GI.HarfBuzz.Callbacks

Signals

BufferMessageFuncT

type BufferMessageFuncT

Arguments

 = BufferT

buffer: An BufferT to work upon

-> FontT

font: The FontT the buffer is shaped with

-> Text

message: NULL-terminated message passed to the function

-> IO Int32

Returns: true to perform the shaping step, false to skip it.

A callback method for BufferT. The method gets called with the BufferT it was set on, the FontT the buffer is shaped with and a message describing what step of the shaping process will be performed. Returning false from this method will skip this shaping step and move to the next one.

Since: 1.1.3

type BufferMessageFuncT_WithClosures

Arguments

 = BufferT

buffer: An BufferT to work upon

-> FontT

font: The FontT the buffer is shaped with

-> Text

message: NULL-terminated message passed to the function

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Int32

Returns: true to perform the shaping step, false to skip it.

A callback method for BufferT. The method gets called with the BufferT it was set on, the FontT the buffer is shaped with and a message describing what step of the shaping process will be performed. Returning false from this method will skip this shaping step and move to the next one.

Since: 1.1.3

type C_BufferMessageFuncT = Ptr BufferT -> Ptr FontT -> CString -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

drop_closures_BufferMessageFuncT :: BufferMessageFuncT -> BufferMessageFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_BufferMessageFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_BufferMessageFuncT

-> BufferT

buffer: An BufferT to work upon

-> FontT

font: The FontT the buffer is shaped with

-> Text

message: NULL-terminated message passed to the function

-> Ptr ()

userData: User data pointer passed by the caller

-> m Int32

Returns: true to perform the shaping step, false to skip it.

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_BufferMessageFuncT :: MonadIO m => BufferMessageFuncT -> m (GClosure C_BufferMessageFuncT)

Wrap the callback into a GClosure.

mk_BufferMessageFuncT :: C_BufferMessageFuncT -> IO (FunPtr C_BufferMessageFuncT)

Generate a function pointer callable from C code, from a C_BufferMessageFuncT.

noBufferMessageFuncT :: Maybe BufferMessageFuncT

A convenience synonym for Nothing :: Maybe BufferMessageFuncT.

noBufferMessageFuncT_WithClosures :: Maybe BufferMessageFuncT_WithClosures

A convenience synonym for Nothing :: Maybe BufferMessageFuncT_WithClosures.

wrap_BufferMessageFuncT :: Maybe (Ptr (FunPtr C_BufferMessageFuncT)) -> BufferMessageFuncT_WithClosures -> C_BufferMessageFuncT

Wrap a BufferMessageFuncT into a C_BufferMessageFuncT.

ColorLineGetColorStopsFuncT

type C_ColorLineGetColorStopsFuncT = Ptr ColorLineT -> Ptr () -> Word32 -> Word32 -> Ptr ColorStopT -> Ptr () -> IO Word32

Type for the callback on the (unwrapped) C side.

type ColorLineGetColorStopsFuncT

Arguments

 = ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> Word32

start: the index of the first color stop to return

-> [ColorStopT]

colorStops: Array of ColorStopT to populate

-> IO (Word32, [ColorStopT])

Returns: the total number of color stops in colorLine

A virtual method for the ColorLineT to fetch color stops.

Since: 7.0.0

type ColorLineGetColorStopsFuncT_WithClosures

Arguments

 = ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> Word32

start: the index of the first color stop to return

-> [ColorStopT]

colorStops: Array of ColorStopT to populate

-> Ptr ()

userData: the data accompanying this method

-> IO (Word32, [ColorStopT])

Returns: the total number of color stops in colorLine

A virtual method for the ColorLineT to fetch color stops.

Since: 7.0.0

drop_closures_ColorLineGetColorStopsFuncT :: ColorLineGetColorStopsFuncT -> ColorLineGetColorStopsFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_ColorLineGetColorStopsFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_ColorLineGetColorStopsFuncT

-> ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> Word32

start: the index of the first color stop to return

-> [ColorStopT]

colorStops: Array of ColorStopT to populate

-> Ptr ()

userData: the data accompanying this method

-> m (Word32, [ColorStopT])

Returns: the total number of color stops in colorLine

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ColorLineGetColorStopsFuncT :: MonadIO m => ColorLineGetColorStopsFuncT -> m (GClosure C_ColorLineGetColorStopsFuncT)

Wrap the callback into a GClosure.

mk_ColorLineGetColorStopsFuncT :: C_ColorLineGetColorStopsFuncT -> IO (FunPtr C_ColorLineGetColorStopsFuncT)

Generate a function pointer callable from C code, from a C_ColorLineGetColorStopsFuncT.

noColorLineGetColorStopsFuncT :: Maybe ColorLineGetColorStopsFuncT

A convenience synonym for Nothing :: Maybe ColorLineGetColorStopsFuncT.

noColorLineGetColorStopsFuncT_WithClosures :: Maybe ColorLineGetColorStopsFuncT_WithClosures

A convenience synonym for Nothing :: Maybe ColorLineGetColorStopsFuncT_WithClosures.

wrap_ColorLineGetColorStopsFuncT :: Maybe (Ptr (FunPtr C_ColorLineGetColorStopsFuncT)) -> ColorLineGetColorStopsFuncT_WithClosures -> C_ColorLineGetColorStopsFuncT

Wrap a ColorLineGetColorStopsFuncT into a C_ColorLineGetColorStopsFuncT.

ColorLineGetExtendFuncT

type C_ColorLineGetExtendFuncT = Ptr ColorLineT -> Ptr () -> Ptr () -> IO CUInt

Type for the callback on the (unwrapped) C side.

type ColorLineGetExtendFuncT

Arguments

 = ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> IO PaintExtendT

Returns: the extend mode of colorLine

A virtual method for the hbColorLineT to fetches the extend mode.

Since: 7.0.0

type ColorLineGetExtendFuncT_WithClosures

Arguments

 = ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> Ptr ()

userData: the data accompanying this method

-> IO PaintExtendT

Returns: the extend mode of colorLine

A virtual method for the hbColorLineT to fetches the extend mode.

Since: 7.0.0

drop_closures_ColorLineGetExtendFuncT :: ColorLineGetExtendFuncT -> ColorLineGetExtendFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_ColorLineGetExtendFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_ColorLineGetExtendFuncT

-> ColorLineT

colorLine: a ColorLineT object

-> Ptr ()

colorLineData: the data accompanying colorLine

-> Ptr ()

userData: the data accompanying this method

-> m PaintExtendT

Returns: the extend mode of colorLine

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ColorLineGetExtendFuncT :: MonadIO m => ColorLineGetExtendFuncT -> m (GClosure C_ColorLineGetExtendFuncT)

Wrap the callback into a GClosure.

mk_ColorLineGetExtendFuncT :: C_ColorLineGetExtendFuncT -> IO (FunPtr C_ColorLineGetExtendFuncT)

Generate a function pointer callable from C code, from a C_ColorLineGetExtendFuncT.

noColorLineGetExtendFuncT :: Maybe ColorLineGetExtendFuncT

A convenience synonym for Nothing :: Maybe ColorLineGetExtendFuncT.

noColorLineGetExtendFuncT_WithClosures :: Maybe ColorLineGetExtendFuncT_WithClosures

A convenience synonym for Nothing :: Maybe ColorLineGetExtendFuncT_WithClosures.

wrap_ColorLineGetExtendFuncT :: Maybe (Ptr (FunPtr C_ColorLineGetExtendFuncT)) -> ColorLineGetExtendFuncT_WithClosures -> C_ColorLineGetExtendFuncT

Wrap a ColorLineGetExtendFuncT into a C_ColorLineGetExtendFuncT.

DestroyFuncT

type C_DestroyFuncT = Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DestroyFuncT = IO ()

A virtual method for destroy user-data callbacks.

type DestroyFuncT_WithClosures

Arguments

 = Ptr ()

userData: the data to be destroyed

-> IO ()

A virtual method for destroy user-data callbacks.

drop_closures_DestroyFuncT :: DestroyFuncT -> DestroyFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DestroyFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DestroyFuncT

-> Ptr ()

userData: the data to be destroyed

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DestroyFuncT :: MonadIO m => DestroyFuncT -> m (GClosure C_DestroyFuncT)

Wrap the callback into a GClosure.

mk_DestroyFuncT :: C_DestroyFuncT -> IO (FunPtr C_DestroyFuncT)

Generate a function pointer callable from C code, from a C_DestroyFuncT.

noDestroyFuncT :: Maybe DestroyFuncT

A convenience synonym for Nothing :: Maybe DestroyFuncT.

noDestroyFuncT_WithClosures :: Maybe DestroyFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DestroyFuncT_WithClosures.

wrap_DestroyFuncT :: Maybe (Ptr (FunPtr C_DestroyFuncT)) -> DestroyFuncT_WithClosures -> C_DestroyFuncT

Wrap a DestroyFuncT into a C_DestroyFuncT.

DrawClosePathFuncT

type C_DrawClosePathFuncT = Ptr DrawFuncsT -> Ptr () -> Ptr DrawStateT -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DrawClosePathFuncT

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> IO ()

A virtual method for the DrawFuncsT to perform a "close-path" draw operation.

Since: 4.0.0

type DrawClosePathFuncT_WithClosures

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Ptr ()

userData: User data pointer passed to drawFuncsSetClosePathFunc

-> IO ()

A virtual method for the DrawFuncsT to perform a "close-path" draw operation.

Since: 4.0.0

drop_closures_DrawClosePathFuncT :: DrawClosePathFuncT -> DrawClosePathFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DrawClosePathFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DrawClosePathFuncT

-> DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Ptr ()

userData: User data pointer passed to drawFuncsSetClosePathFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DrawClosePathFuncT :: MonadIO m => DrawClosePathFuncT -> m (GClosure C_DrawClosePathFuncT)

Wrap the callback into a GClosure.

mk_DrawClosePathFuncT :: C_DrawClosePathFuncT -> IO (FunPtr C_DrawClosePathFuncT)

Generate a function pointer callable from C code, from a C_DrawClosePathFuncT.

noDrawClosePathFuncT :: Maybe DrawClosePathFuncT

A convenience synonym for Nothing :: Maybe DrawClosePathFuncT.

noDrawClosePathFuncT_WithClosures :: Maybe DrawClosePathFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DrawClosePathFuncT_WithClosures.

wrap_DrawClosePathFuncT :: Maybe (Ptr (FunPtr C_DrawClosePathFuncT)) -> DrawClosePathFuncT_WithClosures -> C_DrawClosePathFuncT

Wrap a DrawClosePathFuncT into a C_DrawClosePathFuncT.

DrawCubicToFuncT

type C_DrawCubicToFuncT = Ptr DrawFuncsT -> Ptr () -> Ptr DrawStateT -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DrawCubicToFuncT

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

control1X: X component of first control point

-> Float

control1Y: Y component of first control point

-> Float

control2X: X component of second control point

-> Float

control2Y: Y component of second control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> IO ()

A virtual method for the DrawFuncsT to perform a "cubic-to" draw operation.

Since: 4.0.0

type DrawCubicToFuncT_WithClosures

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

control1X: X component of first control point

-> Float

control1Y: Y component of first control point

-> Float

control2X: X component of second control point

-> Float

control2Y: Y component of second control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetCubicToFunc

-> IO ()

A virtual method for the DrawFuncsT to perform a "cubic-to" draw operation.

Since: 4.0.0

drop_closures_DrawCubicToFuncT :: DrawCubicToFuncT -> DrawCubicToFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DrawCubicToFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DrawCubicToFuncT

-> DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

control1X: X component of first control point

-> Float

control1Y: Y component of first control point

-> Float

control2X: X component of second control point

-> Float

control2Y: Y component of second control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetCubicToFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DrawCubicToFuncT :: MonadIO m => DrawCubicToFuncT -> m (GClosure C_DrawCubicToFuncT)

Wrap the callback into a GClosure.

mk_DrawCubicToFuncT :: C_DrawCubicToFuncT -> IO (FunPtr C_DrawCubicToFuncT)

Generate a function pointer callable from C code, from a C_DrawCubicToFuncT.

noDrawCubicToFuncT :: Maybe DrawCubicToFuncT

A convenience synonym for Nothing :: Maybe DrawCubicToFuncT.

noDrawCubicToFuncT_WithClosures :: Maybe DrawCubicToFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DrawCubicToFuncT_WithClosures.

wrap_DrawCubicToFuncT :: Maybe (Ptr (FunPtr C_DrawCubicToFuncT)) -> DrawCubicToFuncT_WithClosures -> C_DrawCubicToFuncT

Wrap a DrawCubicToFuncT into a C_DrawCubicToFuncT.

