eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptiveViewPart.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10
  11 package eu.etaxonomy.taxeditor.editor.view.descriptive;
  12
  13 import java.util.HashMap;
  14 import java.util.Map;
  15
  16 import org.eclipse.jface.action.Action;
  17 import org.eclipse.jface.action.GroupMarker;
  18 import org.eclipse.jface.action.IAction;
  19 import org.eclipse.jface.action.IToolBarManager;
  20 import org.eclipse.jface.action.MenuManager;
  21 import org.eclipse.jface.resource.ImageDescriptor;
  22 import org.eclipse.jface.viewers.ISelection;
  23 import org.eclipse.jface.viewers.IStructuredSelection;
  24 import org.eclipse.jface.viewers.ITreeContentProvider;
  25 import org.eclipse.jface.viewers.StructuredSelection;
  26 import org.eclipse.jface.viewers.TreeNode;
  27 import org.eclipse.jface.viewers.TreeViewer;
  28 import org.eclipse.jface.viewers.Viewer;
  29 import org.eclipse.swt.SWT;
  30 import org.eclipse.swt.dnd.DND;
  31 import org.eclipse.swt.dnd.Transfer;
  32 import org.eclipse.swt.graphics.ImageData;
  33 import org.eclipse.swt.widgets.Composite;
  34 import org.eclipse.swt.widgets.Control;
  35 import org.eclipse.swt.widgets.Menu;
  36 import org.eclipse.swt.widgets.Tree;
  37 import org.eclipse.ui.IWorkbenchActionConstants;
  38 import org.eclipse.ui.IWorkbenchPart;
  39
  40 import eu.etaxonomy.cdm.model.common.CdmBase;
  41 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  42 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  43 import eu.etaxonomy.cdm.model.description.IDescribable;
  44 import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
  45 import eu.etaxonomy.cdm.model.taxon.Taxon;
  46 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  47 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  48 import eu.etaxonomy.taxeditor.editor.view.checklist.ChecklistEditor;
  49 import eu.etaxonomy.taxeditor.editor.view.derivate.DerivateView;
  50 import eu.etaxonomy.taxeditor.editor.view.media.MediaViewPart;
  51 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  52 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  53 import eu.etaxonomy.taxeditor.model.FeatureNodeContainerTree;
  54 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  55 import eu.etaxonomy.taxeditor.model.IPartContentHasFactualData;
  56 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  57 import eu.etaxonomy.taxeditor.model.ImageResources;
  58 import eu.etaxonomy.taxeditor.store.CdmStore;
  59 import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
  60 import eu.etaxonomy.taxeditor.view.detail.DetailsViewPart;
  61 import eu.etaxonomy.taxeditor.view.supplementaldata.SupplementalDataViewPart;
  62
  63 /**
  64  * @author n.hoffmann
  65  * @created Jun 9, 2010
  66  * @version 1.0
  67  */
  68 public class DescriptiveViewPart extends AbstractCdmEditorViewPart implements IPartContentHasDetails, IPartContentHasSupplementalData {
  69
  70         /** Constant <code>ID="eu.etaxonomy.taxeditor.editor.view.desc"{trunked}</code> */
  71         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.descriptive";
  72
  73         protected TreeViewer viewer;
  74
  75         /**
  76          * Maps {@link FeatureNodeContainerTree} to their corresponding {@link TaxonDescritpion}.<br>
  77          * This serves as input for the {@link ITreeContentProvider} of the {@link TreeViewer}
  78          */
  79         protected Map<DescriptionBase<?>, FeatureNodeContainerTree> featureNodeContainerCache = new HashMap<DescriptionBase<?>, FeatureNodeContainerTree>();
  80
  81         protected ToggleDescriptionAction showAllElementsAction;
  82
  83         protected ToggleDescriptionAction hideAllElementsAction;
  84
  85         protected int dndOperations = DND.DROP_COPY | DND.DROP_MOVE;
  86
  87     private DescriptiveContentProvider provider;
  88
  89         /** {@inheritDoc} */
  90         @Override
  91         public void createViewer(Composite parent) {
  92                 viewer = new TreeViewer(new Tree(parent, SWT.MULTI | SWT.H_SCROLL
  93                                 | SWT.V_SCROLL | SWT.FULL_SELECTION));
  94                 provider = new DescriptiveContentProvider(featureNodeContainerCache);
  95         viewer.setContentProvider(provider);
  96                 viewer.setLabelProvider(new DescriptiveLabelProvider());
  97                 viewer.setSorter(new DescriptiveViewerSorter());
  98                 viewer.setAutoExpandLevel(2);
  99                 Transfer[] transfers = new Transfer[] { DescriptionElementTransfer.getInstance() };
