xdot.py 文件源码

def on_open(self, action):
        chooser = Gtk.FileChooserDialog(title="Open dot File",
                                        action=Gtk.FileChooserAction.OPEN,
                                        buttons=(Gtk.STOCK_CANCEL,
                                                 Gtk.ResponseType.CANCEL,
                                                 Gtk.STOCK_OPEN,
                                                 Gtk.ResponseType.OK))
        chooser.set_default_response(Gtk.ResponseType.OK)
        chooser.set_current_folder(self.last_open_dir)
        filter = Gtk.FileFilter()
        filter.set_name("Graphviz dot files")
        filter.add_pattern("*.dot")
        chooser.add_filter(filter)
        filter = Gtk.FileFilter()
        filter.set_name("All files")
        filter.add_pattern("*")
        chooser.add_filter(filter)
        if chooser.run() == Gtk.ResponseType.OK:
            filename = chooser.get_filename()
            self.last_open_dir = chooser.get_current_folder()
            chooser.destroy()
            self.open_file(filename)
        else:
            chooser.destroy()