eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/uses/UsesViewPart.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.editor.view.uses;
  11
  12 import java.util.HashMap;
  13 import java.util.Map;
  14
  15 import org.eclipse.jface.action.Action;
  16 import org.eclipse.jface.action.GroupMarker;
  17 import org.eclipse.jface.action.IToolBarManager;
  18 import org.eclipse.jface.action.MenuManager;
  19 import org.eclipse.jface.resource.ImageDescriptor;
  20 import org.eclipse.jface.viewers.ISelection;
  21 import org.eclipse.jface.viewers.StructuredSelection;
  22 import org.eclipse.jface.viewers.TreeViewer;
  23 import org.eclipse.swt.SWT;
  24 import org.eclipse.swt.dnd.DND;
  25 import org.eclipse.swt.dnd.Transfer;
  26 import org.eclipse.swt.graphics.ImageData;
  27 import org.eclipse.swt.widgets.Composite;
  28 import org.eclipse.swt.widgets.Control;
  29 import org.eclipse.swt.widgets.Menu;
  30 import org.eclipse.swt.widgets.Tree;
  31 import org.eclipse.ui.IEditorInput;
  32 import org.eclipse.ui.IEditorPart;
  33 import org.eclipse.ui.IWorkbenchActionConstants;
  34 import org.eclipse.ui.IWorkbenchPart;
  35
  36 import eu.etaxonomy.cdm.model.description.TaxonDescription;
  37 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  38 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  39 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  40 import eu.etaxonomy.taxeditor.editor.definedterm.DefinedTermEditor;
  41 import eu.etaxonomy.taxeditor.editor.key.AbstractGraphKeyEditor;
  42 import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptionElementDragListener;
  43 import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptionElementDropAdapter;
  44 import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptionElementTransfer;
  45 import eu.etaxonomy.taxeditor.editor.view.descriptive.DescriptiveViewPart;
  46 import eu.etaxonomy.taxeditor.model.FeatureNodeContainerTree;
  47 import eu.etaxonomy.taxeditor.model.IPartContentHasDetails;
  48 import eu.etaxonomy.taxeditor.model.IPartContentHasSupplementalData;
  49 import eu.etaxonomy.taxeditor.model.ImageResources;
  50
  51
  52 /**
  53  * <p>UsesViewPart Class.</p>
  54  * @author a.theys
  55  * @created mar 13, 2012
  56  * @version 1.0
  57  */
  58 public class UsesViewPart extends DescriptiveViewPart implements IPartContentHasDetails, IPartContentHasSupplementalData {
  59
  60         /** Constant <code>ID="eu.etaxonomy.taxeditor.editor.view.desc"{trunked}</code> */
  61
  62         public static final String ID = "eu.etaxonomy.taxeditor.editor.view.uses";
  63
  64         private TreeViewer viewer;
  65
  66         private Map<TaxonDescription, FeatureNodeContainerTree> featureNodeContainerCache = new HashMap<TaxonDescription, FeatureNodeContainerTree>();
  67
  68         private ToggleDescriptionAction showAllElementsAction;
  69
  70         private ToggleDescriptionAction hideAllElementsAction;
  71
  72         private int dndOperations = DND.DROP_COPY | DND.DROP_MOVE;
  73
  74         /** {@inheritDoc} */
  75         @Override
  76         public void createViewer(Composite parent) {
  77                 viewer = new TreeViewer(new Tree(parent, SWT.MULTI | SWT.H_SCROLL
  78                                 | SWT.V_SCROLL | SWT.FULL_SELECTION));
  79                 viewer.setContentProvider(new UsesContentProvider(featureNodeContainerCache));
  80                 viewer.setLabelProvider(new UsesLabelProvider());
  81                 viewer.setAutoExpandLevel(2);
  82                 Transfer[] transfers = new Transfer[] { DescriptionElementTransfer.getInstance() };
  83                 viewer.addDragSupport(dndOperations, transfers, new DescriptionElementDragListener(
  84                                 this));
  85                 viewer.addDropSupport(dndOperations, transfers,
  86                                 new DescriptionElementDropAdapter(viewer));
  87                 getSite().setSelectionProvider(viewer);
  88                 showAllElementsAction = new ToggleDescriptionAction(false);
  89                 hideAllElementsAction = new ToggleDescriptionAction(true);
  90                 createMenu();
  91                 createToolbar();
  92         }
  93
  94
  95
  96         private void createToolbar() {
  97                 IToolBarManager toolBarManager = getViewSite().getActionBars().getToolBarManager();
  98                 toolBarManager.add(showAllElementsAction);
  99                 toolBarManager.add(hideAllElementsAction);
 100         }
 101
 102         @Override
 103         public void selectionChanged(IWorkbenchPart part, ISelection selection) {
 104                 if(EditorUtil.getActiveEditor() == null){
 105                         showEmptyPage();
 106                         return;
 107                 }
 108
 109                 if(part instanceof BulkEditor){
 110                         showEmptyPage();
 111                         return;
 112                 }
 113
 114                 if(part instanceof AbstractGraphKeyEditor){
 115                         showEmptyPage();
 116                         return;
 117                 }
 118
 119                 if(part instanceof DefinedTermEditor){
 120                         showEmptyPage();
 121                         return;
 122                 }
 123
 124                 if(part instanceof MultiPageTaxonEditor){
 125                         if(! part.equals(this.part)){
 126                                 IEditorInput input = ((IEditorPart) part).getEditorInput();
 127                                 featureNodeContainerCache.clear();
 128                                 showViewer(part, new StructuredSelection(input));
 129                         }
 130                         showViewer();
 131                 }
 132         }
 133
 134
 135         private void createMenu(){
 136                 MenuManager menuManager = new MenuManager();
 137                 menuManager.add(new GroupMarker(IWorkbenchActionConstants.MB_ADDITIONS));
 138
 139                 getSite().registerContextMenu(menuManager, viewer);
 140
 141                 // FIXME for some reason this is not working
 142                 menuManager.add(showAllElementsAction);
 143                 menuManager.add(hideAllElementsAction);
 144
 145                 Control control = viewer.getControl();
 146                 Menu menu = menuManager.createContextMenu(control);
 147
 148                 control.setMenu(menu);
 149         }
 150
 151
 152         private class ToggleDescriptionAction extends Action{
 153                 private boolean expanded;
 154
 155                 public ToggleDescriptionAction(boolean expand){
 156                         super(null, Action.AS_PUSH_BUTTON);
 157                         expanded = expand;
 158                         setImageAndTooltip();
 159                 }
 160
 161                 private void setImageAndTooltip(){
 162                         setImageDescriptor(new ImageDescriptor() {
 163                                 @Override
 164                                 public ImageData getImageData() {
 165                                         setText(expanded ? "Collapse All" : "Expand All");
 166                                         String resource = expanded ? ImageResources.COLLAPSE_ALL : ImageResources.EXPAND_ALL;
 167                                         return ImageResources.getImage(resource).getImageData();
 168                                 }
 169                         });
 170
 171                         String toolTipText = expanded ? "Collapse all" : "Show all descriptive data";
 172                         setToolTipText(toolTipText);
 173                 }
 174
 175                 @Override
 176                 public void run() {
 177                         if(expanded){
 178                                 viewer.collapseAll();
 179                         }else{
 180                                 viewer.expandAll();
 181                         }
 182                         setImageAndTooltip();
 183                 }
 184         }
 185
 186 }