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

The 'GI.Pango.Structs.EngineScriptInfo.EngineScriptInfo' structure contains
information about how the shaper covers a particular script.
-}

module GI.Pango.Structs.EngineScriptInfo
    ( 

-- * Exported types
    EngineScriptInfo(..)                    ,
    newZeroEngineScriptInfo                 ,
    noEngineScriptInfo                      ,


 -- * Properties
-- ** langs #attr:langs#
    clearEngineScriptInfoLangs              ,
    engineScriptInfo_langs                  ,
    getEngineScriptInfoLangs                ,
    setEngineScriptInfoLangs                ,


-- ** script #attr:script#
    engineScriptInfo_script                 ,
    getEngineScriptInfoScript               ,
    setEngineScriptInfoScript               ,




    ) 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.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
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 {-# SOURCE #-} qualified GI.Pango.Enums as Pango.Enums

newtype EngineScriptInfo = EngineScriptInfo (ManagedPtr EngineScriptInfo)
instance WrappedPtr EngineScriptInfo where
    wrappedPtrCalloc = callocBytes 16
    wrappedPtrCopy = \p -> withManagedPtr p (copyBytes 16 >=> wrapPtr EngineScriptInfo)
    wrappedPtrFree = Just ptr_to_g_free

-- | Construct a `EngineScriptInfo` struct initialized to zero.
newZeroEngineScriptInfo :: MonadIO m => m EngineScriptInfo
newZeroEngineScriptInfo = liftIO $ wrappedPtrCalloc >>= wrapPtr EngineScriptInfo

instance tag ~ 'AttrSet => Constructible EngineScriptInfo tag where
    new _ attrs = do
        o <- newZeroEngineScriptInfo
        GI.Attributes.set o attrs
        return o


noEngineScriptInfo :: Maybe EngineScriptInfo
noEngineScriptInfo = Nothing

getEngineScriptInfoScript :: MonadIO m => EngineScriptInfo -> m Pango.Enums.Script
getEngineScriptInfoScript s = liftIO $ withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO CUInt
    let val' = (toEnum . fromIntegral) val
    return val'

setEngineScriptInfoScript :: MonadIO m => EngineScriptInfo -> Pango.Enums.Script -> m ()
setEngineScriptInfoScript s val = liftIO $ withManagedPtr s $ \ptr -> do
    let val' = (fromIntegral . fromEnum) val
    poke (ptr `plusPtr` 0) (val' :: CUInt)

data EngineScriptInfoScriptFieldInfo
instance AttrInfo EngineScriptInfoScriptFieldInfo where
    type AttrAllowedOps EngineScriptInfoScriptFieldInfo = '[ 'AttrSet, 'AttrGet]
    type AttrSetTypeConstraint EngineScriptInfoScriptFieldInfo = (~) Pango.Enums.Script
    type AttrBaseTypeConstraint EngineScriptInfoScriptFieldInfo = (~) EngineScriptInfo
    type AttrGetType EngineScriptInfoScriptFieldInfo = Pango.Enums.Script
    type AttrLabel EngineScriptInfoScriptFieldInfo = "script"
    type AttrOrigin EngineScriptInfoScriptFieldInfo = EngineScriptInfo
    attrGet _ = getEngineScriptInfoScript
    attrSet _ = setEngineScriptInfoScript
    attrConstruct = undefined
    attrClear _ = undefined

engineScriptInfo_script :: AttrLabelProxy "script"
engineScriptInfo_script = AttrLabelProxy


getEngineScriptInfoLangs :: MonadIO m => EngineScriptInfo -> m (Maybe T.Text)
getEngineScriptInfoLangs s = liftIO $ withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 8) :: IO CString
    result <- SP.convertIfNonNull val $ \val' -> do
        val'' <- cstringToText val'
        return val''
    return result

setEngineScriptInfoLangs :: MonadIO m => EngineScriptInfo -> CString -> m ()
setEngineScriptInfoLangs s val = liftIO $ withManagedPtr s $ \ptr -> do
    poke (ptr `plusPtr` 8) (val :: CString)

clearEngineScriptInfoLangs :: MonadIO m => EngineScriptInfo -> m ()
clearEngineScriptInfoLangs s = liftIO $ withManagedPtr s $ \ptr -> do
    poke (ptr `plusPtr` 8) (FP.nullPtr :: CString)

data EngineScriptInfoLangsFieldInfo
instance AttrInfo EngineScriptInfoLangsFieldInfo where
    type AttrAllowedOps EngineScriptInfoLangsFieldInfo = '[ 'AttrSet, 'AttrGet, 'AttrClear]
    type AttrSetTypeConstraint EngineScriptInfoLangsFieldInfo = (~) CString
    type AttrBaseTypeConstraint EngineScriptInfoLangsFieldInfo = (~) EngineScriptInfo
    type AttrGetType EngineScriptInfoLangsFieldInfo = Maybe T.Text
    type AttrLabel EngineScriptInfoLangsFieldInfo = "langs"
    type AttrOrigin EngineScriptInfoLangsFieldInfo = EngineScriptInfo
    attrGet _ = getEngineScriptInfoLangs
    attrSet _ = setEngineScriptInfoLangs
    attrConstruct = undefined
    attrClear _ = clearEngineScriptInfoLangs

engineScriptInfo_langs :: AttrLabelProxy "langs"
engineScriptInfo_langs = AttrLabelProxy



instance O.HasAttributeList EngineScriptInfo
type instance O.AttributeList EngineScriptInfo = EngineScriptInfoAttributeList
type EngineScriptInfoAttributeList = ('[ '("script", EngineScriptInfoScriptFieldInfo), '("langs", EngineScriptInfoLangsFieldInfo)] :: [(Symbol, *)])

type family ResolveEngineScriptInfoMethod (t :: Symbol) (o :: *) :: * where
    ResolveEngineScriptInfoMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolveEngineScriptInfoMethod t EngineScriptInfo, O.MethodInfo info EngineScriptInfo p) => O.IsLabelProxy t (EngineScriptInfo -> p) where
    fromLabelProxy _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)

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