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MenuElement.java
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1998-02-26
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/*
* @(#)MenuElement.java 1.2 98/01/30
*
* Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the confidential and proprietary information of Sun
* Microsystems, Inc. ("Confidential Information"). You shall not
* disclose such Confidential Information and shall use it only in
* accordance with the terms of the license agreement you entered into
* with Sun.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
* SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
* SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
* THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
package com.sun.java.swing;
import java.awt.*;
import java.awt.event.*;
/**
* Any component that can be placed into a menu should implement this interface.
* This interface is used by MenuSelection to handle selection and navigation in
* menu hierarchies.
*
* @version 1.2 01/30/98
* @author Arnaud Weber
*/
public interface MenuElement {
/**
* Process a mouse event. event is a MouseEvent with source being the receiving element's component.
* path is the path of the receiving element in the menu
* hierarchy including the receiving element itself.
* manager is the MenuSelectionManager for the menu hierarchy.
* This method should process the MouseEvent and change the menu selection if necessary
* by using MenuSelectionManager's API
* Note: you do not have to forward the event to sub-components. This is done automatically
* by the MenuSelectionManager
*/
public void processMouseEvent(MouseEvent event,MenuElement path[],MenuSelectionManager manager);
/**
* Process a key event.
*/
public void processKeyEvent(KeyEvent event,MenuElement path[],MenuSelectionManager manager);
/**
* Call by the MenuSelection when the MenuElement is added or remove from
* the menu selection.
*/
public void menuSelectionChanged(boolean isIncluded);
/**
* This method should return an array containing the sub-elements for the receiving menu element
*/
public MenuElement[] getSubElements();
/*
* This method should return the java.awt.Component used to paint the receiving element.
* The returned component will be used to convert events and detect if an event is inside
* a MenuElement's component.
*/
public Component getComponent();
}