1 /* 2 * Copyright (c) 1999, 2018, 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 javax.sound.sampled; 27 28 /** 29 * A {@code CompoundControl}, such as a graphic equalizer, provides control over 30 * two or more related properties, each of which is itself represented as a 31 * {@code Control}. 32 * 33 * @author Kara Kytle 34 * @since 1.3 35 */ 36 public abstract class CompoundControl extends Control { 37 38 /** 39 * The set of member controls. 40 */ 41 private final Control[] controls; 42 43 /** 44 * Constructs a new compound control object with the given parameters. 45 * 46 * @param type the type of control represented this compound control object 47 * @param memberControls the set of member controls 48 */ 49 protected CompoundControl(Type type, Control[] memberControls) { 50 super(type); 51 this.controls = memberControls; 52 } 53 54 /** 55 * Returns the set of member controls that comprise the compound control. 56 * 57 * @return the set of member controls 58 */ 59 public Control[] getMemberControls() { 60 return controls.clone(); 61 } 62 63 /** 64 * Provides a string representation of the control. 65 * 66 * @return a string description 67 */ 68 @Override 69 public String toString() { 70 71 StringBuilder sb = new StringBuilder(); 72 for (int i = 0; i < controls.length; i++) { 73 if (i != 0) { 74 sb.append(", "); 75 if ((i + 1) == controls.length) { 76 sb.append("and "); 77 } 78 } 79 sb.append(controls[i].getType()); 80 } 81 82 return new String(getType() + " Control containing " + sb + " Controls."); 83 } 84 85 /** 86 * An instance of the {@code CompoundControl.Type} inner class identifies 87 * one kind of compound control. 88 * 89 * @author Kara Kytle 90 * @since 1.3 91 */ 92 public static class Type extends Control.Type { 93 94 /** 95 * Constructs a new compound control type. 96 * 97 * @param name the name of the new compound control type 98 */ 99 protected Type(final String name) { 100 super(name); 101 } 102 } 103 }