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.IToolBarManager;
  19 import org.eclipse.jface.action.MenuManager;
  20 import org.eclipse.jface.resource.ImageDescriptor;
  21 import org.eclipse.jface.viewers.ISelection;
  22 import org.eclipse.jface.viewers.StructuredSelection;
  23 import org.eclipse.jface.viewers.TreeViewer;
  24 import org.eclipse.jface.viewers.Viewer;
  25 import org.eclipse.swt.SWT;
  26 import org.eclipse.swt.dnd.DND;
  27 import org.eclipse.swt.dnd.Transfer;
  28 import org.eclipse.swt.graphics.ImageData;
  29 import org.eclipse.swt.widgets.Composite;
  30 import org.eclipse.swt.widgets.Control;
  31 import org.eclipse.swt.widgets.Menu;
  32 import org.eclipse.swt.widgets.Tree;
  33 import org.eclipse.ui.IEditorInput;
  34 import org.eclipse.ui.IEditorPart;
  35 import org.eclipse.ui.IWorkbenchActionConstants;
  36 import org.eclipse.ui.IWorkbenchPart;
  37
  38 import eu.etaxonomy.cdm.model.common.CdmBase;
  39 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  40 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  41 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  42 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  43 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  44 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  45 import eu.etaxonomy.taxeditor.editor.definedterm.DefinedTermEditor;
  46 import eu.etaxonomy.taxeditor.editor.key.AbstractGraphKeyEditor;
  47 import eu.etaxonomy.taxeditor.model.FeatureNodeContainer;
  48 import eu.etaxonomy.taxeditor.model.FeatureNodeContainerTree;
  49 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  50 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  51 import eu.etaxonomy.taxeditor.model.ImageResources;
  52 import eu.etaxonomy.taxeditor.view.AbstractCdmEditorViewPart;
  53
  54 /**
  55  * <p>DescriptiveViewPart class.</p>
  56  *
  57  * @author n.hoffmann
  58  * @created Jun 9, 2010
  59  * @version 1.0
  60  */
  61 public class DescriptiveViewPart extends AbstractCdmEditorViewPart implements IPartContentHasDetails, IPartContentHasSupplementalData {
  62
  63         /** Constant <code>ID="eu.etaxonomy.taxeditor.editor.view.desc"{trunked}</code> */
  64         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.descriptive";
  65
  66         private TreeViewer viewer;
  67
  68         private Map<TaxonDescription, FeatureNodeContainerTree> featureNodeContainerCache = new HashMap<TaxonDescription, FeatureNodeContainerTree>();
  69
  70         private ToggleDescriptionAction showAllElementsAction;
  71
  72         private ToggleDescriptionAction hideAllElementsAction;
  73
  74         private int dndOperations = DND.DROP_COPY | DND.DROP_MOVE;
  75
  76         /** {@inheritDoc} */
  77         @Override
  78         public void createViewer(Composite parent) {
  79
  80                 viewer = new TreeViewer(new Tree(parent, SWT.MULTI | SWT.H_SCROLL
  81                                 | SWT.V_SCROLL | SWT.FULL_SELECTION));
  82
  83                 viewer.setContentProvider(new DescriptiveContentProvider(featureNodeContainerCache));
  84                 viewer.setLabelProvider(new DescriptiveLabelProvider());
  85
  86                 viewer.setSorter(new DescriptiveViewerSorter());
  87
  88                 viewer.setAutoExpandLevel(2);
  89
  90
  91                 Transfer[] transfers = new Transfer[] { DescriptionElementTransfer.getInstance() };
  92                 viewer.addDragSupport(dndOperations, transfers, new DescriptionElementDragListener(
  93                                 this));
  94                 viewer.addDropSupport(dndOperations, transfers,
  95                                 new DescriptionElementDropAdapter(viewer));
  96
  97                 // Propagate selection from viewer
  98                 getSite().setSelectionProvider(viewer);
  99
 100                 showAllElementsAction = new ToggleDescriptionAction(false);
 101                 hideAllElementsAction = new ToggleDescriptionAction(true);
 102
 103                 // Add context menu to tree
 104                 createMenu();
 105
 106                 createToolbar();
 107
 108                 // set initial input
 109 //              if(getEditor() != null){
 110 //                      viewer.setInput(getEditor().getEditorInput());
 111 //              }
 112         }
 113
 114         /* (non-Javadoc)
 115          * @see eu.etaxonomy.taxeditor.model.AbstractCdmViewPart#getInitialSelection()
 116          */
 117         /** {@inheritDoc} */
 118         @Override
 119         protected ISelection getInitialSelection() {
 120                 if(getEditor() != null){
 121                         return new StructuredSelection(getEditor().getEditorInput());
 122                 }
 123
 124                 return super.getInitialSelection();
 125         }
 126
 127         private void createToolbar() {
 128                 IToolBarManager toolBarManager = getViewSite().getActionBars().getToolBarManager();
 129                 toolBarManager.add(showAllElementsAction);
 130                 toolBarManager.add(hideAllElementsAction);
 131         }
 132
 133         /*
 134          * TODO add to the views menu
 135          */
 136         private void createMenu(){
 137                 MenuManager menuManager = new MenuManager();
 138                 menuManager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 139
