{-# LINE 2 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}
-- -*-haskell-*-
-- GIMP Toolkit (GTK) Widget Arrow
--
-- Author : Axel Simon
--
-- Created: 23 May 2001
--
-- Copyright (C) 1999-2005 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.
--
-- |
-- Maintainer : gtk2hs-users@lists.sourceforge.net
-- Stability : provisional
-- Portability : portable (depends on GHC)
--
-- Displays an arrow
--
module Graphics.UI.Gtk.Misc.Arrow (
-- * Detail
--
-- | 'Arrow' should be used to draw simple arrows that need to point in one of
-- the four cardinal directions (up, down, left, or right). The style of the
-- arrow can be one of shadow in, shadow out, etched in, or etched out. Note
-- that these directions and style types may be ammended in versions of Gtk to
-- come.
--
-- 'Arrow' will fill any space alloted to it, but since it is inherited from
-- 'Misc', it can be padded and\/or aligned, to fill exactly the space the
-- programmer desires.
--
-- Arrows are created with a call to 'arrowNew'. The direction or style of
-- an arrow can be changed after creation by using 'arrowSet'.

-- * Class Hierarchy
-- |
-- @
-- | 'GObject'
-- | +----'Object'
-- | +----'Widget'
-- | +----'Misc'
-- | +----Arrow
-- @

-- * Types
  Arrow,
  ArrowClass,
  castToArrow, gTypeArrow,
  toArrow,
  ArrowType(..),
  ShadowType(..),

-- * Constructors
  arrowNew,

-- * Methods
  arrowSet,

-- * Attributes
  arrowArrowType,
  arrowShadowType,
  ) where

import Control.Monad (liftM)

import System.Glib.FFI
import System.Glib.Attributes
import System.Glib.Properties
import Graphics.UI.Gtk.Abstract.Object (makeNewObject)
import Graphics.UI.Gtk.Types
{-# LINE 80 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}
import Graphics.UI.Gtk.General.Enums (ArrowType(..), ShadowType(..))


{-# LINE 83 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}

--------------------
-- Constructors

-- | Creates a new arrow widget.
--
arrowNew :: ArrowType -> ShadowType -> IO Arrow
arrowNew :: ArrowType -> ShadowType -> IO Arrow
arrowNew ArrowType
arrowType ShadowType
shadowType =
  (ForeignPtr Arrow -> Arrow, FinalizerPtr Arrow)
-> IO (Ptr Arrow) -> IO Arrow
forall obj.
ObjectClass obj =>
(ForeignPtr obj -> obj, FinalizerPtr obj) -> IO (Ptr obj) -> IO obj
makeNewObject (ForeignPtr Arrow -> Arrow, FinalizerPtr Arrow)
forall {a}. (ForeignPtr Arrow -> Arrow, FinalizerPtr a)
mkArrow (IO (Ptr Arrow) -> IO Arrow) -> IO (Ptr Arrow) -> IO Arrow
forall a b. (a -> b) -> a -> b
$
  (Ptr Widget -> Ptr Arrow) -> IO (Ptr Widget) -> IO (Ptr Arrow)
forall (m :: * -> *) a1 r. Monad m => (a1 -> r) -> m a1 -> m r
liftM (Ptr Widget -> Ptr Arrow
forall a b. Ptr a -> Ptr b
castPtr :: Ptr Widget -> Ptr Arrow) (IO (Ptr Widget) -> IO (Ptr Arrow))
-> IO (Ptr Widget) -> IO (Ptr Arrow)
forall a b. (a -> b) -> a -> b
$
  CInt -> CInt -> IO (Ptr Widget)
gtk_arrow_new
{-# LINE 94 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}
    ((fromIntegral . fromEnum) arrowType)
    ((Int -> CInt
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> CInt) -> (ShadowType -> Int) -> ShadowType -> CInt
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ShadowType -> Int
forall a. Enum a => a -> Int
fromEnum) ShadowType
shadowType)

--------------------
-- Methods

-- | Sets the direction and style of the 'Arrow'.
--
arrowSet :: ArrowClass self => self -> ArrowType -> ShadowType -> IO ()
arrowSet :: forall self.
ArrowClass self =>
self -> ArrowType -> ShadowType -> IO ()
arrowSet self
self ArrowType
arrowType ShadowType
shadowType =
  (\(Arrow ForeignPtr Arrow
arg1) CInt
arg2 CInt
arg3 -> ForeignPtr Arrow -> (Ptr Arrow -> IO ()) -> IO ()
forall a b. ForeignPtr a -> (Ptr a -> IO b) -> IO b
withForeignPtr ForeignPtr Arrow
arg1 ((Ptr Arrow -> IO ()) -> IO ()) -> (Ptr Arrow -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \Ptr Arrow
argPtr1 ->Ptr Arrow -> CInt -> CInt -> IO ()
gtk_arrow_set Ptr Arrow
argPtr1 CInt
arg2 CInt
arg3)
{-# LINE 105 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}
    (toArrow self)
    ((Int -> CInt
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> CInt) -> (ArrowType -> Int) -> ArrowType -> CInt
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ArrowType -> Int
forall a. Enum a => a -> Int
fromEnum) ArrowType
arrowType)
    ((Int -> CInt
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> CInt) -> (ShadowType -> Int) -> ShadowType -> CInt
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ShadowType -> Int
forall a. Enum a => a -> Int
fromEnum) ShadowType
shadowType)

--------------------
-- Attributes

-- | The direction the arrow should point.
--
-- Default value: 'ArrowRight'
--
arrowArrowType :: ArrowClass self => Attr self ArrowType
arrowArrowType :: forall self. ArrowClass self => Attr self ArrowType
arrowArrowType = String -> GType -> Attr self ArrowType
forall gobj enum.
(GObjectClass gobj, Enum enum) =>
String -> GType -> Attr gobj enum
newAttrFromEnumProperty String
"arrow-type"
  GType
gtk_arrow_type_get_type
{-# LINE 119 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}

-- | Appearance of the shadow surrounding the arrow.
--
-- Default value: 'ShadowOut'
--
arrowShadowType :: ArrowClass self => Attr self ShadowType
arrowShadowType :: forall self. ArrowClass self => Attr self ShadowType
arrowShadowType = String -> GType -> Attr self ShadowType
forall gobj enum.
(GObjectClass gobj, Enum enum) =>
String -> GType -> Attr gobj enum
newAttrFromEnumProperty String
"shadow-type"
  GType
gtk_shadow_type_get_type
{-# LINE 127 "./Graphics/UI/Gtk/Misc/Arrow.chs" #-}

foreign import ccall unsafe "gtk_arrow_new"
  gtk_arrow_new :: (CInt -> (CInt -> (IO (Ptr Widget))))

foreign import ccall safe "gtk_arrow_set"
  gtk_arrow_set :: ((Ptr Arrow) -> (CInt -> (CInt -> (IO ()))))

foreign import ccall unsafe "gtk_arrow_type_get_type"
  gtk_arrow_type_get_type :: CUInt

foreign import ccall unsafe "gtk_shadow_type_get_type"
  gtk_shadow_type_get_type :: CUInt