{-# LANGUAGE EmptyDataDecls, ExistentialQuantification,
  FlexibleContexts, FlexibleInstances, ForeignFunctionInterface,
  MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies,
  TypeSynonymInstances #-}
module OGDF.Color.Interface where
import Data.Word
import Data.Int
import Foreign.C
import Foreign.Ptr
import FFICXX.Runtime.Cast
import OGDF.Color.RawType
import STD.Deletable.Interface

class (IDeletable a) => IColor a where

upcastColor :: forall a . (FPtr a, IColor a) => a -> Color
upcastColor h
  = let fh = get_fptr h
        fh2 :: Ptr RawColor = castPtr fh
      in cast_fptr_to_obj fh2

downcastColor :: forall a . (FPtr a, IColor a) => Color -> a
downcastColor h
  = let fh = get_fptr h
        fh2 = castPtr fh
      in cast_fptr_to_obj fh2
