Copyright	Will Thompson and Iñaki García Etxebarria
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
Language	Haskell2010

GI.Pango.Structs.GlyphGeometry

Contents

Exported types
Methods
Properties

Description

The PangoGlyphGeometry structure contains width and positioning information for a single glyph.

Note that width is not guaranteed to be the same as the glyph extents. Kerning and other positioning applied during shaping will affect both the width and the xOffset for the glyphs in the glyph string that results from shaping.

The information in this struct is intended for rendering the glyphs, as follows:

Assume the current point is (x, y)
Render the current glyph at (x + x_offset, y + y_offset),
Advance the current point to (x + width, y)
Render the next glyph

Synopsis

newtype GlyphGeometry = GlyphGeometry (ManagedPtr GlyphGeometry)
newZeroGlyphGeometry :: MonadIO m => m GlyphGeometry
getGlyphGeometryWidth :: MonadIO m => GlyphGeometry -> m Int32
setGlyphGeometryWidth :: MonadIO m => GlyphGeometry -> Int32 -> m ()
getGlyphGeometryXOffset :: MonadIO m => GlyphGeometry -> m Int32
setGlyphGeometryXOffset :: MonadIO m => GlyphGeometry -> Int32 -> m ()
getGlyphGeometryYOffset :: MonadIO m => GlyphGeometry -> m Int32
setGlyphGeometryYOffset :: MonadIO m => GlyphGeometry -> Int32 -> m ()

Exported types

newtype GlyphGeometry Source #

Memory-managed wrapper type.

Constructors

GlyphGeometry (ManagedPtr GlyphGeometry)

Instances

Instances details

Eq GlyphGeometry Source #
Instance details Defined in GI.Pango.Structs.GlyphGeometry Methods (==) :: GlyphGeometry -> GlyphGeometry -> Bool # (/=) :: GlyphGeometry -> GlyphGeometry -> Bool #
BoxedPtr GlyphGeometry Source #
Instance details Defined in GI.Pango.Structs.GlyphGeometry Methods boxedPtrCopy :: GlyphGeometry -> IO GlyphGeometry # boxedPtrFree :: GlyphGeometry -> IO () #
CallocPtr GlyphGeometry Source #
Instance details Defined in GI.Pango.Structs.GlyphGeometry Methods boxedPtrCalloc :: IO (Ptr GlyphGeometry) #
ManagedPtrNewtype GlyphGeometry Source #
Instance details Defined in GI.Pango.Structs.GlyphGeometry Methods toManagedPtr :: GlyphGeometry -> ManagedPtr GlyphGeometry #
tag ~ 'AttrSet => Constructible GlyphGeometry tag Source #
Instance details Defined in GI.Pango.Structs.GlyphGeometry Methods new :: MonadIO m => (ManagedPtr GlyphGeometry -> GlyphGeometry) -> [AttrOp GlyphGeometry tag] -> m GlyphGeometry #

newZeroGlyphGeometry :: MonadIO m => m GlyphGeometry Source #

Construct a GlyphGeometry struct initialized to zero.

Methods

Properties

width

the logical width to use for the the character.

getGlyphGeometryWidth :: MonadIO m => GlyphGeometry -> m Int32 Source #

Get the value of the “width” field. When overloading is enabled, this is equivalent to

get glyphGeometry #width

setGlyphGeometryWidth :: MonadIO m => GlyphGeometry -> Int32 -> m () Source #

Set the value of the “width” field. When overloading is enabled, this is equivalent to

set glyphGeometry [ #width := value ]

xOffset

horizontal offset from nominal character position.

getGlyphGeometryXOffset :: MonadIO m => GlyphGeometry -> m Int32 Source #

Get the value of the “x_offset” field. When overloading is enabled, this is equivalent to

get glyphGeometry #xOffset

setGlyphGeometryXOffset :: MonadIO m => GlyphGeometry -> Int32 -> m () Source #

Set the value of the “x_offset” field. When overloading is enabled, this is equivalent to

set glyphGeometry [ #xOffset := value ]

yOffset

vertical offset from nominal character position.

getGlyphGeometryYOffset :: MonadIO m => GlyphGeometry -> m Int32 Source #

Get the value of the “y_offset” field. When overloading is enabled, this is equivalent to

get glyphGeometry #yOffset

setGlyphGeometryYOffset :: MonadIO m => GlyphGeometry -> Int32 -> m () Source #

Set the value of the “y_offset” field. When overloading is enabled, this is equivalent to

set glyphGeometry [ #yOffset := value ]