gi-poppler-0.18.17: GI/Poppler/Structs/Color.hs
{- |
Copyright : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License : LGPL-2.1
Maintainer : Iñaki García Etxebarria (inaki@blueleaf.cc)
A 'GI.Poppler.Structs.Color.Color' describes a RGB color. Color components
are values between 0 and 65535
-}
#define ENABLE_OVERLOADING (MIN_VERSION_haskell_gi_overloading(1,0,0) \
&& !defined(__HADDOCK_VERSION__))
module GI.Poppler.Structs.Color
(
-- * Exported types
Color(..) ,
newZeroColor ,
noColor ,
-- * Methods
-- ** copy #method:copy#
#if ENABLE_OVERLOADING
ColorCopyMethodInfo ,
#endif
colorCopy ,
-- ** free #method:free#
#if ENABLE_OVERLOADING
ColorFreeMethodInfo ,
#endif
colorFree ,
-- ** new #method:new#
colorNew ,
-- * Properties
-- ** blue #attr:blue#
{- | the blue component of color
-}
#if ENABLE_OVERLOADING
color_blue ,
#endif
getColorBlue ,
setColorBlue ,
-- ** green #attr:green#
{- | the green component of color
-}
#if ENABLE_OVERLOADING
color_green ,
#endif
getColorGreen ,
setColorGreen ,
-- ** red #attr:red#
{- | the red component of color
-}
#if ENABLE_OVERLOADING
color_red ,
#endif
getColorRed ,
setColorRed ,
) where
import Data.GI.Base.ShortPrelude
import qualified Data.GI.Base.ShortPrelude as SP
import qualified Data.GI.Base.Overloading as O
import qualified Prelude as P
import qualified Data.GI.Base.Attributes as GI.Attributes
import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GClosure as B.GClosure
import qualified Data.GI.Base.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GValue as B.GValue
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
import qualified Data.GI.Base.Properties as B.Properties
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP
import qualified GHC.OverloadedLabels as OL
-- | Memory-managed wrapper type.
newtype Color = Color (ManagedPtr Color)
foreign import ccall "poppler_color_get_type" c_poppler_color_get_type ::
IO GType
instance BoxedObject Color where
boxedType _ = c_poppler_color_get_type
-- | Construct a `Color` struct initialized to zero.
newZeroColor :: MonadIO m => m Color
newZeroColor = liftIO $ callocBoxedBytes 6 >>= wrapBoxed Color
instance tag ~ 'AttrSet => Constructible Color tag where
new _ attrs = do
o <- newZeroColor
GI.Attributes.set o attrs
return o
-- | A convenience alias for `Nothing` :: `Maybe` `Color`.
noColor :: Maybe Color
noColor = Nothing
{- |
Get the value of the “@red@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.get' color #red
@
-}
getColorRed :: MonadIO m => Color -> m Word16
getColorRed s = liftIO $ withManagedPtr s $ \ptr -> do
val <- peek (ptr `plusPtr` 0) :: IO Word16
return val
{- |
Set the value of the “@red@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.set' color [ #red 'Data.GI.Base.Attributes.:=' value ]
@
-}
setColorRed :: MonadIO m => Color -> Word16 -> m ()
setColorRed s val = liftIO $ withManagedPtr s $ \ptr -> do
poke (ptr `plusPtr` 0) (val :: Word16)
#if ENABLE_OVERLOADING
data ColorRedFieldInfo
instance AttrInfo ColorRedFieldInfo where
type AttrAllowedOps ColorRedFieldInfo = '[ 'AttrSet, 'AttrGet]
type AttrSetTypeConstraint ColorRedFieldInfo = (~) Word16
type AttrBaseTypeConstraint ColorRedFieldInfo = (~) Color
type AttrGetType ColorRedFieldInfo = Word16
type AttrLabel ColorRedFieldInfo = "red"
type AttrOrigin ColorRedFieldInfo = Color
attrGet _ = getColorRed
attrSet _ = setColorRed
attrConstruct = undefined
attrClear _ = undefined
color_red :: AttrLabelProxy "red"
color_red = AttrLabelProxy
#endif
{- |
Get the value of the “@green@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.get' color #green
@
-}
getColorGreen :: MonadIO m => Color -> m Word16
getColorGreen s = liftIO $ withManagedPtr s $ \ptr -> do
val <- peek (ptr `plusPtr` 2) :: IO Word16
return val
{- |
Set the value of the “@green@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.set' color [ #green 'Data.GI.Base.Attributes.:=' value ]
@
-}
setColorGreen :: MonadIO m => Color -> Word16 -> m ()
setColorGreen s val = liftIO $ withManagedPtr s $ \ptr -> do
poke (ptr `plusPtr` 2) (val :: Word16)
#if ENABLE_OVERLOADING
data ColorGreenFieldInfo
instance AttrInfo ColorGreenFieldInfo where
type AttrAllowedOps ColorGreenFieldInfo = '[ 'AttrSet, 'AttrGet]
type AttrSetTypeConstraint ColorGreenFieldInfo = (~) Word16
type AttrBaseTypeConstraint ColorGreenFieldInfo = (~) Color
type AttrGetType ColorGreenFieldInfo = Word16
type AttrLabel ColorGreenFieldInfo = "green"
type AttrOrigin ColorGreenFieldInfo = Color
attrGet _ = getColorGreen
attrSet _ = setColorGreen
attrConstruct = undefined
attrClear _ = undefined
color_green :: AttrLabelProxy "green"
color_green = AttrLabelProxy
#endif
{- |
Get the value of the “@blue@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.get' color #blue
@
-}
getColorBlue :: MonadIO m => Color -> m Word16
getColorBlue s = liftIO $ withManagedPtr s $ \ptr -> do
val <- peek (ptr `plusPtr` 4) :: IO Word16
return val
{- |
Set the value of the “@blue@” field.
