Struct LogicalSize

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pub struct LogicalSize {
    pub width: f64,
    pub height: f64,
}
Expand description

A size represented in logical pixels.

The size is stored as floats, so please be careful. Casting floats to integers truncates the fractional part, which can cause noticable issues. To help with that, an Into<(u32, u32)> implementation is provided which does the rounding for you.

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§width: f64§height: f64

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impl LogicalSize

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pub fn new(width: f64, height: f64) -> LogicalSize

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pub fn from_physical<T>(physical: T, dpi_factor: f64) -> LogicalSize
where T: Into<PhysicalSize>,

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pub fn to_physical(&self, dpi_factor: f64) -> PhysicalSize

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impl Clone for LogicalSize

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fn clone(&self) -> LogicalSize

Returns a duplicate 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 LogicalSize

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

Formats the value using the given formatter. Read more
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impl From<(f64, f64)> for LogicalSize

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fn from(_: (f64, f64)) -> LogicalSize

Converts to this type from the input type.
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impl From<(u32, u32)> for LogicalSize

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fn from(_: (u32, u32)) -> LogicalSize

Converts to this type from the input type.
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impl Into<(f64, f64)> for LogicalSize

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fn into(self) -> (f64, f64)

Converts this type into the (usually inferred) input type.
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impl Into<(u32, u32)> for LogicalSize

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fn into(self) -> (u32, u32)

Note that this rounds instead of truncating.

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impl PartialEq for LogicalSize

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fn eq(&self, other: &LogicalSize) -> 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 LogicalSize

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impl StructuralPartialEq for LogicalSize

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> Content for T
where T: Copy,

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type Owned = T

A type that holds a sized version of the content.
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fn read<F, E>(size: usize, f: F) -> Result<T, E>
where F: FnOnce(&mut T) -> Result<(), E>,

Prepares an output buffer, then turns this buffer into an Owned.
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fn get_elements_size() -> usize

Returns the size of each element.
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fn to_void_ptr(&self) -> *const ()

Produces a pointer to the data.
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fn ref_from_ptr<'a>(ptr: *mut (), size: usize) -> Option<*mut T>

Builds a pointer to this type from a raw pointer.
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fn is_size_suitable(size: usize) -> bool

Returns true if the size is suitable to store a type like this.
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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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.
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impl<T> Erased for T