/* $RCSfile$
* $Author: hansonr $
* $Date: 2009-07-01 01:58:33 +0200 (mer., 01 juil. 2009) $
* $Revision: 11158 $
*
* Copyright (C) 2002-2005 The Jmol Development Team
*
* Contact: jmol-developers@lists.sf.net
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.openscience.jmol.app.jmolpanel;
import java.net.URL;
import java.net.MalformedURLException;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.JScrollPane;
import javax.swing.JFrame;
import javax.swing.JEditorPane;
import javax.swing.JButton;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.Document;
import java.awt.Container;
import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.Dimension;
import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import org.jmol.i18n.GT;
import org.jmol.util.Logger;
public class AboutDialog extends JDialog implements HyperlinkListener {
JEditorPane html;
public AboutDialog(JFrame fr) {
super(fr, GT._("About Jmol"), true);
try {
URL aboutURL =
this.getClass().getClassLoader()
.getResource(JmolResourceHandler.getStringX("About.aboutURL"));
if (aboutURL != null) {
html = new JEditorPane(aboutURL);
} else {
html = new JEditorPane("text/plain",
GT._("Unable to find url \"{0}\".", JmolResourceHandler.getStringX("About.aboutURL")));
}
html.setEditable(false);
html.addHyperlinkListener(this);
} catch (MalformedURLException e) {
Logger.warn("Malformed URL: " + e);
} catch (IOException e) {
Logger.warn("IOException: " + e);
}
JScrollPane scroller = new JScrollPane() {
public Dimension getPreferredSize() {
return new Dimension(500, 400);
}
public float getAlignmentX() {
return LEFT_ALIGNMENT;
}
};
scroller.getViewport().add(html);
JPanel htmlWrapper = new JPanel(new BorderLayout());
htmlWrapper.setAlignmentX(LEFT_ALIGNMENT);
htmlWrapper.add(scroller, BorderLayout.CENTER);
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout(FlowLayout.RIGHT));
try {
JButton ok = new JButton(GT._("OK"));
ok.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
OKPressed();
}
});
buttonPanel.add(ok);
getRootPane().setDefaultButton(ok);
} catch (Exception exception) {
Logger.error(null, exception);
}
JPanel container = new JPanel();
container.setLayout(new BorderLayout());
container.add(htmlWrapper, BorderLayout.CENTER);
container.add(buttonPanel, BorderLayout.SOUTH);
getContentPane().add(container);
pack();
centerDialog();
}
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
linkActivated(e.getURL());
}
}
/**
* Follows the reference in an
* link. The given url is the requested reference.
* By default this calls <a href="#setPage">setPage</a>,
* and if an exception is thrown the original previous
* document is restored and a beep sounded. If an
* attempt was made to follow a link, but it represented
* a malformed url, this method will be called with a
* null argument.
*
* @param u the URL to follow
*/
protected void linkActivated(URL u) {
Cursor c = html.getCursor();
Cursor waitCursor = Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR);
html.setCursor(waitCursor);
SwingUtilities.invokeLater(new PageLoader(u, c));
}
/**
* temporary class that loads synchronously (although later than
* the request so that a cursor change can be done).
*/
class PageLoader implements Runnable {
PageLoader(URL u, Cursor c) {
url = u;
cursor = c;
}
public void run() {
if (url == null) {
// restore the original cursor
html.setCursor(cursor);
// remove this hack when automatic validation is
// activated.
Container parent = html.getParent();
parent.repaint();
} else {
Document doc = html.getDocument();
try {
html.setPage(url);
} catch (IOException ioe) {
html.setDocument(doc);
getToolkit().beep();
} finally {
// schedule the cursor to revert after the paint
// has happended.
url = null;
SwingUtilities.invokeLater(this);
}
}
}
URL url;
Cursor cursor;
}
protected void centerDialog() {
Dimension screenSize = this.getToolkit().getScreenSize();
Dimension size = this.getSize();
screenSize.height = screenSize.height / 2;
screenSize.width = screenSize.width / 2;
size.height = size.height / 2;
size.width = size.width / 2;
int y = screenSize.height - size.height;
int x = screenSize.width - size.width;
this.setLocation(x, y);
}
public void OKPressed() {
this.setVisible(false);
}
}