JTextPane Styles Example 1 : TextPane « Swing JFC « Java

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Java » Swing JFC » TextPaneScreenshots 
JTextPane Styles Example 1
JTextPane Styles Example 1
   

/*
Core SWING Advanced Programming 
By Kim Topley
ISBN: 0 13 083292 8       
Publisher: Prentice Hall  
*/

import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;

public class StylesExample1 {
  public static void main(String[] args) {
    try {
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    catch (Exception evt) {}
  
    JFrame f = new JFrame("Styles Example 1");

    // Create the StyleContext, the document and the pane
    StyleContext sc = new StyleContext();
    final DefaultStyledDocument doc = new DefaultStyledDocument(sc);
    JTextPane pane = new JTextPane(doc);

    // Create and add the style
    final Style heading2Style = sc.addStyle("Heading2"null);
    heading2Style.addAttribute(StyleConstants.Foreground, Color.red);
    heading2Style.addAttribute(StyleConstants.FontSize, new Integer(16));
    heading2Style.addAttribute(StyleConstants.FontFamily, "serif");
    heading2Style.addAttribute(StyleConstants.Bold, new Boolean(true));

    try {
      SwingUtilities.invokeAndWait(new Runnable() {
        public void run() {
          try {
            // Add the text to the document
            doc.insertString(0, text, null);

            // Finally, apply the style to the heading
            doc.setParagraphAttributes(01, heading2Style, false);
          catch (BadLocationException e) {
          }
        }
      });
    catch (Exception e) {
      System.out.println("Exception when constructing document: " + e);
      System.exit(1);
    }

    f.getContentPane().add(new JScrollPane(pane));
    f.setSize(400300);
    f.setVisible(true);
  }

  public static final String text = "Attributes, Styles and Style Contexts\n"
      "The simple PlainDocument class that you saw in the previous "
      "chapter is only capable of holding text. The more complex text "
      "components use a more sophisticated model that implements the "
      "StyledDocument interface. StyledDocument is a sub-interface of "
      "Document that contains methods for manipulating attributes that "
      "control the way in which the text in the document is displayed. "
      "The Swing text package contains a concrete implementation of "
      "StyledDocument called DefaultStyledDocument that is used as the "
      "default model for JTextPane and is also the base class from which "
      "more specific models, such as the HTMLDocument class that handles "
      "input in HTML format, can be created. In order to make use of "
      "DefaultStyledDocument and JTextPane, you need to understand how "
      "Swing represents and uses attributes.\n";

}

           
         
    
    
  
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