/** * The handleAction method is the heard of the MidiActionManager class. * It executes the operations that are needed to carry the desired action. */ bool MidiActionManager::handleAction( MidiAction * pAction ){ Hydrogen *pEngine = Hydrogen::get_instance(); /* return false if action is null (for example if no Action exists for an event) */ if( pAction == NULL ) return false; QString sActionString = pAction->getType(); if( sActionString == "PLAY" ) { int nState = pEngine->getState(); if ( nState == STATE_READY ){ pEngine->sequencer_play(); } return true; } if( sActionString == "PLAY/STOP_TOGGLE" || sActionString == "PLAY/PAUSE_TOGGLE" ) { int nState = pEngine->getState(); switch ( nState ) { case STATE_READY: pEngine->sequencer_play(); break; case STATE_PLAYING: if( sActionString == "PLAY/STOP_TOGGLE" ) pEngine->setPatternPos( 0 ); pEngine->sequencer_stop(); pEngine->setTimelineBpm(); break; default: ERRORLOG( "[Hydrogen::ActionManager(PLAY): Unhandled case" ); } return true; } if( sActionString == "PAUSE" ) { pEngine->sequencer_stop(); return true; } if( sActionString == "STOP" ) { pEngine->sequencer_stop(); pEngine->setPatternPos( 0 ); pEngine->setTimelineBpm(); return true; } if( sActionString == "MUTE" ){ //mutes the master, not a single strip pEngine->getSong()->__is_muted = true; return true; } if( sActionString == "UNMUTE" ){ pEngine->getSong()->__is_muted = false; return true; } if( sActionString == "MUTE_TOGGLE" ){ pEngine->getSong()->__is_muted = !Hydrogen::get_instance()->getSong()->__is_muted; return true; } if( sActionString == "BEATCOUNTER" ){ pEngine->handleBeatCounter(); return true; } if( sActionString == "TAP_TEMPO" ){ pEngine->onTapTempoAccelEvent(); return true; } if( sActionString == "SELECT_NEXT_PATTERN" ){ bool ok; int row = pAction->getParameter1().toInt(&ok,10); if( row> pEngine->getSong()->get_pattern_list()->size() -1 ) return false; if(Preferences::get_instance()->patternModePlaysSelected()) pEngine->setSelectedPatternNumber( row ); else pEngine->sequencer_setNextPattern( row, false, true ); return true; } if( sActionString == "SELECT_NEXT_PATTERN_RELATIVE" ){ bool ok; if(!Preferences::get_instance()->patternModePlaysSelected()) { return true; } int row = pEngine->getSelectedPatternNumber() + pAction->getParameter1().toInt(&ok,10); if( row> pEngine->getSong()->get_pattern_list()->size() -1 ) { return false; } pEngine->setSelectedPatternNumber( row ); return true; } if( sActionString == "SELECT_PREV_PATTERN_RELATIVE" ){ bool ok; if(!Preferences::get_instance()->patternModePlaysSelected()) return true; int row = pEngine->getSelectedPatternNumber() - pAction->getParameter1().toInt(&ok,10); if( row < 0 ) return false; pEngine->setSelectedPatternNumber( row ); return true; } if( sActionString == "SELECT_NEXT_PATTERN_CC_ABSOLUT" ){ bool ok; int row = pAction->getParameter2().toInt(&ok,10); if( row> pEngine->getSong()->get_pattern_list()->size() -1 ) return false; if(Preferences::get_instance()->patternModePlaysSelected()) pEngine->setSelectedPatternNumber( row ); else return true;// only usefully in normal pattern mode return true; } if( sActionString == "SELECT_NEXT_PATTERN_PROMPTLY" ){// obsolete, use SELECT_NEXT_PATTERN_CC_ABSOLUT instead bool ok; int row = pAction->getParameter2().toInt(&ok,10); pEngine->setSelectedPatternNumberWithoutGuiEvent( row ); return true; } if( sActionString == "SELECT_AND_PLAY_PATTERN"){ bool