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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
 */

package org.apache.tuscany.sca.impl.artifacts;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public abstract class WireArtifact {
		
	public abstract Element addElement(Document document, String svgNs, 
			Object a, Object b, int changingFactor, String color); 
	
	public Element setWireAttributes(int x1, int y1, int x2, int y2, 
			Element polyline, int changingFactor, String color){
				
		if(y1 == y2 && x2>x1){
			polyline.setAttributeNS(null, "points", x1+","+
					y1+" "+x2+","+y2
			);
		}
		else if(y1 == y2 && x1>x2){
			polyline.setAttributeNS(null, "points", x1+","+
					y1+" "+(x1+changingFactor)+","+y1
					+" "+(x1+changingFactor)+","+(y1-(changingFactor*2))
					+" "+(x2-changingFactor)+","+(y1-(changingFactor*2))
					+" "+(x2-changingFactor)+","+(y1)
					+" "+(x2)+","+(y1)
			);
			
		}
		else{
			polyline.setAttributeNS(null, "points", x1+","+
					y1+" "+(x1+changingFactor)+","+y1
					+" "+(x1+changingFactor)+","+y2
					+" "+x2+","+y2
			);
		}
		
		polyline.setAttributeNS(null, "stroke", color);
		polyline.setAttributeNS(null, "stroke-width", "2");
		polyline.setAttributeNS(null, "fill", "none");
		
		return polyline;
	}


}