DrawLineToFuncT

type C_DrawLineToFuncT = Ptr DrawFuncsT -> Ptr () -> Ptr DrawStateT -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DrawLineToFuncT

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> IO ()

A virtual method for the DrawFuncsT to perform a "line-to" draw operation.

Since: 4.0.0

type DrawLineToFuncT_WithClosures

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetLineToFunc

-> IO ()

A virtual method for the DrawFuncsT to perform a "line-to" draw operation.

Since: 4.0.0

drop_closures_DrawLineToFuncT :: DrawLineToFuncT -> DrawLineToFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DrawLineToFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DrawLineToFuncT

-> DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetLineToFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DrawLineToFuncT :: MonadIO m => DrawLineToFuncT -> m (GClosure C_DrawLineToFuncT)

Wrap the callback into a GClosure.

mk_DrawLineToFuncT :: C_DrawLineToFuncT -> IO (FunPtr C_DrawLineToFuncT)

Generate a function pointer callable from C code, from a C_DrawLineToFuncT.

noDrawLineToFuncT :: Maybe DrawLineToFuncT

A convenience synonym for Nothing :: Maybe DrawLineToFuncT.

noDrawLineToFuncT_WithClosures :: Maybe DrawLineToFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DrawLineToFuncT_WithClosures.

wrap_DrawLineToFuncT :: Maybe (Ptr (FunPtr C_DrawLineToFuncT)) -> DrawLineToFuncT_WithClosures -> C_DrawLineToFuncT

Wrap a DrawLineToFuncT into a C_DrawLineToFuncT.

DrawMoveToFuncT

type C_DrawMoveToFuncT = Ptr DrawFuncsT -> Ptr () -> Ptr DrawStateT -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DrawMoveToFuncT

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> IO ()

A virtual method for the DrawFuncsT to perform a "move-to" draw operation.

Since: 4.0.0

type DrawMoveToFuncT_WithClosures

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetMoveToFunc

-> IO ()

A virtual method for the DrawFuncsT to perform a "move-to" draw operation.

Since: 4.0.0

drop_closures_DrawMoveToFuncT :: DrawMoveToFuncT -> DrawMoveToFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DrawMoveToFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DrawMoveToFuncT

-> DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetMoveToFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DrawMoveToFuncT :: MonadIO m => DrawMoveToFuncT -> m (GClosure C_DrawMoveToFuncT)

Wrap the callback into a GClosure.

mk_DrawMoveToFuncT :: C_DrawMoveToFuncT -> IO (FunPtr C_DrawMoveToFuncT)

Generate a function pointer callable from C code, from a C_DrawMoveToFuncT.

noDrawMoveToFuncT :: Maybe DrawMoveToFuncT

A convenience synonym for Nothing :: Maybe DrawMoveToFuncT.

noDrawMoveToFuncT_WithClosures :: Maybe DrawMoveToFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DrawMoveToFuncT_WithClosures.

wrap_DrawMoveToFuncT :: Maybe (Ptr (FunPtr C_DrawMoveToFuncT)) -> DrawMoveToFuncT_WithClosures -> C_DrawMoveToFuncT

Wrap a DrawMoveToFuncT into a C_DrawMoveToFuncT.

DrawQuadraticToFuncT

type C_DrawQuadraticToFuncT = Ptr DrawFuncsT -> Ptr () -> Ptr DrawStateT -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type DrawQuadraticToFuncT

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

controlX: X component of control point

-> Float

controlY: Y component of control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> IO ()

A virtual method for the DrawFuncsT to perform a "quadratic-to" draw operation.

Since: 4.0.0

type DrawQuadraticToFuncT_WithClosures

Arguments

 = DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

controlX: X component of control point

-> Float

controlY: Y component of control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetQuadraticToFunc

-> IO ()

A virtual method for the DrawFuncsT to perform a "quadratic-to" draw operation.

Since: 4.0.0

drop_closures_DrawQuadraticToFuncT :: DrawQuadraticToFuncT -> DrawQuadraticToFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_DrawQuadraticToFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_DrawQuadraticToFuncT

-> DrawFuncsT

dfuncs: draw functions object

-> Ptr ()

drawData: The data accompanying the draw functions in fontDrawGlyph

-> DrawStateT

st: current draw state

-> Float

controlX: X component of control point

-> Float

controlY: Y component of control point

-> Float

toX: X component of target point

-> Float

toY: Y component of target point

-> Ptr ()

userData: User data pointer passed to drawFuncsSetQuadraticToFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_DrawQuadraticToFuncT :: MonadIO m => DrawQuadraticToFuncT -> m (GClosure C_DrawQuadraticToFuncT)

Wrap the callback into a GClosure.

mk_DrawQuadraticToFuncT :: C_DrawQuadraticToFuncT -> IO (FunPtr C_DrawQuadraticToFuncT)

Generate a function pointer callable from C code, from a C_DrawQuadraticToFuncT.

noDrawQuadraticToFuncT :: Maybe DrawQuadraticToFuncT

A convenience synonym for Nothing :: Maybe DrawQuadraticToFuncT.

noDrawQuadraticToFuncT_WithClosures :: Maybe DrawQuadraticToFuncT_WithClosures

A convenience synonym for Nothing :: Maybe DrawQuadraticToFuncT_WithClosures.

wrap_DrawQuadraticToFuncT :: Maybe (Ptr (FunPtr C_DrawQuadraticToFuncT)) -> DrawQuadraticToFuncT_WithClosures -> C_DrawQuadraticToFuncT

Wrap a DrawQuadraticToFuncT into a C_DrawQuadraticToFuncT.

FontDrawGlyphFuncT

type C_FontDrawGlyphFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr DrawFuncsT -> Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type FontDrawGlyphFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> IO ()

A virtual method for the FontFuncsT of an FontT object.

Since: 7.0.0

type FontDrawGlyphFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> Ptr ()

userData: User data pointer passed by the caller

-> IO ()

A virtual method for the FontFuncsT of an FontT object.

Since: 7.0.0

drop_closures_FontDrawGlyphFuncT :: FontDrawGlyphFuncT -> FontDrawGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontDrawGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontDrawGlyphFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> Ptr ()

userData: User data pointer passed by the caller

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontDrawGlyphFuncT :: MonadIO m => FontDrawGlyphFuncT -> m (GClosure C_FontDrawGlyphFuncT)

Wrap the callback into a GClosure.

mk_FontDrawGlyphFuncT :: C_FontDrawGlyphFuncT -> IO (FunPtr C_FontDrawGlyphFuncT)

Generate a function pointer callable from C code, from a C_FontDrawGlyphFuncT.

noFontDrawGlyphFuncT :: Maybe FontDrawGlyphFuncT

A convenience synonym for Nothing :: Maybe FontDrawGlyphFuncT.

noFontDrawGlyphFuncT_WithClosures :: Maybe FontDrawGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontDrawGlyphFuncT_WithClosures.

wrap_FontDrawGlyphFuncT :: Maybe (Ptr (FunPtr C_FontDrawGlyphFuncT)) -> FontDrawGlyphFuncT_WithClosures -> C_FontDrawGlyphFuncT

Wrap a FontDrawGlyphFuncT into a C_FontDrawGlyphFuncT.

FontGetFontExtentsFuncT

type C_FontGetFontExtentsFuncT = Ptr FontT -> Ptr () -> Ptr FontExtentsT -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetFontExtentsFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> IO (Int32, FontExtentsT)

This method should retrieve the extents for a font.

type FontGetFontExtentsFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, FontExtentsT)

This method should retrieve the extents for a font.

drop_closures_FontGetFontExtentsFuncT :: FontGetFontExtentsFuncT -> FontGetFontExtentsFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetFontExtentsFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetFontExtentsFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, FontExtentsT)

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetFontExtentsFuncT :: MonadIO m => FontGetFontExtentsFuncT -> m (GClosure C_FontGetFontExtentsFuncT)

Wrap the callback into a GClosure.

mk_FontGetFontExtentsFuncT :: C_FontGetFontExtentsFuncT -> IO (FunPtr C_FontGetFontExtentsFuncT)

Generate a function pointer callable from C code, from a C_FontGetFontExtentsFuncT.

noFontGetFontExtentsFuncT :: Maybe FontGetFontExtentsFuncT

A convenience synonym for Nothing :: Maybe FontGetFontExtentsFuncT.

noFontGetFontExtentsFuncT_WithClosures :: Maybe FontGetFontExtentsFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetFontExtentsFuncT_WithClosures.

wrap_FontGetFontExtentsFuncT :: Maybe (Ptr (FunPtr C_FontGetFontExtentsFuncT)) -> FontGetFontExtentsFuncT_WithClosures -> C_FontGetFontExtentsFuncT

Wrap a FontGetFontExtentsFuncT into a C_FontGetFontExtentsFuncT.

FontGetGlyphAdvanceFuncT

type C_FontGetGlyphAdvanceFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphAdvanceFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> IO Int32

Returns: The advance of glyph within font

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the advance for a specified glyph. The method must return an hb_position_t.

type FontGetGlyphAdvanceFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Int32

Returns: The advance of glyph within font

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the advance for a specified glyph. The method must return an hb_position_t.

drop_closures_FontGetGlyphAdvanceFuncT :: FontGetGlyphAdvanceFuncT -> FontGetGlyphAdvanceFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphAdvanceFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphAdvanceFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m Int32

Returns: The advance of glyph within font

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphAdvanceFuncT :: MonadIO m => FontGetGlyphAdvanceFuncT -> m (GClosure C_FontGetGlyphAdvanceFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphAdvanceFuncT :: C_FontGetGlyphAdvanceFuncT -> IO (FunPtr C_FontGetGlyphAdvanceFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphAdvanceFuncT.

noFontGetGlyphAdvanceFuncT :: Maybe FontGetGlyphAdvanceFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphAdvanceFuncT.

noFontGetGlyphAdvanceFuncT_WithClosures :: Maybe FontGetGlyphAdvanceFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphAdvanceFuncT_WithClosures.

wrap_FontGetGlyphAdvanceFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphAdvanceFuncT)) -> FontGetGlyphAdvanceFuncT_WithClosures -> C_FontGetGlyphAdvanceFuncT

Wrap a FontGetGlyphAdvanceFuncT into a C_FontGetGlyphAdvanceFuncT.

FontGetGlyphAdvancesFuncT

type C_FontGetGlyphAdvancesFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Word32 -> Ptr Int32 -> Word32 -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type FontGetGlyphAdvancesFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: The number of glyph IDs in the sequence queried

-> Word32

firstGlyph: The first glyph ID to query

-> Word32

glyphStride: The stride between successive glyph IDs

-> Word32

advanceStride: The stride between successive advances

-> IO Int32

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the advances for a sequence of glyphs.

type FontGetGlyphAdvancesFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: The number of glyph IDs in the sequence queried

-> Word32

firstGlyph: The first glyph ID to query

-> Word32

glyphStride: The stride between successive glyph IDs

-> Word32

advanceStride: The stride between successive advances

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Int32

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the advances for a sequence of glyphs.

drop_closures_FontGetGlyphAdvancesFuncT :: FontGetGlyphAdvancesFuncT -> FontGetGlyphAdvancesFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphAdvancesFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphAdvancesFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: The number of glyph IDs in the sequence queried

-> Word32

firstGlyph: The first glyph ID to query

-> Word32

glyphStride: The stride between successive glyph IDs

-> Word32

advanceStride: The stride between successive advances

-> Ptr ()

userData: User data pointer passed by the caller

-> m Int32

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphAdvancesFuncT :: MonadIO m => FontGetGlyphAdvancesFuncT -> m (GClosure C_FontGetGlyphAdvancesFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphAdvancesFuncT :: C_FontGetGlyphAdvancesFuncT -> IO (FunPtr C_FontGetGlyphAdvancesFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphAdvancesFuncT.

noFontGetGlyphAdvancesFuncT :: Maybe FontGetGlyphAdvancesFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphAdvancesFuncT.

noFontGetGlyphAdvancesFuncT_WithClosures :: Maybe FontGetGlyphAdvancesFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphAdvancesFuncT_WithClosures.

wrap_FontGetGlyphAdvancesFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphAdvancesFuncT)) -> FontGetGlyphAdvancesFuncT_WithClosures -> C_FontGetGlyphAdvancesFuncT

Wrap a FontGetGlyphAdvancesFuncT into a C_FontGetGlyphAdvancesFuncT.

