Struct Scale

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pub struct Scale {
    pub dpr: f32,
}
Expand description

Device pixel ratio (DPR) for logical ↔ physical conversion.

§Examples

use ailloli_ui_core::Scale;
assert_eq!(Scale::new(2.0).dpr, 2.0);

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§dpr: f32

Pixels per logical unit (e.g. 2.0 on a 2× display).

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impl Scale

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pub fn new(dpr: f32) -> Self

Creates a device-pixel ratio.

In optimized builds, zero and negative finite values clamp to 0.0001, NaN follows floating-point max semantics and also becomes 0.0001, while positive infinity remains infinite.

§Panics

Debug builds assert that dpr is finite and strictly positive.

§Examples
use ailloli_ui_core::Scale;
assert_eq!(Scale::new(1.5).dpr, 1.5);

Trait Implementations§

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impl Clone for Scale

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fn clone(&self) -> Scale

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 Scale

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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 for Scale

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

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

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 Scale

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impl StructuralPartialEq for Scale

Auto Trait Implementations§

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impl Freeze for Scale

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impl RefUnwindSafe for Scale

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impl Send for Scale

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impl Sync for Scale

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impl Unpin for Scale

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impl UnwindSafe for Scale

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> Same for T

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type Output = T

Should always be Self
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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.