org.simantics.proconf.processeditor/src/org/simantics/processeditor/views/ProcessEditor.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.\r
   3  * All rights reserved. This program and the accompanying materials\r
   4  * are made available under the terms of the Eclipse Public License v1.0\r
   5  * which accompanies this distribution, and is available at\r
   6  * http://www.eclipse.org/legal/epl-v10.html\r
   7  *\r
   8  * Contributors:\r
   9  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  10  *******************************************************************************/\r
  11 package org.simantics.processeditor.views;\r
  12 \r
  13 import java.util.ArrayList;\r
  14 import java.util.Collection;\r
  15 import java.util.HashMap;\r
  16 import java.util.List;\r
  17 import java.util.Map;\r
  18 \r
  19 import org.eclipse.jface.viewers.ISelection;\r
  20 import org.eclipse.jface.viewers.ISelectionChangedListener;\r
  21 import org.eclipse.jface.viewers.SelectionChangedEvent;\r
  22 import org.eclipse.swt.widgets.Composite;\r
  23 import org.eclipse.ui.IWorkbenchPart;\r
  24 import org.eclipse.ui.views.contentoutline.IContentOutlinePage;\r
  25 import org.simantics.db.Graph;\r
  26 import org.simantics.db.Resource;\r
  27 import org.simantics.db.Session;\r
  28 import org.simantics.db.management.ISessionContext;\r
  29 import org.simantics.layer0.utils.EntityFactory;\r
  30 import org.simantics.layer0.utils.IEntity;\r
  31 import org.simantics.layer0.utils.Property;\r
  32 import org.simantics.processeditor.ProcessResource;\r
  33 import org.simantics.processeditor.actions.ConfigureFloorAction;\r
  34 import org.simantics.processeditor.actions.InsertComponentAction;\r
  35 import org.simantics.processeditor.actions.InsertEquipmentAction;\r
  36 import org.simantics.processeditor.actions.InsertNozzleAction;\r
  37 import org.simantics.processeditor.actions.RoutePipeAction;\r
  38 import org.simantics.processeditor.common.ControlPointTools;\r
  39 import org.simantics.processeditor.common.PipingRules;\r
  40 import org.simantics.processeditor.scenegraph.NonVisibleNode;\r
  41 import org.simantics.processeditor.scenegraph.PipeComponentNode;\r
  42 import org.simantics.processeditor.scenegraph.PipeRunNode;\r
  43 import org.simantics.processeditor.scenegraph.PipelineComponentNode;\r
  44 import org.simantics.processeditor.stubs.PipeControlPoint;\r
  45 import org.simantics.processeditor.stubs.PipeRun;\r
  46 import org.simantics.processeditor.stubs.Plant;\r
  47 import org.simantics.processeditor.stubs.Plant3DResource;\r
  48 import org.simantics.processeditor.tools.PlantEditContribution;\r
  49 import org.simantics.processeditor.tools.PlantVisualizationContribution;\r
  50 import org.simantics.proconf.g3d.base.JmeRenderingComponent;\r
  51 import org.simantics.proconf.g3d.base.ScenegraphAdapter;\r
  52 import org.simantics.proconf.g3d.base.ScenegraphAdapterImpl;\r
  53 import org.simantics.proconf.g3d.base.SelectionAdapter;\r
  54 import org.simantics.proconf.g3d.base.ThreeDimensionalEditorBase;\r
  55 import org.simantics.proconf.g3d.common.StructuredResourceSelection;\r
  56 import org.simantics.proconf.g3d.scenegraph.IGeometryNode;\r
  57 import org.simantics.proconf.g3d.scenegraph.IGraphicsNode;\r
  58 import org.simantics.proconf.g3d.scenegraph.ISelectableNode;\r
  59 import org.simantics.proconf.g3d.scenegraph.ParameterizedModelNode;\r
  60 import org.simantics.proconf.g3d.shapes.FloorShape;\r
  61 import org.simantics.proconf.g3d.stubs.G3DNode;\r
  62 import org.simantics.utils.ui.ErrorLogger;\r
  63 import org.simantics.utils.ui.jface.MenuTools;\r
  64 \r
  65 import com.jme.math.Vector3f;\r
  66 import com.jme.scene.Geometry;\r
  67 \r
  68 \r
  69 public class ProcessEditor extends ThreeDimensionalEditorBase {\r
  70     \r
  71     private Resource plantResource = null;\r
  72     \r
  73     private ConfigureFloorAction configureFloorAction = null;\r
  74 \r
  75     private Geometry floorShape = null;\r
  76 \r
  77     public ProcessEditor(ISessionContext session) {\r
  78         super(session);\r
  79         addEditorContribution(new PlantEditContribution(this));\r
  80         addEditorContribution(new PlantVisualizationContribution(this));\r
  81     }\r
  82     \r
  83     public ProcessEditor(ISessionContext session,JmeRenderingComponent component) {\r
  84         super(session,component);\r
  85         addEditorContribution(new PlantEditContribution(this));\r
  86         addEditorContribution(new PlantVisualizationContribution(this));\r
  87     }\r
  88     \r
  89     @Override\r
  90     protected ScenegraphAdapter createScenegraphAdapter() {\r
  91         return new ProcessEditorAdapter(session,getRenderingComponent());\r
  92     }\r
  93     \r
  94     @Override\r
  95     public void createControl(Graph graph,Composite parent) {\r
