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ScrollPhysics

Enum ScrollPhysics 

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pub enum ScrollPhysics {
    Momentum {
        friction: f32,
    },
    Clamped,
    Paged {
        page_size: f32,
    },
    Bounce {
        friction: f32,
        spring_stiffness: f32,
    },
}
Expand description

Physics model that governs how a [ScrollView] responds to input and decelerates.

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Momentum

Natural momentum with friction decay. friction in (0.0, 1.0) — 0.92 is a natural feel.

Fields

§friction: f32
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Clamped

Stops immediately on release.

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Paged

Snaps to page boundaries.

Fields

§page_size: f32
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Bounce

Momentum with rubber-band overscroll (D108/Phase 26 Step 2) — content can be dragged past its edge (resisted) and springs back once released, the iOS scroll feel. friction decays velocity same as ScrollPhysics::Momentum; spring_stiffness governs how quickly an out-of-bounds offset eases back to the nearest bound once velocity has settled (see ScrollController::settle_bounce) — an exponential ease, the same shape PaintCtx::animate_to already uses elsewhere in this codebase, not a full mass-spring simulation.

Fields

§friction: f32
§spring_stiffness: f32

Trait Implementations§

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impl Clone for ScrollPhysics

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fn clone(&self) -> ScrollPhysics

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for ScrollPhysics

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impl Debug for ScrollPhysics

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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 Default for ScrollPhysics

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

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

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> ToOwned for T
where 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 T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.