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/*
* @(#)JHInvoker.java 1.5 06/10/30
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS 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 THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*/
/**
* @(#) JHInvoker.java 1.5 - last change made 10/30/06
*
* (c) 1997-1998 Sun Microsystems, Inc. All rights reserved. Use is
* subject to license terms. Sun, Sun Microsystems, the Sun Logo, Solaris,
* Java, the Java Coffee Cup Logo, and JavaHelp are trademarks or registered
* trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
*/
import javax.swing.*;
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.Locale;
import java.io.IOException;
import javax.javahelp.*;
/**
* 1.2 version of this
*
* @author Eduardo Pelegri-Llopart
* @version 1.5 10/30/06
*/
public class JHInvoker extends JApplet implements MouseListener {
private Image glyph = null;
private String helpSetName = null;
private String helpSetURL = null;
private HelpSet hs;
private HelpBroker hb;
public void init() {
System.err.println("init called");
String glyphName = getParameter("GLYPH");
System.err.println("glyphName: "+glyphName);
helpSetName = getParameter("HELPSET");
System.err.println("helpSetName: "+helpSetName);
helpSetURL = getParameter("HELPSETURL");
System.err.println("helpSetURL: "+helpSetURL);
URL codebase = getCodeBase();
System.err.println("codebase: "+codebase);
try {
URL imageURL = new URL(codebase, glyphName);
System.err.println("imageURL: "+imageURL);
glyph = getImage(imageURL);
// glyph = getImage(codebase, glyphName);
if (glyph == null) {
System.err.println("could not load image for "+glyphName);
}
} catch (Exception ex) {
System.err.println("X!! exception while loading image"+ex);
}
addMouseListener(this);
}
private void createHelpSet(String name) {
ClassLoader loader = this.getClass().getClassLoader();
try {
// try - but it will fail in this case...
URL url = HelpSet.findHelpSet(loader, name, Locale.getDefault());
System.err.println("createHelpSet("+name+")");
System.err.println(" loader: "+loader);
System.err.println(" locale: "+Locale.getDefault());
System.err.println(" url: "+url);
if (helpSetURL != null && helpSetURL.length()!=0) {
// we proceed to ignore it and instead use URLHELPSET
url = new URL(helpSetURL);
}
url = new URL(helpSetURL);
System.err.println("Got a URL: "+url);
hs = new HelpSet(loader, url);
System.err.println("Loaded the HelpSet; hs: "+hs);
} catch (Exception ee) {
System.out.println ("Trouble in createHelpSet;");
ee.printStackTrace();
return;
}
}
public void mouseClicked(MouseEvent e) {
if (hs == null) {
System.err.println("mouseclicked... creating HelpSet...");
createHelpSet(helpSetName);
}
if (hb == null) {
System.err.println("mouseclicked... creating JavaHelp...");
hb = hs.createHelpBroker();
}
hb.setVisible(true);
}
public void mousePressed(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void paint(Graphics g) {
if (glyph != null) {
g.drawImage(glyph, 0, 0, this);
} else {
g.drawString("TROUBLE!!", 0, 0);
}
}
}