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c6a5074295
It turned out no vfuncs were necessary. I've decided to move the screen member up to GdkVisual, since it is the same in all backends. The X11 backend subclasses now, to add the X members that it needs to keep track of. GdkVisual and GdkVisualClass are hidden now.
131 lines
5.3 KiB
C
131 lines
5.3 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 (__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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/**
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* GdkVisualType:
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* @GDK_VISUAL_STATIC_GRAY: Each pixel value indexes a grayscale value
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* directly.
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* @GDK_VISUAL_GRAYSCALE: Each pixel is an index into a color map that
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* maps pixel values into grayscale values. The color map can be
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* changed by an application.
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* @GDK_VISUAL_STATIC_COLOR: Each pixel value is an index into a predefined,
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* unmodifiable color map that maps pixel values into RGB values.
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* @GDK_VISUAL_PSEUDO_COLOR: Each pixel is an index into a color map that
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* maps pixel values into rgb values. The color map can be changed by
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* an application.
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* @GDK_VISUAL_TRUE_COLOR: Each pixel value directly contains red, green,
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* and blue components. Use gdk_visual_get_red_pixel_details(), etc,
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* to obtain information about how the components are assembled into
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* a pixel value.
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* @GDK_VISUAL_DIRECT_COLOR: Each pixel value contains red, green, and blue
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* components as for %GDK_VISUAL_TRUE_COLOR, but the components are
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* mapped via a color table into the final output table instead of
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* being converted directly.
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*
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* A set of values that describe the manner in which the pixel values
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* for a visual are converted into RGB values for display.
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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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/**
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* GdkVisual:
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*
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* The #GdkVisual structure contains information about
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* a particular visual.
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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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GdkVisualType gdk_visual_get_visual_type (GdkVisual *visual);
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gint gdk_visual_get_depth (GdkVisual *visual);
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GdkByteOrder gdk_visual_get_byte_order (GdkVisual *visual);
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gint gdk_visual_get_colormap_size (GdkVisual *visual);
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gint gdk_visual_get_bits_per_rgb (GdkVisual *visual);
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void gdk_visual_get_red_pixel_details (GdkVisual *visual,
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guint32 *mask,
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gint *shift,
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gint *precision);
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void gdk_visual_get_green_pixel_details (GdkVisual *visual,
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guint32 *mask,
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gint *shift,
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gint *precision);
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void gdk_visual_get_blue_pixel_details (GdkVisual *visual,
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guint32 *mask,
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gint *shift,
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gint *precision);
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G_END_DECLS
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#endif /* __GDK_VISUAL_H__ */
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