Python PyQt5.QtCore.Qt.Key_Left() Examples

def keyPressEvent(self, event):
        if not self.isStarted or BOARD_DATA.currentShape == Shape.shapeNone:
            super(Tetris, self).keyPressEvent(event)
            return

        key = event.key()
        
        if key == Qt.Key_P:
            self.pause()
            return
            
        if self.isPaused:
            return
        elif key == Qt.Key_Left:
            BOARD_DATA.moveLeft()
        elif key == Qt.Key_Right:
            BOARD_DATA.moveRight()
        elif key == Qt.Key_Up:
            BOARD_DATA.rotateLeft()
        elif key == Qt.Key_Space:
            self.tboard.score += BOARD_DATA.dropDown()
        else:
            super(Tetris, self).keyPressEvent(event)

        self.updateWindow() 

def left(self, count=1):
        self._key_press(Qt.Key_Left, count, 'scrollBarMinimum', Qt.Horizontal) 

def left(self):
        self.widget.switch_page(right=False)
        
        
        
    #def keyPressEvent(self, event):
        #这里event.key（）显示的是按键的编码
        #print("按下：" + str(event.key()))
        # 举例，这里Qt.Key_A注意虽然字母大写，但按键事件对大小写不敏感
        #if (event.key() == Qt.Key_Left):
        #    self.widget.switch_page(right=False)
        #elif (event.key() == Qt.Key_Right):
        #    self.widget.switch_page(right=True)
        #elif (event.modifiers() == Qt.CTRL and event.key() == Qt.Key_Plus):
        #    self.widget.zoom_book(plus=True)
        #elif (event.modifiers() == Qt.CTRL and event.key() == Qt.Key_Minus):
        #    self.widget.zoom_book(plus=False) 

def init_action(self):
        zoom_minus = QShortcut(QKeySequence("Ctrl+-"), self)
        zoom_minus.activated.connect(self.minus)       
        zoom_plus = QShortcut(QKeySequence("Ctrl+="), self)
        zoom_plus.activated.connect(self.plus) 
        
        switch_left = QShortcut(QKeySequence(Qt.Key_Left), self)
        switch_left.activated.connect(self.left)       
        switch_right = QShortcut(QKeySequence(Qt.Key_Right), self)
        switch_right.activated.connect(self.right) 
        
        
        '''
        a1 = QAction(self)
        a1.setShortcut('Ctrl++')
        self.addAction(a1)
        a1.triggered.connect(self.plus)
        
        a2 = QAction(self)
        a2.setShortcut('Ctrl+-')
        self.addAction(a2)
        a2.triggered.connect(self.minus)
        ''' 

def test_PythonProcessPane_parse_input_left_arrow_at_start_of_line(qtapp):
    """
    Left Arrow doesn't do anything if the current cursor position is at the
    start of the input line.
    """
    ppp = mu.interface.panes.PythonProcessPane()
    mock_cursor = mock.MagicMock()
    mock_cursor.position.return_value = 1
    ppp.start_of_current_line = 1
    ppp.textCursor = mock.MagicMock(return_value=mock_cursor)
    ppp.setTextCursor = mock.MagicMock()
    key = Qt.Key_Left
    text = ""
    modifiers = None
    ppp.parse_input(key, text, modifiers)
    assert mock_cursor.movePosition.call_count == 0
    assert ppp.setTextCursor.call_count == 0 

def test_PythonProcessPane_parse_input_left_arrow(qtapp):
    """
    Left Arrow causes the cursor to move to the left one place if not at the
    start of the input line.
    """
    ppp = mu.interface.panes.PythonProcessPane()
    mock_cursor = mock.MagicMock()
    mock_cursor.position.return_value = 1
    ppp.start_of_current_line = 0
    ppp.textCursor = mock.MagicMock(return_value=mock_cursor)
    ppp.setTextCursor = mock.MagicMock()
    key = Qt.Key_Left
    text = ""
    modifiers = None
    ppp.parse_input(key, text, modifiers)
    mock_cursor.movePosition.assert_called_once_with(QTextCursor.Left)
    ppp.setTextCursor.assert_called_once_with(mock_cursor) 

def keyPressEvent(self, event: QKeyEvent) -> None:

        if self.isReadOnly():
            return

        block: QTextBlock = self.textCursor().block()

        if event.key() in [Qt.Key_Down, Qt.Key_Up, Qt.Key_Left, Qt.Key_Right]:
            return

        if not event.key() == 16777220:
            super().keyPressEvent(event)

        if not isinstance(self.ignoreLength, bool):

            textToWrite: str = block.text()[self.ignoreLength:]

