public MainPanel() {
super(new BorderLayout());
JEditorPane editor =
new JEditorPane("text/html", String.format("<html><a href='%s'>%s</a>", MYSITE, MYSITE));
editor.setOpaque(false);
editor.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
editor.setEditable(false);
editor.addHyperlinkListener(
new HyperlinkListener() {
@Override
public void hyperlinkUpdate(HyperlinkEvent e) {
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED
&& Desktop.isDesktopSupported()) {
try {
Desktop.getDesktop().browse(new URI(MYSITE));
} catch (IOException | URISyntaxException ex) {
ex.printStackTrace();
}
textArea.setText(e.toString());
}
}
});
JPanel p = new JPanel();
p.add(editor);
p.setBorder(BorderFactory.createTitledBorder("Desktop.getDesktop().browse(URI)"));
add(p, BorderLayout.NORTH);
add(new JScrollPane(textArea));
setPreferredSize(new Dimension(320, 240));
}
public EditorPaneHTMLHelp(String htmlFile) {
if (GlobalValues.useSystemBrowserForHelp) {
Desktop d = GlobalValues.desktop;
try {
// create a temp file
GlobalValues.forHTMLHelptempFile = new File("tempHTMLHelpSynthetic.html");
FileWriter fw = new FileWriter(GlobalValues.forHTMLHelptempFile);
java.util.List<String> list = readTextFromJar(htmlFile);
Iterator<String> it = list.iterator();
while (it.hasNext()) {
fw.write(it.next() + "\n");
}
String canonicalPathOfFile = GlobalValues.forHTMLHelptempFile.getCanonicalPath();
URL urlFile = new URL("file://" + canonicalPathOfFile);
URI uriOfFile = urlFile.toURI();
fw.close();
d.browse(uriOfFile);
} catch (Exception e) {
e.printStackTrace();
}
} else {
URL initialURL = getClass().getResource(htmlFile);
font = GlobalValues.htmlfont;
String title = "HTML Help";
setTitle(title);
final Stack<String> urlStack = new Stack<String>();
final JEditorPane editorPane;
editorPane = new JEditorPane(new HTMLEditorKit().getContentType(), " ");
editorPane.setOpaque(false);
editorPane.setBorder(null);
editorPane.setEditable(false);
JPanel magPanel = new JPanel();
magnificationFactor = GlobalValues.helpMagnificationFactor;
magFactor = new JTextField(Double.toString(magnificationFactor));
JButton magButton = new JButton("Set Magnification: ");
magButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
magnificationFactor = Double.parseDouble(magFactor.getText());
GlobalValues.helpMagnificationFactor = magnificationFactor;
}
});
magPanel.setLayout(new GridLayout(1, 2));
magPanel.add(magButton);
magPanel.add(magFactor);
final JTextField url = new JTextField(initialURL.toString());
// set up hyperlink listener
editorPane.setEditable(false);
try {
// remember URL for back button
urlStack.push(initialURL.toString());
// show URL in text field
url.setText(initialURL.toString());
// add a CSS rule to force body tags to use the default label font
// instead of the value in javax.swing.text.html.default.csss
String bodyRule =
"body { font-family: "
+ font.getFamily()
+ "; "
+ "font-size: "
+ font.getSize() * GlobalValues.helpMagnificationFactor
+ "pt; }";
((HTMLDocument) editorPane.getDocument()).getStyleSheet().addRule(bodyRule);
editorPane.setPage(initialURL);
editorPane.firePropertyChange("dummyProp", true, false);
} catch (IOException e) {
editorPane.setText("Exception: " + e);
}
editorPane.addPropertyChangeListener(
new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
String bodyRule =
"body { font-family: "
+ font.getFamily()
+ "; "
+ "font-size: "
+ font.getSize() * GlobalValues.helpMagnificationFactor
+ "pt; }";
((HTMLDocument) editorPane.getDocument()).getStyleSheet().addRule(bodyRule);
}
});
editorPane.addHyperlinkListener(
new HyperlinkListener() {
public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
try {
// remember URL for back button
urlStack.push(event.getURL().toString());
// show URL in text field
url.setText(event.getURL().toString());
editorPane.setPage(event.getURL());
editorPane.firePropertyChange("dummyProp", true, false);
} catch (IOException e) {
editorPane.setText("Exception: " + e);
}
}
}
});
// set up checkbox for toggling edit mode
final JCheckBox editable = new JCheckBox();
editable.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
editorPane.setEditable(editable.isSelected());
}
});
// set up load button for loading URL
ActionListener listener =
new ActionListener() {
public void actionPerformed(ActionEvent event) {
try {
// remember URL for back button
urlStack.push(url.getText());
editorPane.setPage(url.getText());
editorPane.firePropertyChange("dummyProp", true, false);
} catch (IOException e) {
editorPane.setText("Exception: " + e);
}
}
};
JButton loadButton = new JButton("Load/Magnify");
loadButton.addActionListener(listener);
url.addActionListener(listener);
// set up back button and button action
JButton backButton = new JButton("Back");
backButton.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent event) {
if (urlStack.size() <= 1) return;
try {
// get URL from back button
urlStack.pop();
// show URL in text field
String urlString = urlStack.peek();
url.setText(urlString);
editorPane.setPage(urlString);
editorPane.firePropertyChange("dummyProp", true, false);
} catch (IOException e) {
editorPane.setText("Exception: " + e);
}
}
});
JPanel allPanel = new JPanel(new BorderLayout());
// put all control components in a panel
JPanel ctrlPanel = new JPanel(new BorderLayout());
JPanel urlPanel = new JPanel();
urlPanel.add(new JLabel("URL"));
urlPanel.add(url);
JPanel buttonPanel = new JPanel();
buttonPanel.add(loadButton);
buttonPanel.add(backButton);
buttonPanel.add(new JLabel("Editable"));
buttonPanel.add(magPanel);
buttonPanel.add(editable);
ctrlPanel.add(buttonPanel, BorderLayout.NORTH);
ctrlPanel.add(urlPanel, BorderLayout.CENTER);
allPanel.add(ctrlPanel, BorderLayout.NORTH);
allPanel.add(new JScrollPane(editorPane), BorderLayout.CENTER);
add(allPanel);
}
}