Safe Haskell	None
Language	GHC2024

NanoUI.Id

Description

Widget ids and the id context they are derived from. See the "Widget identity" section of NanoUI for how ids are assigned.

Synopsis

newtype WidgetId = WidgetId Word64
data IdContext = IdContext {
- currentId :: !Word64
- siblingId :: !Word64
}
initialIdContext :: IdContext
idContextWidgetId :: IdContext -> WidgetId
widgetId :: HasCallStack => WidgetId
hashWidgetId :: WidgetId -> Word64
fnv1a :: String -> Word64
mix64 :: Word64 -> Word64 -> Word64
mixFnv :: Word64 -> Word64 -> Word64
scopeTag :: Word64
enterScope :: Word64 -> IdContext -> (IdContext, IdContext)
enterKeyed :: Word64 -> IdContext -> (IdContext, IdContext)

Documentation

newtype WidgetId Source #

Constructors

WidgetId Word64

Instances

Instances details

Eq WidgetId Source #
Instance details Defined in NanoUI.Id Methods (==) :: WidgetId -> WidgetId -> Bool # (/=) :: WidgetId -> WidgetId -> Bool #
Ord WidgetId Source #
Instance details Defined in NanoUI.Id Methods compare :: WidgetId -> WidgetId -> Ordering # (<) :: WidgetId -> WidgetId -> Bool # (<=) :: WidgetId -> WidgetId -> Bool # (>) :: WidgetId -> WidgetId -> Bool # (>=) :: WidgetId -> WidgetId -> Bool # max :: WidgetId -> WidgetId -> WidgetId # min :: WidgetId -> WidgetId -> WidgetId #
Show WidgetId Source #
Instance details Defined in NanoUI.Id Methods showsPrec :: Int -> WidgetId -> ShowS # show :: WidgetId -> String # showList :: [WidgetId] -> ShowS #
Hashable WidgetId Source #
Instance details Defined in NanoUI.Id Methods hashWithSalt :: Int -> WidgetId -> Int # hash :: WidgetId -> Int #
Prim WidgetId Source #
Instance details Defined in NanoUI.Id Methods sizeOfType# :: Proxy WidgetId -> Int# # sizeOf# :: WidgetId -> Int# # alignmentOfType# :: Proxy WidgetId -> Int# # alignment# :: WidgetId -> Int# # indexByteArray# :: ByteArray# -> Int# -> WidgetId # readByteArray# :: MutableByteArray# s -> Int# -> State# s -> (# State# s, WidgetId #) # writeByteArray# :: MutableByteArray# s -> Int# -> WidgetId -> State# s -> State# s # setByteArray# :: MutableByteArray# s -> Int# -> Int# -> WidgetId -> State# s -> State# s # indexOffAddr# :: Addr# -> Int# -> WidgetId # readOffAddr# :: Addr# -> Int# -> State# s -> (# State# s, WidgetId #) # writeOffAddr# :: Addr# -> Int# -> WidgetId -> State# s -> State# s # setOffAddr# :: Addr# -> Int# -> Int# -> WidgetId -> State# s -> State# s #

data IdContext Source #

Constructors

IdContext
Fields currentId :: !Word64 siblingId :: !Word64

Instances

Instances details

Eq IdContext Source #
Instance details Defined in NanoUI.Id Methods (==) :: IdContext -> IdContext -> Bool # (/=) :: IdContext -> IdContext -> Bool #
Show IdContext Source #
Instance details Defined in NanoUI.Id Methods showsPrec :: Int -> IdContext -> ShowS # show :: IdContext -> String # showList :: [IdContext] -> ShowS #

initialIdContext :: IdContext Source #

idContextWidgetId :: IdContext -> WidgetId Source #

Id of the next sibling in this context. A zero hash becomes 1, so WidgetId 0 never names a real widget.

widgetId :: HasCallStack => WidgetId Source #

hashWidgetId :: WidgetId -> Word64 Source #

fnv1a :: String -> Word64 Source #

mix64 :: Word64 -> Word64 -> Word64 Source #

mixFnv :: Word64 -> Word64 -> Word64 Source #

scopeTag :: Word64 Source #

enterScope :: Word64 -> IdContext -> (IdContext, IdContext) Source #

enterKeyed :: Word64 -> IdContext -> (IdContext, IdContext) Source #