Enum PointerSource 

#[repr(C)]
pub enum PointerSource {
    Unknown = 0,
    Mouse = 1,
    Touchpad = 2,
    Trackball = 3,
    Trackpoint = 4,
    Touchscreen = 5,
    Pen = 6,
    Eraser = 7,
}

What kind of device produced a pointer event.

The same discriminator the web calls PointerEvent.pointerType, GTK calls GdkInputSource and Qt calls QInputDevice::DeviceType. Azul splits Mouse, Touch and Pen into separate FILTERS, which is a stronger guarantee than a runtime tag — but it cannot express the distinctions WITHIN the pointer family, and those matter:

• A touchpad and a mouse both arrive as a synthesized pointer. Telling them apart is what lets an app know a pinch gesture is possible at all, and whether “scroll” means a wheel detent or a continuous drag.
• A trackball and a trackpoint have their own acceleration and scroll semantics, which is why GTK and Android name them separately.
• A pen reported through the pointer path (a stylus acting as a mouse, the Wayland tablet bridge) is not a finger and not a mouse.

Variants

Unknown = 0

The platform did not say.

Mouse = 1

A mouse.

Touchpad = 2

An indirect touch surface — a laptop trackpad or a Magic Trackpad.

Trackball = 3

A trackball.

Trackpoint = 4

A pointing stick (ThinkPad nub).

Touchscreen = 5

A direct touch surface reporting through the pointer path.

Pen = 6

A stylus tip.

Eraser = 7

The inverted end of a stylus.

Trait Implementations

impl Clone for PointerSource

fn clone(&self) -> PointerSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PointerSource

impl Debug for PointerSource

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

Formats the value using the given formatter.

impl Eq for PointerSource

impl Hash for PointerSource

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

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 Ord for PointerSource

fn cmp(&self, other: &PointerSource) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for PointerSource

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for PointerSource

fn partial_cmp(&self, other: &PointerSource) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for PointerSource