pub enum CompressionLevel {
None,
Fast,
Default,
Best,
}Expand description
PNG compression level
Variants§
None
No compression (fastest, largest files)
Fast
Fast compression (good balance)
Default
Default compression
Best
Best compression (slowest, smallest files)
Trait Implementations§
Source§impl Clone for CompressionLevel
impl Clone for CompressionLevel
Source§fn clone(&self) -> CompressionLevel
fn clone(&self) -> CompressionLevel
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for CompressionLevel
Source§impl Debug for CompressionLevel
impl Debug for CompressionLevel
Source§impl Default for CompressionLevel
impl Default for CompressionLevel
Source§fn default() -> CompressionLevel
fn default() -> CompressionLevel
Returns the “default value” for a type. Read more
Source§impl<'de> Deserialize<'de> for CompressionLevel
impl<'de> Deserialize<'de> for CompressionLevel
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
impl Eq for CompressionLevel
Source§impl PartialEq for CompressionLevel
impl PartialEq for CompressionLevel
Source§fn eq(&self, other: &CompressionLevel) -> bool
fn eq(&self, other: &CompressionLevel) -> bool
Tests for
self and other values to be equal, and is used by ==.Source§impl Serialize for CompressionLevel
impl Serialize for CompressionLevel
impl StructuralPartialEq for CompressionLevel
Auto Trait Implementations§
impl Freeze for CompressionLevel
impl RefUnwindSafe for CompressionLevel
impl Send for CompressionLevel
impl Sync for CompressionLevel
impl Unpin for CompressionLevel
impl UnsafeUnpin for CompressionLevel
impl UnwindSafe for CompressionLevel
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> DeserializeOwned for Twhere
T: for<'de> Deserialize<'de>,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key and return true if they are equal.Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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 moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<R, P> ReadPrimitive<R> for P
impl<R, P> ReadPrimitive<R> for P
Source§fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
fn read_from_little_endian(read: &mut R) -> Result<Self, Error>
Read this value from the supplied reader. Same as
ReadEndian::read_from_little_endian().