FontMetricsRef

public struct FontMetricsRef : FontMetricsProtocol

A PangoFontMetrics structure holds the overall metric information for a font.

The information in a PangoFontMetrics structure may be restricted to a script. The fields of this structure are private to implementations of a font backend. See the documentation of the corresponding getters for documentation of their meaning.

For an overview of the most important metrics, see:

<picture> <source srcset=“fontmetrics-dark.png” media=“(prefers-color-scheme: dark)”> <img alt=“Font metrics” src=“fontmetrics-light.png”> </picture>

The FontMetricsRef type acts as a lightweight Swift reference to an underlying PangoFontMetrics instance. It exposes methods that can operate on this data type through FontMetricsProtocol conformance. Use FontMetricsRef only as an unowned reference to an existing PangoFontMetrics instance.

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  • ptr 
    Untyped pointer to the underlying `PangoFontMetrics` instance.

    For type-safe access, use the generated, typed pointer font_metrics_ptr property instead.

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer!
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FontMetrics Record

  • Designated initialiser from the underlying C data type

    Declaration

    Swift

    @inlinable
init(_ p: UnsafeMutablePointer<PangoFontMetrics>)
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  • Designated initialiser from a constant pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init(_ p: UnsafePointer<PangoFontMetrics>)
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  • Conditional initialiser from an optional pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafeMutablePointer<PangoFontMetrics>?)
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  • Conditional initialiser from an optional, non-mutable pointer to the underlying C data type

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafePointer<PangoFontMetrics>?)
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  • Conditional initialiser from an optional gpointer

    Declaration

    Swift

    @inlinable
init!(gpointer g: gpointer?)
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  • Conditional initialiser from an optional, non-mutable gconstpointer

    Declaration

    Swift

    @inlinable
init!(gconstpointer g: gconstpointer?)
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  • Reference intialiser for a related type that implements FontMetricsProtocol

    Declaration

    Swift

    @inlinable
init<T>(_ other: T) where T : FontMetricsProtocol
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to FontMetricsProtocol.

    Declaration

    Swift

    @inlinable
init<T>(cPointer: UnsafeMutablePointer<T>)
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to FontMetricsProtocol.

    Declaration

    Swift

    @inlinable
init<T>(constPointer: UnsafePointer<T>)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to FontMetricsProtocol.

    Declaration

    Swift

    @inlinable
init(mutating raw: UnsafeRawPointer)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to FontMetricsProtocol.

    Declaration

    Swift

    @inlinable
init(raw: UnsafeMutableRawPointer)
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  • Unsafe untyped initialiser. Do not use unless you know the underlying data type the pointer points to conforms to FontMetricsProtocol.

    Declaration

    Swift

    @inlinable
init(opaquePointer: OpaquePointer)
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