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/***************************************************************************
gui_scrollbar.h - description
-------------------
begin : Wed Oct 16 2002
copyright : (C) 2002 by Michael Speck
email : kulkanie@gmx.net
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef __GUI_SCROLLBAR_H
#define __GUI_SCROLLBAR_H
/*
====================================================================
Create an either vertical or horizontal scrollbar. The increase/
decrease/track buttons are square.
====================================================================
*/
GuiWidget* gui_scrollbar_create(
GuiWidget *parent, int x, int y, int width, int height,
void (*user_event_handler)(GuiWidget*,GuiEvent*),
int vertical, int min, int max, int step, int jump, int value );
/*
====================================================================
Set or get scrollbar value. Get returns False if this was no
scrollbar.
====================================================================
*/
void gui_scrollbar_set_value( GuiWidget *scrollbar, int value );
int gui_scrollbar_get_value( GuiWidget *scrollbar, int *value );
/*
====================================================================
Set the range of the scrollbar. Stores refresh rects if visible.
-1 for any value means to keep the current setting.
====================================================================
*/
int gui_scrollbar_set_range(
GuiWidget *scrollbar, int min, int max, int step, int jump );
/*
====================================================================
Modify value of scrollbar by the passed amount and update,
return True if it has changed and call event handler with
GUI_CHANGED.
====================================================================
*/
int gui_scrollbar_add( GuiWidget *widget, int change );
#endif
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