FontGetGlyphContourPointFuncT

type C_FontGetGlyphContourPointFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Ptr Int32 -> Ptr Int32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphContourPointFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Word32

pointIndex: The contour-point index to query

-> IO (Int32, Int32, Int32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the (X,Y) coordinates (in font units) for a specified contour point in a glyph. Each coordinate must be returned as an hb_position_t output parameter.

type FontGetGlyphContourPointFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Word32

pointIndex: The contour-point index to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Int32, Int32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the (X,Y) coordinates (in font units) for a specified contour point in a glyph. Each coordinate must be returned as an hb_position_t output parameter.

drop_closures_FontGetGlyphContourPointFuncT :: FontGetGlyphContourPointFuncT -> FontGetGlyphContourPointFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphContourPointFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphContourPointFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Word32

pointIndex: The contour-point index to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Int32, Int32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphContourPointFuncT :: MonadIO m => FontGetGlyphContourPointFuncT -> m (GClosure C_FontGetGlyphContourPointFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphContourPointFuncT :: C_FontGetGlyphContourPointFuncT -> IO (FunPtr C_FontGetGlyphContourPointFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphContourPointFuncT.

noFontGetGlyphContourPointFuncT :: Maybe FontGetGlyphContourPointFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphContourPointFuncT.

noFontGetGlyphContourPointFuncT_WithClosures :: Maybe FontGetGlyphContourPointFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphContourPointFuncT_WithClosures.

wrap_FontGetGlyphContourPointFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphContourPointFuncT)) -> FontGetGlyphContourPointFuncT_WithClosures -> C_FontGetGlyphContourPointFuncT

Wrap a FontGetGlyphContourPointFuncT into a C_FontGetGlyphContourPointFuncT.

FontGetGlyphExtentsFuncT

type C_FontGetGlyphExtentsFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr GlyphExtentsT -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphExtentsFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> IO (Int32, GlyphExtentsT)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the extents for a specified glyph. Extents must be returned in an hb_glyph_extents output parameter.

type FontGetGlyphExtentsFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, GlyphExtentsT)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the extents for a specified glyph. Extents must be returned in an hb_glyph_extents output parameter.

drop_closures_FontGetGlyphExtentsFuncT :: FontGetGlyphExtentsFuncT -> FontGetGlyphExtentsFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphExtentsFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphExtentsFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, GlyphExtentsT)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphExtentsFuncT :: MonadIO m => FontGetGlyphExtentsFuncT -> m (GClosure C_FontGetGlyphExtentsFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphExtentsFuncT :: C_FontGetGlyphExtentsFuncT -> IO (FunPtr C_FontGetGlyphExtentsFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphExtentsFuncT.

noFontGetGlyphExtentsFuncT :: Maybe FontGetGlyphExtentsFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphExtentsFuncT.

noFontGetGlyphExtentsFuncT_WithClosures :: Maybe FontGetGlyphExtentsFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphExtentsFuncT_WithClosures.

wrap_FontGetGlyphExtentsFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphExtentsFuncT)) -> FontGetGlyphExtentsFuncT_WithClosures -> C_FontGetGlyphExtentsFuncT

Wrap a FontGetGlyphExtentsFuncT into a C_FontGetGlyphExtentsFuncT.

FontGetGlyphFromNameFuncT

type C_FontGetGlyphFromNameFuncT = Ptr FontT -> Ptr () -> Ptr CString -> Int32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphFromNameFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> [Text]

name: The name string to query

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID that corresponds to a glyph-name string.

type FontGetGlyphFromNameFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> [Text]

name: The name string to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID that corresponds to a glyph-name string.

drop_closures_FontGetGlyphFromNameFuncT :: FontGetGlyphFromNameFuncT -> FontGetGlyphFromNameFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphFromNameFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphFromNameFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> [Text]

name: The name string to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Word32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphFromNameFuncT :: MonadIO m => FontGetGlyphFromNameFuncT -> m (GClosure C_FontGetGlyphFromNameFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphFromNameFuncT :: C_FontGetGlyphFromNameFuncT -> IO (FunPtr C_FontGetGlyphFromNameFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphFromNameFuncT.

noFontGetGlyphFromNameFuncT :: Maybe FontGetGlyphFromNameFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphFromNameFuncT.

noFontGetGlyphFromNameFuncT_WithClosures :: Maybe FontGetGlyphFromNameFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphFromNameFuncT_WithClosures.

wrap_FontGetGlyphFromNameFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphFromNameFuncT)) -> FontGetGlyphFromNameFuncT_WithClosures -> C_FontGetGlyphFromNameFuncT

Wrap a FontGetGlyphFromNameFuncT into a C_FontGetGlyphFromNameFuncT.

FontGetGlyphFuncT

type C_FontGetGlyphFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

Deprecated: (Since version 1.2.3)

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID for a specified Unicode code point font, with an optional variation selector.

type FontGetGlyphFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID for a specified Unicode code point font, with an optional variation selector.

drop_closures_FontGetGlyphFuncT :: FontGetGlyphFuncT -> FontGetGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Word32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphFuncT :: MonadIO m => FontGetGlyphFuncT -> m (GClosure C_FontGetGlyphFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphFuncT :: C_FontGetGlyphFuncT -> IO (FunPtr C_FontGetGlyphFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphFuncT.

noFontGetGlyphFuncT :: Maybe FontGetGlyphFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphFuncT.

noFontGetGlyphFuncT_WithClosures :: Maybe FontGetGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphFuncT_WithClosures.

wrap_FontGetGlyphFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphFuncT)) -> FontGetGlyphFuncT_WithClosures -> C_FontGetGlyphFuncT

Wrap a FontGetGlyphFuncT into a C_FontGetGlyphFuncT.

FontGetGlyphKerningFuncT

type C_FontGetGlyphKerningFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphKerningFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

firstGlyph: The glyph ID of the first glyph in the glyph pair

-> Word32

secondGlyph: The glyph ID of the second glyph in the glyph pair

-> IO Int32

This method should retrieve the kerning-adjustment value for a glyph-pair in the specified font, for horizontal text segments.

type FontGetGlyphKerningFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

firstGlyph: The glyph ID of the first glyph in the glyph pair

-> Word32

secondGlyph: The glyph ID of the second glyph in the glyph pair

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Int32

This method should retrieve the kerning-adjustment value for a glyph-pair in the specified font, for horizontal text segments.

drop_closures_FontGetGlyphKerningFuncT :: FontGetGlyphKerningFuncT -> FontGetGlyphKerningFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphKerningFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphKerningFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

firstGlyph: The glyph ID of the first glyph in the glyph pair

-> Word32

secondGlyph: The glyph ID of the second glyph in the glyph pair

-> Ptr ()

userData: User data pointer passed by the caller

-> m Int32

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphKerningFuncT :: MonadIO m => FontGetGlyphKerningFuncT -> m (GClosure C_FontGetGlyphKerningFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphKerningFuncT :: C_FontGetGlyphKerningFuncT -> IO (FunPtr C_FontGetGlyphKerningFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphKerningFuncT.

noFontGetGlyphKerningFuncT :: Maybe FontGetGlyphKerningFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphKerningFuncT.

noFontGetGlyphKerningFuncT_WithClosures :: Maybe FontGetGlyphKerningFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphKerningFuncT_WithClosures.

wrap_FontGetGlyphKerningFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphKerningFuncT)) -> FontGetGlyphKerningFuncT_WithClosures -> C_FontGetGlyphKerningFuncT

Wrap a FontGetGlyphKerningFuncT into a C_FontGetGlyphKerningFuncT.

FontGetGlyphNameFuncT

type C_FontGetGlyphNameFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr (Ptr CString) -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphNameFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> IO (Int32, [Text])

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph name that corresponds to a glyph ID. The name should be returned in a string output parameter.

type FontGetGlyphNameFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, [Text])

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph name that corresponds to a glyph ID. The name should be returned in a string output parameter.

drop_closures_FontGetGlyphNameFuncT :: FontGetGlyphNameFuncT -> FontGetGlyphNameFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphNameFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphNameFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, [Text])

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphNameFuncT :: MonadIO m => FontGetGlyphNameFuncT -> m (GClosure C_FontGetGlyphNameFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphNameFuncT :: C_FontGetGlyphNameFuncT -> IO (FunPtr C_FontGetGlyphNameFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphNameFuncT.

noFontGetGlyphNameFuncT :: Maybe FontGetGlyphNameFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphNameFuncT.

noFontGetGlyphNameFuncT_WithClosures :: Maybe FontGetGlyphNameFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphNameFuncT_WithClosures.

wrap_FontGetGlyphNameFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphNameFuncT)) -> FontGetGlyphNameFuncT_WithClosures -> C_FontGetGlyphNameFuncT

Wrap a FontGetGlyphNameFuncT into a C_FontGetGlyphNameFuncT.

FontGetGlyphOriginFuncT

type C_FontGetGlyphOriginFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr Int32 -> Ptr Int32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetGlyphOriginFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> IO (Int32, Int32, Int32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the (X,Y) coordinates (in font units) of the origin for a glyph. Each coordinate must be returned in an hb_position_t output parameter.

type FontGetGlyphOriginFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Int32, Int32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the (X,Y) coordinates (in font units) of the origin for a glyph. Each coordinate must be returned in an hb_position_t output parameter.

drop_closures_FontGetGlyphOriginFuncT :: FontGetGlyphOriginFuncT -> FontGetGlyphOriginFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphOriginFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphOriginFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Int32, Int32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphOriginFuncT :: MonadIO m => FontGetGlyphOriginFuncT -> m (GClosure C_FontGetGlyphOriginFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphOriginFuncT :: C_FontGetGlyphOriginFuncT -> IO (FunPtr C_FontGetGlyphOriginFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphOriginFuncT.

noFontGetGlyphOriginFuncT :: Maybe FontGetGlyphOriginFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphOriginFuncT.

noFontGetGlyphOriginFuncT_WithClosures :: Maybe FontGetGlyphOriginFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphOriginFuncT_WithClosures.

wrap_FontGetGlyphOriginFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphOriginFuncT)) -> FontGetGlyphOriginFuncT_WithClosures -> C_FontGetGlyphOriginFuncT

Wrap a FontGetGlyphOriginFuncT into a C_FontGetGlyphOriginFuncT.

FontGetGlyphShapeFuncT

type C_FontGetGlyphShapeFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr DrawFuncsT -> Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type FontGetGlyphShapeFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> IO ()

Deprecated: (Since version 7.0.0)Use FontDrawGlyphFuncT instead

A virtual method for the FontFuncsT of an FontT object.

Since: 4.0.0

type FontGetGlyphShapeFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> Ptr ()

userData: User data pointer passed by the caller

-> IO ()

A virtual method for the FontFuncsT of an FontT object.

