org.simantics.g3d/src/org/simantics/g3d/property/AnnotatedPropertyTabContributorFactory.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012, 2013 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   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
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.g3d.property;
  13
  14 import java.lang.annotation.Annotation;
  15 import java.lang.reflect.Field;
  16 import java.lang.reflect.InvocationTargetException;
  17 import java.lang.reflect.Method;
  18 import java.util.ArrayList;
  19 import java.util.Collection;
  20 import java.util.Collections;
  21 import java.util.HashMap;
  22 import java.util.HashSet;
  23 import java.util.LinkedHashMap;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Set;
  27 import java.util.function.Consumer;
  28
  29 import org.eclipse.jface.layout.GridDataFactory;
  30 import org.eclipse.jface.viewers.AbstractTableViewer;
  31 import org.eclipse.jface.viewers.CellEditor;
  32 import org.eclipse.jface.viewers.CellEditor.LayoutData;
  33 import org.eclipse.jface.viewers.CellLabelProvider;
  34 import org.eclipse.jface.viewers.CellNavigationStrategy;
  35 import org.eclipse.jface.viewers.ColumnViewer;
  36 import org.eclipse.jface.viewers.ColumnViewerEditor;
  37 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
  38 import org.eclipse.jface.viewers.ColumnViewerEditorActivationListener;
  39 import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
  40 import org.eclipse.jface.viewers.ColumnViewerEditorDeactivationEvent;
  41 import org.eclipse.jface.viewers.EditingSupport;
  42 import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
  43 import org.eclipse.jface.viewers.ISelection;
  44 import org.eclipse.jface.viewers.ISelectionChangedListener;
  45 import org.eclipse.jface.viewers.ISelectionProvider;
  46 import org.eclipse.jface.viewers.IStructuredContentProvider;
  47 import org.eclipse.jface.viewers.SelectionChangedEvent;
  48 import org.eclipse.jface.viewers.StructuredSelection;
  49 import org.eclipse.jface.viewers.TableViewer;
  50 import org.eclipse.jface.viewers.TableViewerColumn;
  51 import org.eclipse.jface.viewers.TableViewerFocusCellManager;
  52 import org.eclipse.jface.viewers.TextCellEditor;
  53 import org.eclipse.jface.viewers.Viewer;
  54 import org.eclipse.jface.viewers.ViewerCell;
  55 import org.eclipse.jface.viewers.ViewerColumn;
  56 import org.eclipse.jface.viewers.ViewerRow;
  57 import org.eclipse.swt.SWT;
  58 import org.eclipse.swt.custom.TableEditor;
  59 import org.eclipse.swt.events.TraverseEvent;
  60 import org.eclipse.swt.widgets.Composite;
  61 import org.eclipse.swt.widgets.Control;
  62 import org.eclipse.swt.widgets.Display;
  63 import org.eclipse.swt.widgets.Event;
  64 import org.eclipse.swt.widgets.Item;
  65 import org.eclipse.swt.widgets.TableColumn;
  66 import org.eclipse.swt.widgets.TableItem;
  67 import org.eclipse.ui.IWorkbenchSite;
  68 import org.simantics.db.management.ISessionContext;
  69 import org.simantics.g3d.property.annotations.CompoundGetPropertyValue;
  70 import org.simantics.g3d.property.annotations.CompoundSetPropertyValue;
  71 import org.simantics.g3d.property.annotations.GetPropertyValue;
  72 import org.simantics.g3d.property.annotations.PropertyTabBlacklist;
  73 import org.simantics.g3d.property.annotations.SetPropertyValue;
  74 import org.simantics.g3d.scenegraph.IG3DNode;
  75 import org.simantics.g3d.scenegraph.NodeMap;
  76 import org.simantics.g3d.scenegraph.NodeMapProvider;
  77 import org.simantics.g3d.scenegraph.base.INode;
  78 import org.simantics.g3d.scenegraph.base.NodeListener;
  79 import org.simantics.g3d.scenegraph.base.ParentNode;
  80 import org.simantics.g3d.scenegraph.structural.IStructuralNode;
  81 import org.simantics.g3d.tools.AdaptationUtils;
  82 import org.simantics.selectionview.IPropertyTab;
  83 import org.simantics.selectionview.IPropertyTab2;
  84 import org.simantics.utils.datastructures.Callback;
  85 import org.simantics.utils.datastructures.MapList;
  86
  87 public class AnnotatedPropertyTabContributorFactory implements PropertyTabContributorFactory {
  88
  89         private static final boolean DEBUG = false;
  90
  91         @SuppressWarnings("unchecked")
  92         @Override
  93         public List<PropertyTabContributor> getContributors(Object input) {
  94                 Map<String,IPropertyItem> items = new LinkedHashMap<String, IPropertyItem>();
  95                 List<String> blacklist = new ArrayList<String>();
  96                 try {
  97                         collectItems(input.getClass(), items);
  98                         collectBlacklist(input.getClass(), blacklist);
  99                 } catch (InstantiationException e) {
 100                         // TODO Auto-generated catch block
 101                         e.printStackTrace();
 102                 } catch (IllegalAccessException e) {
 103                         // TODO Auto-generated catch block
 104                         e.printStackTrace();
 105                 }
 106
 107                 if (items.size() == 0)
 108                         return Collections.EMPTY_LIST;
 109
 110                 MapList<String, IPropertyItem> tabMap = new MapList<String, IPropertyItem>();
 111                 List<String> tabs = new ArrayList<String>();
 112                 for (String id : items.keySet()) {
 113                         IPropertyItem item = items.get(id);
 114                         tabMap.add(item.getTabId(), item);
 115                         if (!tabs.contains(item.getTabId())) {
 116                                 tabs.add(item.getTabId());
 117                                 //System.out.println(item.tabId + " " + item.name + " " + item.id);
 118                         }
 119                 }
 120                 for (String s : blacklist) {
 121                         tabs.remove(s);
 122                 }
 123
 124                 List<PropertyTabContributor> contributors = new ArrayList<PropertyTabContributor>(tabs.size());
 125                 for (String tabId : tabs) {
 126                         contributors.add(new AnnotatedPropertyTabContributor(tabId, tabMap.getValues(tabId)));
 127                 }
 128
 129                 return contributors;
 130         }
 131
 132
 133         private static void collectItems(Class<?> clazz, Map<String, IPropertyItem> items) throws InstantiationException, IllegalAccessException {
 134                  Class<?> superclass = clazz.getSuperclass();
 135                  if(superclass != null)
 136                          collectItems(superclass, items);
 137
 138                  for (Method m : clazz.getDeclaredMethods()) {
 139                          m.setAccessible(true);
 140                 for (Annotation annotation : m.getAnnotations()) {
 141                         if (annotation.annotationType().equals(GetPropertyValue.class)) {
 142                                 GetPropertyValue get = (GetPropertyValue)annotation;
 143                                 PropertyItem item = (PropertyItem)items.get(get.value());
 144                                 if (item == null) {
 145                                         item = new PropertyItem(get.value());
 146                                         items.put(item.id, item);
 147                                 }
 148
 149                                 item.getter = m;
 150                                 item.manipulatorClass = get.manipulator().newInstance().get(m,null);
 151
 152                                 item.tabId = get.tabId();
 153
 154                                 item.name = get.name();
 155
 156
 157                         } else if (annotation.annotationType().equals(SetPropertyValue.class)) {
 158                                 SetPropertyValue set = (SetPropertyValue)annotation;
 159                                 PropertyItem item = (PropertyItem)items.get(set.value());
 160                                 if (item == null) {
 161                                         item = new PropertyItem(set.value());
 162                                         items.put(item.id, item);
 163                                 }
 164
 165                                 item.setter = m;
 166                         } else if (annotation.annotationType().equals(CompoundGetPropertyValue.class)) {
 167                                 CompoundGetPropertyValue get = (CompoundGetPropertyValue)annotation;
 168                                 CompoundPropertyItem item = (CompoundPropertyItem)items.get(get.value());
 169                                 if (item == null) {
 170                                         item = new CompoundPropertyItem(get.value());
 171                                         items.put(item.id, item);
 172                                 }
 173
 174                                 item.getter = m;
 175                                 item.manipulatorFactory = get.manipulator().newInstance();
 176
 177                                 item.tabId = get.tabId();
 178
 179                                 item.name = get.name();
 180                         } else if (annotation.annotationType().equals(CompoundSetPropertyValue.class)) {
 181                                 CompoundSetPropertyValue set = (CompoundSetPropertyValue)annotation;
 182                                 CompoundPropertyItem item = (CompoundPropertyItem)items.get(set.value());
