    {-# INCLUDE "HsXlib.h" #-}
    {-# LINE 1 "Graphics/X11/Xlib/Types.hsc" #-}
    {-# OPTIONS_GHC -fglasgow-exts #-}
    {-# LINE 2 "Graphics/X11/Xlib/Types.hsc" #-}
    -----------------------------------------------------------------------------
    -- |
    -- Module      :  Graphics.X11.Xlib.Types
    -- Copyright   :  (c) Alastair Reid, 1999-2003
    -- License     :  BSD-style (see the file libraries/base/LICENSE)
    --
    -- Maintainer  :  libraries@haskell.org
    -- Stability   :  provisional
    -- Portability :  portable
    --
    -- A collection of type declarations for interfacing with Xlib.
    --
    -----------------------------------------------------------------------------

    -- #hide
    module Graphics.X11.Xlib.Types(
            Display(..), Screen(..), Visual, GC, GCValues, SetWindowAttributes,
            Image(..), Point(..), Rectangle(..), Arc(..), Segment(..), Color(..),
            Pixel, Position, Dimension, Angle, ScreenNumber, Buffer
            ) where

    -- import Control.Monad( zipWithM_ )
    import Data.Int
    import Data.Word
    import Foreign.C.Types
    -- import Foreign.Marshal.Alloc( allocaBytes )
    import Foreign.Ptr
    import Foreign.Storable( Storable(..) )

    {-# LINE 32 "Graphics/X11/Xlib/Types.hsc" #-}
    import Data.Generics

    {-# LINE 34 "Graphics/X11/Xlib/Types.hsc" #-}

    {-# LINE 36 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- Types
    ----------------------------------------------------------------

    -- | pointer to an X11 @Display@ structure
    newtype Display    = Display    (Ptr Display)

    {-# LINE 44 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 48 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @Screen@ structure
    newtype Screen     = Screen     (Ptr Screen)

    {-# LINE 52 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 56 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @Visual@ structure
    newtype Visual     = Visual     (Ptr Visual)

    {-# LINE 60 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 64 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @GC@ structure
    newtype GC         = GC         (Ptr GC)

    {-# LINE 68 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 72 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @XGCValues@ structure
    newtype GCValues   = GCValues  (Ptr GCValues)

    {-# LINE 76 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 80 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @XSetWindowAttributes@ structure
    newtype SetWindowAttributes = SetWindowAttributes (Ptr SetWindowAttributes)

    {-# LINE 84 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 88 "Graphics/X11/Xlib/Types.hsc" #-}

    -- | pointer to an X11 @XImage@ structure
    newtype Image    = Image    (Ptr Image)

    {-# LINE 92 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Ord, Show, Typeable, Data)

    {-# LINE 96 "Graphics/X11/Xlib/Types.hsc" #-}

    type Pixel         = Word32
    {-# LINE 98 "Graphics/X11/Xlib/Types.hsc" #-}
    type Position      = Int32
    {-# LINE 99 "Graphics/X11/Xlib/Types.hsc" #-}
    type Dimension     = Word32
    {-# LINE 100 "Graphics/X11/Xlib/Types.hsc" #-}
    type Angle         = CInt
    type ScreenNumber  = Word32
    type Buffer        = CInt

    ----------------------------------------------------------------
    -- Short forms used in structs
    ----------------------------------------------------------------

    type ShortPosition = CShort
    type ShortDimension = CUShort
    type ShortAngle    = CShort

    peekPositionField :: Ptr a -> CInt -> IO Position
    peekPositionField ptr off = do
            v <- peekByteOff ptr (fromIntegral off)
            return (fromIntegral (v::ShortPosition))

    peekDimensionField :: Ptr a -> CInt -> IO Dimension
    peekDimensionField ptr off = do
            v <- peekByteOff ptr (fromIntegral off)
            return (fromIntegral (v::ShortDimension))

    peekAngleField :: Ptr a -> CInt -> IO Angle
    peekAngleField ptr off = do
            v <- peekByteOff ptr (fromIntegral off)
            return (fromIntegral (v::ShortAngle))

    pokePositionField :: Ptr a -> CInt -> Position -> IO ()
    pokePositionField ptr off v =
            pokeByteOff ptr (fromIntegral off) (fromIntegral v::ShortPosition)

    pokeDimensionField :: Ptr a -> CInt -> Dimension -> IO ()
    pokeDimensionField ptr off v =
            pokeByteOff ptr (fromIntegral off) (fromIntegral v::ShortDimension)

    pokeAngleField :: Ptr a -> CInt -> Angle -> IO ()
    pokeAngleField ptr off v =
            pokeByteOff ptr (fromIntegral off) (fromIntegral v::ShortAngle)

