Enum ScrollDirection

#[non_exhaustive]
pub enum ScrollDirection {
    Up,
    Down,
    Left,
    Right,
    Smooth,
}

Direction of a pointer scroll event.

The ScrollDirection::Smooth value implies that the ScrollEvent has precise scrolling delta information.

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.

Up

Scroll up

Down

Scroll down

Left

Scroll left

Right

Scroll right

Smooth

Precise scrolling delta (available in 1.10)

Trait Implementations

impl Clone for ScrollDirection

fn clone(&self) -> ScrollDirection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollDirection

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

Formats the value using the given formatter.

impl Display for ScrollDirection

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

Formats the value using the given formatter.

impl<'a> FromValue<'a> for ScrollDirection

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

Safety

impl<'a> FromValueOptional<'a> for ScrollDirection

unsafe fn from_value_optional(value: &Value) -> Option<Self>

Safety

impl Hash for ScrollDirection

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 ScrollDirection

fn cmp(&self, other: &ScrollDirection) -> 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 ScrollDirection

fn eq(&self, other: &ScrollDirection) -> 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 ScrollDirection

fn partial_cmp(&self, other: &ScrollDirection) -> 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 SetValue for ScrollDirection

unsafe fn set_value(value: &mut Value, this: &Self)

Safety

impl StaticType for ScrollDirection

fn static_type() -> Type

Returns the type identifier of Self.

impl Copy for ScrollDirection

impl Eq for ScrollDirection

impl StructuralPartialEq for ScrollDirection