{-# LANGUAGE RecordWildCards, DeriveGeneric #-}
-- | Datastructures representing the CSS box model,
-- & utilities for operating on them.
module Graphics.Layout.Box(Border(..), mapX, mapY,
        Size(..), mapSizeX, mapSizeY,
        PaddedBox(..), zeroBox, lengthBox, mapX', mapY',
        width, height, minWidth, minHeight, maxWidth, maxHeight,
        leftSpace, rightSpace, topSpace, bottomSpace, hSpace, vSpace,
        Length(..), mapAuto, lowerLength, Zero(..), CastDouble(..)) where

import Control.DeepSeq (NFData)
import GHC.Generics (Generic)

-- | Amount of space surrounding the box.
data Border m n = Border {
    forall m n. Border m n -> m
top :: m, forall m n. Border m n -> m
bottom :: m, forall m n. Border m n -> n
left :: n, forall m n. Border m n -> n
right :: n
} deriving (Border m n -> Border m n -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
forall m n. (Eq m, Eq n) => Border m n -> Border m n -> Bool
/= :: Border m n -> Border m n -> Bool
$c/= :: forall m n. (Eq m, Eq n) => Border m n -> Border m n -> Bool
== :: Border m n -> Border m n -> Bool
$c== :: forall m n. (Eq m, Eq n) => Border m n -> Border m n -> Bool
Eq, ReadPrec [Border m n]
ReadPrec (Border m n)
ReadS [Border m n]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
forall m n. (Read m, Read n) => ReadPrec [Border m n]
forall m n. (Read m, Read n) => ReadPrec (Border m n)
forall m n. (Read m, Read n) => Int -> ReadS (Border m n)
forall m n. (Read m, Read n) => ReadS [Border m n]
readListPrec :: ReadPrec [Border m n]
$creadListPrec :: forall m n. (Read m, Read n) => ReadPrec [Border m n]
readPrec :: ReadPrec (Border m n)
$creadPrec :: forall m n. (Read m, Read n) => ReadPrec (Border m n)
readList :: ReadS [Border m n]
$creadList :: forall m n. (Read m, Read n) => ReadS [Border m n]
readsPrec :: Int -> ReadS (Border m n)
$creadsPrec :: forall m n. (Read m, Read n) => Int -> ReadS (Border m n)
Read, Int -> Border m n -> ShowS
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
forall m n. (Show m, Show n) => Int -> Border m n -> ShowS
forall m n. (Show m, Show n) => [Border m n] -> ShowS
forall m n. (Show m, Show n) => Border m n -> String
showList :: [Border m n] -> ShowS
$cshowList :: forall m n. (Show m, Show n) => [Border m n] -> ShowS
show :: Border m n -> String
$cshow :: forall m n. (Show m, Show n) => Border m n -> String
showsPrec :: Int -> Border m n -> ShowS
$cshowsPrec :: forall m n. (Show m, Show n) => Int -> Border m n -> ShowS
Show, forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
forall m n x. Rep (Border m n) x -> Border m n
forall m n x. Border m n -> Rep (Border m n) x
$cto :: forall m n x. Rep (Border m n) x -> Border m n
$cfrom :: forall m n x. Border m n -> Rep (Border m n) x
Generic)
instance (NFData m, NFData n) => NFData (Border m n)
-- | Convert horizontal spacing via given callback.
mapX :: (n -> nn) -> Border m n -> Border m nn
-- | Convert vertical spacing via given callback.
mapY :: (m -> mm) -> Border m n -> Border mm n
mapX :: forall n nn m. (n -> nn) -> Border m n -> Border m nn
mapX n -> nn
cb Border m n
self = Border m n
self { left :: nn
left = n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Border m n -> n
left Border m n
self, right :: nn
right = n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Border m n -> n
right Border m n
self }
mapY :: forall m mm n. (m -> mm) -> Border m n -> Border mm n
mapY m -> mm
cb Border m n
self = Border m n
self { top :: mm
top = m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Border m n -> m
top Border m n
self, bottom :: mm
bottom = m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Border m n -> m
bottom Border m n
self }

