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

-- module HROOT.Class.Interface where

module HROOT.Class.TAttMarker.Interface where


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

import HROOT.Class.TAttMarker.RawType

import HROOT.Class.Deletable.Interface


class (IDeletable a) => ITAttMarker a where

    getMarkerColor :: a -> IO Int 

    getMarkerStyle :: a -> IO Int 

    getMarkerSize :: a -> IO Double 

    resetAttMarker :: a -> String -> IO () 

    setMarkerAttributes :: a -> IO () 

    setMarkerColor :: a -> Int -> IO () 

    setMarkerStyle :: a -> Int -> IO () 

    setMarkerSize :: a -> Int -> IO () 

instance Existable TAttMarker where
  data Exist TAttMarker = forall a. (FPtr a, ITAttMarker a) => ETAttMarker a

upcastTAttMarker :: (FPtr a, ITAttMarker a) => a -> TAttMarker
upcastTAttMarker h = let fh = get_fptr h
                         fh2 :: ForeignPtr RawTAttMarker = castForeignPtr fh
                     in cast_fptr_to_obj fh2