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/* GTK - The GIMP Toolkit
 * 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.
 *
 * GtkLayout: Widget for scrolling of arbitrary-sized areas.
 *
 * Copyright Owen Taylor, 1998
 */

/*
 * 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 __GTK_LAYOUT_H
#define __GTK_LAYOUT_H

#include <gdk/gdk.h>
#include <gtk/gtkcontainer.h>
#include <gtk/gtkadjustment.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


#define GTK_TYPE_LAYOUT            (gtk_layout_get_type ())
#define GTK_LAYOUT(obj)            (GTK_CHECK_CAST ((obj), GTK_TYPE_LAYOUT, GtkLayout))
#define GTK_LAYOUT_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), GTK_TYPE_LAYOUT, GtkLayoutClass))
#define GTK_IS_LAYOUT(obj)         (GTK_CHECK_TYPE ((obj), GTK_TYPE_LAYOUT))
#define GTK_IS_LAYOUT_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), GTK_TYPE_LAYOUT))
#define GTK_LAYOUT_GET_CLASS(obj)  (GTK_CHECK_GET_CLASS ((obj), GTK_TYPE_LAYOUT, GtkLayoutClass))


typedef struct _GtkLayout        GtkLayout;
typedef struct _GtkLayoutClass   GtkLayoutClass;

struct _GtkLayout {
  GtkContainer container;

  GList *children;

  guint width;
  guint height;

  GtkAdjustment *hadjustment;
  GtkAdjustment *vadjustment;

  /*< public >*/
  GdkWindow *bin_window;

  /*< private >*/
  GdkVisibilityState visibility;
  gint scroll_x;
  gint scroll_y;

  guint freeze_count;
};

struct _GtkLayoutClass {
  GtkContainerClass parent_class;

  void  (*set_scroll_adjustments)   (GtkLayout	    *layout,
				     GtkAdjustment  *hadjustment,
				     GtkAdjustment  *vadjustment);
};

GtkType        gtk_layout_get_type        (void) G_GNUC_CONST;
GtkWidget*     gtk_layout_new             (GtkAdjustment *hadjustment,
				           GtkAdjustment *vadjustment);
void           gtk_layout_put             (GtkLayout     *layout, 
		                           GtkWidget     *child_widget, 
		                           gint           x, 
		                           gint           y);
  
void           gtk_layout_move            (GtkLayout     *layout, 
		                           GtkWidget     *child_widget, 
		                           gint           x, 
		                           gint           y);
  
void           gtk_layout_set_size        (GtkLayout     *layout, 
			                   guint          width,
			                   guint          height);
void           gtk_layout_get_size        (GtkLayout     *layout,
					   guint         *width,
					   guint         *height);

GtkAdjustment* gtk_layout_get_hadjustment (GtkLayout     *layout);
GtkAdjustment* gtk_layout_get_vadjustment (GtkLayout     *layout);
void           gtk_layout_set_hadjustment (GtkLayout     *layout,
					   GtkAdjustment *adjustment);
void           gtk_layout_set_vadjustment (GtkLayout     *layout,
					   GtkAdjustment *adjustment);


#ifndef GTK_DISABLE_DEPRECATED
/* These disable and enable moving and repainting the scrolling window
 * of the GtkLayout, respectively.  If you want to update the layout's
 * offsets but do not want it to repaint itself, you should use these
 * functions.
 *
 * - I don't understand these are supposed to work, so I suspect
 * - they don't now.                    OWT 1/20/98
 */
void           gtk_layout_freeze          (GtkLayout     *layout);
void           gtk_layout_thaw            (GtkLayout     *layout);
#endif /* GTK_DISABLE_DEPRECATED */

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* __GTK_LAYOUT_H */