eclipseprojects/eu.etaxonomy.taxeditor/src/eu/etaxonomy/taxeditor/view/nameviewersupport/GroupComposite.java

   1 package eu.etaxonomy.taxeditor.view.nameviewersupport;
   2
   3 import org.eclipse.swt.SWT;
   4 import org.eclipse.swt.dnd.DND;
   5 import org.eclipse.swt.dnd.DropTarget;
   6 import org.eclipse.swt.dnd.DropTargetAdapter;
   7 import org.eclipse.swt.dnd.DropTargetEvent;
   8 import org.eclipse.swt.dnd.Transfer;
   9 import org.eclipse.swt.widgets.Composite;
  10 import org.eclipse.swt.widgets.Display;
  11 import org.eclipse.ui.forms.widgets.TableWrapData;
  12 import org.eclipse.ui.forms.widgets.TableWrapLayout;
  13
  14 import eu.etaxonomy.cdm.model.name.HomotypicalGroup;
  15 import eu.etaxonomy.taxeditor.controller.WidgetTransfer;
  16
  17 public class GroupComposite extends Composite {
  18
  19         HomotypicalGroup homotypicalGroup;
  20         boolean acceptedGroup;
  21
  22         public GroupComposite(Composite parent, HomotypicalGroup homotypicalGroup) {
  23                 super(parent, SWT.NONE);
  24
  25                 this.homotypicalGroup = homotypicalGroup;
  26
  27                 // Graphic layout of composite
  28                 this.setLayoutData(new TableWrapData(TableWrapData.FILL_GRAB));
  29                 this.setLayout(new TableWrapLayout());
  30                 this.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
  31
  32                 // Drop functionality
  33 //              Transfer[] types = new Transfer[] {TaxonTransfer.getInstance()};
  34                 Transfer[] types = new Transfer[] {WidgetTransfer.getInstance()};
  35                 int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT;
  36                 DropTarget target = new DropTarget(this, operations);
  37                 target.setTransfer(types);
  38                 target.addDropListener(new DropTargetAdapter() {
  39
  40                         public void dragEnter(DropTargetEvent event) {
  41                                 GroupComposite.this.notifyListeners(SWT.FocusIn, null);
  42                         }
  43
  44                         public void dragLeave(DropTargetEvent event) {
  45                                 GroupComposite.this.notifyListeners(SWT.FocusOut, null);
  46                         }
  47
  48                         public void drop(DropTargetEvent event) {
  49
  50                                 if (event.data instanceof Composite) {
  51                                         Composite composite = (Composite) event.data;
  52                                         if ( ! composite.getParent().equals(GroupComposite.this)) {
  53                                                 composite.setParent(GroupComposite.this);
  54                                         }
  55                                 }
  56                         }
  57                 });
  58         }
  59         public HomotypicalGroup getHomotypicalGroup() {
  60                 return homotypicalGroup;
  61         }
  62 }