            # TODO: Handle multiline input!!!

            if event.key() == 16777220:
                self.userInputSignal.emit(textToWrite)
                return 

def keyPressEvent(self, event):
        #HOT KEYS
        key = event.key()

        # Duplicate the frame step size (speed) when pressed  > or .:
        if key == Qt.Key_Greater or key == Qt.Key_Period:
            self.frame_step *= 2
            self.ui.spinBox_step.setValue(self.frame_step)
            

        # Half the frame step size (speed) when pressed: < or ,
        elif key == Qt.Key_Less or key == Qt.Key_Comma:
            self.frame_step //= 2
            if self.frame_step < 1:
                self.frame_step = 1
            self.ui.spinBox_step.setValue(self.frame_step)
            

        # Move backwards when  are pressed
        elif key == Qt.Key_Left:
            self.frame_number -= self.frame_step
            if self.frame_number < 0:
                self.frame_number = 0
            self.ui.spinBox_frame.setValue(self.frame_number)
            

        # Move forward when  are pressed
        elif key == Qt.Key_Right:
            self.frame_number += self.frame_step
            if self.frame_number >= self.tot_frames:
                self.frame_number = self.tot_frames - 1
            self.ui.spinBox_frame.setValue(self.frame_number)
            
        #super().keyPressEvent(event) 

def keyPressEvent(self, event):
        if event.modifiers() & Qt.ShiftModifier \
                and event.key() in [Qt.Key_Up, Qt.Key_Down, Qt.Key_Left, Qt.Key_Right]:
            dlat = 1.0 / (self.radarwidget.zoom * self.radarwidget.ar)
            dlon = 1.0 / (self.radarwidget.zoom * self.radarwidget.flat_earth)
            if event.key() == Qt.Key_Up:
                self.radarwidget.panzoom(pan=(dlat, 0.0))
            elif event.key() == Qt.Key_Down:
                self.radarwidget.panzoom(pan=(-dlat, 0.0))
            elif event.key() == Qt.Key_Left:
                self.radarwidget.panzoom(pan=(0.0, -dlon))
            elif event.key() == Qt.Key_Right:
                self.radarwidget.panzoom(pan=(0.0, dlon))

        elif event.key() == Qt.Key_Escape:
            self.closeEvent()

        elif event.key() == Qt.Key_F11:  # F11 = Toggle Full Screen mode
            if not self.isFullScreen():
                self.showFullScreen()
            else:
                self.showNormal()

        else:
            # All other events go to the BlueSky console
            self.console.keyPressEvent(event)
        event.accept() 

def textChanged(self, e):  # QKeyEvent(QEvent.KeyPress, Qt.Key_Enter, Qt.NoModifier)
        # if (32<e.key()<96 or 123<e.key()<126 or 0x1000001<e.key()<0x1000005 or e.key==Qt.Key_Delete):
        # 大键盘为Ret小键盘为Enter
        if (e.key() in (Qt.Key_Return, Qt.Key_Enter, Qt.Key_Semicolon, Qt.Key_BraceRight, Qt.Key_Up, Qt.Key_Down,
                        Qt.Key_Left, Qt.Key_Right, Qt.Key_Tab, Qt.Key_Delete, Qt.Key_Backspace)):
            self.renderStyle()
            self.loadColorPanel()

        self.actions["undo"].setEnabled(self.editor.isUndoAvailable())
        self.actions["redo"].setEnabled(self.editor.isRedoAvailable()) 

def keyPressEvent(self, event):
		"""Keyboard press event

		Effective key: W, A, S, D, ↑,  ↓,  ←,  →
		Press a key on keyboard, the function will get an event, if the condition is met, call the function 
		run_action(). 