  96         super.createControl(graph,parent);\r
  97 \r
  98         floorShape = FloorShape.getShape(getRenderingComponent().getDisplaySystem().getRenderer(), 100.f,0.2f);\r
  99         getRenderingComponent().getNoCastRoot().attachChild(floorShape);\r
 100         floorShape.setLocalTranslation(new Vector3f(0.f,-0.01f,0.f));\r
 101         configureFloorAction.setFloorShape(floorShape);\r
 102     }\r
 103 \r
 104     @Override\r
 105     protected void makeActions(Graph graph) {\r
 106         super.makeActions(graph);\r
 107 \r
 108         //actions.add(new ShowTrendsAction(this));\r
 109 \r
 110         configureFloorAction = new ConfigureFloorAction(this);\r
 111 \r
 112 //        ContextActionFactory extended[] = ContextActionRegistry.getActions("fi.vtt.proconf.shapeeditor.processeditorview");\r
 113 //        for (ContextActionFactory c : extended) {\r
 114 //              actions.add(c.createAction(this));\r
 115 //        }\r
 116     }\r
 117     \r
 118     protected void fillLocalPullDown() {\r
 119         super.fillLocalPullDown();\r
 120         MenuTools.getOrCreate(getMenuID(),"Advanced", menuManager).add(configureFloorAction);\r
 121     }\r
 122     \r
 123     protected class ProcessEditorAdapter extends ScenegraphAdapterImpl {\r
 124         \r
 125          public ProcessEditorAdapter(Session session, JmeRenderingComponent component) {\r
 126                         super(session, component);\r
 127          }\r
 128          \r
 129          private class NormalScenegraphQuery extends ScenegraphQuery {\r
 130                 \r
 131                 public NormalScenegraphQuery(Resource node) {\r
 132                                 super(node);\r
 133                         } \r
 134                  \r
 135                  \r
 136                  @Override\r
 137                 public void shapeAdded(Graph graph, IGraphicsNode node) {\r
 138                          // FIXME : this won't work like in previous ProConf\r
 139                 }\r
 140          }\r
 141          \r
 142          private Map<Resource,PipeRunControlPointQuery> pipeRunQueries = new HashMap<Resource, PipeRunControlPointQuery>();\r
 143 \r
 144                 protected ScenegraphQuery newSubnodeListener(G3DNode node) {\r
 145                 if (node.isInstanceOf(ProcessResource.plant3Dresource.PipeRun)) {\r
 146                     PipeRunControlPointQuery query = new PipeRunControlPointQuery(node.getResource());\r
 147                     pipeRunQueries.put(node.getResource(), query);\r
 148                     node.getGraph().performQuery(query);\r
 149                 }\r
 150                 return new NormalScenegraphQuery(node.getResource());\r
 151                  \r
 152             }\r
 153                 \r
 154                 @Override\r
 155                 protected NodePropertyQuery newRootPropertyListener(G3DNode root) {\r
 156                         // currently Plant does not have any properties.\r
 157                         return null;\r
 158                 }\r
 159                 \r
 160                 private class TransformationQuery extends NodeTransformationQuery {\r
 161                         \r
 162                         public TransformationQuery(Resource res) {\r
 163                                 super(res);\r
 164                         }\r
 165                         \r
 166                         @Override\r
 167                         public void shapeUpdated(Graph graph, IGraphicsNode shape) {\r
 168                                 //if (shape instanceof IGeometryNode) {\r
 169                 //    updateGeometry((IGeometryNode)shape);\r
 170                 //} else {\r
 171                         shape.updateTransform(graph);\r
 172                 //}\r
 173                         }\r
 174                 }\r
 175                 \r
 176                 @Override\r
 177                 protected NodeTransformationQuery newTransformationListener(G3DNode root) {\r
 178                         return new TransformationQuery(root.getResource());\r
 179                 }\r
 180                 \r
 181                 private class NormalNodePropertyQuery extends org.simantics.proconf.g3d.base.ScenegraphAdapterImpl.NodePropertyQuery {\r
 182                         \r
 183                         public NormalNodePropertyQuery(Resource resource) {\r
 184                                 super(resource);\r
 185                         }\r
 186 \r
 187                         @Override\r
 188                         public void shapeUpdated(Graph graph,IGraphicsNode shape) {\r
 189                                 if (shape instanceof IGeometryNode) {\r
 190                     updateGeometry((IGeometryNode)shape);\r
 191                 } else {\r
 192                         shape.updateTransform(graph);\r
 193                 }\r
 194                         }\r
