RectangleRef

public struct RectangleRef : RectangleProtocol

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

A GdkRectangle data type for representing rectangles.

GdkRectangle is identical to cairo_rectangle_t. Together with Cairo’s cairo_region_t data type, these are the central types for representing sets of pixels.

The intersection of two rectangles can be computed with [methodGdk.Rectangle.intersect]; to find the union of two rectangles use [methodGdk.Rectangle.union].

The cairo_region_t type provided by Cairo is usually used for managing non-rectangular clipping of graphical operations.

The Graphene library has a number of other data types for regions and volumes in 2D and 3D.

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

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

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer!
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Rectangle Record

  • Designated initialiser from the underlying C data type

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafePointer<GdkRectangle>?)
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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 RectangleProtocol

    Declaration

    Swift

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

    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 RectangleProtocol.

    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 RectangleProtocol.

    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 RectangleProtocol.

    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 RectangleProtocol.

    Declaration

    Swift

    @inlinable
init(opaquePointer: OpaquePointer)
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