gtk2/demos/gtk-demo/theming_style_classes.c
2012-05-25 20:50:35 -04:00

62 lines
1.6 KiB
C

/* Theming/Style Classes :: theming.ui
*
* GTK+ uses CSS for theming. Style classes can be associated
* with widgets to inform the theme about intended rendering.
*
* This demo shows some common examples where theming features
* of GTK+ are used for certain effects: primary toolbars,
* inline toolbars and linked buttons.
*/
#include <gtk/gtk.h>
#include "demo-common.h"
static GtkWidget *window = NULL;
GtkWidget *
do_theming_style_classes (GtkWidget *do_widget)
{
GtkWidget *grid;
GtkBuilder *builder;
gchar *filename;
GError *err = NULL;
if (!window)
{
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Style Classes");
gtk_container_set_border_width (GTK_CONTAINER (window), 12);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
builder = gtk_builder_new ();
filename = demo_find_file ("theming.ui", NULL);
gtk_builder_add_from_file (builder, filename, &err);
g_free (filename);
if (err)
{
g_error ("ERROR: %s\n", err->message);
return NULL;
}
grid = (GtkWidget *)gtk_builder_get_object (builder, "grid");
gtk_widget_show_all (grid);
gtk_container_add (GTK_CONTAINER (window), grid);
g_object_unref (builder);
}
if (!gtk_widget_get_visible (window))
{
gtk_widget_show (window);
}
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}