Bug 368929

Description Paul Gibbons 2012-01-18 05:19:27 EST

Build Identifier:  20110916-0149

The Slider  widget in the example program for SWt Slider( copied below) is not visible in Ubuntu 11.10 with Overlay Scrollbars enabled.

A workaround is to disable the Overlay Scrollbars by following the steps in http://www.webupd8.org/2011/04/how-to-disable-overlay-scrollbars-in.html :

sudo su
echo "export LIBOVERLAY_SCROLLBAR=0" > /etc/X11/Xsession.d/80overlayscrollbars

SWT Slider Example code copied from http://www.java2s.com/Code/Java/SWT-JFace-Eclipse/SWTSliders.htm


/*
 * Created on Nov 17, 2003
 *
 * To change the template for this generated file go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Slider;
import org.eclipse.swt.widgets.Text;

/**
 * @author Steven Holzner
 * 
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */

public class SWTSliders {

  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display, SWT.RESIZE);
    shell.setText("Sliders");
    shell.setSize(300, 200);

    final Label label = new Label(shell, SWT.NONE);
    label.setText("Move the slider");
    label.setBounds(0, 20, 150, 15);

    final Slider slider = new Slider(shell, SWT.HORIZONTAL);
    slider.setBounds(0, 40, 200, 20);

    final Text text = new Text(shell, SWT.BORDER);
    text.setBounds(0, 100, 200, 25);

    slider.addListener(SWT.Selection, new Listener() {
      public void handleEvent(Event event) {
        String outString = "Event: SWT.NONE";
        switch (event.detail) {
        case SWT.ARROW_DOWN:
          outString = "Event: SWT.ARROW_DOWN";
          break;
        case SWT.ARROW_UP:
          outString = "Event: SWT.ARROW_UP";
          break;
        case SWT.DRAG:
          outString = "Event: SWT.DRAG";
          break;
        case SWT.END:
          outString = "Event: SWT.END";
          break;
        case SWT.HOME:
          outString = "Event: SWT.HOME";
          break;
        case SWT.PAGE_DOWN:
          outString = "Event: SWT.PAGE_DOWN";
          break;
        case SWT.PAGE_UP:
          outString = "Event: SWT.PAGE_UP";
          break;
        }
        outString += " Position: " + slider.getSelection();
        text.setText(outString);
      }
    });

    shell.open();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    display.dispose();
  }
}



Reproducible: Always

Steps to Reproduce:
1.Run the SWt Slider program listed at http://www.java2s.com/Code/Java/SWT-JFace-Eclipse/SWTSliders.htm on Ubuntu 11.10 with Overlay Scrollbars enabled (default)
2. Slider is not visible
3.