forked from AuroraMiddleware/gtk
6e3522ab2c
2000-01-01 Federico Mena Quintero <federico@helixcode.com> * gdk-pixbuf/gdk-pixbuf.h (GdkPixbufAnimation): Added reference counting to animations. A web browser may want to share a single copy of an animated GIF if it appears multiple times in a web page, for example. * gdk-pixbuf/gdk-pixbuf-animation.c: New file. Moved the animation functions here. (gdk_pixbuf_animation_new_from_file): Prettified. Return a NULL animation if the loader does not support multiframe loading and the single-frame load returned NULL. Check that the filename is not NULL. Updated inline documentation. (gdk_pixbuf_animation_ref): New function. (gdk_pixbuf_animation_unref): New function. Removed gdk_pixbuf_animation_destroy() in favor of reference counting. * gdk-pixbuf/gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Prettified. Made ref_count assertion more paranoid. Check that the filename is not NULL. (gdk_pixbuf_get_module): Use guchar * and guint for buffer and size, respectively. (gdk_pixbuf_new_from_xpm_data): Changed the "data" argument to const char **. * gdk-pixbuf/io-gif.c (image_load_animation): Create the animation with a reference count of 1. * gdk-pixbuf/Makefile.am (libgdk_pixbuf_la_SOURCES): Added gdk-pixbuf-animation.c. * doc/tmpl/animation.sgml: Populated. It is still missing a description of the overlay modes. * doc/gdk-pixbuf-sections.txt: Added the animation section. Moved the canvas item section to the end, as it will be moved later to gnome-libs. * doc/gdk-pixbuf.sgml: Added the animation section. * doc/Makefile.am (tmpl_sources): Added tmpl/animation.sgml.
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/* GdkPixbuf library - Main header file
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*
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* Copyright (C) 1999 The Free Software Foundation
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*
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* Authors: Mark Crichton <crichton@gimp.org>
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* Miguel de Icaza <miguel@gnu.org>
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* Federico Mena-Quintero <federico@gimp.org>
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* Jonathan Blandford <jrb@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef GDK_PIXBUF_LOADER_H
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#define GDK_PIXBUF_LOADER_H
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#include <unistd.h>
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#include <gtk/gtkobject.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define GDK_TYPE_PIXBUF_LOADER (gdk_pixbuf_loader_get_type ())
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#define GDK_PIXBUF_LOADER(obj) (GTK_CHECK_CAST ((obj), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoader))
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#define GDK_PIXBUF_LOADER_CLASS(klass) (GTK_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_LOADER, GdkPixbufLoaderClass))
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#define GDK_IS_PIXBUF_LOADER(obj) (GTK_CHECK_TYPE ((obj), GDK_TYPE_PIXBUF_LOADER))
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#define GDK_IS_PIXBUF_LOADER_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_LOADER))
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typedef struct _GdkPixbufLoader GdkPixbufLoader;
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struct _GdkPixbufLoader
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{
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GtkObject object;
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/* < Private > */
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gpointer private;
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};
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typedef struct _GdkPixbufLoaderClass GdkPixbufLoaderClass;
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struct _GdkPixbufLoaderClass {
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GtkObjectClass parent_class;
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void (* area_prepared) (GdkPixbufLoader *loader);
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void (* area_updated) (GdkPixbufLoader *loader,
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guint x, guint y, guint width, guint height);
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void (* frame_done) (GdkPixbufLoader *loader, gint frame);
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void (* animation_done) (GdkPixbufLoader *loader);
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void (* closed) (GdkPixbufLoader *loader);
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};
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GtkType gdk_pixbuf_loader_get_type (void);
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GdkPixbufLoader *gdk_pixbuf_loader_new (void);
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gboolean gdk_pixbuf_loader_write (GdkPixbufLoader *loader,
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const guchar *buf,
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size_t count);
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GdkPixbuf *gdk_pixbuf_loader_get_pixbuf (GdkPixbufLoader *loader);
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GdkPixbufAnimation *gdk_pixbuf_loader_get_animation (GdkPixbufLoader *loader);
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void gdk_pixbuf_loader_close (GdkPixbufLoader *loader);
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#ifdef __cplusplus
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}
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#endif
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#endif
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