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1 /*
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2
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3 Copyright (C) 2016 Queen Mary University of London
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4 Author: Fiore Martin
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5
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6 This file is part of Collidoscope.
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7
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8 Collidoscope is free software: you can redistribute it and/or modify
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation, either version 3 of the License, or
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11 (at your option) any later version.
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12
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13 This program is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #include "Config.h"
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23
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24
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25 #include "cinder/Exception.h"
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26 #include "boost/algorithm/string/trim.hpp"
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27
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28 using ci::DataSourceRef;
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29 using ci::XmlTree;
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30 using ci::loadFile;
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31
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32
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33 Config::Config() :
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34 mAudioInputDeviceKey( "" ),
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35 mNumChunks(150),
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36 mWaveLen(2.0)
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37 {
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38
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39 }
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40
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41 // uses Cinder api to parse configuration in XML file
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42 void Config::loadFromFile( std::string&& path )
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43 {
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44 try {
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45 XmlTree doc( loadFile( path ) );
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46
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47 XmlTree collidoscope = doc.getChild( "collidoscope" );
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48
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49 // audio input device
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50 mAudioInputDeviceKey = collidoscope.getChild( "audioInputDeviceKey" ).getValue();
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51 boost::trim( mAudioInputDeviceKey );
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52
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53 // wave len in seconds
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54 std::string waveLenStr = collidoscope.getChild("wave_len").getValue();
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55 boost::trim(waveLenStr);
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56 mWaveLen = ci::fromString<double>(waveLenStr);
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57
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58 // channel for each wave
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59 XmlTree waves = collidoscope.getChild( "waves" );
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60
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61 for ( int i = 0; i < NUM_WAVES; i++ ){
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62 for ( auto &wave : waves.getChildren() ){
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63 int id = ci::fromString<int>( wave->getAttribute( "id" ) );
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64 if ( id == i ){
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65 parseWave( *wave, id );
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66 break;
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67 }
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68 }
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69 }
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70
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71 }
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72 catch ( std::exception &e ) {
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73 throw ci::Exception( e.what() );
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74 }
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75
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76
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77
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78 }
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79
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80 // thows exception captured in loadFromFile
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81 void Config::parseWave( const XmlTree &wave, int id )
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82 {
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83 // midi channel
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84 std::string midiChannelStr = wave.getChild( "midiChannel" ).getValue();
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85 boost::trim( midiChannelStr );
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86
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87 mMidiChannels[id] = ci::fromString<size_t>( midiChannelStr );
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88
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89 }
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