When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
@
'Data.GI.Base.Attributes.set' color [ #blue 'Data.GI.Base.Attributes.:=' value ]
@
-}
setColorBlue :: MonadIO m => Color -> Word16 -> m ()
setColorBlue s val = liftIO $ withManagedPtr s $ \ptr -> do
poke (ptr `plusPtr` 4) (val :: Word16)
#if ENABLE_OVERLOADING
data ColorBlueFieldInfo
instance AttrInfo ColorBlueFieldInfo where
type AttrAllowedOps ColorBlueFieldInfo = '[ 'AttrSet, 'AttrGet]
type AttrSetTypeConstraint ColorBlueFieldInfo = (~) Word16
type AttrBaseTypeConstraint ColorBlueFieldInfo = (~) Color
type AttrGetType ColorBlueFieldInfo = Word16
type AttrLabel ColorBlueFieldInfo = "blue"
type AttrOrigin ColorBlueFieldInfo = Color
attrGet _ = getColorBlue
attrSet _ = setColorBlue
attrConstruct = undefined
attrClear _ = undefined
color_blue :: AttrLabelProxy "blue"
color_blue = AttrLabelProxy
#endif
#if ENABLE_OVERLOADING
instance O.HasAttributeList Color
type instance O.AttributeList Color = ColorAttributeList
type ColorAttributeList = ('[ '("red", ColorRedFieldInfo), '("green", ColorGreenFieldInfo), '("blue", ColorBlueFieldInfo)] :: [(Symbol, *)])
#endif
-- method Color::new
-- method type : Constructor
-- Args : []
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Poppler", name = "Color"}))
-- throws : False
-- Skip return : False
foreign import ccall "poppler_color_new" poppler_color_new ::
IO (Ptr Color)
{- |
Creates a new 'GI.Poppler.Structs.Color.Color'
-}
colorNew ::
(B.CallStack.HasCallStack, MonadIO m) =>
m Color
{- ^ __Returns:__ a new 'GI.Poppler.Structs.Color.Color', use 'GI.Poppler.Structs.Color.colorFree' to free it -}
colorNew = liftIO $ do
result <- poppler_color_new
checkUnexpectedReturnNULL "colorNew" result
result' <- (wrapBoxed Color) result
return result'
#if ENABLE_OVERLOADING
#endif
-- method Color::copy
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "color", argType = TInterface (Name {namespace = "Poppler", name = "Color"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PopplerColor to copy", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Poppler", name = "Color"}))
-- throws : False
-- Skip return : False
foreign import ccall "poppler_color_copy" poppler_color_copy ::
Ptr Color -> -- color : TInterface (Name {namespace = "Poppler", name = "Color"})
IO (Ptr Color)
{- |
Creates a copy of /@color@/
-}
colorCopy ::
(B.CallStack.HasCallStack, MonadIO m) =>
Color
{- ^ /@color@/: a 'GI.Poppler.Structs.Color.Color' to copy -}
-> m Color
{- ^ __Returns:__ a new allocated copy of /@color@/ -}
colorCopy color = liftIO $ do
color' <- unsafeManagedPtrGetPtr color
result <- poppler_color_copy color'
checkUnexpectedReturnNULL "colorCopy" result
result' <- (wrapBoxed Color) result
touchManagedPtr color
return result'
#if ENABLE_OVERLOADING
data ColorCopyMethodInfo
instance (signature ~ (m Color), MonadIO m) => O.MethodInfo ColorCopyMethodInfo Color signature where
overloadedMethod _ = colorCopy
#endif
-- method Color::free
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "color", argType = TInterface (Name {namespace = "Poppler", name = "Color"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PopplerColor", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False
foreign import ccall "poppler_color_free" poppler_color_free ::
Ptr Color -> -- color : TInterface (Name {namespace = "Poppler", name = "Color"})
IO ()
{- |
Frees the given 'GI.Poppler.Structs.Color.Color'
-}
colorFree ::
(B.CallStack.HasCallStack, MonadIO m) =>
Color
{- ^ /@color@/: a 'GI.Poppler.Structs.Color.Color' -}
-> m ()
colorFree color = liftIO $ do
color' <- unsafeManagedPtrGetPtr color
poppler_color_free color'
touchManagedPtr color
return ()
#if ENABLE_OVERLOADING
data ColorFreeMethodInfo
instance (signature ~ (m ()), MonadIO m) => O.MethodInfo ColorFreeMethodInfo Color signature where
overloadedMethod _ = colorFree
#endif
#if ENABLE_OVERLOADING
type family ResolveColorMethod (t :: Symbol) (o :: *) :: * where
ResolveColorMethod "copy" o = ColorCopyMethodInfo
ResolveColorMethod "free" o = ColorFreeMethodInfo
ResolveColorMethod l o = O.MethodResolutionFailed l o
instance (info ~ ResolveColorMethod t Color, O.MethodInfo info Color p) => OL.IsLabel t (Color -> p) where
#if MIN_VERSION_base(4,10,0)
fromLabel = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#else
fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#endif
#endif