None
        # get directory name for save-to hint
        dirname = getattr(template, 'filename', None)
        if not dirname:
            dirnames = [getattr(img, 'filename') for x, img in arglist if hasattr(img, 'filename')]
            dirname = dirnames[0] if dirnames else None
        # create control bar, add to widget stack
        self._createImageController(skyimage, expression, expression,
                                    save=((dirname and os.path.dirname(dirname)) or "."))
        self.showMessage("Created new image for %s" % expression, 3000)
        dprint(2, "image created")

    def _createImageController(self, image, name, basename, model=False, save=False):
        dprint(2, "creating ImageController for", name)
        ic = ImageController(image, self, self, name, save=save)
        ic.setNumber(len(self._imagecons))
        self._imagecons.insert(0, ic)
        self._imagecon_loadorder.append(ic)
        if model:
            self._model_imagecons.add(id(ic))
        self._lo.addWidget(ic)
        if self._border_pen:
            ic.addPlotBorder(self._border_pen, basename, self._label_color, self._label_bg_brush)
        # attach appropriate signals
        image.connect(SIGNAL("slice"), self.fastReplot)
        image.connect(SIGNAL("repaint"), self.replot)
        image.connect(SIGNAL("raise"), self._currier.curry(self.raiseImage, ic))
        image.connect(SIGNAL("unload"), self._currier.curry(self.unloadImage, ic))
        image.connect(SIGNAL("center"), self._currier.curry(self.centerImage, ic))
        QObject.connect(ic.renderControl(), SIGNAL("displayRangeChanged"),
                        self._currier.curry(self._updateDisplayRange, ic.renderControl()))
        QObject.connect(ic.renderControl(), SIGNAL("displayRangeLocked"),
                        self._currier.curry(self._lockDisplayRange, ic.renderControl()))
        self._plot = None
        # add to menus
        dprint(2, "repopulating menus")
        self._repopulateMenu()
        # center and raise to top of stack
        self.raiseImage(ic)
        if not self._center_image:
            self.centerImage(ic, emit=False)
        else:
            ic.setPlotProjection(self._center_image.projection)
        # signal
        self.emit(SIGNAL("imagesChanged"))
        return ic
Exemple #39
0
class BooksView(QTableView):  # {{{

    files_dropped = pyqtSignal(object)
    add_column_signal = pyqtSignal()

    def viewportEvent(self, event):
        if (event.type() == event.ToolTip
                and not gprefs['book_list_tooltips']):
            return False
        return QTableView.viewportEvent(self, event)

    def __init__(self,
                 parent,
                 modelcls=BooksModel,
                 use_edit_metadata_dialog=True):
        QTableView.__init__(self, parent)
        self.setProperty('highlight_current_item', 150)
        self.row_sizing_done = False

        if not tweaks['horizontal_scrolling_per_column']:
            self.setHorizontalScrollMode(self.ScrollPerPixel)

        self.setEditTriggers(self.EditKeyPressed)
        if tweaks['doubleclick_on_library_view'] == 'edit_cell':
            self.setEditTriggers(self.DoubleClicked | self.editTriggers())
        elif tweaks['doubleclick_on_library_view'] == 'open_viewer':
            self.setEditTriggers(self.SelectedClicked | self.editTriggers())
            self.doubleClicked.connect(parent.iactions['View'].view_triggered)
        elif tweaks['doubleclick_on_library_view'] == 'edit_metadata':
            # Must not enable single-click to edit, or the field will remain
            # open in edit mode underneath the edit metadata dialog
            if use_edit_metadata_dialog:
                self.doubleClicked.connect(
                    partial(parent.iactions['Edit Metadata'].edit_metadata,
                            checked=False))
            else:
                self.setEditTriggers(self.DoubleClicked | self.editTriggers())

        self.drag_allowed = True
        self.setDragEnabled(True)
        self.setDragDropOverwriteMode(False)
        self.setDragDropMode(self.DragDrop)
        self.drag_start_pos = None
        self.setAlternatingRowColors(True)
        self.setSelectionBehavior(self.SelectRows)
        self.setShowGrid(False)
        self.setWordWrap(False)

