Python QTableView.keyPressEvent方法代码示例

# 需要导入模块: from PyQt5.QtWidgets import QTableView [as 别名]
# 或者: from PyQt5.QtWidgets.QTableView import keyPressEvent [as 别名]
 def keyPressEvent(self, event):
     self.firstrelease = True
     event_check = int(event.key())
     # event = event.key
     self.keylist.append(event_check)
     # print(self.keylist)
     Key_Control = 16777249
     Shift_Control = 16777248
     if event.key() == (Qt.Key_F1):  # It should show if there action not activated
         self.parent.showHelpMenu()
         return
     if Key_Control not in self.keylist:  # or  Qt.Key_Shift not in self.keylist:
         # print('Choice 1')
         QTableView.keyPressEvent(self, event)
         return

# 需要导入模块: from PyQt5.QtWidgets import QTableView [as 别名]
# 或者: from PyQt5.QtWidgets.QTableView import keyPressEvent [as 别名]

#.........这里部分代码省略.........
    filter_line_edit.setMaximumWidth(200)
    filter_line_edit.setPlaceholderText('Filter name')
    filter_line_edit.setToolTip('Filter name optionally using regular expressions (' + QKeySequence(QKeySequence.Find).toString() + ')')
    filter_line_edit.textChanged.connect(filter_changed)
    tool_bar.addWidget(filter_line_edit)

    # actions to toggle visibility of available sizes/columns 
    def action_toggled(index):
        column = 2 + index
        table_view.setColumnHidden(column, not table_view.isColumnHidden(column))
        table_view.resizeColumnsToContents()
        table_view.resizeRowsToContents()
    signal_mapper = QSignalMapper()
    for i, size in enumerate(all_sizes):
        action = QAction('%dx%d' % size, tool_bar)
        action.setCheckable(True)
        action.setChecked(True)
        tool_bar.addAction(action)
        action.toggled.connect(signal_mapper.map)
        signal_mapper.setMapping(action, i)
        # set tool tip and handle key sequence
        tool_tip = 'Toggle visibility of column'
        if i < 10:
            digit = ('%d' % (i + 1))[-1]
            tool_tip += ' (%s)' % QKeySequence('Ctrl+%s' % digit).toString()
        action.setToolTip(tool_tip)
    signal_mapper.mapped.connect(action_toggled)

    # label columns
    header_labels = ['context', 'name']
    for width, height in all_sizes:
        header_labels.append('%dx%d' % (width, height))
    item_model.setColumnCount(len(header_labels))
    item_model.setHorizontalHeaderLabels(header_labels)

    # fill rows
    item_model.setRowCount(len(icons))
    for row, icon_data in enumerate(icons):
        # context
        item = QStandardItem(icon_data['context'])
        item.setFlags(item.flags() ^ Qt.ItemIsEditable)
        item_model.setItem(row, 0, item)
        # icon name
        item = QStandardItem(icon_data['icon_name'])
        item.setFlags(item.flags() ^ Qt.ItemIsEditable)
        item_model.setItem(row, 1, item)
        for index_in_all_sizes, size in enumerate(all_sizes):
            column = 2 + index_in_all_sizes
            if size in icon_data['sizes']:
                # icon as pixmap to keep specific size
                item = QStandardItem('')
                pixmap = icon_data['icon'].pixmap(size[0], size[1])
                item.setData(pixmap, Qt.DecorationRole)
                item.setFlags(item.flags() ^ Qt.ItemIsEditable)
                item_model.setItem(row, column, item)
            else:
                # single space to be sortable against icons
                item = QStandardItem(' ')
                item.setFlags(item.flags() ^ Qt.ItemIsEditable)
                item_model.setItem(row, column, item)

    table_view.resizeColumnsToContents()
    # manually set row heights because resizeRowsToContents is not working properly
    for row, icon_data in enumerate(icons):
        if len(icon_data['sizes']) > 0:
            max_size = icon_data['sizes'][-1]
            table_view.setRowHeight(row, max_size[1])

    # enable focus find (ctrl+f) and toggle columns (ctrl+NUM)
    def main_window_keyPressEvent(self, event, old_keyPressEvent=QMainWindow.keyPressEvent):
        if event.matches(QKeySequence.Find):
            filter_line_edit.setFocus()
            return
        if event.modifiers() == Qt.ControlModifier and event.key() >= Qt.Key_0 and event.key() <= Qt.Key_9:
            index = event.key() - Qt.Key_1
            if event.key() == Qt.Key_0:
                index += 10
            action = signal_mapper.mapping(index)
            if action:
                action.toggle()
                return
        old_keyPressEvent(self, event)
    main_window.keyPressEvent = MethodType(main_window_keyPressEvent, table_view)

    # enable copy (ctrl+c) name of icon to clipboard
    def table_view_keyPressEvent(self, event, old_keyPressEvent=QTableView.keyPressEvent):
        if event.matches(QKeySequence.Copy):
            selection_model = self.selectionModel()
            if selection_model.hasSelection():
                index = selection_model.selectedRows()[0]
                source_index = self.model().mapToSource(index)
                item = self.model().sourceModel().item(source_index.row(), 1)
                icon_name = item.data(Qt.EditRole)
                app.clipboard().setText(icon_name.toString())
                return
        old_keyPressEvent(self, event)
    table_view.keyPressEvent = MethodType(table_view_keyPressEvent, table_view)

    main_window.showMaximized()
    return app.exec_()