/*
 * @(#)RoundHrefButtonArea.java	1.4 96/04/24  
 *
 * Copyright (c) 1994-1996 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and
 * without fee is hereby granted. 
 * Please refer to the file http://java.sun.com/copy_trademarks.html
 * for further important copyright and trademark information and to
 * http://java.sun.com/licensing.html for further important licensing
 * information for the Java (tm) Technology.
 * 
 * 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.
 * 
 * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
 * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
 * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
 * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
 * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
 * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
 * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES").  SUN
 * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
 * HIGH RISK ACTIVITIES.
 */

/**
 * An improved, round, "Fetch a URL" ImageArea class.
 * This class extends the HrefButtonArea Class to make the 3D button
 * a rounded ellipse.  All of the same feedback and operational
 * charactistics as the HrefButtonArea apply.
 *
 * @author 	Jim Graham
 * @version 	1.4, 04/24/96
 */
class RoundHrefButtonArea extends HrefButtonArea {
    /**
     * The filter used to create the 3D look for the button when it is up.
     */
    RoundButtonFilter roundfilter;

    /**
     * Test if the coordinate is inside the round region.  Use the test
     * provided by the filter that creates the 3D look for consistency.
     */
    public boolean inside(int x, int y) {
	return roundfilter.inside(x - X, y - Y);
    }

    /**
     * Construct the 3D look images that this area uses to draw the button.
     */
    public void makeImages() {
	roundfilter = new RoundButtonFilter(false, parent.hlpercent,
					    border, W, H);
	upImage = parent.getHighlight(X, Y, W, H, roundfilter);
	downImage = parent.getHighlight(X, Y, W, H,
					new RoundButtonFilter(true,
							      parent.hlpercent,
							      border, W, H));
    }
}