        self.rating_delegate = RatingDelegate(self)
        self.timestamp_delegate = DateDelegate(self)
        self.pubdate_delegate = PubDateDelegate(self)
        self.last_modified_delegate = DateDelegate(
            self, tweak_name='gui_last_modified_display_format')
        self.languages_delegate = LanguagesDelegate(self)
        self.tags_delegate = CompleteDelegate(self, ',', 'all_tag_names')
        self.authors_delegate = CompleteDelegate(self, '&', 'all_author_names',
                                                 True)
        self.cc_names_delegate = CompleteDelegate(self, '&', 'all_custom',
                                                  True)
        self.series_delegate = TextDelegate(self)
        self.publisher_delegate = TextDelegate(self)
        self.text_delegate = TextDelegate(self)
        self.cc_text_delegate = CcTextDelegate(self)
        self.cc_enum_delegate = CcEnumDelegate(self)
        self.cc_bool_delegate = CcBoolDelegate(self)
        self.cc_comments_delegate = CcCommentsDelegate(self)
        self.cc_template_delegate = CcTemplateDelegate(self)
        self.cc_number_delegate = CcNumberDelegate(self)
        self.display_parent = parent
        self._model = modelcls(self)
        self.setModel(self._model)
        self._model.count_changed_signal.connect(self.do_row_sizing,
                                                 type=Qt.QueuedConnection)
        self.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.setSortingEnabled(True)
        self.selectionModel().currentRowChanged.connect(
            self._model.current_changed)
        self.preserve_state = partial(PreserveViewState, self)

        # {{{ Column Header setup
        self.can_add_columns = True
        self.was_restored = False
        self.column_header = HeaderView(Qt.Horizontal, self)
        self.setHorizontalHeader(self.column_header)
        self.column_header.setMovable(True)
        self.column_header.setClickable(True)
        self.column_header.sectionMoved.connect(self.save_state)
        self.column_header.setContextMenuPolicy(Qt.CustomContextMenu)
        self.column_header.customContextMenuRequested.connect(
            self.show_column_header_context_menu)
        self.column_header.sectionResized.connect(self.column_resized,
                                                  Qt.QueuedConnection)
        self.row_header = HeaderView(Qt.Vertical, self)
        self.setVerticalHeader(self.row_header)
        # }}}

        self._model.database_changed.connect(self.database_changed)
        hv = self.verticalHeader()
        hv.setClickable(True)
        hv.setCursor(Qt.PointingHandCursor)
        self.selected_ids = []
        self._model.about_to_be_sorted.connect(self.about_to_be_sorted)
        self._model.sorting_done.connect(self.sorting_done,
                                         type=Qt.QueuedConnection)

    # Column Header Context Menu {{{
    def column_header_context_handler(self, action=None, column=None):
        if not action or not column:
            return
        try:
            idx = self.column_map.index(column)
        except:
            return
        h = self.column_header

        if action == 'hide':
            h.setSectionHidden(idx, True)
        elif action == 'show':
            h.setSectionHidden(idx, False)
            if h.sectionSize(idx) < 3:
                sz = h.sectionSizeHint(idx)
                h.resizeSection(idx, sz)
        elif action == 'ascending':
            self.sortByColumn(idx, Qt.AscendingOrder)
        elif action == 'descending':
            self.sortByColumn(idx, Qt.DescendingOrder)
        elif action == 'defaults':
            self.apply_state(self.get_default_state())
        elif action == 'addcustcol':
            self.add_column_signal.emit()
        elif action.startswith('align_'):
            alignment = action.partition('_')[-1]
            self._model.change_alignment(column, alignment)
        elif action == 'quickview':
            from calibre.customize.ui import find_plugin
            qv = find_plugin('Show Quickview')
            if qv:
                rows = self.selectionModel().selectedRows()
                if len(rows) > 0:
                    current_row = rows[0].row()
                    current_col = self.column_map.index(column)
                    index = self.model().index(current_row, current_col)
                    qv.actual_plugin_.change_quickview_column(index)

        self.save_state()

    def show_column_header_context_menu(self, pos):
        idx = self.column_header.logicalIndexAt(pos)
        if idx > -1 and idx < len(self.column_map):
            col = self.column_map[idx]
            name = unicode(self.model().headerData(idx, Qt.Horizontal,
                                                   Qt.DisplayRole).toString())
            self.column_header_context_menu = QMenu(self)
            if col != 'ondevice':
                self.column_header_context_menu.addAction(
                    _('Hide column %s') % name,
                    partial(self.column_header_context_handler,
                            action='hide',
                            column=col))
            m = self.column_header_context_menu.addMenu(_('Sort on %s') % name)
            a = m.addAction(
                _('Ascending'),
                partial(self.column_header_context_handler,
                        action='ascending',
                        column=col))
            d = m.addAction(
                _('Descending'),
                partial(self.column_header_context_handler,
                        action='descending',
                        column=col))
            if self._model.sorted_on[0] == col:
                ac = a if self._model.sorted_on[1] else d
                ac.setCheckable(True)
                ac.setChecked(True)
            if col not in ('ondevice', 'inlibrary') and \
                    (not self.model().is_custom_column(col) or
                    self.model().custom_columns[col]['datatype'] not in ('bool',
                        )):
                m = self.column_header_context_menu.addMenu(
                    _('Change text alignment for %s') % name)
                al = self._model.alignment_map.get(col, 'left')
                for x, t in (('left', _('Left')), ('right', _('Right')),
                             ('center', _('Center'))):
                    a = m.addAction(
                        t,
                        partial(self.column_header_context_handler,
                                action='align_' + x,
                                column=col))
                    if al == x:
                        a.setCheckable(True)
                        a.setChecked(True)

