{-# LINE 1 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

{-# LINE 2 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
{-# LANGUAGE Trustworthy #-}

{-# LINE 4 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
-----------------------------------------------------------------------------

-- |

-- Module      :  Graphics.Win32.GDI.Types

-- Copyright   :  (c) Alastair Reid, 1997-2003

-- License     :  BSD-style (see the file libraries/base/LICENSE)

--

-- Maintainer  :  Esa Ilari Vuokko <ei@vuokko.info>

-- Stability   :  provisional

-- Portability :  portable

--

-- A collection of FFI declarations for interfacing with Win32.

--

-----------------------------------------------------------------------------


module Graphics.Win32.GDI.Types
{-  -- still incomplete

        ( POINT,        marshall_point, unmarshall_point

        , ListPOINT,    marshall_ListPOINT_

        , ListLenPOINT, marshall_ListLenPOINT_

        , RECT,         marshall_rect, unmarshall_rect

        , SIZE,         marshall_size, unmarshall_size

        , nullPtr

        , HBITMAP       , MbHBITMAP

        , HFONT         , MbHFONT

        , HCURSOR       , MbHCURSOR

        , HICON         , MbHICON

        , HRGN          , MbHRGN

        , PRGN

        , HPALETTE      , MbHPALETTE

        , HBRUSH        , MbHBRUSH

        , HPEN          , MbHPEN

        , HACCEL        --, MbHACCEL

        , HDC           , MbHDC

        , HDWP          , MbHDWP

        , HWND          , MbHWND

        , HMENU         , MbHMENU

        , PolyFillMode

        , ArcDirection

        , MbArcDirection

        , GraphicsMode

        , MbGraphicsMode

        , BackgroundMode

        , HatchStyle

        , StretchBltMode

        , COLORREF

        , TextAlignment

        , ClippingMode

        , RegionType

        , gDI_ERROR

        )

-}
        where

import System.Win32.Types

import Control.Monad( zipWithM_ )
import Foreign



{-# CFILES cbits/HsGDI.c #-}

----------------------------------------------------------------

--

----------------------------------------------------------------


type POINT =
  ( LONG  -- x

  , LONG  -- y

  )

sizeofPOINT :: Int
sizeofPOINT = (8)
{-# LINE 77 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

allocaPOINT :: (Ptr POINT -> IO a) -> IO a
allocaPOINT =
  allocaBytes sizeofPOINT

peekPOINT :: Ptr POINT -> IO POINT
peekPOINT p = do
  x <- (\hsc_ptr -> peekByteOff hsc_ptr 0) p
{-# LINE 85 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  y <- (\hsc_ptr -> peekByteOff hsc_ptr 4) p
{-# LINE 86 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  return (x,y)

pokePOINT :: Ptr POINT -> POINT -> IO ()
pokePOINT p (x,y) = do
  (\hsc_ptr -> pokeByteOff hsc_ptr 0) p x
{-# LINE 91 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  (\hsc_ptr -> pokeByteOff hsc_ptr 4) p y
{-# LINE 92 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

withPOINT :: POINT -> (Ptr POINT -> IO a) -> IO a
withPOINT p f =
  allocaPOINT $ \ ptr -> do
  pokePOINT ptr p
  f ptr

type RECT =
  ( LONG  -- left

  , LONG  -- top

  , LONG  -- right

  , LONG  -- bottom

  )

allocaRECT :: (Ptr RECT -> IO a) -> IO a
allocaRECT =
  allocaBytes ((16))
{-# LINE 109 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

peekRECT :: Ptr RECT -> IO RECT
peekRECT p = do
  left   <- (\hsc_ptr -> peekByteOff hsc_ptr 0) p
{-# LINE 113 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  top    <- (\hsc_ptr -> peekByteOff hsc_ptr 4) p
{-# LINE 114 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  right  <- (\hsc_ptr -> peekByteOff hsc_ptr 8) p
{-# LINE 115 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  bottom <- (\hsc_ptr -> peekByteOff hsc_ptr 12) p
{-# LINE 116 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  return (left, top, right, bottom)

pokeRECT :: Ptr RECT -> RECT -> IO ()
pokeRECT p (left, top, right, bottom) = do
  (\hsc_ptr -> pokeByteOff hsc_ptr 0)   p left
{-# LINE 121 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  (\hsc_ptr -> pokeByteOff hsc_ptr 4)    p top
{-# LINE 122 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  (\hsc_ptr -> pokeByteOff hsc_ptr 8)  p right
{-# LINE 123 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  (\hsc_ptr -> pokeByteOff hsc_ptr 12) p bottom
{-# LINE 124 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

type SIZE =
  ( LONG  -- cx

  , LONG  -- cy

  )

allocaSIZE :: (Ptr SIZE -> IO a) -> IO a
allocaSIZE =
  allocaBytes ((8))
{-# LINE 133 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

peekSIZE :: Ptr SIZE -> IO SIZE
peekSIZE p = do
  cx <- (\hsc_ptr -> peekByteOff hsc_ptr 0) p
{-# LINE 137 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  cy <- (\hsc_ptr -> peekByteOff hsc_ptr 4) p
{-# LINE 138 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  return (cx,cy)

