Add support for GTK 3

[grits] / src / gtkgl.c

diff --git a/src/gtkgl.c b/src/gtkgl.c
index 6c4913b1fd17d28412c8b32611410b20383eb32f..19f3219043273e18f82be3b976acf83d911b80ae 100644 (file)
--- a/src/gtkgl.c
+++ b/src/gtkgl.c
@@ -108,11 +108,16 @@ void gtk_gl_enable(GtkWidget *widget)
 
        g_object_set_data(G_OBJECT(widget), "glcontext", context);
 
-       /* Fix up colormap */
+       /* Fix up visual/colormap */
+#if GTK_CHECK_VERSION(3,0,0)
+       GdkVisual *visual = gdk_x11_screen_lookup_visual(screen, xvinfo->visualid);
+       gtk_widget_set_visual(widget, visual);
+#else
        GdkVisual   *visual = gdk_x11_screen_lookup_visual(screen, xvinfo->visualid);
        GdkColormap *cmap   = gdk_colormap_new(visual, FALSE);
        gtk_widget_set_colormap(widget, cmap);
        g_object_unref(cmap);
+#endif
        XFree(xvinfo);
 
        /* Disable GTK double buffering */