EventExpose.hs


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

Generated when all or part of a window becomes visible and needs to be
redrawn.
-}

module GI.Gdk.Structs.EventExpose
    ( 

-- * Exported types
    EventExpose(..)                         ,
    newZeroEventExpose                      ,
    noEventExpose                           ,


 -- * Properties
-- ** Area
    eventExposeReadArea                     ,


-- ** Count
    eventExposeReadCount                    ,


-- ** Region
    eventExposeReadRegion                   ,


-- ** SendEvent
    eventExposeReadSendEvent                ,


-- ** Type
    eventExposeReadType                     ,


-- ** Window
    eventExposeReadWindow                   ,




    ) 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
import qualified GI.Cairo as Cairo

newtype EventExpose = EventExpose (ForeignPtr EventExpose)
-- | Construct a `EventExpose` struct initialized to zero.
newZeroEventExpose :: MonadIO m => m EventExpose
newZeroEventExpose = liftIO $ callocBytes 56 >>= wrapPtr EventExpose

noEventExpose :: Maybe EventExpose
noEventExpose = Nothing

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

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

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

eventExposeReadArea :: EventExpose -> IO Rectangle
eventExposeReadArea s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 20) :: IO (Ptr Rectangle)
    val' <- (newBoxed Rectangle) val
    return val'

eventExposeReadRegion :: EventExpose -> IO Cairo.Region
eventExposeReadRegion s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 40) :: IO (Ptr Cairo.Region)
    val' <- (newBoxed Cairo.Region) val
    return val'

eventExposeReadCount :: EventExpose -> IO Int32
eventExposeReadCount s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 48) :: IO Int32
    return val

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

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

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