Since: 4.0.0

drop_closures_FontGetGlyphShapeFuncT :: FontGetGlyphShapeFuncT -> FontGetGlyphShapeFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetGlyphShapeFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetGlyphShapeFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> DrawFuncsT

drawFuncs: The draw functions to send the shape data to

-> Ptr ()

drawData: The data accompanying the draw functions

-> Ptr ()

userData: User data pointer passed by the caller

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetGlyphShapeFuncT :: MonadIO m => FontGetGlyphShapeFuncT -> m (GClosure C_FontGetGlyphShapeFuncT)

Wrap the callback into a GClosure.

mk_FontGetGlyphShapeFuncT :: C_FontGetGlyphShapeFuncT -> IO (FunPtr C_FontGetGlyphShapeFuncT)

Generate a function pointer callable from C code, from a C_FontGetGlyphShapeFuncT.

noFontGetGlyphShapeFuncT :: Maybe FontGetGlyphShapeFuncT

A convenience synonym for Nothing :: Maybe FontGetGlyphShapeFuncT.

noFontGetGlyphShapeFuncT_WithClosures :: Maybe FontGetGlyphShapeFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetGlyphShapeFuncT_WithClosures.

wrap_FontGetGlyphShapeFuncT :: Maybe (Ptr (FunPtr C_FontGetGlyphShapeFuncT)) -> FontGetGlyphShapeFuncT_WithClosures -> C_FontGetGlyphShapeFuncT

Wrap a FontGetGlyphShapeFuncT into a C_FontGetGlyphShapeFuncT.

FontGetNominalGlyphFuncT

type C_FontGetNominalGlyphFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetNominalGlyphFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the nominal glyph ID for a specified Unicode code point. Glyph IDs must be returned in a hb_codepoint_t output parameter.

type FontGetNominalGlyphFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the nominal glyph ID for a specified Unicode code point. Glyph IDs must be returned in a hb_codepoint_t output parameter.

drop_closures_FontGetNominalGlyphFuncT :: FontGetNominalGlyphFuncT -> FontGetNominalGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetNominalGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetNominalGlyphFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Word32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetNominalGlyphFuncT :: MonadIO m => FontGetNominalGlyphFuncT -> m (GClosure C_FontGetNominalGlyphFuncT)

Wrap the callback into a GClosure.

mk_FontGetNominalGlyphFuncT :: C_FontGetNominalGlyphFuncT -> IO (FunPtr C_FontGetNominalGlyphFuncT)

Generate a function pointer callable from C code, from a C_FontGetNominalGlyphFuncT.

noFontGetNominalGlyphFuncT :: Maybe FontGetNominalGlyphFuncT

A convenience synonym for Nothing :: Maybe FontGetNominalGlyphFuncT.

noFontGetNominalGlyphFuncT_WithClosures :: Maybe FontGetNominalGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetNominalGlyphFuncT_WithClosures.

wrap_FontGetNominalGlyphFuncT :: Maybe (Ptr (FunPtr C_FontGetNominalGlyphFuncT)) -> FontGetNominalGlyphFuncT_WithClosures -> C_FontGetNominalGlyphFuncT

Wrap a FontGetNominalGlyphFuncT into a C_FontGetNominalGlyphFuncT.

FontGetNominalGlyphsFuncT

type C_FontGetNominalGlyphsFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Word32 -> Ptr Word32 -> Word32 -> Ptr () -> IO Word32

Type for the callback on the (unwrapped) C side.

type FontGetNominalGlyphsFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: number of code points to query

-> Word32

firstUnicode: The first Unicode code point to query

-> Word32

unicodeStride: The stride between successive code points

-> Word32

glyphStride: The stride between successive glyph IDs

-> IO (Word32, Word32)

Returns: the number of code points processed

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the nominal glyph IDs for a sequence of Unicode code points. Glyph IDs must be returned in a hb_codepoint_t output parameter.

type FontGetNominalGlyphsFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: number of code points to query

-> Word32

firstUnicode: The first Unicode code point to query

-> Word32

unicodeStride: The stride between successive code points

-> Word32

glyphStride: The stride between successive glyph IDs

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Word32, Word32)

Returns: the number of code points processed

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the nominal glyph IDs for a sequence of Unicode code points. Glyph IDs must be returned in a hb_codepoint_t output parameter.

drop_closures_FontGetNominalGlyphsFuncT :: FontGetNominalGlyphsFuncT -> FontGetNominalGlyphsFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetNominalGlyphsFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetNominalGlyphsFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

count: number of code points to query

-> Word32

firstUnicode: The first Unicode code point to query

-> Word32

unicodeStride: The stride between successive code points

-> Word32

glyphStride: The stride between successive glyph IDs

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Word32, Word32)

Returns: the number of code points processed

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetNominalGlyphsFuncT :: MonadIO m => FontGetNominalGlyphsFuncT -> m (GClosure C_FontGetNominalGlyphsFuncT)

Wrap the callback into a GClosure.

mk_FontGetNominalGlyphsFuncT :: C_FontGetNominalGlyphsFuncT -> IO (FunPtr C_FontGetNominalGlyphsFuncT)

Generate a function pointer callable from C code, from a C_FontGetNominalGlyphsFuncT.

noFontGetNominalGlyphsFuncT :: Maybe FontGetNominalGlyphsFuncT

A convenience synonym for Nothing :: Maybe FontGetNominalGlyphsFuncT.

noFontGetNominalGlyphsFuncT_WithClosures :: Maybe FontGetNominalGlyphsFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetNominalGlyphsFuncT_WithClosures.

wrap_FontGetNominalGlyphsFuncT :: Maybe (Ptr (FunPtr C_FontGetNominalGlyphsFuncT)) -> FontGetNominalGlyphsFuncT_WithClosures -> C_FontGetNominalGlyphsFuncT

Wrap a FontGetNominalGlyphsFuncT into a C_FontGetNominalGlyphsFuncT.

FontGetVariationGlyphFuncT

type C_FontGetVariationGlyphFuncT = Ptr FontT -> Ptr () -> Word32 -> Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type FontGetVariationGlyphFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID for a specified Unicode code point followed by a specified Variation Selector code point. Glyph IDs must be returned in a hb_codepoint_t output parameter.

type FontGetVariationGlyphFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO (Int32, Word32)

Returns: true if data found, false otherwise

A virtual method for the FontFuncsT of an FontT object.

This method should retrieve the glyph ID for a specified Unicode code point followed by a specified Variation Selector code point. Glyph IDs must be returned in a hb_codepoint_t output parameter.

drop_closures_FontGetVariationGlyphFuncT :: FontGetVariationGlyphFuncT -> FontGetVariationGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontGetVariationGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontGetVariationGlyphFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

unicode: The Unicode code point to query

-> Word32

variationSelector: The variation-selector code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m (Int32, Word32)

Returns: true if data found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontGetVariationGlyphFuncT :: MonadIO m => FontGetVariationGlyphFuncT -> m (GClosure C_FontGetVariationGlyphFuncT)

Wrap the callback into a GClosure.

mk_FontGetVariationGlyphFuncT :: C_FontGetVariationGlyphFuncT -> IO (FunPtr C_FontGetVariationGlyphFuncT)

Generate a function pointer callable from C code, from a C_FontGetVariationGlyphFuncT.

noFontGetVariationGlyphFuncT :: Maybe FontGetVariationGlyphFuncT

A convenience synonym for Nothing :: Maybe FontGetVariationGlyphFuncT.

noFontGetVariationGlyphFuncT_WithClosures :: Maybe FontGetVariationGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontGetVariationGlyphFuncT_WithClosures.

wrap_FontGetVariationGlyphFuncT :: Maybe (Ptr (FunPtr C_FontGetVariationGlyphFuncT)) -> FontGetVariationGlyphFuncT_WithClosures -> C_FontGetVariationGlyphFuncT

Wrap a FontGetVariationGlyphFuncT into a C_FontGetVariationGlyphFuncT.

FontPaintGlyphFuncT

type C_FontPaintGlyphFuncT = Ptr FontT -> Ptr () -> Word32 -> Ptr PaintFuncsT -> Ptr () -> Word32 -> Word32 -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type FontPaintGlyphFuncT

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> PaintFuncsT

paintFuncs: The paint functions to use

-> Ptr ()

paintData: The data accompanying the paint functions

-> Word32

paletteIndex: The color palette to use

-> Word32

foreground: The foreground color

-> IO ()

A virtual method for the FontFuncsT of an FontT object.

Since: 7.0.0

type FontPaintGlyphFuncT_WithClosures

Arguments

 = FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> PaintFuncsT

paintFuncs: The paint functions to use

-> Ptr ()

paintData: The data accompanying the paint functions

-> Word32

paletteIndex: The color palette to use

-> Word32

foreground: The foreground color

-> Ptr ()

userData: User data pointer passed by the caller

-> IO ()

A virtual method for the FontFuncsT of an FontT object.

Since: 7.0.0

drop_closures_FontPaintGlyphFuncT :: FontPaintGlyphFuncT -> FontPaintGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_FontPaintGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_FontPaintGlyphFuncT

-> FontT

font: FontT to work upon

-> Ptr ()

fontData: font user data pointer

-> Word32

glyph: The glyph ID to query

-> PaintFuncsT

paintFuncs: The paint functions to use

-> Ptr ()

paintData: The data accompanying the paint functions

-> Word32

paletteIndex: The color palette to use

-> Word32

foreground: The foreground color

-> Ptr ()

userData: User data pointer passed by the caller

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_FontPaintGlyphFuncT :: MonadIO m => FontPaintGlyphFuncT -> m (GClosure C_FontPaintGlyphFuncT)

Wrap the callback into a GClosure.

mk_FontPaintGlyphFuncT :: C_FontPaintGlyphFuncT -> IO (FunPtr C_FontPaintGlyphFuncT)

Generate a function pointer callable from C code, from a C_FontPaintGlyphFuncT.

noFontPaintGlyphFuncT :: Maybe FontPaintGlyphFuncT

A convenience synonym for Nothing :: Maybe FontPaintGlyphFuncT.

noFontPaintGlyphFuncT_WithClosures :: Maybe FontPaintGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe FontPaintGlyphFuncT_WithClosures.

wrap_FontPaintGlyphFuncT :: Maybe (Ptr (FunPtr C_FontPaintGlyphFuncT)) -> FontPaintGlyphFuncT_WithClosures -> C_FontPaintGlyphFuncT

Wrap a FontPaintGlyphFuncT into a C_FontPaintGlyphFuncT.

PaintColorFuncT

type C_PaintColorFuncT = Ptr PaintFuncsT -> Ptr () -> Int32 -> Word32 -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintColorFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Int32

isForeground: whether the color is the foreground

-> Word32

color: The color to use, unpremultiplied

-> IO ()

A virtual method for the PaintFuncsT to paint a color everywhere within the current clip.

Since: 7.0.0

type PaintColorFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Int32

isForeground: whether the color is the foreground

-> Word32

color: The color to use, unpremultiplied

-> Ptr ()

userData: User data pointer passed to paintFuncsSetColorFunc

-> IO ()

A virtual method for the PaintFuncsT to paint a color everywhere within the current clip.

Since: 7.0.0

drop_closures_PaintColorFuncT :: PaintColorFuncT -> PaintColorFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintColorFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintColorFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Int32

isForeground: whether the color is the foreground

-> Word32

color: The color to use, unpremultiplied

-> Ptr ()

userData: User data pointer passed to paintFuncsSetColorFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintColorFuncT :: MonadIO m => PaintColorFuncT -> m (GClosure C_PaintColorFuncT)

Wrap the callback into a GClosure.

mk_PaintColorFuncT :: C_PaintColorFuncT -> IO (FunPtr C_PaintColorFuncT)

Generate a function pointer callable from C code, from a C_PaintColorFuncT.

noPaintColorFuncT :: Maybe PaintColorFuncT

A convenience synonym for Nothing :: Maybe PaintColorFuncT.

noPaintColorFuncT_WithClosures :: Maybe PaintColorFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintColorFuncT_WithClosures.

wrap_PaintColorFuncT :: Maybe (Ptr (FunPtr C_PaintColorFuncT)) -> PaintColorFuncT_WithClosures -> C_PaintColorFuncT

Wrap a PaintColorFuncT into a C_PaintColorFuncT.

