eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/name/dnd/NameEditorDragListener.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.name.dnd;
   5
   6 import org.eclipse.swt.dnd.DND;
   7 import org.eclipse.swt.dnd.DragSourceAdapter;
   8 import org.eclipse.swt.dnd.DragSourceEvent;
   9 import org.eclipse.ui.forms.ManagedForm;
  10
  11 import eu.etaxonomy.cdm.model.common.ICdmBase;
  12 import eu.etaxonomy.taxeditor.editor.CdmDataTransfer;
  13 import eu.etaxonomy.taxeditor.editor.name.container.AbstractGroupedContainer;
  14
  15 /**
  16  * <p>NameEditorDragListener class.</p>
  17  *
  18  * @author n.hoffmann
  19  * @version $Id: $
  20  */
  21 public class NameEditorDragListener extends DragSourceAdapter {
  22
  23         private AbstractGroupedContainer container;
  24
  25         /**
  26          * <p>Constructor for NameEditorDragListener.</p>
  27          *
  28          * @param container a {@link eu.etaxonomy.taxeditor.editor.name.container.AbstractGroupedContainer} object.
  29          */
  30         public NameEditorDragListener(AbstractGroupedContainer container){
  31                 this.container = container;
  32         }
  33
  34         /** {@inheritDoc} */
  35         public void dragFinished(DragSourceEvent event) {
  36                 if(!event.doit)
  37                         return;
  38                 if(event.detail == DND.DROP_MOVE){
  39                         ManagedForm managedForm = container.getGroup().getEditor().getManagedForm();
  40                         container.getGroup().remove(container);
  41                         managedForm.reflow(true);
  42                 }
  43
  44         };
  45
  46         /** {@inheritDoc} */
  47         @Override
  48         public void dragSetData(DragSourceEvent event) {
  49                 ICdmBase[] cdmBaseObjects = new ICdmBase[]{(ICdmBase) container.getData()};
  50                 if(CdmDataTransfer.getInstance().isSupportedType(event.dataType)){
  51                         event.data = cdmBaseObjects;
  52                 }
  53         }
  54
  55         /** {@inheritDoc} */
  56         @Override
  57         public void dragStart(DragSourceEvent event) {
  58                 event.doit = container.getData() != null;
  59         }
  60 }