1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.diagram.adapter;
14 import gnu.trove.map.hash.TObjectIntHashMap;
16 import java.util.ArrayList;
17 import java.util.Collections;
18 import java.util.Comparator;
19 import java.util.List;
20 import java.util.concurrent.atomic.AtomicInteger;
22 import org.simantics.db.AsyncReadGraph;
23 import org.simantics.db.Resource;
24 import org.simantics.db.common.procedure.adapter.TransientCacheAsyncListener;
25 import org.simantics.db.common.procedure.guarded.GuardedAsyncProcedureWrapper;
26 import org.simantics.db.procedure.AsyncMultiProcedure;
27 import org.simantics.db.procedure.AsyncProcedure;
28 import org.simantics.diagram.synchronization.SynchronizationHints;
29 import org.simantics.diagram.synchronization.graph.TransformSynchronizer;
30 import org.simantics.g2d.canvas.ICanvasContext;
31 import org.simantics.g2d.diagram.IDiagram;
32 import org.simantics.g2d.element.ElementClass;
33 import org.simantics.g2d.element.ElementHints;
34 import org.simantics.g2d.element.IElement;
35 import org.simantics.g2d.element.handler.impl.DefaultTransform;
36 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
37 import org.simantics.g2d.element.handler.impl.StaticSymbolImageInitializer;
38 import org.simantics.g2d.element.handler.impl.StaticSymbolImpl;
39 import org.simantics.g2d.element.handler.impl.TextImpl;
40 import org.simantics.g2d.elementclass.ImageClass;
41 import org.simantics.g2d.image.DefaultImages;
42 import org.simantics.g2d.image.Image;
44 public class CompositeClassFactory extends ElementFactoryAdapter {
46 private static final StaticSymbolImpl STATIC_SYMBOL = new StaticSymbolImpl(DefaultImages.COMPOSITION.get());
48 private static ElementClass build(Resource elementType) {
49 String id = "Composite: " + elementType.getResourceId();
50 return ElementClass.compile(
52 new StaticObjectAdapter(elementType),
53 DefaultTransform.INSTANCE,
54 StaticSymbolImageInitializer.INSTANCE,
56 ImageClass.ImageElementHandler.INSTANCE)
61 public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType,
62 AsyncProcedure<ElementClass> procedure) {
63 procedure.execute(graph, build(elementType));
67 public void load(AsyncReadGraph graph, final ICanvasContext canvas, final IDiagram diagram, final Resource element, final IElement e, AsyncProcedure<IElement> procedure) {
68 final GuardedAsyncProcedureWrapper<IElement> guard = new GuardedAsyncProcedureWrapper<IElement>(procedure, 1);
70 e.setHint(SynchronizationHints.HINT_SYNCHRONIZER, TransformSynchronizer.INSTANCE);
72 final List<IElement> elements = new ArrayList<IElement>();
73 final TObjectIntHashMap<IElement> elementOrderMap = new TObjectIntHashMap<IElement>();
75 final AtomicInteger ready = new AtomicInteger(1);
76 final AtomicInteger indexCounter = new AtomicInteger(0);
78 graph.forOrderedSet(element, new AsyncMultiProcedure<Resource>() {
81 public void exception(AsyncReadGraph graph, Throwable throwable) {
82 guard.exception(graph, throwable);
86 public void execute(AsyncReadGraph graph, Resource r) {
88 ready.incrementAndGet();
89 final int childIndex = indexCounter.getAndIncrement();
91 graph.asyncRequest(new NodeRequest(canvas, diagram, r, null), new TransientCacheAsyncListener<IElement>() {
94 public void exception(AsyncReadGraph graph, Throwable throwable) {
95 guard.exception(graph, throwable);
99 public void execute(AsyncReadGraph graph, IElement child) {
100 elementReady(graph, child, childIndex);
107 public void finished(AsyncReadGraph graph) {
108 elementReady(graph, null, -1);
111 void elementReady(AsyncReadGraph graph, IElement child, int index) {
113 synchronized (elements) {
115 elementOrderMap.put(child, index);
118 if (ready.decrementAndGet() == 0) {
119 // Children ready, sort them and go!
120 Collections.sort(elements, new Comparator<IElement>() {
122 public int compare(IElement o1, IElement o2) {
123 int thisVal = elementOrderMap.get(o1);
124 int anotherVal = elementOrderMap.get(o2);
125 return (thisVal < anotherVal ? -1 : (thisVal == anotherVal ? 0 : 1));
129 Image img = new CompositeImage(elements);
130 e.setHint(ElementHints.KEY_IMAGE, img);
132 guard.execute(graph, e);