Safe Haskell	None
Language	Haskell2010

Layer

Description

A module for creating collections of heterogenous shape types with uniform styling and rendering them as SVG elements.

Synopsis

data ShapeLike
pattern MkShape :: a -> ShapeLike
data Layer
shapes :: Layer -> [ShapeLike]
style :: Layer -> Maybe StyleAttrs
mkLayer :: (Show a, SvgShape a, Transformable a) => String -> [a] -> Layer
mkLayerWithStyle :: (Show a, SvgShape a, Transformable a) => String -> [a] -> StyleAttrs -> Layer
pack :: (Show a, SvgShape a, Transformable a) => a -> ShapeLike
(+:) :: (Show a, SvgShape a, Transformable a) => a -> Layer -> Layer

Documentation

data ShapeLike Source #

We use an existential type to wrap anything that meets our defintition of a shape. That is to say it can be shown, can be transformed according to methods in the Transformable typeclass, and can be converted to an SVG element. This includes arcs, circles, lines, and rectangles. Heterogenous shapes can all be placed in a single list and transformed via this type.

Instances

Eq ShapeLike Source #
Instance details Defined in Layer Methods (==) :: ShapeLike -> ShapeLike -> Bool # (/=) :: ShapeLike -> ShapeLike -> Bool #
Show ShapeLike Source #
Instance details Defined in Layer Methods showsPrec :: Int -> ShapeLike -> ShowS # show :: ShapeLike -> String # showList :: [ShapeLike] -> ShowS #
Transformable ShapeLike Source #
Instance details Defined in Layer Methods translate :: Point -> ShapeLike -> ShapeLike Source # translatePoints :: [Point] -> ShapeLike -> [ShapeLike] Source # rotate :: Point -> Float -> ShapeLike -> ShapeLike Source # mirror :: Point -> Point -> ShapeLike -> ShapeLike Source # offset :: Point -> Bool -> ShapeLike -> ShapeLike Source #
SvgShape ShapeLike Source #
Instance details Defined in Layer Methods toSvg :: ShapeLike -> Svg Source #
SvgShape [ShapeLike] Source #
Instance details Defined in Layer Methods toSvg :: [ShapeLike] -> Svg Source #

pattern MkShape :: a -> ShapeLike Source #

data Layer Source #

A layer is just a sequence of shape-like things with a name and style

Instances

Eq Layer Source #
Instance details Defined in Layer Methods (==) :: Layer -> Layer -> Bool # (/=) :: Layer -> Layer -> Bool #
Show Layer Source #
Instance details Defined in Layer Methods showsPrec :: Int -> Layer -> ShowS # show :: Layer -> String # showList :: [Layer] -> ShowS #
Semigroup Layer Source #	Layers can be combined.
Instance details Defined in Layer Methods (<>) :: Layer -> Layer -> Layer # sconcat :: NonEmpty Layer -> Layer # stimes :: Integral b => b -> Layer -> Layer #
Monoid Layer Source #	There exists an identity element for any layer.
Instance details Defined in Layer Methods mempty :: Layer # mappend :: Layer -> Layer -> Layer # mconcat :: [Layer] -> Layer #
SvgShape Layer Source #
Instance details Defined in Layer Methods toSvg :: Layer -> Svg Source #

shapes :: Layer -> [ShapeLike] Source #

style :: Layer -> Maybe StyleAttrs Source #

mkLayer :: (Show a, SvgShape a, Transformable a) => String -> [a] -> Layer Source #

Layer constructor from a list of shapes: without style

mkLayerWithStyle :: (Show a, SvgShape a, Transformable a) => String -> [a] -> StyleAttrs -> Layer Source #

Layer constructor from a list of shapes: with style

pack :: (Show a, SvgShape a, Transformable a) => a -> ShapeLike Source #

A constructor to create a shape-like object from any shape.

(+:) :: (Show a, SvgShape a, Transformable a) => a -> Layer -> Layer infixr 5 Source #

Cons operation on a layer:

layer = mkLayer "layer-1" [shape1, shape3, shape3]

newlayer = shape+: layer