 183                                 if (item == null) {
 184                                         item = new CompoundPropertyItem(set.value());
 185                                         items.put(item.id, item);
 186                                 }
 187
 188                                 item.setter = m;
 189                         }
 190                 }
 191                  }
 192
 193
 194         }
 195
 196         private static void collectBlacklist(Class<?> clazz, List<String> blacklist) throws InstantiationException, IllegalAccessException {
 197                  Class<?> superclass = clazz.getSuperclass();
 198                  if(superclass != null)
 199                          collectBlacklist(superclass, blacklist);
 200
 201                  PropertyTabBlacklist ann = clazz.getAnnotation(PropertyTabBlacklist.class);
 202                  if (ann == null)
 203                          return;
 204                  String s = ann.value();
 205                  if (s == null)
 206                          return;
 207                  if (s.length() == 0)
 208                          return;
 209                  for (String item : s.split(";")) {
 210                          blacklist.add(item);
 211                  }
 212
 213
 214         }
 215
 216         private static Map<PropertyItem, PropertyManipulator> createManipulators(CompoundPropertyItem item, Object obj) {
 217                 try {
 218
 219                         Map<String,Object> map = (Map<String, Object>)item.getter.invoke(obj);
 220                         Map<PropertyItem, PropertyManipulator> result = new HashMap<AnnotatedPropertyTabContributorFactory.PropertyItem, PropertyManipulator>();
 221                         for (String key : map.keySet()) {
 222                                 MethodWithMapValueProvider provider = new MethodWithMapValueProvider(item.getter, item.setter, key);
 223                                 Class<? extends PropertyManipulator> clazz = item.manipulatorFactory.get(null,map.get(key));
 224                                 PropertyManipulator manipulator = clazz.getConstructor(ValueProvider.class,Object.class).newInstance(provider,obj);
 225                                 PropertyItem i = new PropertyItem(item.id+"."+key);
 226                                 i.getter = item.getter;
 227                                 i.setter = item.setter;
 228                                 i.name = key;
 229                                 i.tabId = item.tabId;
 230                                 result.put(i,manipulator);
 231                         }
 232                         return result;
 233                 } catch (Exception e) {
 234                         e.printStackTrace();
 235                         return Collections.EMPTY_MAP;
 236                 }
 237
 238         }
 239
 240         private static PropertyManipulator createManipulator(PropertyItem item, Object obj) {
 241                 try {
 242                         MethodValueProvider provider = new MethodValueProvider(item.getter, item.setter);
 243                         PropertyManipulator manipulator = item.manipulatorClass.getConstructor(ValueProvider.class,Object.class).newInstance(provider,obj);
 244                         return manipulator;
 245                 } catch (Exception e) {
 246                         e.printStackTrace();
 247                         return null;
 248                 }
 249         }
 250
 251         private static interface IPropertyItem {
 252                 public String getTabId();
 253         }
 254
 255         private static class PropertyItem implements IPropertyItem{
 256                 private String id;
 257                 private String name;
 258                 private String tabId;
 259                 private Method getter;
 260                 private Method setter;
 261                 private Class<? extends PropertyManipulator> manipulatorClass;
 262
 263
 264                 public PropertyItem(String id) {
 265                         if (id == null)
 266                                 throw new NullPointerException();
 267                         this.id = id;
 268                 }
 269
 270                 @Override
 271                 public int hashCode() {
 272                         return id.hashCode();
 273                 }
 274
 275                 @Override
 276                 public String getTabId() {
 277                         return tabId;
 278                 }
 279         }
 280
 281         private static class CompoundPropertyItem implements IPropertyItem{
 282                 private String id;
 283                 private String name;
 284                 private String tabId;
 285                 private Method getter;
 286                 private Method setter;
 287                 private PropertyManipulatorFactory manipulatorFactory;
 288
 289
 290                 public CompoundPropertyItem(String id) {
 291                         if (id == null)
 292                                 throw new NullPointerException();
 293                         this.id = id;
 294                 }
 295
 296                 @Override
 297                 public int hashCode() {
 298                         return id.hashCode();
 299                 }
 300
 301                 @Override
 302                 public String getTabId() {
 303                         return tabId;
 304                 }
 305         }
 306
 307         private static class AnnotatedPropertyTabContributor implements PropertyTabContributor {
 308                 private String id;
 309                 List<IPropertyItem> items;
 310
 311                 public AnnotatedPropertyTabContributor(String id, List<IPropertyItem> items) {
 312                         if (id == null)
 313                                 throw new NullPointerException();
 314                         this.id = id;
 315                         this.items = items;
 316                 }
 317
 318                 @Override
 319                 public IPropertyTab create(Composite parent, IWorkbenchSite site,
 320                                 ISessionContext context, Object input) {
 321                         AnnotatedPropertyTab tab = new AnnotatedPropertyTab(id, items);
 322                         tab.createControl(parent, context);
 323                         return tab;
 324                 }
 325
 326                 @Override
 327                 public String getId() {
 328                         return id;
 329                 }
 330
 331         }
 332
 333         private static class AnnotatedPropertyTab implements IPropertyTab2, NodeListener {
 334                 //private String id;
 335                 List<IPropertyItem> contibutedItems;
 336                 List<PropertyItem> resolvedItems = new ArrayList<PropertyItem>();
 337                 private Map<PropertyItem,PropertyManipulator> manipulators = new HashMap<PropertyItem, PropertyManipulator>();
 338
 339                 private TableViewer viewer;
 340
 341                 private IG3DNode node;
 342                 private NodeMap<?,?> nodeMap;
 343
 344                 private List<TableViewerColumn> valueColumns = new ArrayList<TableViewerColumn>();
 345
 346                 public AnnotatedPropertyTab(String id, List<IPropertyItem> items) {
 347                         //this.id = id;
 348                         this.contibutedItems = items;
 349
 350
 351                 }
 352
 353                 @Override
 354                 public void createControl(Composite parent, ISessionContext context) {
 355                         //parent.setLayout(new FillLayout());
 356                         viewer = new TableViewer(parent, SWT.FULL_SELECTION | SWT.SINGLE);
 357
 358                         GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).applyTo(viewer.getTable());
 359
 360                         //viewer.setLabelProvider(new AnnotatedTableLabelProvider(object))
 361
 362                         viewer.setContentProvider(new PropertyItemContentsProvider());
 363
 364                         TableViewerColumn name = new TableViewerColumn(viewer, SWT.LEFT);
 365                         //TableViewerColumn value = new TableViewerColumn(viewer, SWT.LEFT);
 366                         name.setLabelProvider(new PropertyItemNameProvider());
 367                         //value.setLabelProvider(new PropertyValueLabelProvider(null));
 368                         name.getColumn().setText("Property");
 369                         //value.getColumn().setText("Value");
 370                         name.getColumn().setWidth(200);
 371                         //value.getColumn().setWidth(200);
 372                         name.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
 373
 374                                 @Override
 375                                 public void selectionChanged(SelectionChangedEvent event) {
 376                                         PropertyItem item = AdaptationUtils.adaptToSingle(event.getSelection(),PropertyItem.class);
 377                                         if (item != null) {
 378                                                 PropertyManipulator manipulator = manipulators.get(item);//createManipulator(item, null);