    ----------------------------------------------------------------
    -- Point
    ----------------------------------------------------------------

    -- | counterpart of an X11 @XPoint@ structure
    data Point = Point { pt_x :: !Position, pt_y :: !Position }

    {-# LINE 146 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Show, Typeable, Data)

    {-# LINE 150 "Graphics/X11/Xlib/Types.hsc" #-}

    instance Storable Point where
            sizeOf _ = (4)
    {-# LINE 153 "Graphics/X11/Xlib/Types.hsc" #-}
            alignment _ = alignment (undefined::CInt)
            peek p = do
                    x <- peekPositionField p (0)
    {-# LINE 156 "Graphics/X11/Xlib/Types.hsc" #-}
                    y <- peekPositionField p (2)
    {-# LINE 157 "Graphics/X11/Xlib/Types.hsc" #-}
                    return (Point x y)
            poke p (Point x y) = do
                    pokePositionField p (0) x
    {-# LINE 160 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (2) y
    {-# LINE 161 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- Rectangle
    ----------------------------------------------------------------

    -- | counterpart of an X11 @XRectangle@ structure
    data Rectangle = Rectangle {
            rect_x      :: !Position,
            rect_y      :: !Position,
            rect_width  :: !Dimension,
            rect_height :: !Dimension
            }

    {-# LINE 174 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Read, Show, Typeable, Data)

    {-# LINE 178 "Graphics/X11/Xlib/Types.hsc" #-}

    instance Storable Rectangle where
            sizeOf _ = (8)
    {-# LINE 181 "Graphics/X11/Xlib/Types.hsc" #-}
            alignment _ = alignment (undefined::CInt)
            peek p = do
                    x       <- peekPositionField p (0)
    {-# LINE 184 "Graphics/X11/Xlib/Types.hsc" #-}
                    y       <- peekPositionField p (2)
    {-# LINE 185 "Graphics/X11/Xlib/Types.hsc" #-}
                    width   <- peekDimensionField p (4)
    {-# LINE 186 "Graphics/X11/Xlib/Types.hsc" #-}
                    height  <- peekDimensionField p (6)
    {-# LINE 187 "Graphics/X11/Xlib/Types.hsc" #-}
                    return (Rectangle x y width height)
            poke p (Rectangle x y width height) = do
                    pokePositionField p (0) x
    {-# LINE 190 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (2) y
    {-# LINE 191 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeDimensionField p (4) width
    {-# LINE 192 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeDimensionField p (6) height
    {-# LINE 193 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- Arc
    ----------------------------------------------------------------

    -- | counterpart of an X11 @XArc@ structure
    data Arc = Arc {
            arc_x :: Position,
            arc_y :: Position,
            arc_width :: Dimension,
            arc_height :: Dimension,
            arc_angle1 :: Angle,
            arc_angle2 :: Angle
            }

    {-# LINE 208 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Show, Typeable)

    {-# LINE 212 "Graphics/X11/Xlib/Types.hsc" #-}

    instance Storable Arc where
            sizeOf _ = (12)
    {-# LINE 215 "Graphics/X11/Xlib/Types.hsc" #-}
            alignment _ = alignment (undefined::CInt)
            peek p = do
                    x       <- peekPositionField p (0)
    {-# LINE 218 "Graphics/X11/Xlib/Types.hsc" #-}
                    y       <- peekPositionField p (2)
    {-# LINE 219 "Graphics/X11/Xlib/Types.hsc" #-}
                    width   <- peekDimensionField p (4)
    {-# LINE 220 "Graphics/X11/Xlib/Types.hsc" #-}
                    height  <- peekDimensionField p (6)
    {-# LINE 221 "Graphics/X11/Xlib/Types.hsc" #-}
                    angle1  <- peekAngleField p (8)
    {-# LINE 222 "Graphics/X11/Xlib/Types.hsc" #-}
                    angle2  <- peekAngleField p (10)
    {-# LINE 223 "Graphics/X11/Xlib/Types.hsc" #-}
                    return (Arc x y width height angle1 angle2)
            poke p (Arc x y width height angle1 angle2) = do
                    pokePositionField p (0) x
    {-# LINE 226 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (2) y
    {-# LINE 227 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeDimensionField p (4) width
    {-# LINE 228 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeDimensionField p (6) height
    {-# LINE 229 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeAngleField p (8) angle1
    {-# LINE 230 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokeAngleField p (10) angle2
    {-# LINE 231 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- Segment
    ----------------------------------------------------------------

