pub struct ZwpTabletPadRingV2 { /* private fields */ }
Expand description

pad ring

A circular interaction area, such as the touch ring on the Wacom Intuos Pro series tablets.

Events on a ring are logically grouped by the wl_tablet_pad_ring.frame event.

See also the Request enum for this interface.

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impl ZwpTabletPadRingV2

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pub fn source(&self, source: Source)

ring event source

Source information for ring events.

This event does not occur on its own. It is sent before a wp_tablet_pad_ring.frame event and carries the source information for all events within that frame.

The source specifies how this event was generated. If the source is wp_tablet_pad_ring.source.finger, a wp_tablet_pad_ring.stop event will be sent when the user lifts the finger off the device.

This event is optional. If the source is unknown for an interaction, no event is sent.

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pub fn angle(&self, degrees: f64)

angle changed

Sent whenever the angle on a ring changes.

The angle is provided in degrees clockwise from the logical north of the ring in the pad’s current rotation.

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pub fn stop(&self)

interaction stopped

Stop notification for ring events.

For some wp_tablet_pad_ring.source types, a wp_tablet_pad_ring.stop event is sent to notify a client that the interaction with the ring has terminated. This enables the client to implement kinetic scrolling. See the wp_tablet_pad_ring.source documentation for information on when this event may be generated.

Any wp_tablet_pad_ring.angle events with the same source after this event should be considered as the start of a new interaction.

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pub fn frame(&self, time: u32)

end of a ring event sequence

Indicates the end of a set of ring events that logically belong together. A client is expected to accumulate the data in all events within the frame before proceeding.

All wp_tablet_pad_ring events before a wp_tablet_pad_ring.frame event belong logically together. For example, on termination of a finger interaction on a ring the compositor will send a wp_tablet_pad_ring.source event, a wp_tablet_pad_ring.stop event and a wp_tablet_pad_ring.frame event.

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

Trait Implementations§

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impl Borrow<ObjectId> for ZwpTabletPadRingV2

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fn borrow(&self) -> &ObjectId

Immutably borrows from an owned value. Read more
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impl Clone for ZwpTabletPadRingV2

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fn clone(&self) -> ZwpTabletPadRingV2

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ZwpTabletPadRingV2

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

Formats the value using the given formatter. Read more
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impl Hash for ZwpTabletPadRingV2

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq<Weak<ZwpTabletPadRingV2>> for ZwpTabletPadRingV2

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fn eq(&self, other: &Weak<ZwpTabletPadRingV2>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialEq for ZwpTabletPadRingV2

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fn eq(&self, other: &ZwpTabletPadRingV2) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Resource for ZwpTabletPadRingV2

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type Request = Request

The request enum for this interface
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type Event<'event> = Event<'event>

The event enum for this interface
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fn interface() -> &'static Interface

The interface description
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fn id(&self) -> ObjectId

The ID of this object
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fn version(&self) -> u32

The version of this object
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fn data<U: 'static>(&self) -> Option<&U>

Access the user-data associated with this object
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fn object_data(&self) -> Option<&Arc<dyn Any + Send + Sync>>

Access the raw data associated with this object. Read more
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fn handle(&self) -> &WeakHandle

Access the backend handle associated with this object
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fn from_id(conn: &DisplayHandle, id: ObjectId) -> Result<Self, InvalidId>

Create an object resource from its ID Read more
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fn send_event(&self, evt: Self::Event<'_>) -> Result<(), InvalidId>

Send an event to this object
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fn parse_request( conn: &DisplayHandle, msg: Message<ObjectId, OwnedFd> ) -> Result<(Self, Self::Request), DispatchError>

Parse a event for this object Read more
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fn write_event<'a>( &self, conn: &DisplayHandle, msg: Self::Event<'a> ) -> Result<Message<ObjectId, BorrowedFd<'a>>, InvalidId>

Serialize an event for this object Read more
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fn client(&self) -> Option<Client>

The client owning this object Read more
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fn is_alive(&self) -> bool

Checks if the Wayland object associated with this proxy is still alive
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fn post_error(&self, code: impl Into<u32>, error: impl Into<String>)

Trigger a protocol error on this object Read more
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fn downgrade(&self) -> Weak<Self>

Creates a weak handle to this object Read more
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impl Eq for ZwpTabletPadRingV2

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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Mutably borrows from an owned value. Read more
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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type Owned = T

The resulting type after obtaining ownership.
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Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.