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1 #include "Config.h"
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2
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3
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4 #include "cinder/Exception.h"
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5 #include "boost/algorithm/string/trim.hpp"
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6
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7 using ci::DataSourceRef;
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8 using ci::XmlTree;
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9 using ci::loadFile;
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10
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11
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12 Config::Config() :
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13 mAudioInputDeviceKey( "" ),
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14 mNumChunks(150),
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15 mWaveLen(2.0)
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16 {
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17
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18 }
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19
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20
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21 void Config::loadFromFile( std::string&& path )
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22 {
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23 try {
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24 XmlTree doc( loadFile( path ) );
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25
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26 XmlTree collidoscope = doc.getChild( "collidoscope" );
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27
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28 // audio input device
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29 mAudioInputDeviceKey = collidoscope.getChild( "audioInputDeviceKey" ).getValue();
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30 boost::trim( mAudioInputDeviceKey );
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31
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32 // wave len in seconds
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33 std::string waveLenStr = collidoscope.getChild("wave_len").getValue();
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34 boost::trim(waveLenStr);
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35 mWaveLen = ci::fromString<double>(waveLenStr);
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36
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37 // channel for each wave
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38 XmlTree waves = collidoscope.getChild( "waves" );
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39
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40 for ( int i = 0; i < NUM_WAVES; i++ ){
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41 for ( auto &wave : waves.getChildren() ){
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42 int id = ci::fromString<int>( wave->getAttribute( "id" ) );
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43 if ( id == i ){
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44 parseWave( *wave, id );
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45 break;
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46 }
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47 }
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48 }
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49
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50 }
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51 catch ( std::exception &e ) {
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52 throw ci::Exception( e.what() );
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53 }
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54
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55
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56
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57 }
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58
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59 // thows exception captured in loadFromFile
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60 void Config::parseWave( const XmlTree &wave, int id )
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61 {
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62 // midi channel
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63 std::string midiChannelStr = wave.getChild( "midiChannel" ).getValue();
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64 boost::trim( midiChannelStr );
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65
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66 mMidiChannels[id] = ci::fromString<size_t>( midiChannelStr );
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67
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68 }
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