/**
* Imports data flavors and returns a true or false if the flavor is flavored or not
*
* @return Boolean
*/
public boolean canImport(TransferHandler.TransferSupport info) {
// we only import Strings
if (!info.isDataFlavorSupported(DataFlavor.stringFlavor)) {
return false;
}
JList.DropLocation dl = (JList.DropLocation) info.getDropLocation();
if (dl.getIndex() == -1) {
return false;
}
return true;
}
public boolean canImport(TransferSupport support) {
if (!inDrag || !support.isDataFlavorSupported(DATA_FLAVOUR)) {
return false;
}
JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
if (dl.getIndex() == -1) {
return false;
} else {
return true;
}
}
/**
* 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;
}
public boolean importData(TransferSupport support) {
if (!canImport(support)) {
return false;
}
Transferable transferable = support.getTransferable();
try {
Object draggedImage = transferable.getTransferData(DATA_FLAVOUR);
JList.DropLocation dl = (JList.DropLocation) support.getDropLocation();
DefaultListModel model = (DefaultListModel) playlist.getModel();
int dropIndex = dl.getIndex();
if (model.indexOf(draggedImage) < dropIndex) {
dropIndex--;
}
model.removeElement(draggedImage);
model.add(dropIndex, draggedImage);
callback.notify(Command.NEW_QUEUE, Arrays.asList(model.toArray()), gui.getCurrentZone());
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}