AspectFrameProtocol

public protocol AspectFrameProtocol : FrameProtocol

The GtkAspectFrame is useful when you want pack a widget so that it can resize but always retains the same aspect ratio. For instance, one might be drawing a small preview of a larger image. GtkAspectFrame derives from GtkFrame, so it can draw a label and a frame around the child. The frame will be “shrink-wrapped” to the size of the child.

CSS nodes

GtkAspectFrame uses a CSS node with name frame.

The AspectFrameProtocol protocol exposes the methods and properties of an underlying GtkAspectFrame 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 AspectFrame. Alternatively, use AspectFrameRef 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 GtkAspectFrame instance.

    Declaration

    Swift

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

    Typed pointer to the underlying GtkAspectFrame instance.

    Default Implementation

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

    Declaration

    Swift

    var aspect_frame_ptr: UnsafeMutablePointer<GtkAspectFrame>! { get }
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  • Required Initialiser for types conforming to AspectFrameProtocol

    Declaration

    Swift

    init(raw: UnsafeMutableRawPointer)
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AspectFrame Class

  • Bind a AspectFramePropertyName source property to a given target object.

    Declaration

    Swift

    @discardableResult
@inlinable
func bind<Q, T>(property source_property: AspectFramePropertyName, to target: T, _ target_property: Q, flags f: BindingFlags = .default, transformFrom transform_from: @escaping GLibObject.ValueTransformer = { $0.transform(destValue: $1) }, transformTo transform_to: @escaping GLibObject.ValueTransformer = { $0.transform(destValue: $1) }) -> BindingRef! where Q : PropertyNameProtocol, T : ObjectProtocol

    Parameters

    source_property

    the source property to bind
    target

    the target object to bind to
    target_property

    the target property to bind to
    flags

    the flags to pass to the Binding
    transform_from

    ValueTransformer to use for forward transformation
    transform_to

    ValueTransformer to use for backwards transformation

    Return Value

    binding reference or nil in case of an error

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  • get(property:) Extension method

    Get the value of a AspectFrame property

    Declaration

    Swift

    @inlinable
func get(property: AspectFramePropertyName) -> GLibObject.Value

    Parameters

    property

    the property to get the value for

    Return Value

    the value of the named property

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  • set(property:value:) Extension method

    Set the value of a AspectFrame property. Note that this will only have an effect on properties that are writable and not construct-only!

    Declaration

    Swift

    @inlinable
func set(property: AspectFramePropertyName, value v: GLibObject.Value)

    Parameters

    property

    the property to get the value for

    Return Value

    the value of the named property

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AspectFrame Class: AspectFrameProtocol extension (methods and fields)