decisionflowlettooltipfigure.java

一个java写的business process management系统

/*
 * Copyright (c) 2003-2004, 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.figures;

import net.orthanc.flow4j.designer.editparts.DecisionFlowletEditPart;
import net.orthanc.flow4j.designer.editparts.IFlow4JToolTip;
import net.orthanc.flow4j.designer.model.DecisionFlowletModelPart;

import org.eclipse.draw2d.FlowLayout;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.Panel;

/**
 * The Decision Flowlet's tooltip figure which presents the flowlet's if statement
 * @author greifa
 */
public class DecisionFlowletToolTipFigure
	extends Panel
	implements IFlow4JToolTip {

	static final public String TOOLTIP_PROP_STATEMENT =
		"tooltip_decisionflowlet_statement";

	private DecisionFlowletEditPart decisionFlowletEditPart;
	private Label statementLabel = new Label();

	/**
	 * Constructor. Creates all the panels and sets the layout
	 */
	public DecisionFlowletToolTipFigure(DecisionFlowletEditPart decisionFlowletEditPart) {
		super();
		this.decisionFlowletEditPart = decisionFlowletEditPart;

		Panel statementPanel = new Panel();
		statementPanel.add(statementLabel);
		FlowLayout lay1 = new FlowLayout(false);
		lay1.setMinorSpacing(0);
		statementPanel.setLayoutManager(lay1);
		add(statementPanel);

		FlowLayout lay3 = new FlowLayout(false);
		lay3.setMinorSpacing(0);
		setLayoutManager(lay3);
	}

	/* Updates the tooltips specified part.
	 * @see net.orthanc.flow4j.designer.editparts.IFlow4JToolTip#update(java.lang.String, java.lang.Object)
	 */
	public void update(String key, Object value) {
		if (TOOLTIP_PROP_STATEMENT.equals(key)) {
			String statement = (String) value;
			statementLabel.setText(statement);
		}
	}

	/**
	 * Updates the tooltip's contents and repaints the figure.
	 * @see org.eclipse.draw2d.IFigure#repaint()
	 */
	public void repaint() {
		updateContents();
		super.repaint();
	}
	/**
	 * Updates the tollbox's contents.
	 *
	 */
	private void updateContents() {
		DecisionFlowletModelPart decisionFlowletModelPart =
			(DecisionFlowletModelPart) decisionFlowletEditPart.getModel();

		//	update statement
		updateStatement(decisionFlowletModelPart);
	}

	/**
	 * Updates the statement
	 * @param decisionFlowletModelPart
	 */
	private void updateStatement(DecisionFlowletModelPart decisionFlowletModelPart) {
		statementLabel.setText(
			decisionFlowletModelPart.getFlowletLabel().getText());
	}

}