 195                 }\r
 196          @Override\r
 197         protected NodePropertyQuery newPropertyListener(G3DNode node) {\r
 198                 return new NormalNodePropertyQuery(node.getResource());\r
 199         }\r
 200    \r
 201          @Override\r
 202                 protected IGraphicsNode instantiateNode(IGraphicsNode parent,\r
 203                                 G3DNode node) {\r
 204                         Plant3DResource p3r = ProcessResource.plant3Dresource;\r
 205                         IGraphicsNode newNode = null;\r
 206                         try {\r
 207                                 if (node.isInstanceOf(p3r.Equipment)) {\r
 208                                         newNode = new ParameterizedModelNode(\r
 209                                                         ProcessEditor.this, parent, node.getGraph(),\r
 210                                                         node.getResource(), p3r.HasGraphics);\r
 211                                 } else if (node.isInstanceOf(p3r.PipeRun)) {\r
 212                                         newNode = new PipeRunNode(parent, node.getGraph(), node.getResource());\r
 213                                 } else if (node.isInstanceOf(p3r.Nozzle)) {\r
 214                                         newNode = new ParameterizedModelNode(\r
 215                                                         ProcessEditor.this, parent, node.getGraph(),\r
 216                                                         node.getResource(), p3r.HasGraphics);\r
 217                                         // CodedComponent must be handled first since it uses\r
 218                                         // hard-coded geometries\r
 219                                         // TODO : is this really necessary, or could we unify\r
 220                                         // PipeComponentNode, InlineComponentNode,...\r
 221                                 } else if (node.isInstanceOf(p3r.CodedComponent)) {\r
 222                                         newNode = new PipeComponentNode(ProcessEditor.this,\r
 223                                                         parent, node.getGraph(), node.getResource());\r
 224                                 } else if (node.isInstanceOf(p3r.NonVisibleComponent)) {\r
 225                                         newNode = new NonVisibleNode(parent, node.getGraph(), node.getResource());\r
 226                                 } else if (node.isInstanceOf(p3r.PipelineComponent)) {\r
 227                                         newNode = new PipelineComponentNode(ProcessEditor.this,\r
 228                                                         parent, node.getGraph(), node.getResource());\r
 229                                 } \r
 230 \r
 231                                 // } else if (node instanceof Shape) // Markers (ar/mobile)\r
 232                                 // needed this\r
 233                                 // newNode = new ShapeNode(TestProcessEditor.this,parent,node);\r
 234                                 if (newNode != null) {\r
 235                                         if (newNode instanceof ISelectableNode)\r
 236                                                 ((ISelectableNode) newNode).setVisible(true);\r
 237                                         if (newNode instanceof IGeometryNode) {\r
 238                                                 updateGeometry((IGeometryNode) newNode);\r
 239                                         }\r
 240                                         return newNode;\r
 241                                 }\r
 242                         } catch (Exception e) {\r
 243                                 ErrorLogger.defaultLogError("Cannot handle node " + node.getResource(), e);\r
 244                                 return null;\r
 245                         }\r
 246                         ErrorLogger.defaultLogError("Cannot handle node " + node.getResource(), null);\r
 247                         return null;\r
 248 \r
 249                 }\r
 250 \r
 251                 /**\r
 252                  * This is used to create elbows and straight pipes to pipeline TODO :\r
 253                  * this should be done with rule-engine!\r
 254                  * \r
 255                  * \r
 256                  * @author Marko Luukkainen\r
 257                  * \r
 258                  */\r
 259                 protected class PipeRunControlPointQuery extends NodeQuery {\r
 260                         private List<Resource> removed = new ArrayList<Resource>();\r
 261                         private List<Resource> added = new ArrayList<Resource>();\r
 262 \r
 263                         public PipeRunControlPointQuery(Resource r) {\r
 264                                 super(r);\r
 265                                 if (DEBUG) System.out.println("Created PipeRunControlPointQuery for " + r);\r