            if not isinstance(self, DeviceBooksView):
                if self._model.db.field_metadata[col]['is_category']:
                    act = self.column_header_context_menu.addAction(
                        _('Quickview column %s') % name,
                        partial(self.column_header_context_handler,
                                action='quickview',
                                column=col))
                    rows = self.selectionModel().selectedRows()
                    if len(rows) > 1:
                        act.setEnabled(False)

            hidden_cols = [
                self.column_map[i] for i in range(self.column_header.count())
                if self.column_header.isSectionHidden(i)
            ]
            try:
                hidden_cols.remove('ondevice')
            except:
                pass
            if hidden_cols:
                self.column_header_context_menu.addSeparator()
                m = self.column_header_context_menu.addMenu(_('Show column'))
                for col in hidden_cols:
                    hidx = self.column_map.index(col)
                    name = unicode(self.model().headerData(
                        hidx, Qt.Horizontal, Qt.DisplayRole).toString())
                    m.addAction(
                        name,
                        partial(self.column_header_context_handler,
                                action='show',
                                column=col))

            self.column_header_context_menu.addSeparator()
            self.column_header_context_menu.addAction(
                _('Shrink column if it is too wide to fit'),
                partial(self.resize_column_to_fit,
                        column=self.column_map[idx]))
            self.column_header_context_menu.addAction(
                _('Restore default layout'),
                partial(self.column_header_context_handler,
                        action='defaults',
                        column=col))

            if self.can_add_columns:
                self.column_header_context_menu.addAction(
                    QIcon(I('column.png')), _('Add your own columns'),
                    partial(self.column_header_context_handler,
                            action='addcustcol',
                            column=col))

            self.column_header_context_menu.popup(
                self.column_header.mapToGlobal(pos))

    # }}}

    # Sorting {{{
    def about_to_be_sorted(self, idc):
        selected_rows = [r.row() for r in self.selectionModel().selectedRows()]
        self.selected_ids = [idc(r) for r in selected_rows]

    def sorting_done(self, indexc):
        pos = self.horizontalScrollBar().value()
        self.select_rows(self.selected_ids,
                         using_ids=True,
                         change_current=True,
                         scroll=True)
        self.selected_ids = []
        self.horizontalScrollBar().setValue(pos)

    def sort_by_named_field(self, field, order, reset=True):
        if field in self.column_map:
            idx = self.column_map.index(field)
            if order:
                self.sortByColumn(idx, Qt.AscendingOrder)
            else:
                self.sortByColumn(idx, Qt.DescendingOrder)
        else:
            self._model.sort_by_named_field(field, order, reset)

    def multisort(self, fields, reset=True, only_if_different=False):
        if len(fields) == 0:
            return
        sh = self.cleanup_sort_history(self._model.sort_history,
                                       ignore_column_map=True)
        if only_if_different and len(sh) >= len(fields):
            ret = True
            for i, t in enumerate(fields):
                if t[0] != sh[i][0]:
                    ret = False
                    break
            if ret:
                return

        for n, d in reversed(fields):
            if n in self._model.db.field_metadata.keys():
                sh.insert(0, (n, d))
        sh = self.cleanup_sort_history(sh, ignore_column_map=True)
        self._model.sort_history = [tuple(x) for x in sh]
        self._model.resort(reset=reset)
        col = fields[0][0]
        dir = Qt.AscendingOrder if fields[0][1] else Qt.DescendingOrder
        if col in self.column_map:
            col = self.column_map.index(col)
            hdrs = self.horizontalHeader()
            try:
                hdrs.setSortIndicator(col, dir)
            except:
                pass

    # }}}

    # Ondevice column {{{
    def set_ondevice_column_visibility(self):
        m = self._model
        self.column_header.setSectionHidden(m.column_map.index('ondevice'),
                                            not m.device_connected)

    def set_device_connected(self, is_connected):
        self._model.set_device_connected(is_connected)
        self.set_ondevice_column_visibility()

