import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StackLayout; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell;
public class StackLayoutSample {
Display display = new Display(); Shell shell = new Shell(display); final Button[] buttons = new Button[3];
public StackLayoutSample() { final StackLayout stackLayout = new StackLayout(); shell.setLayout(stackLayout);
for(int i=0; i<buttons.length; i++) { buttons[i] = new Button(shell, SWT.NULL); buttons[i].setText("Button #" + i); buttons[i].addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { // Flip to next button. Button nextButton = null; for(int i=0; i<buttons.length; i++) { if(buttons[i] == e.widget) { if(i == buttons.length - 1) nextButton = buttons[0]; else nextButton = buttons[i+1]; } } stackLayout.topControl = nextButton; shell.layout(); }
public void widgetDefaultSelected(SelectionEvent e) { } }); } // Initial stackLayout.topControl = buttons[0];
shell.setSize(200, 100); shell.open();
// 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 StackLayoutSample(); }
} 说明:用Eclipse调试时,把mum.gif,rank.gif 放到主工程目录下
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