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.Comparator;
  22 import java.util.HashMap;
  23 import java.util.HashSet;
  24 import java.util.LinkedHashMap;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.function.Consumer;
  29
  30 import org.eclipse.jface.layout.GridDataFactory;
  31 import org.eclipse.jface.viewers.AbstractTableViewer;
  32 import org.eclipse.jface.viewers.CellEditor;
  33 import org.eclipse.jface.viewers.CellEditor.LayoutData;
  34 import org.eclipse.jface.viewers.CellLabelProvider;
  35 import org.eclipse.jface.viewers.CellNavigationStrategy;
  36 import org.eclipse.jface.viewers.ColumnViewer;
  37 import org.eclipse.jface.viewers.ColumnViewerEditor;
  38 import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
  39 import org.eclipse.jface.viewers.ColumnViewerEditorActivationListener;
  40 import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
  41 import org.eclipse.jface.viewers.ColumnViewerEditorDeactivationEvent;
  42 import org.eclipse.jface.viewers.EditingSupport;
  43 import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
  44 import org.eclipse.jface.viewers.ISelection;
  45 import org.eclipse.jface.viewers.ISelectionChangedListener;
  46 import org.eclipse.jface.viewers.ISelectionProvider;
  47 import org.eclipse.jface.viewers.IStructuredContentProvider;
  48 import org.eclipse.jface.viewers.SelectionChangedEvent;
  49 import org.eclipse.jface.viewers.StructuredSelection;
  50 import org.eclipse.jface.viewers.TableViewer;
  51 import org.eclipse.jface.viewers.TableViewerColumn;
  52 import org.eclipse.jface.viewers.TableViewerFocusCellManager;
  53 import org.eclipse.jface.viewers.TextCellEditor;
  54 import org.eclipse.jface.viewers.Viewer;
  55 import org.eclipse.jface.viewers.ViewerCell;
  56 import org.eclipse.jface.viewers.ViewerColumn;
  57 import org.eclipse.jface.viewers.ViewerRow;
  58 import org.eclipse.swt.SWT;
  59 import org.eclipse.swt.custom.TableEditor;
  60 import org.eclipse.swt.events.TraverseEvent;
  61 import org.eclipse.swt.widgets.Composite;
  62 import org.eclipse.swt.widgets.Control;
  63 import org.eclipse.swt.widgets.Display;
  64 import org.eclipse.swt.widgets.Event;
  65 import org.eclipse.swt.widgets.Item;
  66 import org.eclipse.swt.widgets.TableColumn;
  67 import org.eclipse.swt.widgets.TableItem;
  68 import org.eclipse.ui.IWorkbenchSite;
  69 import org.simantics.db.management.ISessionContext;
  70 import org.simantics.g3d.property.annotations.CompoundGetPropertyValue;
  71 import org.simantics.g3d.property.annotations.CompoundSetPropertyValue;
  72 import org.simantics.g3d.property.annotations.GetPropertyValue;
  73 import org.simantics.g3d.property.annotations.PropertyTabBlacklist;
  74 import org.simantics.g3d.property.annotations.SetPropertyValue;
  75 import org.simantics.g3d.scenegraph.IG3DNode;
  76 import org.simantics.g3d.scenegraph.NodeMap;
  77 import org.simantics.g3d.scenegraph.NodeMapProvider;
  78 import org.simantics.g3d.scenegraph.base.INode;
  79 import org.simantics.g3d.scenegraph.base.NodeListener;
  80 import org.simantics.g3d.scenegraph.base.ParentNode;
  81 import org.simantics.g3d.scenegraph.structural.IStructuralNode;
  82 import org.simantics.g3d.tools.AdaptationUtils;
  83 import org.simantics.selectionview.IPropertyTab;
  84 import org.simantics.selectionview.IPropertyTab2;
  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                 public String getName();
 254         }
 255
 256         private static class PropertyItem implements IPropertyItem{
 257                 private String id;
 258                 private String name;
 259                 private String tabId;
 260                 private Method getter;
 261                 private Method setter;
 262                 private Class<? extends PropertyManipulator> manipulatorClass;
 263
 264
 265                 public PropertyItem(String id) {
 266                         if (id == null)
 267                                 throw new NullPointerException();
 268                         this.id = id;
 269                 }
 270
 271                 @Override
 272                 public int hashCode() {
 273                         return id.hashCode();
 274                 }
 275
 276                 @Override
 277                 public String getTabId() {
 278                         return tabId;
 279                 }
 280
 281                 @Override
 282                 public String getName() {
 283                     return name;
 284                 }
 285         }
 286
 287         private static class CompoundPropertyItem implements IPropertyItem{
 288                 private String id;
 289                 private String name;
 290                 private String tabId;
 291                 private Method getter;
 292                 private Method setter;
 293                 private PropertyManipulatorFactory manipulatorFactory;
 294
 295
 296                 public CompoundPropertyItem(String id) {
 297                         if (id == null)
 298                                 throw new NullPointerException();
 299                         this.id = id;
 300                 }
 301
 302                 @Override
 303                 public int hashCode() {
 304                         return id.hashCode();
 305                 }
 306
 307                 @Override
 308                 public String getTabId() {
 309                         return tabId;
 310                 }
 311
 312                 @Override
 313         public String getName() {
 314             return name;
 315         }
 316         }
 317
 318         private static class AnnotatedPropertyTabContributor implements PropertyTabContributor {
 319                 private String id;
 320                 List<IPropertyItem> items;
 321
 322                 public AnnotatedPropertyTabContributor(String id, List<IPropertyItem> items) {
 323                         if (id == null)
 324                                 throw new NullPointerException();
 325                         this.id = id;
 326                         this.items = items;
 327                 }
 328
 329                 @Override
 330                 public IPropertyTab create(Composite parent, IWorkbenchSite site,
 331                                 ISessionContext context, Object input) {
 332                         AnnotatedPropertyTab tab = new AnnotatedPropertyTab(id, items);
 333                         tab.createControl(parent, context);
 334                         return tab;
 335                 }
 336
 337                 @Override
 338                 public String getId() {
 339                         return id;
 340                 }
 341
 342         }
 343
 344         private static class AnnotatedPropertyTab implements IPropertyTab2, NodeListener {
 345                 //private String id;
 346                 List<IPropertyItem> contibutedItems;
 347                 List<PropertyItem> resolvedItems = new ArrayList<PropertyItem>();
 348                 private Map<PropertyItem,PropertyManipulator> manipulators = new HashMap<PropertyItem, PropertyManipulator>();
 349
 350                 private TableViewer viewer;
 351
 352                 private INode node;
 353                 private NodeMap<?,?,?> nodeMap;
 354
 355                 private List<TableViewerColumn> valueColumns = new ArrayList<TableViewerColumn>();
 356
 357                 public AnnotatedPropertyTab(String id, List<IPropertyItem> items) {
 358                         //this.id = id;
 359                         this.contibutedItems = items;
 360
 361
 362                 }
 363
 364                 @Override
 365                 public void createControl(Composite parent, ISessionContext context) {
 366                         //parent.setLayout(new FillLayout());
