File: VBox.chs

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-- -*-haskell-*-
--  GIMP Toolkit (GTK) Widget VBox
--
--  Author : Axel Simon
--
--  Created: 15 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)
--
-- A vertical container box
--
module Graphics.UI.Gtk.Layout.VBox (
-- * Detail
-- 
-- | 'VBox' is a container that organizes child widgets into a single column.
--
-- Use the 'Box' packing interface to determine the arrangement, spacing,
-- height, and alignment of 'VBox' children.
--
-- All children are allocated the same width.

-- * Class Hierarchy
-- |
-- @
-- |  'GObject'
-- |   +----'Object'
-- |         +----'Widget'
-- |               +----'Container'
-- |                     +----'Box'
-- |                           +----VBox
-- |                                 +----'ColorSelection'
-- |                                 +----'FileChooserWidget'
-- |                                 +----'FontSelection'
-- @

-- * Types
  VBox,
  VBoxClass,
  castToVBox, gTypeVBox,
  toVBox,

-- * Constructors
  vBoxNew,
  ) where

import Control.Monad	(liftM)

import System.Glib.FFI
import Graphics.UI.Gtk.Abstract.Object	(makeNewObject)
{#import Graphics.UI.Gtk.Types#}

{# context lib="gtk" prefix="gtk" #}

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

-- | Creates a new 'VBox'.
--
vBoxNew :: 
    Bool    -- ^ @homogeneous@ - @True@ if all children are to be given equal
            -- space allotments.
 -> Int     -- ^ @spacing@ - the number of pixels to place by default between
            -- children.
 -> IO VBox
vBoxNew homogeneous spacing =
  makeNewObject mkVBox $
  liftM (castPtr :: Ptr Widget -> Ptr VBox) $
  {# call unsafe vbox_new #}
    (fromBool homogeneous)
    (fromIntegral spacing)