OpenGL-2.2.1.1: A binding for the OpenGL graphics system Source code Contents Index

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 Source

Methods get :: g a -> IO a Source Instances HasGetter GettableStateVar HasGetter IORef HasGetter StateVar

data GettableStateVar a Source

Instances HasGetter GettableStateVar

makeGettableStateVar :: IO a -> GettableStateVar a Source

class HasSetter s where Source

Methods ($=) :: s a -> a -> IO () Source Instances HasSetter IORef HasSetter SettableStateVar HasSetter StateVar

set :: [IO ()] -> IO () Source

data SettableStateVar a Source

Instances HasSetter SettableStateVar

makeSettableStateVar :: (a -> IO ()) -> SettableStateVar a Source

data StateVar a Source

Instances HasGetter StateVar HasSetter StateVar

makeStateVar :: IO a -> (a -> IO ()) -> StateVar a Source

($~) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO () Source

A modificator convenience function.

($=!) :: HasSetter s => s a -> a -> IO () Source

A strict variant of $=.

($~!) :: (HasGetter v, HasSetter v) => v a -> (a -> a) -> IO () Source

A strict variant of $~.

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