SWT(JFace)体验之FillLayout布局

package swt_jface.demo2;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class FillLayoutSample {

Display display = new Display();
Shell shell = new Shell(display);
public FillLayoutSample() {

FillLayout fillLayout = new FillLayout(SWT.VERTICAL);
fillLayout.marginHeight = 5;
fillLayout.marginWidth = 5;
fillLayout.spacing = 1;

shell.setLayout(fillLayout);

Button button1 = new Button(shell, SWT.PUSH);
button1.setText("button1");

Button button2 = new Button(shell, SWT.PUSH);
button2.setText("button number 2");

Button button3 = new Button(shell, SWT.PUSH);
button3.setText("3");
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}

public static void main(String[] args) {
new FillLayoutSample();
}
}