eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/TaxonNavigatorViewer.java

   1 package eu.etaxonomy.taxeditor.navigation.navigator;
   2
   3 import org.eclipse.swt.dnd.DND;
   4 import org.eclipse.swt.dnd.Transfer;
   5 import org.eclipse.swt.widgets.Composite;
   6 import org.eclipse.ui.internal.navigator.NavigatorContentService;
   7 import org.eclipse.ui.internal.navigator.dnd.NavigatorDnDService;
   8 import org.eclipse.ui.navigator.CommonDragAdapter;
   9 import org.eclipse.ui.navigator.CommonDropAdapter;
  10 import org.eclipse.ui.navigator.CommonViewer;
  11 import org.eclipse.ui.navigator.INavigatorContentService;
  12
  13 import eu.etaxonomy.taxeditor.dnd.transfer.TaxonNodeTransfer;
  14
  15 public class TaxonNavigatorViewer extends CommonViewer {
  16
  17         private NavigatorContentService contentService;
  18         String viewerId;
  19
  20         public TaxonNavigatorViewer(String aViewerId, Composite aParent, int aStyle) {
  21                 super(aViewerId, aParent, aStyle);
  22                 contentService = new TaxonNavigatorContentService(aViewerId, this);
  23                 viewerId = aViewerId;
  24         }
  25
  26         @Override
  27         protected void initDragAndDrop() {
  28
  29                 int operations =  DND.DROP_MOVE ;
  30
  31                 CommonDragAdapter dragAdapter = createDragAdapter();
  32                 addDragSupport(operations, dragAdapter.getSupportedDragTransfers(),
  33                                 dragAdapter);
  34                 Transfer[] transfers = new Transfer[] { TaxonNodeTransfer.getInstance() };
  35                 TreeNodeDropAdapter dropAdapter = createTreeNodeDropAdapter();
  36                 addDropSupport(operations, transfers, dropAdapter);
  37
  38                 TaxonNavigatorDnDService dnd = (TaxonNavigatorDnDService)getNavigatorContentService().getDnDService();
  39                 dnd.setDropAdaptor(dropAdapter);
  40         }
  41
  42
  43         protected TreeNodeDropAdapter createTreeNodeDropAdapter() {
  44                 return new TreeNodeDropAdapter(this);
  45         }
  46
  47         public NavigatorContentService getNavigatorContentService(){
  48                 if (contentService == null){
  49                         contentService = new TaxonNavigatorContentService(viewerId);
  50                 }
  51                 return contentService;
  52         }
  53
  54 }