Re: Unicode >16 Bit JTextPane etc..

Jan Burse <>
Sun, 09 Jun 2013 09:51:10 +0200
Doesn't give something useful on Mac.

I get for (note the not before the canDisplay()):

     public static void main(String[] args) {
         Font[] allFonts =
         for (int i = 0; i < allFonts.length; i++) {
             Font font = allFonts[i];
             if (!font.canDisplay(120000))
                 System.out.println("font=" + font.getFontName());

The following list:

font=Lucida Bright Demibold
font=Lucida Bright Demibold Italic
font=Lucida Bright Italic
font=Lucida Bright Regular
font=Lucida Sans Demibold
font=Lucida Sans Regular
font=Lucida Sans Typewriter Bold
font=Lucida Sans Typewriter Regular

But every font not on the above list, does erroreously
display some chinese character instead of the math symbol.

The fonts on the above list, on the other hand seem
to show a white box on the Mac.


P.S.: I am using 1.7.0_15. Let me try a newer version.

markspace schrieb:

On 6/8/2013 9:16 PM, Jeff Higgins wrote:

textpane.setFont(new Font("Dialog", Font.PLAIN, 60));

This ends up printing Cambria Math for the font name on my system.

class SmallDemo

    private JFrame frame = new JFrame( "A Small Demo" );
    private JTextPane textpane = new JTextPane();
    private static final String TEST =

    public SmallDemo()
       try {
          frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
          Font[] allFonts =
          Font usingFont = null;
          for( Font font : allFonts ) {
             if( font.canDisplay( 120000 ) ) {
                usingFont = new Font( font.getFontName(), Font.PLAIN, 30 );
                textpane.setFont( usingFont );
          textpane.setText( TEST );
          StyledDocument doc = textpane.getStyledDocument();
          doc.insertString( doc.getLength(), usingFont.getFontName(),
          frame.add( textpane );
          frame.setVisible( true );
       } catch( BadLocationException ex ) {
          Logger.getLogger( SmallDemo.class.getName() ).log(
Level.SEVERE, null,
                  ex );

    public static void main( String[] args )
       SwingUtilities.invokeLater( new Runnable()
          public void run()
             SmallDemo demo = new SmallDemo();
       } );

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