EventVisibility.hs


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

Generated when the window visibility status has changed.
-}

module GI.Gdk.Structs.EventVisibility
    ( 

-- * Exported types
    EventVisibility(..)                     ,
    newZeroEventVisibility                  ,
    noEventVisibility                       ,


 -- * Properties
-- ** SendEvent
    eventVisibilityReadSendEvent            ,


-- ** State
    eventVisibilityReadState                ,


-- ** Type
    eventVisibilityReadType                 ,


-- ** Window
    eventVisibilityReadWindow               ,




    ) 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 EventVisibility = EventVisibility (ForeignPtr EventVisibility)
-- | Construct a `EventVisibility` struct initialized to zero.
newZeroEventVisibility :: MonadIO m => m EventVisibility
newZeroEventVisibility = liftIO $ callocBytes 24 >>= wrapPtr EventVisibility

noEventVisibility :: Maybe EventVisibility
noEventVisibility = Nothing

eventVisibilityReadType :: EventVisibility -> IO EventType
eventVisibilityReadType s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO CUInt
    let val' = (toEnum . fromIntegral) val
    return val'

eventVisibilityReadWindow :: EventVisibility -> IO Window
eventVisibilityReadWindow s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 8) :: IO (Ptr Window)
    val' <- (newObject Window) val
    return val'

eventVisibilityReadSendEvent :: EventVisibility -> IO Int8
eventVisibilityReadSendEvent s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 16) :: IO Int8
    return val

eventVisibilityReadState :: EventVisibility -> IO VisibilityState
eventVisibilityReadState s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 20) :: IO CUInt
    let val' = (toEnum . fromIntegral) val
    return val'

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

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

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