gtk2/demos/gtk-demo/modelbutton.c
Benjamin Otte b025ee428c builder: Connect signals automatically
gtk_builder_connect_signals() is no longer necessary, because all the
setup that made it necessary to have this extra step is now done
automatically via the closure functions.
2019-11-22 17:42:31 +01:00

70 lines
2.0 KiB
C

/* Model Button
*
* GtkModelButton is a button widget that is designed to be used with
* a GAction as model. The button will adjust its appearance according
* to the kind of action it is connected to.
*
* It is also possible to use GtkModelButton without a GAction. In this
* case, you should set the "role" attribute yourself, and connect to the
* "clicked" signal as you would for any other button.
*
* A common use of GtkModelButton is to implement menu-like content
* in popovers.
*/
#include <gtk/gtk.h>
static void
tool_clicked (GtkButton *button)
{
gboolean active;
g_object_get (button, "active", &active, NULL);
g_object_set (button, "active", !active, NULL);
}
GtkWidget *
do_modelbutton (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
static GActionEntry win_entries[] = {
{ "color", NULL, "s", "'red'", NULL },
{ "chocolate", NULL, NULL, "true", NULL },
{ "vanilla", NULL, NULL, "false", NULL },
{ "sprinkles", NULL, NULL, NULL, NULL }
};
if (!window)
{
GtkBuilder *builder;
GActionGroup *actions;
builder = gtk_builder_new ();
gtk_builder_add_callback_symbol (builder, "tool_clicked", G_CALLBACK (tool_clicked));
gtk_builder_add_from_resource (builder, "/modelbutton/modelbutton.ui", NULL);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
actions = (GActionGroup*)g_simple_action_group_new ();
g_action_map_add_action_entries (G_ACTION_MAP (actions),
win_entries, G_N_ELEMENTS (win_entries),
window);
gtk_widget_insert_action_group (window, "win", actions);
g_object_unref (builder);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}