pub struct ITXtChunk {
    pub keyword: String,
    pub compressed: bool,
    pub language_tag: String,
    pub translated_keyword: String,
    /* private fields */
}
Expand description

Struct encoding an iTXt chunk

Fields§

§keyword: String

The keyword field. This needs to be between 1-79 bytes when encoded as Latin-1.

§compressed: bool

Indicates whether the text will be (or was) compressed in the PNG.

§language_tag: String

A hyphen separated list of languages that the keyword is translated to. This is ASCII-7 encoded.

§translated_keyword: String

Translated keyword. This is UTF-8 encoded.

Implementations§

source§

impl ITXtChunk

source

pub fn new(keyword: impl Into<String>, text: impl Into<String>) -> Self

Constructs a new iTXt chunk. Leaves all but keyword and text to default values.

source

pub fn decompress_text(&mut self) -> Result<(), DecodingError>

Decompresses the inner text, mutating its own state. Can only handle decompressed text up to DECOMPRESSION_LIMIT bytes.

source

pub fn decompress_text_with_limit( &mut self, limit: usize ) -> Result<(), DecodingError>

Decompresses the inner text, mutating its own state. Can only handle decompressed text up to limit bytes.

source

pub fn get_text(&self) -> Result<String, DecodingError>

Decompresses the inner text, and returns it as a String. If decompression takes more than 2 MiB, try decompress_text_with_limit followed by this method.

source

pub fn compress_text(&mut self) -> Result<(), EncodingError>

Compresses the inner text, mutating its own state.

Trait Implementations§

source§

impl Clone for ITXtChunk

source§

fn clone(&self) -> ITXtChunk

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 ITXtChunk

source§

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

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

impl EncodableTextChunk for ITXtChunk

source§

fn encode<W: Write>(&self, w: &mut W) -> Result<(), EncodingError>

Encode text chunk as Vec to a Write
source§

impl PartialEq<ITXtChunk> for ITXtChunk

source§

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

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

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

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

impl Eq for ITXtChunk

source§

impl StructuralEq for ITXtChunk

source§

impl StructuralPartialEq for ITXtChunk

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere 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> ToOwned for Twhere T: Clone,

§

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 Twhere U: Into<T>,

§

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 Twhere U: TryFrom<T>,

§

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.