Hi,
I have an application with 2 listviews (and corresponding models). The
first list view lists items. The second lists references to this items
(which can occure multiple times).
Now I want support drag and drop such that items from the first list
viewcan be dropped in the second.
So I try enable drag and drop by doing the following:
In the main window:
self.ui.firstListView.setDragEnabled(True)
self.ui.secondListView.setAcceptDrops(True)
now for the model of the first ListView:
class FirstModel(QtCore.QAbstractListModel):
...
def flags(self, index):
return QtCore.QAbstractListModel.flags(self, index) |
QtCore.Qt.ItemIsDragEnabled
def mimeTypes(self):
return ["application/vnd.text.list"]
And for the second:
class SecondModel(QtCore.QAbstractListModel):
...
def mimeTypes(self):
return ["application/vnd.text.list"]
def dropMimeData(self, data, action, row, column, parent = None):
print "dropMimeData"
Running the application I can drag items from the first listview, but I
can not drop it into the second (dropMimeData is never called).
What am I missing here?
Also:
As soon as I start dragging items, I get:
TypeError: invalid result type from FirstModel.rowCount()
rowCount returns an Int. Why do I get this message?
Thanks!
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