-- | 2D size of a box. Typically inline is width & block is height.
-- This may change as support for vertical layout is added.
data Size m n = Size {forall m n. Size m n -> n
inline :: n, forall m n. Size m n -> m
block :: m} deriving (Size m n -> Size m n -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
forall m n. (Eq n, Eq m) => Size m n -> Size m n -> Bool
/= :: Size m n -> Size m n -> Bool
$c/= :: forall m n. (Eq n, Eq m) => Size m n -> Size m n -> Bool
== :: Size m n -> Size m n -> Bool
$c== :: forall m n. (Eq n, Eq m) => Size m n -> Size m n -> Bool
Eq, Int -> Size m n -> ShowS
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
forall m n. (Show n, Show m) => Int -> Size m n -> ShowS
forall m n. (Show n, Show m) => [Size m n] -> ShowS
forall m n. (Show n, Show m) => Size m n -> String
showList :: [Size m n] -> ShowS
$cshowList :: forall m n. (Show n, Show m) => [Size m n] -> ShowS
show :: Size m n -> String
$cshow :: forall m n. (Show n, Show m) => Size m n -> String
showsPrec :: Int -> Size m n -> ShowS
$cshowsPrec :: forall m n. (Show n, Show m) => Int -> Size m n -> ShowS
Show, ReadPrec [Size m n]
ReadPrec (Size m n)
ReadS [Size m n]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
forall m n. (Read n, Read m) => ReadPrec [Size m n]
forall m n. (Read n, Read m) => ReadPrec (Size m n)
forall m n. (Read n, Read m) => Int -> ReadS (Size m n)
forall m n. (Read n, Read m) => ReadS [Size m n]
readListPrec :: ReadPrec [Size m n]
$creadListPrec :: forall m n. (Read n, Read m) => ReadPrec [Size m n]
readPrec :: ReadPrec (Size m n)
$creadPrec :: forall m n. (Read n, Read m) => ReadPrec (Size m n)
readList :: ReadS [Size m n]
$creadList :: forall m n. (Read n, Read m) => ReadS [Size m n]
readsPrec :: Int -> ReadS (Size m n)
$creadsPrec :: forall m n. (Read n, Read m) => Int -> ReadS (Size m n)
Read, forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
forall m n x. Rep (Size m n) x -> Size m n
forall m n x. Size m n -> Rep (Size m n) x
$cto :: forall m n x. Rep (Size m n) x -> Size m n
$cfrom :: forall m n x. Size m n -> Rep (Size m n) x
Generic)
instance (NFData m, NFData n) => NFData (Size m n)
-- | Convert inline size via given callback
mapSizeY :: (m -> mm) -> Size m n -> Size mm n
mapSizeY :: forall m mm n. (m -> mm) -> Size m n -> Size mm n
mapSizeY m -> mm
cb Size m n
self = forall m n. n -> m -> Size m n
Size (forall m n. Size m n -> n
inline Size m n
self) (m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> m
block Size m n
self)
-- | Convert block size via given callback
mapSizeX :: (n -> nn) -> Size m n -> Size m nn
mapSizeX :: forall n nn m. (n -> nn) -> Size m n -> Size m nn
mapSizeX n -> nn
cb Size m n
self = forall m n. n -> m -> Size m n
Size (n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> n
inline Size m n
self) (forall m n. Size m n -> m
block Size m n
self)