pokeSIZE :: Ptr SIZE -> SIZE -> IO ()
pokeSIZE p (cx,cy) = do
  (\hsc_ptr -> pokeByteOff hsc_ptr 0) p cx
{-# LINE 143 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}
  (\hsc_ptr -> pokeByteOff hsc_ptr 4) p cy
{-# LINE 144 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


withPOINTArray :: [POINT] -> (Ptr POINT -> Int -> IO a) -> IO a
withPOINTArray xs f = allocaBytes (sizeofPOINT * len) $ \ ptr -> do
  pokePOINTArray ptr xs
  f ptr len
 where
  len = length xs

pokePOINTArray :: Ptr POINT -> [POINT] -> IO ()
pokePOINTArray ptr xs = zipWithM_ (setPOINT ptr) [0..] xs

setPOINT :: Ptr POINT -> Int -> POINT -> IO ()
setPOINT ptr off = pokePOINT (ptr `plusPtr` (off*sizeofPOINT))

type   LPRECT   = Ptr RECT
type MbLPRECT   = Maybe LPRECT

withRECT :: RECT -> (Ptr RECT -> IO a) -> IO a
withRECT r f =
  allocaRECT $ \ ptr -> do
  pokeRECT ptr r
  f ptr

getRECT :: LPRECT -> IO RECT
getRECT = peekRECT

----------------------------------------------------------------

-- (GDI related) Handles

----------------------------------------------------------------


type   HBITMAP    = HANDLE
type MbHBITMAP    = Maybe HBITMAP

type   HFONT      = HANDLE
type MbHFONT      = Maybe HFONT

type   HCURSOR    = HICON
type MbHCURSOR    = Maybe HCURSOR

type   HICON      = HANDLE
type MbHICON      = Maybe HICON


-- This is not the only handle / resource that should be

-- finalised for you, but it's a start.

-- ToDo.


type   HRGN       = ForeignHANDLE
type   PRGN       = HANDLE

type MbHRGN       = Maybe HRGN

type   HPALETTE   = HANDLE
type MbHPALETTE   = Maybe HPALETTE

type   HBRUSH     = HANDLE
type MbHBRUSH     = Maybe HBRUSH

type   HPEN       = HANDLE
type MbHPEN       = Maybe HPEN

type   HACCEL     = HANDLE

type   HDC        = HANDLE
type MbHDC        = Maybe HDC

type   HDWP       = HANDLE
type MbHDWP       = Maybe HDWP

type   HWND       = HANDLE
type MbHWND       = Maybe HWND

hWND_BOTTOM     :: HWND
hWND_BOTTOM     = castUINTPtrToPtr 1
hWND_NOTOPMOST  :: HWND
hWND_NOTOPMOST  = castUINTPtrToPtr 18446744073709551614
hWND_TOP        :: HWND
hWND_TOP        = castUINTPtrToPtr 0
hWND_TOPMOST    :: HWND
hWND_TOPMOST    = castUINTPtrToPtr 18446744073709551615

{-# LINE 224 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

type   HMENU      = HANDLE
type MbHMENU      = Maybe HMENU

----------------------------------------------------------------

-- COLORREF

----------------------------------------------------------------


type COLORREF   = Word32
{-# LINE 233 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

foreign import ccall unsafe "HsGDI.h"
  rgb :: BYTE -> BYTE -> BYTE -> COLORREF

foreign import ccall unsafe "HsGDI.h"
  getRValue :: COLORREF -> BYTE

foreign import ccall unsafe "HsGDI.h"
  getGValue :: COLORREF -> BYTE

foreign import ccall unsafe "HsGDI.h"
  getBValue :: COLORREF -> BYTE

foreign import ccall unsafe "HsGDI.h"
  pALETTERGB :: BYTE -> BYTE -> BYTE -> COLORREF

foreign import ccall unsafe "HsGDI.h"
  pALETTEINDEX :: WORD -> COLORREF

----------------------------------------------------------------

-- RasterOp macro

----------------------------------------------------------------


type RasterOp3 = Word32
type RasterOp4 = Word32

foreign import ccall unsafe "HsGDI.h"
  mAKEROP4 :: RasterOp3 -> RasterOp3 -> RasterOp4

----------------------------------------------------------------

-- Miscellaneous enumerations

----------------------------------------------------------------


type PolyFillMode   = INT
aLTERNATE         :: PolyFillMode
aLTERNATE         =  1
wINDING           :: PolyFillMode
wINDING           =  2

{-# LINE 271 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type ArcDirection   = INT
type MbArcDirection = Maybe ArcDirection
aD_COUNTERCLOCKWISE  :: ArcDirection
aD_COUNTERCLOCKWISE  =  1
aD_CLOCKWISE         :: ArcDirection
aD_CLOCKWISE         =  2

{-# LINE 280 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type GraphicsMode   = DWORD
type MbGraphicsMode = Maybe GraphicsMode
gM_COMPATIBLE     :: GraphicsMode
gM_COMPATIBLE     =  1
gM_ADVANCED       :: GraphicsMode
gM_ADVANCED       =  2

