swfdec/swfdec_cached.c

   1 /* Swfdec
   2  * Copyright (C) 2008 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "swfdec_cached.h"
  25 #include "swfdec_debug.h"
  26
  27
  28 G_DEFINE_ABSTRACT_TYPE (SwfdecCached, swfdec_cached, G_TYPE_OBJECT)
  29
  30 enum {
  31   PROP_0,
  32   PROP_SIZE
  33 };
  34
  35 enum {
  36   USE,
  37   UNUSE,
  38   LAST_SIGNAL
  39 };
  40
  41 static guint signals[LAST_SIGNAL] = { 0, };
  42
  43 static void
  44 swfdec_cached_get_property (GObject *object, guint param_id, GValue *value,
  45     GParamSpec *pspec)
  46 {
  47   SwfdecCached *cached = SWFDEC_CACHED (object);
  48
  49   switch (param_id) {
  50     case PROP_SIZE:
  51       g_value_set_ulong (value, cached->size);
  52       break;
  53     default:
  54       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
  55       break;
  56   }
  57 }
  58
  59 static void
  60 swfdec_cached_set_property (GObject *object, guint param_id, const GValue *value,
  61     GParamSpec *pspec)
  62 {
  63   SwfdecCached *cached = SWFDEC_CACHED (object);
  64
  65   switch (param_id) {
  66     case PROP_SIZE:
  67       cached->size = g_value_get_ulong (value);
  68       break;
  69     default:
  70       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
  71       break;
  72   }
  73 }
  74
  75 static void
  76 swfdec_cached_class_init (SwfdecCachedClass * g_class)
  77 {
  78   GObjectClass *object_class = G_OBJECT_CLASS (g_class);
  79
  80   object_class->get_property = swfdec_cached_get_property;
  81   object_class->set_property = swfdec_cached_set_property;
  82
  83   /* FIXME: should be g_param_spec_size(), but no such thing exists */
  84   g_object_class_install_property (object_class, PROP_SIZE,
  85       g_param_spec_ulong ("size", "size", "size of this object in bytes",
  86           0, G_MAXULONG, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
  87
  88   signals[USE] = g_signal_new ("use", G_TYPE_FROM_CLASS (g_class),
  89       G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID,
  90       G_TYPE_NONE, 0);
  91   signals[UNUSE] = g_signal_new ("unuse", G_TYPE_FROM_CLASS (g_class),
  92       G_SIGNAL_RUN_LAST, 0, NULL, NULL, g_cclosure_marshal_VOID__VOID,
  93       G_TYPE_NONE, 0);
  94 }
  95
  96 static void
  97 swfdec_cached_init (SwfdecCached * cached)
  98 {
  99   cached->size = sizeof (SwfdecCached);
 100 }
 101
 102 void
 103 swfdec_cached_use (SwfdecCached *cached)
 104 {
 105   g_return_if_fail (SWFDEC_IS_CACHED (cached));
 106
 107   g_signal_emit (cached, signals[USE], 0);
 108 }
 109
 110 void
 111 swfdec_cached_unuse (SwfdecCached *cached)
 112 {
 113   g_return_if_fail (SWFDEC_IS_CACHED (cached));
 114
 115   g_signal_emit (cached, signals[UNUSE], 0);
 116 }
 117
 118 gsize
 119 swfdec_cached_get_size (SwfdecCached *cached)
 120 {
 121   g_return_val_if_fail (SWFDEC_IS_CACHED (cached), 0);
 122
 123   return cached->size;
 124 }
 125