[Qt-interest] Fwd: Fwd: QAbstractItemModel edit process

[Nikos Gerontidis]

---------- Forwarded message ----------
From: CarstenBreuer <CarstenBreuerOSS at textwork.de>
Date: Thu, Apr 22, 2010 at 12:31 AM
Subject: Re: [Qt-interest] Fwd: QAbstractItemModel edit process
To: Nikos Gerontidis <geronik444 at gmail.com>


>> 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
> That depends on how you implemented setData. It sounds like you
accidentally
> implemented it to change the color of all columns instead of just one.

Yes, i think so to. Perhaps the role checking is missing.
if (role == Qt::DecoraticeRole)
{
}
else
{
  return QVariant();
}

Regards,


Carsten
>
>> Thanks in advance..
>>
>
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>
> Hi,
> This could be it, I will check it and post again.
> Thanks anyway.
>
> --
> Best Regards
> Nikos Gerontidis
>
>
>
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This was it, I had to implement the setData function properly
excerpt code :
setData(..)
{
   if (role == Qt::DecorationRole)
   {
      if (trueVal)
        return true;
     else
       return false
    }
if (role == ...)
..
}
and also in the same way the data function..
Thanks a lot guys..
-- 
Best Regards
Nikos Gerontidis
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