f@0: /*  
f@0:  Cross-Modal DAW Prototype - Prototype of a simple Cross-Modal Digital Audio Workstation.
f@0: 
f@0:  Copyright (C) 2015  Queen Mary University of London (http://depic.eecs.qmul.ac.uk/)
f@0: 	
f@0:  This program is free software: you can redistribute it and/or modify
f@0:  it under the terms of the GNU General Public License as published by
f@0:  the Free Software Foundation, either version 3 of the License, or
f@0:  (at your option) any later version.
f@0: 
f@0:  This program is distributed in the hope that it will be useful,
f@0:  but WITHOUT ANY WARRANTY; without even the implied warranty of
f@0:  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
f@0:  GNU General Public License for more details.
f@0: 
f@0:  You should have received a copy of the GNU General Public License
f@0:  along with this program.  If not, see <http://www.gnu.org/licenses/>.
f@0: */
f@0: package uk.ac.qmul.eecs.depic.daw.beads;
f@0: 
f@1: 
f@0: import uk.ac.qmul.eecs.depic.daw.Parameter;
f@0: import uk.ac.qmul.eecs.depic.daw.Parameter.Type;
f@1: import uk.ac.qmul.eecs.depic.daw.Sample;
f@0: import uk.ac.qmul.eecs.depic.daw.Sonification;
f@0: import uk.ac.qmul.eecs.depic.daw.SoundEngineFactory;
f@0: import uk.ac.qmul.eecs.depic.daw.SoundWave;
f@0: import uk.ac.qmul.eecs.depic.daw.beads.sonification.BeadsSonification;
f@0: 
f@2: /**
f@2:  * 
f@2:  * Beads implementation of the {@code SoundEngineFactory}. All the object returned are typed with 
f@2:  * classes of this package. Therefore all the classes use the same Beads library and enjoy package 
f@2:  * access with one another. 
f@2:  * 
f@2:  * Also they can be safely downcasted in order to get full functionality. For example  
f@2:  * in {@code createParameter} the argument of type {@code SoundWave} is downcasted 
f@2:  * to {@code BeadsSoundWave}. This is guaranteed to be safe because the way SoundWave objects 
f@2:  * are created is through the {@code createSoundWave} method, which returns a BeadsSoundWave. 
f@2:  * 
f@2:  * This is in the spirit of the Facade design pattern. So a unique point of access to the package object
f@2:  * guarantees all the objects come from that package, despite implementing interfaces which are defined 
f@2:  * outside. 
f@2:  *  
f@2:  *  
f@2:  *
f@2:  */
f@0: public class BeadsSoundEngineFactory implements SoundEngineFactory {
f@0: 	private static final int MAX_TRACK_SCALE_FACTOR = 10;
f@0: 	private static final int MIN_CHUNCKSIZE = 8;
f@0: 	private int minChunk;
f@0: 	private int maxScaleFactor;
f@0: 	private int initialScaleFactor;
f@0: 	private Sonification sonification;
f@0: 	
f@0: 	public BeadsSoundEngineFactory(){
f@0: 		minChunk = MIN_CHUNCKSIZE;
f@0: 		maxScaleFactor = MAX_TRACK_SCALE_FACTOR;
f@0: 		initialScaleFactor = MAX_TRACK_SCALE_FACTOR/2 + 1;
f@0: 		sonification = new BeadsSonification();
f@0: 	}
f@0: 	
f@0: 	@Override
f@0: 	public SoundWave createSoundWave() {
f@0: 		return new BeadsSoundWave(
f@0: 				minChunk,
f@0: 				maxScaleFactor,
f@0: 				initialScaleFactor);
f@0: 	}
f@0: 	
f@0: 	public BeadsSoundEngineFactory setSoundWaveParameters(int minChunk,int maxScaleFactor, int initialScaleFactor){
f@0: 		this.minChunk = minChunk; 
f@0: 		this.maxScaleFactor = maxScaleFactor;
f@0: 		this.initialScaleFactor = initialScaleFactor;
f@0: 		return this;
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public Parameter createParameter(Type type, SoundWave wave) {	
f@0: 		if(Parameter.GAIN_TYPE.equals(type)) {
f@0: 			return new GainParameter(((BeadsSoundWave)wave).ac,2);
f@0: 		}else if(Parameter.PAN_TYPE.equals(type)) {  
f@0: 			return new PanParameter(((BeadsSoundWave)wave).ac);
f@0: 		}else{
f@0: 			return null;
f@0: 		}
f@0: 	}
f@0: 
f@0: 	@Override
f@0: 	public Sonification getSharedSonification() {
f@0: 		return sonification;
f@0: 	}
f@1: 	
f@1: 	@Override
f@1: 	public Sample createSample(String fileAbsolutePath) throws Exception {
f@1: 		return new BeadsSampleWrapper(new net.beadsproject.beads.data.Sample(
f@1: 				fileAbsolutePath,
f@1: 				net.beadsproject.beads.data.Sample.Regime.newStreamingRegimeWithAging(1000, 1000)
f@1: 			)
f@1: 		);
f@1: 	}
f@0: 
f@0: }