module Main where
import qualified Graphics.UI.FLTK.LowLevel.FL as FL
import Graphics.UI.FLTK.LowLevel.Fl_Types
import Graphics.UI.FLTK.LowLevel.Fl_Enumerations
import Graphics.UI.FLTK.LowLevel.FLTKHS
import Data.IORef
import Control.Monad
import qualified Data.ByteString as B

sorceressWidth :: Int
sorceressWidth = 75

sorceressHeight :: Int
sorceressHeight = 75

sorceressBits :: B.ByteString
sorceressBits = B.pack [
   0xfc, 0x7e, 0x40, 0x20, 0x90, 0x00, 0x07, 0x80, 0x23, 0x00, 0x00, 0xc6,
   0xc1, 0x41, 0x98, 0xb8, 0x01, 0x07, 0x66, 0x00, 0x15, 0x9f, 0x03, 0x47,
   0x8c, 0xc6, 0xdc, 0x7b, 0xcc, 0x00, 0xb0, 0x71, 0x0e, 0x4d, 0x06, 0x66,
   0x73, 0x8e, 0x8f, 0x01, 0x18, 0xc4, 0x39, 0x4b, 0x02, 0x23, 0x0c, 0x04,
   0x1e, 0x03, 0x0c, 0x08, 0xc7, 0xef, 0x08, 0x30, 0x06, 0x07, 0x1c, 0x02,
   0x06, 0x30, 0x18, 0xae, 0xc8, 0x98, 0x3f, 0x78, 0x20, 0x06, 0x02, 0x20,
   0x60, 0xa0, 0xc4, 0x1d, 0xc0, 0xff, 0x41, 0x04, 0xfa, 0x63, 0x80, 0xa1,
   0xa4, 0x3d, 0x00, 0x84, 0xbf, 0x04, 0x0f, 0x06, 0xfc, 0xa1, 0x34, 0x6b,
   0x01, 0x1c, 0xc9, 0x05, 0x06, 0xc7, 0x06, 0xbe, 0x11, 0x1e, 0x43, 0x30,
   0x91, 0x05, 0xc3, 0x61, 0x02, 0x30, 0x1b, 0x30, 0xcc, 0x20, 0x11, 0x00,
   0xc1, 0x3c, 0x03, 0x20, 0x0a, 0x00, 0xe8, 0x60, 0x21, 0x00, 0x61, 0x1b,
   0xc1, 0x63, 0x08, 0xf0, 0xc6, 0xc7, 0x21, 0x03, 0xf8, 0x08, 0xe1, 0xcf,
   0x0a, 0xfc, 0x4d, 0x99, 0x43, 0x07, 0x3c, 0x0c, 0xf1, 0x9f, 0x0b, 0xfc,
   0x5b, 0x81, 0x47, 0x02, 0x16, 0x04, 0x31, 0x1c, 0x0b, 0x1f, 0x17, 0x89,
   0x4d, 0x06, 0x1a, 0x04, 0x31, 0x38, 0x02, 0x07, 0x56, 0x89, 0x49, 0x04,
   0x0b, 0x04, 0xb1, 0x72, 0x82, 0xa1, 0x54, 0x9a, 0x49, 0x04, 0x1d, 0x66,
   0x50, 0xe7, 0xc2, 0xf0, 0x54, 0x9a, 0x58, 0x04, 0x0d, 0x62, 0xc1, 0x1f,
   0x44, 0xfc, 0x51, 0x90, 0x90, 0x04, 0x86, 0x63, 0xe0, 0x74, 0x04, 0xef,
   0x31, 0x1a, 0x91, 0x00, 0x02, 0xe2, 0xc1, 0xfd, 0x84, 0xf9, 0x30, 0x0a,
   0x91, 0x00, 0x82, 0xa9, 0xc0, 0xb9, 0x84, 0xf9, 0x31, 0x16, 0x81, 0x00,
   0x42, 0xa9, 0xdb, 0x7f, 0x0c, 0xff, 0x1c, 0x16, 0x11, 0x00, 0x02, 0x28,
   0x0b, 0x07, 0x08, 0x60, 0x1c, 0x02, 0x91, 0x00, 0x46, 0x29, 0x0e, 0x00,
   0x00, 0x00, 0x10, 0x16, 0x11, 0x02, 0x06, 0x29, 0x04, 0x00, 0x00, 0x00,
   0x10, 0x16, 0x91, 0x06, 0xa6, 0x2a, 0x04, 0x00, 0x00, 0x00, 0x18, 0x24,
   0x91, 0x04, 0x86, 0x2a, 0x04, 0x00, 0x00, 0x00, 0x18, 0x27, 0x93, 0x04,
   0x96, 0x4a, 0x04, 0x00, 0x00, 0x00, 0x04, 0x02, 0x91, 0x04, 0x86, 0x4a,
   0x0c, 0x00, 0x00, 0x00, 0x1e, 0x23, 0x93, 0x04, 0x56, 0x88, 0x08, 0x00,
   0x00, 0x00, 0x90, 0x21, 0x93, 0x04, 0x52, 0x0a, 0x09, 0x80, 0x01, 0x00,
   0xd0, 0x21, 0x95, 0x04, 0x57, 0x0a, 0x0f, 0x80, 0x27, 0x00, 0xd8, 0x20,
