TimeCoord.hs


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

A #GdkTimeCoord stores a single event in a motion history.
-}

module GI.Gdk.Structs.TimeCoord
    ( 

-- * Exported types
    TimeCoord(..)                           ,
    newZeroTimeCoord                        ,
    noTimeCoord                             ,


 -- * Properties
-- ** Time
    timeCoordReadTime                       ,




    ) where

import Prelude ()
import Data.GI.Base.ShortPrelude

import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map

import GI.Gdk.Types
import GI.Gdk.Callbacks

newtype TimeCoord = TimeCoord (ForeignPtr TimeCoord)
-- | Construct a `TimeCoord` struct initialized to zero.
newZeroTimeCoord :: MonadIO m => m TimeCoord
newZeroTimeCoord = liftIO $ callocBytes 1032 >>= wrapPtr TimeCoord

noTimeCoord :: Maybe TimeCoord
noTimeCoord = Nothing

timeCoordReadTime :: TimeCoord -> IO Word32
timeCoordReadTime s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO Word32
    return val

-- XXX Skipped getter for "TimeCoord:axes" :: Not implemented: "Don't know how to unpack C array of type TCArray False 128 (-1) (TBasicType TDouble)"

type family ResolveTimeCoordMethod (t :: Symbol) (o :: *) :: * where
    ResolveTimeCoordMethod l o = MethodResolutionFailed l o

instance (info ~ ResolveTimeCoordMethod t TimeCoord, MethodInfo info TimeCoord p) => IsLabelProxy t (TimeCoord -> p) where
    fromLabelProxy _ = overloadedMethod (MethodProxy :: MethodProxy info)

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