[Qt-interest] Question about Models, Roles and data

[Brad Howes]

On Aug 25, 2009, at 11:41 AM, Murphy, Sean M. wrote:

> So my question is, how many models do I create to get all the  
> different
> slices into my data?  Is the general rule of thumb that I need one  
> model
> per data class per view type?  Or can I play around with custom  
> roles to
> reduce the number of model classes I need?


If the indices change depending on the view, then I would recommend a  
different model. Otherwise, your code will get complicated very  
quickly with conditionals. Note that you can have a main model class  
and various proxy classes that do the modelIndex translation  
appropriate for the lists you want to manipulate. But in truth, the  
proxy class is really a separate modeling of the underlying data.

Brad

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Brad Howes
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