Diagrams.Backend.HsQML.Render

Interface to the Diagrams backend machinery.

Documentation

data HsQML

Constructors

HsQML

Instances

Backend HsQML V2 Double

Renderable (Text Double) HsQML

Renderable (Path V2 Double) HsQML

Renderable (Trail V2 Double) HsQML

type V HsQML = V2

type N HsQML = Double

data Options HsQML V2 Double = HsQMLOptions {

• _sizeSpec :: SizeSpec V2 Double

}

type Result HsQML V2 Double = IO (ObjRef (DiagramObj ()))

data Render HsQML V2 Double = HsQMLRender {

• getObj :: DiagramObj ()

}

sizeSpec :: Functor f => (SizeSpec V2 Double -> f (SizeSpec V2 Double)) -> Options HsQML V2 Double -> f (Options HsQML V2 Double)

A lens from HsQML backend options to a 'SizeSpec V2 Double'.

 sizeSpec :: Lens' (Options HsQML V2) (SizeSpec V2 Double)

addAnnotation :: Annotation -> DiagramObj ()

Currently not supported, returns mempty.

useStyle :: Style V2 Double -> DiagramObj ()

Apply style to a Context2D. Currently supports the following Attributes:

• LineCap
• LineJoin
• LineMiterLimit
• Opacity
• LineWidth
• LineTexture
• FillTexture
• Font
• FillRule

renderHsQML :: Options HsQML V2 Double -> RTree HsQML V2 Double Annotation -> Render HsQML V2 Double

Render a RTree to an intermediate representation.

renderTrail :: P2 Double -> Trail V2 Double -> DiagramObj ()

Render a trail, closing loops.

renderSeg :: P2 Double -> Segment Closed V2 Double -> DiagramObj ()

Render a closed segment beginning on a given point.

closeSeg

Arguments

:: Segment Open V2 Double

The last segment of a loop.

-> P2 Double

First end.

-> P2 Double

Second end.

-> DiagramObj ()

Close a loop using the last (open) segment and two endpoints.