FreeformLayer.java

/*******************************************************************************
 * Copyright (c) 2000, 2005 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.draw2d;

import java.util.Iterator;

import org.eclipse.draw2d.geometry.Rectangle;

/**
 * A Layer that can extend in all 4 directions.
 */
public class FreeformLayer
	extends Layer
	implements FreeformFigure
{

private FreeformHelper helper = new FreeformHelper(this);

/**
 * @see IFigure#add(IFigure, Object, int)
 */
public void add(IFigure child, Object constraint, int index) {
	super.add(child, constraint, index);
	helper.hookChild(child);
}

/**
 * @see FreeformFigure#addFreeformListener(FreeformListener)
 */
public void addFreeformListener(FreeformListener listener) {
	addListener(FreeformListener.class, listener);
}

/**
 * @see FreeformFigure#fireExtentChanged()
 */
public void fireExtentChanged() {
	Iterator iter = getListeners(FreeformListener.class);
	while (iter.hasNext())
		((FreeformListener)iter.next())
			.notifyFreeformExtentChanged();
}

/**
 * Overrides to do nothing.
 * @see Figure#fireMoved()
 */
protected void fireMoved() { }

/**
 * @see FreeformFigure#getFreeformExtent()
 */
public Rectangle getFreeformExtent() {
	return helper.getFreeformExtent();
}

/**
 * @see Figure#primTranslate(int, int)
 */
public void primTranslate(int dx, int dy) {
	bounds.x += dx;
	bounds.y += dy;
}

/**
 * @see IFigure#remove(IFigure)
 */
public void remove(IFigure child) {
	helper.unhookChild(child);
	super.remove(child);
}

/**
 * @see FreeformFigure#removeFreeformListener(FreeformListener)
 */
public void removeFreeformListener(FreeformListener listener) {
	removeListener(FreeformListener.class, listener);
}

/**
 * @see FreeformFigure#setFreeformBounds(Rectangle)
 */
public void setFreeformBounds(Rectangle bounds) {
	helper.setFreeformBounds(bounds);
}

}