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Graphics.Rendering.OpenGL.GL.StateVar

Portability | portable
Stability | stable
Maintainer | sven.panne@aedion.de

Description
Synopsis

class HasGetter g where

get :: g a -> IO a

data GettableStateVar a
makeGettableStateVar :: IO a -> GettableStateVar a
class HasSetter s where

($=) :: s a -> a -> IO ()

set :: [IO ()] -> IO ()
data SettableStateVar a
makeSettableStateVar :: (a -> IO ()) -> SettableStateVar a
data StateVar a
makeStateVar :: IO a -> (a -> IO ()) -> StateVar a
($~) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO ()
($=!) :: HasSetter s => s a -> a -> IO ()
($~!) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO ()

Documentation
class HasGetter g where

Methods

get :: g a -> IO a

Instances

HasGetter GettableStateVar
HasGetter IORef
HasGetter StateVar

data GettableStateVar a

Instances

HasGetter GettableStateVar

makeGettableStateVar :: IO a -> GettableStateVar a
class HasSetter s where

Methods

($=) :: s a -> a -> IO ()

Instances

HasSetter IORef
HasSetter SettableStateVar
HasSetter StateVar

set :: [IO ()] -> IO ()
data SettableStateVar a

Instances

HasSetter SettableStateVar

makeSettableStateVar :: (a -> IO ()) -> SettableStateVar a
data StateVar a

Instances

HasGetter StateVar
HasSetter StateVar

makeStateVar :: IO a -> (a -> IO ()) -> StateVar a
($~) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO ()
A modificator convenience function.
($=!) :: HasSetter s => s a -> a -> IO ()
A strict variant of `$=`.
($~!) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO ()
A strict variant of `$~`.
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