/* 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.

 */

/*

 * 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_RANGE_H__

#define __GTK_RANGE_H__

#if defined(GTK_DISABLE_SINGLE_INCLUDES) && !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)

#error "Only <gtk/gtk.h> can be included directly."

#endif

#include <gtk/gtkadjustment.h>

#include <gtk/gtkwidget.h>

G_BEGIN_DECLS

#define GTK_TYPE_RANGE            (gtk_range_get_type ())

#define GTK_RANGE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_RANGE, GtkRange))

#define GTK_RANGE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_RANGE, GtkRangeClass))

#define GTK_IS_RANGE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_RANGE))

#define GTK_IS_RANGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RANGE))

#define GTK_RANGE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_RANGE, GtkRangeClass))

/* These two are private/opaque types, ignore */

typedef struct _GtkRangeLayout    GtkRangeLayout;

typedef struct _GtkRangeStepTimer GtkRangeStepTimer;

typedef struct _GtkRange        GtkRange;

typedef struct _GtkRangeClass   GtkRangeClass;

struct _GtkRange

{

  GtkWidget widget;

  GtkAdjustment *GSEAL (adjustment);

  GtkUpdateType GSEAL (update_policy);

  guint GSEAL (inverted) : 1;

  /*< protected >*/

  guint GSEAL (flippable) : 1;

  /* Steppers are: < > ---- < >

   *               a b      c d

   */

  guint GSEAL (has_stepper_a) : 1;

  guint GSEAL (has_stepper_b) : 1;

  guint GSEAL (has_stepper_c) : 1;

  guint GSEAL (has_stepper_d) : 1;

  guint GSEAL (need_recalc) : 1;

  guint GSEAL (slider_size_fixed) : 1;

  gint GSEAL (min_slider_size);

  GtkOrientation GSEAL (orientation);

  /* Area of entire stepper + trough assembly in widget->window coords */

  GdkRectangle GSEAL (range_rect);

  /* Slider range along the long dimension, in widget->window coords */

  gint GSEAL (slider_start);

  gint GSEAL (slider_end);

  /* Round off value to this many digits, -1 for no rounding */

  gint GSEAL (round_digits);

  /*< private >*/

  guint GSEAL (trough_click_forward) : 1;  /* trough click was on the forward side of slider */

  guint GSEAL (update_pending) : 1;        /* need to emit value_changed */

  GtkRangeLayout *GSEAL (layout);

  GtkRangeStepTimer *GSEAL (timer);

  gint GSEAL (slide_initial_slider_position);

  gint GSEAL (slide_initial_coordinate);

  guint GSEAL (update_timeout_id);

  GdkWindow *GSEAL (event_window);

};

struct _GtkRangeClass

{

  GtkWidgetClass parent_class;

  /* what detail to pass to GTK drawing functions */

  gchar *slider_detail;

  gchar *stepper_detail;

  void (* value_changed)    (GtkRange     *range);

  void (* adjust_bounds)    (GtkRange     *range,

                             gdouble	   new_value);

  /* action signals for keybindings */

  void (* move_slider)      (GtkRange     *range,

                             GtkScrollType scroll);

  /* Virtual functions */

  void (* get_range_border) (GtkRange     *range,

                             GtkBorder    *border_);

  gboolean (* change_value) (GtkRange     *range,

                             GtkScrollType scroll,

                             gdouble       new_value);

  /* Padding for future expansion */

  void (*_gtk_reserved1) (void);

  void (*_gtk_reserved2) (void);

  void (*_gtk_reserved3) (void);

};

GType              gtk_range_get_type                      (void) G_GNUC_CONST;

#ifndef GTK_DISABLE_DEPRECATED

void               gtk_range_set_update_policy             (GtkRange      *range,

                                                            GtkUpdateType  policy);

GtkUpdateType      gtk_range_get_update_policy             (GtkRange      *range);

#endif /* GTK_DISABLE_DEPRECATED */

void               gtk_range_set_adjustment                (GtkRange      *range,

                                                            GtkAdjustment *adjustment);

GtkAdjustment*     gtk_range_get_adjustment                (GtkRange      *range);

void               gtk_range_set_inverted                  (GtkRange      *range,

                                                            gboolean       setting);

gboolean           gtk_range_get_inverted                  (GtkRange      *range);

void               gtk_range_set_flippable                 (GtkRange      *range,

                                                            gboolean       flippable);

gboolean           gtk_range_get_flippable                 (GtkRange      *range);

void               gtk_range_set_slider_size_fixed         (GtkRange      *range,

                                                            gboolean       size_fixed);

gboolean           gtk_range_get_slider_size_fixed         (GtkRange      *range);

void               gtk_range_set_min_slider_size           (GtkRange      *range,

                                                            gboolean       min_size);

gint               gtk_range_get_min_slider_size           (GtkRange      *range);

void               gtk_range_get_range_rect                (GtkRange      *range,

                                                            GdkRectangle  *range_rect);

void               gtk_range_get_slider_range              (GtkRange      *range,

                                                            gint          *slider_start,

                                                            gint          *slider_end);

void               gtk_range_set_lower_stepper_sensitivity (GtkRange      *range,

                                                            GtkSensitivityType sensitivity);

GtkSensitivityType gtk_range_get_lower_stepper_sensitivity (GtkRange      *range);

void               gtk_range_set_upper_stepper_sensitivity (GtkRange      *range,

                                                            GtkSensitivityType sensitivity);

GtkSensitivityType gtk_range_get_upper_stepper_sensitivity (GtkRange      *range);

void               gtk_range_set_increments                (GtkRange      *range,

                                                            gdouble        step,

                                                            gdouble        page);

void               gtk_range_set_range                     (GtkRange      *range,

                                                            gdouble        min,

                                                            gdouble        max);

void               gtk_range_set_value                     (GtkRange      *range,

                                                            gdouble        value);

gdouble            gtk_range_get_value                     (GtkRange      *range);

void               gtk_range_set_show_fill_level           (GtkRange      *range,

                                                            gboolean       show_fill_level);

gboolean           gtk_range_get_show_fill_level           (GtkRange      *range);

void               gtk_range_set_restrict_to_fill_level    (GtkRange      *range,

                                                            gboolean       restrict_to_fill_level);

gboolean           gtk_range_get_restrict_to_fill_level    (GtkRange      *range);

void               gtk_range_set_fill_level                (GtkRange      *range,

                                                            gdouble        fill_level);

gdouble            gtk_range_get_fill_level                (GtkRange      *range);

void               gtk_range_set_round_digits              (GtkRange      *range,

                                                            gint           round_digits);

gint                gtk_range_get_round_digits             (GtkRange      *range);

/* internal API */

gdouble            _gtk_range_get_wheel_delta              (GtkRange      *range,

                                                            GdkScrollDirection direction);

void               _gtk_range_set_stop_values              (GtkRange      *range,

                                                            gdouble       *values,

                                                            gint           n_values);

gint               _gtk_range_get_stop_positions           (GtkRange      *range,

                                                            gint         **values);          

G_END_DECLS

#endif /* __GTK_RANGE_H__ */