		Args:
			event, this argument will get when an event of keyboard pressed occured

		"""
		key_press = event.key()

		# don't need autorepeat, while haven't released, just run once
		if not event.isAutoRepeat():
			if key_press == Qt.Key_Up:			# up 
				run_action('camup')
			elif key_press == Qt.Key_Right:		# right
				run_action('camright')
			elif key_press == Qt.Key_Down:		# down
				run_action('camdown')
			elif key_press == Qt.Key_Left:		# left
				run_action('camleft')
			elif key_press == Qt.Key_W:			# W
				run_action('forward')
			elif key_press == Qt.Key_A:			# A
				run_action('fwleft')
			elif key_press == Qt.Key_S:			# S
				run_action('backward')
			elif key_press == Qt.Key_D:			# D
				run_action('fwright') 

def keyReleaseEvent(self, event):
		"""Keyboard released event

		Effective key: W,A,S,D, ↑,  ↓,  ←,  →
		Release a key on keyboard, the function will get an event, if the condition is met, call the function 
		run_action(). 

		Args:
			event, this argument will get when an event of keyboard release occured

		"""
		# don't need autorepeat, while haven't pressed, just run once
		key_release = event.key()
		if not event.isAutoRepeat():
			if key_release == Qt.Key_Up:		# up
				run_action('camready')
			elif key_release == Qt.Key_Right:	# right
				run_action('camready')
			elif key_release == Qt.Key_Down:	# down
				run_action('camready')
			elif key_release == Qt.Key_Left:	# left
				run_action('camready')
			elif key_release == Qt.Key_W:		# W
				run_action('stop')
			elif key_release == Qt.Key_A:		# A
				run_action('fwstraight')
			elif key_release == Qt.Key_S:		# S
				run_action('stop')
			elif key_release == Qt.Key_D:		# D
				run_action('fwstraight') 

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() 

def test_MicroPythonREPLPane_keyPressEvent_left(qtapp):
    """
    Ensure left arrows in the REPL are handled correctly.
    """
    mock_serial = mock.MagicMock()
    rp = mu.interface.panes.MicroPythonREPLPane(mock_serial)
    data = mock.MagicMock
    data.key = mock.MagicMock(return_value=Qt.Key_Left)
    data.text = mock.MagicMock(return_value="1b")
    data.modifiers = mock.MagicMock(return_value=None)
    rp.keyPressEvent(data)
    mock_serial.write.assert_called_once_with(b"\x1B[D") 

def keyPressEvent(self, event: QtGui.QKeyEvent) -> None:
        key_press = event.key()
        # if key_press == Qt.Key_Up:
        #     self.snake.direction = 'u'
        # elif key_press == Qt.Key_Down:
        #     self.snake.direction = 'd'
        # elif key_press == Qt.Key_Right:
        #     self.snake.direction = 'r'
        # elif key_press == Qt.Key_Left:
        #     self.snake.direction = 'l' 

def _qtKeyToUMKey(self, key):
        if key == Qt.Key_Shift:
            return KeyEvent.ShiftKey
        elif key == Qt.Key_Control:
            return KeyEvent.ControlKey
        elif key == Qt.Key_Alt:
            return KeyEvent.AltKey
        elif key == Qt.Key_Space:
            return KeyEvent.SpaceKey
        elif key == Qt.Key_Meta:
            return KeyEvent.MetaKey
        elif key == Qt.Key_Enter or key == Qt.Key_Return:
            return KeyEvent.EnterKey
        elif key == Qt.Key_Up:
            return KeyEvent.UpKey
        elif key == Qt.Key_Down:
            return KeyEvent.DownKey
        elif key == Qt.Key_Left:
            return KeyEvent.LeftKey
        elif key == Qt.Key_Right:
            return KeyEvent.RightKey
        elif key == Qt.Key_Minus:
            return KeyEvent.MinusKey
        elif key == Qt.Key_Underscore:
            return KeyEvent.UnderscoreKey
        elif key == Qt.Key_Plus:
            return KeyEvent.PlusKey
        elif key == Qt.Key_Equal:
            return KeyEvent.EqualKey

