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 java.awt.geom.AffineTransform;
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16 import org.simantics.databoard.Bindings;
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17 import org.simantics.db.AsyncReadGraph;
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18 import org.simantics.db.Resource;
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19 import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
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20 import org.simantics.db.procedure.AsyncProcedure;
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21 import org.simantics.diagram.stubs.G2DResource;
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22 import org.simantics.diagram.synchronization.ErrorHandler;
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23 import org.simantics.diagram.synchronization.ISynchronizationContext;
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24 import org.simantics.diagram.synchronization.SynchronizationHints;
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25 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
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26 import org.simantics.diagram.synchronization.graph.GraphSynchronizationHints;
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27 import org.simantics.diagram.synchronization.graph.layer.GraphLayerManager;
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28 import org.simantics.g2d.diagram.DiagramHints;
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29 import org.simantics.g2d.diagram.IDiagram;
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30 import org.simantics.g2d.element.ElementUtils;
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31 import org.simantics.g2d.element.IElement;
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32 import org.simantics.g2d.layers.ILayersEditor;
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33 import org.simantics.utils.datastructures.hints.IHintContext.Key;
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35 public class ElementFactoryUtil {
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37 public static void readTransform(AsyncReadGraph graph, final Resource resource, final IElement e) {
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38 readTransform(graph, resource, e, new AsyncProcedureAdapter<IElement>() {
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40 public void exception(AsyncReadGraph graph, Throwable t) {
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41 // Nowhere to log properly.
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42 t.printStackTrace();
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47 public static void readTransform(AsyncReadGraph graph, final Resource resource, final IElement e, final AsyncProcedure<IElement> procedure) {
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48 G2DResource G2D = graph.getService(G2DResource.class);
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49 graph.forPossibleRelatedValue(resource, G2D.HasTransform, Bindings.DOUBLE_ARRAY, new AsyncProcedure<double[]>() {
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51 public void exception(AsyncReadGraph graph, Throwable throwable) {
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52 procedure.exception(graph, throwable);
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56 public void execute(AsyncReadGraph graph, double[] mat) {
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57 mat = DiagramGraphUtil.validateAffineTransform(resource, mat);
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58 AffineTransform tr = mat != null ? new AffineTransform(mat) : new AffineTransform();
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59 ElementUtils.setTransform(e, tr);
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60 procedure.execute(graph, e);
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65 public static ISynchronizationContext getContext(IDiagram diagram) {
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66 return diagram.getHint(SynchronizationHints.CONTEXT);
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69 public static ISynchronizationContext getContextChecked(IDiagram diagram) {
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70 ISynchronizationContext context = getContext(diagram);
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71 if (context == null)
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72 throw new IllegalStateException("diagram does not contain " + SynchronizationHints.CONTEXT + " hint");
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76 public static ErrorHandler getErrorHandler(IDiagram diagram) {
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77 ISynchronizationContext context = getContext(diagram);
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78 if (context == null)
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80 return context.get(SynchronizationHints.ERROR_HANDLER);
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83 public static ErrorHandler getErrorHandlerChecked(IDiagram diagram) {
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84 ISynchronizationContext context = getContextChecked(diagram);
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85 ErrorHandler errorHandler = context.get(SynchronizationHints.ERROR_HANDLER);
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86 if (errorHandler == null)
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87 throw new IllegalStateException("synchronization context " + context + " does not contain " + SynchronizationHints.ERROR_HANDLER + " hint");
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88 return errorHandler;
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91 public static <T> T getContextHint(IDiagram diagram, Key key) {
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92 ISynchronizationContext context = getContext(diagram);
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93 if (context == null)
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95 return context.get(key);
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98 public static <T> T getContextHintChecked(IDiagram diagram, Key key) {
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99 return getContextChecked(diagram).get(key);
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102 public static void loadLayersForElement(AsyncReadGraph graph, IDiagram diagram, IElement e, Resource element,
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103 AsyncProcedure<IElement> callback) {
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104 final GraphLayerManager layerManager = getContextHint(diagram, GraphSynchronizationHints.GRAPH_LAYER_MANAGER);
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105 if (layerManager != null)
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106 loadLayersForElement(graph, layerManager, diagram, e, element, callback);
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108 callback.execute(graph, e);
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111 public static void loadLayersForElement(AsyncReadGraph graph, GraphLayerManager layerManager, IDiagram diagram, IElement e, Resource element,
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112 AsyncProcedure<IElement> callback) {
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113 final ILayersEditor layers = diagram.getHint(DiagramHints.KEY_LAYERS_EDITOR);
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114 if (layers != null)
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115 layerManager.loadLayersForElement(graph, layers, e, element, callback);
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117 callback.execute(graph, e);
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