 379                                                 for (int i = 0; i < valueColumns.size(); i++) {
 380                                                         TableViewerColumn c = valueColumns.get(i);
 381                                                         if (i < manipulator.getValueCount()) {
 382                                                                 c.getColumn().setText(manipulator.getDescription(i));
 383                                                         } else {
 384                                                                 c.getColumn().setText("");
 385                                                         }
 386                                                 }
 387                                         }
 388
 389                                 }
 390                         });
 391
 392                         int valueCount = 0;
 393                         for (IPropertyItem item : contibutedItems) {
 394                                 if (item instanceof PropertyItem) {
 395                                         PropertyManipulator manipulator = createManipulator((PropertyItem)item, null);
 396                                         if (manipulator == null)
 397                                                 continue;
 398                                         if (valueCount < manipulator.getValueCount())
 399                                                 valueCount = manipulator.getValueCount();
 400                                 } else if (item instanceof CompoundPropertyItem) {
 401                                         if (valueCount < 1)
 402                                                 valueCount = 1;
 403                                 }
 404                         }
 405                         for (int i = 0; i < valueCount; i++) {
 406                                 TableViewerColumn value = new TableViewerColumn(viewer, SWT.LEFT);
 407                                 //value.getColumn().setText("Value " + (i+1));
 408                                 value.getColumn().setText("");
 409                                 value.getColumn().setWidth(200);
 410                                 valueColumns.add(value);
 411                                 //value.setEditingSupport(new )
 412                         }
 413                         viewer.getTable().setHeaderVisible(true);
 414                         viewer.getTable().setLinesVisible(true);
 415                         viewer.addSelectionChangedListener(new ISelectionChangedListener() {
 416
 417                                 @Override
 418                                 public void selectionChanged(SelectionChangedEvent event) {
 419                                         PropertyItem item = AdaptationUtils.adaptToSingle(event.getSelection(), PropertyItem.class);
 420                                         selectedItem = item;
 421                                         if (!manipulators.get(selectedItem).getEditMode())
 422                                                 manipulators.get(selectedItem).setEditMode(true);
 423
 424
 425                                         for (IPropertyItem i : delayedUpdate) {
 426                                                 if (!i.equals(selectedItem)) {
 427                                                         manipulators.get(i).setEditMode(false);
 428                                                         viewer.update(i,null);
 429                                                 }
 430                                         }
 431                                         if (delayedUpdate.contains(selectedItem)) {
 432                                                 delayedUpdate.clear();
 433                                                 delayedUpdate.add(selectedItem);
 434                                         } else {
 435                                                 delayedUpdate.clear();
 436                                         }
 437                                 }
 438                         });
 439
 440                         CellNavigationStrategy nStrategy = new CellNavigationStrategy() {
 441                                 private ViewerCell internalFindSelectedCell(
 442                                                 ColumnViewer viewer, ViewerCell currentSelectedCell,
 443                                                 Event event) {
 444                                         switch (event.keyCode) {
 445                                         case SWT.ARROW_UP:
 446                                                 if (currentSelectedCell != null) {
 447                                                         return getNeighbor(currentSelectedCell,
 448                                                                         ViewerCell.ABOVE, false);
 449                                                 }
 450                                                 break;
 451                                         case SWT.ARROW_DOWN:
 452                                                 if (currentSelectedCell != null) {
 453                                                         return getNeighbor(currentSelectedCell,
 454                                                                         ViewerCell.BELOW, false);
 455                                                 }
 456                                                 break;
 457                                         case SWT.ARROW_LEFT:
 458                                                 if (currentSelectedCell != null) {
 459                                                         return getNeighbor(currentSelectedCell,
 460                                                                         ViewerCell.LEFT, true);
 461                                                 }
 462                                                 break;
 463                                         case SWT.ARROW_RIGHT:
 464                                                 if (currentSelectedCell != null) {
 465                                                         return getNeighbor(currentSelectedCell,
 466                                                                         ViewerCell.RIGHT, true);
 467                                                 }
 468                                                 break;
 469                                         }
 470                                         return null;
 471                                 }
 472
 473                                 public ViewerCell findSelectedCell(ColumnViewer viewer,
 474                                                 ViewerCell currentSelectedCell, Event event) {
 475                                         ViewerCell cell = internalFindSelectedCell(viewer,
 476                                                         currentSelectedCell, event);
 477                                         if (cell != null) {
 478                                                 TableColumn t = AnnotatedPropertyTab.this.viewer.getTable().getColumn(
 479                                                                 cell.getColumnIndex());
 480                                                 AnnotatedPropertyTab.this.viewer.getTable().showColumn(t);
 481                                         }
 482                                         return cell;
 483                                 }
 484                         };
 485
 486                         TableViewerFocusCellManager focusCellManager = new TableViewerFocusCellManager(
 487                                         viewer, new FocusCellOwnerDrawHighlighter(viewer));
 488                         try {
 489                                 Field f = focusCellManager.getClass().getSuperclass()
 490                                                 .getDeclaredField("navigationStrategy");
 491                                 f.setAccessible(true);
 492                                 f.set(focusCellManager, nStrategy);
 493                         } catch (SecurityException e) {
 494                                 e.printStackTrace();
 495                         } catch (NoSuchFieldException e) {
 496                                 e.printStackTrace();
 497                         } catch (IllegalArgumentException e) {
 498                                 e.printStackTrace();
 499                         } catch (IllegalAccessException e) {
 500                                 e.printStackTrace();
 501                         }
 502                         ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
 503                                         viewer) {
 504                                 protected boolean isEditorActivationEvent(
 505                                                 ColumnViewerEditorActivationEvent event) {
 506                                         return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
 507                                                         || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
 508                                                         || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
 509                                                         || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
 510                                 }
 511                         };
 512                         TableViewerEditor.create(viewer, focusCellManager, actSupport,
