Enum components::ScrollSource

#[non_exhaustive]
pub enum ScrollSource {
    Unknown,
    Wheel,
    Finger,
    Continuous,
    // some variants omitted
}

The scroll source determines the source of the scroll event. Keep in mind that the source device InputDeviceType is not enough to infer the scroll source.

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.

Unknown

Source of scroll events is unknown.

Wheel

The scroll event is originated by a mouse wheel.

Finger

The scroll event is originated by one or more fingers on the device (eg. touchpads).

Continuous

The scroll event is originated by the motion of some device (eg. a scroll button is set).

Trait Implementations

impl Clone for ScrollSource

pub fn clone(&self) -> ScrollSource

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ScrollSource

impl Debug for ScrollSource

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

Formats the value using the given formatter.

impl Display for ScrollSource

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

Formats the value using the given formatter.

impl Eq for ScrollSource

impl<'a> FromValue<'a> for ScrollSource

pub unsafe fn from_value(value: &Value) -> ScrollSource

Safety

impl<'a> FromValueOptional<'a> for ScrollSource

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

Safety

impl Hash for ScrollSource

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

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for ScrollSource

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

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

Restrict a value to a certain interval.

impl PartialEq<ScrollSource> for ScrollSource

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<ScrollSource> for ScrollSource

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

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

#[must_use]

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

This method tests less than (for self and other) and is used by the < operator.

#[must_use]

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

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

#[must_use]

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

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]

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

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

impl SetValue for ScrollSource

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

Safety

impl StaticType for ScrollSource

pub fn static_type() -> Type

Returns the type identifier of Self.

impl StructuralEq for ScrollSource

impl StructuralPartialEq for ScrollSource