def lookup(self, word):
self.dictionary_view.setHtml('<html><body><p>'+ \
_('Connecting to dict.org to lookup: <b>%s</b>…')%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 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>…')%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 lookup(self, word):
self.dictionary_view.setHtml('<html><body><p>'+ \
_('Connecting to dict.org to lookup: <b>%s</b>…')%word + \
'</p></body></html>')
self.dictionary_box.show()
self._lookup = Lookup(word, parent=self)
self._lookup.finished.connect(self.looked_up)
self._lookup.start()
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>…')%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)
