Struct PngEncoderExtended

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pub struct PngEncoderExtended { /* private fields */ }

Expand description

PNG encoder with metadata support.

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impl PngEncoderExtended

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pub fn new(config: EncoderConfig) -> Self

Create a new extended PNG encoder.

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pub fn with_chromaticity(self, chroma: Chromaticity) -> Self

Set chromaticity coordinates.

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pub fn with_physical_dimensions(self, dims: PhysicalDimensions) -> Self

Set physical dimensions.

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pub fn with_dpi(self, dpi_x: f64, dpi_y: f64) -> Self

Set DPI (converts to physical dimensions in meters).

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pub fn with_text(self, keyword: String, text: String) -> Self

Add text metadata.

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pub const fn with_background_color(self, r: u16, g: u16, b: u16) -> Self

Set background color.

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pub fn encode_rgba( &self, width: u32, height: u32, data: &[u8], ) -> CodecResult<Vec<u8>>

Encode RGBA image with metadata.

§Errors

Returns error if encoding fails.

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impl Default for PngEncoderExtended

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fn default() -> Self

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

Auto Trait Implementations§

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impl UnwindSafe for PngEncoderExtended

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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> 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 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> 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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