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 #include <glib.h>
  30 #include <glib-object.h>
  31 #include <gdk-pixbuf/gdk-pixbuf-core.h>
  32 #include <gdk-pixbuf/gdk-pixbuf-animation.h>
  33 #include <gdk-pixbuf/gdk-pixbuf-io.h>
  34
  35 G_BEGIN_DECLS
  36
  37 #define GDK_TYPE_PIXBUF_LOADER             (gdk_pixbuf_loader_get_type ())
  38 #define GDK_PIXBUF_LOADER(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoader))
  39 #define GDK_PIXBUF_LOADER_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  40 #define GDK_IS_PIXBUF_LOADER(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_PIXBUF_LOADER))
  41 #define GDK_IS_PIXBUF_LOADER_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_LOADER))
  42 #define GDK_PIXBUF_LOADER_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
  43
  44
  45 typedef struct _GdkPixbufLoader GdkPixbufLoader;
  46 struct _GdkPixbufLoader
  47 {
  48   GObject parent_instance;
  49
  50   /*< private >*/
  51   gpointer priv;
  52 };
  53
  54 typedef struct _GdkPixbufLoaderClass GdkPixbufLoaderClass;
  55 struct _GdkPixbufLoaderClass
  56 {
  57   GObjectClass parent_class;
  58
  59   void (*size_prepared)      (GdkPixbufLoader *loader,
  60                               int              width,
  61                               int              height);
  62
  63   void (*area_prepared)      (GdkPixbufLoader *loader);
  64
  65   /* Last known frame needs a redraw for x, y, width, height */
  66   void (*area_updated)       (GdkPixbufLoader *loader,
  67                               int              x,
  68                               int              y,
  69                               int              width,
  70                               int              height);
  71
  72   void (*closed)             (GdkPixbufLoader *loader);
  73 };
  74
  75 GType                gdk_pixbuf_loader_get_type      (void) G_GNUC_CONST;
  76 GdkPixbufLoader *    gdk_pixbuf_loader_new           (void);
  77 GdkPixbufLoader *    gdk_pixbuf_loader_new_with_type (const char *image_type,
  78                                                       GError    **error);
  79 GdkPixbufLoader *    gdk_pixbuf_loader_new_with_mime_type (const char *mime_type,
  80                                                            GError    **error);
  81 void                 gdk_pixbuf_loader_set_size (GdkPixbufLoader  *loader,
  82                                                  int               width,
  83                                                  int               height);
  84 gboolean             gdk_pixbuf_loader_write         (GdkPixbufLoader *loader,
  85                                                       const guchar    *buf,
  86                                                       gsize            count,
  87                                                       GError         **error);
  88 GdkPixbuf *          gdk_pixbuf_loader_get_pixbuf    (GdkPixbufLoader *loader);
  89 GdkPixbufAnimation * gdk_pixbuf_loader_get_animation (GdkPixbufLoader *loader);
  90 gboolean             gdk_pixbuf_loader_close         (GdkPixbufLoader *loader,
  91                                                       GError         **error);
  92 GdkPixbufFormat     *gdk_pixbuf_loader_get_format    (GdkPixbufLoader *loader);
  93
  94 G_END_DECLS
  95
  96 #endif
  97
  98