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/*******************************************************************************
* Copyright (c) 2004, 2005 Sybase, Inc. 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:
* Sybase, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsf.facesconfig.ui.pageflow.command;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.commands.Command;
import org.eclipse.jst.jsf.facesconfig.ui.pageflow.model.PageflowElement;
/**
* This is the SetConstraint command for XY layout edit policy
*
*/
public class SetConstraintCommand extends Command {
/** location command label */
private static final String COMMAND_LABEL_LOCATION = "change location command";
/** resize command label */
private static final String COMMAND_LABEL_RESIZE = "resize command";
/** new position */
private Point newPos;
/** new size */
private Dimension newSize;
/** olde position */
private Point oldPos;
/** old size */
private Dimension oldSize;
/** pageflow element */
private PageflowElement part;
/*
* (non-Javadoc)
*
* @see Command#execute()
*/
public void execute() {
oldSize = new Dimension(part.getWidth(), part.getHeight());
oldPos = new Point(part.getX(), part.getY());
part.setX(newPos.x);
part.setY(newPos.y);
part.setHeight(newSize.height);
part.setWidth(newSize.width);
}
/*
* (non-Javadoc)
*
* @see Command#redo()
*/
public void redo() {
part.setX(newPos.x);
part.setY(newPos.y);
part.setHeight(newSize.height);
part.setWidth(newSize.width);
}
/*
* (non-Javadoc)
*
* @see Command#undo()
*/
public void undo() {
part.setX(oldPos.x);
part.setY(oldPos.y);
part.setHeight(oldSize.height);
part.setWidth(oldSize.width);
}
/**
* return the label of the constaints
*/
public String getLabel() {
if (oldSize.equals(newSize)) {
return COMMAND_LABEL_LOCATION;
}
return COMMAND_LABEL_RESIZE;
}
/**
* set the new location using rectangle
*
* @param r -
* new location
*/
public void setLocation(Rectangle r) {
setLocation(r.getLocation());
setSize(r.getSize());
}
/**
* set the new location using point
*
* @param p -
* new location point
*/
public void setLocation(Point p) {
newPos = p;
}
/**
* set the pageflow element
*
* @param part -
* pageflow element
*/
public void setPart(PageflowElement part) {
this.part = part;
}
/**
* set the new size
*
* @param p -
* new size
*/
public void setSize(Dimension p) {
newSize = p;
}
}
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