private JTextPane createTextPane() {
    String[] initString =
            { "This is an editable JTextPane, ",            //regular
              "another ",                                   //italic
              "styled ",                                    //bold
              "text ",                                      //small
              "component, ",                                //large
              "which supports embedded components..." + newline,//regular
              " " + newline,                                //button
              "...and embedded icons..." + newline,         //regular
              " ",                                          //icon
              newline + "JTextPane is a subclass of JEditorPane that " +
                "uses a StyledEditorKit and StyledDocument, and provides " +
                "cover methods for interacting with those objects."
             };
 
    String[] initStyles =
            { "regular", "italic", "bold", "small", "large",
              "regular", "button", "regular", "icon",
              "regular"
            };
 
    JTextPane textPane = new JTextPane();
    StyledDocument doc = textPane.getStyledDocument();
    addStylesToDocument(doc);
 
    try {
        for (int i=0; i < initString.length; i++) {
            doc.insertString(doc.getLength(), initString[i],
                             doc.getStyle(initStyles[i]));
        }
    } catch (BadLocationException ble) {
        System.err.println("Couldn't insert initial text into text pane.");
    }
 
    return textPane;
}
 
protected void addStylesToDocument(StyledDocument doc) {
    //Initialize some styles.
    Style def = StyleContext.getDefaultStyleContext().
                    getStyle(StyleContext.DEFAULT_STYLE);
 
    Style regular = doc.addStyle("regular", def);
    StyleConstants.setFontFamily(def, "SansSerif");
 
    Style s = doc.addStyle("italic", regular);
    StyleConstants.setItalic(s, true);
 
    s = doc.addStyle("bold", regular);
    StyleConstants.setBold(s, true);
 
    s = doc.addStyle("small", regular);
    StyleConstants.setFontSize(s, 10);
 
    s = doc.addStyle("large", regular);
    StyleConstants.setFontSize(s, 16);
 
    s = doc.addStyle("icon", regular);
    StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
    ImageIcon pigIcon = createImageIcon("images/Pig.gif",
                                        "a cute pig");
    if (pigIcon != null) {
        StyleConstants.setIcon(s, pigIcon);
    }
 
    s = doc.addStyle("button", regular);
    StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
    ImageIcon soundIcon = createImageIcon("images/sound.gif",
                                          "sound icon");
    JButton button = new JButton();
    if (soundIcon != null) {
        button.setIcon(soundIcon);
    } else {
        button.setText("BEEP");
    }
    button.setCursor(Cursor.getDefaultCursor());
    button.setMargin(new Insets(0,0,0,0));
    button.setActionCommand(buttonString);
    button.addActionListener(this);
    StyleConstants.setComponent(s, button);
}