 367                         viewer = new TableViewer(parent, SWT.FULL_SELECTION | SWT.SINGLE);
 368
 369                         GridDataFactory.fillDefaults().align(SWT.FILL, SWT.FILL).grab(true, true).applyTo(viewer.getTable());
 370
 371                         //viewer.setLabelProvider(new AnnotatedTableLabelProvider(object))
 372
 373                         viewer.setContentProvider(new PropertyItemContentsProvider());
 374
 375                         TableViewerColumn name = new TableViewerColumn(viewer, SWT.LEFT);
 376                         //TableViewerColumn value = new TableViewerColumn(viewer, SWT.LEFT);
 377                         name.setLabelProvider(new PropertyItemNameProvider());
 378                         //value.setLabelProvider(new PropertyValueLabelProvider(null));
 379                         name.getColumn().setText("Property");
 380                         //value.getColumn().setText("Value");
 381                         name.getColumn().setWidth(200);
 382                         //value.getColumn().setWidth(200);
 383                         name.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
 384
 385                                 @Override
 386                                 public void selectionChanged(SelectionChangedEvent event) {
 387                                         PropertyItem item = AdaptationUtils.adaptToSingle(event.getSelection(),PropertyItem.class);
 388                                         if (item != null) {
 389                                                 PropertyManipulator manipulator = manipulators.get(item);//createManipulator(item, null);
 390                                                 for (int i = 0; i < valueColumns.size(); i++) {
 391                                                         TableViewerColumn c = valueColumns.get(i);
 392                                                         if (i < manipulator.getValueCount()) {
 393                                                                 c.getColumn().setText(manipulator.getDescription(i));
 394                                                         } else {
 395                                                                 c.getColumn().setText("");
 396                                                         }
 397                                                 }
 398                                         }
 399
 400                                 }
 401                         });
 402
 403                         viewer.getTable().setHeaderVisible(true);
 404                         viewer.getTable().setLinesVisible(true);
 405                         viewer.addSelectionChangedListener(new ISelectionChangedListener() {
 406
 407                                 @Override
 408                                 public void selectionChanged(SelectionChangedEvent event) {
 409                                         PropertyItem item = AdaptationUtils.adaptToSingle(event.getSelection(), PropertyItem.class);
 410                                         selectedItem = item;
 411                                         if (!manipulators.get(selectedItem).getEditMode())
 412                                                 manipulators.get(selectedItem).setEditMode(true);
 413
 414
 415                                         for (IPropertyItem i : delayedUpdate) {
 416                                                 if (!i.equals(selectedItem)) {
 417                                                         manipulators.get(i).setEditMode(false);
 418                                                         viewer.update(i,null);
 419                                                 }
 420                                         }
 421                                         if (delayedUpdate.contains(selectedItem)) {
 422                                                 delayedUpdate.clear();
 423                                                 delayedUpdate.add(selectedItem);
 424                                         } else {
 425                                                 delayedUpdate.clear();
 426                                         }
 427                                 }
 428                         });
 429
 430                         CellNavigationStrategy nStrategy = new CellNavigationStrategy() {
 431                                 private ViewerCell internalFindSelectedCell(
 432                                                 ColumnViewer viewer, ViewerCell currentSelectedCell,
 433                                                 Event event) {
 434                                         switch (event.keyCode) {
 435                                         case SWT.ARROW_UP:
 436                                                 if (currentSelectedCell != null) {
 437                                                         return getNeighbor(currentSelectedCell,
 438                                                                         ViewerCell.ABOVE, false);
 439                                                 }
 440                                                 break;
 441                                         case SWT.ARROW_DOWN:
 442                                                 if (currentSelectedCell != null) {
 443                                                         return getNeighbor(currentSelectedCell,
 444                                                                         ViewerCell.BELOW, false);
 445                                                 }
 446                                                 break;
 447                                         case SWT.ARROW_LEFT:
 448                                                 if (currentSelectedCell != null) {
 449                                                         return getNeighbor(currentSelectedCell,
 450                                                                         ViewerCell.LEFT, true);
 451                                                 }
 452                                                 break;
 453                                         case SWT.ARROW_RIGHT:
 454                                                 if (currentSelectedCell != null) {
 455                                                         return getNeighbor(currentSelectedCell,
 456                                                                         ViewerCell.RIGHT, true);
 457                                                 }
 458                                                 break;
 459                                         }
 460                                         return null;
 461                                 }
 462
 463                                 public ViewerCell findSelectedCell(ColumnViewer viewer,
 464                                                 ViewerCell currentSelectedCell, Event event) {
 465                                         ViewerCell cell = internalFindSelectedCell(viewer,
 466                                                         currentSelectedCell, event);
 467                                         if (cell != null) {
 468                                                 TableColumn t = AnnotatedPropertyTab.this.viewer.getTable().getColumn(
 469                                                                 cell.getColumnIndex());
 470                                                 AnnotatedPropertyTab.this.viewer.getTable().showColumn(t);
 471                                         }
 472                                         return cell;
 473                                 }
 474                         };
 475
 476                         TableViewerFocusCellManager focusCellManager = new TableViewerFocusCellManager(
