Pileus Git - ~andy/gtk/blob - gdk-pixbuf/gdk-pixbuf-private.h

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
   2 /* GdkPixbuf library - Private declarations
   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_PRIVATE_H
  28 #define GDK_PIXBUF_PRIVATE_H
  29
  30 #include "gdk-pixbuf.h"
  31
  32 \f
  33
  34 typedef struct _GdkPixbufClass GdkPixbufClass;
  35
  36 #define GDK_PIXBUF_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF, GdkPixbufClass))
  37 #define GDK_IS_PIXBUF_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF))
  38 #define GDK_PIXBUF_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF, GdkPixbufClass))
  39
  40 /* Private part of the GdkPixbuf structure */
  41 struct _GdkPixbuf {
  42         GObject parent_instance;
  43
  44         /* Color space */
  45         GdkColorspace colorspace;
  46
  47         /* Number of channels, alpha included */
  48         int n_channels;
  49
  50         /* Bits per channel */
  51         int bits_per_sample;
  52
  53         /* Size */
  54         int width, height;
  55
  56         /* Offset between rows */
  57         int rowstride;
  58
  59         /* The pixel array */
  60         guchar *pixels;
  61
  62         /* Destroy notification function; it is supposed to free the pixel array */
  63         GdkPixbufDestroyNotify destroy_fn;
  64
  65         /* User data for the destroy notification function */
  66         gpointer destroy_fn_data;
  67
  68         /* Do we have an alpha channel? */
  69         guint has_alpha : 1;
  70 };
  71
  72 struct _GdkPixbufClass {
  73         GObjectClass parent_class;
  74
  75 };
  76
  77 typedef struct _GdkPixbufAnimationClass GdkPixbufAnimationClass;
  78
  79 #define GDK_PIXBUF_ANIMATION_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
  80 #define GDK_IS_PIXBUF_ANIMATION_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_ANIMATION))
  81 #define GDK_PIXBUF_ANIMATION_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
  82
  83 /* Private part of the GdkPixbufAnimation structure */
  84 struct _GdkPixbufAnimation {
  85         GObject parent_instance;
  86
  87 };
  88
  89 struct _GdkPixbufAnimationClass {
  90         GObjectClass parent_class;
  91
  92         gboolean                (*is_static_image)  (GdkPixbufAnimation *anim);
  93
  94         GdkPixbuf*              (*get_static_image) (GdkPixbufAnimation *anim);
  95
  96         void                    (*get_size) (GdkPixbufAnimation *anim,
  97                                              int                 *width,
  98                                              int                 *height);
  99
 100         GdkPixbufAnimationIter* (*get_iter) (GdkPixbufAnimation *anim,
 101                                              const GTimeVal     *start_time);
 102
 103 };
 104
 105 \f
 106
 107 typedef struct _GdkPixbufAnimationIterClass GdkPixbufAnimationIterClass;
 108
 109 #define GDK_PIXBUF_ANIMATION_ITER_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIterClass))
 110 #define GDK_IS_PIXBUF_ANIMATION_ITER_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_ANIMATION_ITER))
 111 #define GDK_PIXBUF_ANIMATION_ITER_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_ANIMATION_ITER, GdkPixbufAnimationIterClass))
 112
 113 struct _GdkPixbufAnimationIter {
 114         GObject parent_instance;
 115
 116 };
 117
 118 struct _GdkPixbufAnimationIterClass {
 119         GObjectClass parent_class;
 120
 121         int        (*get_delay_time)   (GdkPixbufAnimationIter *iter);
 122
 123         GdkPixbuf* (*get_pixbuf)       (GdkPixbufAnimationIter *iter);
 124
 125         gboolean (*on_currently_loading_frame) (GdkPixbufAnimationIter *iter);
 126
 127         gboolean (*advance)            (GdkPixbufAnimationIter *iter,
 128                                         const GTimeVal         *current_time);
 129 };
 130
 131 \f
 132
 133 GdkPixbufAnimation* gdk_pixbuf_non_anim_new (GdkPixbuf *pixbuf);
 134
 135 #endif