{-# OPTIONS -Wall #-}

module KernPic where

import Wumpus.Core
import Wumpus.Core.Colour

import System.Directory



main :: IO ()
main = do 
    createDirectoryIfMissing True "./out/"
    writeEPS_latin1 "./out/kern_pic01.eps" kern_pic
    writeSVG_latin1 "./out/kern_pic01.svg" kern_pic


kern_pic :: DPicture
kern_pic = pic1 `picOver` pic2 `picOver` pic3 

pic1 :: DPicture
pic1 = frame [ helveticaLabelH mystere   (P2 0 50)
             , helveticaLabelH mystere   (P2 0 25)
             ]

pic2 :: DPicture
pic2 = illustrateBoundsPrim blue_violet $ 
          helveticaLabelV mystere   (P2 100 140)

pic3 :: DPicture
pic3 = frame [ symbolLabelH uUpsilon (P2 0 0) ]

mystere ::[DKerningChar]
mystere = [ kernchar 0  'm'
          , kernchar 15 'y'
          , kernchar 10 's'
          , kernchar 10 't'
          , kernEscInt 6 232
          , kernchar 10 'r'
          , kernchar 6 'e'
          ]

-- Note - to assert that this is working check both the 
-- PostScript and the SVG.
--
uUpsilon :: [ DKerningChar ]
uUpsilon = [ kernEscInt 6 0o241, kernchar 12 'a', kernchar 12 'b' ] 

helveticaLabelH :: [KerningChar Double] -> DPoint2 -> DPrimitive
helveticaLabelH xs pt = hkernlabel black helvetica18 xs pt

helveticaLabelV :: [KerningChar Double] -> DPoint2 -> DPrimitive
helveticaLabelV xs pt = vkernlabel black helvetica18 xs pt

symbolLabelH :: [KerningChar Double] -> DPoint2 -> DPrimitive
symbolLabelH xs pt = hkernlabel black symbol18 xs pt


helvetica18 :: FontAttr
helvetica18 = FontAttr 18 (FontFace "Helvetica" 
                                    "Helvetica" 
                                    SVG_REGULAR 
                                    latin1_font_encoder)


symbol18 :: FontAttr
symbol18 = FontAttr 18 (FontFace "Symbol" 
                                 "Symbol" 
                                 SVG_REGULAR
                                 symbol_font_encoder)

blue_violet             :: RGBi
blue_violet             = RGBi 0x8a 0x2b 0xe2