Enum ScrollRelativeDirection 

#[non_exhaustive]
pub enum ScrollRelativeDirection {
    Identical,
    Inverted,
    Unknown,
}

Available on crate feature v4_20 only.

Used in scroll events, to announce the direction relative to physical motion.

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.

Identical

Physical motion and event motion are the same

Inverted

Physical motion is inverted relative to event motion

Unknown

Relative motion is unknown on this device or backend

Trait Implementations

impl Clone for ScrollRelativeDirection

fn clone(&self) -> ScrollRelativeDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollRelativeDirection

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

Formats the value using the given formatter.

impl From<ScrollRelativeDirection> for Value

fn from(v: ScrollRelativeDirection) -> Self

Converts to this type from the input type.

impl<'a> FromValue<'a> for ScrollRelativeDirection

type Checker = GenericValueTypeChecker<ScrollRelativeDirection>

Value type checker.

unsafe fn from_value(value: &'a Value) -> Self

Get the contained value from a Value.

impl HasParamSpec for ScrollRelativeDirection

type ParamSpec = ParamSpecEnum

type SetValue = ScrollRelativeDirection

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(&str, ScrollRelativeDirection) -> ParamSpecEnumBuilder<'_, ScrollRelativeDirection>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for ScrollRelativeDirection

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 ScrollRelativeDirection

fn cmp(&self, other: &ScrollRelativeDirection) -> 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.

impl PartialEq for ScrollRelativeDirection

fn eq(&self, other: &ScrollRelativeDirection) -> 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 PartialOrd for ScrollRelativeDirection

fn partial_cmp(&self, other: &ScrollRelativeDirection) -> 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 StaticType for ScrollRelativeDirection

fn static_type() -> Type

Returns the type identifier of Self.

impl ToValue for ScrollRelativeDirection

fn to_value(&self) -> Value

Convert a value to a Value.

fn value_type(&self) -> Type

Returns the type identifier of self.

impl ValueType for ScrollRelativeDirection

type Type = ScrollRelativeDirection

Type to get the Type from.

impl Copy for ScrollRelativeDirection

impl Eq for ScrollRelativeDirection

impl StructuralPartialEq for ScrollRelativeDirection