gtk2/gdk/gdkdrawable.h

/* 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_DRAWABLE_H__
#define __GDK_DRAWABLE_H__

#include <gdk/gdktypes.h>
#include <gdk-pixbuf/gdk-pixbuf.h>

#include <cairo.h>

G_BEGIN_DECLS

typedef struct _GdkDrawableClass GdkDrawableClass;

#define GDK_TYPE_DRAWABLE              (gdk_drawable_get_type ())
#define GDK_DRAWABLE(object)           (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_DRAWABLE, GdkDrawable))
#define GDK_DRAWABLE_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_DRAWABLE, GdkDrawableClass))
#define GDK_IS_DRAWABLE(object)        (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_DRAWABLE))
#define GDK_IS_DRAWABLE_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_DRAWABLE))
#define GDK_DRAWABLE_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_DRAWABLE, GdkDrawableClass))

struct _GdkDrawable
{
  GObject parent_instance;
};
 
struct _GdkDrawableClass 
{
  GObjectClass parent_class;
  
  gint (*get_depth)      (GdkDrawable  *drawable);
  void (*get_size)       (GdkDrawable  *drawable,
                          gint         *width,
                          gint         *height);

  void (*set_colormap)   (GdkDrawable  *drawable,
                          GdkColormap  *cmap);

  GdkColormap* (*get_colormap)	(GdkDrawable  *drawable);
  GdkVisual*   (*get_visual)	(GdkDrawable  *drawable);
  GdkScreen*   (*get_screen)	(GdkDrawable  *drawable);

  cairo_region_t*   (*get_clip_region)    (GdkDrawable  *drawable);
  cairo_region_t*   (*get_visible_region) (GdkDrawable  *drawable);

  cairo_surface_t *(*ref_cairo_surface) (GdkDrawable *drawable);

  GdkDrawable *(*get_source_drawable) (GdkDrawable *drawable);

  void         (*set_cairo_clip)      (GdkDrawable *drawable,
				       cairo_t *cr);

  cairo_surface_t * (*create_cairo_surface) (GdkDrawable *drawable,
					     int width,
					     int height);

  /* Padding for future expansion */
  void         (*_gdk_reserved7)  (void);
  void         (*_gdk_reserved9)  (void);
  void         (*_gdk_reserved10) (void);
  void         (*_gdk_reserved11) (void);
  void         (*_gdk_reserved12) (void);
  void         (*_gdk_reserved13) (void);
  void         (*_gdk_reserved14) (void);
  void         (*_gdk_reserved15) (void);
};

GType           gdk_drawable_get_type     (void) G_GNUC_CONST;

/* Manipulation of drawables
 */
void            gdk_drawable_get_size     (GdkDrawable	  *drawable,
					   gint	          *width,
					   gint  	  *height);
void	        gdk_drawable_set_colormap (GdkDrawable	  *drawable,
					   GdkColormap	  *colormap);
GdkColormap*    gdk_drawable_get_colormap (GdkDrawable	  *drawable);
GdkVisual*      gdk_drawable_get_visual   (GdkDrawable	  *drawable);
gint            gdk_drawable_get_depth    (GdkDrawable	  *drawable);
GdkScreen*	gdk_drawable_get_screen   (GdkDrawable    *drawable);
GdkDisplay*	gdk_drawable_get_display  (GdkDrawable    *drawable);

cairo_region_t *gdk_drawable_get_clip_region    (GdkDrawable *drawable);
cairo_region_t *gdk_drawable_get_visible_region (GdkDrawable *drawable);

G_END_DECLS

#endif /* __GDK_DRAWABLE_H__ */