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130 lines
4.2 KiB
C
130 lines
4.2 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_VISUAL_H__
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#define __GDK_VISUAL_H__
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#include <gdk/gdktypes.h>
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G_BEGIN_DECLS
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#define GDK_TYPE_VISUAL (gdk_visual_get_type ())
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#define GDK_VISUAL(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_VISUAL, GdkVisual))
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#define GDK_VISUAL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_VISUAL, GdkVisualClass))
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#define GDK_IS_VISUAL(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_VISUAL))
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#define GDK_IS_VISUAL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_VISUAL))
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#define GDK_VISUAL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_VISUAL, GdkVisualClass))
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typedef struct _GdkVisualClass GdkVisualClass;
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/* Types of visuals.
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* StaticGray:
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* Grayscale:
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* StaticColor:
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* PseudoColor:
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* TrueColor:
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* DirectColor:
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*/
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typedef enum
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{
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GDK_VISUAL_STATIC_GRAY,
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GDK_VISUAL_GRAYSCALE,
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GDK_VISUAL_STATIC_COLOR,
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GDK_VISUAL_PSEUDO_COLOR,
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GDK_VISUAL_TRUE_COLOR,
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GDK_VISUAL_DIRECT_COLOR
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} GdkVisualType;
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/* The visual type.
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* "type" is the type of visual this is (PseudoColor, TrueColor, etc).
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* "depth" is the bit depth of this visual.
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* "colormap_size" is the size of a colormap for this visual.
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* "bits_per_rgb" is the number of significant bits per red, green and blue.
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* The red, green and blue masks, shifts and precisions refer
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* to value needed to calculate pixel values in TrueColor and DirectColor
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* visuals. The "mask" is the significant bits within the pixel. The
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* "shift" is the number of bits left we must shift a primary for it
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* to be in position (according to the "mask"). "prec" refers to how
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* much precision the pixel value contains for a particular primary.
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*/
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struct _GdkVisual
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{
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GObject parent_instance;
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GdkVisualType type;
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gint depth;
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GdkByteOrder byte_order;
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gint colormap_size;
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gint bits_per_rgb;
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guint32 red_mask;
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gint red_shift;
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gint red_prec;
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guint32 green_mask;
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gint green_shift;
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gint green_prec;
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guint32 blue_mask;
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gint blue_shift;
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gint blue_prec;
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};
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GType gdk_visual_get_type (void) G_GNUC_CONST;
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#ifndef GDK_MULTIHEAD_SAFE
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gint gdk_visual_get_best_depth (void);
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GdkVisualType gdk_visual_get_best_type (void);
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GdkVisual* gdk_visual_get_system (void);
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GdkVisual* gdk_visual_get_best (void);
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GdkVisual* gdk_visual_get_best_with_depth (gint depth);
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GdkVisual* gdk_visual_get_best_with_type (GdkVisualType visual_type);
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GdkVisual* gdk_visual_get_best_with_both (gint depth,
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GdkVisualType visual_type);
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void gdk_query_depths (gint **depths,
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gint *count);
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void gdk_query_visual_types (GdkVisualType **visual_types,
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gint *count);
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GList* gdk_list_visuals (void);
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#endif
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GdkScreen *gdk_visual_get_screen (GdkVisual *visual);
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#ifndef GDK_DISABLE_DEPRECATED
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#define gdk_visual_ref(v) g_object_ref(v)
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#define gdk_visual_unref(v) g_object_unref(v)
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#endif
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G_END_DECLS
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#endif /* __GDK_VISUAL_H__ */
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