dear-imgui-raw-implot-1.0.0: src/DearImGui/Raw/ImPlot/Point.hsc

{-# LANGUAGE CApiFFI #-}
{-# LANGUAGE PatternSynonyms #-}

-- This file was generated by dear-bindings-ffi. Do not edit by hand.

module DearImGui.Raw.ImPlot.Point
  ( Point (..)
  , destroy
  , init
  , withDefault
  ) where

import Control.Exception (bracket_)
import Foreign.Marshal.Alloc (alloca)
import Foreign.Ptr (Ptr, plusPtr)
import Foreign.Storable (Storable (..))
import GHC.Records (HasField (..))
import Prelude hiding (init)

#include "dcimgui_implot.h"

-- structs (opaque)

-- by-value
data {-# CTYPE "dcimgui_implot.h" "ImPlotPoint" #-} Point = Point
  { x :: Double
  , y :: Double
  }
  deriving (Eq, Show)
instance Storable Point where
  sizeOf _    = #{size ImPlotPoint}
  alignment _ = #{alignment ImPlotPoint}
  peek p = Point <$> #{peek ImPlotPoint, x} p <*> #{peek ImPlotPoint, y} p
  poke p v = do
    #{poke ImPlotPoint, x} p v.x
    #{poke ImPlotPoint, y} p v.y

instance HasField "x" (Ptr Point) (Ptr Double) where
  getField = #{ptr ImPlotPoint, x}

instance HasField "y" (Ptr Point) (Ptr Double) where
  getField = #{ptr ImPlotPoint, y}

foreign import capi unsafe "DearImGuiWrappers.h ImPlotPoint_Init_wrap"
  init
    :: Ptr Point
    -> IO ()

foreign import capi unsafe "DearImGuiWrappers.h ImPlotPoint_Destroy_wrap"
  destroy
    :: Ptr Point
    -> IO ()

withDefault :: (Ptr Point -> IO a) -> IO a
withDefault k = alloca $ \p -> bracket_ (init p) (destroy p) (k p)