def key_event_sequence(event):
        val = event.key()
        mod = event.modifiers()
        if mod & Qt.ShiftModifier:
            val += Qt.SHIFT
        if mod & Qt.ControlModifier:
            val += Qt.CTRL
        if mod & Qt.AltModifier:
            val += Qt.ALT
        if mod & Qt.MetaModifier:
            val += Qt.META
        return QKeySequence(val) 

def onKeyPressEvent(self, e):
        if not e.isAutoRepeat():
            keys = e.key()
            modifiers = e.modifiers()

            if modifiers & Qt.ShiftModifier:
                keys += Qt.SHIFT
            if modifiers & Qt.ControlModifier:
                keys += Qt.CTRL
            if modifiers & Qt.AltModifier:
                keys += Qt.ALT
            if modifiers & Qt.MetaModifier:
                keys += Qt.META

            if QKeySequence(keys) in self._go_key_sequence:
                self.go()
            elif e.key() == Qt.Key_Space:
                if qApp.keyboardModifiers() == Qt.ShiftModifier:
                    cue = self.current_cue()
                    if cue is not None:
                        self.edit_cue(cue)
                elif qApp.keyboardModifiers() == Qt.ControlModifier:
                    item = self.current_item()
                    if item is not None:
                        item.selected = not item.selected
            else:
                self.key_pressed.emit(e)

        e.accept() 

def init(self):
        self.setUtf8(True)
        lexer = QsciLexerJSON(self)
        self.setLexer(lexer)
        self.setAutoCompletionCaseSensitivity(False)  # 忽略大小写
        self.setAutoCompletionSource(self.AcsAll)
        self.setAutoCompletionThreshold(1)  # 一个字符就弹出补全
        self.setAutoIndent(True)  # 自动缩进
        self.setBackspaceUnindents(True)
        self.setBraceMatching(self.StrictBraceMatch)
        self.setIndentationGuides(True)
        self.setIndentationsUseTabs(False)
        self.setIndentationWidth(4)
        self.setTabIndents(True)
        self.setTabWidth(4)
        self.setWhitespaceSize(1)
        self.setWhitespaceVisibility(self.WsVisible)
        self.setWhitespaceForegroundColor(Qt.gray)
        self.setWrapIndentMode(self.WrapIndentFixed)
        self.setWrapMode(self.WrapWord)
        # 折叠
        self.setFolding(self.BoxedTreeFoldStyle, 2)
        self.setFoldMarginColors(QColor("#676A6C"), QColor("#676A6D"))
        font = self.font() or QFont()
        font.setFamily("Consolas")
        font.setFixedPitch(True)
        font.setPointSize(13)
        self.setFont(font)
        self.setMarginsFont(font)
        self.fontmetrics = QFontMetrics(font)
        lexer.setFont(font)
        self.setMarginWidth(0, self.fontmetrics.width(str(self.lines())) + 6)
        self.setMarginLineNumbers(0, True)
        self.setMarginsBackgroundColor(QColor("gainsboro"))
        self.setMarginWidth(1, 0)
        self.setMarginWidth(2, 14)  # 折叠区域
        # 绑定自动补齐热键Alt+/
        completeKey = QShortcut(QKeySequence(Qt.ALT + Qt.Key_Slash), self)
        completeKey.setContext(Qt.WidgetShortcut)
        completeKey.activated.connect(self.autoCompleteFromAll) 

def __init__(self, parent=None, plugins=None, fullscreen=False):
        super(DeenGui, self).__init__(parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.plugins = plugins
        self.widgets = []
        self.ui.actionLoad_from_file.triggered.connect(self.load_from_file)
        self.ui.actionQuit.triggered.connect(QApplication.quit)
        self.ui.actionAbout.triggered.connect(self.show_about)
        self.ui.actionStatus_console.triggered.connect(self.show_status_console)
        self.ui.actionTop_to_bottom.triggered.connect(self.set_widget_direction_toptobottom)
        self.ui.actionLeft_to_right.triggered.connect(self.set_widget_direction_lefttoright)
        # Set default direction
        self.set_widget_direction_toptobottom()
        self.ui.actionCopy_to_clipboard.triggered.connect(self.copy_content_to_clipboard)
        self.ui.actionSave_content_to_file.triggered.connect(self.save_widget_content_to_file)
        self.ui.actionSearch.triggered.connect(self.toggle_search_box_visibility)
        self.widgets.append(DeenEncoderWidget(self))
        for widget in self.widgets:
            self.ui.encoder_widget_layout.addWidget(widget)
        self.load_from_file_dialog = QFileDialog(self)
        self.setWindowTitle('deen')
        self.log = DeenLogger(self)
        self.widgets[0].set_field_focus()
        # Add action fuzzy search
        self.fuzzy_search_ui = FuzzySearchUi(self)
        self.fuzzy_search_action_shortcut = QShortcut(QKeySequence(Qt.CTRL | Qt.Key_R), self)
        self.fuzzy_search_action_shortcut.activated.connect(self.fuzzy_search_action)
        self.clear_current_widget_shortcut = QShortcut(QKeySequence(Qt.CTRL | Qt.Key_Q), self)
        self.clear_current_widget_shortcut.activated.connect(self.clear_current_widget)
        self.hide_search_box_shortcut = QShortcut(QKeySequence(Qt.CTRL | Qt.Key_F), self)
        self.hide_search_box_shortcut.activated.connect(self.toggle_search_box_visibility)
        self.next_encoder_widget_shortcut = QShortcut(QKeySequence(Qt.ALT | Qt.Key_Right), self)
        self.next_encoder_widget_shortcut.activated.connect(self.toggle_next_encoder_focus)
        self.prev_encoder_widget_shortcut = QShortcut(QKeySequence(Qt.ALT | Qt.Key_Left), self)
        self.prev_encoder_widget_shortcut.activated.connect(self.toggle_prev_encoder_focus)
        if fullscreen:
            self.showMaximized()
        self.show()