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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.gef.handles;
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import org.eclipse.swt.graphics.Cursor;
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import org.eclipse.draw2d.Cursors;
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import org.eclipse.draw2d.Locator;
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import org.eclipse.gef.DragTracker;
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import org.eclipse.gef.GraphicalEditPart;
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import org.eclipse.gef.tools.ResizeTracker;
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/**
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* A Handle used to resize a GraphicalEditPart.
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*/
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public class ResizeHandle extends SquareHandle {
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private int cursorDirection = 0;
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/**
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* Creates a new ResizeHandle for the given GraphicalEditPart.
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* <code>direction</code> is the relative direction from the center of the
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* owner figure. For example, <code>SOUTH_EAST</code> would place the handle
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* in the lower-right corner of its owner figure. These direction constants
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* can be found in {@link org.eclipse.draw2d.PositionConstants}.
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*
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* @param owner
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* owner of the ResizeHandle
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* @param direction
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* relative direction from the center of the owner figure
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*/
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public ResizeHandle(GraphicalEditPart owner, int direction) {
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setOwner(owner);
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setLocator(new RelativeHandleLocator(owner.getFigure(), direction));
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setCursor(Cursors.getDirectionalCursor(direction, owner.getFigure()
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.isMirrored()));
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cursorDirection = direction;
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}
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/**
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* Creates a new ResizeHandle for the given GraphicalEditPart.
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*
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* @see SquareHandle#SquareHandle(GraphicalEditPart, Locator, Cursor)
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*/
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public ResizeHandle(GraphicalEditPart owner, Locator loc, Cursor c) {
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super(owner, loc, c);
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}
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/**
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* Returns <code>null</code> for the DragTracker.
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*
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* @return returns <code>null</code>
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*/
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protected DragTracker createDragTracker() {
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return new ResizeTracker(getOwner(), cursorDirection);
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}
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}
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