Esempio n. 1
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def setFont(o, v):
    v = QFont(v)
    try:
        name = v.toString().split(',')[0]
    except (IndexError, ):
        name = v.rawName()
    size = v.pointSize()
    bold = 'Bold' if v.bold() else ''
    o.setFont(v)
    o.setText('%s %s %s' % (name, size, bold))
Esempio n. 2
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def setFont(o, v):
    v = QFont(v)
    try:
        name = v.toString().split(',')[0]
    except (IndexError, ):
        name = v.rawName()
    size = v.pointSize()
    bold = 'Bold' if v.bold() else ''
    o.setFont(v)
    o.setText('%s %s %s' % (name, size, bold))
Esempio n. 3
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 def readSettings(self):
     settings = QSettings()
     self.resize(settings.value("mainWindow/size", QSize(800, 600)))
     pos = settings.value("mainWindow/pos", QPoint(0, 0))
     listOfOpenedNotes = settings.value("list of opened notes")
     print("Opened notes:", listOfOpenedNotes)
     fontDetails = settings.value("mainWindow/font",
                                  "Architext, -1, -1, False")
     fontSize = settings.value("mainWindow/fontSize", 12)
     family, _, _, fontWeight, italics, *_ = fontDetails.split(",")
     font = QFont(family, int(fontSize), int(fontWeight), bool(italics))
     self.fontTypeComboBox.setCurrentFont(font)
     self.fontSizeSpinBox.setValue(int(fontSize))
     self.textItalicsButton.click() if font.italic(
     ) else self.textItalicsButton.clearFocus(
     )  #TODO: code smell, review later
     self.textBoldButton.click() if font.bold(
     ) else self.textBoldButton.clearFocus(
     )  #TODO: code smell, review later
     self.move(pos)
     self.restoreState(settings.value("mainWindow/state"))
Esempio n. 4
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class TextEditBaseWidget(QPlainTextEdit, BaseEditMixin):
    """Text edit base widget"""
    BRACE_MATCHING_SCOPE = ('sof', 'eof')
    CELL_SEPARATORS = ('#%%', '# %%', '# <codecell>')

    def __init__(self, parent=None):
        QPlainTextEdit.__init__(self, parent)
        BaseEditMixin.__init__(self)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.extra_selections_dict = {}

        self.connect(self, SIGNAL('textChanged()'), self.changed)
        self.connect(self, SIGNAL('cursorPositionChanged()'),
                     self.cursor_position_changed)

        self.indent_chars = " " * 4

        # Code completion / calltips
        if parent is not None:
            mainwin = parent
            while not isinstance(mainwin, QMainWindow):
                mainwin = mainwin.parent()
                if mainwin is None:
                    break
            if mainwin is not None:
                parent = mainwin
        self.completion_widget = CompletionWidget(self, parent)
        self.codecompletion_auto = False
        self.codecompletion_case = True
        self.codecompletion_single = False
        self.codecompletion_enter = False
        self.calltips = True
        self.calltip_position = None
        self.calltip_size = 600
        self.calltip_font = QFont()
        self.completion_text = ""

        # Highlight current line color
        self.currentline_color = QColor(Qt.red).lighter(190)

        # Brace matching
        self.bracepos = None
        self.matched_p_color = QColor(Qt.green)
        self.unmatched_p_color = QColor(Qt.red)

    def setup_calltips(self, size=None, font=None):
        self.calltip_size = size
        self.calltip_font = font

    def setup_completion(self, size=None, font=None):
        self.completion_widget.setup_appearance(size, font)

    def set_indent_chars(self, indent_chars):
        self.indent_chars = indent_chars

    def set_palette(self, background, foreground):
        """
        Set text editor palette colors:
        background color and caret (text cursor) color
        """
        palette = QPalette()
        palette.setColor(QPalette.Base, background)
        palette.setColor(QPalette.Text, foreground)
        self.setPalette(palette)

    #------Line number area
    def get_linenumberarea_width(self):
        """Return line number area width"""
        # Implemented in CodeEditor, but needed here for completion widget
        return 0

    #------Extra selections
    def get_extra_selections(self, key):
        return self.extra_selections_dict.get(key, [])

    def set_extra_selections(self, key, extra_selections):
        self.extra_selections_dict[key] = extra_selections

    def update_extra_selections(self):
        extra_selections = []
        for key, extra in list(self.extra_selections_dict.items()):
            if key == 'current_line':
                # Python 3 compatibility (weird): current line has to be
                # highlighted first
                extra_selections = extra + extra_selections
            else:
                extra_selections += extra
        self.setExtraSelections(extra_selections)

    def clear_extra_selections(self, key):
        self.extra_selections_dict[key] = []
        self.update_extra_selections()

    def changed(self):
        """Emit changed signal"""
        self.emit(SIGNAL('modificationChanged(bool)'),
                  self.document().isModified())

    #------Highlight current line
    def highlight_current_line(self):
        """Highlight current line"""
        selection = QTextEdit.ExtraSelection()
        #        selection.format.setProperty(QTextFormat.FullWidthSelection,
        #                                     QVariant(True))
        selection.format.setBackground(self.currentline_color)
        selection.cursor = self.textCursor()
        selection.cursor.clearSelection()
        self.set_extra_selections('current_line', [selection])
        self.update_extra_selections()

    def unhighlight_current_line(self):
        """Unhighlight current line"""
        self.clear_extra_selections('current_line')

    #------Brace matching
    def find_brace_match(self, position, brace, forward):
        start_pos, end_pos = self.BRACE_MATCHING_SCOPE
        if forward:
            bracemap = {'(': ')', '[': ']', '{': '}'}
            text = self.get_text(position, end_pos)
            i_start_open = 1
            i_start_close = 1
        else:
            bracemap = {')': '(', ']': '[', '}': '{'}
            text = self.get_text(start_pos, position)
            i_start_open = len(text) - 1
            i_start_close = len(text) - 1

        while True:
            if forward:
                i_close = text.find(bracemap[brace], i_start_close)
            else:
                i_close = text.rfind(bracemap[brace], 0, i_start_close + 1)
            if i_close > -1:
                if forward:
                    i_start_close = i_close + 1
                    i_open = text.find(brace, i_start_open, i_close)
                else:
                    i_start_close = i_close - 1
                    i_open = text.rfind(brace, i_close, i_start_open + 1)
                if i_open > -1:
                    if forward:
                        i_start_open = i_open + 1
                    else:
                        i_start_open = i_open - 1
                else:
                    # found matching brace
                    if forward:
                        return position + i_close
                    else:
                        return position - (len(text) - i_close)
            else:
                # no matching brace
                return

