{-# LANGUAGE ForeignFunctionInterface, TypeFamilies, MultiParamTypeClasses, 
             FlexibleInstances, TypeSynonymInstances, 
             EmptyDataDecls, ExistentialQuantification, ScopedTypeVariables #-}

-- module HROOT.Class.Interface where

module HROOT.Class.TGaxis.Interface where


import Data.Word
import Foreign.ForeignPtr
import HROOT.TypeCast

import HROOT.Class.TGaxis.RawType

import HROOT.Class.TLine.Interface
import HROOT.Class.TAttText.Interface


class (ITLine a,ITAttText a) => ITGaxis a where

instance Existable TGaxis where
  data Exist TGaxis = forall a. (FPtr a, ITGaxis a) => ETGaxis a

upcastTGaxis :: (FPtr a, ITGaxis a) => a -> TGaxis
upcastTGaxis h = let fh = get_fptr h
                     fh2 :: ForeignPtr RawTGaxis = castForeignPtr fh
                 in cast_fptr_to_obj fh2