 266 \r
 267                         }\r
 268 \r
 269                         @Override\r
 270                         protected Object compute2(Graph graph) {\r
 271                                 PipeRun run = new PipeRun(graph, nodeResource);\r
 272                                 Collection<IEntity> cps = run\r
 273                                                 .getRelatedObjects(ProcessResource.plant3Dresource.HasControlPoints);\r
 274                                 List<Resource> res = new ArrayList<Resource>();\r
 275                                 for (IEntity t : cps)\r
 276                                         res.add(t.getResource());\r
 277                                 return res;\r
 278                         }\r
 279 \r
 280                         @Override\r
 281                         public boolean updated(Graph graph, Object oldResult,\r
 282                                         Object newResult) {\r
 283                                 \r
 284                                 removed.clear();\r
 285                                 added.clear();\r
 286 \r
 287                                 List<Resource> oldCps = (List<Resource>) oldResult;\r
 288                                 List<Resource> newCps = (List<Resource>) newResult;\r
 289                                 if (oldCps == null)\r
 290                                         oldCps = new ArrayList<Resource>();\r
 291 \r
 292                                 for (Resource r : oldCps) {\r
 293                                         if (!newCps.contains(r))\r
 294                                                 removed.add(r);\r
 295                                 }\r
 296 \r
 297                                 for (Resource r : newCps) {\r
 298                                         if (!oldCps.contains(r))\r
 299                                                 added.add(r);\r
 300                                 }\r
 301                                 for (Resource r : removed)\r
 302                                         removeControlPoint(graph, r);\r
 303                                 for (Resource r : added) {\r
 304                                         addControlPoint(graph, r);\r
 305                                         // ControlPointTools.addControlPoint(new\r
 306                                         // PipeRun(graph,pipeRun), new PipeControlPoint(graph, r));\r
 307                                 }\r
 308 \r
 309                                 return (added.size() > 0 || removed.size() > 0);\r
 310                         }\r
 311                         \r
 312                         @Override\r
 313                         public void dispose() {\r
 314                                 super.dispose();\r
 315                                 for (ControlPointPropertyQuery q : controlPointPropertyQueries.values())\r
 316                                         q.dispose();\r
 317                                 controlPointPropertyQueries.clear();\r
 318                         }\r
 319                         \r
 320                         private Map<Resource,ControlPointPropertyQuery> controlPointPropertyQueries = new HashMap<Resource, ControlPointPropertyQuery>();\r
 321                         \r
 322                         private void addControlPoint(Graph graph, Resource resource) {\r
 323                                 ControlPointPropertyQuery query = new ControlPointPropertyQuery(resource);\r
 324                                 graph.performQuery(query);\r
 325                                 controlPointPropertyQueries.put(resource,query);\r
 326                         }\r
 327                         \r
 328                         private void removeControlPoint(Graph graph, Resource resource) {\r
 329                                 ControlPointPropertyQuery query = controlPointPropertyQueries.remove(resource);\r
 330                                 query.dispose();\r
 331                                 ControlPointTools.removeControlPoint(new PipeControlPoint(\r
 332                                                 graph, resource));\r
 333                         }\r
 334 \r
 335                 }\r
 336 \r
 337                 protected class ControlPointPropertyQuery extends NodeQuery {\r
 338                         boolean initialized = false;\r
 339                         \r
 340                         public ControlPointPropertyQuery(Resource r) {\r
 341                                 super(r);\r
 342                                 if (DEBUG) System.out.println("Created ControlPointPropertyQuery for " + r);\r
 343                         }\r
 344                         \r
 345                         @Override\r
 346                 public List<Object> compute2(Graph g) {\r
 347                         IEntity t = EntityFactory.create(g,nodeResource);\r
