/*
* Copyright 2008-2012 Amazon Technologies, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://aws.amazon.com/apache2.0
*
* This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
* OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and
* limitations under the License.
*/
package com.amazonaws.eclipse.ec2.ui;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
/**
* A SwappableComposite allows only one of its children to be displayed at
* once. When one child is displayed, all the others are hidden.
*/
public class SwappableComposite extends Composite {
/**
* Creates a new SwappableComposite with the specified parent and SWT
* style.
*
* @param parent
* The parent of this composite.
* @param style
* The SWT style for this composite.
*/
public SwappableComposite(Composite parent, int style) {
super (parent, style);
}
/**
* Displays the specified composite and hides all other child
* composites.
*
* @param composite
* The child Composite to display.
*/
public void setActiveComposite(Control composite) {
if (composite == null) return;
for (Control control : getChildren()) {
if (composite.equals(control)) {
control.setVisible(true);
control.setBounds(getClientArea());
control.getParent().layout();
} else {
control.setVisible(false);
}
}
}
}