module Graphics.PS.Paper where
data Paper = Paper {width :: Int
,height :: Int}
deriving (Eq,Show)
data BBox = BBox {llx :: Int
,lly :: Int
,urx :: Int
,ury :: Int
}
| HRBBox {llx :: Int
,lly :: Int
,urx :: Int
,ury :: Int
,hrllx :: Double
,hrlly :: Double
,hrurx :: Double
,hrury :: Double
}
deriving (Eq,Show)
landscape :: Paper -> Paper
landscape (Paper w h) = Paper h w
divRound :: Int -> Int -> Int
divRound x y =
let x' = (fromIntegral x)::Double
y' = (fromIntegral y)::Double
in round (x' / y')
iso_down_scale :: Paper -> Paper
iso_down_scale (Paper w h) = Paper (h `divRound` 2) w
a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10 :: Paper
a0 = Paper 841 1189
a1 = iso_down_scale a0
a2 = iso_down_scale a1
a3 = iso_down_scale a2
a4 = iso_down_scale a3
a5 = iso_down_scale a4
a6 = iso_down_scale a5
a7 = iso_down_scale a6
a8 = iso_down_scale a7
a9 = iso_down_scale a8
a10 = iso_down_scale a9
b0,b1,b2,b3,b4,b5,b6,b7,b8,b9,b10 :: Paper
b0 = Paper 1000 1414
b1 = iso_down_scale b0
b2 = iso_down_scale b1
b3 = iso_down_scale b2
b4 = iso_down_scale b3
b5 = iso_down_scale b4
b6 = iso_down_scale b5
b7 = iso_down_scale b6
b8 = iso_down_scale b7
b9 = iso_down_scale b8
b10 = iso_down_scale b9
c0,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10 :: Paper
c0 = Paper 917 1297
c1 = iso_down_scale c0
c2 = iso_down_scale c1
c3 = iso_down_scale c2
c4 = iso_down_scale c3
c5 = iso_down_scale c4
c6 = iso_down_scale c5
c7 = iso_down_scale c6
c8 = iso_down_scale c7
c9 = iso_down_scale c8
c10 = iso_down_scale c9
usLetter :: Paper
usLetter = Paper 216 279
broadsheet,berliner,tabloid :: Paper
broadsheet = Paper 600 750
berliner = Paper 315 470
tabloid = Paper 280 430
proportion :: Paper -> Double
proportion p =
let f = fromIntegral
in f (height p) / f (width p)