Mastering GUI Programming with Python

Saving our image

After creating a snazzy meme image, our user probably wants to save it so that they can upload it to their favorite social media website. To enable that, let's head back to MainWindow.__init_() and create a toolbar:

        toolbar = self.addToolBar('File')        toolbar.addAction("Save Image", self.save_image)

You could, of course, do this using the menu options or another widget. In any case, we need to define the save_image() method called by this action:

    def save_image(self):        save_file, _ = qtw.QFileDialog.getSaveFileName(            None, "Save your image",            qtc.QDir.homePath(), "PNG Images (*.png)")        if save_file:            self.image.save(save_file, "PNG")

To save a QImage file to disk, we need to call its save() method with a file path string and a ...