dear-imgui-raw-1.0.0: src/DearImGui/Raw/ImGuiSizeCallbackData.hsc

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

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

module DearImGui.Raw.ImGuiSizeCallbackData
  ( ImGuiSizeCallbackData (..)
  , destroy
  , init
  , withDefault
  ) where

import Control.Exception (bracket_)
import DearImGui.Raw.ImVec2 (ImVec2)
import Foreign.Marshal.Alloc (alloca)
import Foreign.Ptr (Ptr, plusPtr)
import Foreign.Storable (Storable (..))
import GHC.Records (HasField (..))
import Prelude hiding (init)

#include "dcimgui_nodefaultargfunctions.h"

-- structs (opaque)

data {-# CTYPE "dcimgui_nodefaultargfunctions.h" "ImGuiSizeCallbackData" #-} ImGuiSizeCallbackData = ImGuiSizeCallbackData
  { userData :: Ptr ()
  , pos :: ImVec2
  , currentSize :: ImVec2
  , desiredSize :: ImVec2
  }
  deriving (Eq, Show)
instance Storable ImGuiSizeCallbackData where
  sizeOf _    = #{size ImGuiSizeCallbackData}
  alignment _ = #{alignment ImGuiSizeCallbackData}
  peek p = ImGuiSizeCallbackData <$> #{peek ImGuiSizeCallbackData, UserData} p <*> #{peek ImGuiSizeCallbackData, Pos} p <*> #{peek ImGuiSizeCallbackData, CurrentSize} p <*> #{peek ImGuiSizeCallbackData, DesiredSize} p
  poke p v = do
    #{poke ImGuiSizeCallbackData, UserData} p v.userData
    #{poke ImGuiSizeCallbackData, Pos} p v.pos
    #{poke ImGuiSizeCallbackData, CurrentSize} p v.currentSize
    #{poke ImGuiSizeCallbackData, DesiredSize} p v.desiredSize

instance HasField "userData" (Ptr ImGuiSizeCallbackData) (Ptr (Ptr ())) where
  getField = #{ptr ImGuiSizeCallbackData, UserData}

instance HasField "pos" (Ptr ImGuiSizeCallbackData) (Ptr ImVec2) where
  getField = #{ptr ImGuiSizeCallbackData, Pos}

instance HasField "currentSize" (Ptr ImGuiSizeCallbackData) (Ptr ImVec2) where
  getField = #{ptr ImGuiSizeCallbackData, CurrentSize}

instance HasField "desiredSize" (Ptr ImGuiSizeCallbackData) (Ptr ImVec2) where
  getField = #{ptr ImGuiSizeCallbackData, DesiredSize}

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

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

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