 513                                         ColumnViewerEditor.TABBING_HORIZONTAL
 514                                                         | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
 515                                                         | ColumnViewerEditor.TABBING_VERTICAL
 516                                                         | ColumnViewerEditor.KEYBOARD_ACTIVATION);
 517                         viewer.getColumnViewerEditor().addEditorActivationListener(
 518                                         new ColumnViewerEditorActivationListener() {
 519                                                 public void afterEditorActivated(
 520                                                                 ColumnViewerEditorActivationEvent event) {
 521                                                 }
 522
 523                                                 public void afterEditorDeactivated(
 524                                                                 ColumnViewerEditorDeactivationEvent event) {
 525                                                 }
 526
 527                                                 public void beforeEditorActivated(
 528                                                                 ColumnViewerEditorActivationEvent event) {
 529                                                         ViewerCell cell = (ViewerCell) event.getSource();
 530                                                         viewer.getTable().showColumn(
 531                                                                         viewer.getTable().getColumn(cell.getColumnIndex()));
 532                                                 }
 533
 534                                                 public void beforeEditorDeactivated(
 535                                                                 ColumnViewerEditorDeactivationEvent event) {
 536                                                 }
 537                                         });
 538                 }
 539
 540
 541
 542
 543                 private IPropertyItem selectedItem = null;
 544                 private Set<IPropertyItem> delayedUpdate = new HashSet<IPropertyItem>();
 545
 546
 547                 @Override
 548                 public void setInput(ISessionContext context, ISelection selection,
 549                                 boolean force) {
 550                         Collection<IG3DNode> nodes = AdaptationUtils.adaptToCollection(selection, IG3DNode.class);
 551                         if (nodes.size() != 1) {
 552                                 if (node != null) {
 553                                         node.removeListener(this);
 554                                         node = null;
 555                                 }
 556                                 return;
 557                         }
 558                         IG3DNode n = nodes.iterator().next();
 559                         if (node != null) {
 560                                 if (!node.equals(n)) {
 561                                         node.removeListener(this);
 562                                         setInput(n);
 563                                 }
 564                         } else {
 565                                 setInput(n);
 566                         }
 567                 }
 568
 569
 570
 571                 private void setInput(IG3DNode node) {
 572                         this.node = node;
 573                         this.node.addListener(this);
 574                         // resolve nodemap
 575                         IG3DNode n = node;
 576                         while (true) {
 577                                 if (n == null) {
 578                                         nodeMap = null;
 579                                         break;
 580                                 }
 581                                 if (n instanceof NodeMapProvider<?,?>) {
 582                                         nodeMap = ((NodeMapProvider<?,?>) n).getNodeMap();
 583                                         if (nodeMap != null)
 584                                                 break;
 585                                 }
 586                                 n = (IG3DNode)n.getParent();
 587                         }
 588                         boolean readOnly =  (node instanceof IStructuralNode && ((IStructuralNode)node).isPartOfInstantiatedModel() && !((IStructuralNode)node).isInstantiatedModelRoot());
 589                         // create label providers
 590                         PropertyValueLabelProvider2 p = new PropertyValueLabelProvider2(this);
 591                         int index = 0;
 592                         for (TableViewerColumn c : valueColumns) {
 593                                 c.setLabelProvider(p);
 594                                 if (!readOnly) {
 595                                         PropertyEditingSupport support = new PropertyEditingSupport(this, viewer, index++, nodeMap);
 596                                         c.setEditingSupport(support);
 597                                 }
 598                         }
 599                         resolvedItems.clear();
 600                         manipulators.clear();
 601                         for (IPropertyItem item : contibutedItems) {
 602                                 if (item instanceof PropertyItem) {
 603                                         resolvedItems.add((PropertyItem)item);
 604                                         manipulators.put((PropertyItem)item, createManipulator((PropertyItem)item, node));
 605                                 }
 606                                 else {
 607                                         CompoundPropertyItem compound = (CompoundPropertyItem)item;
 608                                         Map<PropertyItem, PropertyManipulator> manipulators = createManipulators(compound, node);
 609                                         for (PropertyItem i : manipulators.keySet()) {
 610                                                 resolvedItems.add(i);
 611                                                 this.manipulators.put(i, manipulators.get(i));
 612                                         }
 613                                 }
 614                         }
 615
 616                         viewer.getTable().setEnabled(!readOnly);
 617                         viewer.setInput(resolvedItems);
 618                 }
 619
 620                 @Override
 621                 public void requestFocus() {
 622                         viewer.getTable().forceFocus();
 623                 }
 624
 625                 @Override
 626                 public void dispose() {
 627                         if (node != null) {
 628                                 node.removeListener(this);
 629                                 node = null;
 630                         }
 631
 632                 }
 633
 634                 @Override
 635                 public Control getControl() {
 636                         return viewer.getTable();
 637                 }
 638
 639                 @Override
 640                 public ISelectionProvider getSelectionProvider() {
 641                         return null;
 642                 }
 643
 644                 @Override
 645                 public boolean isDisposed() {
 646                         return viewer.getTable().isDisposed();
 647                 }
 648
 649                 @Override
 650                 public <T extends INode> void nodeAdded(ParentNode<T> node,
 651                                 INode child, String rel) {
 652
 653                 }
 654
 655                 @Override
 656                 public <T extends INode> void nodeRemoved(ParentNode<T> node,
 657                                 INode child, String rel) {
 658
 659                 }
 660
 661                 @Override
 662                 public void propertyChanged(INode node, final String id) {
 663 //                      for (final PropertyItem item : items) {
 664 //                              if (item.id.equals(id)) {
 665 //                                      Display.getDefault().asyncExec(new Runnable() {
 666 //
 667 //                                              @Override
 668 //                                              public void run() {
 669 //                                                      viewer.update(item, null);
 670 //
 671 //                                              }
 672 //                                      });
 673 //                              }
 674 //                      }
 675                         if (Thread.currentThread() == Display.getDefault().getThread()) {
 676                                 if (DEBUG)System.out.println("Viewer refresh " + id);
 677                                 for (PropertyItem item : resolvedItems)
 678                                         if (!item.equals(selectedItem))
 679                                                 viewer.refresh(item);
 680                                 if (selectedItem != null)
 681                                         delayedUpdate.add(selectedItem);
 682                         } else if (!editing){
 683                                 // running delayed refresh when a cell editor is active would cancel cell editing.