    # }}}

    # Save/Restore State {{{
    def get_state(self):
        h = self.column_header
        cm = self.column_map
        state = {}
        state['hidden_columns'] = [
            cm[i] for i in range(h.count())
            if h.isSectionHidden(i) and cm[i] != 'ondevice'
        ]
        state['last_modified_injected'] = True
        state['languages_injected'] = True
        state['sort_history'] = \
            self.cleanup_sort_history(self.model().sort_history)
        state['column_positions'] = {}
        state['column_sizes'] = {}
        state['column_alignment'] = self._model.alignment_map
        for i in range(h.count()):
            name = cm[i]
            state['column_positions'][name] = h.visualIndex(i)
            if name != 'ondevice':
                state['column_sizes'][name] = h.sectionSize(i)
        return state

    def write_state(self, state):
        db = getattr(self.model(), 'db', None)
        name = unicode(self.objectName())
        if name and db is not None:
            db.prefs.set(name + ' books view state', state)

    def save_state(self):
        # Only save if we have been initialized (set_database called)
        if len(self.column_map) > 0 and self.was_restored:
            state = self.get_state()
            self.write_state(state)

    def cleanup_sort_history(self, sort_history, ignore_column_map=False):
        history = []
        for col, order in sort_history:
            if not isinstance(order, bool):
                continue
            if col == 'date':
                col = 'timestamp'
            if ignore_column_map or col in self.column_map:
                if (not history or history[-1][0] != col):
                    history.append([col, order])
        return history

    def apply_sort_history(self, saved_history, max_sort_levels=3):
        if not saved_history:
            return
        for col, order in reversed(
                self.cleanup_sort_history(saved_history)[:max_sort_levels]):
            self.sortByColumn(
                self.column_map.index(col),
                Qt.AscendingOrder if order else Qt.DescendingOrder)

    def apply_state(self, state, max_sort_levels=3):
        h = self.column_header
        cmap = {}
        hidden = state.get('hidden_columns', [])
        for i, c in enumerate(self.column_map):
            cmap[c] = i
            if c != 'ondevice':
                h.setSectionHidden(i, c in hidden)

        positions = state.get('column_positions', {})
        pmap = {}
        for col, pos in positions.items():
            if col in cmap:
                pmap[pos] = col
        for pos in sorted(pmap.keys()):
            col = pmap[pos]
            idx = cmap[col]
            current_pos = h.visualIndex(idx)
            if current_pos != pos:
                h.moveSection(current_pos, pos)

        sizes = state.get('column_sizes', {})
        for col, size in sizes.items():
            if col in cmap:
                sz = sizes[col]
                if sz < 3:
                    sz = h.sectionSizeHint(cmap[col])
                h.resizeSection(cmap[col], sz)

        self.apply_sort_history(state.get('sort_history', None),
                                max_sort_levels=max_sort_levels)

        for col, alignment in state.get('column_alignment', {}).items():
            self._model.change_alignment(col, alignment)

        for i in range(h.count()):
            if not h.isSectionHidden(i) and h.sectionSize(i) < 3:
                sz = h.sectionSizeHint(i)
                h.resizeSection(i, sz)

    def get_default_state(self):
        old_state = {
            'hidden_columns': ['last_modified', 'languages'],
            'sort_history': [DEFAULT_SORT],
            'column_positions': {},
            'column_sizes': {},
            'column_alignment': {
                'size': 'center',
                'timestamp': 'center',
                'pubdate': 'center'
            },
            'last_modified_injected': True,
            'languages_injected': True,
        }
        h = self.column_header
        cm = self.column_map
        for i in range(h.count()):
            name = cm[i]
            old_state['column_positions'][name] = i
            if name != 'ondevice':
                old_state['column_sizes'][name] = \
                    min(350, max(self.sizeHintForColumn(i),
                        h.sectionSizeHint(i)))
                if name in ('timestamp', 'last_modified'):
                    old_state['column_sizes'][name] += 12
        return old_state

    def get_old_state(self):
        ans = None
        name = unicode(self.objectName())
        if name:
            name += ' books view state'
            db = getattr(self.model(), 'db', None)
            if db is not None:
                ans = db.prefs.get(name, None)
                if ans is None:
                    ans = gprefs.get(name, None)
                    try:
                        del gprefs[name]
                    except:
                        pass
                    if ans is not None:
                        db.prefs[name] = ans
                else:
                    injected = False
                    if not ans.get('last_modified_injected', False):
                        injected = True
                        ans['last_modified_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'last_modified' not in hc:
                            hc.append('last_modified')
                    if not ans.get('languages_injected', False):
                        injected = True
                        ans['languages_injected'] = True
                        hc = ans.get('hidden_columns', [])
                        if 'languages' not in hc:
                            hc.append('languages')
                    if injected:
                        db.prefs[name] = ans
        return ans

