DiagramHelper.java

/**
 * Copyright (c) 2010
 * Signavio, Sven Wagner-Boysen
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package de.hpi.bpmn2_0.util;

import java.util.ArrayList;
import java.util.List;

import org.oryxeditor.server.diagram.Bounds;
import org.oryxeditor.server.diagram.Point;
import org.oryxeditor.server.diagram.generic.GenericDiagram;
import org.oryxeditor.server.diagram.generic.GenericEdge;
import org.oryxeditor.server.diagram.generic.GenericShape;

/**
 * @author Sven Wagner-Boysen
 * 
 */
public class DiagramHelper {

	@Deprecated
	public static Bounds getAbsoluteBounds(GenericShape shape) {
		/* Handle invalid diagram and prevent from crashing the transformation */
		if (shape.getBounds() == null) {
			Bounds bounds = new Bounds(new Point(0.0, 0.0), new Point(0.0, 0.0));
			return bounds;
		}
		// clone bounds
		Bounds bounds = cloneBounds(shape.getBounds());

		GenericShape parent = shape.getParent();

		if (parent != null) {
			Bounds parentBounds = getAbsoluteBounds(parent);
			setBounds(bounds, parentBounds.getUpperLeft().getX().doubleValue(),
					parentBounds.getUpperLeft().getY().doubleValue());
		}

		return bounds;
	}

	
	public static List<GenericEdge> getOutgoingEdges(GenericShape<?,?> shape){
		List<GenericEdge> list = new ArrayList<GenericEdge>();
		for (GenericShape outgoing: shape.getOutgoingsReadOnly()){
			if (outgoing instanceof GenericEdge)
				list.add((GenericEdge)outgoing);
		}
		return list;
	}
	
	
	public static List<GenericEdge> getIncomingEdges(GenericShape<?,?> shape){
		List<GenericEdge> list = new ArrayList<GenericEdge>();
		for (GenericShape incoming: shape.getIncomingsReadOnly()){
			if (incoming instanceof GenericEdge)
				list.add((GenericEdge)incoming);
		}
		return list;
	}
	
	
	public static List<GenericEdge> getAllEdges(GenericDiagram<?,?> diagram){
		List<GenericEdge> list = new ArrayList<GenericEdge>();
		for (GenericShape shape: diagram.getAllShapesReadOnly()){
			if (shape instanceof GenericEdge)
				list.add((GenericEdge)shape);
		}
		return list;
	}
	
	
	public static double calculateCenterDistance(
			de.hpi.bpmn2_0.model.bpmndi.dc.Bounds b1,
			de.hpi.bpmn2_0.model.bpmndi.dc.Bounds b2) {

		de.hpi.bpmn2_0.model.bpmndi.dc.Point b1Center = new de.hpi.bpmn2_0.model.bpmndi.dc.Point();
		b1Center.setX(b1.getX() + b1.getWidth() / 2.0);
		b1Center.setY(b1.getY() + b1.getHeight() / 2.0);

		de.hpi.bpmn2_0.model.bpmndi.dc.Point b2Center = new de.hpi.bpmn2_0.model.bpmndi.dc.Point();
		b2Center.setX(b2.getX() + b2.getWidth() / 2.0);
		b2Center.setY(b2.getY() + b2.getHeight() / 2.0);

		return Math.sqrt(Math.pow(b1Center.getX() - b2Center.getX(), 2.0)
				+ Math.pow(b1Center.getY() - b2Center.getY(), 2.0));
	}

	@Deprecated
	private static Bounds cloneBounds(Bounds bounds) {
		double lrx = (bounds.getLowerRight().getX() != null ? bounds
				.getLowerRight().getX() : 0.0);
		double lry = (bounds.getLowerRight().getY() != null ? bounds
				.getLowerRight().getY() : 0.0);
		double ulx = (bounds.getUpperLeft().getX() != null ? bounds
				.getUpperLeft().getX() : 0.0);
		double uly = (bounds.getUpperLeft().getY() != null ? bounds
				.getUpperLeft().getY() : 0.0);

		return new Bounds(new Point(lrx, lry), new Point(ulx, uly));
	}

	@Deprecated
	private static void setBounds(Bounds bounds, double offsetX, double offsetY) {
		Point ul = bounds.getUpperLeft();
		ul.setX(ul.getX() + offsetX);
		ul.setY(ul.getY() + offsetY);
		Point lr = bounds.getLowerRight();
		lr.setX(lr.getX() + offsetX);
		lr.setY(lr.getY() + offsetY);
	}

}