Keyboard Events
Unsolved
General and Desktop
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I want to be able to get a visual representation on a GUI keyboard I am creating when I press my physical keyboard. But the only feedback I get is when I press the space key on the keyboard and it triggers other keys on the GUI, How do I fix it? Please and thank you.
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I want to be able to get a visual representation on a GUI keyboard I am creating when I press my physical keyboard. But the only feedback I get is when I press the space key on the keyboard and it triggers other keys on the GUI, How do I fix it? Please and thank you.
@PythonShinobi said in Keyboard Events:
How do I fix it?
You are going to have to share at least some of what"it" currently is.
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This post is deleted!
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class KeyBoard(QWidget):
def init(self):
super().init()
self.setWindowTitle('Virtual Keyboard')
self.setGeometry(100, 100, 600, 200)
self.generalLayout = QVBoxLayout()self.capsLockActive = False # Initial state of the Caps Lock self._createDisplay() self._createButtons() self.setFocusPolicy(Qt.FocusPolicy.StrongFocus) self.setLayout(self.generalLayout) self.setFocus() def _createDisplay(self): self.textInput = QLineEdit() # Add label to display cursor position self.cursorPositionLabel = QLabel() self.cursorPositionLabel.setAlignment(Qt.AlignmentFlag.AlignCenter) self.generalLayout.addWidget(self.cursorPositionLabel) self.generalLayout.addWidget(self.textInput) def _createButtons(self): # Create rows of keys. self.buttons = {} # Used to keep track of all the buttons in the keyboard. keys = [ ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', 'Clear'], ['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '<-', '->'], ['a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', "Enter"], ['z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/'], ['Shift', 'Ctrl', 'Space', 'Alt', 'Backspace', 'Caps Lock'], ] for row in keys: rowLayout = QHBoxLayout() # Create a QHBoxLayout for each row of buttons for col in row: # For every item in a list. button = QPushButton(col) # Create a button. button.setStyleSheet("QPushButton:hover { background-color: #45a049; } QPushButton:pressed { background-color: #0d8050; }") if col == 'Space': button.setFixedWidth(100) rowLayout.addWidget(button) # Add each button to the row layout self.buttons[col] = button # Connect the clicked signal of the button to the corresponding slot. button.clicked.connect(lambda clicked, ch=col: self.onKeyClicked(ch)) self.generalLayout.addLayout(rowLayout) # Add the row layout to the general def updateCursorPositionLabel(self): """Display the position of the cursor in the text input.""" cursorPosition = self.textInput.cursorPosition() # Retrieve the cursor positon. self.cursorPositionLabel.setText(f'Cursor Position: {cursorPosition}') def onKeyClicked(self, char): """Handle the click event of a virtual keyboard button. Parameters: char (str): The character associated with the clicked button.""" if char == 'Backspace': self.textInput.backspace() elif char == 'Space': self.textInput.insert(' ') elif char in ['Shift', 'Ctrl', 'Alt']: pass elif char == 'Clear': self.textInput.clear() elif char == 'Caps Lock': self.capsLockActive = not self.capsLockActive # Toggle Caps Lock state. # Toggle the case of character labels on all buttons for button in self.buttons.values(): if self.capsLockActive: button.setText(button.text().upper()) else: button.setText(button.text().lower()) elif char == '<-': # Retrieve the current cursor position. cursorPosition = self.textInput.cursorPosition() self.textInput.setCursorPosition(cursorPosition - 1) elif char == '->': # Retrieve the current cursor position. cursorPosition = self.textInput.cursorPosition() self.textInput.setCursorPosition(cursorPosition + 1) else: if self.capsLockActive: char = char.upper() self.textInput.insert(char) self.updateCursorPositionLabel() def keyPressEvent(self, e): if e.key() == Qt.Key_Space: self.onKeyClicked('Space') elif e.key() == Qt.Key_Backspace: print(0) -
class KeyBoard(QWidget):
def init(self):
super().init()
self.setWindowTitle('Virtual Keyboard')
self.setGeometry(100, 100, 600, 200)
self.generalLayout = QVBoxLayout()self.capsLockActive = False # Initial state of the Caps Lock self._createDisplay() self._createButtons() self.setFocusPolicy(Qt.FocusPolicy.StrongFocus) self.setLayout(self.generalLayout) self.setFocus() def _createDisplay(self): self.textInput = QLineEdit() # Add label to display cursor position self.cursorPositionLabel = QLabel() self.cursorPositionLabel.setAlignment(Qt.AlignmentFlag.AlignCenter) self.generalLayout.addWidget(self.cursorPositionLabel) self.generalLayout.addWidget(self.textInput) def _createButtons(self): # Create rows of keys. self.buttons = {} # Used to keep track of all the buttons in the keyboard. keys = [ ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', 'Clear'], ['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '<-', '->'], ['a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', "Enter"], ['z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/'], ['Shift', 'Ctrl', 'Space', 'Alt', 'Backspace', 'Caps Lock'], ] for row in keys: rowLayout = QHBoxLayout() # Create a QHBoxLayout for each row of buttons for col in row: # For every item in a list. button = QPushButton(col) # Create a button. button.setStyleSheet("QPushButton:hover { background-color: #45a049; } QPushButton:pressed { background-color: #0d8050; }") if col == 'Space': button.setFixedWidth(100) rowLayout.addWidget(button) # Add each button to the row layout self.buttons[col] = button # Connect the clicked signal of the button to the corresponding slot. button.clicked.connect(lambda clicked, ch=col: self.onKeyClicked(ch)) self.generalLayout.addLayout(rowLayout) # Add the row layout to the general def updateCursorPositionLabel(self): """Display the position of the cursor in the text input.""" cursorPosition = self.textInput.cursorPosition() # Retrieve the cursor positon. self.cursorPositionLabel.setText(f'Cursor Position: {cursorPosition}') def onKeyClicked(self, char): """Handle the click event of a virtual keyboard button. Parameters: char (str): The character associated with the clicked button.""" if char == 'Backspace': self.textInput.backspace() elif char == 'Space': self.textInput.insert(' ') elif char in ['Shift', 'Ctrl', 'Alt']: pass elif char == 'Clear': self.textInput.clear() elif char == 'Caps Lock': self.capsLockActive = not self.capsLockActive # Toggle Caps Lock state. # Toggle the case of character labels on all buttons for button in self.buttons.values(): if self.capsLockActive: button.setText(button.text().upper()) else: button.setText(button.text().lower()) elif char == '<-': # Retrieve the current cursor position. cursorPosition = self.textInput.cursorPosition() self.textInput.setCursorPosition(cursorPosition - 1) elif char == '->': # Retrieve the current cursor position. cursorPosition = self.textInput.cursorPosition() self.textInput.setCursorPosition(cursorPosition + 1) else: if self.capsLockActive: char = char.upper() self.textInput.insert(char) self.updateCursorPositionLabel() def keyPressEvent(self, e): if e.key() == Qt.Key_Space: self.onKeyClicked('Space') elif e.key() == Qt.Key_Backspace: print(0)@PythonShinobi said in Keyboard Events:
def keyPressEvent(self, e):
if e.key() == Qt.Key_Space:
self.onKeyClicked('Space')
elif e.key() == Qt.Key_Backspace:
print(0)This does something when a space or backspace is pressed and nothing for any other key event received. By default this event handler accepts every QKeyEvent it receives, so no other processing will occur for key strokes.
