Wumpus.Basic.Kernel.Base.DrawingContext

Drawing attributes

** WARNING ** - this module needs systematic naming schemes both for update functions (primaryColour, ...) and for synthesized selectors (e.g. lowerxHeight). The current names will change.

Drawing context

data DrawingContext

Constructors

DrawingContext

Fields

glyph_tables :: GlyphMetrics

fallback_metrics :: MetricsOps

stroke_props :: StrokeAttr

font_props :: FontAttr

stroke_colour :: RGBi

fill_colour :: RGBi

line_spacing_factor :: Double

type DrawingContextF = DrawingContext -> DrawingContext

standardContext :: FontSize -> DrawingContext

metricsContext :: FontSize -> GlyphMetrics -> DrawingContext

default_drawing_context :: DrawingContext

DrawingCtxM (reader) monad

class (Applicative m, Monad m) => DrawingCtxM m where

Methods

askDC :: m DrawingContext

localize :: (DrawingContext -> DrawingContext) -> m a -> m a

Instances

DrawingCtxM CF

DrawingCtxM (CF1 r1)

DrawingCtxM (TraceDrawing u)

DrawingCtxM (CF2 r1 r2)

Monad m => DrawingCtxM (TraceDrawingT u m)

DrawingCtxM m => DrawingCtxM (TurtleT u m)

DrawingCtxM m => DrawingCtxM (ScalingT ux uy u m)

asksDC :: DrawingCtxM m => (DrawingContext -> a) -> m a

Project a value out of a context.

Glyph metrics

withFontMetrics :: (MetricsOps -> PtSize -> u) -> DrawingContext -> u