        return key 

def test_PythonProcessPane_parse_input_newline_with_cursor_midline(qtapp):
    """
    Ensure that when the cursor is placed in the middle of a line and enter is
    pressed the whole line is sent to std_in.
    """
    ppp = mu.interface.panes.PythonProcessPane()
    ppp.write_to_stdin = mock.MagicMock()
    ppp.parse_input(None, "abc", None)
    ppp.parse_input(Qt.Key_Left, None, None)
    ppp.parse_input(Qt.Key_Enter, "\r", None)
    ppp.write_to_stdin.assert_called_with(b"abc\n") 

def keyPressEvent(self, event):
		if not self.is_started or self.inner_board.current_tetris == tetrisShape().shape_empty:
			super(TetrisGame, self).keyPressEvent(event)
			return
		key = event.key()
		# P键暂停
		if key == Qt.Key_P:
			self.pause()
			return
		if self.is_paused:
			return
		# 向左
		elif key == Qt.Key_Left:
			self.inner_board.moveLeft()
		# 向右
		elif key == Qt.Key_Right:
			self.inner_board.moveRight()
		# 旋转
		elif key == Qt.Key_Up:
			self.inner_board.rotateAnticlockwise()
		# 快速坠落
		elif key == Qt.Key_Space:
			self.external_board.score += self.inner_board.dropDown()
		else:
			super(TetrisGame, self).keyPressEvent(event)
		self.updateWindow() 

def test_selection_cursor_left(self, qtbot, cmd_edit):
        """Test selection persisting when moving to the first char."""
        qtbot.keyClicks(cmd_edit, ':hello')
        assert cmd_edit.text() == ':hello'
        assert cmd_edit.cursorPosition() == len(':hello')
        for _ in ':hello':
            qtbot.keyClick(cmd_edit, Qt.Key_Left, modifier=Qt.ShiftModifier)
        assert cmd_edit.cursorPosition() == len(':')
        assert cmd_edit.selectionStart() == len(':') 

def keyPressEvent(self, event):
        ''' Handle keyboard input for bluesky. '''
        # Enter-key: enter command
        if event.key() == Qt.Key_Enter or event.key() == Qt.Key_Return:
            if self.command_line:
                # emit a signal with the command for the simulation thread
                self.stack(self.command_line)
                # Clear any shape command preview on the radar display
                # self.radarwidget.previewpoly(None)
                return

        newcmd = self.command_line
        cursorpos = None
        if event.key() >= Qt.Key_Space and event.key() <= Qt.Key_AsciiTilde:
            pos = self.lineEdit.cursor_pos()
            newcmd = newcmd[:pos] + event.text() + newcmd[pos:]
            # Update the cursor position with the length of the added text
            cursorpos = pos + len(event.text())
        elif event.key() == Qt.Key_Backspace:
            pos = self.lineEdit.cursor_pos()
            newcmd = newcmd[:pos - 1] + newcmd[pos:]
            cursorpos = pos - 1
        elif event.key() == Qt.Key_Tab:
            if newcmd:
                newcmd, displaytext = autocomplete.complete(newcmd)
                if displaytext:
                    self.echo(displaytext)
        elif not event.modifiers() & (Qt.ControlModifier | Qt.ShiftModifier | 
                                        Qt.AltModifier | Qt.MetaModifier):
            if event.key() == Qt.Key_Up:
                if self.history_pos == 0:
                    self.command_mem = newcmd
                if len(self.command_history) >= self.history_pos + 1:
                    self.history_pos += 1
                    newcmd = self.command_history[-self.history_pos]

            elif event.key() == Qt.Key_Down:
                if self.history_pos > 0:
                    self.history_pos -= 1
                    if self.history_pos == 0:
                        newcmd = self.command_mem
                    else:
                        newcmd = self.command_history[-self.history_pos]

            elif event.key() == Qt.Key_Left:
                self.lineEdit.cursor_left()

            elif event.key() == Qt.Key_Right:
                self.lineEdit.cursor_right()
            else:
                # Remaining keys are things like sole modifier keys, and function keys
                super(Console, self).keyPressEvent(event)
        else:
            event.ignore()
            return