-- | A box with min & max bounds & surrounding borders. The CSS Box Model.
data PaddedBox m n = PaddedBox {
    -- | The minimum amount of pixels this box should take.
    forall m n. PaddedBox m n -> Size m n
min :: Size m n,
    -- | The maximum amount of pixels this box should take.
    forall m n. PaddedBox m n -> Size m n
max :: Size m n,
    -- | The ideal number of pixels this box should take.
    forall m n. PaddedBox m n -> Size Double Double
nat :: Size Double Double,
    -- | The amount of pixels this box should take.
    forall m n. PaddedBox m n -> Size m n
size :: Size m n,
    -- | The amount of space between the box & the border.
    forall m n. PaddedBox m n -> Border m n
padding :: Border m n,
    -- | The amount of space for the border.
    forall m n. PaddedBox m n -> Border m n
border :: Border m n,
    -- | The amount of space between the border & anything else.
    forall m n. PaddedBox m n -> Border m n
margin :: Border m n
} deriving (PaddedBox m n -> PaddedBox m n -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
forall m n. (Eq n, Eq m) => PaddedBox m n -> PaddedBox m n -> Bool
/= :: PaddedBox m n -> PaddedBox m n -> Bool
$c/= :: forall m n. (Eq n, Eq m) => PaddedBox m n -> PaddedBox m n -> Bool
== :: PaddedBox m n -> PaddedBox m n -> Bool
$c== :: forall m n. (Eq n, Eq m) => PaddedBox m n -> PaddedBox m n -> Bool
Eq, ReadPrec [PaddedBox m n]
ReadPrec (PaddedBox m n)
ReadS [PaddedBox m n]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
forall m n. (Read n, Read m) => ReadPrec [PaddedBox m n]
forall m n. (Read n, Read m) => ReadPrec (PaddedBox m n)
forall m n. (Read n, Read m) => Int -> ReadS (PaddedBox m n)
forall m n. (Read n, Read m) => ReadS [PaddedBox m n]
readListPrec :: ReadPrec [PaddedBox m n]
$creadListPrec :: forall m n. (Read n, Read m) => ReadPrec [PaddedBox m n]
readPrec :: ReadPrec (PaddedBox m n)
$creadPrec :: forall m n. (Read n, Read m) => ReadPrec (PaddedBox m n)
readList :: ReadS [PaddedBox m n]
$creadList :: forall m n. (Read n, Read m) => ReadS [PaddedBox m n]
readsPrec :: Int -> ReadS (PaddedBox m n)
$creadsPrec :: forall m n. (Read n, Read m) => Int -> ReadS (PaddedBox m n)
Read, Int -> PaddedBox m n -> ShowS
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
forall m n. (Show n, Show m) => Int -> PaddedBox m n -> ShowS
forall m n. (Show n, Show m) => [PaddedBox m n] -> ShowS
forall m n. (Show n, Show m) => PaddedBox m n -> String
showList :: [PaddedBox m n] -> ShowS
$cshowList :: forall m n. (Show n, Show m) => [PaddedBox m n] -> ShowS
show :: PaddedBox m n -> String
$cshow :: forall m n. (Show n, Show m) => PaddedBox m n -> String
showsPrec :: Int -> PaddedBox m n -> ShowS
$cshowsPrec :: forall m n. (Show n, Show m) => Int -> PaddedBox m n -> ShowS
Show, forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
forall m n x. Rep (PaddedBox m n) x -> PaddedBox m n
forall m n x. PaddedBox m n -> Rep (PaddedBox m n) x
$cto :: forall m n x. Rep (PaddedBox m n) x -> PaddedBox m n
$cfrom :: forall m n x. PaddedBox m n -> Rep (PaddedBox m n) x
Generic)
instance (NFData m, NFData n) => NFData (PaddedBox m n)
-- | An empty box, takes up nospace onscreen.
zeroBox :: PaddedBox Double Double
zeroBox :: PaddedBox Double Double
zeroBox = PaddedBox {
    min :: Size Double Double
min = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    max :: Size Double Double
max = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    nat :: Size Double Double
nat = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    size :: Size Double Double
size = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    padding :: Border Double Double
padding = forall m n. m -> m -> n -> n -> Border m n
Border Double
0 Double
0 Double
0 Double
0,
    border :: Border Double Double
border = forall m n. m -> m -> n -> n -> Border m n
Border Double
0 Double
0 Double
0 Double
0,
    margin :: Border Double Double
margin = forall m n. m -> m -> n -> n -> Border m n
Border Double
0 Double
0 Double
0 Double
0
  }
-- | A box which takes up all available space with no borders.
lengthBox :: PaddedBox Length Length
lengthBox :: PaddedBox Length Length
lengthBox = PaddedBox {
    min :: Size Length Length
min = forall m n. n -> m -> Size m n
Size Length
Auto Length
Auto,
    max :: Size Length Length
max = forall m n. n -> m -> Size m n
Size Length
Auto Length
Auto,
    nat :: Size Double Double
nat = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    size :: Size Length Length
size = forall m n. n -> m -> Size m n
Size Length
Auto Length
Auto,
    padding :: Border Length Length
padding = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero,
    border :: Border Length Length
border = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero,
    margin :: Border Length Length
margin = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero
  }

