FontMapProtocol

public protocol FontMapProtocol

PangoCairoFontMap is an interface exported by font maps for use with Cairo.

The actual type of the font map will depend on the particular font technology Cairo was compiled to use.

The FontMapProtocol protocol exposes the methods and properties of an underlying PangoCairoFontMap 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 FontMap. Alternatively, use FontMapRef 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 PangoCairoFontMap instance.

    Declaration

    Swift

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

    Typed pointer to the underlying PangoCairoFontMap instance.

    Default Implementation

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

    Declaration

    Swift

    var font_map_ptr: UnsafeMutablePointer<PangoCairoFontMap>! { get }
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  • Required Initialiser for types conforming to FontMapProtocol

    Declaration

    Swift

    init(raw: UnsafeMutableRawPointer)
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FontMap Interface: FontMapProtocol extension (methods and fields)

  • createContext() Extension method

    Create a PangoContext for the given fontmap.

    create_context is deprecated: Use pango_font_map_create_context() instead.

    Declaration

    Swift

    @available(*, deprecated)
@inlinable
func createContext() -> Pango.ContextRef!
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  • getFontType() Extension method

    Gets the type of Cairo font backend that fontmap uses.

    Declaration

    Swift

    @inlinable
func getFontType() -> cairo_font_type_t
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  • getResolution() Extension method

    Gets the resolution for the fontmap.

    See [methodPangoCairo.FontMap.set_resolution].

    Declaration

    Swift

    @inlinable
func getResolution() -> CDouble
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  • setDefault() Extension method

    Sets a default PangoCairoFontMap to use with Cairo.

    This can be used to change the Cairo font backend that the default fontmap uses for example. The old default font map is unreffed and the new font map referenced.

    Note that since Pango 1.32.6, the default fontmap is per-thread. This function only changes the default fontmap for the current thread. Default fontmaps of existing threads are not changed. Default fontmaps of any new threads will still be created using [funcPangoCairo.FontMap.new].

    A value of nil for fontmap will cause the current default font map to be released and a new default font map to be created on demand, using [funcPangoCairo.FontMap.new].

    Declaration

    Swift

    @inlinable
func setDefault()
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  • setResolution(dpi:) Extension method

    Sets the resolution for the fontmap.

    This is a scale factor between points specified in a PangoFontDescription and Cairo units. The default value is 96, meaning that a 10 point font will be 13 units high. (10 * 96. / 72. = 13.3).

    Declaration

    Swift

    @inlinable
func setResolution(dpi: CDouble)
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  • fontType Extension method

    Gets the type of Cairo font backend that fontmap uses.

    Declaration

    Swift

    @inlinable
var fontType: cairo_font_type_t { get }
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  • resolution Extension method

    Gets the resolution for the fontmap.

    See [methodPangoCairo.FontMap.set_resolution].

    Declaration

    Swift

    @inlinable
var resolution: CDouble { get nonmutating set }
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