    def restore_state(self):
        old_state = self.get_old_state()
        if old_state is None:
            old_state = self.get_default_state()
        max_levels = 3

        if tweaks['sort_columns_at_startup'] is not None:
            sh = []
            try:
                for c, d in tweaks['sort_columns_at_startup']:
                    if not isinstance(d, bool):
                        d = True if d == 0 else False
                    sh.append((c, d))
            except:
                # Ignore invalid tweak values as users seem to often get them
                # wrong
                print(
                    'Ignoring invalid sort_columns_at_startup tweak, with error:'
                )
                import traceback
                traceback.print_exc()
            old_state['sort_history'] = sh
            max_levels = max(3, len(sh))

        self.column_header.blockSignals(True)
        self.apply_state(old_state, max_sort_levels=max_levels)
        self.column_header.blockSignals(False)

        self.do_row_sizing()

        self.was_restored = True

    def refresh_row_sizing(self):
        self.row_sizing_done = False
        self.do_row_sizing()

    def do_row_sizing(self):
        # Resize all rows to have the correct height
        if not self.row_sizing_done and self.model().rowCount(
                QModelIndex()) > 0:
            self.resizeRowToContents(0)
            self.verticalHeader().setDefaultSectionSize(
                self.rowHeight(0) + gprefs['extra_row_spacing'])
            self.row_sizing_done = True

    def resize_column_to_fit(self, column):
        col = self.column_map.index(column)
        self.column_resized(col, self.columnWidth(col), self.columnWidth(col))

    def column_resized(self, col, old_size, new_size):
        # arbitrary: scroll bar + header + some
        max_width = self.width() - (self.verticalScrollBar().width() +
                                    self.verticalHeader().width() + 10)
        if max_width < 200:
            max_width = 200
        if new_size > max_width:
            self.column_header.blockSignals(True)
            self.setColumnWidth(col, max_width)
            self.column_header.blockSignals(False)

    # }}}

    # Initialization/Delegate Setup {{{

    def set_database(self, db):
        self.save_state()
        self._model.set_database(db)
        self.tags_delegate.set_database(db)
        self.cc_names_delegate.set_database(db)
        self.authors_delegate.set_database(db)
        self.series_delegate.set_auto_complete_function(db.all_series)
        self.publisher_delegate.set_auto_complete_function(db.all_publishers)

    def database_changed(self, db):
        for i in range(self.model().columnCount(None)):
            if self.itemDelegateForColumn(i) in (self.rating_delegate,
                                                 self.timestamp_delegate,
                                                 self.pubdate_delegate,
                                                 self.last_modified_delegate,
                                                 self.languages_delegate):
                self.setItemDelegateForColumn(i, self.itemDelegate())

        cm = self.column_map

        for colhead in cm:
            if self._model.is_custom_column(colhead):
                cc = self._model.custom_columns[colhead]
                if cc['datatype'] == 'datetime':
                    delegate = CcDateDelegate(self)
                    delegate.set_format(cc['display'].get('date_format', ''))
                    self.setItemDelegateForColumn(cm.index(colhead), delegate)
                elif cc['datatype'] == 'comments':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_comments_delegate)
                elif cc['datatype'] == 'text':
                    if cc['is_multiple']:
                        if cc['display'].get('is_names', False):
                            self.setItemDelegateForColumn(
                                cm.index(colhead), self.cc_names_delegate)
                        else:
                            self.setItemDelegateForColumn(
                                cm.index(colhead), self.tags_delegate)
                    else:
                        self.setItemDelegateForColumn(cm.index(colhead),
                                                      self.cc_text_delegate)
                elif cc['datatype'] == 'series':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_text_delegate)
                elif cc['datatype'] in ('int', 'float'):
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_number_delegate)
                elif cc['datatype'] == 'bool':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_bool_delegate)
                elif cc['datatype'] == 'rating':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.rating_delegate)
                elif cc['datatype'] == 'composite':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_template_delegate)
                elif cc['datatype'] == 'enumeration':
                    self.setItemDelegateForColumn(cm.index(colhead),
                                                  self.cc_enum_delegate)
            else:
                dattr = colhead + '_delegate'
                delegate = colhead if hasattr(self, dattr) else 'text'
                self.setItemDelegateForColumn(
                    cm.index(colhead), getattr(self, delegate + '_delegate'))

        self.restore_state()
        self.set_ondevice_column_visibility()
        #}}}

    # Context Menu {{{
    def set_context_menu(self, menu, edit_collections_action):
        self.setContextMenuPolicy(Qt.DefaultContextMenu)
        self.context_menu = menu
        self.edit_collections_action = edit_collections_action

    def contextMenuEvent(self, event):
        self.context_menu.popup(event.globalPos())
        event.accept()

