Enum gdk::ScrollDirection

#[non_exhaustive]pub enum ScrollDirection {
    Up,
    Down,
    Left,
    Right,
    Smooth,
    // some variants omitted
}

Specifies the direction for EventScroll.

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

the window is scrolled up.

Down

the window is scrolled down.

Left

the window is scrolled to the left.

Right

the window is scrolled to the right.

Smooth

the scrolling is determined by the delta values in EventScroll. See gdk_event_get_scroll_deltas. Since: 3.4

Trait Implementations

impl Clone for ScrollDirection

fn clone(&self) -> ScrollDirection

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for ScrollDirection

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 Eq for ScrollDirection

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, 

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.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl PartialEq<ScrollDirection> for ScrollDirection

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

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

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

This method tests for !=.

impl PartialOrd<ScrollDirection> 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: &ScrollDirection) -> bool

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

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

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

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

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

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

This method 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 StructuralEq for ScrollDirection

impl StructuralPartialEq for ScrollDirection