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 
  26 package com.sun.media.sound;
  27 
  28 import java.util.Arrays;
  29 
  30 /**
  31  * A standard director who chooses performers
  32  * by there keyfrom,keyto,velfrom,velto properties.
  33  *
  34  * @author Karl Helgason
  35  */
  36 public final class ModelStandardDirector implements ModelDirector {
  37 
  38     private final ModelPerformer[] performers;
  39     private final ModelDirectedPlayer player;
  40     private boolean noteOnUsed = false;
  41     private boolean noteOffUsed = false;
  42 
  43     public ModelStandardDirector(final ModelPerformer[] performers,
  44                                  final ModelDirectedPlayer player) {
  45         this.performers = Arrays.copyOf(performers, performers.length);
  46         this.player = player;
  47         for (final ModelPerformer p : this.performers) {
  48             if (p.isReleaseTriggered()) {
  49                 noteOffUsed = true;
  50             } else {
  51                 noteOnUsed = true;
  52             }
  53         }
  54     }
  55 
  56     @Override
  57     public void close() {
  58     }
  59 
  60     @Override
  61     public void noteOff(int noteNumber, int velocity) {
  62         if (!noteOffUsed)
  63             return;
  64         for (int i = 0; i < performers.length; i++) {
  65             ModelPerformer p = performers[i];
  66             if (p.getKeyFrom() <= noteNumber && p.getKeyTo() >= noteNumber) {
  67                 if (p.getVelFrom() <= velocity && p.getVelTo() >= velocity) {
  68                     if (p.isReleaseTriggered()) {
  69                         player.play(i, null);
  70                     }
  71                 }
  72             }
  73         }
  74     }
  75 
  76     @Override
  77     public void noteOn(int noteNumber, int velocity) {
  78         if (!noteOnUsed)
  79             return;
  80         for (int i = 0; i < performers.length; i++) {
  81             ModelPerformer p = performers[i];
  82             if (p.getKeyFrom() <= noteNumber && p.getKeyTo() >= noteNumber) {
  83                 if (p.getVelFrom() <= velocity && p.getVelTo() >= velocity) {
  84                     if (!p.isReleaseTriggered()) {
  85                         player.play(i, null);
  86                     }
  87                 }
  88             }
  89         }
  90     }
  91 }