| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Graphics.Rendering.Chart.State
- plot :: ToPlot p => EC (Layout x y) (p x y) -> EC (Layout x y) ()
- plotLeft :: ToPlot p => EC (LayoutLR x y1 y2) (p x y1) -> EC (LayoutLR x y1 y2) ()
- plotRight :: ToPlot p => EC (LayoutLR x y1 y2) (p x y2) -> EC (LayoutLR x y1 y2) ()
- takeColor :: EC l (AlphaColour Double)
- takeShape :: EC l PointShape
- data CState
- colors :: Lens' CState [AlphaColour Double]
- shapes :: Lens' CState [PointShape]
- type EC l a = StateT l (State CState) a
- execEC :: Default l => EC l a -> l
- liftEC :: Default l1 => EC l1 a -> EC l2 l1
- liftCState :: State CState a -> EC l a
Documentation
plot :: ToPlot p => EC (Layout x y) (p x y) -> EC (Layout x y) () Source
Add a plot to the Layout being constructed.
plotLeft :: ToPlot p => EC (LayoutLR x y1 y2) (p x y1) -> EC (LayoutLR x y1 y2) () Source
Add a plot against the left axis to the LayoutLR being constructed.
plotRight :: ToPlot p => EC (LayoutLR x y1 y2) (p x y2) -> EC (LayoutLR x y1 y2) () Source
Add a plot against the right axis tof the LayoutLR being constructed.
takeColor :: EC l (AlphaColour Double) Source
Pop and return the next color from the state
takeShape :: EC l PointShape Source
Pop and return the next shape from the state
The state held when monadically constructing a graphical element
Instances
| Default CState | |
| (Default a, ToRenderable a) => ToRenderable (EC a b) |
shapes :: Lens' CState [PointShape] Source
type EC l a = StateT l (State CState) a Source
We use nested State monads to give nice syntax. The outer state is the graphical element being constructed (typically a layout). The inner state contains any additional state reqired. This approach means that lenses and the state monad lens operators can be used directly on the value being constructed.
execEC :: Default l => EC l a -> l Source
Run the monadic EC computation, and return the graphical
element (ie the outer monad' state)