public delegate void StaticFilterMapFunc (Model orig_model, FilterModel filter_model, void* data)
Function used to collect the rows from a model that should be included in a FilterModel .
The iteration over the original model is purposely left to the map func in order to allow optimized iterations if the the caller has a priori knowledge of the sorting and grouping of the data in the original model.
The model containing the original data to filter
The model that will contain the filtered results. The filter func must iterate over
User data passed together with the filter func