Safe Haskell	Safe-Inferred
Language	Haskell2010

Potato.Flow.RenderCache

Synopsis

toPoint :: LBox -> Int -> XY
toIndex :: LBox -> XY -> Int
toIndexSafe :: LBox -> XY -> Maybe Int
type MWidePChar = (Int8, PChar)
emptyMWidePChar :: MWidePChar
data PreRender = PreRender (Vector MWidePChar) LBox
emptyPreRender :: PreRender
preRender_lookup :: HasCallStack => PreRender -> XY -> MWidePChar
data OwlItemCache
- = OwlItemCache_Line LineAnchorsForRender PreRender
- | OwlItemCache_Generic PreRender
owlItemCache_preRender :: OwlItemCache -> Maybe PreRender
newtype RenderCache = RenderCache {
- unRenderCache :: REltIdMap OwlItemCache
}
emptyRenderCache :: RenderCache
renderCache_clearAtKeys :: RenderCache -> [REltId] -> RenderCache
renderCache_lookup :: RenderCache -> REltId -> Maybe OwlItemCache
makePreRender :: forall a. HasOwlTree a => a -> SEltDrawer -> PreRender

Documentation

toPoint :: LBox -> Int -> XY Source #

input index must be contained in the box

toIndex :: LBox -> XY -> Int Source #

input XY point must be contained in the box

toIndexSafe :: LBox -> XY -> Maybe Int Source #

same as above but does bounds checking

type MWidePChar = (Int8, PChar) Source #

WidePChar represents part of a PChar that the Int8 parameter is offset from where the PChar originates from, so for example 😱 <- PChar 01 <- Int8 offset parameter

1 value for offset means there is no character in the space, the PChar value is ignored in this case

emptyMWidePChar :: MWidePChar Source #

data PreRender Source #

the LBox may exceed the logical bounding box of the object that is being represented if that object contains wide chars

Constructors

PreRender (Vector MWidePChar) LBox

Instances

Instances details

Show PreRender Source #
Instance details Defined in Potato.Flow.RenderCache Methods showsPrec :: Int -> PreRender -> ShowS # show :: PreRender -> String # showList :: [PreRender] -> ShowS #

emptyPreRender :: PreRender Source #

preRender_lookup :: HasCallStack => PreRender -> XY -> MWidePChar Source #

data OwlItemCache Source #

Constructors

OwlItemCache_Line LineAnchorsForRender PreRender
OwlItemCache_Generic PreRender

Instances

Instances details

Show OwlItemCache Source #
Instance details Defined in Potato.Flow.RenderCache Methods showsPrec :: Int -> OwlItemCache -> ShowS # show :: OwlItemCache -> String # showList :: [OwlItemCache] -> ShowS #

owlItemCache_preRender :: OwlItemCache -> Maybe PreRender Source #

newtype RenderCache Source #

Constructors

RenderCache
Fields unRenderCache :: REltIdMap OwlItemCache

Instances

Instances details

Show RenderCache Source #
Instance details Defined in Potato.Flow.RenderCache Methods showsPrec :: Int -> RenderCache -> ShowS # show :: RenderCache -> String # showList :: [RenderCache] -> ShowS #

emptyRenderCache :: RenderCache Source #

renderCache_clearAtKeys :: RenderCache -> [REltId] -> RenderCache Source #

renderCache_lookup :: RenderCache -> REltId -> Maybe OwlItemCache Source #

makePreRender :: forall a. HasOwlTree a => a -> SEltDrawer -> PreRender Source #