decisionflowleteditpart.java

一个java写的business process management系统

/*
 * 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.editparts;

import java.beans.PropertyChangeEvent;

import net.orthanc.flow4j.designer.editparts.policies.DecisionFlowletNodeEditPolicy;
import net.orthanc.flow4j.designer.editparts.policies.FlowletNodeEditPolicy;
import net.orthanc.flow4j.designer.figures.DecisionFlowletFigure;
import net.orthanc.flow4j.designer.figures.DecisionFlowletToolTipFigure;
import net.orthanc.flow4j.designer.figures.Flow4FigureFactory;
import net.orthanc.flow4j.designer.figures.FlowletLabelFigure;
import net.orthanc.flow4j.designer.model.DecisionFlowletModelPart;

import org.eclipse.draw2d.IFigure;

/**
 * @author greifa
 */
public class DecisionFlowletEditPart extends FlowletWithLabelEditPart {

	/**
	 * The toolTip figure that will be reused for flowlet figure creation.
	 */
	private DecisionFlowletToolTipFigure toolTip;

	/**
	 * Constructor.
	 * Sets the tooltip.
	 */
	public DecisionFlowletEditPart() {
		super();
		toolTip = new DecisionFlowletToolTipFigure(this);
	}

	/**
	 * @see org.eclipse.gef.editparts.AbstractGraphicalEditPart#createFigure()
	 */
	protected IFigure createFigure() {
		if (getModel() == null)
			return null;
		IFigure figure = Flow4FigureFactory.createDecisionFlowletFigure();
		figure.setToolTip(toolTip);
		
		return figure;
	}





	/**
	 * Returns the Figure for this as an OutputFigure.
	 * @return  Figure of this as a OutputFigure.
	 */
	protected DecisionFlowletFigure getDecisionFlowletFigure() {
		return (DecisionFlowletFigure)getFigure();
	}


	/**
	 * Returns the model of this as a DecisionFlowletModelPart.
	 * @return  Model of this as a DecisionFlowletModelPart.
	 */
	protected DecisionFlowletModelPart getDecisionFlowlet() {
		return (DecisionFlowletModelPart)getModel();
	}


	/**
	 * Returns a FlowletNodeEditPolicy that manages boolean type transitions
	 * thats source flowlet is a desicionFlowlet.
	 * @see net.orthanc.flow4j.designer.editparts.FlowletEditPart#createFlowletNodeEditPolicy()
	 */
	protected FlowletNodeEditPolicy createFlowletNodeEditPolicy() {
		return new DecisionFlowletNodeEditPolicy(this);
	}








	/**
	 * Reacts on a preoperty change event.
	 * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
	 */
	public void propertyChange(PropertyChangeEvent event) {
		String propName = event.getPropertyName();
		if (DecisionFlowletModelPart.PROP_DECISION_DESCRIPTION.equals(propName)) {
//			String decision = (String) event.getNewValue();
			getFlowletLabelEditPart().adjustFlowletLabelFigure((FlowletLabelFigure)getFlowletLabelEditPart().getFigure());
		} else
			super.propertyChange(event);
	}










}