-- | Convert all sizes along the inline axis via given callback.
mapX' :: (n -> nn) -> PaddedBox m n -> PaddedBox m nn
mapX' :: forall n nn m. (n -> nn) -> PaddedBox m n -> PaddedBox m nn
mapX' n -> nn
cb PaddedBox {Size m n
Size Double Double
Border m n
margin :: Border m n
border :: Border m n
padding :: Border m n
size :: Size m n
nat :: Size Double Double
max :: Size m n
min :: Size m n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = PaddedBox {
    min :: Size m nn
min = forall m n. n -> m -> Size m n
Size (n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> n
inline Size m n
min) (forall m n. Size m n -> m
block Size m n
min),
    size :: Size m nn
size = forall m n. n -> m -> Size m n
Size (n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> n
inline Size m n
size) (forall m n. Size m n -> m
block Size m n
size),
    nat :: Size Double Double
nat = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    max :: Size m nn
max = forall m n. n -> m -> Size m n
Size (n -> nn
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> n
inline Size m n
max) (forall m n. Size m n -> m
block Size m n
max),
    padding :: Border m nn
padding = forall n nn m. (n -> nn) -> Border m n -> Border m nn
mapX n -> nn
cb Border m n
padding,
    border :: Border m nn
border = forall n nn m. (n -> nn) -> Border m n -> Border m nn
mapX n -> nn
cb Border m n
border,
    margin :: Border m nn
margin = forall n nn m. (n -> nn) -> Border m n -> Border m nn
mapX n -> nn
cb Border m n
margin
  }
-- | Convert all sizes along the block axis via given callback.
mapY' :: (m -> mm) -> PaddedBox m n -> PaddedBox mm n
mapY' :: forall m mm n. (m -> mm) -> PaddedBox m n -> PaddedBox mm n
mapY' m -> mm
cb PaddedBox {Size m n
Size Double Double
Border m n
margin :: Border m n
border :: Border m n
padding :: Border m n
size :: Size m n
nat :: Size Double Double
max :: Size m n
min :: Size m n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = PaddedBox {
    min :: Size mm n
min = forall m n. n -> m -> Size m n
Size (forall m n. Size m n -> n
inline Size m n
min) (m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> m
block Size m n
min),
    size :: Size mm n
size = forall m n. n -> m -> Size m n
Size (forall m n. Size m n -> n
inline Size m n
size) (m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> m
block Size m n
size),
    nat :: Size Double Double
nat = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
    max :: Size mm n
max = forall m n. n -> m -> Size m n
Size (forall m n. Size m n -> n
inline Size m n
max) (m -> mm
cb forall a b. (a -> b) -> a -> b
$ forall m n. Size m n -> m
block Size m n
max),
    padding :: Border mm n
padding = forall m mm n. (m -> mm) -> Border m n -> Border mm n
mapY m -> mm
cb Border m n
padding,
    border :: Border mm n
border = forall m mm n. (m -> mm) -> Border m n -> Border mm n
mapY m -> mm
cb Border m n
border,
    margin :: Border mm n
margin = forall m mm n. (m -> mm) -> Border m n -> Border mm n
mapY m -> mm
cb Border m n
margin
  }

