/*******************************************************************************
* 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 org.eclipse.draw2d.geometry.Point;
/**
* Supports an anchor in the XY layout. This anchor exists independently without an owner.
*/
public class XYAnchor
extends ConnectionAnchorBase
{
private Point location;
/**
* Constructs an XYAnchor at the Point p.
*
* @param p the point where this anchor will be located
* @since 2.0
*/
public XYAnchor(Point p) {
location = new Point(p);
}
/**
* Returns the location of this anchor relative to the reference point given in as input.
* Since this is XY layout, the location of the point is independent of the reference
* point.
*
* @see ConnectionAnchor#getLocation(Point)
*/
public Point getLocation(Point reference) {
return location;
}
/**
* Returns <code>null</code> as these anchors inherently do not depend on other figures
* for their location.
*
* @see ConnectionAnchor#getOwner()
* @since 2.0
*/
public IFigure getOwner() {
return null;
}
/**
* Returns the point which is used as the reference by this connection anchor. In the case
* of the XYAnchor, this point is the same as its location.
*
* @see ConnectionAnchor#getReferencePoint()
*/
public Point getReferencePoint() {
return location;
}
/**
* Sets the location of this anchor and notifies all the listeners of the update.
*
* @param p the new location of this anchor
* @see #getLocation(Point)
* @since 2.0
*/
public void setLocation(Point p) {
location.setLocation(p);
fireAnchorMoved();
}
}