 477                                         viewer, new FocusCellOwnerDrawHighlighter(viewer));
 478                         try {
 479                                 Field f = focusCellManager.getClass().getSuperclass()
 480                                                 .getDeclaredField("navigationStrategy");
 481                                 f.setAccessible(true);
 482                                 f.set(focusCellManager, nStrategy);
 483                         } catch (SecurityException e) {
 484                                 e.printStackTrace();
 485                         } catch (NoSuchFieldException e) {
 486                                 e.printStackTrace();
 487                         } catch (IllegalArgumentException e) {
 488                                 e.printStackTrace();
 489                         } catch (IllegalAccessException e) {
 490                                 e.printStackTrace();
 491                         }
 492                         ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(
 493                                         viewer) {
 494                                 protected boolean isEditorActivationEvent(
 495                                                 ColumnViewerEditorActivationEvent event) {
 496                                         return event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL
 497                                                         || event.eventType == ColumnViewerEditorActivationEvent.MOUSE_DOUBLE_CLICK_SELECTION
 498                                                         || (event.eventType == ColumnViewerEditorActivationEvent.KEY_PRESSED && event.keyCode == SWT.CR)
 499                                                         || event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
 500                                 }
 501                         };
 502                         TableViewerEditor.create(viewer, focusCellManager, actSupport,
 503                                         ColumnViewerEditor.TABBING_HORIZONTAL
 504                                                         | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
 505                                                         | ColumnViewerEditor.TABBING_VERTICAL
 506                                                         | ColumnViewerEditor.KEYBOARD_ACTIVATION);
 507                         viewer.getColumnViewerEditor().addEditorActivationListener(
 508                                         new ColumnViewerEditorActivationListener() {
 509                                                 public void afterEditorActivated(
 510                                                                 ColumnViewerEditorActivationEvent event) {
 511                                                 }
 512
 513                                                 public void afterEditorDeactivated(
 514                                                                 ColumnViewerEditorDeactivationEvent event) {
 515                                                 }
 516
 517                                                 public void beforeEditorActivated(
 518                                                                 ColumnViewerEditorActivationEvent event) {
 519                                                         ViewerCell cell = (ViewerCell) event.getSource();
 520                                                         viewer.getTable().showColumn(
 521                                                                         viewer.getTable().getColumn(cell.getColumnIndex()));
 522                                                 }
 523
 524                                                 public void beforeEditorDeactivated(
 525                                                                 ColumnViewerEditorDeactivationEvent event) {
 526                                                 }
 527                                         });
 528                 }
 529
 530
 531
 532
 533                 private IPropertyItem selectedItem = null;
 534                 private Set<IPropertyItem> delayedUpdate = new HashSet<IPropertyItem>();
 535
 536
 537                 @Override
 538                 public void setInput(ISessionContext context, ISelection selection,
 539                                 boolean force) {
 540                         Collection<INode> nodes = AdaptationUtils.adaptToCollection(selection, INode.class);
 541                         if (nodes.size() != 1) {
 542                                 if (node != null) {
 543                                         node.removeListener(this);
 544                                         node = null;
 545                                 }
 546                                 return;
 547                         }
 548                         INode n = nodes.iterator().next();
 549                         if (node != null) {
 550                                 if (!node.equals(n)) {
 551                                         node.removeListener(this);
 552                                         setInput(n);
 553                                 }
 554                         } else {
 555                                 setInput(n);
 556                         }
 557                 }
 558
 559
 560
 561                 private void setInput(INode node) {
 562                         this.node = node;
 563                         this.node.addListener(this);
 564                         // resolve nodemap
 565                         INode n = node;
 566                         while (true) {
 567                                 if (n == null) {
 568                                         nodeMap = null;
 569                                         break;
 570                                 }
 571                                 if (n instanceof NodeMapProvider<?,?,?>) {
 572                                         nodeMap = ((NodeMapProvider<?,?,?>) n).getNodeMap();
 573                                         if (nodeMap != null)
 574                                                 break;
 575                                 }
 576                                 n = (IG3DNode)n.getParent();
 577                         }
 578                         boolean readOnly =  (node instanceof IStructuralNode && ((IStructuralNode)node).isPartOfInstantiatedModel() && !((IStructuralNode)node).isInstantiatedModelRoot());
 579
 580                         resolvedItems.clear();
 581                         manipulators.clear();
 582                         for (IPropertyItem item : contibutedItems) {
 583                                 if (item instanceof PropertyItem) {
 584                                         resolvedItems.add((PropertyItem)item);
 585                                         manipulators.put((PropertyItem)item, createManipulator((PropertyItem)item, node));
 586                                 }
 587                                 else {
 588                                         CompoundPropertyItem compound = (CompoundPropertyItem)item;
 589                                         Map<PropertyItem, PropertyManipulator> manipulators = createManipulators(compound, node);
 590                                         for (PropertyItem i : manipulators.keySet()) {
 591                                                 resolvedItems.add(i);
 592                                                 this.manipulators.put(i, manipulators.get(i));
 593                                         }
 594                                 }
 595                         }
 596
 597                         int valueCount = 0;
 598                         for (PropertyManipulator manipulator : manipulators.values()) {
 599                             if (valueCount < manipulator.getValueCount())
