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

   1 package eu.etaxonomy.taxeditor.view;
   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.TaxEditorPlugin;
  22 import eu.etaxonomy.taxeditor.actions.TaxonTransfer;
  23 import eu.etaxonomy.taxeditor.actions.ui.OpenTaxonEditorAction;
  24
  25 public class FavoritesTableViewer extends TableViewer {
  26
  27         public FavoritesTableViewer(Composite parent) {
  28                 super(parent, SWT.H_SCROLL | SWT.V_SCROLL);
  29                 this.getTable().setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  30
  31                 // Add content provider
  32                 ObservableListContentProvider favoritesContentProviderList = new ObservableListContentProvider();
  33                 this.setContentProvider(favoritesContentProviderList);
  34
  35                 // Label provider that listens for changes to name cache
  36                 IObservableMap[] rnViewerLabelProviderMaps = BeansObservables.observeMaps(favoritesContentProviderList.
  37 //                              getKnownElements(), IFavoritesDraggable.class, new String[]{"label"});
  38                                 getKnownElements(), Taxon.class, new String[]{"name"});
  39                 this.setLabelProvider(new ObservableMapLabelProvider(rnViewerLabelProviderMaps) {
  40
  41                         /*
  42                          * JFace databinding syntax makes it to difficult to retrieve
  43                          *      Taxon.getName().getNameCache, so override function that returns
  44                          *  label
  45                          *
  46                          *  (non-Javadoc)
  47                          * @see org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider#getColumnText(java.lang.Object, int)
  48                          */
  49                         public String getColumnText(Object element, int columnIndex) {
  50                                 return element.toString();
  51 //                              return ((Taxon) element).getName().getTitleCache();
  52                         }
  53                 });
  54
  55                 // Listens for new taxa opened for editing
  56                 this.setInput(TaxEditorPlugin.getDefault().getObservableFavoritesList());
  57
  58                 // On double click, open name editor
  59                 this.addDoubleClickListener(new IDoubleClickListener(){
  60
  61                         public void doubleClick(DoubleClickEvent event) {
  62                                 Object element = ((StructuredSelection)event.getSelection()).getFirstElement();
  63                                 if (element instanceof Taxon) {
  64                                         new OpenTaxonEditorAction((Taxon) element).run();
  65                                 }
  66                         }
  67                 });
  68
  69                 // Drop functionality
  70                 Transfer[] types = new Transfer[] {TaxonTransfer.getInstance()};
  71 //              int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT;
  72                 int operations = DND.DROP_COPY;
  73                 DropTarget target = new DropTarget(this.getControl(), operations);
  74                 target.setTransfer(types);
  75                 target.addDropListener(new DropTargetAdapter() {
  76
  77                         public void dragEnter(DropTargetEvent event) {
  78 //                              System.out.println("hello");
  79                         }
  80
  81                         public void drop(DropTargetEvent event) {
  82
  83                                 // Add event to favorites list
  84                                 TaxEditorPlugin.getDefault().getObservableFavoritesList().add(event.data);
  85                         }
  86                 });
  87         }
  88 }