java.awt.Cursor#HAND_CURSOR源码实例Demo

public void mouseMoved(MouseEvent ev) {
JTextPane editor = (JTextPane) ev.getSource();
editor.setEditable(false);
  Point pt = new Point(ev.getX(), ev.getY());
  int pos = editor.viewToModel(pt);
  if (pos >= 0) {
    Document eDoc = editor.getDocument();
    if (eDoc instanceof DefaultStyledDocument) {
      DefaultStyledDocument hdoc =
        (DefaultStyledDocument) eDoc;
      Element e = hdoc.getCharacterElement(pos);
      AttributeSet a = e.getAttributes();
      AttributeSet tagA = (AttributeSet) a.getAttribute(HTML.Tag.A);
      String href = null;
      if (tagA!=null){
          href = (String)tagA.getAttribute(HTML.Attribute.HREF);
      }
      if (href != null) {
          editor.setToolTipText(href);
          if (editor.getCursor().getType() != Cursor.HAND_CURSOR) {
              editor.setCursor(new Cursor(Cursor.HAND_CURSOR));
          }
      }
      else {
          editor.setToolTipText(null);
          if (editor.getCursor().getType() != Cursor.DEFAULT_CURSOR) {
              editor.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
        }
      }
    }
  }
  else {
      editor.setToolTipText(null);
  }
}
 

/**
 * Create the GUI.
 * 
 * @throws IOException
 */
public DualSub() throws IOException {
	// Look and feel
	try {
		// UIManager.setLookAndFeel(new NimbusLookAndFeel());

		UIManager.setLookAndFeel(new Plastic3DLookAndFeel());
		JFrame.setDefaultLookAndFeelDecorated(false);
		JDialog.setDefaultLookAndFeelDecorated(false);

		// UIManager.setLookAndFeel(UIManager
		// .getCrossPlatformLookAndFeelClassName());
		// JFrame.setDefaultLookAndFeelDecorated(true);
		// JDialog.setDefaultLookAndFeelDecorated(true);
	} catch (Exception e) {
		log.warn(e.getMessage());
	}

	splash = new Splash(ClassLoader.getSystemResource("img/splash.png"));
	cursor = new Cursor(Cursor.HAND_CURSOR);

	loadProperties();

	// Default language
	String locale = preferences.get("locale",
			properties.getProperty("locale"));
	if (!locale.isEmpty()) {
		I18N.setLocale(locale);
	}

	initialize();

	menu = new Menu(this, locale);
	menu.addMenu(leftFileListener, rightFileListener, folderListener,
			mergeButtonListener);
	showFrame();
}