 684                                 Display.getDefault().asyncExec(new Runnable() {
 685                                         @Override
 686                                         public void run() {
 687                                                 if (viewer.getTable().isDisposed()) {
 688                                                         if (AnnotatedPropertyTab.this.node != null)
 689                                                                 AnnotatedPropertyTab.this.node.removeListener(AnnotatedPropertyTab.this);
 690                                                         return;
 691                                                 }
 692                                                 if (DEBUG) System.out.println("Viewer threaded refresh " + id);
 693                                                 for (PropertyItem item : resolvedItems)
 694                                                         if (!item.equals(selectedItem))
 695                                                                 viewer.refresh(item);
 696                                                 if (selectedItem != null)
 697                                                         delayedUpdate.add(selectedItem);
 698
 699                                         }
 700                                 });
 701                         } else {
 702                                 for (PropertyItem item : resolvedItems) {
 703                                         delayedUpdate.add(item);
 704                                 }
 705                         }
 706
 707                 }
 708
 709
 710
 711                 @Override
 712                 public void updatePartName(Consumer<String> updateCallback) {
 713                         if (node != null)
 714                                 updateCallback.accept(node.toString());
 715
 716                 }
 717
 718                 public PropertyManipulator getManipulator(PropertyItem item) {
 719                         return manipulators.get(item);
 720                 }
 721
 722                 private boolean editing = false;
 723
 724                 public void setEditing(boolean editing) {
 725                         this.editing = editing;
 726                 }
 727         }
 728
 729
 730
 731         private static class PropertyEditingSupport extends EditingSupport {
 732                 AnnotatedPropertyTab tab;
 733                 int index;
 734                 NodeMap<?,?> nodeMap;
 735                 TableViewer viewer;
 736                 CellEditor editor;
 737
 738                 public PropertyEditingSupport(AnnotatedPropertyTab tab, TableViewer viewer, int index, NodeMap<?,?> nodeMap) {
 739                         super(viewer);
 740                         this.tab = tab;
 741                         this.index = index;
 742                         this.viewer = viewer;
 743                         this.nodeMap = nodeMap;
 744                 }
 745
 746                 @Override
 747                 protected boolean canEdit(Object element) {
 748                         PropertyItem item = (PropertyItem)element;
 749                         if (tab.getManipulator(item).getValueCount() <= index)
 750                                 return false;
 751                         if (item.setter == null)
 752                                 return false;
 753                         if (getValue(element) == null)
 754                                 return false;
 755                         return true;
 756                 }
 757
 758                 @Override
 759                 protected CellEditor getCellEditor(Object element) {
 760
 761                         if (tab.getManipulator((PropertyItem)element).getValueCount() <= index)
 762                                 return null;
 763                         if (editor == null)
 764                                 editor = new TextCellEditor(viewer.getTable(),SWT.NONE) {
 765                                 @Override
 766                                 public void activate() {
 767                                         tab.setEditing(true);
 768                                 }
 769
 770                                 @Override
 771                                 public void deactivate() {
 772                                         super.deactivate();
 773                                         tab.setEditing(false);
 774                                 }
 775                         };
 776                         if (DEBUG)System.err.println("CELL EDITOR: " + element);
 777                         return editor;
 778                 }
 779
 780                 @Override
 781                 protected Object getValue(Object element) {
 782                         PropertyItem item = (PropertyItem)element;
 783                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, obj);
 784                         if (manipulator.getValueCount() <= index)
 785                                 return null;
 786                         Object value = manipulator.getValue(index);
 787                         return value;
 788                 }
 789
 790                 @Override
 791                 protected void setValue(Object element, Object value) {
 792
 793                         PropertyItem item = (PropertyItem)element;
 794                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, obj);
 795                         if (manipulator.getValueCount() <= index)
 796                                 throw new IllegalAccessError("Editing value in index " + index + " is not allowed.");
 797                         if (DEBUG)System.err.println("CELL SET VALUE: " + element + " " + value);
 798                         manipulator.setValue((String)value,index);
 799                         viewer.refresh(item);
 800                         nodeMap.commit();
 801
 802                 }
 803
 804
 805
 806         }
 807
 808         private static class PropertyItemNameProvider extends CellLabelProvider {
 809
 810
 811                 @Override
 812                 public void update(ViewerCell cell) {
 813                         PropertyItem item = (PropertyItem)cell.getElement();
 814
 815                         if (item.name.length() > 0)
 816                                 cell.setText(item.name);
 817                         else
 818                                 cell.setText(item.id);
 819
 820
 821                 }
 822         }
 823
 824         private static class PropertyValueLabelProvider2 extends CellLabelProvider {
 825                 AnnotatedPropertyTab tab;
 826                 //private Object object;
 827
 828                 public PropertyValueLabelProvider2(AnnotatedPropertyTab tab) {
 829                         this.tab = tab;
 830                 }
 831
 832                 @Override
 833                 public void update(ViewerCell cell) {
 834                         PropertyItem item = (PropertyItem)cell.getElement();
 835                         int index = cell.getColumnIndex() -1;
 836                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, object);
 837                         if (manipulator.getValueCount() <= index)
 838                                 return;
 839                         cell.setText(manipulator.getValue(index));
 840                 }
 841         }
 842
 843         private static class PropertyItemContentsProvider implements IStructuredContentProvider {
 844                 @SuppressWarnings("unchecked")
 845                 @Override
 846                 public Object[] getElements(Object inputElement) {
 847                         List<PropertyItem> items = (List<PropertyItem>)inputElement;
 848                         return items.toArray();
 849                 }
 850
 851                 @Override
 852                 public void dispose() {
 853
 854                 }
 855
 856                 @Override
 857                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 858
 859                 }
 860         }
 861
 862
 863
 864         private static ViewerCell getNeighbor(ViewerCell currentCell,
 865                         int directionMask, boolean sameLevel) {
 866                 ViewerRow row;
 867                 if ((directionMask & ViewerCell.ABOVE) == ViewerCell.ABOVE) {
 868                         row = currentCell.getViewerRow().getNeighbor(ViewerRow.ABOVE,
 869                                         sameLevel);
 870                 } else if ((directionMask & ViewerCell.BELOW) == ViewerCell.BELOW) {
 871                         row = currentCell.getViewerRow().getNeighbor(ViewerRow.BELOW,
 872                                         sameLevel);
 873                 } else {
 874                         row = currentCell.getViewerRow();
 875                 }
 876                 if (row != null) {
 877                         int columnIndex;
 878                         columnIndex = getVisualIndex(row, currentCell.getColumnIndex());
 879                         int modifier = 0;
