[PyQt] Drag & Drop with QTreeWidget
bazwal at ftml.net
Tue Dec 1 19:39:59 GMT 2009
> Hi all
> I'm trying to implement Drag & Drop in my QTreeWidget based GUI but
> it is not clear to me how to proceed (after having read the Doc and
> googled it).
> I have several question (tree = QTreeWidget())
> 1) I have activated:
> yet before I would just keep the mouse pressed and slide over
> the selection I wanted but now that is not possible. Is there a way
> to maintain such behaviour and force that the drag is only performed
> on a second click over the selection ?
not sure i undertstand what you mean - but i would have thought the
selection behaviour changed because you enabled drag and drop, not
because you changed the selection mode.
> 2) how do I force a certain QTreeWidgetItem NOT to accept drops ?
> 3) I have a specific tree:
> | --- Campaign1
> | |
> | |---- Folder1
> | |
> | |------ Calc1
> path1 (where path1= /home/ .... /Folder1/calcname1
> | |------ Calc2
> path2 (where path2= /home/ .... /Folder1/calcname2
> | --- Campaign2
> So what I would like would be to drag only items of name
> "calc*" to nodes of type "campaign" (ex: Campaign2)
use QTreeWidgetItem flags to control which items can be dropped
> and when doing so create the sub-node "Folder1" if it does not exist within
> "campaign" and put the dragged items under "folder1" (and not
> "campaign" where they were dropped). How to do this ? Do I do this
> in a dropEvent? In a dropEventAction ?
you could monitor the tree using QTreeView.rowsInserted and then
reparent dropped items as necessary.
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