DevicePadProtocol

public protocol DevicePadProtocol : DeviceProtocol

The DevicePadProtocol protocol exposes the methods and properties of an underlying GdkDevicePad 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 DevicePad. Alternatively, use DevicePadRef as a lighweight, unowned reference if you already have an instance you just want to use.

GdkDevicePad is an interface implemented by devices of type GDK_SOURCE_TABLET_PAD, it allows querying the features provided by the pad device.

Tablet pads may contain one or more groups, each containing a subset of the buttons/rings/strips available. gdk_device_pad_get_n_groups() can be used to obtain the number of groups, gdk_device_pad_get_n_features() and gdk_device_pad_get_feature_group() can be combined to find out the number of buttons/rings/strips the device has, and how are they grouped.

Each of those groups have different modes, which may be used to map each individual pad feature to multiple actions. Only one mode is effective (current) for each given group, different groups may have different current modes. The number of available modes in a group can be found out through gdk_device_pad_get_group_n_modes(), and the current mode for a given group will be notified through the GdkEventPadGroupMode event.

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  • ptr

    Untyped pointer to the underlying GdkDevicePad instance.

    Declaration

    Swift

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

    Typed pointer to the underlying GdkDevicePad instance.

    Default Implementation

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

    Declaration

    Swift

    var device_pad_ptr: UnsafeMutablePointer<GdkDevicePad>! { get }
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  • Required Initialiser for types conforming to DevicePadProtocol

    Declaration

    Swift

    init(raw: UnsafeMutableRawPointer)
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DevicePad Interface

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

    Declaration

    Swift

    @discardableResult
@inlinable
func bind<Q, T>(property source_property: DevicePadPropertyName, 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 DevicePad property

    Declaration

    Swift

    @inlinable
func get(property: DevicePadPropertyName) -> 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 DevicePad property. Note that this will only have an effect on properties that are writable and not construct-only!

    Declaration

    Swift

    @inlinable
func set(property: DevicePadPropertyName, 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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DevicePad Interface: DevicePadProtocol extension (methods and fields)

  • Returns the group the given feature and idx belong to, or -1 if feature/index do not exist in pad.

    Declaration

    Swift

    @inlinable
func getFeatureGroup(feature: GdkDevicePadFeature, featureIdx: Int) -> Int
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  • getGroupNModes(groupIdx:) Extension method

    Returns the number of modes that group may have.

    Declaration

    Swift

    @inlinable
func getGroupNModes(groupIdx: Int) -> Int
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  • getNFeatures(feature:) Extension method

    Returns the number of features a tablet pad has.

    Declaration

    Swift

    @inlinable
func getNFeatures(feature: GdkDevicePadFeature) -> Int
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  • getNGroups() Extension method

    Returns the number of groups this pad device has. Pads have at least one group. A pad group is a subcollection of buttons/strip/rings that is affected collectively by a same current mode.

    Declaration

    Swift

    @inlinable
func getNGroups() -> Int
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  • nGroups Extension method

    Returns the number of groups this pad device has. Pads have at least one group. A pad group is a subcollection of buttons/strip/rings that is affected collectively by a same current mode.

    Declaration

    Swift

    @inlinable
var nGroups: Int { get }
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