gtk/demos/gtk-demo/cursors.c
Benjamin Otte 27d05102ab builder: Remove user_data argument from gtk_builder_connect_signals()
This is pretty unused and gets in the way of the next steps.

A potential side effect is that for templates the widget was passed as
the user data argument. If that turns out to be important, we have to
special case that situation.
2019-11-22 07:46:18 +01:00

45 lines
1.1 KiB
C

/* Cursors
*
* Demonstrates a useful set of available cursors. The cursors shown here are the ones
* defined by CSS, which we assume to be available.
*
* The example shows creating cursors by name or from an image, with or without a fallback.
*/
#include <gtk/gtk.h>
static GtkWidget *window = NULL;
static void
on_destroy (gpointer data)
{
window = NULL;
}
GtkWidget *
do_cursors (GtkWidget *do_widget)
{
if (!window)
{
GtkBuilder *builder;
builder = gtk_builder_new_from_resource ("/cursors/cursors.ui");
gtk_builder_connect_signals (builder);
window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
g_signal_connect (window, "destroy",
G_CALLBACK (on_destroy), NULL);
g_object_set_data_full (G_OBJECT (window), "builder", builder, g_object_unref);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
{
gtk_widget_destroy (window);
}
return window;
}