/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.uima.tools.cvd.control;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.net.URL;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.text.html.HTMLDocument;
import javax.swing.text.html.HTMLFrameHyperlinkEvent;
import org.apache.uima.tools.cvd.CVD;
import org.apache.uima.tools.cvd.MainFrame;
/**
* Show the CVD manual in a Swing html widget. Unfortunately, the html we currently produce from
* our docbook source is too advanced for the the simple html widget, and is virtually unreadable.
* That makes this option relatively useless atm (it's better the more recent the Java version).
*/
public class ManualHandler implements ActionListener {
private final MainFrame main;
public ManualHandler(MainFrame frame) {
this.main = frame;
}
private class Hyperactive implements HyperlinkListener {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
JEditorPane pane = (JEditorPane) e.getSource();
if (e instanceof HTMLFrameHyperlinkEvent) {
HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent) e;
HTMLDocument doc = (HTMLDocument) pane.getDocument();
doc.processHTMLFrameHyperlinkEvent(evt);
} else {
try {
pane.setPage(e.getURL());
} catch (Throwable t) {
t.printStackTrace();
}
}
}
}
}
public void actionPerformed(ActionEvent event) {
try {
String manFileName = "tools/tools.html";
JFrame manFrame = new JFrame("CVD Manual");
JEditorPane editorPane = new JEditorPane();
editorPane.setEditable(false);
editorPane.addHyperlinkListener(new Hyperactive());
URL manURL = ClassLoader.getSystemResource(manFileName);
if (manURL == null) {
String manpath = System.getProperty(CVD.MAN_PATH_PROPERTY, null);
if (manpath != null) {
File manDir = new File(manpath);
File manFile = new File(manDir, manFileName);
if (manFile.exists()) {
manURL = manFile.toURL();
} else {
String msg = String.format("Can't find manual in directory: %s", manpath);
JOptionPane.showMessageDialog(this.main, msg, "Error loading manual",
JOptionPane.ERROR_MESSAGE);
return;
}
}
}
if (manURL == null) {
String msg = "Can't find manual. The manual is loaded via the classpath,\n"
+ "so make sure the manual folder is in the classpath.";
JOptionPane.showMessageDialog(this.main, msg, "Error loading manual",
JOptionPane.ERROR_MESSAGE);
return;
}
editorPane.setPage(manURL);
JScrollPane scrollPane = new JScrollPane(editorPane);
scrollPane.setPreferredSize(new Dimension(700, 800));
manFrame.setContentPane(scrollPane);
manFrame.pack();
manFrame.setVisible(true);
URL cvdLinkUrl = new URL(manURL.toString() + "#ugr.tools.cvd");
HyperlinkEvent e = new HyperlinkEvent(editorPane, HyperlinkEvent.EventType.ACTIVATED,
cvdLinkUrl);
editorPane.fireHyperlinkUpdate(e);
} catch (Exception e) {
this.main.handleException(e);
}
}
}