59 lines
2.5 KiB
C
59 lines
2.5 KiB
C
/***************************************************************************
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gui_scrollbar.h - description
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-------------------
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begin : Wed Oct 16 2002
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copyright : (C) 2002 by Michael Speck
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email : kulkanie@gmx.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef __GUI_SCROLLBAR_H
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#define __GUI_SCROLLBAR_H
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/*
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====================================================================
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Create an either vertical or horizontal scrollbar. The increase/
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decrease/track buttons are square.
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====================================================================
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*/
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GuiWidget* gui_scrollbar_create(
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GuiWidget *parent, int x, int y, int width, int height,
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void (*user_event_handler)(GuiWidget*,GuiEvent*),
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int vertical, int min, int max, int step, int jump, int value );
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/*
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====================================================================
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Set or get scrollbar value. Get returns False if this was no
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scrollbar.
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====================================================================
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*/
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void gui_scrollbar_set_value( GuiWidget *scrollbar, int value );
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int gui_scrollbar_get_value( GuiWidget *scrollbar, int *value );
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/*
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====================================================================
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Set the range of the scrollbar. Stores refresh rects if visible.
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-1 for any value means to keep the current setting.
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====================================================================
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*/
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int gui_scrollbar_set_range(
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GuiWidget *scrollbar, int min, int max, int step, int jump );
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/*
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====================================================================
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Modify value of scrollbar by the passed amount and update,
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return True if it has changed and call event handler with
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GUI_CHANGED.
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====================================================================
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*/
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int gui_scrollbar_add( GuiWidget *widget, int change );
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#endif
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