/*
	This file is part of Warzone 2100.
	Copyright (C) 1999-2004  Eidos Interactive
	Copyright (C) 2005-2011  Warzone 2100 Project

	Warzone 2100 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.

	Warzone 2100 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 Warzone 2100; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/** @file
 *  Slider bar interface definitions.
 */

#ifndef __INCLUDED_LIB_WIDGET_SLIDER_H__
#define __INCLUDED_LIB_WIDGET_SLIDER_H__

#include "widget.h"
#include "widgbase.h"

/* Slider state */
#define SLD_DRAG		0x0001		// Slider is being dragged
#define SLD_HILITE		0x0002		// Slider is hilited

/* Respond to a mouse click */
void sliderClicked(struct W_SLIDER *psWidget, W_CONTEXT *psContext);

struct W_SLIDER : public WIDGET
{
	W_SLIDER(W_SLDINIT const *init);

	void clicked(W_CONTEXT *context, WIDGET_KEY) { sliderClicked(this, context); }

	WSLD_ORIENTATION orientation;                   // The orientation of the slider
	UWORD		numStops;			// Number of stop positions on the slider
	UWORD		barSize;			// Thickness of slider bar
	UWORD		pos;				// Current stop position of the slider
	UWORD		state;				// Slider state
	const char	*pTip;				// Tool tip
};

/* Create a slider widget data structure */
extern W_SLIDER* sliderCreate(const W_SLDINIT* psInit);

/* Free the memory used by a slider */
extern void sliderFree(W_SLIDER *psWidget);

/* Initialise a slider widget before running it */
extern void sliderInitialise(W_SLIDER *psWidget);

/* Run a slider widget */
extern void sliderRun(W_SLIDER *psWidget, W_CONTEXT *psContext);

/* Respond to a mouse up */
extern void sliderReleased(W_SLIDER *psWidget);

/* Respond to a mouse moving over a slider */
extern void sliderHiLite(W_SLIDER *psWidget);

/* Respond to the mouse moving off a slider */
extern void sliderHiLiteLost(W_SLIDER *psWidget);

/* The slider display function */
extern void sliderDisplay(WIDGET *psWidget, UDWORD xOffset, UDWORD yOffset, PIELIGHT *pColours);

#endif // __INCLUDED_LIB_WIDGET_SLIDER_H__