GI.Pango.Structs.GlyphVisAttr

The PangoGlyphVisAttr is used to communicate information between the shaping phase and the rendering phase. More attributes may be added in the future.

Exported types

newtype GlyphVisAttr

Memory-managed wrapper type.

Constructors

GlyphVisAttr (ManagedPtr GlyphVisAttr)

Instances

WrappedPtr GlyphVisAttr

Defined in GI.Pango.Structs.GlyphVisAttr

Methods

wrappedPtrCalloc :: IO (Ptr GlyphVisAttr)

wrappedPtrCopy :: GlyphVisAttr -> IO GlyphVisAttr

wrappedPtrFree :: Maybe (GDestroyNotify GlyphVisAttr)

tag ~ AttrSet => Constructible GlyphVisAttr tag

Defined in GI.Pango.Structs.GlyphVisAttr

Methods

new :: MonadIO m => (ManagedPtr GlyphVisAttr -> GlyphVisAttr) -> [AttrOp GlyphVisAttr tag] -> m GlyphVisAttr

newZeroGlyphVisAttr :: MonadIO m => m GlyphVisAttr

Construct a GlyphVisAttr struct initialized to zero.

noGlyphVisAttr :: Maybe GlyphVisAttr

A convenience alias for Nothing :: Maybe GlyphVisAttr.

Properties

isClusterStart

set for the first logical glyph in each cluster. (Clusters are stored in visual order, within the cluster, glyphs are always ordered in logical order, since visual order is meaningless; that is, in Arabic text, accent glyphs follow the glyphs for the base character.)

getGlyphVisAttrIsClusterStart :: MonadIO m => GlyphVisAttr -> m Word32

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

get glyphVisAttr #isClusterStart

setGlyphVisAttrIsClusterStart :: MonadIO m => GlyphVisAttr -> Word32 -> m ()

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

set glyphVisAttr [ #isClusterStart := value ]