HOpenGL Libraries (OpenGL package)ContentsIndex
Graphics.Rendering.OpenGL.GL.StateVar
Portabilityportable
Stabilityprovisional
Maintainersven.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
show/hide Instances
data GettableStateVar a
show/hide Instances
makeGettableStateVar :: IO a -> GettableStateVar a
class HasSetter s where
Methods
($=) :: s a -> a -> IO ()
show/hide Instances
set :: [IO ()] -> IO ()
data SettableStateVar a
show/hide Instances
makeSettableStateVar :: (a -> IO ()) -> SettableStateVar a
data StateVar a
show/hide Instances
makeStateVar :: IO a -> (a -> IO ()) -> StateVar a
($~) :: (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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