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.g2d.diagram.impl;
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14 import java.util.HashMap;
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15 import java.util.Map;
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17 import org.simantics.g2d.diagram.DiagramMutator;
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18 import org.simantics.g2d.diagram.IDiagram;
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19 import org.simantics.g2d.diagram.handler.ElementFactory;
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20 import org.simantics.g2d.element.ElementClass;
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21 import org.simantics.g2d.element.ElementClassProviders;
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22 import org.simantics.g2d.element.ElementClasses;
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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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25 import org.simantics.g2d.element.IElementClassProvider;
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26 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
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27 import org.simantics.g2d.element.impl.Element;
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28 import org.simantics.g2d.elementclass.FlagClass;
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29 import org.simantics.g2d.elementclass.connection.ConnectionClass;
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30 import org.simantics.utils.datastructures.cache.ProvisionException;
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33 * Diagrams manipulation requires a DiagramMutator. This one works without any
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36 * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
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37 * @author Tuukka Lehtonen
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39 public class DummyDiagramMutator implements DiagramMutator {
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41 public static final IElementClassProvider DEFAULT_PROVIDER = ElementClassProviders.mappedProvider(
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42 ElementClasses.CONNECTION, ConnectionClass.CLASS.newClassWith(new StaticObjectAdapter(new Object())),
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43 ElementClasses.FLAG, FlagClass.FLAGCLASS.newClassWith(new StaticObjectAdapter(new Object()))
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46 IElementClassProvider classProvider;
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48 private final Map<IElement, Object> map = new HashMap<IElement, Object>();
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50 private final IDiagram diagram;
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52 public DummyDiagramMutator(IDiagram diagram) {
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53 this(diagram, DEFAULT_PROVIDER);
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56 public DummyDiagramMutator(IDiagram diagram, IElementClassProvider classProvider) {
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57 this.diagram = diagram;
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58 this.classProvider = classProvider;
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60 ensureClassProvision(ElementClasses.CONNECTION);
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61 ensureClassProvision(ElementClasses.FLAG);
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64 private void ensureClassProvision(Object key) {
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65 ElementClass ec = classProvider.get(key);
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67 throw new ProvisionException();
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71 public void synchronizeHintsToBackend(IElement element) {
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72 // No backend, nothing to synchronize
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76 public void synchronizeElementOrder() {
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77 // No backend, nothing to synchronize
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81 public void register(IElement element, Object object) {
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82 // No point in registering anything.
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83 map.put(element, object);
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86 private IElement spawn(ElementClass clazz) {
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87 ElementFactory ef = diagram.getDiagramClass().getAtMostOneItemOfClass(ElementFactory.class);
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89 return ef.spawnNew(clazz);
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90 return Element.spawnNew(clazz);
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94 public IElement newElement(ElementClass clazz) {
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95 IElement element = spawn(clazz);
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96 element.setHint(ElementHints.KEY_OBJECT, new Object());
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101 public void modifyTransform(IElement element) {
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105 public void commit() {
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110 public void clear() {
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114 @SuppressWarnings("unchecked")
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116 public <T> T backendObject(IElement element) {
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117 return (T) map.get(element);
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