pub enum MouseScrollDistance {
    Lines {
        x: f64,
        y: f64,
        z: f64,
    },
    Pixels {
        x: f64,
        y: f64,
        z: f64,
    },
    Pages {
        x: f64,
        y: f64,
        z: f64,
    },
}
Expand description

Describes a difference in the mouse scroll wheel position.

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Lines

Fields

§x: f64

The horizontal scroll distance. Negative values indicate scrolling left, and positive values indicate scrolling right.

§y: f64

The vertical scroll distance. Negative values indicate scrolling down, and positive values indicate scrolling up.

§z: f64

The forward/backward scroll distance, supported on some 3D mice.

Number of lines or rows to scroll in each direction. The y field represents the vertical scroll direction on a typical mouse wheel.

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Pixels

Fields

§x: f64

The horizontal scroll distance. Negative values indicate scrolling left, and positive values indicate scrolling right.

§y: f64

The vertical scroll distance. Negative values indicate scrolling down, and positive values indicate scrolling up.

§z: f64

The forward/backward scroll distance, supported on some 3D mice.

Number of pixels to scroll in each direction. Scroll events are expressed in pixels if supported by the device (eg. a touchpad) and platform. The y field represents the vertical scroll direction on a typical mouse wheel.

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Pages

Fields

§x: f64

The horizontal scroll distance. Negative values indicate scrolling left, and positive values indicate scrolling right.

§y: f64

The vertical scroll distance. Negative values indicate scrolling down, and positive values indicate scrolling up.

§z: f64

The forward/backward scroll distance, supported on some 3D mice.

Number of pages to scroll in each direction (only supported for WebCanvas). The y field represents the vertical scroll direction on a typical mouse wheel.

Trait Implementations§

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impl Clone for MouseScrollDistance

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fn clone(&self) -> MouseScrollDistance

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for MouseScrollDistance

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

Formats the value using the given formatter. Read more
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impl PartialEq<MouseScrollDistance> for MouseScrollDistance

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for MouseScrollDistance

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impl StructuralPartialEq for MouseScrollDistance

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere
    T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere
    T: ?Sized,

const: unstable · source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere
    U: From<T>,

const: unstable · source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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const ALIGN: usize = mem::align_of::<T>()

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for Twhere
    T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere
    U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere
    U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.