ok; int row = pAction->getParameter1().toInt(&ok,10); pEngine->setSelectedPatternNumber( row ); pEngine->sequencer_setNextPattern( row, false, true ); int nState = pEngine->getState(); if ( nState == STATE_READY ){ pEngine->sequencer_play(); } return true; } if( sActionString == "SELECT_INSTRUMENT" ){ bool ok; int instrument_number = pAction->getParameter2().toInt(&ok,10) ; if ( pEngine->getSong()->get_instrument_list()->size() < instrument_number ) instrument_number = pEngine->getSong()->get_instrument_list()->size() -1; pEngine->setSelectedInstrumentNumber( instrument_number ); return true; } if( sActionString == "EFFECT1_LEVEL_ABSOLUTE" ){ bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int fx_param = pAction->getParameter2().toInt(&ok,10); setAbsoluteFXLevel( nLine, 0 , fx_param ); } if( sActionString == "EFFECT2_LEVEL_ABSOLUTE" ){ bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int fx_param = pAction->getParameter2().toInt(&ok,10); setAbsoluteFXLevel( nLine, 1 , fx_param ); } if( sActionString == "EFFECT3_LEVEL_ABSOLUTE" ){ bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int fx_param = pAction->getParameter2().toInt(&ok,10); setAbsoluteFXLevel( nLine, 2 , fx_param ); } if( sActionString == "EFFECT4_LEVEL_ABSOLUTE" ){ bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int fx_param = pAction->getParameter2().toInt(&ok,10); setAbsoluteFXLevel( nLine, 3 , fx_param ); } if( sActionString == "MASTER_VOLUME_RELATIVE" ){ //increments/decrements the volume of the whole song bool ok; int vol_param = pAction->getParameter2().toInt(&ok,10); Hydrogen *engine = Hydrogen::get_instance(); Song *song = engine->getSong(); if( vol_param != 0 ){ if ( vol_param == 1 && song->get_volume() < 1.5 ){ song->set_volume( song->get_volume() + 0.05 ); } else { if( song->get_volume() >= 0.0 ){ song->set_volume( song->get_volume() - 0.05 ); } } } else { song->set_volume( 0 ); } } if( sActionString == "MASTER_VOLUME_ABSOLUTE" ){ //sets the volume of a master output to a given level (percentage) bool ok; int vol_param = pAction->getParameter2().toInt(&ok,10); Hydrogen *engine = Hydrogen::get_instance(); Song *song = engine->getSong(); if( vol_param != 0 ){ song->set_volume( 1.5* ( (float) (vol_param / 127.0 ) )); } else { song->set_volume( 0 ); } } if( sActionString == "STRIP_VOLUME_RELATIVE" ){ //increments/decrements the volume of one mixer strip bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int vol_param = pAction->getParameter2().toInt(&ok,10); Hydrogen::get_instance()->setSelectedInstrumentNumber( nLine ); Hydrogen *engine = Hydrogen::get_instance(); Song *song = engine->getSong(); InstrumentList *instrList = song->get_instrument_list(); Instrument *instr = instrList->get( nLine ); if ( instr == NULL) return 0; if( vol_param != 0 ){ if ( vol_param == 1 && instr->get_volume() < 1.5 ){ instr->set_volume( instr->get_volume() + 0.1 ); } else { if( instr->get_volume() >= 0.0 ){ instr->set_volume( instr->get_volume() - 0.1 ); } } } else { instr->set_volume( 0 ); } Hydrogen::get_instance()->setSelectedInstrumentNumber(nLine); } if( sActionString == "STRIP_VOLUME_ABSOLUTE" ){ //sets the volume of a mixer strip to a given level (percentage) bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int vol_param = pAction->getParameter2().toInt(&ok,10); Hydrogen::get_instance()->setSelectedInstrumentNumber( nLine ); Hydrogen *engine = Hydrogen::get_instance(); Song *song = engine->getSong(); InstrumentList *instrList = song->get_instrument_list(); Instrument *instr = instrList->get( nLine ); if ( instr == NULL) return 0; if( vol_param != 0 ){ instr->set_volume( 1.5* ( (float) (vol_param / 127.0 ) )); } else { instr->set_volume( 0 ); } Hydrogen::get_instance()->setSelectedInstrumentNumber(nLine); } if( sActionString == "PAN_ABSOLUTE" ){ // sets the absolute panning of a given mixer channel bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int pan_param = pAction->getParameter2().toInt(&ok,10); float pan_L; float pan_R; Hydrogen *engine = Hydrogen::get_instance(); engine->setSelectedInstrumentNumber( nLine ); Song *song = engine->getSong(); InstrumentList *instrList = song->get_instrument_list(); Instrument *instr = instrList->get( nLine ); if( instr == NULL ) return false; pan_L = instr->get_pan_l(); pan_R = instr->get_pan_r(); // pan float fPanValue = 0.0; if (pan_R == 1.0) { fPanValue = 1.0 - (pan_L / 2.0); } else { fPanValue = pan_R / 2.0; } fPanValue = 1 * ( ((float) pan_param) / 127.0 ); if (fPanValue >= 0.5) { pan_L = (1.0 - fPanValue) * 2; pan_R = 1.0; } else { pan_L = 1.0; pan_R = fPanValue * 2; } instr->set_pan_l( pan_L ); instr->set_pan_r( pan_R ); Hydrogen::get_instance()->setSelectedInstrumentNumber(nLine); return true; } if( sActionString == "PAN_RELATIVE" ){ // changes the panning of a given mixer channel // this is useful if the panning is set by a rotary control knob bool ok; int nLine = pAction->getParameter1().toInt(&ok,10); int pan_param = pAction->getParameter2().toInt(&ok,10); float pan_L; float pan_R; Hydrogen *engine = Hydrogen::get_instance(); engine->setSelectedInstrumentNumber( nLine ); Song *song = engine->getSong(); InstrumentList *instrList = song->get_instrument_list(); Instrument *instr = instrList->get( nLine ); if( instr == NULL ) return false; pan_L = instr->get_pan_l(); pan_R = instr->get_pan_r(); // pan float fPanValue = 0.0; if (pan_R == 1.0) { fPanValue = 1.0 - (pan_L / 2.0); } else { fPanValue = pan_R / 2.0; } if( pan_param == 1 && fPanValue < 1 ){ fPanValue += 0.05; } if( pan_param != 1 && fPanValue > 0 ){ fPanValue -= 0.05; } if (fPanValue >= 0.5) { pan_L = (1.0 - fPanValue) * 2; pan_R = 1.0; } else { pan_L = 1.0; pan_R = fPanValue * 2; } instr->set_pan_l( pan_L ); instr->set_pan_r( pan_R ); Hydrogen::get_instance()->setSelectedInstrumentNumber(nLine); return true; } if( sActionString == "BPM_CC_RELATIVE" ){ /* * increments/decrements the BPM * this is useful if the bpm is set by a rotary control knob */ AudioEngine::get_instance()->lock( RIGHT_HERE ); int mult = 1; //second parameter of cc command //this value should be 1 to decrement and something other then 1 to increment the bpm int cc_param = 1; //this Action should be triggered only by CC commands bool ok; mult = pAction->getParameter1().toInt(&ok,10); cc_param = pAction->getParameter2().toInt(&ok,10); if( lastBpmChangeCCParameter == -1) { lastBpmChangeCCParameter = cc_param; } Song* pSong = pEngine->getSong(); if ( lastBpmChangeCCParameter >= cc_param && pSong->__bpm < 300) { pEngine->setBPM( pSong->__bpm - 1*mult ); } if ( lastBpmChangeCCParameter < cc_param && pSong->__bpm > 40 ) { pEngine->setBPM( pSong->__bpm + 1*mult ); } lastBpmChangeCCParameter = cc_param; AudioEngine::get_instance()->unlock(); return true; } if( sActionString == "BPM_FINE_CC_RELATIVE" ){ /* * increments/decrements the BPM * this