zng_view_api::image

Enum ImageDownscale

source
pub enum ImageDownscale {
    Fit(PxSize),
    Fill(PxSize),
}
Expand description

Defines how an image is downscaled after decoding.

The image aspect ratio is preserved in both modes, the image is not upscaled, if it already fits the size constraints if will not be resized.

Variants§

§

Fit(PxSize)

Image is downscaled so that both dimensions fit inside the size.

§

Fill(PxSize)

Image is downscaled so that at least one dimension fits inside the size.

Implementations§

source§

impl ImageDownscale

source

pub fn resize_dimensions(self, source_size: PxSize) -> PxSize

Compute the expected final size if the downscale is applied on an image of source_size.

Trait Implementations§

source§

impl Clone for ImageDownscale

source§

fn clone(&self) -> ImageDownscale

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for ImageDownscale

source§

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

Formats the value using the given formatter. Read more
source§

impl<'de> Deserialize<'de> for ImageDownscale

source§

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
source§

impl From<Px> for ImageDownscale

source§

fn from(fit: Px) -> Self

Fit splat

source§

impl From<Size2D<Px, Px>> for ImageDownscale

source§

fn from(fit: PxSize) -> Self

Fit

source§

impl Hash for ImageDownscale

source§

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
1.3.0 · source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
source§

impl IntoVar<ImageDownscale> for Px

source§

type Var = LocalVar<ImageDownscale>

Variable type that will wrap the T value. Read more
source§

fn into_var(self) -> Self::Var

Converts the source value into a var.
source§

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
source§

impl IntoVar<ImageDownscale> for PxSize

source§

type Var = LocalVar<ImageDownscale>

Variable type that will wrap the T value. Read more
source§

fn into_var(self) -> Self::Var

Converts the source value into a var.
source§

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
source§

impl IntoVar<Option<ImageDownscale>> for ImageDownscale

source§

type Var = LocalVar<Option<ImageDownscale>>

Variable type that will wrap the T value. Read more
source§

fn into_var(self) -> Self::Var

Converts the source value into a var.
source§

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
source§

impl PartialEq for ImageDownscale

source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl Serialize for ImageDownscale

source§

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
source§

impl Copy for ImageDownscale

source§

impl Eq for ImageDownscale

source§

impl IntoValue<ImageDownscale> for Px

source§

impl IntoValue<ImageDownscale> for PxSize

source§

impl IntoValue<Option<ImageDownscale>> for ImageDownscale

source§

impl StructuralPartialEq for ImageDownscale

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> AnyVarValue for T
where T: VarValue,

source§

fn as_any(&self) -> &(dyn Any + 'static)

Access to dyn Any methods.
source§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Access to mut dyn Any methods.
source§

fn clone_boxed(&self) -> Box<dyn AnyVarValue>

Clone the value.
source§

fn clone_boxed_var(&self) -> Box<dyn AnyVar>

Clone the value into a new boxed LocalVar<Self>.
source§

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

Access to Box<dyn Any> methods.
source§

fn eq_any(&self, other: &(dyn AnyVarValue + 'static)) -> bool

Gets if self equals other.
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

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

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.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

impl<T> IntoVar<T> for T
where T: VarValue,

source§

type Var = LocalVar<T>

Variable type that will wrap the T value. Read more
source§

fn into_var(self) -> <T as IntoVar<T>>::Var

Converts the source value into a var.
source§

fn into_boxed_var(self) -> Box<dyn VarBoxed<T>>
where Self: Sized,

Converts into BoxedVar<T>. Read more
§

impl<T> Pointable for T

§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> ToOwned for T
where T: Clone,

source§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

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

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
§

impl<T> WithSubscriber for T

§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
source§

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

source§

impl<T> IntoValue<T> for T
where T: VarValue,

source§

impl<T> VarValue for T
where T: Debug + Clone + PartialEq + Any + Send + Sync,