[Qt-interest] ***SPAM*** QAbstractItemModel edit process

[Ramesh]

I think you can  try implementing the delegate method for your list view,

And handle the update operation there of your wish

 

From: qt-interest-bounces at trolltech.com
[mailto:qt-interest-bounces at trolltech.com] On Behalf Of Nikos Gerontidis
Sent: Wednesday, April 21, 2010 6:59 PM
To: qt-interest at trolltech.com
Subject: ***SPAM*** [Qt-interest] QAbstractItemModel edit process

 

Hello list,

I have subclassed the QAbstractItemModel class and reimplemented the setData
and the other functions needed in order to make the model editable.
I have created custom items and my model follows a tree structure and
multiple columns. 
The problem is that when I edit my model for a given index for decoration
prurposes, then this results to setting all columns with decoration flags
enabled to 
be updated with the data given. To be more specific, I made an example post
:
setData(model->index(1,4),QColor(Qt::blue),Qt::DecorationRole)
after updating this then also the data of model->index(1,6) are being
updated.
The above situation is not happening though when my model is being updated
for the last column :
setData(model->index(1,6),QColor(Qt::blue),Qt::DecorationRole)
this does not result to an update of model->index(1,4) 

Does the model updates all remaining indexes until model->columnCount() ;
If yes how could I end this update in order to set my data correctly? Any
ideas?
Thanks in advance..

-- 
Best Regards
Nikos Gerontidis


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