@Override
public boolean canImport(TransferHandler.TransferSupport info) {
boolean b =
(info.getComponent() == table)
&& info.isDrop()
&& info.isDataFlavorSupported(localObjectFlavor);
table.setCursor(b ? DragSource.DefaultMoveDrop : DragSource.DefaultMoveNoDrop);
return b;
}
/**
* Imports data if the specific flavor is supported
*
* @return Boolean
*/
public boolean importData(TransferHandler.TransferSupport info) {
if (!info.isDrop()) {
return false;
}
// Check for String flavor
if (!info.isDataFlavorSupported(DataFlavor.stringFlavor)) {
System.out.println("Data flavor not supported.");
return false;
}
JList.DropLocation dl = (JList.DropLocation) info.getDropLocation();
DefaultListModel listModel = (DefaultListModel) list.getModel();
int index = dl.getIndex();
boolean insert = dl.isInsert();
// Get the current string under the drop.
// String value = (String)listModel.getElementAt(index);
// Get the string that is being dropped.
Transferable t = info.getTransferable();
String data;
try {
data = (String) t.getTransferData(DataFlavor.stringFlavor);
} catch (Exception e) {
return false;
}
/**
* This is commented out for the basicdemo.html tutorial page. * If you add this code snippet
* back and delete the * "return false;" line, the list will accept drops * of type string.
*/
// Perform the actual import.
if (insert) {
listModel.add(index, data);
} else {
listModel.set(index, data);
}
return true;
}