    def __highlight(self, positions, color=None, cancel=False):
        if cancel:
            self.clear_extra_selections('brace_matching')
            return
        extra_selections = []
        for position in positions:
            if position > self.get_position('eof'):
                return
            selection = QTextEdit.ExtraSelection()
            selection.format.setBackground(color)
            selection.cursor = self.textCursor()
            selection.cursor.clearSelection()
            selection.cursor.setPosition(position)
            selection.cursor.movePosition(QTextCursor.NextCharacter,
                                          QTextCursor.KeepAnchor)
            extra_selections.append(selection)
        self.set_extra_selections('brace_matching', extra_selections)
        self.update_extra_selections()

    def cursor_position_changed(self):
        """Brace matching"""
        if self.bracepos is not None:
            self.__highlight(self.bracepos, cancel=True)
            self.bracepos = None
        cursor = self.textCursor()
        if cursor.position() == 0:
            return
        cursor.movePosition(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        text = to_text_string(cursor.selectedText())
        pos1 = cursor.position()
        if text in (')', ']', '}'):
            pos2 = self.find_brace_match(pos1, text, forward=False)
        elif text in ('(', '[', '{'):
            pos2 = self.find_brace_match(pos1, text, forward=True)
        else:
            return
        if pos2 is not None:
            self.bracepos = (pos1, pos2)
            self.__highlight(self.bracepos, color=self.matched_p_color)
        else:
            self.bracepos = (pos1, )
            self.__highlight(self.bracepos, color=self.unmatched_p_color)

    #-----Widget setup and options
    def set_codecompletion_auto(self, state):
        """Set code completion state"""
        self.codecompletion_auto = state

    def set_codecompletion_case(self, state):
        """Case sensitive completion"""
        self.codecompletion_case = state
        self.completion_widget.case_sensitive = state

    def set_codecompletion_single(self, state):
        """Show single completion"""
        self.codecompletion_single = state
        self.completion_widget.show_single = state

    def set_codecompletion_enter(self, state):
        """Enable Enter key to select completion"""
        self.codecompletion_enter = state
        self.completion_widget.enter_select = state

    def set_calltips(self, state):
        """Set calltips state"""
        self.calltips = state

    def set_wrap_mode(self, mode=None):
        """
        Set wrap mode
        Valid *mode* values: None, 'word', 'character'
        """
        if mode == 'word':
            wrap_mode = QTextOption.WrapAtWordBoundaryOrAnywhere
        elif mode == 'character':
            wrap_mode = QTextOption.WrapAnywhere
        else:
            wrap_mode = QTextOption.NoWrap
        self.setWordWrapMode(wrap_mode)

    #------Reimplementing Qt methods
    def copy(self):
        """
        Reimplement Qt method
        Copy text to clipboard with correct EOL chars
        """
        QApplication.clipboard().setText(self.get_selected_text())

    #------Text: get, set, ...
    def get_selection_as_executable_code(self):
        """Return selected text as a processed text,
        to be executable in a Python/IPython interpreter"""
        ls = self.get_line_separator()

        _indent = lambda line: len(line) - len(line.lstrip())

        line_from, line_to = self.get_selection_bounds()
        text = self.get_selected_text()
        if not text:
            return

        lines = text.split(ls)
        if len(lines) > 1:
            # Multiline selection -> eventually fixing indentation
            original_indent = _indent(self.get_text_line(line_from))
            text = (" " * (original_indent - _indent(lines[0]))) + text

        # If there is a common indent to all lines, find it.
        # Moving from bottom line to top line ensures that blank
        # lines inherit the indent of the line *below* it,
        # which is the desired behavior.
        min_indent = 999
        current_indent = 0
        lines = text.split(ls)
        for i in range(len(lines) - 1, -1, -1):
            line = lines[i]
            if line.strip():
                current_indent = _indent(line)
                min_indent = min(current_indent, min_indent)
            else:
                lines[i] = ' ' * current_indent
        if min_indent:
            lines = [line[min_indent:] for line in lines]

        # Remove any leading whitespace or comment lines
        # since they confuse the reserved word detector that follows below
        first_line = lines[0].lstrip()
        while first_line == '' or first_line[0] == '#':
            lines.pop(0)
            first_line = lines[0].lstrip()

        # Add an EOL character after indentation blocks that start with some
        # Python reserved words, so that it gets evaluated automatically
        # by the console
        varname = re.compile('[a-zA-Z0-9_]*')  # matches valid variable names
        maybe = False
        nextexcept = ()
        for n, line in enumerate(lines):
            if not _indent(line):
                word = varname.match(line).group()
                if maybe and word not in nextexcept:
                    lines[n - 1] += ls
                    maybe = False
                if word:
                    if word in ('def', 'for', 'while', 'with', 'class'):
                        maybe = True
                        nextexcept = ()
                    elif word == 'if':
                        maybe = True
                        nextexcept = ('elif', 'else')
                    elif word == 'try':
                        maybe = True
                        nextexcept = ('except', 'finally')
        if maybe:
            if lines[-1].strip() == '':
                lines[-1] += ls
            else:
                lines.append(ls)

        return ls.join(lines)

    def get_cell_as_executable_code(self):
        """Return cell contents as executable code"""
        start_pos, end_pos = self.__save_selection()
        self.select_current_cell()
        text = self.get_selection_as_executable_code()
        self.__restore_selection(start_pos, end_pos)
        return text

    def is_cell_separator(self, cursor=None, block=None):
        """Return True if cursor (or text block) is on a block separator"""
        assert cursor is not None or block is not None
        if cursor is not None:
            cursor0 = QTextCursor(cursor)
            cursor0.select(QTextCursor.BlockUnderCursor)
            text = to_text_string(cursor0.selectedText())
        else:
            text = to_text_string(block.text())
        return text.lstrip().startswith(self.CELL_SEPARATORS)

    def select_current_cell(self):
        """Select cell under cursor
        cell = group of lines separated by CELL_SEPARATORS"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.StartOfBlock)
        cur_pos = prev_pos = cursor.position()
        # Moving to the next line that is not a separator, if we are
        # exactly at one of them
        while self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        # If not, move backwards to find the previous separator
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.PreviousBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                if self.is_cell_separator(cursor):
                    return
                else:
                    break
        cursor.setPosition(prev_pos)
        cell_at_file_start = cursor.atStart()
        # Once we find it (or reach the beginning of the file)
        # move to the next separator (or the end of the file)
        # so we can grab the cell contents
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                cursor.movePosition(QTextCursor.EndOfBlock,
                                    QTextCursor.KeepAnchor)
                break
            prev_pos = cur_pos
        # Do nothing if we moved from beginning to end without
        # finding a separator
        if cell_at_file_start and cursor.atEnd():
            return
        self.setTextCursor(cursor)

    def go_to_next_cell(self):
        """Go to the next cell of lines"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.NextBlock)
        cur_pos = prev_pos = cursor.position()
        while not self.is_cell_separator(cursor):
            # Moving to the next code cell
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        self.setTextCursor(cursor)

    def get_line_count(self):
        """Return document total line number"""
        return self.blockCount()

    def __save_selection(self):
        """Save current cursor selection and return position bounds"""
        cursor = self.textCursor()
        return cursor.selectionStart(), cursor.selectionEnd()

    def __restore_selection(self, start_pos, end_pos):
        """Restore cursor selection from position bounds"""
        cursor = self.textCursor()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def __duplicate_line_or_selection(self, after_current_line=True):
        """Duplicate current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if not to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.PreviousBlock)
                end_pos = cursor.position()

