package org.herac.tuxguitar.player.base; public class MidiSynthesizerProxy implements MidiSynthesizer{ private MidiSynthesizer midiSynthesizer; public MidiSynthesizerProxy(){ super(); } @Override public MidiChannel openChannel(int channelId) throws MidiPlayerException{ if( this.midiSynthesizer != null ){ return this.midiSynthesizer.openChannel(channelId); } return null; } @Override public void closeChannel(MidiChannel midiChannel) throws MidiPlayerException{ if( this.midiSynthesizer != null ){ this.midiSynthesizer.closeChannel(midiChannel); } } @Override public boolean isChannelOpen(MidiChannel midiChannel) throws MidiPlayerException{ if( this.midiSynthesizer != null ){ return this.midiSynthesizer.isChannelOpen(midiChannel); } return false; } public MidiSynthesizer getMidiSynthesizer() { return this.midiSynthesizer; } public void setMidiSynthesizer(MidiSynthesizer midiSynthesizer) { this.midiSynthesizer = midiSynthesizer; } }