Color

Enum Color 

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pub enum Color {
    Rgb(f64, f64, f64),
    Gray(f64),
    Cmyk(f64, f64, f64, f64),
}
Expand description

Represents a color in PDF documents.

Supports RGB, Grayscale, and CMYK color spaces.

Variants§

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Rgb(f64, f64, f64)

RGB color (red, green, blue) with values from 0.0 to 1.0

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Gray(f64)

Grayscale color with value from 0.0 (black) to 1.0 (white)

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Cmyk(f64, f64, f64, f64)

CMYK color (cyan, magenta, yellow, key/black) with values from 0.0 to 1.0

Implementations§

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impl Color

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pub fn lighten(&self, amount: f64) -> Color

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pub fn darken(&self, amount: f64) -> Color

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pub fn to_array(&self) -> Object

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impl Color

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pub fn rgb(r: f64, g: f64, b: f64) -> Self

Creates an RGB color with values clamped to 0.0-1.0.

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pub fn hex(hex_str: &str) -> Self

Create a color from a hex string like “#RRGGBB”

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pub fn gray(value: f64) -> Self

Creates a grayscale color with value clamped to 0.0-1.0.

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pub fn cmyk(c: f64, m: f64, y: f64, k: f64) -> Self

Creates a CMYK color with values clamped to 0.0-1.0.

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pub fn black() -> Self

Black color (gray 0.0).

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pub fn white() -> Self

White color (gray 1.0).

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pub fn red() -> Self

Red color (RGB 1,0,0).

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pub fn green() -> Self

Green color (RGB 0,1,0).

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pub fn blue() -> Self

Blue color (RGB 0,0,1).

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pub fn yellow() -> Self

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pub fn cyan() -> Self

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pub fn magenta() -> Self

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pub fn cmyk_cyan() -> Self

Pure cyan color in CMYK space (100% cyan, 0% magenta, 0% yellow, 0% black)

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pub fn cmyk_magenta() -> Self

Pure magenta color in CMYK space (0% cyan, 100% magenta, 0% yellow, 0% black)

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pub fn cmyk_yellow() -> Self

Pure yellow color in CMYK space (0% cyan, 0% magenta, 100% yellow, 0% black)

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pub fn cmyk_black() -> Self

Pure black color in CMYK space (0% cyan, 0% magenta, 0% yellow, 100% black)

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pub fn r(&self) -> f64

Get red component (converts other color spaces to RGB approximation)

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pub fn g(&self) -> f64

Get green component (converts other color spaces to RGB approximation)

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pub fn b(&self) -> f64

Get blue component (converts other color spaces to RGB approximation)

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pub fn cmyk_components(&self) -> (f64, f64, f64, f64)

Get CMYK components (for CMYK colors, or conversion for others)

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pub fn to_rgb(&self) -> Color

Convert to RGB color space

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pub fn to_cmyk(&self) -> Color

Convert to CMYK color space

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pub fn color_space_name(&self) -> &'static str

Get the color space name for PDF

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pub fn is_cmyk(&self) -> bool

Check if this color is in CMYK color space

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pub fn is_rgb(&self) -> bool

Check if this color is in RGB color space

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pub fn is_gray(&self) -> bool

Check if this color is in grayscale color space

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pub fn to_pdf_array(&self) -> Object

Convert to PDF array representation

Trait Implementations§

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impl Clone for Color

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fn clone(&self) -> Color

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 Color

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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 PartialEq for Color

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for Color

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impl StructuralPartialEq for Color

Auto Trait Implementations§

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impl Freeze for Color

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impl RefUnwindSafe for Color

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impl Send for Color

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impl Sync for Color

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impl Unpin for Color

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impl UnwindSafe for Color

Blanket Implementations§

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> 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<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> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more