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C/C++ Source or Header  |  2006-04-25  |  6.3 KB  |  148 lines
  1. /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
  2. /* GdkPixbuf library - Animation support
  3.  *
  4.  * Copyright (C) 1999 The Free Software Foundation
  5.  *
  6.  * Authors: Mark Crichton <crichton@gimp.org>
  7.  *          Miguel de Icaza <miguel@gnu.org>
  8.  *          Federico Mena-Quintero <federico@gimp.org>
  9.  *          Havoc Pennington <hp@redhat.com>
  10.  *
  11.  * This library is free software; you can redistribute it and/or
  12.  * modify it under the terms of the GNU Lesser General Public
  13.  * License as published by the Free Software Foundation; either
  14.  * version 2 of the License, or (at your option) any later version.
  15.  *
  16.  * This library is distributed in the hope that it will be useful,
  17.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19.  * Lesser General Public License for more details.
  20.  *
  21.  * You should have received a copy of the GNU Lesser General Public
  22.  * License along with this library; if not, write to the
  23.  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  24.  * Boston, MA 02111-1307, USA.
  25.  */
  26.  
  27. #ifndef GDK_PIXBUF_ANIMATION_H
  28. #define GDK_PIXBUF_ANIMATION_H
  29.  
  30. #include <glib.h>
  31. #include <glib-object.h>
  32. #include <gdk-pixbuf/gdk-pixbuf-core.h>
  33.  
  34. G_BEGIN_DECLS
  35.  
  36. /* Animation support */
  37.  
  38. typedef struct _GdkPixbufAnimation GdkPixbufAnimation;
  39. typedef struct _GdkPixbufAnimationIter GdkPixbufAnimationIter;
  40.  
  41. #define GDK_TYPE_PIXBUF_ANIMATION              (gdk_pixbuf_animation_get_type ())
  42. #define GDK_PIXBUF_ANIMATION(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimation))
  43. #define GDK_IS_PIXBUF_ANIMATION(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION))
  44.  
  45. #define GDK_TYPE_PIXBUF_ANIMATION_ITER              (gdk_pixbuf_animation_iter_get_type ())
  46. #define GDK_PIXBUF_ANIMATION_ITER(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIter))
  47. #define GDK_IS_PIXBUF_ANIMATION_ITER(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION_ITER))
  48.  
  49. GType               gdk_pixbuf_animation_get_type        (void) G_GNUC_CONST;
  50.  
  51. #ifdef G_OS_WIN32
  52. #define gdk_pixbuf_animation_new_from_file gdk_pixbuf_animation_new_from_file_utf8
  53. #endif
  54.  
  55. GdkPixbufAnimation *gdk_pixbuf_animation_new_from_file   (const char         *filename,
  56.                                                           GError            **error);
  57.  
  58. #ifndef GDK_PIXBUF_DISABLE_DEPRECATED
  59. GdkPixbufAnimation *gdk_pixbuf_animation_ref             (GdkPixbufAnimation *animation);
  60. void                gdk_pixbuf_animation_unref           (GdkPixbufAnimation *animation);
  61. #endif
  62.  
  63. int                 gdk_pixbuf_animation_get_width       (GdkPixbufAnimation *animation);
  64. int                 gdk_pixbuf_animation_get_height      (GdkPixbufAnimation *animation);
  65. gboolean            gdk_pixbuf_animation_is_static_image  (GdkPixbufAnimation *animation);
  66. GdkPixbuf          *gdk_pixbuf_animation_get_static_image (GdkPixbufAnimation *animation);
  67.  
  68. GdkPixbufAnimationIter *gdk_pixbuf_animation_get_iter                        (GdkPixbufAnimation     *animation,
  69.                                                                               const GTimeVal         *start_time);
  70. GType                   gdk_pixbuf_animation_iter_get_type                   (void) G_GNUC_CONST;
  71. int                     gdk_pixbuf_animation_iter_get_delay_time             (GdkPixbufAnimationIter *iter);
  72. GdkPixbuf              *gdk_pixbuf_animation_iter_get_pixbuf                 (GdkPixbufAnimationIter *iter);
  73. gboolean                gdk_pixbuf_animation_iter_on_currently_loading_frame (GdkPixbufAnimationIter *iter);
  74. gboolean                gdk_pixbuf_animation_iter_advance                    (GdkPixbufAnimationIter *iter,
  75.                                                                               const GTimeVal         *current_time);
  76.  
  77.  
  78. #ifdef GDK_PIXBUF_ENABLE_BACKEND
  79.  
  80.  
  81.  
  82. typedef struct _GdkPixbufAnimationClass GdkPixbufAnimationClass;
  83.  
  84. #define GDK_PIXBUF_ANIMATION_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
  85. #define GDK_IS_PIXBUF_ANIMATION_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_ANIMATION))
  86. #define GDK_PIXBUF_ANIMATION_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
  87.  
  88. /* Private part of the GdkPixbufAnimation structure */
  89. struct _GdkPixbufAnimation {
  90.         GObject parent_instance;
  91.  
  92. };
  93.  
  94. struct _GdkPixbufAnimationClass {
  95.         GObjectClass parent_class;
  96.  
  97.         /*< public >*/
  98.  
  99.         gboolean                (*is_static_image)  (GdkPixbufAnimation *anim);
  100.  
  101.         GdkPixbuf*              (*get_static_image) (GdkPixbufAnimation *anim);
  102.         
  103.         void                    (*get_size) (GdkPixbufAnimation *anim,
  104.                                              int                 *width,
  105.                                              int                 *height);
  106.         
  107.         GdkPixbufAnimationIter* (*get_iter) (GdkPixbufAnimation *anim,
  108.                                              const GTimeVal     *start_time);
  109.  
  110. };
  111.  
  112.  
  113.  
  114. typedef struct _GdkPixbufAnimationIterClass GdkPixbufAnimationIterClass;
  115.  
  116. #define GDK_PIXBUF_ANIMATION_ITER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIterClass))
  117. #define GDK_IS_PIXBUF_ANIMATION_ITER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_ANIMATION_ITER))
  118. #define GDK_PIXBUF_ANIMATION_ITER_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIterClass))
  119.  
  120. struct _GdkPixbufAnimationIter {
  121.         GObject parent_instance;
  122.  
  123. };
  124.  
  125. struct _GdkPixbufAnimationIterClass {
  126.         GObjectClass parent_class;
  127.  
  128.         /*< public >*/
  129.  
  130.         int        (*get_delay_time)   (GdkPixbufAnimationIter *iter);
  131.  
  132.         GdkPixbuf* (*get_pixbuf)       (GdkPixbufAnimationIter *iter);
  133.  
  134.         gboolean   (*on_currently_loading_frame) (GdkPixbufAnimationIter *iter);
  135.  
  136.         gboolean   (*advance)          (GdkPixbufAnimationIter *iter,
  137.                                         const GTimeVal         *current_time);
  138. };
  139.       
  140.  
  141. GdkPixbufAnimation* gdk_pixbuf_non_anim_new (GdkPixbuf *pixbuf);
  142.  
  143. #endif /* GDK_PIXBUF_ENABLE_BACKEND */
  144.  
  145. G_END_DECLS
  146.  
  147. #endif /* GDK_PIXBUF_ANIMATION_H */
  148.