usage of progress bar

[nocomm]

hi again

right now i am searching for an example using the progress bar. in my application i start a file system browsing and i want to monitor the progress with the progress bar.
actually i am not really sure, if progress bar is the right tool, as all notes i read so far were quite poor.

maybe it is possible that a short example will be posted here...

that would really be a great help
thanx
nocomm

[admin]

I also not sure that ProgressBar is good choice, may be you should look at JFace dialog: ProgressMonitorDialog.

Here is sample code for using ProgressBar.

Code: Select all

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
/**
* @author scheglov_ke
*/
public class TestProgressBar {
   private static ProgressBar m_ProgressBar;
   private static Display m_Display;
   private static int m_Value;
   public static void main(String[] args) {
      m_Display = new Display();
      final Shell shell = new Shell();
      shell.setLayout(new GridLayout());
      shell.setText("SWT Application");
      {
         m_ProgressBar = new ProgressBar(shell, SWT.NONE);
         m_ProgressBar.setSelection(0);
         m_ProgressBar.setMinimum(0);
         m_ProgressBar.setMaximum(100);
         m_ProgressBar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
      }
      {
         final Button button = new Button(shell, SWT.NONE);
         button.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent e) {
               handleStartProcess();
            }
         });
         button.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
         button.setText("&Start process");
      }
      // DESIGNER: Add controls before this line.
      shell.open();
      while (!shell.isDisposed()) {
         if (!m_Display.readAndDispatch())
            m_Display.sleep();
      }
   }
   static void handleStartProcess() {
      Thread thread = new Thread() {
         public void run() {
            try {
               m_Value = 0;
               for (int i = 0; i < 100; i++) {
                  m_Display.syncExec(new Runnable() {
                     public void run() {
                        m_ProgressBar.setSelection(m_Value);
                     }
                  });
                  m_Value++;
                  sleep(100);
               }
            } catch (Throwable e) {
               e.printStackTrace();
            }
         }
      };
      thread.setDaemon(true);
      thread.start();
   }
}


[nocomm]

thanks a lot, admin!

code looks quite fine for my purpose, I'll try it...

nocomm