{-# LANGUAGE ScopedTypeVariables #-}

{-# LINE 2 "./Graphics/UI/Gtk/Misc/IMContextSimple.chs" #-}
-- -*-haskell-*-
-- GIMP Toolkit (GTK) Widget IMContextSimple
--
-- Author : Andy Stewart
--
-- Created: 24 Mar 2010
--
-- Copyright (C) 2010 Andy Stewart
--
-- 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)
--
-- An input method context supporting table-based input methods
--
module Graphics.UI.Gtk.Misc.IMContextSimple (

-- * Class Hierarchy
--
-- |
-- @
-- | 'GObject'
-- | +----'IMContext'
-- | +----IMContextSimple
-- @

-- * Types
  IMContextSimple,
  IMContextSimpleClass,
  castToIMContextSimple,
  toIMContextSimple,

-- * Constructors
  imContextSimpleNew,

-- * Methods
  imContextSimpleAddTable,
  ) where

import Control.Monad (liftM)
import Data.Map (Map)

import System.Glib.FFI
import System.Glib.UTFString
import Graphics.UI.Gtk.Types
{-# LINE 58 "./Graphics/UI/Gtk/Misc/IMContextSimple.chs" #-}


{-# LINE 60 "./Graphics/UI/Gtk/Misc/IMContextSimple.chs" #-}

import qualified Data.Map as M

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

-- | Creates a new 'IMContextSimple'.
--
imContextSimpleNew :: IO IMContextSimple
imContextSimpleNew =
  wrapNewGObject mkIMContextSimple $
  liftM castPtr gtk_im_context_simple_new
{-# LINE 72 "./Graphics/UI/Gtk/Misc/IMContextSimple.chs" #-}

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

-- | Adds an additional table to search to the input context. Each row of the table consists of
-- @maxSeqLen@ key symbols followed by two 'Int' interpreted as the high and low words of a gunicode
-- value. Tables are searched starting from the last added.
--
-- The table must be sorted in dictionary order on the numeric value of the key symbol fields. (Values
-- beyond the length of the sequence should be zero.)
--
imContextSimpleAddTable :: IMContextSimpleClass self => self
 -> Map String String -- ^ @data@ - the table
 -> Int -- ^ @maxSeqLen@ - Maximum length of a sequence in the table
                 -- (cannot be greater than 'MaxComposeLen')
 -> Int -- ^ @nSeqs@ - number of sequences in the table
 -> IO ()
imContextSimpleAddTable self table maxSeqLen nSeqs = do
  tableList <- mapM (\(x,y) -> do
                       nx <- newUTFString x
                       ny <- newUTFString y
                       return (nx, ny)) (M.toList table)
  withArray (concatMap (\(x,y) -> [x, y]) tableList) $ \(tablePtr :: Ptr CString) ->
      (\(IMContextSimple arg1) arg2 arg3 arg4 -> withForeignPtr arg1 $ \argPtr1 ->gtk_im_context_simple_add_table argPtr1 arg2 arg3 arg4)
{-# LINE 96 "./Graphics/UI/Gtk/Misc/IMContextSimple.chs" #-}
        (toIMContextSimple self)
        (castPtr tablePtr)
        (fromIntegral maxSeqLen)
        (fromIntegral nSeqs)

foreign import ccall safe "gtk_im_context_simple_new"
  gtk_im_context_simple_new :: (IO (Ptr IMContext))

foreign import ccall safe "gtk_im_context_simple_add_table"
  gtk_im_context_simple_add_table :: ((Ptr IMContextSimple) -> ((Ptr CUShort) -> (CInt -> (CInt -> (IO ())))))