 600                    valueCount = manipulator.getValueCount();
 601                         }
 602             for (int i = 0; i < valueCount; i++) {
 603                 TableViewerColumn value = new TableViewerColumn(viewer, SWT.LEFT);
 604                 //value.getColumn().setText("Value " + (i+1));
 605                 value.getColumn().setText("");
 606                 value.getColumn().setWidth(200);
 607                 valueColumns.add(value);
 608                 //value.setEditingSupport(new )
 609             }
 610
 611             // create label providers
 612             PropertyValueLabelProvider2 p = new PropertyValueLabelProvider2(this);
 613             int index = 0;
 614             for (TableViewerColumn c : valueColumns) {
 615                 c.setLabelProvider(p);
 616                 if (!readOnly) {
 617                     PropertyEditingSupport support = new PropertyEditingSupport(this, viewer, index++, nodeMap);
 618                     c.setEditingSupport(support);
 619                 }
 620             }
 621                         Collections.sort(resolvedItems, new Comparator<IPropertyItem>() {
 622                             @Override
 623                             public int compare(IPropertyItem o1, IPropertyItem o2) {
 624                                 return o1.getName().compareTo(o2.getName());
 625                             }
 626             });
 627                         viewer.getTable().setEnabled(!readOnly);
 628                         viewer.setInput(resolvedItems);
 629                 }
 630
 631                 @Override
 632                 public void requestFocus() {
 633                         viewer.getTable().forceFocus();
 634                 }
 635
 636                 @Override
 637                 public void dispose() {
 638                         if (node != null) {
 639                                 node.removeListener(this);
 640                                 node = null;
 641                         }
 642
 643                 }
 644
 645                 @Override
 646                 public Control getControl() {
 647                         return viewer.getTable();
 648                 }
 649
 650                 @Override
 651                 public ISelectionProvider getSelectionProvider() {
 652                         return null;
 653                 }
 654
 655                 @Override
 656                 public boolean isDisposed() {
 657                         return viewer.getTable().isDisposed();
 658                 }
 659
 660                 @Override
 661                 public <T extends INode> void nodeAdded(ParentNode<T> node,
 662                                 INode child, String rel) {
 663
 664                 }
 665
 666                 @Override
 667                 public <T extends INode> void nodeRemoved(ParentNode<T> node,
 668                                 INode child, String rel) {
 669
 670                 }
 671
 672                 @Override
 673                 public void propertyChanged(INode node, final String id) {
 674 //                      for (final PropertyItem item : items) {
 675 //                              if (item.id.equals(id)) {
 676 //                                      Display.getDefault().asyncExec(new Runnable() {
 677 //
 678 //                                              @Override
 679 //                                              public void run() {
 680 //                                                      viewer.update(item, null);
 681 //
 682 //                                              }
 683 //                                      });
 684 //                              }
 685 //                      }
 686                         if (Thread.currentThread() == Display.getDefault().getThread()) {
 687                                 if (viewer.getTable().isDisposed())
 688                                         return;
 689                                 if (DEBUG)System.out.println("Viewer refresh " + id);
 690                                 for (PropertyItem item : resolvedItems)
 691                                         if (!item.equals(selectedItem))
 692                                                 viewer.refresh(item);
 693                                 if (selectedItem != null)
 694                                         delayedUpdate.add(selectedItem);
 695                         } else if (!editing){
 696                                 // running delayed refresh when a cell editor is active would cancel cell editing.
 697                                 Display.getDefault().asyncExec(new Runnable() {
 698                                         @Override
 699                                         public void run() {
 700                                                 if (viewer.getTable().isDisposed()) {
 701                                                         if (AnnotatedPropertyTab.this.node != null)
 702                                                                 AnnotatedPropertyTab.this.node.removeListener(AnnotatedPropertyTab.this);
 703                                                         return;
 704                                                 }
 705                                                 if (DEBUG) System.out.println("Viewer threaded refresh " + id);
 706                                                 for (PropertyItem item : resolvedItems)
 707                                                         if (!item.equals(selectedItem))
 708                                                                 viewer.refresh(item);
 709                                                 if (selectedItem != null)
 710                                                         delayedUpdate.add(selectedItem);
 711
 712                                         }
 713                                 });
 714                         } else {
 715                                 for (PropertyItem item : resolvedItems) {
 716                                         delayedUpdate.add(item);
 717                                 }
 718                         }
 719
 720                 }
 721
 722
 723
 724                 @Override
 725                 public void updatePartName(Consumer<String> updateCallback) {
 726                         if (node != null)
 727                                 updateCallback.accept(node.toString());
 728
 729                 }
 730
 731                 public PropertyManipulator getManipulator(PropertyItem item) {
 732                         return manipulators.get(item);
 733                 }
 734
 735                 private boolean editing = false;
 736
 737                 public void setEditing(boolean editing) {
 738                         this.editing = editing;
 739                 }
 740         }
 741
 742
 743
 744         private static class PropertyEditingSupport extends EditingSupport {
 745                 AnnotatedPropertyTab tab;
 746                 int index;
 747                 NodeMap<?,?,?> nodeMap;
 748                 TableViewer viewer;
 749                 CellEditor editor;
 750
 751                 public PropertyEditingSupport(AnnotatedPropertyTab tab, TableViewer viewer, int index, NodeMap<?,?,?> nodeMap) {
 752                         super(viewer);
 753                         this.tab = tab;
 754                         this.index = index;
 755                         this.viewer = viewer;
 756                         this.nodeMap = nodeMap;
 757                 }
 758
 759                 @Override
 760                 protected boolean canEdit(Object element) {
 761                         PropertyItem item = (PropertyItem)element;
 762                         if (tab.getManipulator(item).getValueCount() <= index)
