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(0, 1, 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(400, 300);
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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