 100                 viewer.addDragSupport(dndOperations, transfers, new DescriptionElementDragListener(
 101                                 this));
 102                 viewer.addDropSupport(dndOperations, transfers,
 103                                 new DescriptionElementDropAdapter(viewer));
 104
 105                 // Propagate selection from viewer
 106                 getSite().setSelectionProvider(viewer);
 107
 108                 showAllElementsAction = new ToggleDescriptionAction(false);
 109                 hideAllElementsAction = new ToggleDescriptionAction(true);
 110
 111                 // Add context menu to tree
 112                 createMenu();
 113
 114                 createToolbar();
 115
 116         }
 117
 118         /** {@inheritDoc} */
 119         @Override
 120         protected ISelection getInitialSelection() {
 121                 if(getEditor() != null){
 122                         return new StructuredSelection(getEditor().getEditorInput());
 123                 }
 124
 125                 return super.getInitialSelection();
 126         }
 127
 128         protected void createToolbar() {
 129                 IToolBarManager toolBarManager = getViewSite().getActionBars().getToolBarManager();
 130                 toolBarManager.add(showAllElementsAction);
 131                 toolBarManager.add(hideAllElementsAction);
 132         }
 133
 134         /*
 135          * TODO add to the views menu
 136          */
 137         protected void createMenu(){
 138                 MenuManager menuManager = new MenuManager();
 139                 menuManager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 140
 141                 getSite().registerContextMenu(menuManager, viewer);
 142
 143                 // FIXME for some reason this is not working
 144                 menuManager.add(showAllElementsAction);
 145                 menuManager.add(hideAllElementsAction);
 146
 147                 Control control = viewer.getControl();
 148                 Menu menu = menuManager.createContextMenu(control);
 149
 150                 control.setMenu(menu);
 151         }
 152
 153         /** {@inheritDoc} */
 154         @Override
 155     protected void selectionChanged_internal(IWorkbenchPart part, ISelection selection) {
 156                 if(AbstractUtility.getActiveEditor() == null){
 157                     setPartName(createPartTitle(null));
 158                         showEmptyPage();
 159                         return;
 160                 }
 161
 162                 if(part == this){
 163                     return;
 164                 }
 165         if (part instanceof DetailsViewPart || part instanceof SupplementalDataViewPart
 166                 || part instanceof MediaViewPart) {
 167             // do not show empty page as these views are also used to edit the
 168             // description selected in this view
 169             return;
 170         }
 171                 // unpackage TreeNode of DerivateView
 172                 else if(part instanceof DerivateView){
 173                     TreeNode treeNodeOfSelection = EditorUtil.getTreeNodeOfSelection(selection);
 174                     if(treeNodeOfSelection!=null){
 175                         selection = new StructuredSelection(treeNodeOfSelection.getValue());
 176                     }
 177                 }
 178         else if(part instanceof ChecklistEditor){
 179             if(selection instanceof StructuredSelection  && ((IStructuredSelection) selection).getFirstElement() instanceof Taxon){
 180                 Taxon taxon = (Taxon)((IStructuredSelection) selection).getFirstElement();
 181                 selection = new StructuredSelection(taxon);
 182             }
 183         }
 184                 if(selection instanceof IStructuredSelection
 185                         && ((IStructuredSelection) selection).getFirstElement() instanceof IDescribable<?>
 186                         && part instanceof IPartContentHasFactualData  && !(((IStructuredSelection) selection).getFirstElement() instanceof SpecimenOrObservationBase && part instanceof BulkEditor)){
 187                     featureNodeContainerCache.clear();
 188                 setPartName(createPartTitle(((IStructuredSelection) selection).getFirstElement()));
 189                     showViewer(part, (IStructuredSelection) selection);
 190                     return;
 191                 }
 192                 else{
 193             setPartName(createPartTitle(null));
 194                     showEmptyPage();
 195                 }
 196         }
 197
 198         protected String getViewName(){