 763                                 return false;
 764                         if (item.setter == null)
 765                                 return false;
 766                         if (getValue(element) == null)
 767                                 return false;
 768                         return true;
 769                 }
 770
 771                 @Override
 772                 protected CellEditor getCellEditor(Object element) {
 773
 774                         if (tab.getManipulator((PropertyItem)element).getValueCount() <= index)
 775                                 return null;
 776                         if (editor == null)
 777                                 editor = new TextCellEditor(viewer.getTable(),SWT.NONE) {
 778                                 @Override
 779                                 public void activate() {
 780                                         tab.setEditing(true);
 781                                 }
 782
 783                                 @Override
 784                                 public void deactivate() {
 785                                         super.deactivate();
 786                                         tab.setEditing(false);
 787                                 }
 788                         };
 789                         if (DEBUG)System.err.println("CELL EDITOR: " + element);
 790                         return editor;
 791                 }
 792
 793                 @Override
 794                 protected Object getValue(Object element) {
 795                         PropertyItem item = (PropertyItem)element;
 796                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, obj);
 797                         if (manipulator.getValueCount() <= index)
 798                                 return null;
 799                         Object value = manipulator.getValue(index);
 800                         return value;
 801                 }
 802
 803                 @Override
 804                 protected void setValue(Object element, Object value) {
 805
 806                         PropertyItem item = (PropertyItem)element;
 807                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, obj);
 808                         if (manipulator.getValueCount() <= index)
 809                                 throw new IllegalAccessError("Editing value in index " + index + " is not allowed.");
 810                         if (DEBUG)System.err.println("CELL SET VALUE: " + element + " " + value);
 811                         manipulator.setValue((String)value,index);
 812                         viewer.refresh(item);
 813                         nodeMap.commit("Set " + item.id + " value to " + value);
 814
 815                 }
 816
 817
 818
 819         }
 820
 821         private static class PropertyItemNameProvider extends CellLabelProvider {
 822
 823
 824                 @Override
 825                 public void update(ViewerCell cell) {
 826                         PropertyItem item = (PropertyItem)cell.getElement();
 827
 828                         if (item.name.length() > 0)
 829                                 cell.setText(item.name);
 830                         else
 831                                 cell.setText(item.id);
 832
 833
 834                 }
 835         }
 836
 837         private static class PropertyValueLabelProvider2 extends CellLabelProvider {
 838                 AnnotatedPropertyTab tab;
 839                 //private Object object;
 840
 841                 public PropertyValueLabelProvider2(AnnotatedPropertyTab tab) {
 842                         this.tab = tab;
 843                 }
 844
 845                 @Override
 846                 public void update(ViewerCell cell) {
 847                         PropertyItem item = (PropertyItem)cell.getElement();
 848                         int index = cell.getColumnIndex() -1;
 849                         PropertyManipulator manipulator = tab.getManipulator(item);//createManipulator(item, object);
 850                         if (manipulator.getValueCount() <= index)
 851                                 return;
 852                         cell.setText(manipulator.getValue(index));
 853                 }
 854         }
 855
 856         private static class PropertyItemContentsProvider implements IStructuredContentProvider {
 857                 @SuppressWarnings("unchecked")
 858                 @Override
 859                 public Object[] getElements(Object inputElement) {
 860                         List<PropertyItem> items = (List<PropertyItem>)inputElement;
 861                         return items.toArray();
 862                 }
 863
 864                 @Override
 865                 public void dispose() {
 866
 867                 }
 868
 869                 @Override
 870                 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 871
 872                 }
 873         }
 874
 875
 876
 877         private static ViewerCell getNeighbor(ViewerCell currentCell,
 878                         int directionMask, boolean sameLevel) {
 879                 ViewerRow row;
 880                 if ((directionMask & ViewerCell.ABOVE) == ViewerCell.ABOVE) {
 881                         row = currentCell.getViewerRow().getNeighbor(ViewerRow.ABOVE,
 882                                         sameLevel);
 883                 } else if ((directionMask & ViewerCell.BELOW) == ViewerCell.BELOW) {
 884                         row = currentCell.getViewerRow().getNeighbor(ViewerRow.BELOW,
 885                                         sameLevel);
 886                 } else {
 887                         row = currentCell.getViewerRow();
 888                 }
 889                 if (row != null) {
 890                         int columnIndex;
 891                         columnIndex = getVisualIndex(row, currentCell.getColumnIndex());
 892                         int modifier = 0;
 893                         if ((directionMask & ViewerCell.LEFT) == ViewerCell.LEFT) {
 894                                 modifier = -1;
 895                         } else if ((directionMask & ViewerCell.RIGHT) == ViewerCell.RIGHT) {
 896                                 modifier = 1;
 897                         }
 898                         columnIndex += modifier;
 899                         if (columnIndex >= 0 && columnIndex < row.getColumnCount()) {
 900                                 ViewerCell cell = getCellAtVisualIndex(row, columnIndex);
 901                                 if (cell != null) {
 902                                         while (cell != null
 903                                                         && columnIndex < row.getColumnCount() - 1
 904                                                         && columnIndex > 0) {
 905                                                 if (isVisible(cell)) {
 906                                                         break;
 907                                                 }
 908                                                 columnIndex += modifier;
 909                                                 cell = getCellAtVisualIndex(row, columnIndex);
 910                                                 if (cell == null) {
 911                                                         break;
 912                                                 }
 913                                         }
 914                                 }
 915                                 return cell;
 916                         }
 917                 }
 918                 return null;
 919         }
 920
 921
 922
 923         public static class TableViewerEditor extends ColumnViewerEditor {
 924                 /**
 925                  * This viewer's table editor.
