/* $Id: replayer.hpp,v 1.12 2005/12/15 11:55:21 chfreund Exp $ */

#ifndef _REPLAYER_HPP_
#define _REPLAYER_HPP_

#include <fstream>
#include <SDL.h>
#include <SDL_thread.h>

#include "rootcontainer.h"
#include "action.h"
#include "textlabel.h"
#include "button.h"
using namespace SDLwidgets;

#include "video.hpp"
#include "audio.hpp"
#include "world.hpp"
#include "wopbackground.hpp"

class Replayer : public ActionListener {
	private:
		Video m_video;
		Audio* m_audio;
		World m_world;
		WopBackground* m_background;
		SDL_Surface* m_mapSurface;
		SDL_Rect m_mapRect;
		const Object* m_focusedObject;
		SDL_Thread    *m_displayThread;
		SDL_cond      *m_displayLoopCond;
		SDL_mutex     *m_displayLoopMutex;
		SDL_mutex *m_worldMutex;
		SDL_TimerID m_frameTimer;
		Uint32 m_frameDuration;
		Uint32 m_frameCounter;
		std::ifstream m_in;
		bool m_quitFlag;
		int m_screenshotNumber;
		static const int m_N_MOVIE_FRAMES =  200,
		                 m_N_SKIP_FRAMES  = 1000,
		                 m_BOOKMARK_REWIND = 200;
		std::vector<Uint32> m_bookmarks;
		Uint8* m_worldBuffer;
		ifstream::pos_type m_posBuffer;
		Uint32 m_frameCounterBuffer;
		
		RootContainer* m_rootContainer;
		TextLabel* m_frameCounterDisplay;
		TextLabel* m_playbackRateDisplay;
		Uint16 m_grabX, m_grabY;
		TextButton* m_playButton;
		TextButton* m_stopButton;
		TextButton* m_skipButton;
		TextButton* m_screenshotButton;
		
	public:
		Replayer( const char* filename );
		virtual ~Replayer();
		void run();
		void displayLoop();
		void handleEvent( SDL_Event* event );
		void nextFrame();
		void updateGraphics();
		virtual void actionPerformed( Uint32 cmd, void* source );
		Uint32 getFrameDuration() const { return m_frameDuration; }
		
	private:
		void createGUI();
		void signalDisplayThread() {
			if ( m_displayLoopCond )
				SDL_CondSignal( m_displayLoopCond );
		}
		void drawWorld( SDL_Surface* surface );
		void stopPlayback();
		void startPlayback();
		bool isPlaybackRunning() { return ( m_frameTimer != 0 ); }
		void skipFrames( Uint32 numberFrames );
		void saveScreenshot();
		void createMovie();
		void scanForBookmarks();
		void gotoNextBookmark();
		void rewind();
		
	friend Uint32 replayFrameTimerCallback( Uint32 interval, void* data );
	friend int replayDisplayLoopWrapper( void* data );
};

Uint32 replayFrameTimerCallback( Uint32 interval, void* data );
int replayDisplayLoopWrapper( void* data );

#endif // _REPLAYER_HPP_