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Compute Widget Size

import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class WidgetSizeCompute {   public static void main(String[] args) {     final Display display = new Display();     Shell shell = new Shell(display);     shell.setLayout(new GridLayout());     Button button = new Button(shell, SWT.PUSH | SWT.LEFT);     button.setText("Button");     System.out.println("Bounds: " + button.getBounds());     System.out.println("computeSize: " + button.computeSize(100, SWT.DEFAULT));     System.out.println("computeSize: " + button.computeSize(40, SWT.DEFAULT));     System.out.println("computeSize: " + button.computeSize(SWT.DEFAULT, 100));     System.out.println("computeSize: " + button.computeSize(SWT.DEFAULT, 20));     System.out.println("computeSize: " + button.computeSize(SWT.DEFAULT, 15));     System.out.println("computeSize: " + button.computeSize(100, 200));     System.out.println("computeSize: " + button.computeSize(SWT.DEFAULT, SWT.DEFAULT));     shell.open();     while (!shell.isDisposed()) {       if (!display.readAndDispatch()) {         display.sleep();       }     }   } }