        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                cursor_temp = QTextCursor(cursor)
                cursor_temp.clearSelection()
                cursor_temp.insertText(self.get_line_separator())
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        text = cursor.selectedText()
        cursor.clearSelection()

        if not after_current_line:
            # Moving cursor before current line/selected text
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos += len(text)
            end_pos += len(text)

        cursor.insertText(text)
        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)

    def duplicate_line(self):
        """
        Duplicate current line or selected text
        Paste the duplicated text *after* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=True)

    def copy_line(self):
        """
        Copy current line or selected text
        Paste the duplicated text *before* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=False)

    def __move_line_or_selection(self, after_current_line=True):
        """Move current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            # Check if start_pos is at the start of a block
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()

            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.NextBlock)
                end_pos = cursor.position()
        else:
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()
            cursor.movePosition(QTextCursor.NextBlock)
            end_pos = cursor.position()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)

        sel_text = to_text_string(cursor.selectedText())
        cursor.removeSelectedText()

        if after_current_line:
            text = to_text_string(cursor.block().text())
            start_pos += len(text) + 1
            end_pos += len(text) + 1
            cursor.movePosition(QTextCursor.NextBlock)
        else:
            cursor.movePosition(QTextCursor.PreviousBlock)
            text = to_text_string(cursor.block().text())
            start_pos -= len(text) + 1
            end_pos -= len(text) + 1
        cursor.insertText(sel_text)

        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)

    def move_line_up(self):
        """Move up current line or selected text"""
        self.__move_line_or_selection(after_current_line=False)

    def move_line_down(self):
        """Move down current line or selected text"""
        self.__move_line_or_selection(after_current_line=True)

    def extend_selection_to_complete_lines(self):
        """Extend current selection to complete lines"""
        cursor = self.textCursor()
        start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        if cursor.atBlockStart():
            cursor.movePosition(QTextCursor.PreviousBlock,
                                QTextCursor.KeepAnchor)
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def delete_line(self):
        """Delete current line"""
        cursor = self.textCursor()
        if self.has_selected_text():
            self.extend_selection_to_complete_lines()
            start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
            cursor.setPosition(start_pos)
        else:
            start_pos = end_pos = cursor.position()
        cursor.beginEditBlock()
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        cursor.removeSelectedText()
        cursor.endEditBlock()
        self.ensureCursorVisible()

    #------Code completion / Calltips
    def show_calltip(self,
                     title,
                     text,
                     color='#2D62FF',
                     at_line=None,
                     at_position=None):
        """Show calltip"""
        if text is None or len(text) == 0:
            return
        # Saving cursor position:
        if at_position is None:
            at_position = self.get_position('cursor')
        self.calltip_position = at_position
        # Preparing text:
        weight = 'bold' if self.calltip_font.bold() else 'normal'
        size = self.calltip_font.pointSize()
        family = self.calltip_font.family()
        format1 = '<div style=\'font-size: %spt; color: %s\'>' % (size, color)
        format2 = '<hr><div style=\'font-family: "%s"; font-size: %spt; font-weight: %s\'>' % (
            family, size, weight)
        if isinstance(text, list):
            text = "\n    ".join(text)
        text = text.replace('\n', '<br>')
        if len(text) > self.calltip_size:
            text = text[:self.calltip_size] + " ..."
        tiptext = format1 + ('<b>%s</b></div>' % title) \
                  + format2 + text + "</div>"
        # Showing tooltip at cursor position:
        cx, cy = self.get_coordinates('cursor')
        if at_line is not None:
            cx = 5
            cursor = QTextCursor(self.document().findBlockByNumber(at_line -
                                                                   1))
            cy = self.cursorRect(cursor).top()
        point = self.mapToGlobal(QPoint(cx, cy))
        point.setX(point.x() + self.get_linenumberarea_width())
        QToolTip.showText(point, tiptext)

    def hide_tooltip_if_necessary(self, key):
        """Hide calltip when necessary"""
        try:
            calltip_char = self.get_character(self.calltip_position)
            before = self.is_cursor_before(self.calltip_position,
                                           char_offset=1)
            other = key in (Qt.Key_ParenRight, Qt.Key_Period, Qt.Key_Tab)
            if calltip_char not in ('?', '(') or before or other:
                QToolTip.hideText()
        except (IndexError, TypeError):
            QToolTip.hideText()

    def show_completion_widget(self, textlist, automatic=True):
        """Show completion widget"""
        self.completion_widget.show_list(textlist, automatic=automatic)

    def hide_completion_widget(self):
        """Hide completion widget"""
        self.completion_widget.hide()

    def show_completion_list(self,
                             completions,
                             completion_text="",
                             automatic=True):
        """Display the possible completions"""
        if len(completions) == 0 or completions == [completion_text]:
            return
        self.completion_text = completion_text
        # Sorting completion list (entries starting with underscore are
        # put at the end of the list):
        underscore = set(
            [comp for comp in completions if comp.startswith('_')])
        completions = sorted(set(completions)-underscore, key=str_lower)+\
                      sorted(underscore, key=str_lower)
        self.show_completion_widget(completions, automatic=automatic)

    def select_completion_list(self):
        """Completion list is active, Enter was just pressed"""
        self.completion_widget.item_selected()

    def insert_completion(self, text):
        if text:
            cursor = self.textCursor()
            cursor.movePosition(QTextCursor.PreviousCharacter,
                                QTextCursor.KeepAnchor,
                                len(self.completion_text))
            cursor.removeSelectedText()
            self.insert_text(text)

    def is_completion_widget_visible(self):
        """Return True is completion list widget is visible"""
        return self.completion_widget.isVisible()