    # }}}

    # Drag 'n Drop {{{
    @classmethod
    def paths_from_event(cls, event):
        '''
        Accept a drop event and return a list of paths that can be read from
        and represent files with extensions.
        '''
        md = event.mimeData()
        if md.hasFormat('text/uri-list') and not \
                md.hasFormat('application/calibre+from_library'):
            urls = [unicode(u.toLocalFile()) for u in md.urls()]
            return [
                u for u in urls if os.path.splitext(u)[1] and os.path.exists(u)
            ]

    def drag_icon(self, cover, multiple):
        cover = cover.scaledToHeight(120, Qt.SmoothTransformation)
        if multiple:
            base_width = cover.width()
            base_height = cover.height()
            base = QImage(base_width + 21, base_height + 21,
                          QImage.Format_ARGB32_Premultiplied)
            base.fill(QColor(255, 255, 255, 0).rgba())
            p = QPainter(base)
            rect = QRect(20, 0, base_width, base_height)
            p.fillRect(rect, QColor('white'))
            p.drawRect(rect)
            rect.moveLeft(10)
            rect.moveTop(10)
            p.fillRect(rect, QColor('white'))
            p.drawRect(rect)
            rect.moveLeft(0)
            rect.moveTop(20)
            p.fillRect(rect, QColor('white'))
            p.save()
            p.setCompositionMode(p.CompositionMode_SourceAtop)
            p.drawImage(rect.topLeft(), cover)
            p.restore()
            p.drawRect(rect)
            p.end()
            cover = base
        return QPixmap.fromImage(cover)

    def drag_data(self):
        m = self.model()
        db = m.db
        rows = self.selectionModel().selectedRows()
        selected = list(map(m.id, rows))
        ids = ' '.join(map(str, selected))
        md = QMimeData()
        md.setData('application/calibre+from_library', ids)
        fmt = prefs['output_format']

        def url_for_id(i):
            try:
                ans = db.format_path(i, fmt, index_is_id=True)
            except:
                ans = None
            if ans is None:
                fmts = db.formats(i, index_is_id=True)
                if fmts:
                    fmts = fmts.split(',')
                else:
                    fmts = []
                for f in fmts:
                    try:
                        ans = db.format_path(i, f, index_is_id=True)
                    except:
                        ans = None
            if ans is None:
                ans = db.abspath(i, index_is_id=True)
            return QUrl.fromLocalFile(ans)

        md.setUrls([url_for_id(i) for i in selected])
        drag = QDrag(self)
        col = self.selectionModel().currentIndex().column()
        md.column_name = self.column_map[col]
        drag.setMimeData(md)
        cover = self.drag_icon(m.cover(self.currentIndex().row()),
                               len(selected) > 1)
        drag.setHotSpot(QPoint(-15, -15))
        drag.setPixmap(cover)
        return drag

    def event_has_mods(self, event=None):
        mods = event.modifiers() if event is not None else \
                QApplication.keyboardModifiers()
        return mods & Qt.ControlModifier or mods & Qt.ShiftModifier

    def mousePressEvent(self, event):
        ep = event.pos()
        if self.indexAt(ep) in self.selectionModel().selectedIndexes() and \
                event.button() == Qt.LeftButton and not self.event_has_mods():
            self.drag_start_pos = ep
        return QTableView.mousePressEvent(self, event)

    def mouseMoveEvent(self, event):
        if not self.drag_allowed:
            return
        if self.drag_start_pos is None:
            return QTableView.mouseMoveEvent(self, event)

        if self.event_has_mods():
            self.drag_start_pos = None
            return

        if not (event.buttons() & Qt.LeftButton) or \
                (event.pos() - self.drag_start_pos).manhattanLength() \
                      < QApplication.startDragDistance():
            return

        index = self.indexAt(event.pos())
        if not index.isValid():
            return
        drag = self.drag_data()
        drag.exec_(Qt.CopyAction)
        self.drag_start_pos = None

    def dragEnterEvent(self, event):
        if int(event.possibleActions() & Qt.CopyAction) + \
           int(event.possibleActions() & Qt.MoveAction) == 0:
            return
        paths = self.paths_from_event(event)

        if paths:
            event.acceptProposedAction()

    def dragMoveEvent(self, event):
        event.acceptProposedAction()

    def dropEvent(self, event):
        paths = self.paths_from_event(event)
        event.setDropAction(Qt.CopyAction)
        event.accept()
        self.files_dropped.emit(paths)

