deletediagramelementcommand.java

来自「一个java写的business process management系统」· Java 代码 · 共 125 行

/*
 * Copyright (c) 2003, Alexander Greif
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Flow4J-Eclipse project nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.orthanc.flow4j.designer.model.commands;

import net.orthanc.flow4j.designer.core.Flow4JPlugin;
import net.orthanc.flow4j.designer.model.FlowDiagramElementModelPart;
import net.orthanc.flow4j.designer.model.FlowDiagramModelPart;

import org.eclipse.gef.commands.Command;

/**
 * @author agreif
 *
 * TODO
 * 
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class DeleteDiagramElementCommand extends Command {


	private FlowDiagramElementModelPart child;
	private FlowDiagramModelPart parent;
	private int index = -1;



	/**
	 * TODO
	 * 
	 */
	public DeleteDiagramElementCommand() {
		super(Flow4JPlugin.getResourceString("Command_Delete.label"));
	}

	/**
	 * TODO
	 * @param label
	 */
	public DeleteDiagramElementCommand(String label) {
		super(label);
		// TODO Auto-generated constructor stub
	}


	/**
	 * TODO
	 * @param c
	 */
	public void setChild (FlowDiagramElementModelPart c) {
		child = c;
	}

	/**
	 * TODO
	 * @param p
	 */
	public void setParent(FlowDiagramModelPart p) {
		parent = p;
	}



	/**
	 * @see org.eclipse.gef.commands.Command#execute()
	 */
	public void execute() {
		primExecute();
	}

	/**
	 * TODO
	 * 
	 */
	protected void primExecute() {
		index = parent.getChildren().indexOf(child);
		parent.removeChild(child);
	}

	/**
	 * @see org.eclipse.gef.commands.Command#redo()
	 */
	public void redo() {
		primExecute();
	}



	/**
	 * @see org.eclipse.gef.commands.Command#undo()
	 */
	public void undo() {
		parent.addChild(child, index);
	}


}