Mastering GUI Programming with Python

Other dialog boxes

Qt contains other dialog box classes for selecting colors, requesting input values, and more. All of these work more or less like the file and font dialog boxes, and they descend from the QDialog class. We can subclass QDialog ourselves to create a custom dialog box.

For example, suppose we want to have a dialog box for entering our settings. We could start building it like this:

class SettingsDialog(qtw.QDialog):    """Dialog for setting the settings"""    def __init__(self, settings, parent=None):        super().__init__(parent, modal=True)        self.setLayout(qtw.QFormLayout())        self.settings = settings        self.layout().addRow(            qtw.QLabel('<h1>Application Settings</h1>'),        )        self.show_warnings_cb = qtw.QCheckBox( checked=settings.get('show_warnings') ...