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 #ifndef GDK_PIXBUF_LOADER_H
  27 #define GDK_PIXBUF_LOADER_H
  28
  29 G_BEGIN_DECLS
  30
  31 #define GDK_TYPE_PIXBUF_LOADER             (gdk_pixbuf_loader_get_type ())
  32 #define GDK_PIXBUF_LOADER(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoader))
  33 #define GDK_PIXBUF_LOADER_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  34 #define GDK_IS_PIXBUF_LOADER(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PIXBUF_LOADER))
  35 #define GDK_IS_PIXBUF_LOADER_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_LOADER))
  36 #define GDK_PIXBUF_LOADER_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  37
  38
  39 typedef struct _GdkPixbufLoader GdkPixbufLoader;
  40 struct _GdkPixbufLoader
  41 {
  42   GObject parent_instance;
  43
  44   /*< private >*/
  45   gpointer priv;
  46 };
  47
  48 typedef struct _GdkPixbufLoaderClass GdkPixbufLoaderClass;
  49 struct _GdkPixbufLoaderClass
  50 {
  51   GObjectClass parent_class;
  52
  53   void (*area_prepared)      (GdkPixbufLoader *loader);
  54
  55   /* Last known frame needs a redraw for x, y, width, height */
  56   void (*area_updated)       (GdkPixbufLoader *loader,
  57                               int              x,
  58                               int              y,
  59                               int              width,
  60                               int              height);
  61
  62   void (*closed)             (GdkPixbufLoader *loader);
  63 };
  64
  65
  66 GType                gdk_pixbuf_loader_get_type      (void) G_GNUC_CONST;
  67 GdkPixbufLoader *    gdk_pixbuf_loader_new           (void);
  68 GdkPixbufLoader *    gdk_pixbuf_loader_new_with_type (const char *image_type,
  69                                                       GError    **error);
  70 gboolean             gdk_pixbuf_loader_write         (GdkPixbufLoader *loader,
  71                                                       const guchar    *buf,
  72                                                       gsize            count,
  73                                                       GError         **error);
  74 GdkPixbuf *          gdk_pixbuf_loader_get_pixbuf    (GdkPixbufLoader *loader);
  75 GdkPixbufAnimation * gdk_pixbuf_loader_get_animation (GdkPixbufLoader *loader);
  76 gboolean             gdk_pixbuf_loader_close         (GdkPixbufLoader *loader,
  77                                                       GError         **error);
  78
  79
  80 G_END_DECLS
  81
  82 #endif