 926                  */
 927                 private TableEditor tableEditor;
 928                 private TableViewerFocusCellManager focusCellManager;
 929                 private int feature;
 930
 931                 /**
 932                  * @param viewer
 933                  *            the viewer the editor is attached to
 934                  * @param focusCellManager
 935                  *            the cell focus manager if one used or <code>null</code>
 936                  * @param editorActivationStrategy
 937                  *            the strategy used to decide about the editor activation
 938                  * @param feature
 939                  *            the feature mask
 940                  */
 941                 TableViewerEditor(TableViewer viewer,
 942                                 TableViewerFocusCellManager focusCellManager,
 943                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
 944                                 int feature) {
 945                         super(viewer, editorActivationStrategy, feature);
 946                         this.feature = feature;
 947                         tableEditor = new TableEditor(viewer.getTable());
 948                         this.focusCellManager = focusCellManager;
 949                 }
 950
 951                 /**
 952                  * Create a customized editor with focusable cells
 953                  *
 954                  * @param viewer
 955                  *            the viewer the editor is created for
 956                  * @param focusCellManager
 957                  *            the cell focus manager if one needed else
 958                  *            <code>null</code>
 959                  * @param editorActivationStrategy
 960                  *            activation strategy to control if an editor activated
 961                  * @param feature
 962                  *            bit mask controlling the editor
 963                  *            <ul>
 964                  *            <li>{@link ColumnViewerEditor#DEFAULT}</li>
 965                  *            <li>{@link ColumnViewerEditor#TABBING_CYCLE_IN_ROW}</li>
 966                  *            <li>{@link ColumnViewerEditor#TABBING_HORIZONTAL}</li>
 967                  *            <li>
 968                  *            {@link ColumnViewerEditor#TABBING_MOVE_TO_ROW_NEIGHBOR}</li>
 969                  *            <li>{@link ColumnViewerEditor#TABBING_VERTICAL}</li>
 970                  *            </ul>
 971                  * @see #create(TableViewer, ColumnViewerEditorActivationStrategy, int)
 972                  */
 973                 public static void create(TableViewer viewer,
 974                                 TableViewerFocusCellManager focusCellManager,
 975                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
 976                                 int feature) {
 977                         TableViewerEditor editor = new TableViewerEditor(viewer,
 978                                         focusCellManager, editorActivationStrategy, feature);
 979                         viewer.setColumnViewerEditor(editor);
 980                         if (focusCellManager != null) {
 981                                 try {
 982                                         Method m = focusCellManager.getClass().getSuperclass()
 983                                                         .getDeclaredMethod("init", null);
 984                                         m.setAccessible(true);
 985                                         m.invoke(focusCellManager, null);
 986                                 } catch (SecurityException e) {
 987                                         e.printStackTrace();
 988                                 } catch (IllegalArgumentException e) {
 989                                         e.printStackTrace();
 990                                 } catch (IllegalAccessException e) {
 991                                         e.printStackTrace();
 992                                 } catch (NoSuchMethodException e) {
 993                                         e.printStackTrace();
 994                                 } catch (InvocationTargetException e) {
 995                                         e.printStackTrace();
 996                                 }
 997                                 // focusCellManager.init();
 998                         }
 999                 }
1000
1001                 /**
1002                  * Create a customized editor whose activation process is customized
1003                  *
1004                  * @param viewer
1005                  *            the viewer the editor is created for
1006                  * @param editorActivationStrategy
1007                  *            activation strategy to control if an editor activated
1008                  * @param feature
1009                  *            bit mask controlling the editor
1010                  *            <ul>
1011                  *            <li>{@link ColumnViewerEditor#DEFAULT}</li>
1012                  *            <li>{@link ColumnViewerEditor#TABBING_CYCLE_IN_ROW}</li>
1013                  *            <li>{@link ColumnViewerEditor#TABBING_HORIZONTAL}</li>
1014                  *            <li>
1015                  *            {@link ColumnViewerEditor#TABBING_MOVE_TO_ROW_NEIGHBOR}</li>
1016                  *            <li>{@link ColumnViewerEditor#TABBING_VERTICAL}</li>
1017                  *            </ul>
1018                  */
1019                 public static void create(TableViewer viewer,
1020                                 ColumnViewerEditorActivationStrategy editorActivationStrategy,
1021                                 int feature) {
1022                         create(viewer, null, editorActivationStrategy, feature);
1023                 }
1024
1025                 protected void setEditor(Control w, Item item, int columnNumber) {
1026                         tableEditor.setEditor(w, (TableItem) item, columnNumber);
1027                 }
1028
1029                 protected void setLayoutData(LayoutData layoutData) {
1030                         tableEditor.grabHorizontal = layoutData.grabHorizontal;
1031                         tableEditor.horizontalAlignment = layoutData.horizontalAlignment;
1032                         tableEditor.minimumWidth = layoutData.minimumWidth;
1033                 }
1034
1035                 public ViewerCell getFocusCell() {
1036                         if (focusCellManager != null) {
1037                                 return focusCellManager.getFocusCell();
1038                         }
1039                         return super.getFocusCell();
1040                 }
1041
1042                 protected void updateFocusCell(ViewerCell focusCell,
1043                                 ColumnViewerEditorActivationEvent event) {
1044                         // Update the focus cell when we activated the editor with these 2
1045                         // events
1046                         if (event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC
1047                                         || event.eventType == ColumnViewerEditorActivationEvent.TRAVERSAL) {
1048                                 if (focusCellManager != null) {
1049                                         try {
1050                                                 if (DEBUG)System.err.println("FOCUS CELL: " + focusCell);
1051
1052                                                 Method m = AbstractTableViewer.class.getDeclaredMethod(
1053                                                                 "getSelectionFromWidget", null);
1054                                                 m.setAccessible(true);
1055                                                 List l = (List) m.invoke(getViewer(), null);
1056                                                 if (focusCellManager != null) {
1057                                                         m = focusCellManager
1058                                                                         .getClass()
1059                                                                         .getSuperclass()
1060                                                                         .getDeclaredMethod("setFocusCell",
1061                                                                                         new Class[] { ViewerCell.class });
1062                                                         m.setAccessible(true);