   0x9d, 0x04, 0x5d, 0x08, 0x1c, 0x80, 0x67, 0x00, 0xe4, 0x01, 0x85, 0x04,
   0x79, 0x8a, 0x3f, 0x00, 0x00, 0x00, 0xf4, 0x11, 0x85, 0x06, 0x39, 0x08,
   0x7d, 0x00, 0x00, 0x18, 0xb7, 0x10, 0x81, 0x03, 0x29, 0x12, 0xcb, 0x00,
   0x7e, 0x30, 0x28, 0x00, 0x85, 0x03, 0x29, 0x10, 0xbe, 0x81, 0xff, 0x27,
   0x0c, 0x10, 0x85, 0x03, 0x29, 0x32, 0xfa, 0xc1, 0xff, 0x27, 0x94, 0x11,
   0x85, 0x03, 0x28, 0x20, 0x6c, 0xe1, 0xff, 0x07, 0x0c, 0x01, 0x85, 0x01,
   0x28, 0x62, 0x5c, 0xe3, 0x8f, 0x03, 0x4e, 0x91, 0x80, 0x05, 0x39, 0x40,
   0xf4, 0xc2, 0xff, 0x00, 0x9f, 0x91, 0x84, 0x05, 0x31, 0xc6, 0xe8, 0x07,
   0x7f, 0x80, 0xcd, 0x00, 0xc4, 0x04, 0x31, 0x06, 0xc9, 0x0e, 0x00, 0xc0,
   0x48, 0x88, 0xe0, 0x04, 0x79, 0x04, 0xdb, 0x12, 0x00, 0x30, 0x0c, 0xc8,
   0xe4, 0x04, 0x6d, 0x06, 0xb6, 0x23, 0x00, 0x18, 0x1c, 0xc0, 0x84, 0x04,
   0x25, 0x0c, 0xff, 0xc2, 0x00, 0x4e, 0x06, 0xb0, 0x80, 0x04, 0x3f, 0x8a,
   0xb3, 0x83, 0xff, 0xc3, 0x03, 0x91, 0x84, 0x04, 0x2e, 0xd8, 0x0f, 0x3f,
   0x00, 0x00, 0x5f, 0x83, 0x84, 0x04, 0x2a, 0x70, 0xfd, 0x7f, 0x00, 0x00,
   0xc8, 0xc0, 0x84, 0x04, 0x4b, 0xe2, 0x2f, 0x01, 0x00, 0x08, 0x58, 0x60,
   0x80, 0x04, 0x5b, 0x82, 0xff, 0x01, 0x00, 0x08, 0xd0, 0xa0, 0x84, 0x04,
   0x72, 0x80, 0xe5, 0x00, 0x00, 0x08, 0xd2, 0x20, 0x44, 0x04, 0xca, 0x02,
   0xff, 0x00, 0x00, 0x08, 0xde, 0xa0, 0x44, 0x04, 0x82, 0x02, 0x6d, 0x00,
   0x00, 0x08, 0xf6, 0xb0, 0x40, 0x02, 0x82, 0x07, 0x3f, 0x00, 0x00, 0x08,
   0x44, 0x58, 0x44, 0x02, 0x93, 0x3f, 0x1f, 0x00, 0x00, 0x30, 0x88, 0x4f,
   0x44, 0x03, 0x83, 0x23, 0x3e, 0x00, 0x00, 0x00, 0x18, 0x60, 0xe0, 0x07,
   0xe3, 0x0f, 0xfe, 0x00, 0x00, 0x00, 0x70, 0x70, 0xe4, 0x07, 0xc7, 0x1b,
   0xfe, 0x01, 0x00, 0x00, 0xe0, 0x3c, 0xe4, 0x07, 0xc7, 0xe3, 0xfe, 0x1f,
   0x00, 0x00, 0xff, 0x1f, 0xfc, 0x07, 0xc7, 0x03, 0xf8, 0x33, 0x00, 0xc0,
   0xf0, 0x07, 0xff, 0x07, 0x87, 0x02, 0xfc, 0x43, 0x00, 0x60, 0xf0, 0xff,
   0xff, 0x07, 0x8f, 0x06, 0xbe, 0x87, 0x00, 0x30, 0xf8, 0xff, 0xff, 0x07,
   0x8f, 0x14, 0x9c, 0x8f, 0x00, 0x00, 0xfc, 0xff, 0xff, 0x07, 0x9f, 0x8d,
   0x8a, 0x0f, 0x00, 0x00, 0xfe, 0xff, 0xff, 0x07, 0xbf, 0x0b, 0x80, 0x1f,
   0x00, 0x00, 0xff, 0xff, 0xff, 0x07, 0x7f, 0x3a, 0x80, 0x3f, 0x00, 0x80,
   0xff, 0xff, 0xff, 0x07, 0xff, 0x20, 0xc0, 0x3f, 0x00, 0x80, 0xff, 0xff,
   0xff, 0x07, 0xff, 0x01, 0xe0, 0x7f, 0x00, 0xc0, 0xff, 0xff, 0xff, 0x07,
   0xff, 0x0f, 0xf8, 0xff, 0x40, 0xe0, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff,
   0xff, 0xff, 0x40, 0xf0, 0xff, 0xff, 0xff, 0x07, 0xff, 0xff, 0xff, 0xff,
   0x41, 0xf0, 0xff, 0xff, 0xff, 0x07
   ]