PaintCustomPaletteColorFuncT

type C_PaintCustomPaletteColorFuncT = Ptr PaintFuncsT -> Ptr () -> Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type PaintCustomPaletteColorFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

colorIndex: the color index

-> IO (Int32, Word32)

Returns: true if found, false otherwise

A virtual method for the PaintFuncsT to fetch a color from the custom color palette.

Custom palette colors override the colors from the fonts selected color palette. It is not necessary to override all palette entries; for entries that should be taken from the font palette, return false.

This function might get called multiple times, but the custom palette is expected to remain unchanged for duration of a fontPaintGlyph call.

Since: 7.0.0

type PaintCustomPaletteColorFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

colorIndex: the color index

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopGroupFunc

-> IO (Int32, Word32)

Returns: true if found, false otherwise

A virtual method for the PaintFuncsT to fetch a color from the custom color palette.

Custom palette colors override the colors from the fonts selected color palette. It is not necessary to override all palette entries; for entries that should be taken from the font palette, return false.

This function might get called multiple times, but the custom palette is expected to remain unchanged for duration of a fontPaintGlyph call.

Since: 7.0.0

drop_closures_PaintCustomPaletteColorFuncT :: PaintCustomPaletteColorFuncT -> PaintCustomPaletteColorFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintCustomPaletteColorFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintCustomPaletteColorFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

colorIndex: the color index

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopGroupFunc

-> m (Int32, Word32)

Returns: true if found, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintCustomPaletteColorFuncT :: MonadIO m => PaintCustomPaletteColorFuncT -> m (GClosure C_PaintCustomPaletteColorFuncT)

Wrap the callback into a GClosure.

mk_PaintCustomPaletteColorFuncT :: C_PaintCustomPaletteColorFuncT -> IO (FunPtr C_PaintCustomPaletteColorFuncT)

Generate a function pointer callable from C code, from a C_PaintCustomPaletteColorFuncT.

noPaintCustomPaletteColorFuncT :: Maybe PaintCustomPaletteColorFuncT

A convenience synonym for Nothing :: Maybe PaintCustomPaletteColorFuncT.

noPaintCustomPaletteColorFuncT_WithClosures :: Maybe PaintCustomPaletteColorFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintCustomPaletteColorFuncT_WithClosures.

wrap_PaintCustomPaletteColorFuncT :: Maybe (Ptr (FunPtr C_PaintCustomPaletteColorFuncT)) -> PaintCustomPaletteColorFuncT_WithClosures -> C_PaintCustomPaletteColorFuncT

Wrap a PaintCustomPaletteColorFuncT into a C_PaintCustomPaletteColorFuncT.

PaintImageFuncT

type C_PaintImageFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr BlobT -> Word32 -> Word32 -> Word32 -> CFloat -> Ptr GlyphExtentsT -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type PaintImageFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> BlobT

image: the image data

-> Word32

width: width of the raster image in pixels, or 0

-> Word32

height: height of the raster image in pixels, or 0

-> Word32

format: the image format as a tag

-> Float

slant: the synthetic slant ratio to be applied to the image during rendering

-> Maybe GlyphExtentsT

extents: glyph extents for desired rendering

-> IO Int32

Returns: Whether the operation was successful.

A virtual method for the PaintFuncsT to paint a glyph image.

This method is called for glyphs with image blobs in the CBDT, sbix or SVG tables. The format identifies the kind of data that is contained in image. Possible values include HB_PAINT_IMAGE_FORMAT_PNG, HB_PAINT_IMAGE_FORMAT_SVG and HB_PAINT_IMAGE_FORMAT_BGRA.

The image dimensions and glyph extents are provided if available, and should be used to size and position the image.

Since: 7.0.0

type PaintImageFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> BlobT

image: the image data

-> Word32

width: width of the raster image in pixels, or 0

-> Word32

height: height of the raster image in pixels, or 0

-> Word32

format: the image format as a tag

-> Float

slant: the synthetic slant ratio to be applied to the image during rendering

-> Maybe GlyphExtentsT

extents: glyph extents for desired rendering

-> Ptr ()

userData: User data pointer passed to paintFuncsSetImageFunc

-> IO Int32

Returns: Whether the operation was successful.

A virtual method for the PaintFuncsT to paint a glyph image.

This method is called for glyphs with image blobs in the CBDT, sbix or SVG tables. The format identifies the kind of data that is contained in image. Possible values include HB_PAINT_IMAGE_FORMAT_PNG, HB_PAINT_IMAGE_FORMAT_SVG and HB_PAINT_IMAGE_FORMAT_BGRA.

The image dimensions and glyph extents are provided if available, and should be used to size and position the image.

Since: 7.0.0

drop_closures_PaintImageFuncT :: PaintImageFuncT -> PaintImageFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintImageFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintImageFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> BlobT

image: the image data

-> Word32

width: width of the raster image in pixels, or 0

-> Word32

height: height of the raster image in pixels, or 0

-> Word32

format: the image format as a tag

-> Float

slant: the synthetic slant ratio to be applied to the image during rendering

-> Maybe GlyphExtentsT

extents: glyph extents for desired rendering

-> Ptr ()

userData: User data pointer passed to paintFuncsSetImageFunc

-> m Int32

Returns: Whether the operation was successful.

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintImageFuncT :: MonadIO m => PaintImageFuncT -> m (GClosure C_PaintImageFuncT)

Wrap the callback into a GClosure.

mk_PaintImageFuncT :: C_PaintImageFuncT -> IO (FunPtr C_PaintImageFuncT)

Generate a function pointer callable from C code, from a C_PaintImageFuncT.

noPaintImageFuncT :: Maybe PaintImageFuncT

A convenience synonym for Nothing :: Maybe PaintImageFuncT.

noPaintImageFuncT_WithClosures :: Maybe PaintImageFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintImageFuncT_WithClosures.

wrap_PaintImageFuncT :: Maybe (Ptr (FunPtr C_PaintImageFuncT)) -> PaintImageFuncT_WithClosures -> C_PaintImageFuncT

Wrap a PaintImageFuncT into a C_PaintImageFuncT.

PaintLinearGradientFuncT

type C_PaintLinearGradientFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr ColorLineT -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintLinearGradientFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first point

-> Float

y0: Y coordinate of the first point

-> Float

x1: X coordinate of the second point

-> Float

y1: Y coordinate of the second point

-> Float

x2: X coordinate of the third point

-> Float

y2: Y coordinate of the third point

-> IO ()

A virtual method for the PaintFuncsT to paint a linear gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

type PaintLinearGradientFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first point

-> Float

y0: Y coordinate of the first point

-> Float

x1: X coordinate of the second point

-> Float

y1: Y coordinate of the second point

-> Float

x2: X coordinate of the third point

-> Float

y2: Y coordinate of the third point

-> Ptr ()

userData: User data pointer passed to paintFuncsSetLinearGradientFunc

-> IO ()

A virtual method for the PaintFuncsT to paint a linear gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

drop_closures_PaintLinearGradientFuncT :: PaintLinearGradientFuncT -> PaintLinearGradientFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintLinearGradientFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintLinearGradientFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first point

-> Float

y0: Y coordinate of the first point

-> Float

x1: X coordinate of the second point

-> Float

y1: Y coordinate of the second point

-> Float

x2: X coordinate of the third point

-> Float

y2: Y coordinate of the third point

-> Ptr ()

userData: User data pointer passed to paintFuncsSetLinearGradientFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintLinearGradientFuncT :: MonadIO m => PaintLinearGradientFuncT -> m (GClosure C_PaintLinearGradientFuncT)

Wrap the callback into a GClosure.

mk_PaintLinearGradientFuncT :: C_PaintLinearGradientFuncT -> IO (FunPtr C_PaintLinearGradientFuncT)

Generate a function pointer callable from C code, from a C_PaintLinearGradientFuncT.

noPaintLinearGradientFuncT :: Maybe PaintLinearGradientFuncT

A convenience synonym for Nothing :: Maybe PaintLinearGradientFuncT.

noPaintLinearGradientFuncT_WithClosures :: Maybe PaintLinearGradientFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintLinearGradientFuncT_WithClosures.

wrap_PaintLinearGradientFuncT :: Maybe (Ptr (FunPtr C_PaintLinearGradientFuncT)) -> PaintLinearGradientFuncT_WithClosures -> C_PaintLinearGradientFuncT

Wrap a PaintLinearGradientFuncT into a C_PaintLinearGradientFuncT.

PaintPopClipFuncT

type C_PaintPopClipFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPopClipFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_clip_glyph_func_t or hb_paint_funcs_push_clip_rectangle_func_t vfuncs.

Since: 7.0.0

type PaintPopClipFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopClipFunc

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_clip_glyph_func_t or hb_paint_funcs_push_clip_rectangle_func_t vfuncs.

Since: 7.0.0

drop_closures_PaintPopClipFuncT :: PaintPopClipFuncT -> PaintPopClipFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPopClipFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPopClipFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopClipFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPopClipFuncT :: MonadIO m => PaintPopClipFuncT -> m (GClosure C_PaintPopClipFuncT)

Wrap the callback into a GClosure.

mk_PaintPopClipFuncT :: C_PaintPopClipFuncT -> IO (FunPtr C_PaintPopClipFuncT)

Generate a function pointer callable from C code, from a C_PaintPopClipFuncT.

noPaintPopClipFuncT :: Maybe PaintPopClipFuncT

A convenience synonym for Nothing :: Maybe PaintPopClipFuncT.

noPaintPopClipFuncT_WithClosures :: Maybe PaintPopClipFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPopClipFuncT_WithClosures.

wrap_PaintPopClipFuncT :: Maybe (Ptr (FunPtr C_PaintPopClipFuncT)) -> PaintPopClipFuncT_WithClosures -> C_PaintPopClipFuncT

Wrap a PaintPopClipFuncT into a C_PaintPopClipFuncT.

PaintPopGroupFuncT

type C_PaintPopGroupFuncT = Ptr PaintFuncsT -> Ptr () -> CUInt -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPopGroupFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> PaintCompositeModeT

mode: the compositing mode to use

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_group_func_t vfunc.

This call stops the redirection to the intermediate surface, and then composites it on the previous surface, using the compositing mode passed to this call.

Since: 7.0.0

type PaintPopGroupFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> PaintCompositeModeT

mode: the compositing mode to use

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopGroupFunc

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_group_func_t vfunc.

This call stops the redirection to the intermediate surface, and then composites it on the previous surface, using the compositing mode passed to this call.

Since: 7.0.0

drop_closures_PaintPopGroupFuncT :: PaintPopGroupFuncT -> PaintPopGroupFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPopGroupFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPopGroupFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> PaintCompositeModeT

mode: the compositing mode to use

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopGroupFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPopGroupFuncT :: MonadIO m => PaintPopGroupFuncT -> m (GClosure C_PaintPopGroupFuncT)

Wrap the callback into a GClosure.

mk_PaintPopGroupFuncT :: C_PaintPopGroupFuncT -> IO (FunPtr C_PaintPopGroupFuncT)

Generate a function pointer callable from C code, from a C_PaintPopGroupFuncT.

noPaintPopGroupFuncT :: Maybe PaintPopGroupFuncT

A convenience synonym for Nothing :: Maybe PaintPopGroupFuncT.

noPaintPopGroupFuncT_WithClosures :: Maybe PaintPopGroupFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPopGroupFuncT_WithClosures.

wrap_PaintPopGroupFuncT :: Maybe (Ptr (FunPtr C_PaintPopGroupFuncT)) -> PaintPopGroupFuncT_WithClosures -> C_PaintPopGroupFuncT

Wrap a PaintPopGroupFuncT into a C_PaintPopGroupFuncT.

PaintPopTransformFuncT

type C_PaintPopTransformFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPopTransformFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_transform_func_t vfunc.

Since: 7.0.0

type PaintPopTransformFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopTransformFunc

-> IO ()

A virtual method for the PaintFuncsT to undo the effect of a prior call to the hb_paint_funcs_push_transform_func_t vfunc.

