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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Author :
* Damon Chaplin <damon@helixcode.com>
*
* Copyright 1999, Helix Code, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#ifndef _E_VSCROLLED_BAR_H_
#define _E_VSCROLLED_BAR_H_
#include <gtk/gtkbin.h>
#include <gtk/gtkadjustment.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/*
* EVScrolledBar is like GtkScrolledWindow but only scrolls the child widget
* vertically. It is intended for scrolling narrow vertical bars.
*/
#define E_VSCROLLED_BAR(obj) GTK_CHECK_CAST (obj, e_vscrolled_bar_get_type (), EVScrolledBar)
#define E_VSCROLLED_BAR_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, e_vscrolled_bar_get_type (), EVScrolledBarClass)
#define E_IS_VSCROLLED_BAR(obj) GTK_CHECK_TYPE (obj, e_vscrolled_bar_get_type ())
typedef struct _EVScrolledBar EVScrolledBar;
typedef struct _EVScrolledBarClass EVScrolledBarClass;
struct _EVScrolledBar
{
GtkBin bin;
GtkWidget *up_button;
GtkWidget *down_button;
GtkAdjustment *adjustment;
gint up_button_width;
gint up_button_height;
gint down_button_width;
gint down_button_height;
/* The GTK+ event source ID of our timeout handler. */
gint timeout_id;
/* TRUE if we are scrolling up, FALSE if scrolling down. */
gboolean scrolling_up;
/* The minimum distance left to scroll. If the user just clicks a
button we scroll a minimum amount. This is reduced after each
scroll. */
gfloat min_distance;
/* TRUE if the button is still pressed. When the up/down button is
released, this gets set to FALSE, and we scroll until the minimum
distance falls below 0. */
gboolean button_pressed;
};
struct _EVScrolledBarClass
{
GtkBinClass parent_class;
};
GtkType e_vscrolled_bar_get_type (void);
GtkWidget* e_vscrolled_bar_new (GtkAdjustment *adjustment);
GtkAdjustment* e_vscrolled_bar_get_adjustment (EVScrolledBar *vscrolled_bar);
void e_vscrolled_bar_set_adjustment (EVScrolledBar *vscrolled_bar,
GtkAdjustment *adjustment);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _E_VSCROLLED_BAR_H_ */
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