module Wumpus.Basic.Dots
(
DotAnchor
, dotCircle
, dotDisk
, dotSquare
, dotChar
, dotText
) where
import Wumpus.Basic.Anchors
import qualified Wumpus.Basic.Dots.Base as BD
import Wumpus.Basic.Graphic.DrawingAttr
import Wumpus.Basic.Monads.Drawing
import Wumpus.Basic.Utils.Intersection
import Wumpus.Core
import Data.AffineSpace
data DotAnchor u = forall s.
DotAnchor { center_anchor :: Point2 u
, radial_anchor :: Radian -> Point2 u
, cardinal_anchor :: Cardinal -> Point2 u }
data Cardinal = NN | NE | EE | SE | SS | SW | WW | NW
deriving (Eq,Show)
type instance DUnit (DotAnchor u) = u
instance CenterAnchor (DotAnchor u) where
center (DotAnchor ca _ _) = ca
instance RadialAnchor (DotAnchor u) where
radialAnchor theta (DotAnchor _ ra _) = ra theta
instance CardinalAnchor (DotAnchor u) where
north (DotAnchor _ _ c1) = c1 NN
south (DotAnchor _ _ c1) = c1 SS
east (DotAnchor _ _ c1) = c1 EE
west (DotAnchor _ _ c1) = c1 WW
instance CardinalAnchor2 (DotAnchor u) where
northeast (DotAnchor _ _ c1) = c1 NE
southeast (DotAnchor _ _ c1) = c1 SE
southwest (DotAnchor _ _ c1) = c1 SW
northwest (DotAnchor _ _ c1) = c1 NW
circleAnchor :: Floating u => u -> Point2 u -> DotAnchor u
circleAnchor rad ctr = DotAnchor ctr
(\theta -> ctr .+^ (avec theta rad))
(radialCardinal rad ctr)
radialCardinal :: Floating u => u -> Point2 u -> Cardinal -> Point2 u
radialCardinal rad ctr NN = ctr .+^ (avec (pi/2) rad)
radialCardinal rad ctr NE = ctr .+^ (avec (pi/4) rad)
radialCardinal rad ctr EE = ctr .+^ (avec 0 rad)
radialCardinal rad ctr SE = ctr .+^ (avec (7/4 * pi) rad)
radialCardinal rad ctr SS = ctr .+^ (avec (6/4 * pi) rad)
radialCardinal rad ctr SW = ctr .+^ (avec (5/4 * pi) rad)
radialCardinal rad ctr WW = ctr .+^ (avec pi rad)
radialCardinal rad ctr NW = ctr .+^ (avec (3/4 * pi) rad)
rectCardinal :: Floating u => u -> u -> Point2 u -> Cardinal -> Point2 u
rectCardinal _ hh ctr NN = ctr .+^ (vvec hh)
rectCardinal hw hh ctr NE = ctr .+^ (vec hw hh)
rectCardinal hw _ ctr EE = ctr .+^ (hvec hw)
rectCardinal hw hh ctr SE = ctr .+^ (vec hw (hh))
rectCardinal _ hh ctr SS = ctr .+^ (vvec (hh))
rectCardinal hw hh ctr SW = ctr .+^ (vec (hw) (hh) )
rectCardinal hw _ ctr WW = ctr .+^ (hvec (hw))
rectCardinal hw hh ctr NW = ctr .+^ (vec (hw) hh)
rectangleAnchor :: (Real u, Floating u) => u -> u -> Point2 u -> DotAnchor u
rectangleAnchor hw hh ctr =
DotAnchor { center_anchor = ctr
, radial_anchor = fn
, cardinal_anchor = rectCardinal hw hh ctr }
where
fn theta = maybe ctr id $ findIntersect ctr theta
$ rectangleLines ctr hw hh
dotCircle :: (Floating u, FromPtSize u) => ANode u (DotAnchor u)
dotCircle = AGraphic (BD.dotCircle) mkF
where
mkF attr pt = circleAnchor (0.5 * markHeight attr) pt
dotDisk :: (Floating u, FromPtSize u) => ANode u (DotAnchor u)
dotDisk = AGraphic (BD.dotDisk) mkF
where
mkF attr pt = circleAnchor (0.5 * markHeight attr) pt
dotSquare :: (Floating u, Real u, FromPtSize u) => ANode u (DotAnchor u)
dotSquare = AGraphic (BD.dotSquare) mkF
where
mkF attr pt = let h = markHeight attr in
rectangleAnchor (0.5*h) (0.5*h) pt
dotChar :: (Floating u, Real u, FromPtSize u)
=> Char -> ANode u (DotAnchor u)
dotChar ch = dotText [ch]
dotText :: (Floating u, Real u, FromPtSize u)
=> String -> ANode u (DotAnchor u)
dotText str = AGraphic (BD.dotText str) mkF
where
mkF attr pt = let (w,h) = textDimensions str attr in
rectangleAnchor (0.5*w) (0.5*h) pt