CenterBoxRef

public struct CenterBoxRef : CenterBoxProtocol, GWeakCapturing

GtkCenterBox arranges three children in a row, keeping the middle child centered as well as possible.

An example GtkCenterBox

To add children to GtkCenterBox, use [methodGtk.CenterBox.set_start_widget], [methodGtk.CenterBox.set_center_widget] and [methodGtk.CenterBox.set_end_widget].

The sizing and positioning of children can be influenced with the align and expand properties of the children.

GtkCenterBox as GtkBuildable

The GtkCenterBox implementation of the GtkBuildable interface supports placing children in the 3 positions by specifying “start”, “center” or “end” as the “type” attribute of a <child> element.

CSS nodes

GtkCenterBox uses a single CSS node with the name “box”,

The first child of the GtkCenterBox will be allocated depending on the text direction, i.e. in left-to-right layouts it will be allocated on the left and in right-to-left layouts on the right.

In vertical orientation, the nodes of the children are arranged from top to bottom.

Accessibility

GtkCenterBox uses the GTK_ACCESSIBLE_ROLE_GROUP role.

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

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

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

    Declaration

    Swift

    public let ptr: UnsafeMutableRawPointer!
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CenterBox Class

  • Designated initialiser from the underlying C data type

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

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

    Declaration

    Swift

    @inlinable
init!(_ maybePointer: UnsafePointer<GtkCenterBox>?)
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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 CenterBoxProtocol

    Declaration

    Swift

    @inlinable
init<T>(_ other: T) where T : CenterBoxProtocol
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  • This factory is syntactic sugar for setting weak pointers wrapped in GWeak<T>

    Declaration

    Swift

    @inlinable
static func unowned<T>(_ other: T) -> CenterBoxRef where T : CenterBoxProtocol
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  • Unsafe typed initialiser. Do not use unless you know the underlying data type the pointer points to conforms to CenterBoxProtocol.

    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 CenterBoxProtocol.

    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 CenterBoxProtocol.

    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 CenterBoxProtocol.

    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 CenterBoxProtocol.

    Declaration

    Swift

    @inlinable
init(opaquePointer: OpaquePointer)
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  • Creates a new GtkCenterBox.

    Declaration

    Swift

    @inlinable
init()
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