{-# OPTIONS_HADDOCK hide #-}
-- This source file is part of HGamer3D
-- (A project to enable 3D game development in Haskell)
-- For the latest info, see http://www.hgamer3d.org
--
-- (c) 2011-2014 Peter Althainz
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.

-- GUI/Internal/Properties.hs

-- |Properties functionality of the GUI. Implementation module with internal data structures exposed. Public API in HGamer3D.GUI.

module HGamer3D.GUI.Internal.Properties
where


import GHC.Ptr
import Data.List.Split
import Control.Monad

import HGamer3D.Data
import HGamer3D.Util

import HGamer3D.GUI.Internal.Base
import HGamer3D.GUI.Internal.Widgets

import HGamer3D.Data.HG3DClass
import qualified HGamer3D.Bindings.CEGUI.ClassHG3DWindowStaticFunctions as WinStat
import qualified HGamer3D.Bindings.CEGUI.ClassWindow as Win
import qualified HGamer3D.Bindings.CEGUI.ClassUDim as Ud
import HGamer3D.GUI.Schema.GUIDim


type GUIButtonProperty b = GUIElementProperty GEButton b
type GUIEditTextProperty b = GUIElementProperty GEEditText b

type GUIHasSelectionProperty a b = GUIElementProperty a b
type GUIRadioButtonProperty b = GUIHasSelectionProperty GERadioButton b
type GUICheckBoxProperty b = GUIHasSelectionProperty GECheckBox b

type GUIHasValueProperty a b = GUIElementProperty a b
type GUISliderProperty b = GUIHasValueProperty GESlider b
type GUISpinnerProperty b = GUIHasValueProperty GESpinner b

type GUIListBoxProperty b = GUIElementProperty GEListBox b
type GUIComboBoxProperty b = GUIElementProperty GEComboBox b

_stringProp :: String -> GUIElementProperty a String
_stringProp name = ( 
  (flip getGuiElProperty) name, 
  (\pname guiel val -> setGuiElProperty guiel pname val) name
  )

_toBool :: String -> Bool
_toBool instr = case instr of
  "True" -> True
  "False" -> False
  _ -> False

_fromBool :: Bool -> String
_fromBool inb = case inb of
  True -> "True"
  False -> "False"
  _ -> "False"

_toFloat :: String -> Float
_toFloat = read

_fromFloat :: Float -> String
_fromFloat = show

_boolProp :: String -> GUIElementProperty a Bool
_boolProp name = ( 
  ((flip getGuiElProperty) name) >=> return . _toBool, 
  ((\pname guiel val -> setGuiElProperty guiel pname (_fromBool val)) name)
  )

_floatProp :: String -> GUIElementProperty a Float
_floatProp name = ( 
  ((flip getGuiElProperty) name) >=> return . _toFloat, 
  ((\pname guiel val -> setGuiElProperty guiel pname (_fromFloat val)) name)
  )

pText :: GUIElementProperty a String
pText = _stringProp "Text"

pDisabled :: GUIElementProperty a Bool
pDisabled = _boolProp "Disabled"

pVisible :: GUIElementProperty a Bool
pVisible = _boolProp "Visible"

pAlpha :: GUIElementProperty a Float
pAlpha = _floatProp "Alpha"

pAlwaysOnTop :: GUIElementProperty a Bool
pAlwaysOnTop = _boolProp "AlwaysOnTop"

pTooltip :: GUIElementProperty a String
pTooltip = _stringProp "Tooltip"

pFont :: GUIElementProperty a String
pFont = _stringProp "Font"

pX :: GUIElementProperty a GUIDim
pX = (getProp, setProp) where
    getProp (GUIElement window _) = do
      ud <- Win.getXPosition window
      scale <- WinStat.udScale ud
      offset <- WinStat.udOffset ud
      return $ GUIDim scale offset
    setProp (GUIElement window _) (GUIDim scale offset) = do
      ud <- Ud.new scale offset
      Win.setXPosition window ud
      Ud.delete ud
      return ()

pY :: GUIElementProperty a GUIDim
pY = (getProp, setProp) where
    getProp (GUIElement window _) = do
      ud <- Win.getYPosition window
      scale <- WinStat.udScale ud
      offset <- WinStat.udOffset ud
      return $ GUIDim scale offset
    setProp (GUIElement window _) (GUIDim scale offset) = do
      ud <- Ud.new scale offset
      Win.setYPosition window ud
      Ud.delete ud
      return ()

pWidth :: GUIElementProperty a GUIDim
pWidth = (getProp, setProp) where
    getProp (GUIElement window _) = do
      ud <- WinStat.getWindowWidth window
      scale <- WinStat.udScale ud
      offset <- WinStat.udOffset ud
      Ud.delete ud
      return $ GUIDim scale offset
    setProp (GUIElement window _) (GUIDim scale offset) = do
      ud <- Ud.new scale offset
      Win.setWidth window ud
      Ud.delete ud
      return ()

pHeight :: GUIElementProperty a GUIDim
pHeight = (getProp, setProp) where
    getProp (GUIElement window _) = do
      ud <- WinStat.getWindowHeight window
      scale <- WinStat.udScale ud
      offset <- WinStat.udOffset ud
      Ud.delete ud
      return $ GUIDim scale offset
    setProp (GUIElement window _) (GUIDim scale offset) = do
      ud <- Ud.new scale offset
      Win.setHeight window ud
      Ud.delete ud
      return ()

pMargin :: GUIElementProperty a GUIDim
pMargin = (getProp, setProp) where
    getProp (GUIElement window _) = do
      ud <- WinStat.getWindowMargin window
      scale <- WinStat.udScale ud
      offset <- WinStat.udOffset ud
      Ud.delete ud
      return $ GUIDim scale offset
    setProp (GUIElement window _) (GUIDim scale offset) = do
      ud <- Ud.new scale offset
      WinStat.setWindowMargin window ud
      Ud.delete ud
      return ()

pSelected :: GUIHasSelectionProperty a Bool
pSelected = _boolProp "Selected"

pValue :: GUIHasValueProperty a Float
pValue = _floatProp "CurrentValue"

pTextSelection :: GUIListBoxProperty [(String, Bool)]
pTextSelection = (listboxStatus, listboxInitialize)

pTextChoice :: GUIComboBoxProperty [String]
pTextChoice = (getProp, setProp) where
  setProp w strings = do
    comboboxRemoveAllText w
    mapM (comboboxAddText w) strings
    return ()
  getProp w = do
    comboboxStatus w