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pyqt: multiple selections in QListView

Bob Parnes rparnes at megalink.net
Fri Jul 16 08:33:30 EDT 2004 
On Tue, 13 Jul 2004 00:25:02 -0700, Jim <tiredofspam at anyaccount.com> wrote:
> Bob Parnes wrote:
> 
>> I cannot find a reference on identifying multiple selections in
>> QListView. Apparently one has to iterate through all the items and test
>> each individually, but I don't know how to do the iteration. The qt3
>> documentation suggests QListViewItemIterator, but this does not seem to
>> be available in python.
> 
> I think this will walk through all of the QListViewItems in a QListView
> (haven't tried it though) and give you a list of selected items:
> 
> def getSelectedItems (listView):
>     selectedLVIList = []
>     listViewItem = listView.firstChild()
> 
>     scan(listViewItem, selectedLVIList)
> 
>     return selectedLVIList
>         
> def scan(listViewItem, selectedLVIList):    
>     while listViewItem:
>         if listViewItem.isSelected():
>             selectedLVIList.append(listViewItem)
> 
>         scan(listViewItem.firstChild())
> 
>         listViewItem = listViewItem.nextSibling()
> 
> The docs say that you might not traverse the list view items in sort order
> using firstChild/nextSibling. This also doesn't keep track explicitly of
> which level an item is on, although you can trace back each item's
> parent(s) (or else modify the code to track that).
> 
> Jim
> 

Thanks very much, the only error is that the nested call to scan needs
selectedLVList as a second argument. My list has only two levels, and I
do not need to maintain sort order, so this does what I need.

Bob

-- 
Bob Parnes
rparnes at megalink.net
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