Посмотрите пожалуйста, что я не так сделал? Drag&Drop не хочет работать
| Код |
public class DNDTable extends JTable implements DropTargetListener, DragSourceListener, DragGestureListener {
//private DropTarget dropTarget = null;
private DragSource dragSource = null;
private int[] selectedRows;
private int[] selectedColumns;
protected static Object dndObj;
public DNDTable() {
super(new DefaultTableModel());
initComponents();
}
public DNDTable(TableModel dm) {
super(dm);
}
public DNDTable(final Object[][] rowData, final Object[] columnNames) {
super(rowData, columnNames);
}
private void initComponents() {
//dropTarget = new DropTarget(this, this);
dragSource = new DragSource();
dragSource.createDefaultDragGestureRecognizer(this, DnDConstants.ACTION_MOVE, this);
}
public void drop(DropTargetDropEvent event) {
Transferable transferable = event.getTransferable();
event.acceptDrop(DnDConstants.ACTION_MOVE);
event.getDropTargetContext().dropComplete(true);
dragDropFinish(transferable);
}
public void dragGestureRecognized(DragGestureEvent event) {
selectedRows = getSelectedRows();
selectedColumns = getSelectedColumns();
if (selectedRows.length != 0) {
Transferable transfer = dragDropStart();
if (transfer==null) transfer = new StringSelection(selectedRows+"|"+selectedColumns);
// as the name suggests, starts the dragging
try {
dragSource.startDrag(event, DragSource.DefaultCopyDrop, transfer, this);
} catch (InvalidDnDOperationException e) {
System.err.println(e.getMessage());
}
}
}
public Transferable dragDropStart() {
System.out.println("[VLR] DNDTable.dragDropStart() selectedRows="+selectedRows);
System.out.println("[VLR] DNDTable.dragDropStart() selectedColumns="+selectedColumns);
return null;
}
/** override it!*/
public void dragDropFinish(Transferable transfer) {
System.out.println("[VLR] DNDTable.dragDropFinish()");
}
public void dragDropEnd(DragSourceDropEvent evt) {
return;
}
public void dragEnter(DragSourceDragEvent evt) {
return;
}
public void dragExit(DragSourceEvent evt) {
return;
}
public void dragOver(DragSourceDragEvent evt) {
return;
}
public void dropActionChanged(DragSourceDragEvent evt) {
return;
}
public void dragEnter(DropTargetDragEvent event){
event.acceptDrag (DnDConstants.ACTION_MOVE);
}
public void dragExit(DropTargetEvent event){}
public void dragOver(DropTargetDragEvent event) {
}
public void dropActionChanged ( DropTargetDragEvent event ){}
}
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