Since: 7.0.0

drop_closures_PaintPopTransformFuncT :: PaintPopTransformFuncT -> PaintPopTransformFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPopTransformFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPopTransformFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPopTransformFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPopTransformFuncT :: MonadIO m => PaintPopTransformFuncT -> m (GClosure C_PaintPopTransformFuncT)

Wrap the callback into a GClosure.

mk_PaintPopTransformFuncT :: C_PaintPopTransformFuncT -> IO (FunPtr C_PaintPopTransformFuncT)

Generate a function pointer callable from C code, from a C_PaintPopTransformFuncT.

noPaintPopTransformFuncT :: Maybe PaintPopTransformFuncT

A convenience synonym for Nothing :: Maybe PaintPopTransformFuncT.

noPaintPopTransformFuncT_WithClosures :: Maybe PaintPopTransformFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPopTransformFuncT_WithClosures.

wrap_PaintPopTransformFuncT :: Maybe (Ptr (FunPtr C_PaintPopTransformFuncT)) -> PaintPopTransformFuncT_WithClosures -> C_PaintPopTransformFuncT

Wrap a PaintPopTransformFuncT into a C_PaintPopTransformFuncT.

PaintPushClipGlyphFuncT

type C_PaintPushClipGlyphFuncT = Ptr PaintFuncsT -> Ptr () -> Word32 -> Ptr FontT -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPushClipGlyphFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

glyph: the glyph ID

-> FontT

font: the font

-> IO ()

A virtual method for the PaintFuncsT to clip subsequent paint calls to the outline of a glyph.

The coordinates of the glyph outline are interpreted according to the current transform.

This clip is applied in addition to the current clip, and remains in effect until a matching call to the hb_paint_funcs_pop_clip_func_t vfunc.

Since: 7.0.0

type PaintPushClipGlyphFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

glyph: the glyph ID

-> FontT

font: the font

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushClipGlyphFunc

-> IO ()

A virtual method for the PaintFuncsT to clip subsequent paint calls to the outline of a glyph.

The coordinates of the glyph outline are interpreted according to the current transform.

This clip is applied in addition to the current clip, and remains in effect until a matching call to the hb_paint_funcs_pop_clip_func_t vfunc.

Since: 7.0.0

drop_closures_PaintPushClipGlyphFuncT :: PaintPushClipGlyphFuncT -> PaintPushClipGlyphFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPushClipGlyphFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPushClipGlyphFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Word32

glyph: the glyph ID

-> FontT

font: the font

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushClipGlyphFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPushClipGlyphFuncT :: MonadIO m => PaintPushClipGlyphFuncT -> m (GClosure C_PaintPushClipGlyphFuncT)

Wrap the callback into a GClosure.

mk_PaintPushClipGlyphFuncT :: C_PaintPushClipGlyphFuncT -> IO (FunPtr C_PaintPushClipGlyphFuncT)

Generate a function pointer callable from C code, from a C_PaintPushClipGlyphFuncT.

noPaintPushClipGlyphFuncT :: Maybe PaintPushClipGlyphFuncT

A convenience synonym for Nothing :: Maybe PaintPushClipGlyphFuncT.

noPaintPushClipGlyphFuncT_WithClosures :: Maybe PaintPushClipGlyphFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPushClipGlyphFuncT_WithClosures.

wrap_PaintPushClipGlyphFuncT :: Maybe (Ptr (FunPtr C_PaintPushClipGlyphFuncT)) -> PaintPushClipGlyphFuncT_WithClosures -> C_PaintPushClipGlyphFuncT

Wrap a PaintPushClipGlyphFuncT into a C_PaintPushClipGlyphFuncT.

PaintPushClipRectangleFuncT

type C_PaintPushClipRectangleFuncT = Ptr PaintFuncsT -> Ptr () -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPushClipRectangleFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xmin: min X for the rectangle

-> Float

ymin: min Y for the rectangle

-> Float

xmax: max X for the rectangle

-> Float

ymax: max Y for the rectangle

-> IO ()

A virtual method for the PaintFuncsT to clip subsequent paint calls to a rectangle.

The coordinates of the rectangle are interpreted according to the current transform.

This clip is applied in addition to the current clip, and remains in effect until a matching call to the hb_paint_funcs_pop_clip_func_t vfunc.

Since: 7.0.0

type PaintPushClipRectangleFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xmin: min X for the rectangle

-> Float

ymin: min Y for the rectangle

-> Float

xmax: max X for the rectangle

-> Float

ymax: max Y for the rectangle

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushClipRectangleFunc

-> IO ()

A virtual method for the PaintFuncsT to clip subsequent paint calls to a rectangle.

The coordinates of the rectangle are interpreted according to the current transform.

This clip is applied in addition to the current clip, and remains in effect until a matching call to the hb_paint_funcs_pop_clip_func_t vfunc.

Since: 7.0.0

drop_closures_PaintPushClipRectangleFuncT :: PaintPushClipRectangleFuncT -> PaintPushClipRectangleFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPushClipRectangleFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPushClipRectangleFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xmin: min X for the rectangle

-> Float

ymin: min Y for the rectangle

-> Float

xmax: max X for the rectangle

-> Float

ymax: max Y for the rectangle

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushClipRectangleFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPushClipRectangleFuncT :: MonadIO m => PaintPushClipRectangleFuncT -> m (GClosure C_PaintPushClipRectangleFuncT)

Wrap the callback into a GClosure.

mk_PaintPushClipRectangleFuncT :: C_PaintPushClipRectangleFuncT -> IO (FunPtr C_PaintPushClipRectangleFuncT)

Generate a function pointer callable from C code, from a C_PaintPushClipRectangleFuncT.

noPaintPushClipRectangleFuncT :: Maybe PaintPushClipRectangleFuncT

A convenience synonym for Nothing :: Maybe PaintPushClipRectangleFuncT.

noPaintPushClipRectangleFuncT_WithClosures :: Maybe PaintPushClipRectangleFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPushClipRectangleFuncT_WithClosures.

wrap_PaintPushClipRectangleFuncT :: Maybe (Ptr (FunPtr C_PaintPushClipRectangleFuncT)) -> PaintPushClipRectangleFuncT_WithClosures -> C_PaintPushClipRectangleFuncT

Wrap a PaintPushClipRectangleFuncT into a C_PaintPushClipRectangleFuncT.

PaintPushGroupFuncT

type C_PaintPushGroupFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPushGroupFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> IO ()

A virtual method for the PaintFuncsT to use an intermediate surface for subsequent paint calls.

The drawing will be redirected to an intermediate surface until a matching call to the hb_paint_funcs_pop_group_func_t vfunc.

Since: 7.0.0

type PaintPushGroupFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushGroupFunc

-> IO ()

A virtual method for the PaintFuncsT to use an intermediate surface for subsequent paint calls.

The drawing will be redirected to an intermediate surface until a matching call to the hb_paint_funcs_pop_group_func_t vfunc.

Since: 7.0.0

drop_closures_PaintPushGroupFuncT :: PaintPushGroupFuncT -> PaintPushGroupFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPushGroupFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPushGroupFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushGroupFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPushGroupFuncT :: MonadIO m => PaintPushGroupFuncT -> m (GClosure C_PaintPushGroupFuncT)

Wrap the callback into a GClosure.

mk_PaintPushGroupFuncT :: C_PaintPushGroupFuncT -> IO (FunPtr C_PaintPushGroupFuncT)

Generate a function pointer callable from C code, from a C_PaintPushGroupFuncT.

noPaintPushGroupFuncT :: Maybe PaintPushGroupFuncT

A convenience synonym for Nothing :: Maybe PaintPushGroupFuncT.

noPaintPushGroupFuncT_WithClosures :: Maybe PaintPushGroupFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPushGroupFuncT_WithClosures.

wrap_PaintPushGroupFuncT :: Maybe (Ptr (FunPtr C_PaintPushGroupFuncT)) -> PaintPushGroupFuncT_WithClosures -> C_PaintPushGroupFuncT

Wrap a PaintPushGroupFuncT into a C_PaintPushGroupFuncT.

PaintPushTransformFuncT

type C_PaintPushTransformFuncT = Ptr PaintFuncsT -> Ptr () -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintPushTransformFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xx: xx component of the transform matrix

-> Float

yx: yx component of the transform matrix

-> Float

xy: xy component of the transform matrix

-> Float

yy: yy component of the transform matrix

-> Float

dx: dx component of the transform matrix

-> Float

dy: dy component of the transform matrix

-> IO ()

A virtual method for the PaintFuncsT to apply a transform to subsequent paint calls.

This transform is applied after the current transform, and remains in effect until a matching call to the hb_paint_funcs_pop_transform_func_t vfunc.

Since: 7.0.0

type PaintPushTransformFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xx: xx component of the transform matrix

-> Float

yx: yx component of the transform matrix

-> Float

xy: xy component of the transform matrix

-> Float

yy: yy component of the transform matrix

-> Float

dx: dx component of the transform matrix

-> Float

dy: dy component of the transform matrix

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushTransformFunc

-> IO ()

A virtual method for the PaintFuncsT to apply a transform to subsequent paint calls.

This transform is applied after the current transform, and remains in effect until a matching call to the hb_paint_funcs_pop_transform_func_t vfunc.

Since: 7.0.0

drop_closures_PaintPushTransformFuncT :: PaintPushTransformFuncT -> PaintPushTransformFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintPushTransformFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintPushTransformFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> Float

xx: xx component of the transform matrix

-> Float

yx: yx component of the transform matrix

-> Float

xy: xy component of the transform matrix

-> Float

yy: yy component of the transform matrix

-> Float

dx: dx component of the transform matrix

-> Float

dy: dy component of the transform matrix

-> Ptr ()

userData: User data pointer passed to paintFuncsSetPushTransformFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintPushTransformFuncT :: MonadIO m => PaintPushTransformFuncT -> m (GClosure C_PaintPushTransformFuncT)

Wrap the callback into a GClosure.

mk_PaintPushTransformFuncT :: C_PaintPushTransformFuncT -> IO (FunPtr C_PaintPushTransformFuncT)

Generate a function pointer callable from C code, from a C_PaintPushTransformFuncT.

noPaintPushTransformFuncT :: Maybe PaintPushTransformFuncT

A convenience synonym for Nothing :: Maybe PaintPushTransformFuncT.

noPaintPushTransformFuncT_WithClosures :: Maybe PaintPushTransformFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintPushTransformFuncT_WithClosures.

wrap_PaintPushTransformFuncT :: Maybe (Ptr (FunPtr C_PaintPushTransformFuncT)) -> PaintPushTransformFuncT_WithClosures -> C_PaintPushTransformFuncT

Wrap a PaintPushTransformFuncT into a C_PaintPushTransformFuncT.

PaintRadialGradientFuncT

type C_PaintRadialGradientFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr ColorLineT -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintRadialGradientFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first circle's center

-> Float

y0: Y coordinate of the first circle's center

-> Float

r0: radius of the first circle

-> Float

x1: X coordinate of the second circle's center

-> Float

y1: Y coordinate of the second circle's center

-> Float

r1: radius of the second circle

-> IO ()

A virtual method for the PaintFuncsT to paint a radial gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

type PaintRadialGradientFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first circle's center

-> Float

y0: Y coordinate of the first circle's center

-> Float

r0: radius of the first circle

-> Float

x1: X coordinate of the second circle's center

-> Float

y1: Y coordinate of the second circle's center

-> Float

r1: radius of the second circle

-> Ptr ()

userData: User data pointer passed to paintFuncsSetRadialGradientFunc

-> IO ()

A virtual method for the PaintFuncsT to paint a radial gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

drop_closures_PaintRadialGradientFuncT :: PaintRadialGradientFuncT -> PaintRadialGradientFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintRadialGradientFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintRadialGradientFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the first circle's center

-> Float

y0: Y coordinate of the first circle's center

-> Float

r0: radius of the first circle

-> Float

x1: X coordinate of the second circle's center

-> Float

y1: Y coordinate of the second circle's center

-> Float

r1: radius of the second circle

-> Ptr ()

userData: User data pointer passed to paintFuncsSetRadialGradientFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintRadialGradientFuncT :: MonadIO m => PaintRadialGradientFuncT -> m (GClosure C_PaintRadialGradientFuncT)

Wrap the callback into a GClosure.

mk_PaintRadialGradientFuncT :: C_PaintRadialGradientFuncT -> IO (FunPtr C_PaintRadialGradientFuncT)

Generate a function pointer callable from C code, from a C_PaintRadialGradientFuncT.

noPaintRadialGradientFuncT :: Maybe PaintRadialGradientFuncT

A convenience synonym for Nothing :: Maybe PaintRadialGradientFuncT.

noPaintRadialGradientFuncT_WithClosures :: Maybe PaintRadialGradientFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintRadialGradientFuncT_WithClosures.

wrap_PaintRadialGradientFuncT :: Maybe (Ptr (FunPtr C_PaintRadialGradientFuncT)) -> PaintRadialGradientFuncT_WithClosures -> C_PaintRadialGradientFuncT

Wrap a PaintRadialGradientFuncT into a C_PaintRadialGradientFuncT.

