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|
-- -*-haskell-*-
-- GIMP Toolkit (GTK) Widget HScrollbar
--
-- 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)
--
-- A horizontal scrollbar
--
module Graphics.UI.Gtk.Scrolling.HScrollbar (
-- * Detail
--
-- | The 'HScrollbar' widget is a widget arranged horizontally creating a
-- scrollbar. See 'Scrollbar' for details on scrollbars. An 'Adjustment'
-- may be added to handle the adjustment of the scrollbar using
-- 'hScrollbarNew' or you can use 'hScrollbarNewDefaults' in
-- which case one will be created for you. See 'Adjustment' for details.
--
-- All interesting functions can be found in 'Range', from which it is derived.
-- * Class Hierarchy
-- |
-- @
-- | 'GObject'
-- | +----'Object'
-- | +----'Widget'
-- | +----'Range'
-- | +----'Scrollbar'
-- | +----HScrollbar
-- @
-- * Types
HScrollbar,
HScrollbarClass,
castToHScrollbar, gTypeHScrollbar,
toHScrollbar,
-- * Constructors
hScrollbarNew,
hScrollbarNewDefaults
) 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 horizontal scrollbar.
--
hScrollbarNew ::
Adjustment -- ^ @adjustment@ - the 'Adjustment' to use.
-> IO HScrollbar
hScrollbarNew adjustment =
makeNewObject mkHScrollbar $
liftM (castPtr :: Ptr Widget -> Ptr HScrollbar) $
{# call unsafe hscrollbar_new #}
adjustment
-- | Create a new HScrollbar without specifying an existing 'Adjustment'. A
-- new one will be created instead.
--
hScrollbarNewDefaults :: IO HScrollbar
hScrollbarNewDefaults = hScrollbarNew (Adjustment nullForeignPtr)
|
