glyphCellView.py 文件源码

def mouseMoveEvent(self, event):
        if event.buttons() & (Qt.LeftButton | Qt.RightButton):
            index = self._findIndexForEvent(event, True)
            if index == self._lastSelectedCell:
                return
            if self.maybeExecuteDrag(event):
                return
            self.scrollToCell(index)
            if index >= len(self._glyphs):
                return

            modifiers = event.modifiers()
            if modifiers & Qt.ControlModifier:
                if index in self._selection and index in self._oldSelection:
                    self._selection.remove(index)
                elif index not in self._selection and \
                        index not in self._oldSelection:
                    self._selection.add(index)
            elif modifiers & Qt.ShiftModifier:
                self._selection = self._linearSelection(index)
            else:
                self._selection = {index}
            self._lastSelectedCell = index
            self.selectionChanged.emit()
            self.update()
        else:
            super(GlyphCellWidget, self).mouseMoveEvent(event)