src/empathy-rounded-texture.c

   1 /*
   2  * empathy-rounded-texture.c - Source for EmpathyRoundedTexture
   3  * Copyright (C) 2011 Collabora Ltd.
   4  * @author Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21
  22 #include <clutter/clutter.h>
  23
  24 #include "empathy-rounded-texture.h"
  25
  26 G_DEFINE_TYPE (EmpathyRoundedTexture,
  27     empathy_rounded_texture,
  28     CLUTTER_TYPE_TEXTURE)
  29
  30 static void
  31 empathy_rounded_texture_paint (ClutterActor *texture)
  32 {
  33   ClutterActorBox allocation = { 0, };
  34   gfloat width, height;
  35
  36   clutter_actor_get_allocation_box (texture, &allocation);
  37   clutter_actor_box_get_size (&allocation, &width, &height);
  38
  39   cogl_path_new ();
  40
  41   /* create and store a path describing a rounded rectangle */
  42   cogl_path_round_rectangle (0, 0, width, height, height / 16., 0.1);
  43
  44   cogl_clip_push_from_path ();
  45
  46   CLUTTER_ACTOR_CLASS (empathy_rounded_texture_parent_class)->paint (texture);
  47
  48   /* Flip */
  49   cogl_rectangle_with_texture_coords (0, 0, width, height,
  50       1., 0., 0., 1.);
  51
  52   cogl_clip_pop ();
  53 }
  54
  55 static void
  56 empathy_rounded_texture_init (EmpathyRoundedTexture *self)
  57 {
  58 }
  59
  60 static void
  61 empathy_rounded_texture_class_init (EmpathyRoundedTextureClass *klass)
  62 {
  63   ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
  64
  65   actor_class->paint = empathy_rounded_texture_paint;
  66 }
  67
  68 ClutterActor *
  69 empathy_rounded_texture_new (void)
  70 {
  71   return CLUTTER_ACTOR (
  72     g_object_new (EMPATHY_TYPE_ROUNDED_TEXTURE, NULL));
  73 }