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