 348                         \r
 349                         Collection<Property> properties = t.getRelatedProperties(ProcessResource.builtins.HasProperty);\r
 350                         List<Object> propertyValues = new ArrayList<Object>();\r
 351                         p(properties,propertyValues);\r
 352 \r
 353                         return propertyValues;\r
 354                 }\r
 355                 \r
 356                 private void p(Collection<Property> properties, List<Object> propertyValues) {\r
 357                         for (Property p : properties) {\r
 358                                 Collection<Property> subProperties = p.getRelatedProperties(p.getGraph().getBuiltins().HasProperty);\r
 359                                 if (subProperties.size() != 0) {\r
 360                                         p(subProperties,propertyValues);\r
 361                                 } \r
 362                                 if (p.hasValue()){\r
 363                                         propertyValues.add(p.getValue());\r
 364                                 }\r
 365                         }\r
 366                 }\r
 367                         \r
 368                         @Override\r
 369                         public boolean updated(Graph graph, Object oldResult, Object newResult) {\r
 370                                 PipingRules.pipeControlPointPositionUpdate(graph, this.nodeResource);\r
 371                                 if (initialized) {\r
 372                                         //PipingRules.pipeControlPointPositionUpdate(graph, this.nodeResource);\r
 373                                 } else {\r
 374                                         initialized = true;\r
 375                                 }\r
 376                                 return true;\r
 377                         }\r
 378                 }\r
 379                 \r
 380                 @Override\r
 381                 protected void removeNode(Resource parent, Resource r) {\r
 382                         super.removeNode(parent, r);\r
 383                         PipeRunControlPointQuery q = pipeRunQueries.get(r);\r
 384                         if (q != null)\r
 385                                 q.dispose();\r
 386                 }\r
 387                 \r
 388                 @Override\r
 389                 public void dispose() {\r
 390                         super.dispose();\r
 391                 }\r
 392         }\r
 393     \r
 394     @Override\r
 395     protected void pageSelectionChanged(IWorkbenchPart part, ISelection selection) {\r
 396         if (!(selection instanceof StructuredResourceSelection)) {\r
 397             return;\r
 398         }\r
 399         \r
 400         StructuredResourceSelection s = (StructuredResourceSelection) selection;\r
 401         selectionAdapter.setCurrentSelection(s);\r
 402         viewChanged = true;\r
 403         \r
 404         //if (s.getRootSelection() == null) {\r
 405         if (!(part instanceof ProcessEditor)) {\r
 406             //System.out.println("ShapeEditorView.pageSelectionChanged() no root selection");\r
 407                 ((ProcessEditorSelectionAdapter)selectionAdapter).setEditorSelection(true);\r
 408             return;\r
 409         } \r
 410         //if (!s.getRootSelection().getResource().getId().equals(plant.getResource().getId())) {\r
 411         ProcessEditor sender = (ProcessEditor)part;\r
 412         if (!sender.getPlantResource().equals(plantResource)) {\r
 413 //          System.out.println("ShapeEditorView.pageSelectionChanged() not right group "\r
 414 //                  + s.getRootSelection().getResource().getId() + " != " + model.getResource().getId());\r
 415                 selectionAdapter.setCurrentSelection(new StructuredResourceSelection());\r
 416                 ((ProcessEditorSelectionAdapter)selectionAdapter).setEditorSelection(false);\r
 417           return;\r
 418       }\r
 419         selectionAdapter.setEditorSelection();\r
 420         \r
 421     }\r
 422 \r
 423     @Override\r
 424     protected void reloadFrom(IEntity thing) {\r
 425         if (plantResource != null) {\r
 426             throw new UnsupportedOperationException("Reloading instantiated viewer not supported");\r
 427         }\r
 428         if (thing.isInstanceOf(ProcessResource.plant3Dresource.Plant)) {\r
 429             plantResource = thing.getResource();\r
 430             G3DNode plant = new G3DNode(thing);\r
 431             adapter.setRootNode(plant);\r
 432             //adapter.addOutbound(plant);\r
 433             ControlPointTools.reloadCache(thing.getGraph(),plant.getResource());\r
 434         } else {\r
 435             throw new IllegalArgumentException("Resource is not a plant");\r
 436         } \r
 437     }\r
 438 \r
 439     public Resource getPlantResource() {\r
