RendererClassRef

public struct RendererClassRef : RendererClassProtocol

Class structure for PangoRenderer.

The following vfuncs take user space coordinates in Pango units and have default implementations:

  • draw_glyphs
  • draw_rectangle
  • draw_error_underline
  • draw_shape
  • draw_glyph_item

The default draw_shape implementation draws nothing.

The following vfuncs take device space coordinates as doubles and must be implemented:

  • draw_trapezoid
  • draw_glyph

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

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

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

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer!
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Rectangle Record: RectangleProtocol extension (methods and fields)

RendererClass Record

  • Designated initialiser from the underlying C data type

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafePointer<PangoRendererClass>?)
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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 RendererClassProtocol

    Declaration

    Swift

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

    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 RendererClassProtocol.

    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 RendererClassProtocol.

    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 RendererClassProtocol.

    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 RendererClassProtocol.

    Declaration

    Swift

    @inlinable
init(opaquePointer: OpaquePointer)
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