// ! [1]
protected void dropEvent(QDropEvent event) {
if (event.source() == this && event.possibleActions().isSet(Qt.DropAction.MoveAction)) return;
// ! [1]
// ! [2]
if (event.proposedAction().equals(Qt.DropAction.MoveAction)) {
event.acceptProposedAction();
// Process the data from the event.
// ! [2]
dragResult.emit(tr("The data was moved here."));
// ! [3]
} else if (event.proposedAction().equals(Qt.DropAction.CopyAction)) {
event.acceptProposedAction();
// Process the data from the event.
// ! [3]
dragResult.emit(tr("The data was copied here."));
// ! [4]
} else {
// Ignore the drop.
return;
}
// ! [4]
// End of quote
mimeTypes.emit(event.mimeData().formats());
setData(
event.mimeData().formats().get(0),
event.mimeData().data(event.mimeData().formats().get(0)));
// ! [5]
}
// ! [7]
protected void mouseMoveEvent(QMouseEvent event) {
if (!(event.buttons().isSet(Qt.MouseButton.LeftButton))) return;
if ((event.pos().subtract(dragStartPosition)).manhattanLength()
< QApplication.startDragDistance()) return;
QDrag drag = new QDrag(this);
QMimeData mimeData = new QMimeData();
mimeData.setData(mimeType, data);
drag.setMimeData(mimeData);
Qt.DropAction dropAction = drag.exec(Qt.DropAction.CopyAction, Qt.DropAction.MoveAction);
// ! [7]
switch (dropAction) {
case CopyAction:
dragResult.emit(tr("The text was copied."));
break;
case MoveAction:
dragResult.emit(tr("The text was moved."));
break;
default:
dragResult.emit(tr("Unknown action."));
break;
}
// ! [8]
}