pushPanel.add(normalPushButton);
// Add a disabled PushButton
PushButton disabledPushButton = new PushButton(
new Image(Showcase.images.gwtLogo()));
disabledPushButton.ensureDebugId("cwCustomButton-push-disabled");
disabledPushButton.setEnabled(false);
pushPanel.add(disabledPushButton);
// Add a normal ToggleButton
ToggleButton normalToggleButton = new ToggleButton(