view src/uk/ac/qmul/eecs/depic/daw/gui/AudioTrackSonification.java @ 4:473da40f3d39 tip

added html formatting to Daw/package-info.java

/*  
 Cross-Modal DAW Prototype - Prototype of a simple Cross-Modal Digital Audio Workstation.

 Copyright (C) 2015  Queen Mary University of London (http://depic.eecs.qmul.ac.uk/)
	
 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 3 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 for more details.

 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package uk.ac.qmul.eecs.depic.daw.gui;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import uk.ac.qmul.eecs.depic.daw.Daw;
import uk.ac.qmul.eecs.depic.daw.Selection;
import uk.ac.qmul.eecs.depic.daw.Sonification;
import uk.ac.qmul.eecs.depic.daw.SoundType;
import uk.ac.qmul.eecs.depic.daw.SoundWave;

/**
 * Plays sonification sounds of the audio track through the member variable of 
 * type {@code Sonification} that is initialized with {@code Daw.getSoundEngineFactory().getSharedSonification()}
 * 
 * Listen to property changes of AudioTrack objects ("cursorPos" and "mouseDragSelection" properties) 
 * and to changes of sequence graphs (automation graphs) objects.
 *
 */
class AudioTrackSonification implements PropertyChangeListener, ChangeListener {
	private Sonification sonification = Daw.getSoundEngineFactory().getSharedSonification();
	private AudioTrack track;
	
	AudioTrackSonification(AudioTrack track){
		this.track  =  track;
	}
	
	@Override
	public void propertyChange(PropertyChangeEvent evt) {
		if("cursorPos".equals(evt.getPropertyName())){
			AudioTrack track = (AudioTrack)evt.getSource();
			SoundWave soundWave = track.getSoundWave();
			int newPos = (Integer)evt.getNewValue();
			
			if(soundWave.hasSequence()){ 
				/* check if the cursor stumbled upon or left an automation point */
				for(SequencePoint p : track.getAutomationGraph().getSequencePoints()){
					if(p.isXCentredAt(newPos)){
						sonification.getSequenceMapping(SoundType.AUTOMATION).renderValue(p.getSequenceValue()); //FIXME remove comments
					}
				}
				
				if(track.showAutomationSound){
					sonification.getSequenceMapping(SoundType.AUTOMATION).renderCurveAt(
							soundWave.getSequence(),
							soundWave.getMillisecPerChunk() * newPos,
							Float.POSITIVE_INFINITY);
				}
			}

			if(soundWave.getDbWave().hasSequence()){
				/* check if the cursor stumbled upon or left an automation point */
//				for(SequencePoint p : track.getPeakLevelGraph().getSequencePoints()){
//					if(p.isXCentredAt(newPos)){
//						sonification.getSequenceMapping(GuiSoundType.PEAK_LEVEL).renderValue(p.getSequenceValue());
//					}
//				}
				
				if(track.showPeakLevelSound){
					sonification.getSequenceMapping(SoundType.PEAK_LEVEL).renderCurveAt(
							soundWave.getDbWave().getSequence(),
							soundWave.getMillisecPerChunk() * newPos,
							Float.POSITIVE_INFINITY);
				}
			}
			
			if(track.trackInteraction.getMouseSelection().isOpen()){
				return;
			}
			
			/* play selection sound if within selection, stop it if without */
			if(track.trackInteraction.getMouseSelection().contains(newPos)){
				sonification.withinSelection(1.0f, 0.0f);
			}else {
				sonification.outsideSelection();
			}
			
			if(track.trackInteraction.getMouseSelection().getStart() == newPos){
				sonification.play(SoundType.SHIFT_START);
			}else if(track.trackInteraction.getMouseSelection().getEnd() == newPos){
				sonification.play(SoundType.SHIFT_END);
			}
		}else if("mouseDragSelection".equals(evt.getPropertyName())){
			if( ((Selection)evt.getNewValue()).isOpen() ){
				sonification.outsideSelection();
			}
		}
	}

	@Override
	public void stateChanged(ChangeEvent evt) {
		if(track.showAutomationSound){
			SoundWave soundWave = track.getSoundWave();
			sonification.getSequenceMapping(SoundType.AUTOMATION).renderCurveAt(
					soundWave.getSequence(),
					soundWave.getMillisecPerChunk() * soundWave.getCurrentChunkPosition(),
					Float.POSITIVE_INFINITY);
		}
	}

}