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wrap/gui/trackrecorder.h

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+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004                                                \/)\/    *
+* Visual Computing Lab                                            /\/|      *
+* ISTI - Italian National Research Council                           |      *
+*                                                                    \      *
+* All rights reserved.                                                      *
+*                                                                           *
+* 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 (http://www.gnu.org/licenses/gpl.txt)          *
+* for more details.                                                         *
+*                                                                           *
+****************************************************************************/
+/****************************************************************************
+  History
+
+$Log: not supported by cvs2svn $
+
+
+****************************************************************************/
+#ifndef VCGLIB_TRACKRECORDER
+#define VCGLIB_TRACKRECORDER
+
+
+#include <wrap/gui/trackball.h>
+#include <stdio.h>
+#include <time.h>
+
+namespace vcg{
+struct TrackRecorder{
+
+	TrackRecorder(){Stop();}
+	
+	FILE * trackfile;
+	
+	enum { PLAY,REC,OFF } mode;
+	int nextTime,   
+			startTime;  
+
+	StartPlaying(char * namefile){
+		if(trackfile != NULL) return;
+
+		trackfile = fopen(namefile,"rb");
+		startTime = clock();
+		mode = PLAY;
+		fread(&nextTime,4,1,trackfile);
+	} 
+
+	UpdateTrackball(Trackball & t){
+
+		while( ( clock()-startTime > nextTime)&& !feof(trackfile)){
+				fread(&t.track,sizeof(float)*4 + sizeof(float)*5,1,trackfile);
+				fread(&nextTime,4,1,trackfile);
+		}
+		if(feof(trackfile))
+			Stop();
+	}
+
+	StartRecording(char * namefile){
+		if(trackfile != NULL) return;
+		trackfile = fopen(namefile,"wb");	
+		startTime = clock();
+		mode = REC;
+	} 
+
+	RecordTrackball(Trackball & t){
+		nextTime = clock()-startTime;
+		fwrite(&nextTime,4,1,trackfile);
+		fwrite(&t.track,sizeof(float)*4 + sizeof(float)*5,1,trackfile);
+	}
+
+	Stop(){mode = OFF; trackfile = NULL;};
+
+};
+}
+#endif