//{HEADER
/**
* This class is part of jnex 'Nexirius Application Framework for Java'
*
* Copyright (C) Nexirius GmbH, CH-4450 Sissach, Switzerland (www.nexirius.ch)
*
* <p>This library is free software; you can redistribute it and/or<br>
* modify it under the terms of the GNU Lesser General Public<br>
* License as published by the Free Software Foundation; either<br>
* version 2.1 of the License, or (at your option) any later version.</p>
*
* <p>This library is distributed in the hope that it will be useful,<br>
* but WITHOUT ANY WARRANTY; without even the implied warranty of<br>
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU<br>
* Lesser General Public License for more details.</p>
*
* <p>You should have received a copy of the GNU Lesser General Public<br>
* License along with this library; if not, write to the Free Software<br>
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</p>
* </blockquote>
*
* <p>
* Nexirius GmbH, hereby disclaims all copyright interest in<br>
* the library jnex' 'Nexirius Application Framework for Java' written<br>
* by Marcel Baumann.</p>
*/
//}HEADER
package com.nexirius.framework.dataviewer;
import com.nexirius.framework.datamodel.StringModel;
import com.nexirius.framework.datamodel.DataModelEvent;
import javax.swing.*;
import javax.swing.event.HyperlinkListener;
import javax.swing.event.HyperlinkEvent;
import javax.swing.border.EtchedBorder;
import java.awt.*;
/**
* This viewer is designed to show HTML files
*
* @author Marcel Baumann
*/
public class HTMLViewer extends DataViewer {
public static final String s_viewername = "HTMLViewer";
protected JEditorPane editorPane = null;
protected boolean asURL;
/**
* @param model The StringModel is used as a file name or as a URL of the HTML file.
*/
public HTMLViewer(StringModel model, boolean asURL) {
super(model);
this.asURL = asURL;
}
/**
* Returns the associated string model
*/
public StringModel getModel() {
return (StringModel) getDataModel();
}
/**
* Returns the Swing JPanel which is used to display JEditorPane
*/
public JPanel getJPanel() {
return (JPanel) getJComponent();
}
/**
* Creates the actual JPanel
*/
public void create() {
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(new EtchedBorder());
setJComponent(panel);
editorPane = new JEditorPane("text/html", "");
editorPane.setEditable(false);
panel.add(BorderLayout.CENTER, editorPane);
editorPane.setSize(400, 400);
editorPane.addHyperlinkListener(new MyHyperlinkListener());
update();
}
/**
* Use the new string value of the assotiated model as an existing file name or as a URL
* and load and paint the associated image.
*/
public void update() {
if (isCreated()) {
if (getModel().isExceptional() || getModel().getText().length() == 0) {
editorPane.setText("");
} else {
String s = getModel().getText();
try {
if (asURL) {
editorPane.setPage(s);
} else {
editorPane.setText(s);
}
} catch (Exception ex) {
ex.printStackTrace();
editorPane.setText("");
}
}
}
}
/**
* Only for debugging
*/
public String getViewerName() {
return s_viewername;
}
/**
* Not implemented
*/
public void grabFocus() {
}
class MyHyperlinkListener implements HyperlinkListener {
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
DataModelEvent event = new DataModelEvent(getModel(), DataModelEvent.HYPERLINK);
event.setTransmitter(getModel());
event.setData(e.getURL().toString());
getModel().fireEvent(event);
}
}
}
}