    #------Standard keys
    def stdkey_clear(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def stdkey_backspace(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def __get_move_mode(self, shift):
        return QTextCursor.KeepAnchor if shift else QTextCursor.MoveAnchor

    def stdkey_up(self, shift):
        self.moveCursor(QTextCursor.Up, self.__get_move_mode(shift))

    def stdkey_down(self, shift):
        self.moveCursor(QTextCursor.Down, self.__get_move_mode(shift))

    def stdkey_tab(self):
        self.insert_text(self.indent_chars)

    def stdkey_home(self, shift, ctrl, prompt_pos=None):
        """Smart HOME feature: cursor is first moved at 
        indentation position, then at the start of the line"""
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.Start, move_mode)
        else:
            cursor = self.textCursor()
            if prompt_pos is None:
                start_position = self.get_position('sol')
            else:
                start_position = self.get_position(prompt_pos)
            text = self.get_text(start_position, 'eol')
            indent_pos = start_position + len(text) - len(text.lstrip())
            if cursor.position() != indent_pos:
                cursor.setPosition(indent_pos, move_mode)
            else:
                cursor.setPosition(start_position, move_mode)
            self.setTextCursor(cursor)

    def stdkey_end(self, shift, ctrl):
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.End, move_mode)
        else:
            self.moveCursor(QTextCursor.EndOfBlock, move_mode)

    def stdkey_pageup(self):
        pass

    def stdkey_pagedown(self):
        pass

    def stdkey_escape(self):
        pass

    #----Qt Events
    def mousePressEvent(self, event):
        """Reimplement Qt method"""
        if os.name != 'posix' and event.button() == Qt.MidButton:
            self.setFocus()
            event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
            QPlainTextEdit.mousePressEvent(self, event)
            QPlainTextEdit.mouseReleaseEvent(self, event)
            self.paste()
        else:
            QPlainTextEdit.mousePressEvent(self, event)

    def focusInEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        self.emit(SIGNAL("focus_in()"))
        QPlainTextEdit.focusInEvent(self, event)

    def focusOutEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        QPlainTextEdit.focusOutEvent(self, event)

    def wheelEvent(self, event):
        """Reimplemented to emit zoom in/out signals when Ctrl is pressed"""
        # This feature is disabled on MacOS, see Issue 1510:
        # http://code.google.com/p/spyderlib/issues/detail?id=1510
        if sys.platform != 'darwin':
            if event.modifiers() & Qt.ControlModifier:
                if event.delta() < 0:
                    self.emit(SIGNAL("zoom_out()"))
                elif event.delta() > 0:
                    self.emit(SIGNAL("zoom_in()"))
                return
        QPlainTextEdit.wheelEvent(self, event)
Esempio n. 5
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class TextEditBaseWidget(QPlainTextEdit, BaseEditMixin):
    """Text edit base widget"""
    BRACE_MATCHING_SCOPE = ('sof', 'eof')
    CELL_SEPARATORS = ('#%%', '# %%', '# <codecell>')
    
    def __init__(self, parent=None):
        QPlainTextEdit.__init__(self, parent)
        BaseEditMixin.__init__(self)
        self.setAttribute(Qt.WA_DeleteOnClose)
        
        self.extra_selections_dict = {}
        
        self.connect(self, SIGNAL('textChanged()'), self.changed)
        self.connect(self, SIGNAL('cursorPositionChanged()'),
                     self.cursor_position_changed)
        
        self.indent_chars = " "*4
        
        # Code completion / calltips
        if parent is not None:
            mainwin = parent
            while not isinstance(mainwin, QMainWindow):
                mainwin = mainwin.parent()
                if mainwin is None:
                    break
            if mainwin is not None:
                parent = mainwin
        self.completion_widget = CompletionWidget(self, parent)
        self.codecompletion_auto = False
        self.codecompletion_case = True
        self.codecompletion_single = False
        self.codecompletion_enter = False
        self.calltips = True
        self.calltip_position = None
        self.calltip_size = 600
        self.calltip_font = QFont()
        self.completion_text = ""
        
        # Highlight current line color
        self.currentline_color = QColor(Qt.red).lighter(190)

        # Brace matching
        self.bracepos = None
        self.matched_p_color = QColor(Qt.green)
        self.unmatched_p_color = QColor(Qt.red)
        
    def setup_calltips(self, size=None, font=None):
        self.calltip_size = size
        self.calltip_font = font
    
    def setup_completion(self, size=None, font=None):
        self.completion_widget.setup_appearance(size, font)
        
    def set_indent_chars(self, indent_chars):
        self.indent_chars = indent_chars
        
    def set_palette(self, background, foreground):
        """
        Set text editor palette colors:
        background color and caret (text cursor) color
        """
        palette = QPalette()
        palette.setColor(QPalette.Base, background)
        palette.setColor(QPalette.Text, foreground)
        self.setPalette(palette)


    #------Line number area
    def get_linenumberarea_width(self):
        """Return line number area width"""
        # Implemented in CodeEditor, but needed here for completion widget
        return 0


    #------Extra selections
    def get_extra_selections(self, key):
        return self.extra_selections_dict.get(key, [])

    def set_extra_selections(self, key, extra_selections):
        self.extra_selections_dict[key] = extra_selections
        
    def update_extra_selections(self):
        extra_selections = []
        for key, extra in list(self.extra_selections_dict.items()):
            if key == 'current_line':
                # Python 3 compatibility (weird): current line has to be 
                # highlighted first
                extra_selections = extra + extra_selections
            else:
                extra_selections += extra
        self.setExtraSelections(extra_selections)
        
    def clear_extra_selections(self, key):
        self.extra_selections_dict[key] = []
        self.update_extra_selections()
        
        
    def changed(self):
        """Emit changed signal"""
        self.emit(SIGNAL('modificationChanged(bool)'),
                  self.document().isModified())


    #------Highlight current line
    def highlight_current_line(self):
        """Highlight current line"""
        selection = QTextEdit.ExtraSelection()
#        selection.format.setProperty(QTextFormat.FullWidthSelection,
#                                     QVariant(True))
        selection.format.setBackground(self.currentline_color)
        selection.cursor = self.textCursor()
        selection.cursor.clearSelection()
        self.set_extra_selections('current_line', [selection])
        self.update_extra_selections()

    def unhighlight_current_line(self):
        """Unhighlight current line"""
        self.clear_extra_selections('current_line')


