Struct ZwpTabletPadDialV2

pub struct ZwpTabletPadDialV2 { /* private fields */ }

Available on crate feature wayland and Linux only.

pad dial

A rotary control, e.g. a dial or a wheel.

Events on a dial are logically grouped by the zwp_tablet_pad_dial_v2.frame event.

See also the Request enum for this interface.

Implementations

impl ZwpTabletPadDialV2

pub fn delta(&self, value120: i32)

delta movement

Sent whenever the position on a dial changes.

This event carries the wheel delta as multiples or fractions of 120 with each multiple of 120 representing one logical wheel detent. For example, an axis_value120 of 30 is one quarter of a logical wheel step in the positive direction, a value120 of -240 are two logical wheel steps in the negative direction within the same hardware event. See the wl_pointer.axis_value120 for more details.

The value120 must not be zero.

pub fn frame(&self, time: u32)

end of a dial event sequence

Indicates the end of a set of events that represent one logical hardware dial event. A client is expected to accumulate the data in all events within the frame before proceeding.

All zwp_tablet_pad_dial_v2 events before a zwp_tablet_pad_dial_v2.frame event belong logically together.

A zwp_tablet_pad_dial_v2.frame event is sent for every logical event group, even if the group only contains a single zwp_tablet_pad_dial_v2 event. Specifically, a client may get a sequence: delta, frame, delta, frame, etc.

Trait Implementations

impl Borrow<ObjectId> for ZwpTabletPadDialV2

fn borrow(&self) -> &ObjectId

Immutably borrows from an owned value.

impl Clone for ZwpTabletPadDialV2

fn clone(&self) -> ZwpTabletPadDialV2

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ZwpTabletPadDialV2

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Hash for ZwpTabletPadDialV2

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<Weak<ZwpTabletPadDialV2>> for ZwpTabletPadDialV2

fn eq(&self, other: &Weak<ZwpTabletPadDialV2>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for ZwpTabletPadDialV2

fn eq(&self, other: &ZwpTabletPadDialV2) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Resource for ZwpTabletPadDialV2

type Request = Request

The request enum for this interface

type Event<'event> = Event<'event>

The event enum for this interface

fn interface() -> &'static Interface

The interface description

fn id(&self) -> ObjectId

The ID of this object

fn version(&self) -> u32

The version of this object

fn data<U>(&self) -> Option<&U>

where U: 'static,

Access the user-data associated with this object

fn object_data(&self) -> Option<&Arc<dyn Any + Sync + Send>>

Access the raw data associated with this object.

fn handle(&self) -> &WeakHandle

Access the backend handle associated with this object

fn from_id( conn: &DisplayHandle, id: ObjectId, ) -> Result<ZwpTabletPadDialV2, InvalidId>

Create an object resource from its ID

fn send_event( &self, evt: <ZwpTabletPadDialV2 as Resource>::Event<'_>, ) -> Result<(), InvalidId>

Send an event to this object

fn parse_request( conn: &DisplayHandle, msg: Message<ObjectId, OwnedFd>, ) -> Result<(ZwpTabletPadDialV2, <ZwpTabletPadDialV2 as Resource>::Request), DispatchError>

Parse a event for this object

fn write_event<'a>( &self, conn: &DisplayHandle, msg: <ZwpTabletPadDialV2 as Resource>::Event<'a>, ) -> Result<Message<ObjectId, BorrowedFd<'a>>, InvalidId>

Serialize an event for this object

fn client(&self) -> Option<Client>

The client owning this object

fn is_alive(&self) -> bool

Checks if the Wayland object associated with this proxy is still alive

fn post_error(&self, code: impl Into<u32>, error: impl Into<String>)

Trigger a protocol error on this object

fn downgrade(&self) -> Weak<Self>

Creates a weak handle to this object

impl Eq for ZwpTabletPadDialV2