{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (garetxe@gmail.com)
-}

module GI.Cairo.Structs.Matrix
    ( 

-- * Exported types
    Matrix(..)                              ,
    noMatrix                                ,


    ) where

import Data.GI.Base.ShortPrelude
import qualified Data.GI.Base.ShortPrelude as SP
import qualified Data.GI.Base.Overloading as O
import qualified Prelude as P

import qualified Data.GI.Base.Attributes as GI.Attributes
import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP


newtype Matrix = Matrix (ManagedPtr Matrix)
-- XXX Wrapping a foreign struct/union with no known destructor or size, leak?
instance WrappedPtr Matrix where
    wrappedPtrCalloc = return nullPtr
    wrappedPtrCopy = return
    wrappedPtrFree = Nothing

noMatrix :: Maybe Matrix
noMatrix = Nothing


instance O.HasAttributeList Matrix
type instance O.AttributeList Matrix = MatrixAttributeList
type MatrixAttributeList = ('[ ] :: [(Symbol, *)])

type family ResolveMatrixMethod (t :: Symbol) (o :: *) :: * where
    ResolveMatrixMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolveMatrixMethod t Matrix, O.MethodInfo info Matrix p) => O.IsLabelProxy t (Matrix -> p) where
    fromLabelProxy _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)

#if MIN_VERSION_base(4,9,0)
instance (info ~ ResolveMatrixMethod t Matrix, O.MethodInfo info Matrix p) => O.IsLabel t (Matrix -> p) where
    fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#endif