Java/SWT JFace Eclipse/Scale

Create a scale (maximum 40, page increment 5)

   <source lang="java">

/*

* Scale example snippet: create a scale (maximum 40, page increment 5)
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/

import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Scale; import org.eclipse.swt.widgets.Shell; public class Snippet45 { public static void main (String [] args) {

 Display display = new Display ();
 Shell shell = new Shell (display);
 Scale scale = new Scale (shell, SWT.BORDER);
 scale.setSize (200, 64);
 scale.setMaximum (40);
 scale.setPageIncrement (5);
 shell.open ();
 while (!shell.isDisposed ()) {
   if (!display.readAndDispatch ()) display.sleep ();
 }
 display.dispose ();

} }

      </source>
   
  
 
  

Scale Example

   <source lang="java">

/******************************************************************************

* All Right Reserved. 
* Copyright (c) 1998, 2004 Jackwind Li Guojie
* 
* Created on 2004-3-29 13:10:11 by JACK
* $Id$
* 
*****************************************************************************/

import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; 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.Scale; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; public class ScaleExample {

 Display display = new Display();
 Shell shell = new Shell(display);
 Scale scale;
 Text value;
 
 public ScaleExample() {
   shell.setLayout(new GridLayout(1, true));
   
   Label label = new Label(shell, SWT.NULL);
   label.setText("Volume:");
   
   scale = new Scale(shell, SWT.VERTICAL);
   scale.setBounds(0, 0, 40, 200);
   scale.setMaximum(20);
   scale.setMinimum(0);
   scale.setIncrement(1);
   scale.setPageIncrement(5);
   
   scale.addListener(SWT.Selection, new Listener() {
     public void handleEvent(Event event) {
       int perspectiveValue = scale.getMaximum() - scale.getSelection() + scale.getMinimum();
       value.setText("Vol: " + perspectiveValue);
     }
   });
   
   value = new Text(shell, SWT.BORDER | SWT.SINGLE);
   value.setEditable(false);
   scale.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
   value.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
   shell.pack();
   shell.open();
   //textUser.forceFocus();
   // Set up the event loop.
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) {
       // If no more entries in event queue
       display.sleep();
     }
   }
   display.dispose();
 }
 private void init() {
 }
 public static void main(String[] args) {
   new ScaleExample();
 }

}

      </source>
   
  
 
  

Scales

   <source lang="java">

/******************************************************************************

* All Right Reserved. 
* Copyright (c) 1998, 2004 Jackwind Li Guojie
* 
* Created on 2004-3-29 13:32:09 by JACK
* $Id$
* 
*****************************************************************************/

import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Scale; import org.eclipse.swt.widgets.Shell; public class Scales {

 Display display = new Display();
 Shell shell = new Shell(display);
 public Scales() {
   Scale scaleH = new Scale(shell, SWT.NULL);
   Scale scaleV = new Scale(shell, SWT.VERTICAL);
   
   scaleH.setBounds(0, 0, 100, 50);
   scaleV.setBounds(0, 50, 50, 100);
   
   System.out.println("Min: " + scaleH.getMinimum());
   System.out.println("Max: " + scaleH.getMaximum());
   shell.pack();
   shell.open();
   //textUser.forceFocus();
   // Set up the event loop.
   while (!shell.isDisposed()) {
     if (!display.readAndDispatch()) {
       // If no more entries in event queue
       display.sleep();
     }
   }
   display.dispose();
 }
 private void init() {
 }
 public static void main(String[] args) {
   new Scales();
 }

}

      </source>