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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
#ifndef __GDK_VISUAL_H__
#define __GDK_VISUAL_H__
#include <gdk/gdktypes.h>
G_BEGIN_DECLS
#define GDK_TYPE_VISUAL (gdk_visual_get_type ())
#define GDK_VISUAL(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_VISUAL, GdkVisual))
#define GDK_IS_VISUAL(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_VISUAL))
/**
* GdkVisualType:
* @GDK_VISUAL_STATIC_GRAY: Each pixel value indexes a grayscale value
* directly.
* @GDK_VISUAL_GRAYSCALE: Each pixel is an index into a color map that
* maps pixel values into grayscale values. The color map can be
* changed by an application.
* @GDK_VISUAL_STATIC_COLOR: Each pixel value is an index into a predefined,
* unmodifiable color map that maps pixel values into RGB values.
* @GDK_VISUAL_PSEUDO_COLOR: Each pixel is an index into a color map that
* maps pixel values into rgb values. The color map can be changed by
* an application.
* @GDK_VISUAL_TRUE_COLOR: Each pixel value directly contains red, green,
* and blue components. Use gdk_visual_get_red_pixel_details(), etc,
* to obtain information about how the components are assembled into
* a pixel value.
* @GDK_VISUAL_DIRECT_COLOR: Each pixel value contains red, green, and blue
* components as for %GDK_VISUAL_TRUE_COLOR, but the components are
* mapped via a color table into the final output table instead of
* being converted directly.
*
* A set of values that describe the manner in which the pixel values
* for a visual are converted into RGB values for display.
*/
typedef enum
{
GDK_VISUAL_STATIC_GRAY,
GDK_VISUAL_GRAYSCALE,
GDK_VISUAL_STATIC_COLOR,
GDK_VISUAL_PSEUDO_COLOR,
GDK_VISUAL_TRUE_COLOR,
GDK_VISUAL_DIRECT_COLOR
} GdkVisualType;
/**
* GdkVisual:
*
* The #GdkVisual structure contains information about
* a particular visual.
*/
GType gdk_visual_get_type (void) G_GNUC_CONST;
#ifndef GDK_MULTIHEAD_SAFE
gint gdk_visual_get_best_depth (void);
GdkVisualType gdk_visual_get_best_type (void);
GdkVisual* gdk_visual_get_system (void);
GdkVisual* gdk_visual_get_best (void);
GdkVisual* gdk_visual_get_best_with_depth (gint depth);
GdkVisual* gdk_visual_get_best_with_type (GdkVisualType visual_type);
GdkVisual* gdk_visual_get_best_with_both (gint depth,
GdkVisualType visual_type);
void gdk_query_depths (gint **depths,
gint *count);
void gdk_query_visual_types (GdkVisualType **visual_types,
gint *count);
GList* gdk_list_visuals (void);
#endif
GdkScreen *gdk_visual_get_screen (GdkVisual *visual);
GdkVisualType gdk_visual_get_visual_type (GdkVisual *visual);
gint gdk_visual_get_depth (GdkVisual *visual);
GdkByteOrder gdk_visual_get_byte_order (GdkVisual *visual);
gint gdk_visual_get_colormap_size (GdkVisual *visual);
gint gdk_visual_get_bits_per_rgb (GdkVisual *visual);
void gdk_visual_get_red_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
void gdk_visual_get_green_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
void gdk_visual_get_blue_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision);
G_END_DECLS
#endif /* __GDK_VISUAL_H__ */
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