 880                         if ((directionMask & ViewerCell.LEFT) == ViewerCell.LEFT) {
 881                                 modifier = -1;
 882                         } else if ((directionMask & ViewerCell.RIGHT) == ViewerCell.RIGHT) {
 883                                 modifier = 1;
 884                         }
 885                         columnIndex += modifier;
 886                         if (columnIndex >= 0 && columnIndex < row.getColumnCount()) {
 887                                 ViewerCell cell = getCellAtVisualIndex(row, columnIndex);
 888                                 if (cell != null) {
 889                                         while (cell != null
 890                                                         && columnIndex < row.getColumnCount() - 1
 891                                                         && columnIndex > 0) {
 892                                                 if (isVisible(cell)) {
 893                                                         break;
 894                                                 }
 895                                                 columnIndex += modifier;
 896                                                 cell = getCellAtVisualIndex(row, columnIndex);
 897                                                 if (cell == null) {
 898                                                         break;
 899                                                 }
 900                                         }
 901                                 }
 902                                 return cell;
 903                         }
 904                 }
 905                 return null;
 906         }
 907
 908
 909
 910         public static class TableViewerEditor extends ColumnViewerEditor {
 911                 /**
 912                  * This viewer's table editor.
 913                  */
 914                 private TableEditor tableEditor;
 915                 private TableViewerFocusCellManager focusCellManager;
 916                 private int feature;
 917
 918                 /**
 919                  * @param viewer
 920                  *            the viewer the editor is attached to
 921                  * @param focusCellManager
 922                  *            the cell focus manager if one used or <code>null</code>
 923                  * @param editorActivationStrategy
 924                  *            the strategy used to decide about the editor activation
 925                  * @param feature
 926                  *            the feature mask
 927                  */
 928                 TableViewerEditor(TableViewer viewer,
 929                                 TableViewerFocusCellManager focusCellManager,
 930                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
 931                                 int feature) {
 932                         super(viewer, editorActivationStrategy, feature);
 933                         this.feature = feature;
 934                         tableEditor = new TableEditor(viewer.getTable());
 935                         this.focusCellManager = focusCellManager;
 936                 }
 937
 938                 /**
 939                  * Create a customized editor with focusable cells
 940                  *
 941                  * @param viewer
 942                  *            the viewer the editor is created for
 943                  * @param focusCellManager
 944                  *            the cell focus manager if one needed else
 945                  *            <code>null</code>
 946                  * @param editorActivationStrategy
 947                  *            activation strategy to control if an editor activated
 948                  * @param feature
 949                  *            bit mask controlling the editor
 950                  *            <ul>
 951                  *            <li>{@link ColumnViewerEditor#DEFAULT}</li>
 952                  *            <li>{@link ColumnViewerEditor#TABBING_CYCLE_IN_ROW}</li>
 953                  *            <li>{@link ColumnViewerEditor#TABBING_HORIZONTAL}</li>
 954                  *            <li>
 955                  *            {@link ColumnViewerEditor#TABBING_MOVE_TO_ROW_NEIGHBOR}</li>
 956                  *            <li>{@link ColumnViewerEditor#TABBING_VERTICAL}</li>
 957                  *            </ul>
 958                  * @see #create(TableViewer, ColumnViewerEditorActivationStrategy, int)
 959                  */
 960                 public static void create(TableViewer viewer,
 961                                 TableViewerFocusCellManager focusCellManager,
 962                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
 963                                 int feature) {
 964                         TableViewerEditor editor = new TableViewerEditor(viewer,
 965                                         focusCellManager, editorActivationStrategy, feature);
 966                         viewer.setColumnViewerEditor(editor);
 967                         if (focusCellManager != null) {
 968                                 try {
 969                                         Method m = focusCellManager.getClass().getSuperclass()
 970                                                         .getDeclaredMethod("init", null);
 971                                         m.setAccessible(true);
 972                                         m.invoke(focusCellManager, null);
 973                                 } catch (SecurityException e) {
 974                                         e.printStackTrace();
 975                                 } catch (IllegalArgumentException e) {
 976                                         e.printStackTrace();
 977                                 } catch (IllegalAccessException e) {
 978                                         e.printStackTrace();
 979                                 } catch (NoSuchMethodException e) {
 980                                         e.printStackTrace();
 981                                 } catch (InvocationTargetException e) {
 982                                         e.printStackTrace();
 983                                 }
 984                                 // focusCellManager.init();
 985                         }
 986                 }
 987
 988                 /**
 989                  * Create a customized editor whose activation process is customized
 990                  *
 991                  * @param viewer
 992                  *            the viewer the editor is created for
 993                  * @param editorActivationStrategy
 994                  *            activation strategy to control if an editor activated
 995                  * @param feature
 996                  *            bit mask controlling the editor
 997                  *            <ul>
 998                  *            <li>{@link ColumnViewerEditor#DEFAULT}</li>
 999                  *            <li>{@link ColumnViewerEditor#TABBING_CYCLE_IN_ROW}</li>
1000                  *            <li>{@link ColumnViewerEditor#TABBING_HORIZONTAL}</li>
1001                  *            <li>
1002                  *            {@link ColumnViewerEditor#TABBING_MOVE_TO_ROW_NEIGHBOR}</li>
1003                  *            <li>{@link ColumnViewerEditor#TABBING_VERTICAL}</li>
1004                  *            </ul>
1005                  */
1006                 public static void create(TableViewer viewer,
1007                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
1008                                 int feature) {
1009                         create(viewer, null, editorActivationStrategy, feature);
1010                 }
1011
1012                 protected void setEditor(Control w, Item item, int columnNumber) {
1013                         tableEditor.setEditor(w, (TableItem) item, columnNumber);
1014                 }
1015
1016                 protected void setLayoutData(LayoutData layoutData) {
1017                         tableEditor.grabHorizontal = layoutData.grabHorizontal;
1018                         tableEditor.horizontalAlignment = layoutData.horizontalAlignment;
1019                         tableEditor.minimumWidth = layoutData.minimumWidth;
1020                 }
1021
1022                 public ViewerCell getFocusCell() {
1023                         if (focusCellManager != null) {
1024                                 return focusCellManager.getFocusCell();
1025                         }
1026                         return super.getFocusCell();
1027                 }
1028
1029                 protected void updateFocusCell(ViewerCell focusCell,
1030                                 ColumnViewerEditorActivationEvent event) {
1031                         // Update the focus cell when we activated the editor with these 2
1032                         // events
1033                         if (event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC
1034                                         || event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL) {
1035                                 if (focusCellManager != null) {
