/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
#ifndef __GTK_SCROLLPANE_H__
#define __GTK_SCROLLPANE_H__

#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gtk/gtkobject.h>

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

#define GTK_SCROLLPANE(obj)          GTK_CHECK_CAST (obj, gtk_scrollpane_get_type (), GtkScrollpane)
#define GTK_SCROLLPANE_CLASS(klass)  GTK_CHECK_CLASS_CAST (klass, gtk_scrollpane_get_type (), GtkScrollpaneClass)
#define GTK_IS_SCROLLPANE(obj)       GTK_CHECK_TYPE (obj, gtk_scrollpane_get_type ())

  typedef struct _GtkScrollpane GtkScrollpane;
  typedef struct _GtkScrollpaneClass GtkScrollpaneClass;

  struct _GtkScrollpane
    {
      GtkWidget           widget;

      GdkWindow          *trough;
      GdkWindow          *slider;

      /* width/heigth */
      gfloat              aspect_ratio;

      /* update policy (GTK_UPDATE_[CONTINUOUS/DELAYED/DISCONTINUOUS]) */
      guint               policy:2;

      gint                min_slider_width;
      gint                min_slider_height;

      gint                slider_width;
      gint                slider_height;
      gint                trough_width;
      gint                trough_height;

      gint                moving;
      gdouble             x_offset;
      gdouble             y_offset;

      GtkAdjustment      *Xadjustment;
      GtkAdjustment      *Yadjustment;
    };

  struct _GtkScrollpaneClass
    {
      GtkWidgetClass      parent_class;

      void                (*draw_background) (GtkScrollpane * sp);
      void                (*draw_trough) (GtkScrollpane * sp);
      void                (*draw_slider) (GtkScrollpane * sp);
      void                (*middle_clicked) (GtkScrollpane * sp);
      void                (*right_clicked) (GtkScrollpane * sp);
    };

/*  Member functions */
  guint               gtk_scrollpane_get_type(void);
  GtkWidget          *gtk_scrollpane_new(GtkAdjustment * Xadjustment,
					 GtkAdjustment * Yadjustment,
					 gint aspect_ratio);
  gboolean            gtk_scrollpane_step_up(GtkScrollpane * sp);
  gboolean            gtk_scrollpane_step_down(GtkScrollpane * sp);
  gboolean            gtk_scrollpane_step_left(GtkScrollpane * sp);
  gboolean            gtk_scrollpane_step_right(GtkScrollpane * sp);
  guint               gtk_range_get_type(void);

#ifdef __cplusplus
}
#endif				/* __cplusplus */

#endif