Wumpus.Basic.Monads.DrawingCtxClass

Portability	GHC
Stability	unstable
Maintainer	stephen.tetley@gmail.com

Contents

Re-exports from Wumpus.Basic.Graphic.DrawingAttr
DrawingCtx class

Description

Class.

Synopsis

data DrawingAttr = DrawingAttr {

line_width :: Double

font_props :: FontAttr

stroke_colour :: DRGB

fill_colour :: DRGB

}

standardAttr :: FontSize -> DrawingAttr

class Monad m => DrawingCtxM m where

askDrawingCtx :: m DrawingAttr

localCtx :: DrawingAttr -> m a -> m a

withinModifiedCtx :: DrawingCtxM m => (DrawingAttr -> DrawingAttr) -> m a -> m a

strokeAttr :: DrawingCtxM m => m (DRGB, StrokeAttr)

fillAttr :: DrawingCtxM m => m DRGB

textAttr :: DrawingCtxM m => m (DRGB, FontAttr)

markHeight :: (Fractional u, DrawingCtxM m) => m u

textDimensions :: (Fractional u, DrawingCtxM m) => String -> m (u, u)

Re-exports from Wumpus.Basic.Graphic.DrawingAttr

data DrawingAttr

Source

Constructors

DrawingAttr

line_width :: Double
font_props :: FontAttr
stroke_colour :: DRGB
fill_colour :: DRGB

Instances

Eq DrawingAttr

Show DrawingAttr

standardAttr :: FontSize -> DrawingAttr

Source

DrawingCtx class

class Monad m => DrawingCtxM m where

Source

Methods

askDrawingCtx :: m DrawingAttr

Source

localCtx :: DrawingAttr -> m a -> m a

Source

Instances

DrawingCtxM DrawingCtx

Monad m => DrawingCtxM (DrawingCtxT m)

DrawingCtxM (ConsDrawing u)

DrawingCtxM (SnocDrawing u)

DrawingCtxM m => DrawingCtxM (TraceT i m)

DrawingCtxM m => DrawingCtxM (TurtleT u m)

DrawingCtxM m => DrawingCtxM (STraceT i m)

Monad m => DrawingCtxM (ConsDrawingT u m)

Monad m => DrawingCtxM (SnocDrawingT u m)

withinModifiedCtx :: DrawingCtxM m => (DrawingAttr -> DrawingAttr) -> m a -> m a

Source

strokeAttr :: DrawingCtxM m => m (DRGB, StrokeAttr)

Source

fillAttr :: DrawingCtxM m => m DRGB

Source

textAttr :: DrawingCtxM m => m (DRGB, FontAttr)

Source

markHeight :: (Fractional u, DrawingCtxM m) => m u

Source

textDimensions :: (Fractional u, DrawingCtxM m) => String -> m (u, u)

Source

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