{-# LINE 289 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type BackgroundMode = INT
tRANSPARENT   :: BackgroundMode
tRANSPARENT   =  1
oPAQUE        :: BackgroundMode
oPAQUE        =  2

{-# LINE 297 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type HatchStyle   = INT
hS_HORIZONTAL   :: HatchStyle
hS_HORIZONTAL   =  0
hS_VERTICAL     :: HatchStyle
hS_VERTICAL     =  1
hS_FDIAGONAL    :: HatchStyle
hS_FDIAGONAL    =  2
hS_BDIAGONAL    :: HatchStyle
hS_BDIAGONAL    =  3
hS_CROSS        :: HatchStyle
hS_CROSS        =  4
hS_DIAGCROSS    :: HatchStyle
hS_DIAGCROSS    =  5

{-# LINE 309 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type StretchBltMode    = INT
bLACKONWHITE         :: StretchBltMode
bLACKONWHITE         =  1
wHITEONBLACK         :: StretchBltMode
wHITEONBLACK         =  2
cOLORONCOLOR         :: StretchBltMode
cOLORONCOLOR         =  3
hALFTONE             :: StretchBltMode
hALFTONE             =  4
sTRETCH_ANDSCANS     :: StretchBltMode
sTRETCH_ANDSCANS     =  1
sTRETCH_ORSCANS      :: StretchBltMode
sTRETCH_ORSCANS      =  2
sTRETCH_DELETESCANS  :: StretchBltMode
sTRETCH_DELETESCANS  =  3

{-# LINE 322 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type TextAlignment = UINT
tA_NOUPDATECP    :: TextAlignment
tA_NOUPDATECP    =  0
tA_UPDATECP      :: TextAlignment
tA_UPDATECP      =  1
tA_LEFT          :: TextAlignment
tA_LEFT          =  0
tA_RIGHT         :: TextAlignment
tA_RIGHT         =  2
tA_CENTER        :: TextAlignment
tA_CENTER        =  6
tA_TOP           :: TextAlignment
tA_TOP           =  0
tA_BOTTOM        :: TextAlignment
tA_BOTTOM        =  8
tA_BASELINE      :: TextAlignment
tA_BASELINE      =  24

{-# LINE 336 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type ClippingMode  = INT
rGN_AND          :: ClippingMode
rGN_AND          =  1
rGN_OR           :: ClippingMode
rGN_OR           =  2
rGN_XOR          :: ClippingMode
rGN_XOR          =  3
rGN_DIFF         :: ClippingMode
rGN_DIFF         =  4
rGN_COPY         :: ClippingMode
rGN_COPY         =  5

{-# LINE 347 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


type RegionType    = INT
eRROR            :: RegionType
eRROR            =  0
nULLREGION       :: RegionType
nULLREGION       =  1
sIMPLEREGION     :: RegionType
sIMPLEREGION     =  2
cOMPLEXREGION    :: RegionType
cOMPLEXREGION    =  3

{-# LINE 357 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

gDI_ERROR  :: Num a => a
gDI_ERROR   = 4294967295
{-# LINE 360 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

cLR_INVALID :: COLORREF
cLR_INVALID = 4294967295
{-# LINE 363 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------


oBJ_PEN          :: UINT
oBJ_PEN          =  1
oBJ_BRUSH        :: UINT
oBJ_BRUSH        =  2
oBJ_DC           :: UINT
oBJ_DC           =  3
oBJ_METADC       :: UINT
oBJ_METADC       =  4
oBJ_PAL          :: UINT
oBJ_PAL          =  5
oBJ_FONT         :: UINT
oBJ_FONT         =  6
oBJ_BITMAP       :: UINT
oBJ_BITMAP       =  7
oBJ_REGION       :: UINT
oBJ_REGION       =  8
oBJ_METAFILE     :: UINT
oBJ_METAFILE     =  9
oBJ_MEMDC        :: UINT
oBJ_MEMDC        =  10
oBJ_EXTPEN       :: UINT
oBJ_EXTPEN       =  11
oBJ_ENHMETADC    :: UINT
oBJ_ENHMETADC    =  12
oBJ_ENHMETAFILE  :: UINT
oBJ_ENHMETAFILE  =  13

{-# LINE 381 "libraries\\Win32\\Graphics\\Win32\\GDI\\Types.hsc" #-}

----------------------------------------------------------------

-- Miscellaneous primitives

----------------------------------------------------------------


-- Can't pass structs with current FFI, so use C wrappers


foreign import ccall unsafe "HsGDI.h"
  prim_ChildWindowFromPoint :: HWND -> Ptr POINT -> IO HWND
foreign import ccall unsafe "HsGDI.h"
  prim_ChildWindowFromPointEx :: HWND -> Ptr POINT -> DWORD -> IO HWND
foreign import ccall unsafe "HsGDI.h"
  prim_MenuItemFromPoint :: HWND -> HMENU -> Ptr POINT -> IO UINT

----------------------------------------------------------------

-- End

----------------------------------------------------------------