Re: Layout labels with variable text length

Simon wrote:


I've been looking all over for this, and finally located it again. If
you use a JOptionPane, there's a method, getMaxCharactersPerLineCount(),
that you can override to limit the width of the dialog. It may not work
100% for you, but I think it's interesting and might work in some
circumstances.

package fubar;

import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;

public class DialogLabelTest {

     private static final String MESSAGE =
     "This is a rather long message which I have made so that you "+
     "can see the effect of the getMaxCharactersPerLineCount() "+
     "method when it is used in a JOptionPane. Whew!";

     public static void main( String[] args )
     {
         SwingUtilities.invokeLater( new Runnable() {
             public void run() {
                 createAndShowGui();
             }
         } );
     }

     private static void createAndShowGui() {

         JOptionPane normal = new JOptionPane( MESSAGE );
         normal.createDialog( "Normal" ).setVisible( true );

         JOptionPane limited = new LimitedWidthOptionPane( 40 );
         limited.setMessage( MESSAGE );
         limited.createDialog( "Limited" ).setVisible( true );

     }

}

class LimitedWidthOptionPane extends JOptionPane {
     private final int width; // width in characters
     public LimitedWidthOptionPane( int i ) {
         width = i;
     }
     @Override
     public int getMaxCharactersPerLineCount() {
         return width;
     }
}