Enum image::codecs::png::CompressionType[−][src]

pub enum CompressionType {
    Default,
    Fast,
    Best,
    Huffman,
    Rle,
    // some variants omitted
}

Expand description

Compression level of a PNG encoder. The default setting is Fast.

Variants

Default

Default compression level

Fast

Fast, minimal compression

Best

High compression level

Huffman

Huffman coding compression

Rle

Run-length encoding compression

Trait Implementations

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impl Clone for CompressionType

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fn clone(&self) -> CompressionType

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 CompressionType

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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 CompressionType

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fn default() -> Self

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

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impl PartialEq<CompressionType> for CompressionType

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl StructuralPartialEq for CompressionType

Auto Trait Implementations

impl RefUnwindSafe for CompressionType

impl Send for CompressionType

impl Sync for CompressionType

impl Unpin for CompressionType

impl UnwindSafe for CompressionType

Blanket Implementations

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

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pub 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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pub 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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pub 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

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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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impl<T> Pointable for T

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pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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

Initializes a with the given initializer. Read more

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

Dereferences the given pointer. Read more

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

Mutably dereferences the given pointer. Read more

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pub unsafe fn drop(ptr: usize)

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

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

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

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

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum image::codecs::png::CompressionType[−][src]

Variants

Trait Implementations

impl Clone for CompressionType

fn clone(&self) -> CompressionType

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

impl Debug for CompressionType

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

impl Default for CompressionType

fn default() -> Self

impl PartialEq<CompressionType> for CompressionType

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

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

impl Copy for CompressionType

impl Eq for CompressionType

impl StructuralEq for CompressionType

impl StructuralPartialEq for CompressionType

Auto Trait Implementations

impl RefUnwindSafe for CompressionType

impl Send for CompressionType

impl Sync for CompressionType

impl Unpin for CompressionType

impl UnwindSafe for CompressionType

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

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

pub fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

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

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

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

pub unsafe fn drop(ptr: usize)

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

type Owned = T

pub fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

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

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

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

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

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

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

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