GHCJS.HPlay.Cell

Documentation

data Cell a

Constructors

Cell

Fields

• mk :: Maybe a -> Widget a
• setter :: a -> IO ()
• getter :: IO (Maybe a)

Instances

Attributable (Cell a)

Methods

(!) :: Cell a -> Attribute -> Cell a

boxCell :: (Show a, Read a, Typeable a) => ElemID -> Cell a

creates a input box cell with polimorphic value, identified by a string. the cell can be updated programatically

(.=) :: MonadIO m => Cell a -> a -> m () infixr 0

Cell assignment

get :: Cell x -> TransIO x

mkscell :: JSString -> Maybe Double -> Expr Double -> Widget Double

make a spreadsheet cell. a spreadsheet cell is an input-output box that takes input values from the user, has an expression associated and display the result value after executing calc

see http://tryplayg.herokuapp.com/try/spreadsheet.hs/edit

scell :: JSString -> Expr Double -> Cell Double

gcell :: JSString -> Widget Double

within a mkscell formula, gcell get the the value of another cell using his name.

see http://tryplayg.herokuapp.com/try/spreadsheet.hs/edit

calc :: Widget ()

executes the spreadsheet adjusting the vaules of the cells created with mkscell and solving loops

see http://tryplayg.herokuapp.com/try/spreadsheet.hs/edit

Orphan instances

(Num a, Eq a, Fractional a) => Fractional (Widget a)

Methods

(/) :: Widget a -> Widget a -> Widget a

recip :: Widget a -> Widget a

fromRational :: Rational -> Widget a

(Num a, Eq a) => Num (Widget a)

Methods

(+) :: Widget a -> Widget a -> Widget a

(-) :: Widget a -> Widget a -> Widget a

(*) :: Widget a -> Widget a -> Widget a

negate :: Widget a -> Widget a

abs :: Widget a -> Widget a

signum :: Widget a -> Widget a

fromInteger :: Integer -> Widget a