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jeremybenn |
/*
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.sound.sampled;
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/**
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* A BooleanControl is a Control which has two states.
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* @since 1.3
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*/
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public abstract class BooleanControl extends Control
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{
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/**
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* A Type specialized to represent a boolean control.
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* @since 1.3
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*/
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public static class Type extends Control.Type
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{
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// FIXME: correct constructions?
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/**
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* A control for applying reverb.
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*/
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public final static Type APPLY_REVERB = new Type("Apply reverb");
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/**
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* A control for muting.
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*/
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public final static Type MUTE = new Type("Mute");
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/**
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* Create a new Type given its name.
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* @param name the name of the type
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*/
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protected Type(String name)
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{
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super(name);
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}
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}
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private boolean value;
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private String trueLabel;
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private String falseLabel;
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/**
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* Create a new boolean control, with the indicated Type and initial
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* value. The description strings will default to "true" and "false".
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* @param type the type
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* @param init the initial value
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*/
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protected BooleanControl(Type type, boolean init)
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{
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super(type);
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this.value = init;
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this.trueLabel = "true";
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this.falseLabel = "false";
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}
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/**
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* Create a new boolean control, with the indicated Type, initial
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* value, and labels.
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* @param type the type
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* @param init the initial value
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* @param trueLabel the label for the true state
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* @param falseLabel the label for the false state
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*/
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protected BooleanControl(Type type, boolean init, String trueLabel,
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String falseLabel)
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{
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super(type);
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this.value = init;
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this.trueLabel = trueLabel;
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this.falseLabel = falseLabel;
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}
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/**
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* Return the label corresponding to the indicated state.
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* @param state the state
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* @return the true label or the false label, as appropriate
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*/
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public String getStateLabel(boolean state)
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{
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return state ? trueLabel : falseLabel;
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}
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/**
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* Return the current value of thhe control.
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*/
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public boolean getValue()
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{
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return value;
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}
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/**
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* Set the value of the control as indicated.
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* @param value the new value
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*/
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public void setValue(boolean value)
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{
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this.value = value;
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}
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/**
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* Return a string describing this control.
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*/
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public String toString()
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{
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return super.toString() + ": " + getStateLabel(value);
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}
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}
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