-- | The total size along the inline axis including borders, etc.
width :: PaddedBox m a -> a
width PaddedBox {Size m a
Size Double Double
Border m a
margin :: Border m a
border :: Border m a
padding :: Border m a
size :: Size m a
nat :: Size Double Double
max :: Size m a
min :: Size m a
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> n
left Border m a
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> n
inline Size m a
size forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
margin
-- | The total size along the block axis, including borders, etc.
height :: PaddedBox a n -> a
height PaddedBox {Size a n
Size Double Double
Border a n
margin :: Border a n
border :: Border a n
padding :: Border a n
size :: Size a n
nat :: Size Double Double
max :: Size a n
min :: Size a n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> m
top Border a n
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> m
block Size a n
size forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
margin
-- | The total minimum size along the inline axis.
minWidth :: PaddedBox m a -> a
minWidth PaddedBox {Size m a
Size Double Double
Border m a
margin :: Border m a
border :: Border m a
padding :: Border m a
size :: Size m a
nat :: Size Double Double
max :: Size m a
min :: Size m a
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> n
left Border m a
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> n
inline Size m a
min forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
margin
-- | The total minimum size along the block axis.
minHeight :: PaddedBox a n -> a
minHeight PaddedBox {Size a n
Size Double Double
Border a n
margin :: Border a n
border :: Border a n
padding :: Border a n
size :: Size a n
nat :: Size Double Double
max :: Size a n
min :: Size a n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> m
top Border a n
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> m
block Size a n
min forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
margin
-- | The total maximum size along the inline axis.
maxWidth :: PaddedBox m a -> a
maxWidth PaddedBox {Size m a
Size Double Double
Border m a
margin :: Border m a
border :: Border m a
padding :: Border m a
size :: Size m a
nat :: Size Double Double
max :: Size m a
min :: Size m a
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> n
left Border m a
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> n
inline Size m a
max forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
margin
-- | The total maximum size along the block axis.
maxHeight :: PaddedBox a n -> a
maxHeight PaddedBox {Size a n
Size Double Double
Border a n
margin :: Border a n
border :: Border a n
padding :: Border a n
size :: Size a n
nat :: Size Double Double
max :: Size a n
min :: Size a n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> m
top Border a n
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
padding forall a. Num a => a -> a -> a
+
    forall m n. Size m n -> m
block Size a n
max forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
padding forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
margin

leftSpace :: PaddedBox m a -> a
leftSpace PaddedBox {Size m a
Size Double Double
Border m a
margin :: Border m a
border :: Border m a
padding :: Border m a
size :: Size m a
nat :: Size Double Double
max :: Size m a
min :: Size m a
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> n
left Border m a
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
left Border m a
padding
rightSpace :: PaddedBox m a -> a
rightSpace PaddedBox {Size m a
Size Double Double
Border m a
margin :: Border m a
border :: Border m a
padding :: Border m a
size :: Size m a
nat :: Size Double Double
max :: Size m a
min :: Size m a
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> n
right Border m a
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> n
right Border m a
padding
topSpace :: PaddedBox a n -> a
topSpace PaddedBox {Size a n
Size Double Double
Border a n
margin :: Border a n
border :: Border a n
padding :: Border a n
size :: Size a n
nat :: Size Double Double
max :: Size a n
min :: Size a n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> m
top Border a n
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
top Border a n
padding
bottomSpace :: PaddedBox a n -> a
bottomSpace PaddedBox {Size a n
Size Double Double
Border a n
margin :: Border a n
border :: Border a n
padding :: Border a n
size :: Size a n
nat :: Size Double Double
max :: Size a n
min :: Size a n
margin :: forall m n. PaddedBox m n -> Border m n
border :: forall m n. PaddedBox m n -> Border m n
padding :: forall m n. PaddedBox m n -> Border m n
size :: forall m n. PaddedBox m n -> Size m n
nat :: forall m n. PaddedBox m n -> Size Double Double
max :: forall m n. PaddedBox m n -> Size m n
min :: forall m n. PaddedBox m n -> Size m n
..} = forall m n. Border m n -> m
bottom Border a n
margin forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
border forall a. Num a => a -> a -> a
+ forall m n. Border m n -> m
bottom Border a n
padding
hSpace :: PaddedBox m a -> a
hSpace PaddedBox m a
self = forall {a} {m}. Num a => PaddedBox m a -> a
leftSpace PaddedBox m a
self forall a. Num a => a -> a -> a
+ forall {a} {m}. Num a => PaddedBox m a -> a
rightSpace PaddedBox m a
self
vSpace :: PaddedBox a n -> a
vSpace PaddedBox a n
self = forall {a} {n}. Num a => PaddedBox a n -> a
topSpace PaddedBox a n
self forall a. Num a => a -> a -> a
+ forall {a} {n}. Num a => PaddedBox a n -> a
bottomSpace PaddedBox a n
self