 140                 getSite().registerContextMenu(menuManager, viewer);
 141
 142                 // FIXME for some reason this is not working
 143                 menuManager.add(showAllElementsAction);
 144                 menuManager.add(hideAllElementsAction);
 145
 146                 Control control = viewer.getControl();
 147                 Menu menu = menuManager.createContextMenu(control);
 148
 149                 control.setMenu(menu);
 150         }
 151
 152         /** {@inheritDoc} */
 153         public void selectionChanged(IWorkbenchPart part, ISelection selection) {
 154                 if(EditorUtil.getActiveEditor() == null){
 155                         showEmptyPage();
 156                         return;
 157                 }
 158
 159                 if(part instanceof BulkEditor){
 160                         showEmptyPage();
 161                         return;
 162                 }
 163
 164                 if(part instanceof AbstractGraphKeyEditor){
 165                         showEmptyPage();
 166                         return;
 167                 }
 168
 169                 if(part instanceof DefinedTermEditor){
 170                         showEmptyPage();
 171                         return;
 172                 }
 173
 174                 if(part instanceof MultiPageTaxonEditor){
 175                         if(! part.equals(this.part)){
 176                                 IEditorInput input = ((IEditorPart) part).getEditorInput();
 177                                 featureNodeContainerCache.clear();
 178                                 showViewer(part, new StructuredSelection(input));
 179                         }
 180                         showViewer();
 181                 }
 182         }
 183
 184         /**
 185          *
 186          * @author n.hoffmann
 187          * @created May 28, 2010
 188          * @version 1.0
 189          */
 190         private class ToggleDescriptionAction extends Action{
 191                 private boolean expanded;
 192
 193                 public ToggleDescriptionAction(boolean expand){
 194                         super(null, Action.AS_PUSH_BUTTON);
 195                         expanded = expand;
 196                         setImageAndTooltip();
 197                 }
 198
 199                 private void setImageAndTooltip(){
 200                         setImageDescriptor(new ImageDescriptor() {
 201                                 @Override
 202                                 public ImageData getImageData() {
 203                                         setText(expanded ? "Collapse All" : "Expand All");
 204                                         String resource = expanded ? ImageResources.COLLAPSE_ALL : ImageResources.EXPAND_ALL;
 205                                         return ImageResources.getImage(resource).getImageData();
 206                                 }
 207                         });
 208
 209                         String toolTipText = expanded ? "Collapse all" : "Show all descriptive data";
 210                         setToolTipText(toolTipText);
 211                 }
 212
 213                 @Override
 214                 public void run() {
 215                         if(expanded){
 216                                 viewer.collapseAll();
 217                         }else{
 218                                 viewer.expandAll();
 219                         }
 220                         setImageAndTooltip();
 221                 }
 222         }
 223
 224         /** {@inheritDoc} */
 225         @Override
 226         public boolean postOperation(CdmBase objectAffectedByOperation) {
 227                 return super.postOperation(objectAffectedByOperation);
 228         }
 229
 230         /** {@inheritDoc} */
 231         @Override
 232         public void changed(Object object) {
 233                 for(FeatureNodeContainerTree containerTree : featureNodeContainerCache.values()){
 234                         containerTree.buildTree();
 235                 }
 236                 viewer.refresh();
 237
 238                 if(object instanceof DescriptionElementBase){
 239                         DescriptionElementBase descriptionElement = (DescriptionElementBase) object;
 240                         DescriptionBase description = descriptionElement.getInDescription();
 241                         FeatureNodeContainerTree containerTree = featureNodeContainerCache.get(description);
 242
 243                         FeatureNodeContainer featureNodeContainer = containerTree.getFeatureNodeContainerForDescriptionElement(descriptionElement);
 244                         viewer.expandToLevel(featureNodeContainer, 1);
 245
 246                 }
 247
 248                 if(object != null){
 249                         StructuredSelection selection = new StructuredSelection(object);
 250                         viewer.setSelection(selection, true);
 251                 }
 252
 253                 super.changed(object);
 254         }
 255
 256         /** {@inheritDoc} */
 257         @Override
 258         public Viewer getViewer() {
 259                 return viewer;
 260         }
 261
 262         /**
 263          * <p>onComplete</p>
 264          *
 265          * @return a boolean.
 266          */
 267         public boolean onComplete() {
 268                 return false;
 269         }
 270 }