src/empathy-rounded-actor.c

   1 /*
   2  * empathy-rounded-actor.c - Source for EmpathyRoundedActor
   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 #include "config.h"
  22 #include "empathy-rounded-actor.h"
  23
  24 G_DEFINE_TYPE(EmpathyRoundedActor, empathy_rounded_actor, GTK_CLUTTER_TYPE_ACTOR)
  25
  26 struct _EmpathyRoundedActorPriv
  27 {
  28   guint round_factor;
  29 };
  30
  31 static void
  32 empathy_rounded_actor_paint (ClutterActor *actor)
  33 {
  34   EmpathyRoundedActor *self = EMPATHY_ROUNDED_ACTOR (actor);
  35   ClutterActorBox allocation = { 0, };
  36   gfloat width, height;
  37
  38   clutter_actor_get_allocation_box (actor, &allocation);
  39   clutter_actor_box_get_size (&allocation, &width, &height);
  40
  41   cogl_path_new ();
  42
  43   /* create and store a path describing a rounded rectangle */
  44   cogl_path_round_rectangle (0, 0, width, height,
  45       height / self->priv->round_factor, 0.1);
  46
  47   cogl_clip_push_from_path ();
  48
  49   CLUTTER_ACTOR_CLASS (empathy_rounded_actor_parent_class)->paint (actor);
  50
  51   cogl_clip_pop ();
  52 }
  53
  54 static void
  55 empathy_rounded_actor_init (EmpathyRoundedActor *self)
  56 {
  57   self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
  58       EMPATHY_TYPE_ROUNDED_ACTOR, EmpathyRoundedActorPriv);
  59
  60   self->priv->round_factor = 2;
  61 }
  62
  63 static void
  64 empathy_rounded_actor_class_init (EmpathyRoundedActorClass *klass)
  65 {
  66   ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
  67
  68   actor_class->paint = empathy_rounded_actor_paint;
  69
  70   g_type_class_add_private (klass, sizeof (EmpathyRoundedActorPriv));
  71 }
  72
  73 ClutterActor *
  74 empathy_rounded_actor_new (guint round_factor)
  75 {
  76   EmpathyRoundedActor *self = EMPATHY_ROUNDED_ACTOR (
  77     g_object_new (EMPATHY_TYPE_ROUNDED_ACTOR, NULL));
  78
  79   self->priv->round_factor = round_factor;
  80
  81   return CLUTTER_ACTOR (self);
  82 }