1036                                         try {
1037                                                 if (DEBUG)System.err.println("FOCUS CELL: " + focusCell);
1038
1039                                                 Method m = AbstractTableViewer.class.getDeclaredMethod(
1040                                                                 "getSelectionFromWidget", null);
1041                                                 m.setAccessible(true);
1042                                                 List l = (List) m.invoke(getViewer(), null);
1043                                                 if (focusCellManager != null) {
1044                                                         m = focusCellManager
1045                                                                         .getClass()
1046                                                                         .getSuperclass()
1047                                                                         .getDeclaredMethod("setFocusCell",
1048                                                                                         new Class[] { ViewerCell.class });
1049                                                         m.setAccessible(true);
1050                                                         m.invoke(focusCellManager,
1051                                                                         new Object[] { focusCell });
1052                                                 }
1053                                                 if (!l.contains(focusCell.getElement())) {
1054                                                         getViewer().setSelection(
1055                                                                         new StructuredSelection(focusCell
1056                                                                                         .getElement()));
1057                                                 }
1058                                         } catch (SecurityException e) {
1059                                                 e.printStackTrace();
1060                                         } catch (IllegalArgumentException e) {
1061                                                 e.printStackTrace();
1062                                         } catch (IllegalAccessException e) {
1063                                                 e.printStackTrace();
1064                                         } catch (NoSuchMethodException e) {
1065                                                 e.printStackTrace();
1066                                         } catch (InvocationTargetException e) {
1067                                                 e.printStackTrace();
1068                                         }
1069                                 }
1070                         }
1071                 }
1072
1073                 protected void processTraverseEvent(int columnIndex, ViewerRow row,
1074                                 TraverseEvent event) {
1075                         ViewerCell cell2edit = null;
1076                         if (event.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
1077                                 event.doit = false;
1078                                 if ((event.stateMask & SWT.CTRL) == SWT.CTRL
1079                                                 && (feature & TABBING_VERTICAL) == TABBING_VERTICAL) {
1080                                         cell2edit = searchCellAboveBelow(row, getViewer(),
1081                                                         columnIndex, true);
1082                                 } else if ((feature & TABBING_HORIZONTAL) == TABBING_HORIZONTAL) {
1083                                         cell2edit = searchPreviousCell(row,
1084                                                         row.getCell(columnIndex), row.getCell(columnIndex),
1085                                                         getViewer());
1086                                 }
1087                         } else if (event.detail == SWT.TRAVERSE_TAB_NEXT) {
1088                                 event.doit = false;
1089                                 if ((event.stateMask & SWT.CTRL) == SWT.CTRL
1090                                                 && (feature & TABBING_VERTICAL) == TABBING_VERTICAL) {
1091                                         cell2edit = searchCellAboveBelow(row, getViewer(),
1092                                                         columnIndex, false);
1093                                 } else if ((feature & TABBING_HORIZONTAL) == TABBING_HORIZONTAL) {
1094                                         cell2edit = searchNextCell(row, row.getCell(columnIndex),
1095                                                         row.getCell(columnIndex), getViewer());
1096                                 }
1097                         }
1098                         if (DEBUG) System.err.println("NEXT CELL: " + cell2edit);
1099                         if (cell2edit != null) {
1100                                 getViewer().getControl().setRedraw(false);
1101                                 ColumnViewerEditorActivationEvent acEvent = new ColumnViewerEditorActivationEvent(
1102                                                 cell2edit, event);
1103                                 try {
1104                                         Method m = ColumnViewer.class
1105                                                         .getDeclaredMethod(
1106                                                                         "triggerEditorActivationEvent",
1107                                                                         new Class[] { ColumnViewerEditorActivationEvent.class });
1108                                         m.setAccessible(true);
1109                                         m.invoke(getViewer(), new Object[] { acEvent });
1110                                 } catch (SecurityException e) {
1111                                         e.printStackTrace();
1112                                 } catch (NoSuchMethodException e) {
1113                                         e.printStackTrace();
1114                                 } catch (IllegalArgumentException e) {
1115                                         e.printStackTrace();
1116                                 } catch (IllegalAccessException e) {
1117                                         e.printStackTrace();
1118                                 } catch (InvocationTargetException e) {
1119                                         e.printStackTrace();
1120                                 }
1121                                 getViewer().getControl().setRedraw(true);
1122                         }
1123                 }
1124
1125                 private ViewerCell searchCellAboveBelow(ViewerRow row,
1126                                 ColumnViewer viewer, int columnIndex, boolean above) {
1127                         ViewerCell rv = null;
1128                         ViewerRow newRow = null;
1129                         if (above) {
1130                                 newRow = row.getNeighbor(ViewerRow.ABOVE, false);
1131                         } else {
1132                                 newRow = row.getNeighbor(ViewerRow.BELOW, false);
1133                         }
1134                         try {
1135                                 if (newRow != null) {
1136                                         Method m = ColumnViewer.class.getDeclaredMethod(
1137                                                         "getViewerColumn", new Class[] { int.class });
1138                                         m.setAccessible(true);
1139                                         ViewerColumn column = (ViewerColumn) m.invoke(viewer,
1140                                                         new Object[] { new Integer(columnIndex) });
1141                                         m = ViewerColumn.class.getDeclaredMethod(
1142                                                         "getEditingSupport", null);
1143                                         m.setAccessible(true);
1144                                         EditingSupport es = (EditingSupport) m.invoke(column, null);
1145                                         if (column != null && es != null) {
1146                                                 m = EditingSupport.class.getDeclaredMethod("canEdit",
1147                                                                 new Class[] { Object.class });
1148                                                 m.setAccessible(true);
1149                                                 Boolean b = (Boolean) m.invoke(es,
1150                                                                 new Object[] { newRow.getItem().getData() });
1151                                                 if (b.booleanValue()) {
1152                                                         rv = newRow.getCell(columnIndex);
1153                                                 }
1154                                         } else {
1155                                                 rv = searchCellAboveBelow(newRow, viewer, columnIndex,