is useful if the bpm is set by a rotary control knob */ AudioEngine::get_instance()->lock( RIGHT_HERE ); int mult = 1; //second parameter of cc command //this value should be 1 to decrement and something other then 1 to increment the bpm int cc_param = 1; //this Action should be triggered only by CC commands bool ok; mult = pAction->getParameter1().toInt(&ok,10); cc_param = pAction->getParameter2().toInt(&ok,10); if( lastBpmChangeCCParameter == -1) { lastBpmChangeCCParameter = cc_param; } Song* pSong = pEngine->getSong(); if ( lastBpmChangeCCParameter >= cc_param && pSong->__bpm < 300) { pEngine->setBPM( pSong->__bpm - 0.01*mult ); } if ( lastBpmChangeCCParameter < cc_param && pSong->__bpm > 40 ) { pEngine->setBPM( pSong->__bpm + 0.01*mult ); } lastBpmChangeCCParameter = cc_param; AudioEngine::get_instance()->unlock(); return true; } if( sActionString == "BPM_INCR" ){ AudioEngine::get_instance()->lock( RIGHT_HERE ); int mult = 1; bool ok; mult = pAction->getParameter1().toInt(&ok,10); Song* pSong = pEngine->getSong(); if (pSong->__bpm < 300) { pEngine->setBPM( pSong->__bpm + 1*mult ); } AudioEngine::get_instance()->unlock(); return true; } if( sActionString == "BPM_DECR" ){ AudioEngine::get_instance()->lock( RIGHT_HERE ); int mult = 1; bool ok; mult = pAction->getParameter1().toInt(&ok,10); Song* pSong = pEngine->getSong(); if (pSong->__bpm > 40 ) { pEngine->setBPM( pSong->__bpm - 1*mult ); } AudioEngine::get_instance()->unlock(); return true; } if( sActionString == ">>_NEXT_BAR"){ pEngine->setPatternPos(pEngine->getPatternPos() +1 ); pEngine->setTimelineBpm(); return true; } if( sActionString == "<<_PREVIOUS_BAR"){ pEngine->setPatternPos(pEngine->getPatternPos() -1 ); pEngine->setTimelineBpm(); return true; } if( sActionString == "PLAYLIST_SONG"){ bool ok; int songnumber = pAction->getParameter2().toInt(&ok,10); return setSong( songnumber ); } if( sActionString == "PLAYLIST_NEXT_SONG"){ int songnumber = Playlist::get_instance()->getActiveSongNumber(); return setSong( ++songnumber ); } if( sActionString == "PLAYLIST_PREV_SONG"){ int songnumber = Playlist::get_instance()->getActiveSongNumber(); return setSong( --songnumber ); } if( sActionString == "RECORD_READY"){ if ( pEngine->getState() != STATE_PLAYING ) { if (!Preferences::get_instance()->getRecordEvents()) { Preferences::get_instance()->setRecordEvents(true); } else { Preferences::get_instance()->setRecordEvents(false); } } return true; } if( sActionString == "RECORD/STROBE_TOGGLE"){ if (!Preferences::get_instance()->getRecordEvents()) { Preferences::get_instance()->setRecordEvents(true); } else { Preferences::get_instance()->setRecordEvents(false); } return true; } if( sActionString == "RECORD_STROBE"){ if (!Preferences::get_instance()->getRecordEvents()) { Preferences::get_instance()->setRecordEvents(true); } return true; } if( sActionString == "RECORD_EXIT"){ if (Preferences::get_instance()->getRecordEvents()) { Preferences::get_instance()->setRecordEvents(false); } return true; } if( sActionString == "TOGGLE_METRONOME"){ Preferences::get_instance()->m_bUseMetronome = !Preferences::get_instance()->m_bUseMetronome; return true; } if( sActionString == "UNDO_ACTION"){ EventQueue::get_instance()->push_event( EVENT_UNDO_REDO, 0);// 0 = undo return true; } if( sActionString == "REDO_ACTION"){ EventQueue::get_instance()->push_event( EVENT_UNDO_REDO, 1);// 1 = redo return true; } return false; }