    #------Brace matching
    def find_brace_match(self, position, brace, forward):
        start_pos, end_pos = self.BRACE_MATCHING_SCOPE
        if forward:
            bracemap = {'(': ')', '[': ']', '{': '}'}
            text = self.get_text(position, end_pos)
            i_start_open = 1
            i_start_close = 1
        else:
            bracemap = {')': '(', ']': '[', '}': '{'}
            text = self.get_text(start_pos, position)
            i_start_open = len(text)-1
            i_start_close = len(text)-1

        while True:
            if forward:
                i_close = text.find(bracemap[brace], i_start_close)
            else:
                i_close = text.rfind(bracemap[brace], 0, i_start_close+1)
            if i_close > -1:
                if forward:
                    i_start_close = i_close+1
                    i_open = text.find(brace, i_start_open, i_close)
                else:
                    i_start_close = i_close-1
                    i_open = text.rfind(brace, i_close, i_start_open+1)
                if i_open > -1:
                    if forward:
                        i_start_open = i_open+1
                    else:
                        i_start_open = i_open-1
                else:
                    # found matching brace
                    if forward:
                        return position+i_close
                    else:
                        return position-(len(text)-i_close)
            else:
                # no matching brace
                return
    
    def __highlight(self, positions, color=None, cancel=False):
        if cancel:
            self.clear_extra_selections('brace_matching')
            return
        extra_selections = []
        for position in positions:
            if position > self.get_position('eof'):
                return
            selection = QTextEdit.ExtraSelection()
            selection.format.setBackground(color)
            selection.cursor = self.textCursor()
            selection.cursor.clearSelection()
            selection.cursor.setPosition(position)
            selection.cursor.movePosition(QTextCursor.NextCharacter,
                                          QTextCursor.KeepAnchor)
            extra_selections.append(selection)
        self.set_extra_selections('brace_matching', extra_selections)
        self.update_extra_selections()

    def cursor_position_changed(self):
        """Brace matching"""
        if self.bracepos is not None:
            self.__highlight(self.bracepos, cancel=True)
            self.bracepos = None
        cursor = self.textCursor()
        if cursor.position() == 0:
            return
        cursor.movePosition(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        text = to_text_string(cursor.selectedText())
        pos1 = cursor.position()
        if text in (')', ']', '}'):
            pos2 = self.find_brace_match(pos1, text, forward=False)
        elif text in ('(', '[', '{'):
            pos2 = self.find_brace_match(pos1, text, forward=True)
        else:
            return
        if pos2 is not None:
            self.bracepos = (pos1, pos2)
            self.__highlight(self.bracepos, color=self.matched_p_color)
        else:
            self.bracepos = (pos1,)
            self.__highlight(self.bracepos, color=self.unmatched_p_color)


    #-----Widget setup and options
    def set_codecompletion_auto(self, state):
        """Set code completion state"""
        self.codecompletion_auto = state
        
    def set_codecompletion_case(self, state):
        """Case sensitive completion"""
        self.codecompletion_case = state
        self.completion_widget.case_sensitive = state
        
    def set_codecompletion_single(self, state):
        """Show single completion"""
        self.codecompletion_single = state
        self.completion_widget.show_single = state
        
    def set_codecompletion_enter(self, state):
        """Enable Enter key to select completion"""
        self.codecompletion_enter = state
        self.completion_widget.enter_select = state
        
    def set_calltips(self, state):
        """Set calltips state"""
        self.calltips = state

    def set_wrap_mode(self, mode=None):
        """
        Set wrap mode
        Valid *mode* values: None, 'word', 'character'
        """
        if mode == 'word':
            wrap_mode = QTextOption.WrapAtWordBoundaryOrAnywhere
        elif mode == 'character':
            wrap_mode = QTextOption.WrapAnywhere
        else:
            wrap_mode = QTextOption.NoWrap
        self.setWordWrapMode(wrap_mode)
        
        
    #------Reimplementing Qt methods
    def copy(self):
        """
        Reimplement Qt method
        Copy text to clipboard with correct EOL chars
        """
        QApplication.clipboard().setText(self.get_selected_text())
        

    #------Text: get, set, ...
    def get_selection_as_executable_code(self):
        """Return selected text as a processed text,
        to be executable in a Python/IPython interpreter"""
        ls = self.get_line_separator()
        
        _indent = lambda line: len(line)-len(line.lstrip())
        
        line_from, line_to = self.get_selection_bounds()
        text = self.get_selected_text()
        if not text:
            return

        lines = text.split(ls)
        if len(lines) > 1:
            # Multiline selection -> eventually fixing indentation
            original_indent = _indent(self.get_text_line(line_from))
            text = (" "*(original_indent-_indent(lines[0])))+text
            
        # If there is a common indent to all lines, find it.
        # Moving from bottom line to top line ensures that blank
        # lines inherit the indent of the line *below* it,
        # which is the desired behavior.
        min_indent = 999
        current_indent = 0
        lines = text.split(ls)
        for i in range(len(lines)-1, -1, -1):
            line = lines[i]
            if line.strip():
                current_indent = _indent(line)
                min_indent = min(current_indent, min_indent)
            else:
                lines[i] = ' ' * current_indent
        if min_indent:
            lines = [line[min_indent:] for line in lines]

        # Remove any leading whitespace or comment lines
        # since they confuse the reserved word detector that follows below
        first_line = lines[0].lstrip()
        while first_line == '' or first_line[0] == '#':
            lines.pop(0)
            first_line = lines[0].lstrip()
        
        # Add an EOL character after indentation blocks that start with some 
        # Python reserved words, so that it gets evaluated automatically
        # by the console
        varname = re.compile('[a-zA-Z0-9_]*') # matches valid variable names
        maybe = False
        nextexcept = ()
        for n, line in enumerate(lines):
            if not _indent(line):
                word = varname.match(line).group()
                if maybe and word not in nextexcept:
                    lines[n-1] += ls
                    maybe = False
                if word:
                    if word in ('def', 'for', 'while', 'with', 'class'):
                        maybe = True
                        nextexcept = ()
                    elif word == 'if':
                        maybe = True
                        nextexcept = ('elif', 'else')
                    elif word == 'try':
                        maybe = True
                        nextexcept = ('except', 'finally')
        if maybe:
            if lines[-1].strip() == '':
                lines[-1] += ls
            else:
                lines.append(ls)
        
        return ls.join(lines)

    def get_cell_as_executable_code(self):
        """Return cell contents as executable code"""
        start_pos, end_pos = self.__save_selection()
        self.select_current_cell()
        text = self.get_selection_as_executable_code()
        self.__restore_selection(start_pos, end_pos)
        return text

    def is_cell_separator(self, cursor=None, block=None):
        """Return True if cursor (or text block) is on a block separator"""
        assert cursor is not None or block is not None
        if cursor is not None:
            cursor0 = QTextCursor(cursor)
            cursor0.select(QTextCursor.BlockUnderCursor)
            text = to_text_string(cursor0.selectedText())
        else:
            text = to_text_string(block.text())
        return text.lstrip().startswith(self.CELL_SEPARATORS)

