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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.
*/
/*
* 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 (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#ifndef __GTK_ADJUSTMENT_H__
#define __GTK_ADJUSTMENT_H__
#include <gdk/gdk.h>
G_BEGIN_DECLS
#define GTK_TYPE_ADJUSTMENT (gtk_adjustment_get_type ())
#define GTK_ADJUSTMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustment))
#define GTK_ADJUSTMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
#define GTK_IS_ADJUSTMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_ADJUSTMENT))
#define GTK_IS_ADJUSTMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_ADJUSTMENT))
#define GTK_ADJUSTMENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_ADJUSTMENT, GtkAdjustmentClass))
typedef struct _GtkAdjustment GtkAdjustment;
typedef struct _GtkAdjustmentClass GtkAdjustmentClass;
/**
* GtkAdjustment:
* @lower: the minimum value.
* @upper: the maximum value.
* @value: the current value.
* @step_increment: the increment to use to make minor changes to the @value.
* In a #GtkScrollbar this increment is used when the mouse is clicked on the
* arrows at the top and bottom of the scrollbar, to scroll by a small amount.
* @page_increment: the increment to use to make major changes to the @value.
* In a #GtkScrollbar this increment is used when the mouse is clicked in the
* trough, to scroll by a large amount.
* @page_size: In a #GtkScrollbar this is the size of the area which is currently
* visible.
*
* The #GtkAdjustment struct contains the following fields.
*/
struct _GtkAdjustment
{
GInitiallyUnowned parent_instance;
gdouble GSEAL (lower);
gdouble GSEAL (upper);
gdouble GSEAL (value);
gdouble GSEAL (step_increment);
gdouble GSEAL (page_increment);
gdouble GSEAL (page_size);
};
struct _GtkAdjustmentClass
{
GInitiallyUnownedClass parent_class;
void (* changed) (GtkAdjustment *adjustment);
void (* value_changed) (GtkAdjustment *adjustment);
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
};
GType gtk_adjustment_get_type (void) G_GNUC_CONST;
GtkAdjustment* gtk_adjustment_new (gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size);
void gtk_adjustment_changed (GtkAdjustment *adjustment);
void gtk_adjustment_value_changed (GtkAdjustment *adjustment);
void gtk_adjustment_clamp_page (GtkAdjustment *adjustment,
gdouble lower,
gdouble upper);
gdouble gtk_adjustment_get_value (GtkAdjustment *adjustment);
void gtk_adjustment_set_value (GtkAdjustment *adjustment,
gdouble value);
gdouble gtk_adjustment_get_lower (GtkAdjustment *adjustment);
void gtk_adjustment_set_lower (GtkAdjustment *adjustment,
gdouble lower);
gdouble gtk_adjustment_get_upper (GtkAdjustment *adjustment);
void gtk_adjustment_set_upper (GtkAdjustment *adjustment,
gdouble upper);
gdouble gtk_adjustment_get_step_increment (GtkAdjustment *adjustment);
void gtk_adjustment_set_step_increment (GtkAdjustment *adjustment,
gdouble step_increment);
gdouble gtk_adjustment_get_page_increment (GtkAdjustment *adjustment);
void gtk_adjustment_set_page_increment (GtkAdjustment *adjustment,
gdouble page_increment);
gdouble gtk_adjustment_get_page_size (GtkAdjustment *adjustment);
void gtk_adjustment_set_page_size (GtkAdjustment *adjustment,
gdouble page_size);
void gtk_adjustment_configure (GtkAdjustment *adjustment,
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size);
G_END_DECLS
#endif /* __GTK_ADJUSTMENT_H__ */
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