/*******************************************************************************
* Copyright (c) 2010 Oak Ridge National Laboratory.
* 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
******************************************************************************/
package org.csstudio.swt.xygraph.undo;
import org.csstudio.swt.xygraph.figures.Annotation;
/**The command moving an annotation label.
* @author Xihui Chen
*
*/
public class MovingAnnotationLabelCommand implements IUndoableCommand {
private Annotation annotation;
private double beforeDx, beforeDy, afterDx, afterDy;
public MovingAnnotationLabelCommand(Annotation annotation) {
this.annotation = annotation;
}
public void redo() {
annotation.setdxdy(afterDx, afterDy);
}
public void undo() {
annotation.setdxdy(beforeDx, beforeDy);
}
public void setBeforeMovingDxDy(double dx, double dy){
beforeDx = dx;
beforeDy = dy;
}
public void setAfterMovingDxDy(double dx, double dy){
afterDx = dx;
afterDy = dy;
}
@Override
public String toString() {
return "Move Annotation Label";
}
}