    def select_current_cell(self):
        """Select cell under cursor
        cell = group of lines separated by CELL_SEPARATORS"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.StartOfBlock)
        cur_pos = prev_pos = cursor.position()
        # Moving to the next line that is not a separator, if we are
        # exactly at one of them
        while self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        # If not, move backwards to find the previous separator
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.PreviousBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                if self.is_cell_separator(cursor):
                    return
                else:
                    break
        cursor.setPosition(prev_pos)
        cell_at_file_start = cursor.atStart()
        # Once we find it (or reach the beginning of the file)
        # move to the next separator (or the end of the file)
        # so we can grab the cell contents
        while not self.is_cell_separator(cursor):
            cursor.movePosition(QTextCursor.NextBlock,
                                QTextCursor.KeepAnchor)
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                cursor.movePosition(QTextCursor.EndOfBlock,
                                    QTextCursor.KeepAnchor)
                break
            prev_pos = cur_pos
        # Do nothing if we moved from beginning to end without
        # finding a separator
        if cell_at_file_start and cursor.atEnd():
            return
        self.setTextCursor(cursor)

    def go_to_next_cell(self):
        """Go to the next cell of lines"""
        cursor = self.textCursor()
        cursor.movePosition(QTextCursor.NextBlock)
        cur_pos = prev_pos = cursor.position()
        while not self.is_cell_separator(cursor):
            # Moving to the next code cell
            cursor.movePosition(QTextCursor.NextBlock)
            prev_pos = cur_pos
            cur_pos = cursor.position()
            if cur_pos == prev_pos:
                return
        self.setTextCursor(cursor)

    def get_line_count(self):
        """Return document total line number"""
        return self.blockCount()

    def __save_selection(self):
        """Save current cursor selection and return position bounds"""
        cursor = self.textCursor()
        return cursor.selectionStart(), cursor.selectionEnd()

    def __restore_selection(self, start_pos, end_pos):
        """Restore cursor selection from position bounds"""
        cursor = self.textCursor()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)

    def __duplicate_line_or_selection(self, after_current_line=True):
        """Duplicate current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if not to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.PreviousBlock)
                end_pos = cursor.position()
            
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                cursor_temp = QTextCursor(cursor)
                cursor_temp.clearSelection()
                cursor_temp.insertText(self.get_line_separator())
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)            
        text = cursor.selectedText()
        cursor.clearSelection()
        
        if not after_current_line:
            # Moving cursor before current line/selected text
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos += len(text)
            end_pos += len(text)
        
        cursor.insertText(text)
        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)
    
    def duplicate_line(self):
        """
        Duplicate current line or selected text
        Paste the duplicated text *after* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=True)
    
    def copy_line(self):
        """
        Copy current line or selected text
        Paste the duplicated text *before* the current line/selected text
        """
        self.__duplicate_line_or_selection(after_current_line=False)
        
    def __move_line_or_selection(self, after_current_line=True):
        """Move current line or selected text"""
        cursor = self.textCursor()
        cursor.beginEditBlock()
        start_pos, end_pos = self.__save_selection()
        if to_text_string(cursor.selectedText()):
            # Check if start_pos is at the start of a block
            cursor.setPosition(start_pos)
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()

            cursor.setPosition(end_pos)
            # Check if end_pos is at the start of a block: if so, starting
            # changes from the previous block
            cursor.movePosition(QTextCursor.StartOfBlock,
                                QTextCursor.KeepAnchor)
            if to_text_string(cursor.selectedText()):
                cursor.movePosition(QTextCursor.NextBlock)
                end_pos = cursor.position()
        else:
            cursor.movePosition(QTextCursor.StartOfBlock)
            start_pos = cursor.position()
            cursor.movePosition(QTextCursor.NextBlock)
            end_pos = cursor.position()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        
        sel_text = to_text_string(cursor.selectedText())
        cursor.removeSelectedText()
        
        if after_current_line:
            text = to_text_string(cursor.block().text())
            start_pos += len(text)+1
            end_pos += len(text)+1
            cursor.movePosition(QTextCursor.NextBlock)
        else:
            cursor.movePosition(QTextCursor.PreviousBlock)
            text = to_text_string(cursor.block().text())
            start_pos -= len(text)+1
            end_pos -= len(text)+1
        cursor.insertText(sel_text)

        cursor.endEditBlock()
        self.setTextCursor(cursor)
        self.__restore_selection(start_pos, end_pos)
    
    def move_line_up(self):
        """Move up current line or selected text"""
        self.__move_line_or_selection(after_current_line=False)
        
    def move_line_down(self):
        """Move down current line or selected text"""
        self.__move_line_or_selection(after_current_line=True)
        
    def extend_selection_to_complete_lines(self):
        """Extend current selection to complete lines"""
        cursor = self.textCursor()
        start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
        cursor.setPosition(start_pos)
        cursor.setPosition(end_pos, QTextCursor.KeepAnchor)
        if cursor.atBlockStart():
            cursor.movePosition(QTextCursor.PreviousBlock,
                                QTextCursor.KeepAnchor)
            cursor.movePosition(QTextCursor.EndOfBlock,
                                QTextCursor.KeepAnchor)
        self.setTextCursor(cursor)
        
    def delete_line(self):
        """Delete current line"""
        cursor = self.textCursor()
        if self.has_selected_text():
            self.extend_selection_to_complete_lines()
            start_pos, end_pos = cursor.selectionStart(), cursor.selectionEnd()
            cursor.setPosition(start_pos)
        else:
            start_pos = end_pos = cursor.position()
        cursor.beginEditBlock()
        cursor.setPosition(start_pos)
        cursor.movePosition(QTextCursor.StartOfBlock)
        while cursor.position() <= end_pos:
            cursor.movePosition(QTextCursor.EndOfBlock, QTextCursor.KeepAnchor)
            if cursor.atEnd():
                break
            cursor.movePosition(QTextCursor.NextBlock, QTextCursor.KeepAnchor)
        cursor.removeSelectedText()
        cursor.endEditBlock()
        self.ensureCursorVisible()