 440         return plantResource;\r
 441     }\r
 442     \r
 443     public Plant getPlant(Graph g) {\r
 444         return new Plant(g, plantResource);\r
 445     }\r
 446     \r
 447     @Override\r
 448     protected SelectionAdapter createSelectionAdapter() {\r
 449         return new ProcessEditorSelectionAdapter(adapter);\r
 450     }\r
 451     \r
 452     protected class ProcessEditorSelectionAdapter extends SelectionAdapter {\r
 453         \r
 454         \r
 455          public ProcessEditorSelectionAdapter(ScenegraphAdapter adapter) {\r
 456                         super(adapter);\r
 457          }\r
 458 \r
 459             @Override\r
 460             public void setEditorSelection() {\r
 461                 List<IGraphicsNode> sel = getSelectedObjects();\r
 462                 for (IGraphicsNode o : adapter.getNodes())\r
 463                         if (o instanceof ISelectableNode) {\r
 464                                 if (sel.contains(o)) {\r
 465                                 ((ISelectableNode)o).setSelected(true);\r
 466                         } else {\r
 467                                 ((ISelectableNode)o).setSelected(false);\r
 468                         }\r
 469                         }\r
 470             }\r
 471             \r
 472             public void setEditorSelection(boolean addShapes) {\r
 473 \r
 474                 List<IGraphicsNode> sel = getSelectedObjects();\r
 475                 for (IGraphicsNode o : adapter.getNodes())\r
 476                         if (o instanceof ISelectableNode) {\r
 477                                 if (sel.contains(o)) {\r
 478                                 ((ISelectableNode)o).setSelected(true);\r
 479                         } else {\r
 480                                 ((ISelectableNode)o).setSelected(false);\r
 481                         }\r
 482                         }\r
 483             }\r
 484 \r
 485             @Override\r
 486             protected void setEditorHighlightSelection() {\r
 487                 List<IGraphicsNode> sel = getInteractiveSelectedObjects();\r
 488                 for (IGraphicsNode o : adapter.getNodes())\r
 489                         if (o instanceof ISelectableNode) {\r
 490                                 if (sel.contains(o)) {\r
 491                                 ((ISelectableNode)o).setHighlighted(true);\r
 492                         } else {\r
 493                                 ((ISelectableNode)o).setHighlighted(false);\r
 494                         }\r
 495                         }\r
 496             }\r
 497     }\r
 498     \r
 499     @Override\r
 500     protected void hookDragAndDrop() {\r
 501         super.hookDragAndDrop();\r
 502         dropTarget.addDropListener(new InsertEquipmentAction(this));\r
 503         dropTarget.addDropListener(new InsertNozzleAction(this));\r
 504         dropTarget.addDropListener(new InsertComponentAction(this));\r
 505         dropTarget.addDropListener(new RoutePipeAction(this));\r
 506     }\r
 507     \r
 508     @Override\r
 509         public Object getAdapter(Class adapter) {\r
 510                 if (adapter == IContentOutlinePage.class) {\r
 511                         if (getPlantResource() == null)\r
 512                                 return null;\r
 513                         final PlantStructureOutlinePage page = new PlantStructureOutlinePage(sessionContext,getPlantResource());\r
 514                         \r
 515                         getSelectionAdapter().addSelectionChangedListener(new ISelectionChangedListener() {\r
 516                                 @Override\r
 517                                 public void selectionChanged(SelectionChangedEvent event) {\r
 518                                         page.setSelection(event.getSelection());\r
 519                                         \r
 520                                 }\r
 521                         });\r
 522                         parent.getDisplay().asyncExec(new Runnable() {\r
 523                                 @Override\r
 524                                 public void run() {\r
 525                                         page.addSelectionChangedListener(new ISelectionChangedListener() {\r
 526                                                 @Override\r
 527                                                 public void selectionChanged(SelectionChangedEvent event) {\r
 528                                                         selectionAdapter.setSelection(SelectionAdapter.transformSelection(event.getSelection()));\r
 529                                                 }\r
 530                                         });\r
 531                                 }\r
 532                         });\r
 533 \r
 534                         return page;\r
 535                 }\r
 536                 return null;\r
 537         }\r
 538 }