| HOpenGL Libraries (OpenGL package) | Contents | Index
Graphics.Rendering.OpenGL.GL.StateVar |
Portability | portable
Stability | provisional
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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