    # }}}

    @property
    def column_map(self):
        return self._model.column_map

    def refresh_book_details(self):
        idx = self.currentIndex()
        if idx.isValid():
            self._model.current_changed(idx, idx)

    def scrollContentsBy(self, dx, dy):
        # Needed as Qt bug causes headerview to not always update when scrolling
        QTableView.scrollContentsBy(self, dx, dy)
        if dy != 0:
            self.column_header.update()

    def scroll_to_row(self, row):
        if row > -1:
            h = self.horizontalHeader()
            for i in range(h.count()):
                if not h.isSectionHidden(
                        i) and h.sectionViewportPosition(i) >= 0:
                    self.scrollTo(self.model().index(row, i),
                                  self.PositionAtCenter)
                    break

    def set_current_row(self, row=0, select=True):
        if row > -1 and row < self.model().rowCount(QModelIndex()):
            h = self.horizontalHeader()
            logical_indices = list(range(h.count()))
            logical_indices = [
                x for x in logical_indices if not h.isSectionHidden(x)
            ]
            pairs = [(x, h.visualIndex(x)) for x in logical_indices
                     if h.visualIndex(x) > -1]
            if not pairs:
                pairs = [(0, 0)]
            pairs.sort(cmp=lambda x, y: cmp(x[1], y[1]))
            i = pairs[0][0]
            index = self.model().index(row, i)
            self.setCurrentIndex(index)
            if select:
                sm = self.selectionModel()
                sm.select(index, sm.ClearAndSelect | sm.Rows)

    def keyPressEvent(self, ev):
        val = self.horizontalScrollBar().value()
        ret = super(BooksView, self).keyPressEvent(ev)
        if ev.isAccepted() and ev.key() in (
                Qt.Key_Home,
                Qt.Key_End) and ev.modifiers() & Qt.ControlModifier:
            self.horizontalScrollBar().setValue(val)
        return ret

    def ids_to_rows(self, ids):
        row_map = OrderedDict()
        ids = frozenset(ids)
        m = self.model()
        for row in xrange(m.rowCount(QModelIndex())):
            if len(row_map) >= len(ids):
                break
            c = m.id(row)
            if c in ids:
                row_map[c] = row
        return row_map

