forked from AuroraMiddleware/gtk
518f32d97e
2000-10-06 Havoc Pennington <hp@redhat.com>
* Makefile.am (SRC_SUBDIRS): contrib subdir
* gdk/gdkpixbuf.h: Move GdkPixbufAlphaMode to gdk-pixbuf library,
so it can be used in Xlib version
* demos/testpixbuf.c (update_timeout): error checking from 1.0
tree
* gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_get_pixbuf): Sync
change from 1.0 tree that returns first frame of animation
if the loaded file is an animation.
* contrib: add new directory to hold stuff that comes with GTK+
but isn't really part of GTK+ (for now, gdk-pixbuf-xlib)
* configure.in: add contrib/*
2000-10-06 Havoc Pennington <hp@redhat.com>
* gdk-pixbuf.h: add GdkPixbufAlphaMode
2000-10-06 Havoc Pennington <hp@redhat.com>
This entry is a summary of the merged-in changes from 1.0.
Relevant original ChangeLog entries are spliced in after
this entry; the files they refer to are from the 1.0
gdk-pixbuf sources.
* pixops/pixops.c (pixops_composite_nearest): sync a small fix
from 1.0
* io-xpm.c (xpm_seek_string): add fscanf error check from 1.0
Add progressive loader from 1.0
* io-tiff.c (gdk_pixbuf__tiff_image_begin_load): mem leak fixes
from 1.0 tree
* io-pnm.c: new version from 1.0 tree
* io-jpeg.c (gdk_pixbuf__jpeg_image_load): sync from 1.0, use
malloc not g_malloc
* io-gif.c (lzw_read_byte): sync from 1.0, change a g_error to
g_warning
(gif_get_next_step): return 0 here, sync from 1.0
* gdk-pixbuf-util.c: sync email address change for Cody
Russell
2000-09-11 Jeffrey Stedfast <fejj@helixcode.com>
* gdk-pixbuf/io-pnm.c: Pretty much totally rewrote again because
last nights code was still "broken". Should now properly handle
all error conditions gracefully.
2000-09-10 Jeffrey Stedfast <fejj@helixcode.com>
* gdk-pixbuf/io-pnm.c: Rewrote.
2000-09-09 Federico Mena Quintero <federico@helixcode.com>
* gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): Compute
the correct dest offset.
2000-08-25 Federico Mena Quintero <federico@helixcode.com>
* gdk-pixbuf/io-xpm.c: #include <unistd.h>
2000-08-05 Larry Ewing <lewing@helixcode.com>
* gdk-pixbuf/io-tiff.c: stop leaking context->tempname.
* gdk-pixbuf/io-xpm.c: same as above.
2000-07-26 Michael Meeks <michael@helixcode.com>
* gdk-pixbuf/io-jpeg.c (gdk_pixbuf__jpeg_image_load): make
g_malloc a malloc.
2000-07-21 Larry Ewing <lewing@helixcode.com>
* gdk-pixbuf/io-xpm.c: add a fake progressive loader so that
xpm at least supports the progressive interface like the one in
io-tiff.c. This should be reimplemented as an actual progressive
loader.
2000-07-19 Jonathan Blandford <jrb@redhat.com>
* demo/pixbuf-demo.c (update_timeout): changed scaling level to
make it look better.
* gdk-pixbuf/testpixbuf.c (update_timeout): Patch from michael
meeks to handle errors better.
283 lines
9.4 KiB
C
283 lines
9.4 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>
|
||
* Havoc Pennington <hp@redhat.com>
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser 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
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser 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 <glib.h>
|
||
#include <gdk-pixbuf/gdk-pixbuf-features.h>
|
||
#include <gobject/gobject.h>
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif
|
||
|
||
|
||
|
||
/* Alpha compositing mode */
|
||
typedef enum
|
||
{
|
||
GDK_PIXBUF_ALPHA_BILEVEL,
|
||
GDK_PIXBUF_ALPHA_FULL
|
||
} GdkPixbufAlphaMode;
|
||
|
||
/* Color spaces; right now only RGB is supported.
