1 /****************************************************************************
2 * VCGLib                                                            o o     *
3 * Visual and Computer Graphics Library                            o     o   *
4 *                                                                _   O  _   *
5 * Copyright(C) 2004-2016                                           \/)\/    *
6 * Visual Computing Lab                                            /\/|      *
7 * ISTI - Italian National Research Council                           |      *
8 *                                                                    \      *
9 * All rights reserved.                                                      *
10 *                                                                           *
11 * This program is free software; you can redistribute it and/or modify      *
12 * it under the terms of the GNU General Public License as published by      *
13 * the Free Software Foundation; either version 2 of the License, or         *
14 * (at your option) any later version.                                       *
15 *                                                                           *
16 * This program is distributed in the hope that it will be useful,           *
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of            *
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
19 * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
20 * for more details.                                                         *
21 *                                                                           *
22 ****************************************************************************/
23 /****************************************************************************
24   History
25 
26 $Log: not supported by cvs2svn $
27 Revision 1.1  2005/04/14 21:23:39  ganovelli
28 *** empty log message ***
29 
30 
31 
32 ****************************************************************************/
33 #ifndef VCGLIB_TRACKRECORDER
34 #define VCGLIB_TRACKRECORDER
35 
36 
37 #include <wrap/gui/trackball.h>
38 #include <stdio.h>
39 #include <time.h>
40 
41 namespace vcg{
42 struct TrackRecorder{
43 
TrackRecorderTrackRecorder44 	TrackRecorder(){Stop();}
45 
46 	FILE * trackfile;
47 
48 	enum { PLAY,REC,OFF } mode;
49 	int nextTime,
50 			startTime;
51 
StartPlayingTrackRecorder52 	void StartPlaying(char * namefile){
53 		if(trackfile != NULL) return;
54 
55 		trackfile = fopen(namefile,"rb");
56 		startTime = clock();
57 		mode = PLAY;
58 		fread(&nextTime,4,1,trackfile);
59 	}
60 
UpdateTrackballTrackRecorder61 	void UpdateTrackball(Trackball & t){
62 
63 		while( ( clock()-startTime > nextTime)&& !feof(trackfile)){
64 				fread(&t.track,sizeof(float)*4 + sizeof(float)*5,1,trackfile);
65 				fread(&nextTime,4,1,trackfile);
66 		}
67 		if(feof(trackfile))
68 			Stop();
69 	}
70 
StartRecordingTrackRecorder71 	void  StartRecording(char * namefile){
72 		if(trackfile != NULL) return;
73 		trackfile = fopen(namefile,"wb");
74 		startTime = clock();
75 		mode = REC;
76 	}
77 
RecordTrackballTrackRecorder78 	void  RecordTrackball(Trackball & t){
79 		nextTime = clock()-startTime;
80 		fwrite(&nextTime,4,1,trackfile);
81 		fwrite(&t.track,sizeof(float)*4 + sizeof(float)*5,1,trackfile);
82 	}
83 
StopTrackRecorder84 	void  Stop(){mode = OFF; trackfile = NULL;};
85 
86 };
87 }
88 #endif