1156                                                                 above);
1157                                         }
1158                                 }
1159                         } catch (Exception e) {
1160                                 e.printStackTrace();
1161                         }
1162                         return rv;
1163                 }
1164
1165                 private ViewerCell searchPreviousCell(ViewerRow row,
1166                                 ViewerCell currentCell, ViewerCell originalCell,
1167                                 ColumnViewer viewer) {
1168                         ViewerCell rv = null;
1169                         ViewerCell previousCell;
1170                         if (currentCell != null) {
1171                                 previousCell = getNeighbor(currentCell, ViewerCell.LEFT, true);
1172                         } else {
1173                                 if (row.getColumnCount() != 0) {
1174                                         previousCell = row.getCell(getCreationIndex(row,
1175                                                         row.getColumnCount() - 1));
1176                                 } else {
1177                                         previousCell = row.getCell(0);
1178                                 }
1179                         }
1180                         // No endless loop
1181                         if (originalCell.equals(previousCell)) {
1182                                 return null;
1183                         }
1184                         if (previousCell != null) {
1185                                 if (isCellEditable(viewer, previousCell)) {
1186                                         rv = previousCell;
1187                                 } else {
1188                                         rv = searchPreviousCell(row, previousCell, originalCell,
1189                                                         viewer);
1190                                 }
1191                         } else {
1192                                 if ((feature & TABBING_CYCLE_IN_ROW) == TABBING_CYCLE_IN_ROW) {
1193                                         rv = searchPreviousCell(row, null, originalCell, viewer);
1194                                 } else if ((feature & TABBING_MOVE_TO_ROW_NEIGHBOR) == TABBING_MOVE_TO_ROW_NEIGHBOR) {
1195                                         ViewerRow rowAbove = row
1196                                                         .getNeighbor(ViewerRow.ABOVE, false);
1197                                         if (rowAbove != null) {
1198                                                 rv = searchPreviousCell(rowAbove, null, originalCell,
1199                                                                 viewer);
1200                                         }
1201                                 }
1202                         }
1203                         return rv;
1204                 }
1205
1206                 private ViewerCell searchNextCell(ViewerRow row,
1207                                 ViewerCell currentCell, ViewerCell originalCell,
1208                                 ColumnViewer viewer) {
1209                         ViewerCell rv = null;
1210                         ViewerCell nextCell;
1211                         if (currentCell != null) {
1212                                 nextCell = getNeighbor(currentCell, ViewerCell.RIGHT, true);
1213                         } else {
1214                                 nextCell = row.getCell(getCreationIndex(row, 0));
1215                         }
1216                         // No endless loop
1217                         if (originalCell.equals(nextCell)) {
1218                                 return null;
1219                         }
1220                         if (nextCell != null) {
1221                                 if (isCellEditable(viewer, nextCell)) {
1222                                         rv = nextCell;
1223                                 } else {
1224                                         rv = searchNextCell(row, nextCell, originalCell, viewer);
1225                                 }
1226                         } else {
1227                                 if ((feature & TABBING_CYCLE_IN_ROW) == TABBING_CYCLE_IN_ROW) {
1228                                         rv = searchNextCell(row, null, originalCell, viewer);
1229                                 } else if ((feature & TABBING_MOVE_TO_ROW_NEIGHBOR) == TABBING_MOVE_TO_ROW_NEIGHBOR) {
1230                                         ViewerRow rowBelow = row
1231                                                         .getNeighbor(ViewerRow.BELOW, false);
1232                                         if (rowBelow != null) {
1233                                                 rv = searchNextCell(rowBelow, null, originalCell,
1234                                                                 viewer);
1235                                         }
1236                                 }
1237                         }
1238                         return rv;
1239                 }
1240
1241                 private boolean isCellEditable(ColumnViewer viewer, ViewerCell cell) {
1242                         try {
1243                                 Method m = ColumnViewer.class.getDeclaredMethod(
1244                                                 "getViewerColumn", new Class[] { int.class });
1245                                 m.setAccessible(true);
1246                                 ViewerColumn column = (ViewerColumn) m.invoke(viewer,
1247                                                 new Object[] { new Integer(cell.getColumnIndex()) });
1248                                 m = ViewerColumn.class.getDeclaredMethod("getEditingSupport",
1249                                                 null);
1250                                 m.setAccessible(true);
1251                                 EditingSupport es = (EditingSupport) m.invoke(column, null);
1252                                 if (column != null && es != null) {
1253                                         m = EditingSupport.class.getDeclaredMethod("canEdit",
1254                                                         new Class[] { Object.class });
1255                                         m.setAccessible(true);
1256                                         // return true;
1257                                         Boolean b = (Boolean) m.invoke(es,
1258                                                         new Object[] { cell.getElement() });
1259                                         return b.booleanValue();
1260                                 }
1261                         } catch (Exception e) {
1262                                 e.printStackTrace();
1263                         }
1264                         return false;
1265                 }
1266         }
1267
1268         // Reimplementation of ViewerCell-Methods
1269         private static int getVisualIndex(ViewerRow row, int creationIndex) {
1270                 TableItem item = (TableItem) row.getItem();
1271                 int[] order = item.getParent().getColumnOrder();
1272                 for (int i = 0; i < order.length; i++) {
1273                         if (order[i] == creationIndex) {
1274                                 return i;
1275                         }
1276                 }
1277                 return creationIndex;
1278         }
1279
1280         private static int getCreationIndex(ViewerRow row, int visualIndex) {
1281                 TableItem item = (TableItem) row.getItem();
1282                 if (item != null && !item.isDisposed() /*
1283                                                                                                  * && hasColumns() &&
1284                                                                                                  * isValidOrderIndex
1285                                                                                                  * (visualIndex)
1286                                                                                                  */) {
1287                         return item.getParent().getColumnOrder()[visualIndex];
1288                 }
1289                 return visualIndex;
1290         }
1291
1292         private static ViewerCell getCellAtVisualIndex(ViewerRow row,
1293                         int visualIndex) {
1294                 return getCell(row, getCreationIndex(row, visualIndex));
1295         }
1296
1297         private static boolean isVisible(ViewerCell cell) {
1298                 return getWidth(cell) > 0;
1299         }
1300
1301         private static int getWidth(ViewerCell cell) {
1302                 TableItem item = (TableItem) cell.getViewerRow().getItem();
1303                 return item.getParent().getColumn(cell.getColumnIndex()).getWidth();
1304         }
1305
1306         private static ViewerCell getCell(ViewerRow row, int index) {
1307                 return row.getCell(index);
1308         }
1309
1310
1311 }