Struct NullPenSource 

pub struct NullPenSource;

A pen source that never has a pen.

Implementations

impl NullPenSource

pub const fn new() -> Self

The one and only value.

Trait Implementations

impl Clone for NullPenSource

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NullPenSource

impl Debug for NullPenSource

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

Formats the value using the given formatter.

impl Default for NullPenSource

fn default() -> Self

Returns the “default value” for a type.

impl PenSource for NullPenSource

fn poll(&mut self, _out: &mut Vec<PenPacket>)

Append every packet buffered since the last poll to out, oldest first, and clear the buffer.

fn capabilities(&self) -> PenCaps

What this source reports. Defaults to PenCaps::NONE, which is the correct answer for a source that yields no packets.

fn polls_off_thread(&self) -> bool

Whether this source fills its buffer from a thread of its own.

fn touch_contact(&self, _os_contact_id: u64) -> Option<Size>

The contact patch most recently reported for an OS touch contact id, in logical pixels.