/*
 * @(#)BooleanControl.java	1.16 05/11/17
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package javax.sound.sampled;

/**
 * A <code>BooleanControl</code> provides the ability to switch between
 * two possible settings that affect a line's audio.  The settings are boolean
 * values (<code>true</code> and <code>false</code>).  A graphical user interface
 * might represent the control by a two-state button, an on/off switch, two
 * mutually exclusive buttons, or a checkbox (among other possibilities).
 * For example, depressing a button might activate a
 * <code>{@link BooleanControl.Type#MUTE MUTE}</code> control to silence
 * the line's audio.
 * <p>
 * As with other <code>{@link Control}</code> subclasses, a method is
 * provided that returns string labels for the values, suitable for
 * display in the user interface.
 *
 * @author Kara Kytle
 * @version 1.16, 05/11/17
 * @since 1.3
 */
public abstract class BooleanControl extends Control {
    
    
    // INSTANCE VARIABLES
    
    /**
     * The <code>true</code> state label, such as "true" or "on."
     */
    private final String trueStateLabel;
    
    /**
     * The <code>false</code> state label, such as "false" or "off."
     */
    private final String falseStateLabel;
    
    /**
     * The current value.
     */
    private boolean value;
    
    
    // CONSTRUCTORS
    
    
    /**
     * Constructs a new boolean control object with the given parameters.
     *
     * @param type the type of control represented this float control object
     * @param initialValue the initial control value
     * @param trueStateLabel the label for the state represented by <code>true</code>,
     * such as "true" or "on."
     * @param falseStateLabel the label for the state represented by <code>false</code>,
     * such as "false" or "off."
     */
    protected BooleanControl(Type type, boolean initialValue, String trueStateLabel, String falseStateLabel) {

	
	super(type);
	this.value = initialValue;
	this.trueStateLabel = trueStateLabel;
	this.falseStateLabel = falseStateLabel;
    }
    
    
    /**
     * Constructs a new boolean control object with the given parameters.
     * The labels for the <code>true</code> and <code>false</code> states
     * default to "true" and "false."
     *
     * @param type the type of control represented by this float control object
     * @param initialValue the initial control value
     */
    protected BooleanControl(Type type, boolean initialValue) {
	this(type, initialValue, "true", "false");
    }
    
    
    // METHODS
    
    
    /**
     * Sets the current value for the control.  The default
     * implementation simply sets the value as indicated.
     * Some controls require that their line be open before they can be affected
     * by setting a value.
     * @param value desired new value.
     */
    public void setValue(boolean value) {
	this.value = value;
    }
    
    
    
    /**