    -- | counterpart of an X11 @XSegment@ structure
    data Segment = Segment {
            seg_x1 :: Position,
            seg_y1 :: Position,
            seg_x2 :: Position,
            seg_y2 :: Position
            }

    {-# LINE 244 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Show, Typeable, Data)

    {-# LINE 248 "Graphics/X11/Xlib/Types.hsc" #-}

    instance Storable Segment where
            sizeOf _ = (8)
    {-# LINE 251 "Graphics/X11/Xlib/Types.hsc" #-}
            alignment _ = alignment (undefined::CInt)
            peek p = do
                    x1 <- peekPositionField p (0)
    {-# LINE 254 "Graphics/X11/Xlib/Types.hsc" #-}
                    y1 <- peekPositionField p (2)
    {-# LINE 255 "Graphics/X11/Xlib/Types.hsc" #-}
                    x2 <- peekPositionField p (4)
    {-# LINE 256 "Graphics/X11/Xlib/Types.hsc" #-}
                    y2 <- peekPositionField p (6)
    {-# LINE 257 "Graphics/X11/Xlib/Types.hsc" #-}
                    return (Segment x1 y1 x2 y2)
            poke p (Segment x1 y1 x2 y2) = do
                    pokePositionField p (0) x1
    {-# LINE 260 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (2) y1
    {-# LINE 261 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (4) x2
    {-# LINE 262 "Graphics/X11/Xlib/Types.hsc" #-}
                    pokePositionField p (6) y2
    {-# LINE 263 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- Color
    ----------------------------------------------------------------

    -- | counterpart of an X11 @XColor@ structure
    data Color = Color {
            color_pixel :: Pixel,
            color_red :: Word16,
            color_green :: Word16,
            color_blue :: Word16,
            color_flags :: Word8
            }

    {-# LINE 277 "Graphics/X11/Xlib/Types.hsc" #-}
            deriving (Eq, Show, Typeable, Data)

    {-# LINE 281 "Graphics/X11/Xlib/Types.hsc" #-}

    instance Storable Color where
            sizeOf _ = (12)
    {-# LINE 284 "Graphics/X11/Xlib/Types.hsc" #-}
            alignment _ = alignment (undefined::CInt)
            peek p = do
                    pixel   <- (\hsc_ptr -> peekByteOff hsc_ptr 0) p
    {-# LINE 287 "Graphics/X11/Xlib/Types.hsc" #-}
                    red     <- (\hsc_ptr -> peekByteOff hsc_ptr 4)   p
    {-# LINE 288 "Graphics/X11/Xlib/Types.hsc" #-}
                    green   <- (\hsc_ptr -> peekByteOff hsc_ptr 6) p
    {-# LINE 289 "Graphics/X11/Xlib/Types.hsc" #-}
                    blue    <- (\hsc_ptr -> peekByteOff hsc_ptr 8)  p
    {-# LINE 290 "Graphics/X11/Xlib/Types.hsc" #-}
                    flags   <- (\hsc_ptr -> peekByteOff hsc_ptr 10) p
    {-# LINE 291 "Graphics/X11/Xlib/Types.hsc" #-}
                    return (Color pixel red green blue flags)
            poke p (Color pixel red green blue flags) = do
                    (\hsc_ptr -> pokeByteOff hsc_ptr 0)    p pixel
    {-# LINE 294 "Graphics/X11/Xlib/Types.hsc" #-}
                    (\hsc_ptr -> pokeByteOff hsc_ptr 4)      p red
    {-# LINE 295 "Graphics/X11/Xlib/Types.hsc" #-}
                    (\hsc_ptr -> pokeByteOff hsc_ptr 6)    p green
    {-# LINE 296 "Graphics/X11/Xlib/Types.hsc" #-}
                    (\hsc_ptr -> pokeByteOff hsc_ptr 8)     p blue
    {-# LINE 297 "Graphics/X11/Xlib/Types.hsc" #-}
                    (\hsc_ptr -> pokeByteOff hsc_ptr 10)    p flags
    {-# LINE 298 "Graphics/X11/Xlib/Types.hsc" #-}

    ----------------------------------------------------------------
    -- End
    ----------------------------------------------------------------