How do I mix different fonts in the same text box

[madroadbiker]

I have a JTextArea in my form which needs to be able to display a mix of normal text with symbols (as in Microsoft word "symbol" font). I can't find any information on how to do that. I have to also then be able to export the contents of the text area box to a Word document. Can someone point me in the right direction? Thanks.

[camickr]

You can use a JTextPane for this.

Using Text Components (The Java™ Tutorials > Creating a GUI With JFC/Swing > Using Swing Components)

[madroadbiker]

Ok I looked at the tutorials and am now using a JTextPane. I can now mix fonts and other attributes just fine. However, when I try to set the "Symbol" font so I can display symbols, it doesn't work. Just seems to ignore it. In the code snippet below, "argumentWindow" is my JTextPane and "argWindowDoc" is a StyledDocument.

        argWindowDoc = argumentWindow.getStyledDocument();
        Style def = StyleContext.getDefaultStyleContext().
                        getStyle(StyleContext.DEFAULT_STYLE);

        Style regular = argWindowDoc.addStyle("regular", def);
        StyleConstants.setFontFamily(def, "LucidaGrande");
        StyleConstants.setFontSize(def, 40);
        Style def2 = StyleContext.getDefaultStyleContext().
                        getStyle(StyleContext.DEFAULT_STYLE);
        Style symbol = argWindowDoc.addStyle("Symbol", def2);
        StyleConstants.setFontFamily(def2, "Symbol");
        StyleConstants.setFontSize(def2, 20);

        // This outputs some text to test with
        argWindowDoc.insertString(argWindowDoc.getLength(), "abcdefghijklmnop", argWindowDoc.getStyle("regular"));
        argWindowDoc.insertString(argWindowDoc.getLength(), "abcdefghijklmnop", argWindowDoc.getStyle("symbol"));

Both display the same. I tried changing the symbol font to other fonts and they work. I know the symbol font exists on my system because I displayed all available fonts and it is one of them. Am I doing something wrong?

[camickr]

I don't know much about Fonts but (on my machine) when you select the Symbol font all you get is a bunch of rectangles. So maybe Swing doesn't know how to renderer the Font?

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.plaf.basic.*;

public class ComboBoxFonts extends JFrame implements ItemListener
{
	JTextArea textArea;
	JComboBox comboBox;

    public ComboBoxFonts()
    {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment ();
        Font [] fonts = ge.getAllFonts ();
        System.out.println(fonts.length);
        comboBox = new JComboBox( fonts );
        comboBox.setRenderer( new MyFontRenderer() );
        comboBox.addItemListener( this );
        getContentPane().add( comboBox, BorderLayout.SOUTH );
        textArea= new JTextArea("Some text", 3, 20);
        getContentPane().add( new JScrollPane( textArea ) );
    }

	public void itemStateChanged(ItemEvent e)
	{
		Font font = (Font)e.getItem();
		textArea.setFont( font.deriveFont( textArea.getFont().getSize2D() ) );
//		comboBox.setFont( font.deriveFont( comboBox.getFont().getSize2D() ) );
	}

    public static void main(String[] args)
    {
        ComboBoxFonts frame = new ComboBoxFonts();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setLocationRelativeTo( null );
        frame.setVisible( true );
    }

    class MyFontRenderer extends BasicComboBoxRenderer
    {
        public Component getListCellRendererComponent(
            JList list, Object value, int index, boolean isSelected, boolean cellHasFocus)
        {
            super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);

            Font font = (Font)value;
//            setFont( font.deriveFont(12.0f) );
            setText( font.getName() );

            return this;
        }
    }

}