    #------Code completion / Calltips
    def show_calltip(self, title, text, color='#2D62FF',
                     at_line=None, at_position=None):
        """Show calltip"""
        if text is None or len(text) == 0:
            return
        # Saving cursor position:
        if at_position is None:
            at_position = self.get_position('cursor')
        self.calltip_position = at_position
        # Preparing text:
        weight = 'bold' if self.calltip_font.bold() else 'normal'
        size = self.calltip_font.pointSize()
        family = self.calltip_font.family()
        format1 = '<div style=\'font-size: %spt; color: %s\'>' % (size, color)
        format2 = '<hr><div style=\'font-family: "%s"; font-size: %spt; font-weight: %s\'>' % (family, size, weight)
        if isinstance(text, list):
            text = "\n    ".join(text)
        text = text.replace('\n', '<br>')
        if len(text) > self.calltip_size:
            text = text[:self.calltip_size] + " ..."
        tiptext = format1 + ('<b>%s</b></div>' % title) \
                  + format2 + text + "</div>"
        # Showing tooltip at cursor position:
        cx, cy = self.get_coordinates('cursor')
        if at_line is not None:
            cx = 5
            cursor = QTextCursor(self.document().findBlockByNumber(at_line-1))
            cy = self.cursorRect(cursor).top()
        point = self.mapToGlobal(QPoint(cx, cy))
        point.setX(point.x()+self.get_linenumberarea_width())
        QToolTip.showText(point, tiptext)

    def hide_tooltip_if_necessary(self, key):
        """Hide calltip when necessary"""
        try:
            calltip_char = self.get_character(self.calltip_position)
            before = self.is_cursor_before(self.calltip_position,
                                           char_offset=1)
            other = key in (Qt.Key_ParenRight, Qt.Key_Period, Qt.Key_Tab)
            if calltip_char not in ('?', '(') or before or other:
                QToolTip.hideText()
        except (IndexError, TypeError):
            QToolTip.hideText()

    def show_completion_widget(self, textlist, automatic=True):
        """Show completion widget"""
        self.completion_widget.show_list(textlist, automatic=automatic)
        
    def hide_completion_widget(self):
        """Hide completion widget"""
        self.completion_widget.hide()

    def show_completion_list(self, completions, completion_text="",
                             automatic=True):
        """Display the possible completions"""
        if len(completions) == 0 or completions == [completion_text]:
            return
        self.completion_text = completion_text
        # Sorting completion list (entries starting with underscore are 
        # put at the end of the list):
        underscore = set([comp for comp in completions
                          if comp.startswith('_')])
        completions = sorted(set(completions)-underscore, key=str_lower)+\
                      sorted(underscore, key=str_lower)
        self.show_completion_widget(completions, automatic=automatic)
        
    def select_completion_list(self):
        """Completion list is active, Enter was just pressed"""
        self.completion_widget.item_selected()
        
    def insert_completion(self, text):
        if text:
            cursor = self.textCursor()
            cursor.movePosition(QTextCursor.PreviousCharacter,
                                QTextCursor.KeepAnchor,
                                len(self.completion_text))
            cursor.removeSelectedText()
            self.insert_text(text)

    def is_completion_widget_visible(self):
        """Return True is completion list widget is visible"""
        return self.completion_widget.isVisible()
    
        
    #------Standard keys
    def stdkey_clear(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.NextCharacter, QTextCursor.KeepAnchor)
        self.remove_selected_text()
    
    def stdkey_backspace(self):
        if not self.has_selected_text():
            self.moveCursor(QTextCursor.PreviousCharacter,
                            QTextCursor.KeepAnchor)
        self.remove_selected_text()

    def __get_move_mode(self, shift):
        return QTextCursor.KeepAnchor if shift else QTextCursor.MoveAnchor

    def stdkey_up(self, shift):
        self.moveCursor(QTextCursor.Up, self.__get_move_mode(shift))

    def stdkey_down(self, shift):
        self.moveCursor(QTextCursor.Down, self.__get_move_mode(shift))

    def stdkey_tab(self):
        self.insert_text(self.indent_chars)

    def stdkey_home(self, shift, ctrl, prompt_pos=None):
        """Smart HOME feature: cursor is first moved at 
        indentation position, then at the start of the line"""
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.Start, move_mode)
        else:
            cursor = self.textCursor()
            if prompt_pos is None:
                start_position = self.get_position('sol')
            else:
                start_position = self.get_position(prompt_pos)
            text = self.get_text(start_position, 'eol')
            indent_pos = start_position+len(text)-len(text.lstrip())
            if cursor.position() != indent_pos:
                cursor.setPosition(indent_pos, move_mode)
            else:
                cursor.setPosition(start_position, move_mode)
            self.setTextCursor(cursor)

    def stdkey_end(self, shift, ctrl):
        move_mode = self.__get_move_mode(shift)
        if ctrl:
            self.moveCursor(QTextCursor.End, move_mode)
        else:
            self.moveCursor(QTextCursor.EndOfBlock, move_mode)

    def stdkey_pageup(self):
        pass

    def stdkey_pagedown(self):
        pass

    def stdkey_escape(self):
        pass

                
    #----Qt Events
    def mousePressEvent(self, event):
        """Reimplement Qt method"""
        if os.name != 'posix' and event.button() == Qt.MidButton:
            self.setFocus()
            event = QMouseEvent(QEvent.MouseButtonPress, event.pos(),
                                Qt.LeftButton, Qt.LeftButton, Qt.NoModifier)
            QPlainTextEdit.mousePressEvent(self, event)
            QPlainTextEdit.mouseReleaseEvent(self, event)
            self.paste()
        else:
            QPlainTextEdit.mousePressEvent(self, event)

    def focusInEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        self.emit(SIGNAL("focus_in()"))
        QPlainTextEdit.focusInEvent(self, event)
        
    def focusOutEvent(self, event):
        """Reimplemented to handle focus"""
        self.emit(SIGNAL("focus_changed()"))
        QPlainTextEdit.focusOutEvent(self, event)
    
    def wheelEvent(self, event):
        """Reimplemented to emit zoom in/out signals when Ctrl is pressed"""
        # This feature is disabled on MacOS, see Issue 1510:
        # http://code.google.com/p/spyderlib/issues/detail?id=1510
        if sys.platform != 'darwin':
            if event.modifiers() & Qt.ControlModifier:
                if event.delta() < 0:
                    self.emit(SIGNAL("zoom_out()"))
                elif event.delta() > 0:
                    self.emit(SIGNAL("zoom_in()"))
                return
        QPlainTextEdit.wheelEvent(self, event)
Esempio n. 6
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class ConfigDialog(QDialog):
    def __init__(self, parent=None):
        QDialog.__init__(self, parent)
        self._layout = QVBoxLayout(self)
        self._tabdialog = QTabWidget(self)
        self._layout.addWidget(self._tabdialog)
        w = _config_dialog.Ui_config_dialog()
        w.setupUi(self._tabdialog)
        self.widgets = w
        
        self._buttonbox = QDialogButtonBox(QDialogButtonBox.Save|QDialogButtonBox.Cancel)
        self._buttonbox.setParent(self)
        signal_connect(self._buttonbox, SIGNAL("accepted()"), self.accept)
        signal_connect(self._buttonbox, SIGNAL("rejected()"), self.reject)
        self._layout.addWidget(self._buttonbox)
        
