forked from AuroraMiddleware/gtk
9a1c50c961
1999-10-28 Jonathan Blandford <jrb@redhat.com> * src/gdk-pixbuf.h: turned convenience macros into convenience
122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/* GdkPixbuf library - Main header file
|
||
*
|
||
* Copyright (C) 1999 The Free Software Foundation
|
||
*
|
||
* Authors: Mark Crichton <crichton@gimp.org>
|
||
* Miguel de Icaza <miguel@gnu.org>
|
||
* Federico Mena-Quintero <federico@gimp.org>
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Library General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2 of the License, or (at your option) any later version.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Library General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Library General Public
|
||
* License along with this library; if not, write to the
|
||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
* Boston, MA 02111-1307, USA.
|
||
*/
|
||
|
||
#ifndef GDK_PIXBUF_H
|
||
#define GDK_PIXBUF_H
|
||
|
||
#include <libart_lgpl/art_misc.h>
|
||
#include <libart_lgpl/art_pixbuf.h>
|
||
#include <gdk/gdk.h>
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#pragma }
|
||
#endif
|
||
|
||
|
||
|
||
/* GdkPixbuf structure */
|
||
|
||
typedef struct _GdkPixbuf GdkPixbuf;
|
||
|
||
struct _GdkPixbuf {
|
||
/* Reference count */
|
||
int ref_count;
|
||
|
||
/* Libart pixbuf */
|
||
ArtPixBuf *art_pixbuf;
|
||
};
|
||
|
||
|
||
|
||
/* Convenience functions */
|
||
|
||
ArtPixFormat gdk_pixbuf_get_format (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_n_channels (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_has_alpha (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_bits_per_sample (GdkPixbuf *pixbuf);
|
||
guchar *gdk_pixbuf_get_pixels (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_width (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_height (GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_rowstride (GdkPixbuf *pixbuf);
|
||
|
||
/* Reference counting */
|
||
|
||
void gdk_pixbuf_ref (GdkPixbuf *pixbuf);
|
||
void gdk_pixbuf_unref (GdkPixbuf *pixbuf);
|
||
|
||
/* Constructors */
|
||
/* Wrap a libart pixbuf */
|
||
|
||
GdkPixbuf *gdk_pixbuf_new_from_art_pixbuf (ArtPixBuf *art_pixbuf);
|
||
|
||
/* Create a blank pixbuf with an optimal rowstride and a new buffer */
|
||
|
||
GdkPixbuf *gdk_pixbuf_new (ArtPixFormat format, gboolean has_alpha, int bits_per_sample,
|
||
int width, int height);
|
||
|
||
/* Simple loading */
|
||
|
||
GdkPixbuf *gdk_pixbuf_new_from_file (const char *filename);
|
||
GdkPixbuf *gdk_pixbuf_new_from_data (guchar *data, ArtPixFormat format, gboolean has_alpha,
|
||
int width, int height, int rowstride,
|
||
ArtDestroyNotify dfunc, gpointer dfunc_data);
|
||
GdkPixbuf *gdk_pixbuf_new_from_xpm_data (const gchar **data);
|
||
|
||
/* Rendering to a drawable */
|
||
|
||
typedef enum {
|
||
GDK_PIXBUF_ALPHA_BILEVEL,
|
||
GDK_PIXBUF_ALPHA_FULL
|
||
} GdkPixbufAlphaMode;
|
||
|
||
void gdk_pixbuf_render_threshold_alpha (GdkPixbuf *pixbuf, GdkBitmap *bitmap,
|
||
int src_x, int src_y,
|
||
int dest_x, int dest_y,
|
||
int width, int height,
|
||
int alpha_threshold);
|
||
|
||
void gdk_pixbuf_render_to_drawable (GdkPixbuf *pixbuf, GdkDrawable *drawable,
|
||
int src_x, int src_y,
|
||
int dest_x, int dest_y,
|
||
int width, int height,
|
||
GdkPixbufAlphaMode alpha_mode,
|
||
int alpha_threshold,
|
||
GdkRgbDither dither,
|
||
int x_dither, int y_dither);
|
||
|
||
/* Transformations */
|
||
#if 0
|
||
GdkPixbuf *gdk_pixbuf_scale (const GdkPixbuf *pixbuf, gint w, gint h);
|
||
GdkPixbuf *gdk_pixbuf_rotate (GdkPixbuf *pixbuf, gdouble angle);
|
||
#endif
|
||
|
||
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif
|