data ToggleButtons = ToggleButtons {
    leftb :: Ref ToggleButton,
    rightb :: Ref ToggleButton,
    topb :: Ref ToggleButton,
    bottomb :: Ref ToggleButton,
    insideb :: Ref ToggleButton,
    overb :: Ref ToggleButton,
    inactb :: Ref ToggleButton
  }

buttonCb :: IORef (ToggleButtons, Ref Button, Ref DoubleWindow) -> Ref ToggleButton -> IO ()
buttonCb state' _ =
  do
    (toggleButtons', b, win) <- readIORef state'
    i <- newIORef []
    let addIf :: (ToggleButtons -> Ref ToggleButton) -> AlignType -> IO ()
        addIf b' alignType' = do
          v' <- getValue (b' toggleButtons')
          when v' (modifyIORef i ((++) [alignType']))
    addIf leftb AlignTypeLeft
    addIf rightb AlignTypeRight
    addIf topb AlignTypeTop
    addIf bottomb AlignTypeBottom
    addIf insideb AlignTypeInside
    addIf overb AlignTypeTextOverImage
    readIORef i >>= setAlign b . Alignments
    inactbValue <- getValue (inactb toggleButtons')
    if inactbValue then deactivate b
      else activate b
    redraw win

main :: IO ()
main = do
  window <- doubleWindowNew (Size (Width 400) (Height 400)) Nothing Nothing
  begin window
  button <- buttonNew
              (Rectangle
                (Position (X 140) (Y 160))
                (Size (Width 120) (Height 120)))
              (Just "Bitmap")
  bitmap <- bitmapNew
             (BitmapHs
               sorceressBits
               (Size
                 (Width sorceressWidth)
                 (Height sorceressHeight)))
  setImage button (Just bitmap)
  leftb' <- toggleButtonNew (Rectangle (Position (X 25) (Y 50)) (Size (Width 50) (Height 25))) (Just "left")
  rightb' <- toggleButtonNew (Rectangle (Position (X 75) (Y 50)) (Size (Width 50) (Height 25))) (Just "right")
  topb' <- toggleButtonNew (Rectangle (Position (X 125) (Y 50)) (Size (Width 50) (Height 25))) (Just "top")
  bottomb' <- toggleButtonNew (Rectangle (Position (X 175) (Y 50)) (Size (Width 50) (Height 25))) (Just "bottom")
  insideb' <- toggleButtonNew (Rectangle (Position (X 225) (Y 50)) (Size (Width 50) (Height 25))) (Just "inside")
  overb' <- toggleButtonNew (Rectangle (Position (X 25) (Y 75)) (Size (Width 100) (Height 25))) (Just "text over")
  inactb' <- toggleButtonNew (Rectangle (Position (X 125) (Y 75)) (Size (Width 100) (Height 25))) (Just "inactive")
  state' <- newIORef ((ToggleButtons leftb' rightb' topb' bottomb' insideb' overb' inactb'),
                      button,
                      window)
  setCallback leftb' $ buttonCb state'
  setCallback rightb' $ buttonCb state'
  setCallback topb' $ buttonCb state'
  setCallback bottomb' $ buttonCb state'
  setCallback insideb' $ buttonCb state'
  setCallback overb' $ buttonCb state'
  setCallback inactb' $ buttonCb state'
  setResizable window (Just window)
  end window
  showWidget window
  _ <- FL.run
  return ()