/* * Copyright (C) 2012 Red Hat Inc. * * Author: * Matthias Clasen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library. If not, see . */ #include #include /* Implement a (trivial) GtkButton subclass, derive GtkButtonAccessible * and use the derived accessible for our new button. */ typedef GtkButtonAccessible MyButtonAccessible; typedef GtkButtonAccessibleClass MyButtonAccessibleClass; G_DEFINE_TYPE (MyButtonAccessible, my_button_accessible, GTK_TYPE_BUTTON_ACCESSIBLE) static void my_button_accessible_init (MyButtonAccessible *a) { } static void my_button_accessible_class_init (MyButtonAccessibleClass *class) { } typedef GtkButton MyButton; typedef GtkButtonClass MyButtonClass; G_DEFINE_TYPE (MyButton, my_button, GTK_TYPE_BUTTON) static void my_button_init (MyButton *b) { } static void my_button_class_init (MyButtonClass *class) { gtk_widget_class_set_accessible_type (GTK_WIDGET_CLASS (class), my_button_accessible_get_type ()); } int main (int argc, char *argv[]) { GtkWidget *widget; GtkAccessible *accessible; gtk_init (NULL, NULL); widget = GTK_WIDGET (g_object_new (my_button_get_type (), NULL)); accessible = GTK_ACCESSIBLE (gtk_widget_get_accessible (widget)); g_assert (G_TYPE_CHECK_INSTANCE_TYPE (accessible, my_button_accessible_get_type ())); return 0; }