Hi,
On 04.08.2016 20:52, Sébastien Le Ray wrote:
Hi
Thanks for your answer
I know about xxxInsertRow but these are meant to be called by the
model (or at least by a class that has knowledge of the model). The
question is how to properly call it when the only notification you get
from the data is "this row was added|removed".
You can use signal/slot mechanism to notify your model. I can't
understand what is the problem. There are different solutions. Where you
receive this notification?
Regards
Le 04/08/2016 à 19:33, Igor Mironchik a écrit :
Hi,
I'm not sure what are you talking about. But what about
beginInsertRows() and endInsertRows()? Between this methods you
should add new data, and this data can has child rows.
What is the problem?
On 04.08.2016 19:48, Sébastien Le Ray wrote:
Hi list,
I'm currently designing an application which presents its data in a
tree. I have a QAbstractItemModel making a bridge between these data
and the view, so far so good.
However I'm stuck when it comes to react to underlying data
structure changes, specifically when rows are added and removed.
Model has to react before and after the row is added, however, the
only information it gets is "row added" signal. Worse, adding a row
can add the row and some subitems (some objects creates mandatory
children).
What is the proper way to deal with this? Should I have some kind of
proxy between the data and the mode?
Regards
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