/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef PEGASUS_GRAPHICS_H
#define PEGASUS_GRAPHICS_H

#include "common/rect.h"
#include "common/str.h"
#include "common/system.h"
#include "graphics/pict.h"
#include "graphics/surface.h"

#include "pegasus/pegasus.h"

namespace Pegasus {

enum {
	// The main cursors
	kMainCursor = 128,
	kZoomInCursor = 129,
	kZoomOutCursor = 130,
	kPointingCursor = 131,
	kInteractHand = 132,
	kGrabbingHand = 133,
	
	// Reticles when using the Mars shuttle
	kTargetingReticle1 = 900,
	kTargetingReticle2 = 901
}; 

enum {
	kImageCacheSize = 10
};

struct ImageCache {
	Common::String filename;
	Graphics::Surface *surface;
	uint32 lastUsed;
};

class PegasusEngine;

class GraphicsManager {
public:
	GraphicsManager(PegasusEngine *vm);
	~GraphicsManager();

	void drawPict(Common::String filename, int x, int y, bool updateScreen = true);
	void drawPictTransparent(Common::String filename, int x, int y, uint32 transparency, bool updateScreen = true);
	void setCursor(uint16 cursor);
	uint32 getColor(byte r, byte g, byte b);
	
private:		
	PegasusEngine *_vm;
	Graphics::PictDecoder *_pictDecoder;

	Graphics::Surface *decodeImage(const Common::String &filename);
	ImageCache _cache[kImageCacheSize];
	int getImageSlot(const Common::String &filename);
};

} // End of namespace Pegasus

#endif