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