-- | A partially-computed length value.
data Length = Pixels Double -- ^ Absolute number of device pixels.
        | Percent Double -- ^ Multiplier by container width.
        | Auto -- ^ Use normal layout computations.
        | Preferred -- ^ Use computed preferred width.
        | Min -- ^ Use minimum legible width.
        deriving (Length -> Length -> Bool
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: Length -> Length -> Bool
$c/= :: Length -> Length -> Bool
== :: Length -> Length -> Bool
$c== :: Length -> Length -> Bool
Eq, ReadPrec [Length]
ReadPrec Length
Int -> ReadS Length
ReadS [Length]
forall a.
(Int -> ReadS a)
-> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
readListPrec :: ReadPrec [Length]
$creadListPrec :: ReadPrec [Length]
readPrec :: ReadPrec Length
$creadPrec :: ReadPrec Length
readList :: ReadS [Length]
$creadList :: ReadS [Length]
readsPrec :: Int -> ReadS Length
$creadsPrec :: Int -> ReadS Length
Read, Int -> Length -> ShowS
[Length] -> ShowS
Length -> String
forall a.
(Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
showList :: [Length] -> ShowS
$cshowList :: [Length] -> ShowS
show :: Length -> String
$cshow :: Length -> String
showsPrec :: Int -> Length -> ShowS
$cshowsPrec :: Int -> Length -> ShowS
Show, forall x. Rep Length x -> Length
forall x. Length -> Rep Length x
forall a.
(forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
$cto :: forall x. Rep Length x -> Length
$cfrom :: forall x. Length -> Rep Length x
Generic)
instance NFData Length

-- | Convert a length given the container's width. Filling in 0 for keywords.
-- If you wish for keywords to be handled differently, callers need to compute
-- that themselves.
lowerLength :: Double -> Length -> Double
lowerLength :: Double -> Length -> Double
lowerLength Double
_ (Pixels Double
x) = Double
x
lowerLength Double
outerwidth (Percent Double
x) = Double
x forall a. Num a => a -> a -> a
* Double
outerwidth
lowerLength Double
_ Length
_ = Double
0

-- | Replace keywords with a given number of pixels.
-- Useful for avoiding messing up percentage calculations in later processing.
mapAuto :: Double -> Length -> Length
mapAuto Double
x Length
Auto = Double -> Length
Pixels Double
x
mapAuto Double
x Length
Preferred = Double -> Length
Pixels Double
x
mapAuto Double
x Length
Min = Double -> Length
Pixels Double
x
mapAuto Double
_ Length
x = Length
x

class Zero a where
    -- | Return the empty (or zero) value for a CatTrap geometric type.
    zero :: a

instance Zero Double where zero :: Double
zero = Double
0
instance Zero Length where zero :: Length
zero = Double -> Length
Pixels Double
0
instance (Zero m, Zero n) => Zero (PaddedBox m n) where
    zero :: PaddedBox m n
zero = PaddedBox {
        min :: Size m n
min = forall m n. n -> m -> Size m n
Size forall a. Zero a => a
zero forall a. Zero a => a
zero,
        max :: Size m n
max = forall m n. n -> m -> Size m n
Size forall a. Zero a => a
zero forall a. Zero a => a
zero,
        nat :: Size Double Double
nat = forall m n. n -> m -> Size m n
Size Double
0 Double
0,
        size :: Size m n
size = forall m n. n -> m -> Size m n
Size forall a. Zero a => a
zero forall a. Zero a => a
zero,
        padding :: Border m n
padding = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero,
        border :: Border m n
border = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero,
        margin :: Border m n
margin = forall m n. m -> m -> n -> n -> Border m n
Border forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero forall a. Zero a => a
zero
    }

class CastDouble a where
    -- | Convert a double to a double or length.
    fromDouble :: Double -> a
    -- | Convert a double or length to a double.
    toDouble :: a -> Double

instance CastDouble Double where
    fromDouble :: Double -> Double
fromDouble = forall a. a -> a
id
    toDouble :: Double -> Double
toDouble = forall a. a -> a
id
instance CastDouble Length where
    fromDouble :: Double -> Length
fromDouble = Double -> Length
Pixels
    toDouble :: Length -> Double
toDouble = Double -> Length -> Double
lowerLength Double
0