|
||
* Note that these values are encoded in inline pixbufs
|
||
* as ints, so don't reorder them
|
||
*/
|
||
typedef enum {
|
||
GDK_COLORSPACE_RGB
|
||
} GdkColorspace;
|
||
|
||
/* All of these are opaque structures */
|
||
typedef struct _GdkPixbuf GdkPixbuf;
|
||
typedef struct _GdkPixbufAnimation GdkPixbufAnimation;
|
||
typedef struct _GdkPixbufFrame GdkPixbufFrame;
|
||
|
||
#define GDK_TYPE_PIXBUF (gdk_pixbuf_get_type ())
|
||
#define GDK_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF, GdkPixbuf))
|
||
#define GDK_IS_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF))
|
||
|
||
#define GDK_TYPE_PIXBUF_ANIMATION (gdk_pixbuf_animation_get_type ())
|
||
#define GDK_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimation))
|
||
#define GDK_IS_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION))
|
||
|
||
|
||
/* Handler that must free the pixel array */
|
||
typedef void (* GdkPixbufDestroyNotify) (guchar *pixels, gpointer data);
|
||
|
||
#define GDK_PIXBUF_ERROR gdk_pixbuf_error_quark ()
|
||
|
||
typedef enum {
|
||
/* some kind of failure reading or writing files */
|
||
GDK_PIXBUF_ERROR_IO,
|
||
/* bad option value passed to save routine */
|
||
GDK_PIXBUF_ERROR_BAD_OPTION_VALUE,
|
||
/* unsupported image type (sort of an ENOSYS) */
|
||
GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
|
||
GDK_PIXBUF_ERROR_FAILED
|
||
} GdkPixbufErrorType;
|
||
|
||
GQuark gdk_pixbuf_error_quark () G_GNUC_CONST;
|
||
|
||
|
||
|
||
GType gdk_pixbuf_get_type (void) G_GNUC_CONST;
|
||
|
||
/* Reference counting */
|
||
|
||
GdkPixbuf *gdk_pixbuf_ref (GdkPixbuf *pixbuf);
|
||
void gdk_pixbuf_unref (GdkPixbuf *pixbuf);
|
||
|
||
/* GdkPixbuf accessors */
|
||
|
||
GdkColorspace gdk_pixbuf_get_colorspace (const GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_n_channels (const GdkPixbuf *pixbuf);
|
||
gboolean gdk_pixbuf_get_has_alpha (const GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_bits_per_sample (const GdkPixbuf *pixbuf);
|
||
guchar *gdk_pixbuf_get_pixels (const GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_width (const GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_height (const GdkPixbuf *pixbuf);
|
||
int gdk_pixbuf_get_rowstride (const GdkPixbuf *pixbuf);
|
||
|
||
|
||
|
||
/* Create a blank pixbuf with an optimal rowstride and a new buffer */
|
||
GdkPixbuf *gdk_pixbuf_new (GdkColorspace colorspace, gboolean has_alpha, int bits_per_sample,
|
||
int width, int height);
|
||
|
||
/* Copy a pixbuf */
|
||
|
||
GdkPixbuf *gdk_pixbuf_copy (const GdkPixbuf *pixbuf);
|
||
|
||
/* Simple loading */
|
||
|
||
GdkPixbuf *gdk_pixbuf_new_from_file (const char *filename);
|
||
|
||
GdkPixbuf *gdk_pixbuf_new_from_data (const guchar *data,
|
||
GdkColorspace colorspace,
|
||
gboolean has_alpha,
|
||
int bits_per_sample,
|
||
int width, int height,
|
||
int rowstride,
|
||
GdkPixbufDestroyNotify destroy_fn,
|
||
gpointer destroy_fn_data);
|
||
|
||
GdkPixbuf *gdk_pixbuf_new_from_xpm_data (const char **data);
|
||
|
||
/* Read an inline pixbuf */
|
||
GdkPixbuf *gdk_pixbuf_new_from_inline (const guchar *inline_pixbuf,
|
||
gboolean copy_pixels,
|
||
int length);
|
||
|
||
|
||
/* Saving */
|
||
|
||
gboolean gdk_pixbuf_save (GdkPixbuf *pixbuf,
|
||
const char *filename,
|
||
const char *format,
|
||
GError **err,
|
||
...);
|
||
|
||
gboolean gdk_pixbuf_savev (GdkPixbuf *pixbuf,
|
||
const char *filename,
|
||
const char *format,
|
||
char **option_keys,
|
||
char **option_values,
|
||
GError **err);
|
||
|
||
/* Adding an alpha channel */
|
||
GdkPixbuf *gdk_pixbuf_add_alpha (const GdkPixbuf *pixbuf, gboolean substitute_color,
|
||
guchar r, guchar g, guchar b);
