You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
147 lines
3.0 KiB
147 lines
3.0 KiB
/*
|
|
* Copyright (c) 1999, 2002, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*
|
|
*/
|
|
|
|
package javax.sound.sampled;
|
|
|
|
/**
|
|
* {@link Line Lines} often have a set of controls, such as gain and pan, that affect
|
|
* the audio signal passing through the line. Java Sound's <code>Line</code> objects
|
|
* let you obtain a particular control object by passing its class as the
|
|
* argument to a {@link Line#getControl(Control.Type) getControl} method.
|
|
* <p>
|
|
* Because the various types of controls have different purposes and features,
|
|
* all of their functionality is accessed from the subclasses that define
|
|
* each kind of control.
|
|
*
|
|
* @author Kara Kytle
|
|
*
|
|
* @see Line#getControls
|
|
* @see Line#isControlSupported
|
|
* @since 1.3
|
|
*/
|
|
public abstract class Control {
|
|
|
|
|
|
// INSTANCE VARIABLES
|
|
|
|
/**
|
|
* The control type.
|
|
*/
|
|
private final Type type;
|
|
|
|
|
|
|
|
// CONSTRUCTORS
|
|
|
|
/**
|
|
* Constructs a Control with the specified type.
|
|
* @param type the kind of control desired
|
|
*/
|
|
protected Control(Type type) {
|
|
this.type = type;
|
|
}
|
|
|
|
|
|
// METHODS
|
|
|
|
/**
|
|
* Obtains the control's type.
|
|
* @return the control's type.
|
|
*/
|
|
public Type getType() {
|
|
return type;
|
|
}
|
|
|
|
|
|
// ABSTRACT METHODS
|
|
|
|
/**
|
|
* Obtains a String describing the control type and its current state.
|
|
* @return a String representation of the Control.
|
|
*/
|
|
public String toString() {
|
|
return new String(getType() + " Control");
|
|
}
|
|
|
|
|
|
/**
|
|
* An instance of the <code>Type</code> class represents the type of
|
|
* the control. Static instances are provided for the
|
|
* common types.
|
|
*/
|
|
public static class Type {
|
|
|
|
// CONTROL TYPE DEFINES
|
|
|
|
// INSTANCE VARIABLES
|
|
|
|
/**
|
|
* Type name.
|
|
*/
|
|
private String name;
|
|
|
|
|
|
// CONSTRUCTOR
|
|
|
|
/**
|
|
* Constructs a new control type with the name specified.
|
|
* The name should be a descriptive string appropriate for
|
|
* labelling the control in an application, such as "Gain" or "Balance."
|
|
* @param name the name of the new control type.
|
|
*/
|
|
protected Type(String name) {
|
|
this.name = name;
|
|
}
|
|
|
|
|
|
// METHODS
|
|
|
|
/**
|
|
* Finalizes the equals method
|
|
*/
|
|
public final boolean equals(Object obj) {
|
|
return super.equals(obj);
|
|
}
|
|
|
|
/**
|
|
* Finalizes the hashCode method
|
|
*/
|
|
public final int hashCode() {
|
|
return super.hashCode();
|
|
}
|
|
|
|
/**
|
|
* Provides the <code>String</code> representation of the control type. This <code>String</code> is
|
|
* the same name that was passed to the constructor.
|
|
*
|
|
* @return the control type name
|
|
*/
|
|
public final String toString() {
|
|
return name;
|
|
}
|
|
} // class Type
|
|
|
|
} // class Control
|