 199             return "Factual Data";
 200         }
 201
 202         private String createPartTitle(Object selectedObject){
 203             if(selectedObject!=null){
 204                 return getViewName()+": "+selectedObject;
 205             }
 206         return getViewName();
 207         }
 208
 209         /**
 210          *
 211          * @author n.hoffmann
 212          * @created May 28, 2010
 213          * @version 1.0
 214          */
 215         protected class ToggleDescriptionAction extends Action{
 216                 private final boolean expanded;
 217
 218                 public ToggleDescriptionAction(boolean expand){
 219                         super(null, IAction.AS_PUSH_BUTTON);
 220                         expanded = expand;
 221                         setImageAndTooltip();
 222                 }
 223
 224                 private void setImageAndTooltip(){
 225                         setImageDescriptor(new ImageDescriptor() {
 226                                 @Override
 227                                 public ImageData getImageData() {
 228                                         setText(expanded ? "Collapse All" : "Expand All");
 229                                         String resource = expanded ? ImageResources.COLLAPSE_ALL : ImageResources.EXPAND_ALL;
 230                                         return ImageResources.getImage(resource).getImageData();
 231                                 }
 232                         });
 233
 234                         String toolTipText = expanded ? "Collapse all" : "Show all factual data";
 235                         setToolTipText(toolTipText);
 236                 }
 237
 238                 @Override
 239                 public void run() {
 240                         if(expanded){
 241                                 viewer.collapseAll();
 242                         }else{
 243                                 viewer.expandAll();
 244                         }
 245                         setImageAndTooltip();
 246                 }
 247         }
 248
 249         /** {@inheritDoc} */
 250         @Override
 251         public boolean postOperation(CdmBase objectAffectedByOperation) {
 252                 return super.postOperation(objectAffectedByOperation);
 253         }
 254
 255         /** {@inheritDoc} */
 256         @Override
 257         public void changed(Object object) {
 258                 for(FeatureNodeContainerTree containerTree : featureNodeContainerCache.values()){
 259                         containerTree.buildTree();
 260                 }
 261                 viewer.expandToLevel(2);
 262                 viewer.refresh();
 263
 264                 if(object instanceof DescriptionElementBase){
 265                         DescriptionElementBase descriptionElement = (DescriptionElementBase) object;
 266                         DescriptionBase description = descriptionElement.getInDescription();
 267                         FeatureNodeContainerTree containerTree = featureNodeContainerCache.get(description);
 268
 269                         FeatureNodeContainer featureNodeContainer = containerTree.getFeatureNodeContainerForDescriptionElement(descriptionElement);
 270                         viewer.expandToLevel(featureNodeContainer, 1);
 271
 272                 }
 273
 274                 if(object != null){
 275                         StructuredSelection selection = new StructuredSelection(object);
 276                         viewer.setSelection(selection, true);
 277                 }
 278                 if(part instanceof BulkEditor && !(object instanceof SpecimenOrObservationBase<?>)){
 279                     ((BulkEditor) part).forceDirty();
 280                     if(CdmStore.getCurrentSessionManager().isRemoting()) {
 281                         IStructuredSelection selection = (IStructuredSelection) ((BulkEditor) part).getSelectionProvider().getSelection();
 282                         ((BulkEditor) part).changed(selection.getFirstElement());
 283                     }
 284                 }
 285
 286
 287                 super.changed(object);
 288         }
 289
 290         /** {@inheritDoc} */
 291         @Override
 292         public Viewer getViewer() {
 293                 return viewer;
 294         }
 295
 296         @Override
 297     public boolean onComplete() {
 298                 return false;
 299         }
 300
 301         public void toggleShowOnlyIndividualAssociations(){
 302             provider.toggleShowOnlyIndividualAssociations();
 303             viewer.refresh();
 304         }
 305 }