Add a GtkClutterActor subclass that clips the corners

https://bugzilla.gnome.org/show_bug.cgi?id=656150

1 files changed, 68 insertions, 0 deletions

diff --git a/src/empathy-rounded-actor.c b/src/empathy-rounded-actor.c
new file mode 100644
index 000000000..463a73c61
--- /dev/null
+++ b/src/empathy-rounded-actor.c
@@ -0,0 +1,68 @@
+/*
+ * empathy-rounded-actor.c - Source for EmpathyRoundedActor
+ * Copyright (C) 2011 Collabora Ltd.
+ * @author Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+
+#include <clutter/clutter.h>
+#include <clutter-gtk/clutter-gtk.h>
+
+#include "empathy-rounded-actor.h"
+
+G_DEFINE_TYPE(EmpathyRoundedActor, empathy_rounded_actor, GTK_CLUTTER_TYPE_ACTOR)
+
+static void
+empathy_rounded_actor_paint (ClutterActor *actor)
+{
+  ClutterActorBox allocation = { 0, };
+  gfloat width, height;
+
+  clutter_actor_get_allocation_box (actor, &allocation);
+  clutter_actor_box_get_size (&allocation, &width, &height);
+
+  cogl_path_new ();
+
+  /* create and store a path describing a rounded rectangle */
+  cogl_path_round_rectangle (0, 0, width, height, height / 2, 0.1);
+
+  cogl_clip_push_from_path ();
+
+  CLUTTER_ACTOR_CLASS (empathy_rounded_actor_parent_class)->paint (actor);
+
+  cogl_clip_pop ();
+}
+
+static void
+empathy_rounded_actor_init (EmpathyRoundedActor *self)
+{
+}
+
+static void
+empathy_rounded_actor_class_init (EmpathyRoundedActorClass *klass)
+{
+  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
+
+  actor_class->paint = empathy_rounded_actor_paint;
+}
+
+ClutterActor *
+empathy_rounded_actor_new (void)
+{
+  return CLUTTER_ACTOR (
+    g_object_new (EMPATHY_TYPE_ROUNDED_ACTOR, NULL));
+}