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.adapter;
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14 import gnu.trove.map.hash.TObjectIntHashMap;
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16 import java.util.ArrayList;
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17 import java.util.Collections;
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18 import java.util.Comparator;
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19 import java.util.List;
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20 import java.util.concurrent.atomic.AtomicInteger;
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22 import org.simantics.db.AsyncReadGraph;
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23 import org.simantics.db.Resource;
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24 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
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25 import org.simantics.db.common.procedure.guarded.GuardedAsyncProcedureWrapper;
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26 import org.simantics.db.procedure.AsyncMultiProcedure;
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27 import org.simantics.db.procedure.AsyncProcedure;
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28 import org.simantics.diagram.synchronization.SynchronizationHints;
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29 import org.simantics.diagram.synchronization.graph.TransformSynchronizer;
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30 import org.simantics.g2d.canvas.ICanvasContext;
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31 import org.simantics.g2d.diagram.IDiagram;
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32 import org.simantics.g2d.element.ElementClass;
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33 import org.simantics.g2d.element.ElementHints;
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34 import org.simantics.g2d.element.IElement;
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35 import org.simantics.g2d.element.handler.impl.DefaultTransform;
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36 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
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37 import org.simantics.g2d.element.handler.impl.StaticSymbolImageInitializer;
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38 import org.simantics.g2d.element.handler.impl.StaticSymbolImpl;
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39 import org.simantics.g2d.element.handler.impl.TextImpl;
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40 import org.simantics.g2d.elementclass.ImageClass;
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41 import org.simantics.g2d.image.DefaultImages;
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42 import org.simantics.g2d.image.Image;
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44 public class CompositeClassFactory extends ElementFactoryAdapter {
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46 private static final StaticSymbolImpl STATIC_SYMBOL = new StaticSymbolImpl(DefaultImages.COMPOSITION.get());
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48 private static ElementClass build(Resource elementType) {
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49 String id = "Composite: " + elementType.getResourceId();
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50 return ElementClass.compile(
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52 new StaticObjectAdapter(elementType),
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53 DefaultTransform.INSTANCE,
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54 StaticSymbolImageInitializer.INSTANCE,
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56 ImageClass.ImageElementHandler.INSTANCE)
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61 public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType,
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62 AsyncProcedure<ElementClass> procedure) {
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63 procedure.execute(graph, build(elementType));
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67 public void load(AsyncReadGraph graph, final ICanvasContext canvas, final IDiagram diagram, final Resource element, final IElement e, AsyncProcedure<IElement> procedure) {
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68 final GuardedAsyncProcedureWrapper<IElement> guard = new GuardedAsyncProcedureWrapper<IElement>(procedure, 1);
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70 e.setHint(SynchronizationHints.HINT_SYNCHRONIZER, TransformSynchronizer.INSTANCE);
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72 final List<IElement> elements = new ArrayList<IElement>();
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73 final TObjectIntHashMap<IElement> elementOrderMap = new TObjectIntHashMap<IElement>();
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75 final AtomicInteger ready = new AtomicInteger(1);
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76 final AtomicInteger indexCounter = new AtomicInteger(0);
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78 graph.forOrderedSet(element, new AsyncMultiProcedure<Resource>() {
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81 public void exception(AsyncReadGraph graph, Throwable throwable) {
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82 guard.exception(graph, throwable);
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86 public void execute(AsyncReadGraph graph, Resource r) {
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88 ready.incrementAndGet();
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89 final int childIndex = indexCounter.getAndIncrement();
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91 graph.asyncRequest(new NodeRequest(canvas, diagram, r, null), new TransientCacheAsyncListener<IElement>() {
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94 public void exception(AsyncReadGraph graph, Throwable throwable) {
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95 guard.exception(graph, throwable);
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99 public void execute(AsyncReadGraph graph, IElement child) {
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100 elementReady(graph, child, childIndex);
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107 public void finished(AsyncReadGraph graph) {
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108 elementReady(graph, null, -1);
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111 void elementReady(AsyncReadGraph graph, IElement child, int index) {
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112 if (child != null) {
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113 synchronized (elements) {
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114 elements.add(child);
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115 elementOrderMap.put(child, index);
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118 if (ready.decrementAndGet() == 0) {
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119 // Children ready, sort them and go!
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120 Collections.sort(elements, new Comparator<IElement>() {
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122 public int compare(IElement o1, IElement o2) {
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123 int thisVal = elementOrderMap.get(o1);
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124 int anotherVal = elementOrderMap.get(o2);
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125 return (thisVal < anotherVal ? -1 : (thisVal == anotherVal ? 0 : 1));
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129 Image img = new CompositeImage(elements);
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130 e.setHint(ElementHints.KEY_IMAGE, img);
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132 guard.execute(graph, e);
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