[Qt-interest] QAbstractItemModel::setHeaderData() and headerData()

[Sean Harmer]

Hi,

On Friday 29 January 2010 16:03:38 j wrote:
> > I think this is where your design error is!
> > Don't do this please. It is not supported by Qt to inherit from QObject
> > twice. Furthermore,  you are confusing the different roles the
> > components play. A model is something very different from a view. If you
> > want to combine them in a single class, you should a has-a instead of an
> > is-a relation.
> 
> hmm, yes, well.. I'm implementing a specific view on a specific model,
> so I felt in this case it made sense to have this is-a relation.
> But I followed your advice, and now I have a working pattern.
> Would you agree on this :

OK so why not do the simple thing and derive your own view that contains the 
model? E.g.

class MyModel : public QTableModel
{
...
};

class MyView : public QTableView
{
public:
    MyView( QWidget* parent = 0 )
    : QTableView( parent ),
      m_model( new MyModel )
    {
        setModel( m_model );
    }
...
private:
    MyModel* m_model;
};

No need for multiple inheritance. Just get you MyModel class to override the 
headerData() function as normal and you are set.

Or did I miss something subtle that you need in addition?

Cheers,

Sean