gdkcolor.h

Go to the documentation of this file.

/* 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/.
 */
 
#ifndef __GDK_COLOR_H__
#define __GDK_COLOR_H__
 
#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
#error "Only <gdk/gdk.h> can be included directly."
#endif
 
#include <cairo.h>
#include <gdk/gdktypes.h>
 
G_BEGIN_DECLS
 
/* The color type.
 *   A color consists of red, green and blue values in the
 *    range 0-65535 and a pixel value. The pixel value is highly
 *    dependent on the depth and colormap which this color will
 *    be used to draw into. Therefore, sharing colors between
 *    colormaps is a bad idea.
 */
struct _GdkColor
{
  guint32 pixel;
  guint16 red;
  guint16 green;
  guint16 blue;
};
 
/* The colormap type.
 */
 
typedef struct _GdkColormapClass GdkColormapClass;
 
#define GDK_TYPE_COLORMAP              (gdk_colormap_get_type ())
#define GDK_COLORMAP(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_COLORMAP, GdkColormap))
#define GDK_COLORMAP_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_COLORMAP, GdkColormapClass))
#define GDK_IS_COLORMAP(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_COLORMAP))
#define GDK_IS_COLORMAP_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_COLORMAP))
#define GDK_COLORMAP_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_COLORMAP, GdkColormapClass))
 
#define GDK_TYPE_COLOR                 (gdk_color_get_type ())
 
struct _GdkColormap
{
  /*< private >*/
  GObject parent_instance;
 
  /*< public >*/
  gint      GSEAL (size);
  GdkColor *GSEAL (colors);
 
  /*< private >*/
  GdkVisual *GSEAL (visual);
  
  gpointer GSEAL (windowing_data);
};
 
struct _GdkColormapClass
{
  GObjectClass parent_class;
 
};
 
GType        gdk_colormap_get_type (void) G_GNUC_CONST;
 
GdkColormap* gdk_colormap_new     (GdkVisual   *visual,
                                   gboolean     allocate);
 
#ifndef GDK_DISABLE_DEPRECATED
GdkColormap* gdk_colormap_ref     (GdkColormap *cmap);
void         gdk_colormap_unref   (GdkColormap *cmap);
#endif 
 
#ifndef GDK_MULTIHEAD_SAFE
GdkColormap* gdk_colormap_get_system            (void);
#endif
 
GdkScreen *gdk_colormap_get_screen (GdkColormap *cmap);
 
#ifndef GDK_DISABLE_DEPRECATED
gint gdk_colormap_get_system_size  (void);
#endif
 
#if !defined (GDK_DISABLE_DEPRECATED) || defined (GDK_COMPILATION)
/* Used by gdk_colors_store () */
void gdk_colormap_change (GdkColormap   *colormap,
                          gint           ncolors);
#endif 
 
gint  gdk_colormap_alloc_colors   (GdkColormap    *colormap,
                                   GdkColor       *colors,
                                   gint            n_colors,
                                   gboolean        writeable,
                                   gboolean        best_match,
                                   gboolean       *success);
gboolean gdk_colormap_alloc_color (GdkColormap    *colormap,
                                   GdkColor       *color,
                                   gboolean        writeable,
                                   gboolean        best_match);
void     gdk_colormap_free_colors (GdkColormap    *colormap,
                                   const GdkColor *colors,
                                   gint            n_colors);
void     gdk_colormap_query_color (GdkColormap    *colormap,
                                   gulong          pixel,
                                   GdkColor       *result);
 
GdkVisual *gdk_colormap_get_visual (GdkColormap *colormap);
 
GdkColor *gdk_color_copy      (const GdkColor *color);
void      gdk_color_free      (GdkColor       *color);
gboolean  gdk_color_parse     (const gchar    *spec,
                               GdkColor       *color);
guint     gdk_color_hash      (const GdkColor *colora);
gboolean  gdk_color_equal     (const GdkColor *colora,
                               const GdkColor *colorb);
gchar *   gdk_color_to_string (const GdkColor *color);
 
GType     gdk_color_get_type (void) G_GNUC_CONST;
 
/* The following functions are deprecated */
#ifndef GDK_DISABLE_DEPRECATED
void gdk_colors_store    (GdkColormap   *colormap,
                          GdkColor      *colors,
                          gint           ncolors);
gint gdk_color_white     (GdkColormap   *colormap,
                          GdkColor      *color);
gint gdk_color_black     (GdkColormap   *colormap,
                          GdkColor      *color);
gint gdk_color_alloc     (GdkColormap   *colormap,
                          GdkColor      *color);
gint gdk_color_change    (GdkColormap   *colormap,
                          GdkColor      *color);
#endif /* GDK_DISABLE_DEPRECATED */
 
#if !defined (GDK_DISABLE_DEPRECATED) || defined (GDK_COMPILATION)
/* Used by gdk_rgb_try_colormap () */
gint gdk_colors_alloc    (GdkColormap   *colormap,
                          gboolean       contiguous,
                          gulong        *planes,
                          gint           nplanes,
                          gulong        *pixels,
                          gint           npixels);
void gdk_colors_free     (GdkColormap   *colormap,
                          gulong        *pixels,
                          gint           npixels,
                          gulong         planes);
#endif /* !GDK_DISABLE_DEPRECATED || GDK_COMPILATION */
 
G_END_DECLS
 
#endif /* __GDK_COLOR_H__ */