        self._layout.setContentsMargins(3,3,3,3)
        
        self.font = QFont()
        self.color = QColor()
        
        self.config = yobot_interfaces.component_registry.get_component("client-config")
        
        self.account_items = {}
        
        signal_connect(w.account_add, SIGNAL("clicked()"), lambda: self.add_modify_account(add=True))
        signal_connect(w.account_edit, SIGNAL("clicked()"), lambda: self.add_modify_account(add=False))
        signal_connect(w.account_del, SIGNAL("clicked()"), self.remove_account)
        
        signal_connect(w.select_color, SIGNAL("clicked()"), lambda: self.change_formatting(color=True))
        signal_connect(w.select_font, SIGNAL("clicked()"), lambda: self.change_formatting(font=True))
        
        signal_connect(w.agent_address, SIGNAL("editingFinished()"), self.change_agent)
        self.connect_global_bool(w.html_relsize, "appearance", "use_html_relsize")
        self.connect_global_bool(w.show_joinpart, "appearance", "show_joinpart")
        self.input_validated = True
        
        self.setWindowTitle("Yobot Configuration")
        
    def connect_global_bool(self, widget, dictname, optname, default=False):
        signal_connect(widget, SIGNAL("toggled(bool)"),
                       lambda b: self.config.globals.setdefault(dictname, {}).__setitem__(optname, b))
        
    def load_settings(self):
        w = self.widgets
        if not self.config:
            log_warn("config object not available! bailing")
            return
        #for font..
        appearance = self.config.globals.setdefault("appearance", {})
        family = appearance.get("font_family", None)
        size = appearance.get("font_size", None)
        color = appearance.get("font_color", None)
        
        if family: self.font.setFamily(family)
        if size: self.font.setPointSize(size)
        if color: self.color.setNamedColor(color)
        
        bold = appearance.get("font_bold", False)
        italic = appearance.get("font_italic", False)
        underline = appearance.get("font_underline", False)
        html_relsize = appearance.get("use_html_relsize", False)
        show_joinpart = appearance.get("show_joinpart", False)
        
        self.font.setBold(bold)
        self.font.setItalic(italic)
        self.font.setUnderline(underline)
        w.html_relsize.setChecked(html_relsize)
        w.show_joinpart.setChecked(show_joinpart)
        
        self.change_formatting()
        
        #for the agent...
        agent = self.config.globals.get("agent_address", None)
        if agent: w.agent_address.setText(agent)
        self.change_agent()
        #for accounts:
        for a in self.config.accounts:
            log_warn("got account", a)
            if a.get("name", None) and a.get("improto", None):
                #get name and icon
                name, icon = getProtoIconAndName(getattr(yobotproto, a["improto"], ""))
                log_debug(icon, name)
                i = QTreeWidgetItem((a["name"], name))
                i.setIcon(1, icon)
                i.setData(0, ITEM_PLACEHOLDER_ROLE, a)
                self.account_items[i] = a
                self.widgets.accounts.addTopLevelItem(i)
                
    
    def remove_account(self):
        #get current item:
        w = self.widgets
        item = w.accounts.currentItem()
        
        #get the index (ugh.. this is tedious)
        itemindex = w.accounts.indexOfTopLevelItem(item)
        if itemindex == -1:
            log_err("couldn't get index!")
            return
        
        account = self.account_items[item]
        #remove the item from the widget:
        w.accounts.takeTopLevelItem(itemindex)
        
        #find the account in our global config list
        index = -1
        for i in xrange(0, len(self.config.accounts)):
            a = self.config.accounts[i]
            if str(a["name"]) == str(account["name"]) and str(a["improto"]) == str(account["improto"]):
                index = i
                break
            else:
                pass
        if index >= 0:
            log_debug("index:", index)
            self.config.accounts.pop(index)
        #finally, remove it from the mapping
        self.account_items.pop(item)
    
    def add_modify_account(self, add=False):
        dlg = AccountSettingsDialog(self)
        if not add:
            item = self.widgets.accounts.currentItem()
            if not item:
                return
            account = self.account_items.get(item)
            if not account:
                return
            #account = item.data(0, ITEM_PLACEHOLDER_ROLE).toPyObject()
            dlg.fill_from(account)
        else:
            item = QTreeWidgetItem()
        result = dlg.exec_()
        
        if not result == QDialog.Accepted:
            return
        new_a = dlg.values
        
        item.setText(0, new_a["name"])
        #get icon and name...
        name, icon = getProtoIconAndName(getattr(yobotproto, new_a["improto"], -1))
        item.setText(1, name)
        item.setIcon(1, icon)
        if add:
            if self.account_exists(new_a):
                print "account already exists.. not adding"
                return
            item.setData(0, ITEM_PLACEHOLDER_ROLE, new_a)
            self.widgets.accounts.addTopLevelItem(item)
            self.config.accounts.append(new_a)
        else:
            account.update(new_a)
            
    def account_exists(self, d):
        for a in self.config.accounts:
            if d["name"] == a["name"] and d["improto"] == a["improto"]:
                return True
        return False
    
    def change_formatting(self, color=False, font=False):
        if color:
            _color = QColorDialog.getColor(self.color, self, "Select Color")
            if _color.isValid():
                self.color = _color
        elif font:
            self.font, _ = QFontDialog.getFont(self.font, self, "Select Font")
            
        widgetformatter(self.widgets.sample_text, self.font, self.color,
                        klass="QPlainTextEdit")
        
        #now, change the config objects..
        fmt = self.config.globals["appearance"]
        fmt.update({
            "font_family":str(self.font.family()),
            "font_size":int(self.font.pointSize()),
            "font_color":str(self.color.name()),
            "font_bold":bool(self.font.bold()),
            "font_italic":bool(self.font.italic()),
            "font_underline":bool(self.font.underline())
        })
    
    def change_agent(self):
        #bah.. the same boring thing as always
        s = str(self.widgets.agent_address.text())
        if len(s.rsplit(":", 1)) == 2 and not str.isdigit(s.rsplit(":",1)[1]):
            self.input_validated = False
            self.widgets.agent_address.setStyleSheet("background-color:red;")
        else:
            self.widgets.agent_address.setStyleSheet("background-color:green")
            if s:
                self.config.globals["agent_address"] = str(s)
            self.input_validated = True
            
            
    
    def accept(self):
        #do some stuff first, like save
        if self.input_validated:
            self.config.save()
            QDialog.accept(self)
        else:
            QErrorMessage(self).showMessage("Bad input.. (somewhere?)")