|
||
|
||
/* Copy an area of a pixbuf onto another one */
|
||
void gdk_pixbuf_copy_area (const GdkPixbuf *src_pixbuf,
|
||
int src_x, int src_y,
|
||
int width, int height,
|
||
GdkPixbuf *dest_pixbuf,
|
||
int dest_x, int dest_y);
|
||
|
||
/* Brighten/darken and optionally make it pixelated-looking */
|
||
void gdk_pixbuf_saturate_and_pixelate (const GdkPixbuf *src,
|
||
GdkPixbuf *dest,
|
||
gfloat saturation,
|
||
gboolean pixelate);
|
||
|
||
|
||
|
||
/* Rendering to a drawable */
|
||
|
||
|
||
/* Scaling */
|
||
|
||
/* Interpolation modes */
|
||
typedef enum {
|
||
GDK_INTERP_NEAREST,
|
||
GDK_INTERP_TILES,
|
||
GDK_INTERP_BILINEAR,
|
||
GDK_INTERP_HYPER
|
||
} GdkInterpType;
|
||
|
||
void gdk_pixbuf_scale (const GdkPixbuf *src,
|
||
GdkPixbuf *dest,
|
||
int dest_x,
|
||
int dest_y,
|
||
int dest_width,
|
||
int dest_height,
|
||
double offset_x,
|
||
double offset_y,
|
||
double scale_x,
|
||
double scale_y,
|
||
GdkInterpType interp_type);
|
||
void gdk_pixbuf_composite (const GdkPixbuf *src,
|
||
GdkPixbuf *dest,
|
||
int dest_x,
|
||
int dest_y,
|
||
int dest_width,
|
||
int dest_height,
|
||
double offset_x,
|
||
double offset_y,
|
||
double scale_x,
|
||
double scale_y,
|
||
GdkInterpType interp_type,
|
||
int overall_alpha);
|
||
void gdk_pixbuf_composite_color (const GdkPixbuf *src,
|
||
GdkPixbuf *dest,
|
||
int dest_x,
|
||
int dest_y,
|
||
int dest_width,
|
||
int dest_height,
|
||
double offset_x,
|
||
double offset_y,
|
||
double scale_x,
|
||
double scale_y,
|
||
GdkInterpType interp_type,
|
||
int overall_alpha,
|
||
int check_x,
|
||
int check_y,
|
||
int check_size,
|
||
guint32 color1,
|
||
guint32 color2);
|
||
|
||
GdkPixbuf *gdk_pixbuf_scale_simple (const GdkPixbuf *src,
|
||
int dest_width,
|
||
int dest_height,
|
||
GdkInterpType interp_type);
|
||
|
||
GdkPixbuf *gdk_pixbuf_composite_color_simple (const GdkPixbuf *src,
|
||
int dest_width,
|
||
int dest_height,
|
||
GdkInterpType interp_type,
|
||
int overall_alpha,
|
||
int check_size,
|
||
guint32 color1,
|
||
guint32 color2);
|
||
|
||
|
||
|
||
/* Animation support */
|
||
|
||
/* GIF-like animation overlay modes for frames */
|
||
typedef enum {
|
||
GDK_PIXBUF_FRAME_RETAIN,
|
||
GDK_PIXBUF_FRAME_DISPOSE,
|
||
GDK_PIXBUF_FRAME_REVERT
|
||
} GdkPixbufFrameAction;
|
||
|
||
GType gdk_pixbuf_animation_get_type (void) G_GNUC_CONST;
|
||
|
||
GdkPixbufAnimation *gdk_pixbuf_animation_new_from_file (const char *filename);
|
||
|
||
GdkPixbufAnimation *gdk_pixbuf_animation_ref (GdkPixbufAnimation *animation);
|
||
void gdk_pixbuf_animation_unref (GdkPixbufAnimation *animation);
|
||
|
||
int gdk_pixbuf_animation_get_width (GdkPixbufAnimation *animation);
|
||
int gdk_pixbuf_animation_get_height (GdkPixbufAnimation *animation);
|
||
GList *gdk_pixbuf_animation_get_frames (GdkPixbufAnimation *animation);
|
||
int gdk_pixbuf_animation_get_num_frames (GdkPixbufAnimation *animation);
|
||
|
||
/* Frame accessors */
|
||
|
||
GdkPixbuf *gdk_pixbuf_frame_get_pixbuf (GdkPixbufFrame *frame);
|
||
int gdk_pixbuf_frame_get_x_offset (GdkPixbufFrame *frame);
|
||
int gdk_pixbuf_frame_get_y_offset (GdkPixbufFrame *frame);
|
||
int gdk_pixbuf_frame_get_delay_time (GdkPixbufFrame *frame);
|
||
GdkPixbufFrameAction gdk_pixbuf_frame_get_action (GdkPixbufFrame *frame);
|
||
|
||
|
||
/* General (presently empty) initialization hooks, primarily for gnome-libs */
|
||
void gdk_pixbuf_preinit (gpointer app, gpointer modinfo);
|
||
void gdk_pixbuf_postinit (gpointer app, gpointer modinfo);
|
||
/* A more user-friendly init function */
|
||
void gdk_pixbuf_init (void);
|
||
|
||
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif
|