1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.diagram.synchronization.graph;
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14 import java.util.Collection;
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15 import java.util.Iterator;
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17 import org.simantics.db.Resource;
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18 import org.simantics.db.WriteGraph;
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19 import org.simantics.db.exception.DatabaseException;
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20 import org.simantics.diagram.content.ConnectionUtil;
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21 import org.simantics.diagram.stubs.DiagramResource;
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22 import org.simantics.diagram.synchronization.ModificationAdapter;
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23 import org.simantics.g2d.element.ElementHints;
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24 import org.simantics.g2d.element.IElement;
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27 * @author Tuukka Lehtonen
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29 public class RemoveBranchpoint extends ModificationAdapter {
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33 public RemoveBranchpoint(IElement element) {
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34 super(REMOVE_BRANCH_PRIORITY);
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35 this.element = element.getHint(ElementHints.KEY_OBJECT);
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36 assert element != null;
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40 public void perform(WriteGraph g) throws DatabaseException {
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41 DiagramResource dr = DiagramResource.getInstance(g);
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42 Collection<Resource> connectors = g.getObjects(element, dr.AreConnected);
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44 ConnectionUtil cu = new ConnectionUtil(g);
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45 cu.removeConnectionPart(element);
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47 // If this *was* a route point, reconnect the connectors previously
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48 // connected to the route point. Otherwise just leave it.
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49 if (connectors.size() == 2) {
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50 Iterator<Resource> it = connectors.iterator();
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51 Resource c1 = it.next();
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52 Resource c2 = it.next();
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