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.db.AsyncReadGraph;
17 import org.simantics.db.ReadGraph;
18 import org.simantics.db.Resource;
19 import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;
20 import org.simantics.db.exception.DatabaseException;
21 import org.simantics.db.procedure.AsyncProcedure;
22 import org.simantics.diagram.stubs.DiagramResource;
23 import org.simantics.diagram.synchronization.ErrorHandler;
24 import org.simantics.diagram.synchronization.ISynchronizationContext;
25 import org.simantics.diagram.synchronization.SynchronizationHints;
26 import org.simantics.diagram.synchronization.graph.DiagramGraphUtil;
27 import org.simantics.diagram.synchronization.graph.GraphSynchronizationHints;
28 import org.simantics.diagram.synchronization.graph.layer.GraphLayerManager;
29 import org.simantics.g2d.diagram.DiagramHints;
30 import org.simantics.g2d.diagram.IDiagram;
31 import org.simantics.g2d.element.ElementUtils;
32 import org.simantics.g2d.element.IElement;
33 import org.simantics.g2d.layers.ILayersEditor;
34 import org.simantics.utils.datastructures.hints.IHintContext.Key;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
38 public class ElementFactoryUtil {
40 private static final Logger LOGGER = LoggerFactory.getLogger(ElementFactoryUtil.class);
42 public static void readTransform(AsyncReadGraph graph, final Resource resource, final IElement e) {
43 readTransform(graph, resource, e, new AsyncProcedureAdapter<IElement>() {
45 public void exception(AsyncReadGraph graph, Throwable t) {
46 LOGGER.error("Error reading transform from " + resource + " into element " + e, t);
51 public static void readTransform(AsyncReadGraph graph, final Resource resource, final IElement e, final AsyncProcedure<IElement> procedure) {
52 DiagramResource DIA = graph.getService(DiagramResource.class);
54 AffineTransform tr = DiagramGraphUtil.getDynamicAffineTransform((ReadGraph)graph, null, resource, DIA.HasDynamicTransform, true);
55 ElementUtils.setTransform(e, tr);
56 } catch (DatabaseException e1) {
57 ElementUtils.setTransform(e, new AffineTransform());
59 procedure.execute(graph, e);
62 public static ISynchronizationContext getContext(IDiagram diagram) {
63 return diagram.getHint(SynchronizationHints.CONTEXT);
66 public static ISynchronizationContext getContextChecked(IDiagram diagram) {
67 ISynchronizationContext context = getContext(diagram);
69 throw new IllegalStateException("diagram does not contain " + SynchronizationHints.CONTEXT + " hint");
73 public static ErrorHandler getErrorHandler(IDiagram diagram) {
74 ISynchronizationContext context = getContext(diagram);
77 return context.get(SynchronizationHints.ERROR_HANDLER);
80 public static ErrorHandler getErrorHandlerChecked(IDiagram diagram) {
81 ISynchronizationContext context = getContextChecked(diagram);
82 ErrorHandler errorHandler = context.get(SynchronizationHints.ERROR_HANDLER);
83 if (errorHandler == null)
84 throw new IllegalStateException("synchronization context " + context + " does not contain " + SynchronizationHints.ERROR_HANDLER + " hint");
88 public static <T> T getContextHint(IDiagram diagram, Key key) {
89 ISynchronizationContext context = getContext(diagram);
92 return context.get(key);
95 public static <T> T getContextHintChecked(IDiagram diagram, Key key) {
96 return getContextChecked(diagram).get(key);
99 public static void loadLayersForElement(AsyncReadGraph graph, IDiagram diagram, IElement e, Resource element,
100 AsyncProcedure<IElement> callback) {
101 final GraphLayerManager layerManager = getContextHint(diagram, GraphSynchronizationHints.GRAPH_LAYER_MANAGER);
102 if (layerManager != null)
103 loadLayersForElement(graph, layerManager, diagram, e, element, callback);
105 callback.execute(graph, e);
108 public static void loadLayersForElement(AsyncReadGraph graph, GraphLayerManager layerManager, IDiagram diagram, IElement e, Resource element,
109 AsyncProcedure<IElement> callback) {
110 final ILayersEditor layers = diagram.getHint(DiagramHints.KEY_LAYERS_EDITOR);
112 layerManager.loadLayersForElement(graph, layers, e, element, callback);
114 callback.execute(graph, e);