settings.py 文件源码

def select_image(self, button):
        """
        Show a file chooser dialog and let the user to select an image.
        """
        dialog = Gtk.FileChooserDialog(_('Please select an image'), self.window, Gtk.FileChooserAction.OPEN, (Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL,
                                       Gtk.STOCK_OPEN, Gtk.ResponseType.OK))

        png_filter = Gtk.FileFilter()
        png_filter.set_name("PNG files")
        png_filter.add_mime_type("image/png")
        png_filter.add_pattern("*.png")
        dialog.add_filter(png_filter)

        response = dialog.run()
        if response == Gtk.ResponseType.OK:
            self.break_config['image'] = dialog.get_filename()
            pixbuf = GdkPixbuf.Pixbuf.new_from_file_at_scale(self.break_config['image'], 16, 16, True)
            self.img_break.set_from_pixbuf(pixbuf)
        elif response == Gtk.ResponseType.CANCEL:
            self.break_config.pop('image', None)
            self.img_break.set_from_stock('gtk-missing-image', Gtk.IconSize.BUTTON)

        dialog.destroy()