/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.gef.tool;
import org.eclipse.draw2d.geometry.Point;
import org.xmind.gef.event.MouseDragEvent;
import org.xmind.gef.part.IGraphicalEditPart;
/**
* @author Brian Sun
* @version 2005
*/
public abstract class MoveTool extends DraggingTool implements ISourceTool {
private IGraphicalEditPart source = null;
public IGraphicalEditPart getSource() {
return source;
}
public void setSource(IGraphicalEditPart source) {
this.source = source;
}
protected boolean handleMouseDrag(MouseDragEvent me) {
if (source == null && me.source instanceof IGraphicalEditPart) {
source = (IGraphicalEditPart) me.source;
}
return super.handleMouseDrag(me);
}
protected void end() {
source = null;
}
/**
* @see org.xmind.gef.tool.DraggingTool#onDragging(org.eclipse.draw2d.geometry.Point,
* MouseDragEvent)
*/
@Override
protected void onDragging(Point cursorPosition, MouseDragEvent me) {
ensureDragPositionVisible(cursorPosition, me);
onMoving(cursorPosition, me);
}
protected abstract void onMoving(Point currentPos, MouseDragEvent me);
}