        # Final processing of the command line
        self.set_cmdline(newcmd, cursorpos) 

def keyPressEvent(self, event):
		"""Keyboard press event

		Press a key on keyboard, the function will get an event, if the condition is met, call the function 
		run_action(). 
		In camera calibration mode, Effective key: W,A,S,D, ↑,  ↓,  ←,  →, ESC
		In front wheel calibration mode, Effective key: A, D, ←,  →, ESC
		In back wheel calibration mode, Effective key: A, D, ←,  →, ESC
		
		Args:
			event, this argument will get when an event of keyboard pressed occured

		"""
		key_press = event.key()

		if key_press in (Qt.Key_Up, Qt.Key_W):    	# UP
			if   self.calibration_status == 1:
				cali_action('camcaliup')
			elif self.calibration_status == 2:
				pass
			elif self.calibration_status == 3:
				pass
		elif key_press in (Qt.Key_Right, Qt.Key_D):	# RIGHT
			if   self.calibration_status == 1:
				cali_action('camcaliright')
			elif self.calibration_status == 2:
				cali_action('fwcaliright')
			elif self.calibration_status == 3:
				cali_action('bwcaliright')
		elif key_press in (Qt.Key_Down, Qt.Key_S):	# DOWN
			if   self.calibration_status == 1:
				cali_action('camcalidown')
			elif self.calibration_status == 2:
				pass
			elif self.calibration_status == 3:
				pass
		elif key_press in (Qt.Key_Left, Qt.Key_A):	# LEFT
			if   self.calibration_status == 1:
				cali_action('camcalileft')
			elif self.calibration_status == 2:
				cali_action('fwcalileft')
			elif self.calibration_status == 3:
				cali_action('bwcalileft')
				cali_action('forward')
		elif key_press == Qt.Key_Escape:			# ESC
			run_action('stop')
			self.close() 

def keyPressEvent(self, event):
        print(event.key())
        if event.key() == Qt.Key_M:
            self.send_flag = False
            self.com.write(b"m")
            self.send_flag = False
        elif event.key() == Qt.Key_Return or event.key()==Qt.Key_Enter:
            self.send_flag = False
            self.com.write(b"m")
            self.send_flag = False
        elif event.key() == Qt.Key_N or event.key() == 92:
            self.send_flag = False
            self.com.write(b"n")
            self.send_flag = False
        elif event.key() == Qt.Key_Minus:
            self.send_flag = False
            self.com.write(b"-")
            self.send_flag = False
        elif event.key() == Qt.Key_Equal:
            self.send_flag = False
            self.com.write(b"=")
            self.send_flag = False
        elif event.key() == Qt.Key_W or event.key() == Qt.Key_Up:
            self.send_flag = True
            self.key.append(b"w")
        elif event.key() == Qt.Key_A or event.key() == Qt.Key_Left:
            self.send_flag = True
            self.key.append(b"a")
        elif event.key() == Qt.Key_S or event.key() == Qt.Key_Down:
            self.send_flag = True
            self.key.append(b"s")
        elif event.key() == Qt.Key_D or event.key() == Qt.Key_Right:
            self.send_flag = True
            self.key.append(b"d")
        elif event.key() == Qt.Key_J:
            self.send_flag = True
            self.key.append(b"j")
        elif event.key() == Qt.Key_K:
            self.send_flag = True
            self.key.append(b"k")
        elif event.key() == Qt.Key_Escape:
            self.send_flag = False
            self.com.write(b"\x03")
        elif event.key() == Qt.Key_Control:
            self.keyControlPressed = True
        elif event.key() == Qt.Key_C:
            if self.keyControlPressed:
                self.send_flag = False
                self.com.write(b"\x03")
        # self.key_label.setText(self.key.decode())