PdfColor class

An RGB color with components in 0..1, the renderer's common currency. Device color spaces convert into it; ICC-based spaces approximate for now.

Constructors

PdfColor(double red, double green, double blue)

const

PdfColor.cmyk(double cyan, double magenta, double yellow, double black)

DeviceCMYK → sRGB via the same SWOP-class polynomial pdf.js uses (DeviceCmykCS, a least-squares fit to a US Web Coated profile). Each output channel is a quadratic in (c, m, y, k); this matches pdf.js's rendering of process CMYK far more closely than a halftone or complement model - e.g. 0 0 0 0.89 k → RGB(69,71,77), not the halftone (28,28,28). Adopted so corpus/print colour matches the reference renderer across the board.

factory

PdfColor.gray(double level)

const

Properties

blue → double

final

green → double

final

hashCode → int

The hash code for this object.

no setter, override

red → double

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override

Constants

black → const PdfColor