1063                                                         m.invoke(focusCellManager,
1064                                                                         new Object[] { focusCell });
1065                                                 }
1066                                                 if (!l.contains(focusCell.getElement())) {
1067                                                         getViewer().setSelection(
1068                                                                         new StructuredSelection(focusCell
1069                                                                                         .getElement()));
1070                                                 }
1071                                         } catch (SecurityException e) {
1072                                                 e.printStackTrace();
1073                                         } catch (IllegalArgumentException e) {
1074                                                 e.printStackTrace();
1075                                         } catch (IllegalAccessException e) {
1076                                                 e.printStackTrace();
1077                                         } catch (NoSuchMethodException e) {
1078                                                 e.printStackTrace();
1079                                         } catch (InvocationTargetException e) {
1080                                                 e.printStackTrace();
1081                                         }
1082                                 }
1083                         }
1084                 }
1085
1086                 protected void processTraverseEvent(int columnIndex, ViewerRow row,
1087                                 TraverseEvent event) {
1088                         ViewerCell cell2edit = null;
1089                         if (event.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
1090                                 event.doit = false;
1091                                 if ((event.stateMask & SWT.CTRL) == SWT.CTRL
1092                                                 && (feature & TABBING_VERTICAL) == TABBING_VERTICAL) {
1093                                         cell2edit = searchCellAboveBelow(row, getViewer(),
1094                                                         columnIndex, true);
1095                                 } else if ((feature & TABBING_HORIZONTAL) == TABBING_HORIZONTAL) {
1096                                         cell2edit = searchPreviousCell(row,
1097                                                         row.getCell(columnIndex), row.getCell(columnIndex),
1098                                                         getViewer());
1099                                 }
1100                         } else if (event.detail == SWT.TRAVERSE_TAB_NEXT) {
1101                                 event.doit = false;
1102                                 if ((event.stateMask & SWT.CTRL) == SWT.CTRL
1103                                                 && (feature & TABBING_VERTICAL) == TABBING_VERTICAL) {
1104                                         cell2edit = searchCellAboveBelow(row, getViewer(),
1105                                                         columnIndex, false);
1106                                 } else if ((feature & TABBING_HORIZONTAL) == TABBING_HORIZONTAL) {
1107                                         cell2edit = searchNextCell(row, row.getCell(columnIndex),
1108                                                         row.getCell(columnIndex), getViewer());
1109                                 }
1110                         }
1111                         if (DEBUG) System.err.println("NEXT CELL: " + cell2edit);
1112                         if (cell2edit != null) {
1113                                 getViewer().getControl().setRedraw(false);
1114                                 ColumnViewerEditorActivationEvent acEvent = new ColumnViewerEditorActivationEvent(
1115                                                 cell2edit, event);
1116                                 try {
1117                                         Method m = ColumnViewer.class
1118                                                         .getDeclaredMethod(
1119                                                                         "triggerEditorActivationEvent",
1120                                                                         new Class[] { ColumnViewerEditorActivationEvent.class });
1121                                         m.setAccessible(true);
1122                                         m.invoke(getViewer(), new Object[] { acEvent });
1123                                 } catch (SecurityException e) {
1124                                         e.printStackTrace();
1125                                 } catch (NoSuchMethodException e) {
1126                                         e.printStackTrace();
1127                                 } catch (IllegalArgumentException e) {
1128                                         e.printStackTrace();
1129                                 } catch (IllegalAccessException e) {
1130                                         e.printStackTrace();
1131                                 } catch (InvocationTargetException e) {
1132                                         e.printStackTrace();
1133                                 }
1134                                 getViewer().getControl().setRedraw(true);
1135                         }
1136                 }
1137
1138                 private ViewerCell searchCellAboveBelow(ViewerRow row,
1139                                 ColumnViewer viewer, int columnIndex, boolean above) {
1140                         ViewerCell rv = null;
1141                         ViewerRow newRow = null;
1142                         if (above) {
1143                                 newRow = row.getNeighbor(ViewerRow.ABOVE, false);
1144                         } else {
1145                                 newRow = row.getNeighbor(ViewerRow.BELOW, false);
1146                         }
1147                         try {
1148                                 if (newRow != null) {
1149                                         Method m = ColumnViewer.class.getDeclaredMethod(
1150                                                         "getViewerColumn", new Class[] { int.class });
1151                                         m.setAccessible(true);
1152                                         ViewerColumn column = (ViewerColumn) m.invoke(viewer,
1153                                                         new Object[] { new Integer(columnIndex) });
1154                                         m = ViewerColumn.class.getDeclaredMethod(
1155                                                         "getEditingSupport", null);
1156                                         m.setAccessible(true);
1157                                         EditingSupport es = (EditingSupport) m.invoke(column, null);
1158                                         if (column != null && es != null) {
1159                                                 m = EditingSupport.class.getDeclaredMethod("canEdit",
1160                                                                 new Class[] { Object.class });
1161                                                 m.setAccessible(true);
1162                                                 Boolean b = (Boolean) m.invoke(es,
1163                                                                 new Object[] { newRow.getItem().getData() });
1164                                                 if (b.booleanValue()) {
1165                                                         rv = newRow.getCell(columnIndex);
1166                                                 }
1167                                         } else {
1168                                                 rv = searchCellAboveBelow(newRow, viewer, columnIndex,
1169                                                                 above);
1170                                         }
1171                                 }
1172                         } catch (Exception e) {
1173                                 e.printStackTrace();
1174                         }
1175                         return rv;
1176                 }
1177
1178                 private ViewerCell searchPreviousCell(ViewerRow row,
1179                                 ViewerCell currentCell, ViewerCell originalCell,
