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/*******************************************************************************
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* Copyright (c) 2000, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package org.eclipse.draw2d;
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import org.eclipse.draw2d.geometry.Point;
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/**
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* Supports an anchor in the XY layout. This anchor exists independently without
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* an owner.
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*/
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public class XYAnchor extends ConnectionAnchorBase {
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private Point location;
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/**
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* Constructs an XYAnchor at the Point p.
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*
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* @param p
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* the point where this anchor will be located
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* @since 2.0
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*/
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public XYAnchor(Point p) {
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location = new Point(p);
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}
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/**
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* Returns the location of this anchor relative to the reference point given
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* in as input. Since this is XY layout, the location of the point is
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* independent of the reference point.
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*
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* @see ConnectionAnchor#getLocation(Point)
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*/
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public Point getLocation(Point reference) {
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return location;
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}
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/**
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* Returns <code>null</code> as these anchors inherently do not depend on
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* other figures for their location.
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*
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* @see ConnectionAnchor#getOwner()
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* @since 2.0
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*/
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public IFigure getOwner() {
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return null;
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}
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/**
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* Returns the point which is used as the reference by this connection
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* anchor. In the case of the XYAnchor, this point is the same as its
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* location.
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*
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* @see ConnectionAnchor#getReferencePoint()
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*/
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public Point getReferencePoint() {
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return location;
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}
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/**
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* Sets the location of this anchor and notifies all the listeners of the
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* update.
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*
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* @param p
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* the new location of this anchor
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* @see #getLocation(Point)
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* @since 2.0
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*/
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public void setLocation(Point p) {
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location.setLocation(p);
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fireAnchorMoved();
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}
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}
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