Diagrams.Backend.HsQML

The end-user API.

Documentation

renderHsQML :: SizeSpec V2 Double -> Diagram HsQML -> IO (ObjRef (DiagramObj ()))

Render a diagram to a QML object that controls a Canvas.

data SizeSpec v n :: (* -> *) -> * -> *

A SizeSpec is a way of specifying a size without needed lengths for all the dimensions.

Instances

Functor v => Functor (SizeSpec v)

Show (v n) => Show (SizeSpec v n)

Generic (SizeSpec v n)

Hashable (v n) => Hashable (SizeSpec v n)

type Rep (SizeSpec v n) = D1 D1SizeSpec (C1 C1_0SizeSpec (S1 NoSelector (Rec0 (v n))))

type V (SizeSpec v n) = v

type N (SizeSpec v n) = n

mkSizeSpec :: (Functor v, Num n) => v (Maybe n) -> SizeSpec v n

Make a SizeSpec from a vector of maybe values. Any negative values will be ignored. For 2D SizeSpecs see mkWidth and mkHeight from Diagrams.TwoD.Size.

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 ()

}

data family Options b v n

Backend-specific rendering options.

Instances

data Options NullBackend

data Options HsQML V2 Double = HsQMLOptions {

• _sizeSpec :: SizeSpec V2 Double

}

type B = HsQML

data DiagramObj a

The type to which the parts of a diagram are rendered. The end result of rendering is always a DiagramObj (). The monoid instance sequences actions on the same argument, with noop as identity. As DiagramObj is a wrapper over a function to IO, Functor, Applicative, Monad, and MonadIO instances are defined in an expected way.

Instances

Monad DiagramObj

Functor DiagramObj

Applicative DiagramObj

MonadIO DiagramObj

Monoid a => Monoid (DiagramObj a)

DefaultClass (DiagramObj ())