nanovg-0.8.1.0: Haskell bindings for nanovg
Safe HaskellNone
LanguageHaskell2010

NanoVG.Internal.Transformation

Synopsis

Documentation

newtype Transformation Source #

Affine matrix

[sx kx tx]
[ky sy ty]
[ 0  0  1]

Constructors

Transformation (M23 CFloat) 

Instances

Instances details
Eq Transformation Source # 
Instance details

Defined in NanoVG.Internal.Transformation

Methods

(==) :: Transformation -> Transformation -> Bool #

(/=) :: Transformation -> Transformation -> Bool #

Ord Transformation Source # 
Instance details

Defined in NanoVG.Internal.Transformation

Methods

compare :: Transformation -> Transformation -> Ordering #

(<) :: Transformation -> Transformation -> Bool #

(<=) :: Transformation -> Transformation -> Bool #

(>) :: Transformation -> Transformation -> Bool #

(>=) :: Transformation -> Transformation -> Bool #

max :: Transformation -> Transformation -> Transformation #

min :: Transformation -> Transformation -> Transformation #

Read Transformation Source # 
Instance details

Defined in NanoVG.Internal.Transformation

Methods

readsPrec :: Int -> ReadS Transformation #

readList :: ReadS [Transformation] #

readPrec :: ReadPrec Transformation #

readListPrec :: ReadPrec [Transformation] #

Show Transformation Source # 
Instance details

Defined in NanoVG.Internal.Transformation

Methods

showsPrec :: Int -> Transformation -> ShowS #

show :: Transformation -> String #

showList :: [Transformation] -> ShowS #

Storable Transformation Source # 
Instance details

Defined in NanoVG.Internal.Transformation

Methods

sizeOf :: Transformation -> Int #

alignment :: Transformation -> Int #

peekElemOff :: Ptr Transformation -> Int -> IO Transformation #

pokeElemOff :: Ptr Transformation -> Int -> Transformation -> IO () #

peekByteOff :: Ptr b -> Int -> IO Transformation #

pokeByteOff :: Ptr b -> Int -> Transformation -> IO () #

peek :: Ptr Transformation -> IO Transformation #

poke :: Ptr Transformation -> Transformation -> IO () #

resetTransform :: Context -> IO () Source #

Resets current transform to a identity matrix.

transform :: Context -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> IO () Source #

Premultiplies current coordinate system by specified matrix. The parameters are interpreted as matrix as follows:

[a c e]
[b d f]
[0 0 1]

translate :: Context -> CFloat -> CFloat -> IO () Source #

Translates current coordinate system.

rotate :: Context -> CFloat -> IO () Source #

Rotates current coordinate system. Angle is specified in radians.

skewX :: Context -> CFloat -> IO () Source #

Skews the current coordinate system along X axis. Angle is specified in radians.

skewY :: Context -> CFloat -> IO () Source #

Skews the current coordinate system along Y axis. Angle is specified in radians.

scale :: Context -> CFloat -> CFloat -> IO () Source #

Scales the current coordinate system.

peekTransformation :: Ptr CFloat -> IO Transformation Source #

allocaTransformation :: (Ptr CFloat -> IO b) -> IO b Source #

withTransformation :: Transformation -> (Ptr CFloat -> IO b) -> IO b Source #

currentTransform :: Context -> IO Transformation Source #

Returns the current transformation matrix.

transformIdentity :: IO Transformation Source #

Sets the transform to identity matrix.

transformTranslate :: CFloat -> CFloat -> IO Transformation Source #

Sets the transform to translation matrix matrix.

transformScale :: CFloat -> CFloat -> IO Transformation Source #

Sets the transform to scale matrix.

transformRotate :: CFloat -> IO Transformation Source #

Sets the transform to rotate matrix. Angle is specified in radians.

transformSkewX :: CFloat -> IO Transformation Source #

Sets the transform to skew-x matrix. Angle is specified in radians.

transformSkewY :: CFloat -> IO Transformation Source #

Sets the transform to skew-y matrix. Angle is specified in radians.

transformMultiply :: Transformation -> Transformation -> IO Transformation Source #

Sets the transform to the result of multiplication of two transforms, of A = A*B.

transformPremultiply :: Transformation -> Transformation -> IO Transformation Source #

Sets the transform to the result of multiplication of two transforms, of A = B*A.

transformInverse :: Transformation -> IO Transformation Source #

Sets the destination to inverse of specified transform. Returns 1 if the inverse could be calculated, else 0.

transformPoint :: Transformation -> CFloat -> CFloat -> (CFloat, CFloat) Source #

Transform a point by given transform.

degToRad :: CFloat -> CFloat Source #

Converts degrees to radians.

radToDeg :: CFloat -> CFloat Source #

Converts radians to degrees.

resetTransform'_ :: Context -> IO () Source #

transform'_ :: Context -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> IO () Source #

translate'_ :: Context -> CFloat -> CFloat -> IO () Source #

rotate'_ :: Context -> CFloat -> IO () Source #

skewX'_ :: Context -> CFloat -> IO () Source #

skewY'_ :: Context -> CFloat -> IO () Source #

scale'_ :: Context -> CFloat -> CFloat -> IO () Source #

currentTransform'_ :: Context -> Ptr CFloat -> IO () Source #

transformIdentity'_ :: Ptr CFloat -> IO () Source #

transformTranslate'_ :: Ptr CFloat -> CFloat -> CFloat -> IO () Source #

transformScale'_ :: Ptr CFloat -> CFloat -> CFloat -> IO () Source #

transformRotate'_ :: Ptr CFloat -> CFloat -> IO () Source #

transformSkewX'_ :: Ptr CFloat -> CFloat -> IO () Source #

transformSkewY'_ :: Ptr CFloat -> CFloat -> IO () Source #

transformMultiply'_ :: Ptr CFloat -> Ptr CFloat -> IO () Source #

transformPremultiply'_ :: Ptr CFloat -> Ptr CFloat -> IO () Source #

transformInverse'_ :: Ptr CFloat -> Ptr CFloat -> IO CInt Source #

transformPoint'_ :: Ptr CFloat -> Ptr CFloat -> Ptr CFloat -> CFloat -> CFloat -> IO () Source #

degToRad'_ :: CFloat -> IO CFloat Source #

radToDeg'_ :: CFloat -> IO CFloat Source #