FilterProxy model

[gyre]

I dont know...I tried to implement the model as show in example but it somehow doesnt work...Can anyone tell me why not ? ...
I attached the header and source files Im using...
Thanks

[gyre]

I changed the files to ones that are in attachements...
Filtering now works OK...but when I remove all characters from lineedit from which I control filtering the model does not get to the original state and ALL items are filtered...dont know why

[gyre]

I have found a problem...it has to be checked whether the regexps are empty...
see the attached code if youre interested...