GlyphVisAttrProtocol

public protocol GlyphVisAttrProtocol

A PangoGlyphVisAttr structure communicates information between the shaping and rendering phases.

Currently, it contains cluster start and color information. More attributes may be added in the future.

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.

The GlyphVisAttrProtocol protocol exposes the methods and properties of an underlying PangoGlyphVisAttr instance. The default implementation of these can be found in the protocol extension below. For a concrete class that implements these methods and properties, see GlyphVisAttr. Alternatively, use GlyphVisAttrRef as a lighweight, unowned reference if you already have an instance you just want to use.

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  • ptr

    Untyped pointer to the underlying PangoGlyphVisAttr instance.

    Declaration

    Swift

    var ptr: UnsafeMutableRawPointer! { get }
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  • _ptr Default implementation

    Typed pointer to the underlying PangoGlyphVisAttr instance.

    Default Implementation

    Return the stored, untyped pointer as a typed pointer to the PangoGlyphVisAttr instance.

    Declaration

    Swift

    var _ptr: UnsafeMutablePointer<PangoGlyphVisAttr>! { get }
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  • Required Initialiser for types conforming to GlyphVisAttrProtocol

    Declaration

    Swift

    init(raw: UnsafeMutableRawPointer)
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GlyphVisAttr Record: GlyphVisAttrProtocol extension (methods and fields)

  • isClusterStart Extension method

    set for the first logical glyph in each cluster.

    Declaration

    Swift

    @inlinable
var isClusterStart: guint { get set }
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  • isColor Extension method

    set if the the font will render this glyph with color. Since 1.50

    Declaration

    Swift

    @inlinable
var isColor: guint { get set }
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