[Qt-interest] Confused about dataChanged Signal

[Bill Moo]

Hello again.

According the the v4.6.3 docs this signal is emitted when an existing item
changes, in addition to that the implication is that there is no requirement
for a setData(...) function on a read only model so with that in mind I'm of
the opinion that all is taken care of internally for this RO model.

However, I am seriously confused in that I never see any updates appearing
in the table view with one exception, and that only appears when I click the
view!

As I understand it (which must be incorrectly) I was assuming that the grid
would automagically get updated when my thread modified the member variables
having connected my Model's dataChanged(...) signal to my QTableView's
dataChanged Slot.

Before I launch the thread I have set the FileName (column 0) to say
"Processing File. Please wait..." however this change never appears in the
grid unless I click the view (which forces an update).

Due to the sheer size of the files being processed the the line number value
changes a lot, and I can see this in the qDebug() output, but the UI never
reflects this?

Of course I have to ask, because I am changing the values of these variables
does this then mean that my Model is in fact not RO but RW?

-- 
Bill
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