Graphics.Rendering.Chart.Renderable

Description

This module contains the definition of the Renderable type, which is a composable drawing element, along with assorted functions to them.

Synopsis

Documentation

data Renderable a Source

A Renderable is a record of functions required to layout a graphic element.

Constructors

Renderable
Fields minsize :: CRender RectSize A Cairo action to calculate a minimum size. render :: RectSize -> CRender (PickFn a) A Cairo action for drawing it within a rectangle. The rectangle is from the origin to the given point. The resulting pick function maps a point in the image to a value.

class ToRenderable a whereSource

A type class abtracting the conversion of a value to a Renderable.

Methods

toRenderable :: a -> Renderable ()Source

Instances

ToRenderable Rectangle
ToRenderable PieChart
ToRenderable PieLayout
ToRenderable Layout1DDD
ToRenderable a => ToRenderable (Grid a)
ToRenderable (Legend x y)
(Ord x, Ord y) => ToRenderable (Layout1 x y)

type PickFn a = Point -> Maybe aSource

A function that maps a point in device coordinates to some value.

Perhaps it might be generalised from Maybe a to (MonadPlus m ) => m a in the future.

renderableToPNGFile :: Renderable a -> Int -> Int -> FilePath -> IO (PickFn a)Source

Output the given renderable to a PNG file of the specifed size (in pixels), to the specified file.

renderableToPDFFile :: Renderable a -> Int -> Int -> FilePath -> IO ()Source

Output the given renderable to a PDF file of the specifed size (in points), to the specified file.

renderableToPSFile :: Renderable a -> Int -> Int -> FilePath -> IO ()Source

Output the given renderable to a postscript file of the specifed size (in points), to the specified file.

renderableToSVGFile :: Renderable a -> Int -> Int -> FilePath -> IO ()Source

Output the given renderable to an SVG file of the specifed size (in points), to the specified file.

vectorEnv :: CEnv Source

bitmapEnv :: CEnv Source

fillBackground :: CairoFillStyle -> Renderable a -> Renderable aSource

Overlay a renderable over a solid background fill.

addMargins Source

Arguments

:: (Double, Double, Double, Double)	The spacing to be added.
-> Renderable a	The source renderable.
-> Renderable a

Add some spacing at the edges of a renderable.

emptyRenderable :: Renderable aSource

embedRenderable :: CRender (Renderable a) -> Renderable aSource

Helper function for using a renderable, when we generate it in the CRender monad.

label :: CairoFontStyle -> HTextAnchor -> VTextAnchor -> String -> Renderable String Source

Construct a renderable from a text string, aligned with the axes.

rlabel :: CairoFontStyle -> HTextAnchor -> VTextAnchor -> Double -> String -> Renderable String Source

Construct a renderable from a text string, rotated wrt to axes. The angle of rotation is in degrees.

spacer :: RectSize -> Renderable aSource

Create a blank renderable with a specified minimum size.

spacer1 :: Renderable a -> Renderable bSource

Create a blank renderable with a minimum size the same as some other renderable.

setPickFn :: PickFn b -> Renderable a -> Renderable bSource

Replace the pick function of a renderable with another.

mapMaybePickFn :: (a -> Maybe b) -> Renderable a -> Renderable bSource

Map a function over the result of a renderable's pickfunction, keeping only Just results.

mapPickFn :: (a -> b) -> Renderable a -> Renderable bSource

Map a function over result of a renderable's pickfunction.

nullPickFn :: PickFn aSource

rect_minsize :: Accessor Rectangle RectSize Source

Accessor for field rect_minsize_.

rect_fillStyle :: Accessor Rectangle (Maybe CairoFillStyle)Source

Accessor for field rect_fillStyle_.

rect_lineStyle :: Accessor Rectangle (Maybe CairoLineStyle)Source

Accessor for field rect_lineStyle_.

rect_cornerStyle :: Accessor Rectangle RectCornerStyleSource

Accessor for field rect_cornerStyle_.