-- GENERATED by C->Haskell Compiler, version 0.13.13 (gtk2hs branch) "Bin IO", 27 May 2012 (Haskell)
-- Edit the ORIGINAL .chs file instead!


{-# LINE 1 "./System/Glib/Types.chs" #-}
{-# OPTIONS_HADDOCK hide #-}
-- -*-haskell-*-
--  GIMP Toolkit (GTK) Widget GObject
--
--  Author : Axel Simon
--
--  Created: 9 April 2001
--
--  Copyright (c) 2001 Axel Simon
--
--  This library is free software; you can redistribute it and/or
--  modify it under the terms of the GNU Lesser General Public
--  License as published by the Free Software Foundation; either
--  version 2.1 of the License, or (at your option) any later version.
--
--  This library is distributed in the hope that it will be useful,
--  but WITHOUT ANY WARRANTY; without even the implied warranty of
--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
--  Lesser General Public License for more details.
--
-- #hide

-- |
-- Maintainer  : gtk2hs-users@lists.sourceforge.net
-- Stability   : provisional
-- Portability : portable (depends on GHC)
--
-- Implements the base GObject class.
--
module System.Glib.Types (
  GObject(..),
  GObjectClass,
  mkGObject,
  unGObject,
  toGObject,
  unsafeCastGObject,
  castToGObject,
  objectUnref
  ) where

import System.Glib.FFI


{-# LINE 43 "./System/Glib/Types.chs" #-}

newtype GObject = GObject (ForeignPtr (GObject)) deriving (Eq)

mkGObject :: (ForeignPtr GObject -> GObject, FinalizerPtr a)
mkGObject = (ForeignPtr GObject -> GObject
GObject, FinalizerPtr a
forall a. FinalizerPtr a
objectUnref)
unGObject :: GObject -> ForeignPtr GObject
unGObject (GObject ForeignPtr GObject
o) = ForeignPtr GObject
o

class GObjectClass o where
  -- | Safe upcast.
  toGObject         :: o -> GObject
  -- | Unchecked downcast.
  unsafeCastGObject :: GObject -> o

instance GObjectClass GObject where
  toGObject :: GObject -> GObject
toGObject = GObject -> GObject
forall a. a -> a
id
  unsafeCastGObject :: GObject -> GObject
unsafeCastGObject = GObject -> GObject
forall a. a -> a
id

castToGObject :: GObjectClass obj => obj -> obj
castToGObject :: forall obj. GObjectClass obj => obj -> obj
castToGObject = obj -> obj
forall a. a -> a
id

-- | Decrease the reference counter of an object
--
foreign import ccall unsafe "&g_object_unref"
  objectUnref :: FinalizerPtr a