    def select_rows(self,
                    identifiers,
                    using_ids=True,
                    change_current=True,
                    scroll=True):
        '''
        Select rows identified by identifiers. identifiers can be a set of ids,
        row numbers or QModelIndexes.
        '''
        rows = set([x.row() if hasattr(x, 'row') else x for x in identifiers])
        if using_ids:
            rows = set([])
            identifiers = set(identifiers)
            m = self.model()
            for row in xrange(m.rowCount(QModelIndex())):
                if m.id(row) in identifiers:
                    rows.add(row)
        rows = list(sorted(rows))
        if rows:
            row = rows[0]
            if change_current:
                self.set_current_row(row, select=False)
            if scroll:
                self.scroll_to_row(row)
        sm = self.selectionModel()
        sel = QItemSelection()
        m = self.model()
        max_col = m.columnCount(QModelIndex()) - 1
        # Create a range based selector for each set of contiguous rows
        # as supplying selectors for each individual row causes very poor
        # performance if a large number of rows has to be selected.
        for k, g in itertools.groupby(enumerate(rows), lambda (i, x): i - x):
            group = list(map(operator.itemgetter(1), g))
            sel.merge(
                QItemSelection(m.index(min(group), 0),
                               m.index(max(group), max_col)), sm.Select)
        sm.select(sel, sm.ClearAndSelect)
Exemple #40
0
def makemenu_helper(widget, menu_spec, menu = None):
    """
    Make and return a reusable or one-time-use (at caller's option)
    popup menu whose structure is specified by menu_spec,
    which is a list of menu item specifiers, each of which is either None
    (for a separator) or a tuple of the form (menu text, callable or submenu,
    option1, option2, ...) with 0 or more options (described below).
       A submenu can be either another menu_spec list, or a QMenu object
    (but in the latter case the menu text is ignored -- maybe it comes
    from that QMenu object somehow -- not sure if this was different in Qt3).
    In either case it is the 2nd menu-item-tuple element, in place of the callable.
       Otherwise the callable must satisfy the python 'callable' predicate,
    and is executed if the menu item is chosen, wrapped inside another function
    which handles Undo checkpointing and Undo-command-name setting.
       The options in a menu item tuple can be zero or more (in any order,
    duplicates allowed) of the following:
    'disabled' -- the menu item should be disabled;
    'checked' -- the menu item will be checked;
    None -- this option is legal but ignored (but the callable must still satisfy
    the python predicate "callable"; constants.noop might be useful for that case).
       The Qt3 version also supported tuple-options consisting of one of the words
    'iconset' and 'whatsThis' followed by an appropriate argument, but those have
    not yet been ported to Qt4 (except possibly for disabled menu items -- UNTESTED).
       Unrecognized options may or may not generate warnings, and are otherwise ignored.
    [###FIX that -- they always ought to print a warning to developers. Note that right
    now they do iff 'disabled' is one of the options and ATOM_DEBUG is set.]
       The 'widget' argument should be the Qt widget
    which is using this function to put up a menu.
       If the menu argument is provided, it should be a QMenu
    to which we'll add items; otherwise we create our own QMenu
    and add items to it.
    """
    from utilities.debug import print_compact_traceback
    import types
    if menu is None:
        menu = QMenu(widget)
        ## menu.show()
        #bruce 070514 removed menu.show() to fix a cosmetic and performance bug
        # (on Mac, possibly on other platforms too; probably unreported)
        # in which the debug menu first appears in screen center, slowly grows
        # to full size while remaining blank, then moves to its final position
        # and looks normal (causing a visual glitch, and a 2-3 second delay
        # in being able to use it). May fix similar issues with other menus.
        # If this causes harm for some menus or platforms, we can adapt it.
    # bruce 040909-16 moved this method from basicMode to GLPane,
    # leaving a delegator for it in basicMode.
    # (bruce was not the original author, but modified it)
    #menu = QMenu( widget)
    for m in menu_spec:
        try: #bruce 050416 added try/except as debug code and for safety
            menutext = m and widget.trUtf8(m[0])
            if m and isinstance(m[1], QMenu): #bruce 041010 added this case
                submenu = m[1]
                #menu.insertItem( menutext, submenu )
                menu.addMenu(submenu)   # how do I get menutext in there?
                    # (similar code might work for QAction case too, not sure)
            elif m and isinstance(m[1], types.ListType): #bruce 041103 added this case
                submenu = QMenu(menutext, menu)
                submenu = makemenu_helper(widget, m[1], submenu) # [this used to call widget.makemenu]
                menu.addMenu(submenu)
            elif m:
                assert callable(m[1]), \
                    "%r[1] needs to be a callable" % (m,) #bruce 041103
                # transform m[1] into a new callable that makes undo checkpoints and provides an undo command-name
                # [bruce 060324 for possible bugs in undo noticing cmenu items, and for the cmdnames]
                func = wrap_callable_for_undo(m[1], cmdname = m[0])
                    # guess about cmdname, but it might be reasonable for A7 as long as we ensure weird characters won't confuse it
                import foundation.changes as changes
                changes.keep_forever(func) # THIS IS BAD (memory leak), but it's not a severe one, so ok for A7 [bruce 060324]
                    # (note: the hard part about removing these when we no longer need them is knowing when to do that
                    #  if the user ends up not selecting anything from the menu. Also, some callers make these
                    #  menus for reuse multiple times, and for them we never want to deallocate func even when some
                    #  menu command gets used. We could solve both of these by making the caller pass a place to keep these
                    #  which it would deallocate someday or which would ensure only one per distinct kind of menu is kept. #e)
                if 'disabled' not in m[2:]:
                    act = QAction(widget)
                    act.setText( menutext)
                    if 'checked' in m[2:]:
                        act.setCheckable(True)
                        act.setChecked(True)
                    menu.addAction(act)
                    widget.connect(act, SIGNAL("activated()"), func)
                else:
                    # disabled case
                    # [why is this case done differently, in this Qt4 port?? -- bruce 070522 question]
                    insert_command_into_menu(menu, menutext, func, options = m[2:], raw_command = True)
            else:
                menu.addSeparator() #bruce 070522 bugfix -- before this, separators were placed lower down or dropped
                    # so as not to come before disabled items, for unknown reasons.
                    # (Speculation: maybe because insertSeparator was used, since addSeparator didn't work or wasn't noticed,
                    #  and since disabled item were added by an older function (also for unknown reasons)?)
                pass
        except Exception, e:
            if isinstance(e, SystemExit):
                raise
            print_compact_traceback("exception in makemenu_helper ignored, for %r:\n" % (m,) )
                #bruce 070522 restored this (was skipped in Qt4 port)
            pass #e could add a fake menu item here as an error message