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

   1 /* GdkPixbuf library - Progressive loader object
   2  *
   3  * Copyright (C) 1999 The Free Software Foundation
   4  *
   5  * Authors: Mark Crichton <crichton@gimp.org>
   6  *          Miguel de Icaza <miguel@gnu.org>
   7  *          Federico Mena-Quintero <federico@gimp.org>
   8  *          Jonathan Blandford <jrb@redhat.com>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the
  22  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23  * Boston, MA 02111-1307, USA.
  24  */
  25
  26 #if !defined (GDK_PIXBUF_H_INSIDE) && !defined (GDK_PIXBUF_COMPILATION)
  27 #error "Only <gdk-pixbuf/gdk-pixbuf.h> can be included directly."
  28 #endif
  29
  30 #ifndef GDK_PIXBUF_LOADER_H
  31 #define GDK_PIXBUF_LOADER_H
  32
  33 #include <glib.h>
  34 #include <glib-object.h>
  35 #include <gdk-pixbuf/gdk-pixbuf-core.h>
  36 #include <gdk-pixbuf/gdk-pixbuf-animation.h>
  37 #include <gdk-pixbuf/gdk-pixbuf-io.h>
  38
  39 G_BEGIN_DECLS
  40
  41 #define GDK_TYPE_PIXBUF_LOADER             (gdk_pixbuf_loader_get_type ())
  42 #define GDK_PIXBUF_LOADER(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoader))
  43 #define GDK_PIXBUF_LOADER_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  44 #define GDK_IS_PIXBUF_LOADER(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PIXBUF_LOADER))
  45 #define GDK_IS_PIXBUF_LOADER_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_LOADER))
  46 #define GDK_PIXBUF_LOADER_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  47
  48
  49 typedef struct _GdkPixbufLoader GdkPixbufLoader;
  50 struct _GdkPixbufLoader
  51 {
  52   GObject parent_instance;
  53
  54   /*< private >*/
  55   gpointer priv;
  56 };
  57
  58 typedef struct _GdkPixbufLoaderClass GdkPixbufLoaderClass;
  59 struct _GdkPixbufLoaderClass
  60 {
  61   GObjectClass parent_class;
  62
  63   void (*size_prepared)      (GdkPixbufLoader *loader,
  64                               int              width,
  65                               int              height);
  66
  67   void (*area_prepared)      (GdkPixbufLoader *loader);
  68
  69   /* Last known frame needs a redraw for x, y, width, height */
  70   void (*area_updated)       (GdkPixbufLoader *loader,
  71                               int              x,
  72                               int              y,
  73                               int              width,
  74                               int              height);
  75
  76   void (*closed)             (GdkPixbufLoader *loader);
  77 };
  78
  79 GType                gdk_pixbuf_loader_get_type      (void) G_GNUC_CONST;
  80 GdkPixbufLoader *    gdk_pixbuf_loader_new           (void);
  81 GdkPixbufLoader *    gdk_pixbuf_loader_new_with_type (const char *image_type,
  82                                                       GError    **error);
  83 GdkPixbufLoader *    gdk_pixbuf_loader_new_with_mime_type (const char *mime_type,
  84                                                            GError    **error);
  85 void                 gdk_pixbuf_loader_set_size (GdkPixbufLoader  *loader,
  86                                                  int               width,
  87                                                  int               height);
  88 gboolean             gdk_pixbuf_loader_write         (GdkPixbufLoader *loader,
  89                                                       const guchar    *buf,
  90                                                       gsize            count,
  91                                                       GError         **error);
  92 GdkPixbuf *          gdk_pixbuf_loader_get_pixbuf    (GdkPixbufLoader *loader);
  93 GdkPixbufAnimation * gdk_pixbuf_loader_get_animation (GdkPixbufLoader *loader);
  94 gboolean             gdk_pixbuf_loader_close         (GdkPixbufLoader *loader,
  95                                                       GError         **error);
  96 GdkPixbufFormat     *gdk_pixbuf_loader_get_format    (GdkPixbufLoader *loader);
  97
  98 G_END_DECLS
  99
 100 #endif
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