Enum wayland_protocols::unstable::pointer_gestures::v1::client::zwp_pointer_gesture_swipe_v1::Event

#[non_exhaustive]
pub enum Event {
    Begin {
        serial: u32,
        time: u32,
        surface: WlSurface,
        fingers: u32,
    },
    Update {
        time: u32,
        dx: f64,
        dy: f64,
    },
    End {
        serial: u32,
        time: u32,
        cancelled: i32,
    },
}

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Begin

Fields

serial: u32

time: u32

surface: WlSurface

fingers: u32

multi-finger swipe begin

This event is sent when a multi-finger swipe gesture is detected on the device.

Update

Fields

time: u32

dx: f64

dy: f64

multi-finger swipe motion

This event is sent when a multi-finger swipe gesture changes the position of the logical center.

The dx and dy coordinates are relative coordinates of the logical center of the gesture compared to the previous event.

End

Fields

serial: u32

time: u32

cancelled: i32

multi-finger swipe end

This event is sent when a multi-finger swipe gesture ceases to be valid. This may happen when one or more fingers are lifted or the gesture is cancelled.

When a gesture is cancelled, the client should undo state changes caused by this gesture. What causes a gesture to be cancelled is implementation-dependent.

Trait Implementations

impl Debug for Event

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

Formats the value using the given formatter.

impl MessageGroup for Event

const MESSAGES: &'static [MessageDesc] = _

Wire representation of this MessageGroup

type Map = ProxyMap

The wrapper type for ObjectMap allowing the mapping of Object and NewId arguments to the object map during parsing.

fn is_destructor(&self) -> bool

Whether this message is a destructor

fn opcode(&self) -> u16

The opcode of this message

fn since(&self) -> u32

The minimal object version for which this message exists

fn child<Meta: ObjectMetadata>( opcode: u16, version: u32, meta: &Meta ) -> Option<Object<Meta>>

Retrieve the child Object associated with this message if any

fn from_raw(msg: Message, map: &mut Self::Map) -> Result<Self, ()>

Construct a message from its raw representation

fn into_raw(self, sender_id: u32) -> Message

Turn this message into its raw representation

unsafe fn from_raw_c( obj: *mut c_void, opcode: u32, args: *const wl_argument ) -> Result<Event, ()>

Construct a message of this group from its C representation

fn as_raw_c_in<F, T>(self, f: F) -> T

where F: FnOnce(u32, &mut [wl_argument]) -> T,

Build a C representation of this message