PaintSweepGradientFuncT

type C_PaintSweepGradientFuncT = Ptr PaintFuncsT -> Ptr () -> Ptr ColorLineT -> CFloat -> CFloat -> CFloat -> CFloat -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type PaintSweepGradientFuncT

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the circle's center

-> Float

y0: Y coordinate of the circle's center

-> Float

startAngle: the start angle, in radians

-> Float

endAngle: the end angle, in radians

-> IO ()

A virtual method for the PaintFuncsT to paint a sweep gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

type PaintSweepGradientFuncT_WithClosures

Arguments

 = PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the circle's center

-> Float

y0: Y coordinate of the circle's center

-> Float

startAngle: the start angle, in radians

-> Float

endAngle: the end angle, in radians

-> Ptr ()

userData: User data pointer passed to paintFuncsSetSweepGradientFunc

-> IO ()

A virtual method for the PaintFuncsT to paint a sweep gradient everywhere within the current clip.

The colorLine object contains information about the colors of the gradients. It is only valid for the duration of the callback, you cannot keep it around.

The coordinates of the points are interpreted according to the current transform.

See the OpenType spec COLR section for details on how the points define the direction of the gradient, and how to interpret the colorLine.

Since: 7.0.0

drop_closures_PaintSweepGradientFuncT :: PaintSweepGradientFuncT -> PaintSweepGradientFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_PaintSweepGradientFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_PaintSweepGradientFuncT

-> PaintFuncsT

funcs: paint functions object

-> Ptr ()

paintData: The data accompanying the paint functions in fontPaintGlyph

-> ColorLineT

colorLine: Color information for the gradient

-> Float

x0: X coordinate of the circle's center

-> Float

y0: Y coordinate of the circle's center

-> Float

startAngle: the start angle, in radians

-> Float

endAngle: the end angle, in radians

-> Ptr ()

userData: User data pointer passed to paintFuncsSetSweepGradientFunc

-> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_PaintSweepGradientFuncT :: MonadIO m => PaintSweepGradientFuncT -> m (GClosure C_PaintSweepGradientFuncT)

Wrap the callback into a GClosure.

mk_PaintSweepGradientFuncT :: C_PaintSweepGradientFuncT -> IO (FunPtr C_PaintSweepGradientFuncT)

Generate a function pointer callable from C code, from a C_PaintSweepGradientFuncT.

noPaintSweepGradientFuncT :: Maybe PaintSweepGradientFuncT

A convenience synonym for Nothing :: Maybe PaintSweepGradientFuncT.

noPaintSweepGradientFuncT_WithClosures :: Maybe PaintSweepGradientFuncT_WithClosures

A convenience synonym for Nothing :: Maybe PaintSweepGradientFuncT_WithClosures.

wrap_PaintSweepGradientFuncT :: Maybe (Ptr (FunPtr C_PaintSweepGradientFuncT)) -> PaintSweepGradientFuncT_WithClosures -> C_PaintSweepGradientFuncT

Wrap a PaintSweepGradientFuncT into a C_PaintSweepGradientFuncT.

ReferenceTableFuncT

type C_ReferenceTableFuncT = Ptr FaceT -> Word32 -> Ptr () -> IO (Ptr BlobT)

Type for the callback on the (unwrapped) C side.

type ReferenceTableFuncT

Arguments

 = FaceT

face: an FaceT to reference table for

-> Word32

tag: the tag of the table to reference

-> IO BlobT

Returns: A pointer to the tag table within face

Callback function for faceCreateForTables.

Since: 0.9.2

type ReferenceTableFuncT_WithClosures

Arguments

 = FaceT

face: an FaceT to reference table for

-> Word32

tag: the tag of the table to reference

-> Ptr ()

userData: User data pointer passed by the caller

-> IO BlobT

Returns: A pointer to the tag table within face

Callback function for faceCreateForTables.

Since: 0.9.2

drop_closures_ReferenceTableFuncT :: ReferenceTableFuncT -> ReferenceTableFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_ReferenceTableFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_ReferenceTableFuncT

-> FaceT

face: an FaceT to reference table for

-> Word32

tag: the tag of the table to reference

-> Ptr ()

userData: User data pointer passed by the caller

-> m BlobT

Returns: A pointer to the tag table within face

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ReferenceTableFuncT :: MonadIO m => ReferenceTableFuncT -> m (GClosure C_ReferenceTableFuncT)

Wrap the callback into a GClosure.

mk_ReferenceTableFuncT :: C_ReferenceTableFuncT -> IO (FunPtr C_ReferenceTableFuncT)

Generate a function pointer callable from C code, from a C_ReferenceTableFuncT.

noReferenceTableFuncT :: Maybe ReferenceTableFuncT

A convenience synonym for Nothing :: Maybe ReferenceTableFuncT.

noReferenceTableFuncT_WithClosures :: Maybe ReferenceTableFuncT_WithClosures

A convenience synonym for Nothing :: Maybe ReferenceTableFuncT_WithClosures.

wrap_ReferenceTableFuncT :: Maybe (Ptr (FunPtr C_ReferenceTableFuncT)) -> ReferenceTableFuncT_WithClosures -> C_ReferenceTableFuncT

Wrap a ReferenceTableFuncT into a C_ReferenceTableFuncT.

UnicodeCombiningClassFuncT

type C_UnicodeCombiningClassFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr () -> IO CUInt

Type for the callback on the (unwrapped) C side.

type UnicodeCombiningClassFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> IO UnicodeCombiningClassT

Returns: The UnicodeCombiningClassT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Canonical Combining Class (ccc) property for a specified Unicode code point.

type UnicodeCombiningClassFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO UnicodeCombiningClassT

Returns: The UnicodeCombiningClassT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Canonical Combining Class (ccc) property for a specified Unicode code point.

drop_closures_UnicodeCombiningClassFuncT :: UnicodeCombiningClassFuncT -> UnicodeCombiningClassFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeCombiningClassFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeCombiningClassFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m UnicodeCombiningClassT

Returns: The UnicodeCombiningClassT of unicode

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeCombiningClassFuncT :: MonadIO m => UnicodeCombiningClassFuncT -> m (GClosure C_UnicodeCombiningClassFuncT)

Wrap the callback into a GClosure.

mk_UnicodeCombiningClassFuncT :: C_UnicodeCombiningClassFuncT -> IO (FunPtr C_UnicodeCombiningClassFuncT)

Generate a function pointer callable from C code, from a C_UnicodeCombiningClassFuncT.

noUnicodeCombiningClassFuncT :: Maybe UnicodeCombiningClassFuncT

A convenience synonym for Nothing :: Maybe UnicodeCombiningClassFuncT.

noUnicodeCombiningClassFuncT_WithClosures :: Maybe UnicodeCombiningClassFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeCombiningClassFuncT_WithClosures.

wrap_UnicodeCombiningClassFuncT :: Maybe (Ptr (FunPtr C_UnicodeCombiningClassFuncT)) -> UnicodeCombiningClassFuncT_WithClosures -> C_UnicodeCombiningClassFuncT

Wrap a UnicodeCombiningClassFuncT into a C_UnicodeCombiningClassFuncT.

UnicodeComposeFuncT

type C_UnicodeComposeFuncT = Ptr UnicodeFuncsT -> Word32 -> Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type UnicodeComposeFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

a: The first code point to compose

-> Word32

b: The second code point to compose

-> IO (Int32, Word32)

Returns: true is a,b composed, false otherwise

A virtual method for the UnicodeFuncsT structure.

This method should compose a sequence of two input Unicode code points by canonical equivalence, returning the composed code point in a hb_codepoint_t output parameter (if successful). The method must return an hb_bool_t indicating the success of the composition.

type UnicodeComposeFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

a: The first code point to compose

-> Word32

b: The second code point to compose

-> Ptr ()

userData: user data pointer passed by the caller

-> IO (Int32, Word32)

Returns: true is a,b composed, false otherwise

A virtual method for the UnicodeFuncsT structure.

This method should compose a sequence of two input Unicode code points by canonical equivalence, returning the composed code point in a hb_codepoint_t output parameter (if successful). The method must return an hb_bool_t indicating the success of the composition.

drop_closures_UnicodeComposeFuncT :: UnicodeComposeFuncT -> UnicodeComposeFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeComposeFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeComposeFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

a: The first code point to compose

-> Word32

b: The second code point to compose

-> Ptr ()

userData: user data pointer passed by the caller

-> m (Int32, Word32)

Returns: true is a,b composed, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeComposeFuncT :: MonadIO m => UnicodeComposeFuncT -> m (GClosure C_UnicodeComposeFuncT)

Wrap the callback into a GClosure.

mk_UnicodeComposeFuncT :: C_UnicodeComposeFuncT -> IO (FunPtr C_UnicodeComposeFuncT)

Generate a function pointer callable from C code, from a C_UnicodeComposeFuncT.

noUnicodeComposeFuncT :: Maybe UnicodeComposeFuncT

A convenience synonym for Nothing :: Maybe UnicodeComposeFuncT.

noUnicodeComposeFuncT_WithClosures :: Maybe UnicodeComposeFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeComposeFuncT_WithClosures.

wrap_UnicodeComposeFuncT :: Maybe (Ptr (FunPtr C_UnicodeComposeFuncT)) -> UnicodeComposeFuncT_WithClosures -> C_UnicodeComposeFuncT

Wrap a UnicodeComposeFuncT into a C_UnicodeComposeFuncT.

UnicodeDecomposeCompatibilityFuncT

type C_UnicodeDecomposeCompatibilityFuncT = Ptr UnicodeFuncsT -> Word32 -> Word32 -> Ptr () -> IO Word32

Type for the callback on the (unwrapped) C side.

type UnicodeDecomposeCompatibilityFuncT

Arguments

 = UnicodeFuncsT

ufuncs: a Unicode function structure

-> Word32

u: codepoint to decompose

-> Word32

decomposed: address of codepoint array (of length UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into

-> IO Word32

Returns: number of codepoints in the full compatibility decomposition of u, or 0 if no decomposition available.

Deprecated: (Since version 2.0.0)

Fully decompose u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to decomposed. The complete length of the decomposition will be returned.

If u has no compatibility decomposition, zero should be returned.

The Unicode standard guarantees that a buffer of length UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any compatibility decomposition plus an terminating value of 0. Consequently, decompose must be allocated by the caller to be at least this length. Implementations of this function type must ensure that they do not write past the provided array.

type UnicodeDecomposeCompatibilityFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: a Unicode function structure

-> Word32

u: codepoint to decompose

-> Word32

decomposed: address of codepoint array (of length UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into

-> Ptr ()

userData: user data pointer as passed to unicodeFuncsSetDecomposeCompatibilityFunc

-> IO Word32

Returns: number of codepoints in the full compatibility decomposition of u, or 0 if no decomposition available.

Fully decompose u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to decomposed. The complete length of the decomposition will be returned.

If u has no compatibility decomposition, zero should be returned.

