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 (but not instantiates) a input box cell with polimorphic value, identified by a string. the cell has a getter and a setter. To instantiate it us his method mk

bcell :: (Show a, Read a, Typeable a) => TransIO (Cell a)

creates (but not instantiates) an input box that has a setter and a getter. To instantiate it us his method mk

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

Cell assignment using the cell setter

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