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HighlightArea.java
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1996-12-06
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/*
* @(#)HighlightArea.java 1.5 96/12/06
*
* Copyright (c) 1994-1996 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
import java.awt.Graphics;
import java.net.URL;
import java.net.MalformedURLException;
/**
* An area highlighting ImageArea class.
* This class extends the basic ImageArea Class to highlight an area of
* the base image when the mouse enters the area.
*
* @author Jim Graham
* @version 1.5, 12/06/96
*/
class HighlightArea extends ImageMapArea {
int hlmode;
int hlpercent;
/**
* The argument string is the highlight mode to be used.
*/
public void handleArg(String arg) {
if (arg == null) {
hlmode = parent.hlmode;
hlpercent = parent.hlpercent;
} else {
if (arg.startsWith("darker")) {
hlmode = parent.DARKER;
arg = arg.substring("darker".length());
} else {
hlmode = parent.BRIGHTER;
if (arg.startsWith("brighter")) {
arg = arg.substring("brighter".length());
}
}
hlpercent = Integer.parseInt(arg);
}
}
public void makeImages() {
setHighlight(parent.getHighlight(X, Y, W, H, hlmode, hlpercent));
}
public void highlight(Graphics g) {
if (entered) {
g.drawImage(hlImage, X, Y, this);
}
}
/**
* The area is repainted when the mouse enters.
*/
public void enter() {
repaint();
}
/**
* The area is repainted when the mouse leaves.
*/
public void exit() {
repaint();
}
}