CODEWITHSUNDEEP
pythonpyqtkeyboard-shortcutspyqt5qscintilla
Stephan
Stephan

Reputation: 262

How to assign QScintilla shortcuts

I'm trying to implement shortcuts to my editor, but I haven't had any success so far.

I'd like to override some of the default QScintilla shortcuts. I have read this answer, but I'm not sure if this helps to solve my problem.

I have also read the Scintilla (SCI_ASSIGNCMDKEY) documentation, but I don't know how I'm supposed to use it in a pythonic way.

To make it clear:

  1. I'd like to override the QScintilla shortcut Ctrl+L and use my custom solution (assign it to one of my functions).

  2. I'd like to assign the command SCI_LINEDELETE to the shortcut Ctrl+D.

This is my idea:

    from PyQt5.Qsci import QsciScintilla
    from PyQt5.QtCore import *
    from PyQt5.QtGui import *
    from PyQt5.QtWidgets import *
    import sys

    class mainWindow(QMainWindow):
        def __init__(self, parent = None):
            super(mainWindow, self).__init__(parent)
            self.initUI()

        def initUI(self):
            self.center_window = centerWindow(parent=self)
            self.setCentralWidget(self.center_window) 

    class centerWindow(QWidget):
        def __init__(self, parent=None):
            super(centerWindow, self).__init__(parent)

            self.hhEditor_te = QsciScintilla()

            vbox = QVBoxLayout(self)
            vbox.addWidget(self.hhEditor_te)
            self.setLayout(vbox)

            # 1)
            # assign a key binding to this function
            # self.my_shortcut

            # 2)
            # assign a key binding to the QScintilla command
            # SCI_LINEDELETE

        def my_shortcut(self):
            pass
            # my custom shortcut function

    if __name__ == '__main__':
        app = QApplication.instance()
        if app is None:
            app = QApplication(sys.argv)
        else:
            print('QApplication instance already exists: %s' % str(app))

        ex = mainWindow()
        ex.setGeometry(0,100,1500,600)
        ex.show()
        sys.exit(app.exec_())

Upvotes: 3

Views: 588

Answers (2)

Storm Shadow
Storm Shadow

Reputation: 462

if you are using a toolbar in your QScintilla, action shortcuts is as followeded

self.toolBar.newAction = QtWidgets.QAction(QtGui.QIcon(":/ico/new.png"),"New",self.toolBar)
self.toolBar.newAction.setStatusTip("Clear TextBox or make new document.")
self.toolBar.newAction.setShortcut("Ctrl+N")
self.toolBar.newAction.triggered.connect(self.newfile)

    #actions
self.toolBar.addAction(self.toolBar.newAction)
self.toolBar.addSeparator()

Upvotes: 0

ekhumoro
ekhumoro

Reputation: 120608

QScintilla already provides the QsciCommandSet and QsciCommand classes for handling shortcuts for the internal editor commands. You can also use QShortcut to create shortcuts for your own methods.

class centerWindow(QWidget):
    def __init__(self, parent=None):
        ...
        commands = self.hhEditor_te.standardCommands()

        command = commands.boundTo(Qt.ControlModifier | Qt.Key_L)
        if command is not None:
            command.setKey(0) # clear the default
        command = commands.boundTo(Qt.ControlModifier | Qt.Key_D)
        if command is not None:
            command.setKey(0) # clear the default

        command = commands.find(QsciCommand.LineDelete)
        if command is not None:
            command.setKey(Qt.ControlModifier | Qt.Key_D)

        shortcut = QShortcut(Qt.ControlModifier | Qt.Key_L, self.hhEditor_te)
        shortcut.activated.connect(self.my_shortcut)
        ...

    def my_shortcut(self):
        print('Ctrl+L')

Upvotes: 2

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