1180                                 ColumnViewer viewer) {
1181                         ViewerCell rv = null;
1182                         ViewerCell previousCell;
1183                         if (currentCell != null) {
1184                                 previousCell = getNeighbor(currentCell, ViewerCell.LEFT, true);
1185                         } else {
1186                                 if (row.getColumnCount() != 0) {
1187                                         previousCell = row.getCell(getCreationIndex(row,
1188                                                         row.getColumnCount() - 1));
1189                                 } else {
1190                                         previousCell = row.getCell(0);
1191                                 }
1192                         }
1193                         // No endless loop
1194                         if (originalCell.equals(previousCell)) {
1195                                 return null;
1196                         }
1197                         if (previousCell != null) {
1198                                 if (isCellEditable(viewer, previousCell)) {
1199                                         rv = previousCell;
1200                                 } else {
1201                                         rv = searchPreviousCell(row, previousCell, originalCell,
1202                                                         viewer);
1203                                 }
1204                         } else {
1205                                 if ((feature & TABBING_CYCLE_IN_ROW) == TABBING_CYCLE_IN_ROW) {
1206                                         rv = searchPreviousCell(row, null, originalCell, viewer);
1207                                 } else if ((feature & TABBING_MOVE_TO_ROW_NEIGHBOR) == TABBING_MOVE_TO_ROW_NEIGHBOR) {
1208                                         ViewerRow rowAbove = row
1209                                                         .getNeighbor(ViewerRow.ABOVE, false);
1210                                         if (rowAbove != null) {
1211                                                 rv = searchPreviousCell(rowAbove, null, originalCell,
1212                                                                 viewer);
1213                                         }
1214                                 }
1215                         }
1216                         return rv;
1217                 }
1218
1219                 private ViewerCell searchNextCell(ViewerRow row,
1220                                 ViewerCell currentCell, ViewerCell originalCell,
1221                                 ColumnViewer viewer) {
1222                         ViewerCell rv = null;
1223                         ViewerCell nextCell;
1224                         if (currentCell != null) {
1225                                 nextCell = getNeighbor(currentCell, ViewerCell.RIGHT, true);
1226                         } else {
1227                                 nextCell = row.getCell(getCreationIndex(row, 0));
1228                         }
1229                         // No endless loop
1230                         if (originalCell.equals(nextCell)) {
1231                                 return null;
1232                         }
1233                         if (nextCell != null) {
1234                                 if (isCellEditable(viewer, nextCell)) {
1235                                         rv = nextCell;
1236                                 } else {
1237                                         rv = searchNextCell(row, nextCell, originalCell, viewer);
1238                                 }
1239                         } else {
1240                                 if ((feature & TABBING_CYCLE_IN_ROW) == TABBING_CYCLE_IN_ROW) {
1241                                         rv = searchNextCell(row, null, originalCell, viewer);
1242                                 } else if ((feature & TABBING_MOVE_TO_ROW_NEIGHBOR) == TABBING_MOVE_TO_ROW_NEIGHBOR) {
1243                                         ViewerRow rowBelow = row
1244                                                         .getNeighbor(ViewerRow.BELOW, false);
1245                                         if (rowBelow != null) {
1246                                                 rv = searchNextCell(rowBelow, null, originalCell,
1247                                                                 viewer);
1248                                         }
1249                                 }
1250                         }
1251                         return rv;
1252                 }
1253
1254                 private boolean isCellEditable(ColumnViewer viewer, ViewerCell cell) {
1255                         try {
1256                                 Method m = ColumnViewer.class.getDeclaredMethod(
1257                                                 "getViewerColumn", new Class[] { int.class });
1258                                 m.setAccessible(true);
1259                                 ViewerColumn column = (ViewerColumn) m.invoke(viewer,
1260                                                 new Object[] { new Integer(cell.getColumnIndex()) });
1261                                 m = ViewerColumn.class.getDeclaredMethod("getEditingSupport",
1262                                                 null);
1263                                 m.setAccessible(true);
1264                                 EditingSupport es = (EditingSupport) m.invoke(column, null);
1265                                 if (column != null && es != null) {
1266                                         m = EditingSupport.class.getDeclaredMethod("canEdit",
1267                                                         new Class[] { Object.class });
1268                                         m.setAccessible(true);
1269                                         // return true;
1270                                         Boolean b = (Boolean) m.invoke(es,
1271                                                         new Object[] { cell.getElement() });
1272                                         return b.booleanValue();
1273                                 }
1274                         } catch (Exception e) {
1275                                 e.printStackTrace();
1276                         }
1277                         return false;
1278                 }
1279         }
1280
1281         // Reimplementation of ViewerCell-Methods
1282         private static int getVisualIndex(ViewerRow row, int creationIndex) {
1283                 TableItem item = (TableItem) row.getItem();
1284                 int[] order = item.getParent().getColumnOrder();
1285                 for (int i = 0; i < order.length; i++) {
1286                         if (order[i] == creationIndex) {
1287                                 return i;
1288                         }
1289                 }
1290                 return creationIndex;
1291         }
1292
1293         private static int getCreationIndex(ViewerRow row, int visualIndex) {
1294                 TableItem item = (TableItem) row.getItem();
1295                 if (item != null && !item.isDisposed() /*
1296                                                                                                  * && hasColumns() &&
1297                                                                                                  * isValidOrderIndex
1298                                                                                                  * (visualIndex)
1299                                                                                                  */) {
1300                         return item.getParent().getColumnOrder()[visualIndex];
1301                 }
1302                 return visualIndex;
1303         }
1304
1305         private static ViewerCell getCellAtVisualIndex(ViewerRow row,
1306                         int visualIndex) {
1307                 return getCell(row, getCreationIndex(row, visualIndex));
1308         }
1309
1310         private static boolean isVisible(ViewerCell cell) {
1311                 return getWidth(cell) > 0;
1312         }
1313
1314         private static int getWidth(ViewerCell cell) {
1315                 TableItem item = (TableItem) cell.getViewerRow().getItem();
1316                 return item.getParent().getColumn(cell.getColumnIndex()).getWidth();
1317         }
1318
1319         private static ViewerCell getCell(ViewerRow row, int index) {
1320                 return row.getCell(index);
1321         }
1322
1323
1324 }