The Unicode standard guarantees that a buffer of length UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any compatibility decomposition plus an terminating value of 0. Consequently, decompose must be allocated by the caller to be at least this length. Implementations of this function type must ensure that they do not write past the provided array.

drop_closures_UnicodeDecomposeCompatibilityFuncT :: UnicodeDecomposeCompatibilityFuncT -> UnicodeDecomposeCompatibilityFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeDecomposeCompatibilityFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeDecomposeCompatibilityFuncT

-> UnicodeFuncsT

ufuncs: a Unicode function structure

-> Word32

u: codepoint to decompose

-> Word32

decomposed: address of codepoint array (of length UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into

-> Ptr ()

userData: user data pointer as passed to unicodeFuncsSetDecomposeCompatibilityFunc

-> m Word32

Returns: number of codepoints in the full compatibility decomposition of u, or 0 if no decomposition available.

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeDecomposeCompatibilityFuncT :: MonadIO m => UnicodeDecomposeCompatibilityFuncT -> m (GClosure C_UnicodeDecomposeCompatibilityFuncT)

Wrap the callback into a GClosure.

mk_UnicodeDecomposeCompatibilityFuncT :: C_UnicodeDecomposeCompatibilityFuncT -> IO (FunPtr C_UnicodeDecomposeCompatibilityFuncT)

Generate a function pointer callable from C code, from a C_UnicodeDecomposeCompatibilityFuncT.

noUnicodeDecomposeCompatibilityFuncT :: Maybe UnicodeDecomposeCompatibilityFuncT

A convenience synonym for Nothing :: Maybe UnicodeDecomposeCompatibilityFuncT.

noUnicodeDecomposeCompatibilityFuncT_WithClosures :: Maybe UnicodeDecomposeCompatibilityFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeDecomposeCompatibilityFuncT_WithClosures.

wrap_UnicodeDecomposeCompatibilityFuncT :: Maybe (Ptr (FunPtr C_UnicodeDecomposeCompatibilityFuncT)) -> UnicodeDecomposeCompatibilityFuncT_WithClosures -> C_UnicodeDecomposeCompatibilityFuncT

Wrap a UnicodeDecomposeCompatibilityFuncT into a C_UnicodeDecomposeCompatibilityFuncT.

UnicodeDecomposeFuncT

type C_UnicodeDecomposeFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr Word32 -> Ptr Word32 -> Ptr () -> IO Int32

Type for the callback on the (unwrapped) C side.

type UnicodeDecomposeFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

ab: The code point to decompose

-> IO (Int32, Word32, Word32)

Returns: true if ab decomposed, false otherwise

A virtual method for the UnicodeFuncsT structure.

This method should decompose an input Unicode code point, returning the two decomposed code points in hb_codepoint_t output parameters (if successful). The method must return an hb_bool_t indicating the success of the composition.

type UnicodeDecomposeFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

ab: The code point to decompose

-> Ptr ()

userData: user data pointer passed by the caller

-> IO (Int32, Word32, Word32)

Returns: true if ab decomposed, false otherwise

A virtual method for the UnicodeFuncsT structure.

This method should decompose an input Unicode code point, returning the two decomposed code points in hb_codepoint_t output parameters (if successful). The method must return an hb_bool_t indicating the success of the composition.

drop_closures_UnicodeDecomposeFuncT :: UnicodeDecomposeFuncT -> UnicodeDecomposeFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeDecomposeFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeDecomposeFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

ab: The code point to decompose

-> Ptr ()

userData: user data pointer passed by the caller

-> m (Int32, Word32, Word32)

Returns: true if ab decomposed, false otherwise

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeDecomposeFuncT :: MonadIO m => UnicodeDecomposeFuncT -> m (GClosure C_UnicodeDecomposeFuncT)

Wrap the callback into a GClosure.

mk_UnicodeDecomposeFuncT :: C_UnicodeDecomposeFuncT -> IO (FunPtr C_UnicodeDecomposeFuncT)

Generate a function pointer callable from C code, from a C_UnicodeDecomposeFuncT.

noUnicodeDecomposeFuncT :: Maybe UnicodeDecomposeFuncT

A convenience synonym for Nothing :: Maybe UnicodeDecomposeFuncT.

noUnicodeDecomposeFuncT_WithClosures :: Maybe UnicodeDecomposeFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeDecomposeFuncT_WithClosures.

wrap_UnicodeDecomposeFuncT :: Maybe (Ptr (FunPtr C_UnicodeDecomposeFuncT)) -> UnicodeDecomposeFuncT_WithClosures -> C_UnicodeDecomposeFuncT

Wrap a UnicodeDecomposeFuncT into a C_UnicodeDecomposeFuncT.

UnicodeEastasianWidthFuncT

type C_UnicodeEastasianWidthFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr () -> IO Word32

Type for the callback on the (unwrapped) C side.

type UnicodeEastasianWidthFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> IO Word32

Deprecated: (Since version 2.0.0)

A virtual method for the UnicodeFuncsT structure.

type UnicodeEastasianWidthFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Word32

A virtual method for the UnicodeFuncsT structure.

drop_closures_UnicodeEastasianWidthFuncT :: UnicodeEastasianWidthFuncT -> UnicodeEastasianWidthFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeEastasianWidthFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeEastasianWidthFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m Word32

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeEastasianWidthFuncT :: MonadIO m => UnicodeEastasianWidthFuncT -> m (GClosure C_UnicodeEastasianWidthFuncT)

Wrap the callback into a GClosure.

mk_UnicodeEastasianWidthFuncT :: C_UnicodeEastasianWidthFuncT -> IO (FunPtr C_UnicodeEastasianWidthFuncT)

Generate a function pointer callable from C code, from a C_UnicodeEastasianWidthFuncT.

noUnicodeEastasianWidthFuncT :: Maybe UnicodeEastasianWidthFuncT

A convenience synonym for Nothing :: Maybe UnicodeEastasianWidthFuncT.

noUnicodeEastasianWidthFuncT_WithClosures :: Maybe UnicodeEastasianWidthFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeEastasianWidthFuncT_WithClosures.

wrap_UnicodeEastasianWidthFuncT :: Maybe (Ptr (FunPtr C_UnicodeEastasianWidthFuncT)) -> UnicodeEastasianWidthFuncT_WithClosures -> C_UnicodeEastasianWidthFuncT

Wrap a UnicodeEastasianWidthFuncT into a C_UnicodeEastasianWidthFuncT.

UnicodeGeneralCategoryFuncT

type C_UnicodeGeneralCategoryFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr () -> IO CUInt

Type for the callback on the (unwrapped) C side.

type UnicodeGeneralCategoryFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> IO UnicodeGeneralCategoryT

Returns: The UnicodeGeneralCategoryT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the General Category property for a specified Unicode code point.

type UnicodeGeneralCategoryFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO UnicodeGeneralCategoryT

Returns: The UnicodeGeneralCategoryT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the General Category property for a specified Unicode code point.

drop_closures_UnicodeGeneralCategoryFuncT :: UnicodeGeneralCategoryFuncT -> UnicodeGeneralCategoryFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeGeneralCategoryFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeGeneralCategoryFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m UnicodeGeneralCategoryT

Returns: The UnicodeGeneralCategoryT of unicode

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeGeneralCategoryFuncT :: MonadIO m => UnicodeGeneralCategoryFuncT -> m (GClosure C_UnicodeGeneralCategoryFuncT)

Wrap the callback into a GClosure.

mk_UnicodeGeneralCategoryFuncT :: C_UnicodeGeneralCategoryFuncT -> IO (FunPtr C_UnicodeGeneralCategoryFuncT)

Generate a function pointer callable from C code, from a C_UnicodeGeneralCategoryFuncT.

noUnicodeGeneralCategoryFuncT :: Maybe UnicodeGeneralCategoryFuncT

A convenience synonym for Nothing :: Maybe UnicodeGeneralCategoryFuncT.

noUnicodeGeneralCategoryFuncT_WithClosures :: Maybe UnicodeGeneralCategoryFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeGeneralCategoryFuncT_WithClosures.

wrap_UnicodeGeneralCategoryFuncT :: Maybe (Ptr (FunPtr C_UnicodeGeneralCategoryFuncT)) -> UnicodeGeneralCategoryFuncT_WithClosures -> C_UnicodeGeneralCategoryFuncT

Wrap a UnicodeGeneralCategoryFuncT into a C_UnicodeGeneralCategoryFuncT.

UnicodeMirroringFuncT

type C_UnicodeMirroringFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr () -> IO Word32

Type for the callback on the (unwrapped) C side.

type UnicodeMirroringFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> IO Word32

Returns: The hb_codepoint_t of the Mirroring Glyph for unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Bi-Directional Mirroring Glyph code point for a specified Unicode code point.

<note>Note: If a code point does not have a specified Bi-Directional Mirroring Glyph defined, the method should return the original code point.</note>

type UnicodeMirroringFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO Word32

Returns: The hb_codepoint_t of the Mirroring Glyph for unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Bi-Directional Mirroring Glyph code point for a specified Unicode code point.

<note>Note: If a code point does not have a specified Bi-Directional Mirroring Glyph defined, the method should return the original code point.</note>

drop_closures_UnicodeMirroringFuncT :: UnicodeMirroringFuncT -> UnicodeMirroringFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeMirroringFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeMirroringFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m Word32

Returns: The hb_codepoint_t of the Mirroring Glyph for unicode

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeMirroringFuncT :: MonadIO m => UnicodeMirroringFuncT -> m (GClosure C_UnicodeMirroringFuncT)

Wrap the callback into a GClosure.

mk_UnicodeMirroringFuncT :: C_UnicodeMirroringFuncT -> IO (FunPtr C_UnicodeMirroringFuncT)

Generate a function pointer callable from C code, from a C_UnicodeMirroringFuncT.

noUnicodeMirroringFuncT :: Maybe UnicodeMirroringFuncT

A convenience synonym for Nothing :: Maybe UnicodeMirroringFuncT.

noUnicodeMirroringFuncT_WithClosures :: Maybe UnicodeMirroringFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeMirroringFuncT_WithClosures.

wrap_UnicodeMirroringFuncT :: Maybe (Ptr (FunPtr C_UnicodeMirroringFuncT)) -> UnicodeMirroringFuncT_WithClosures -> C_UnicodeMirroringFuncT

Wrap a UnicodeMirroringFuncT into a C_UnicodeMirroringFuncT.

UnicodeScriptFuncT

type C_UnicodeScriptFuncT = Ptr UnicodeFuncsT -> Word32 -> Ptr () -> IO CUInt

Type for the callback on the (unwrapped) C side.

type UnicodeScriptFuncT

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> IO ScriptT

Returns: The ScriptT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Script property for a specified Unicode code point.

type UnicodeScriptFuncT_WithClosures

Arguments

 = UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> IO ScriptT

Returns: The ScriptT of unicode

A virtual method for the UnicodeFuncsT structure.

This method should retrieve the Script property for a specified Unicode code point.

drop_closures_UnicodeScriptFuncT :: UnicodeScriptFuncT -> UnicodeScriptFuncT_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_UnicodeScriptFuncT

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_UnicodeScriptFuncT

-> UnicodeFuncsT

ufuncs: A Unicode-functions structure

-> Word32

unicode: The code point to query

-> Ptr ()

userData: User data pointer passed by the caller

-> m ScriptT

Returns: The ScriptT of unicode

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_UnicodeScriptFuncT :: MonadIO m => UnicodeScriptFuncT -> m (GClosure C_UnicodeScriptFuncT)

Wrap the callback into a GClosure.

mk_UnicodeScriptFuncT :: C_UnicodeScriptFuncT -> IO (FunPtr C_UnicodeScriptFuncT)

Generate a function pointer callable from C code, from a C_UnicodeScriptFuncT.

noUnicodeScriptFuncT :: Maybe UnicodeScriptFuncT

A convenience synonym for Nothing :: Maybe UnicodeScriptFuncT.

noUnicodeScriptFuncT_WithClosures :: Maybe UnicodeScriptFuncT_WithClosures

A convenience synonym for Nothing :: Maybe UnicodeScriptFuncT_WithClosures.

wrap_UnicodeScriptFuncT :: Maybe (Ptr (FunPtr C_UnicodeScriptFuncT)) -> UnicodeScriptFuncT_WithClosures -> C_UnicodeScriptFuncT

Wrap a UnicodeScriptFuncT into a C_UnicodeScriptFuncT.