eclipseprojects/eu.etaxonomy.taxeditor/src/eu/etaxonomy/taxeditor/navigation/FavoritesTableViewer.java

   1 package eu.etaxonomy.taxeditor.navigation;
   2
   3 import org.eclipse.core.databinding.beans.BeansObservables;
   4 import org.eclipse.core.databinding.observable.map.IObservableMap;
   5 import org.eclipse.jface.databinding.viewers.ObservableListContentProvider;
   6 import org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider;
   7 import org.eclipse.jface.viewers.DoubleClickEvent;
   8 import org.eclipse.jface.viewers.IDoubleClickListener;
   9 import org.eclipse.jface.viewers.StructuredSelection;
  10 import org.eclipse.jface.viewers.TableViewer;
  11 import org.eclipse.swt.SWT;
  12 import org.eclipse.swt.dnd.DND;
  13 import org.eclipse.swt.dnd.DropTarget;
  14 import org.eclipse.swt.dnd.DropTargetAdapter;
  15 import org.eclipse.swt.dnd.DropTargetEvent;
  16 import org.eclipse.swt.dnd.Transfer;
  17 import org.eclipse.swt.layout.GridData;
  18 import org.eclipse.swt.widgets.Composite;
  19
  20 import eu.etaxonomy.cdm.model.taxon.Taxon;
  21 import eu.etaxonomy.taxeditor.actions.TaxonTransfer;
  22 import eu.etaxonomy.taxeditor.actions.ui.OpenTaxonEditorAction;
  23
  24 public class FavoritesTableViewer extends TableViewer {
  25
  26         public FavoritesTableViewer(Composite parent) {
  27                 super(parent, SWT.H_SCROLL | SWT.V_SCROLL);
  28                 this.getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  29
  30                 // Add content provider
  31                 ObservableListContentProvider favoritesContentProviderList = new ObservableListContentProvider();
  32                 this.setContentProvider(favoritesContentProviderList);
  33
  34                 // Label provider that listens for changes to name cache
  35                 IObservableMap[] rnViewerLabelProviderMaps = BeansObservables.observeMaps(favoritesContentProviderList.
  36 //                              getKnownElements(), IFavoritesDraggable.class, new String[]{"label"});
  37                                 getKnownElements(), Taxon.class, new String[]{"name"});
  38                 this.setLabelProvider(new ObservableMapLabelProvider(rnViewerLabelProviderMaps) {
  39
  40                         /*
  41                          * JFace databinding syntax makes it to difficult to retrieve
  42                          *      Taxon.getName().getNameCache, so override function that returns
  43                          *  label
  44                          *
  45                          *  (non-Javadoc)
  46                          * @see org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider#getColumnText(java.lang.Object, int)
  47                          */
  48                         public String getColumnText(Object element, int columnIndex) {
  49                                 return element.toString();
  50 //                              return ((Taxon) element).getName().getTitleCache();
  51                         }
  52                 });
  53
  54                 // Listens for new taxa opened for editing
  55                 this.setInput(FavoritesView.getObservableFavorites());
  56
  57                 // On double click, open name editor
  58                 this.addDoubleClickListener(new IDoubleClickListener(){
  59
  60                         public void doubleClick(DoubleClickEvent event) {
  61                                 Object element = ((StructuredSelection)event.getSelection()).getFirstElement();
  62                                 if (element instanceof Taxon) {
  63                                         new OpenTaxonEditorAction((Taxon) element).run();
  64                                 }
  65                         }
  66                 });
  67
  68                 // Drop functionality
  69                 Transfer[] types = new Transfer[] {TaxonTransfer.getInstance()};
  70 //              int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT;
  71                 int operations = DND.DROP_COPY;
  72                 DropTarget target = new DropTarget(this.getControl(), operations);
  73                 target.setTransfer(types);
  74                 target.addDropListener(new DropTargetAdapter() {
  75
  76                         public void dragEnter(DropTargetEvent event) {
  77                         }
  78
  79                         public void drop(DropTargetEvent event) {
  80
  81                                 // Add event to favorites list
  82                                 FavoritesView.addFavorite(event.data);
  83                         }
  84                 });
  85         }
  86 }