Chunk

Struct Chunk 

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pub struct Chunk { /* private fields */ }
Expand description

Chunk meta-data. This doesn’t contain contents or children, but information needed to read the chunk from a file. You will still need a reader to read the contents though.

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impl Chunk

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pub fn read<R: Read + Seek>(reader: R) -> Result<Self, ReadError>

Reads the chunk header and returns the information needed to read its contents or children.

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pub fn content<R: Read + Seek>( &self, reader: R, ) -> Result<ContentReader<R>, ReadError>

Creates a reader for its contents.

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pub fn read_content_to_vec<R: Read + Seek>( &self, reader: R, ) -> Result<Vec<u8>, ReadError>

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pub fn children<R: Read + Seek>(&self, reader: R) -> ChildrenReader<R>

Creates an iterator over its children. The iterator yields Result<Chunk, _>, so you’ll need to handle the error first. Each child then is another Chunk struct that can be used to read contents or children.

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pub fn offset(&self) -> u32

Returns the offset at which the chunk starts. This is relative to the start of the reader. Note that for children chunks, this is relative to the start of the child data, since they basically use a ContentReader to read children chunks.

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pub fn id(&self) -> ChunkId

Returns the chunk IDs

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pub fn content_offset(&self) -> u32

Returns the offset to the content data. See Self::offset for further information.

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pub fn content_len(&self) -> u32

Returns the length of the content data.

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pub fn children_offset(&self) -> u32

Returns the offset to the children data. See Self::offset for further information.

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pub fn children_len(&self) -> u32

Returns the length of the children data.

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pub fn len(&self) -> u32

Returns the length of this chunk. That is the length of its contents, children and header.

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pub fn is_empty(&self) -> bool

Returns true if the chunks has neither content nor children, false otherwise.

Trait Implementations§

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impl Clone for Chunk

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fn clone(&self) -> Chunk

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 Chunk

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Chunk

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impl RefUnwindSafe for Chunk

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impl Send for Chunk

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impl Sync for Chunk

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impl Unpin for Chunk

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impl UnwindSafe for Chunk

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impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S
where T: FloatComponent, Swp: WhitePoint, Dwp: WhitePoint, D: AdaptFrom<S, Swp, Dwp, T>,

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fn adapt_into_using<M>(self, method: M) -> D
where M: TransformMatrix<Swp, Dwp, T>,

Convert the source color to the destination color using the specified method
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fn adapt_into(self) -> D

Convert the source color to the destination color using the bradford method by default
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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, U> IntoColor<U> for T
where U: FromColor<T>,

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fn into_color(self) -> U

Convert into T with values clamped to the color defined bounds Read more
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impl<T, U> IntoColorUnclamped<U> for T
where U: FromColorUnclamped<T>,

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fn into_color_unclamped(self) -> U

Convert into T. The resulting color might be invalid in its color space Read more
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impl<T> IntoEither for T

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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
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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
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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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<SS, SP> SupersetOf<SS> for SP
where SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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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, U> TryIntoColor<U> for T
where U: TryFromColor<T>,

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fn try_into_color(self) -> Result<U, OutOfBounds<U>>

Convert into T, returning ok if the color is inside of its defined range, otherwise an OutOfBounds error is returned which contains the unclamped color. Read more