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Wed May 5 23:09:48 2004 Matthias Clasen <maclas@gmx.de> * gdk-pixbuf-io.h (GdkPixbufFormatFlags): New format flag GDK_PIXBUF_FORMAT_SCALABLE to mark scalable formats. * gdk-pixbuf.h: * gdk-pixbuf-io.c (gdk_pixbuf_format_is_scalable): New function. (#137995, Dom Lachowicz)
146 lines
4.5 KiB
C
146 lines
4.5 KiB
C
/* GdkPixbuf library - Io handling. This is an internal header for
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* GdkPixbuf. You should never use it unless you are doing development for
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* GdkPixbuf itself.
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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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* Michael Fulbright <drmike@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 Lesser 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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_IO_H
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#define GDK_PIXBUF_IO_H
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#include "gdk-pixbuf/gdk-pixbuf.h"
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#include <gmodule.h>
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#include <stdio.h>
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G_BEGIN_DECLS
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#ifdef GDK_PIXBUF_ENABLE_BACKEND
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typedef void (* GdkPixbufModuleSizeFunc) (gint *width,
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gint *height,
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gpointer user_data);
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typedef void (* GdkPixbufModulePreparedFunc) (GdkPixbuf *pixbuf,
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GdkPixbufAnimation *anim,
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gpointer user_data);
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typedef void (* GdkPixbufModuleUpdatedFunc) (GdkPixbuf *pixbuf,
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int x,
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int y,
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int width,
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int height,
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gpointer user_data);
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typedef struct _GdkPixbufModulePattern GdkPixbufModulePattern;
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struct _GdkPixbufModulePattern {
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unsigned char *prefix;
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unsigned char *mask;
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int relevance;
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};
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typedef struct _GdkPixbufModule GdkPixbufModule;
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struct _GdkPixbufModule {
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char *module_name;
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char *module_path;
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GModule *module;
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GdkPixbufFormat *info;
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GdkPixbuf *(* load) (FILE *f,
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GError **error);
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GdkPixbuf *(* load_xpm_data) (const char **data);
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/* Incremental loading */
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gpointer (* begin_load) (GdkPixbufModuleSizeFunc size_func,
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GdkPixbufModulePreparedFunc prepare_func,
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GdkPixbufModuleUpdatedFunc update_func,
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gpointer user_data,
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GError **error);
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gboolean (* stop_load) (gpointer context,
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GError **error);
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gboolean (* load_increment) (gpointer context,
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const guchar *buf,
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guint size,
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GError **error);
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/* Animation loading */
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GdkPixbufAnimation *(* load_animation) (FILE *f,
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GError **error);
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/* Saving */
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gboolean (* save) (FILE *f,
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GdkPixbuf *pixbuf,
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gchar **param_keys,
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gchar **param_values,
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GError **error);
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gboolean (*save_to_callback) (GdkPixbufSaveFunc save_func,
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gpointer user_data,
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GdkPixbuf *pixbuf,
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gchar **option_keys,
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gchar **option_values,
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GError **error);
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/*< private >*/
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void (*_reserved1) (void);
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void (*_reserved2) (void);
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void (*_reserved3) (void);
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void (*_reserved4) (void);
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void (*_reserved5) (void);
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};
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typedef void (* GdkPixbufModuleFillVtableFunc) (GdkPixbufModule *module);
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typedef void (* GdkPixbufModuleFillInfoFunc) (GdkPixbufFormat *info);
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/* key/value pairs that can be attached by the pixbuf loader */
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gboolean gdk_pixbuf_set_option (GdkPixbuf *pixbuf,
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const gchar *key,
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const gchar *value);
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typedef enum /*< skip >*/
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{
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GDK_PIXBUF_FORMAT_WRITABLE = 1 << 0,
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GDK_PIXBUF_FORMAT_SCALABLE = 1 << 1
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} GdkPixbufFormatFlags;
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struct _GdkPixbufFormat {
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gchar *name;
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GdkPixbufModulePattern *signature;
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gchar *domain;
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gchar *description;
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gchar **mime_types;
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gchar **extensions;
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guint32 flags;
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};
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#endif /* GDK_PIXBUF_ENABLE_BACKEND */
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G_END_DECLS
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#endif /* GDK_PIXBUF_IO_H */
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