1 /*
   2  * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package com.sun.media.sound;
  26 
  27 import java.util.Arrays;
  28 
  29 /**
  30  * A standard director who chooses performers
  31  * by there keyfrom,keyto,velfrom,velto properties.
  32  *
  33  * @author Karl Helgason
  34  */
  35 public final class ModelStandardDirector implements ModelDirector {
  36 
  37     private final ModelPerformer[] performers;
  38     private final ModelDirectedPlayer player;
  39     private boolean noteOnUsed = false;
  40     private boolean noteOffUsed = false;
  41 
  42     public ModelStandardDirector(final ModelPerformer[] performers,
  43                                  final ModelDirectedPlayer player) {
  44         this.performers = Arrays.copyOf(performers, performers.length);
  45         this.player = player;
  46         for (final ModelPerformer p : this.performers) {
  47             if (p.isReleaseTriggered()) {
  48                 noteOffUsed = true;
  49             } else {
  50                 noteOnUsed = true;
  51             }
  52         }
  53     }
  54 
  55     public void close() {
  56     }
  57 
  58     public void noteOff(int noteNumber, int velocity) {
  59         if (!noteOffUsed)
  60             return;
  61         for (int i = 0; i < performers.length; i++) {
  62             ModelPerformer p = performers[i];
  63             if (p.getKeyFrom() <= noteNumber && p.getKeyTo() >= noteNumber) {
  64                 if (p.getVelFrom() <= velocity && p.getVelTo() >= velocity) {
  65                     if (p.isReleaseTriggered()) {
  66                         player.play(i, null);
  67                     }
  68                 }
  69             }
  70         }
  71     }
  72 
  73     public void noteOn(int noteNumber, int velocity) {
  74         if (!noteOnUsed)
  75             return;
  76         for (int i = 0; i < performers.length; i++) {
  77             ModelPerformer p = performers[i];
  78             if (p.getKeyFrom() <= noteNumber && p.getKeyTo() >= noteNumber) {
  79                 if (p.getVelFrom() <= velocity && p.getVelTo() >= velocity) {
  80                     if (!p.isReleaseTriggered()) {
  81                         player.play(i, null);
  82                     }
  83                 }
  84             }
  85         }
  86     }
  87 }