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116 lines
3.8 KiB
C
116 lines
3.8 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
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#error "Only <gdk/gdk.h> can be included directly."
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#endif
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#ifndef __GDK_IMAGE_H__
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#define __GDK_IMAGE_H__
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#include <gdk/gdktypes.h>
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G_BEGIN_DECLS
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/* Types of images.
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* Normal: Normal X image type. These are slow as they involve passing
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* the entire image through the X connection each time a draw
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* request is required. On Win32, a bitmap.
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* Shared: Shared memory X image type. These are fast as the X server
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* and the program actually use the same piece of memory. They
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* should be used with care though as there is the possibility
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* for both the X server and the program to be reading/writing
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* the image simultaneously and producing undesired results.
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* On Win32, also a bitmap.
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*/
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typedef enum
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{
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GDK_IMAGE_NORMAL,
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GDK_IMAGE_SHARED,
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GDK_IMAGE_FASTEST
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} GdkImageType;
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typedef struct _GdkImageClass GdkImageClass;
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#define GDK_TYPE_IMAGE (gdk_image_get_type ())
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#define GDK_IMAGE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_IMAGE, GdkImage))
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#define GDK_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_IMAGE, GdkImageClass))
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#define GDK_IS_IMAGE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_IMAGE))
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#define GDK_IS_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_IMAGE))
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#define GDK_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_IMAGE, GdkImageClass))
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struct _GdkImage
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{
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GObject parent_instance;
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/*< public >*/
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GdkImageType type; /* read only. */
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GdkVisual *visual; /* read only. visual used to create the image */
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GdkByteOrder byte_order; /* read only. */
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gint width; /* read only. */
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gint height; /* read only. */
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guint16 depth; /* read only. */
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guint16 bpp; /* read only. bytes per pixel */
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guint16 bpl; /* read only. bytes per line */
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guint16 bits_per_pixel; /* read only. bits per pixel */
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gpointer mem;
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GdkColormap *colormap; /* read only. */
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/*< private >*/
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gpointer windowing_data; /* read only. */
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};
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struct _GdkImageClass
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{
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GObjectClass parent_class;
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};
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GType gdk_image_get_type (void) G_GNUC_CONST;
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GdkImage* gdk_image_new (GdkImageType type,
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GdkVisual *visual,
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gint width,
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gint height);
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void gdk_image_put_pixel (GdkImage *image,
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gint x,
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gint y,
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guint32 pixel);
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guint32 gdk_image_get_pixel (GdkImage *image,
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gint x,
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gint y);
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void gdk_image_set_colormap (GdkImage *image,
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GdkColormap *colormap);
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GdkColormap* gdk_image_get_colormap (GdkImage *image);
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G_END_DECLS
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#endif /* __GDK_IMAGE_H__ */
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