colors

nimony/lib/std/colors.nim

This module implements color handling for Nimony, namely color mixing and parsing the CSS color names.

type Color = distinct int64
A color stored as RGB, e.g. 0xff00cc.
proc ==(a: Color; b: Color): bool
Compares two colors.
proc +(a: Color; b: Color): Color
Adds two colors.
This uses saturated arithmetic, so that each color component cannot overflow (255 is used as a maximum).
proc -(a: Color; b: Color): Color
Subtracts two colors.
This uses saturated arithmetic, so that each color component cannot underflow (0 is used as a minimum).
proc extractRGB(a: Color): tuple[r: 0..255, g: 0..255, b: 0..255]
Extracts the red/green/blue components of the color a.
proc intensity(a: Color; f: float64): Color
Returns a with intensity f. f should be a float from 0.0 (completely dark) to 1.0 (full color intensity).
template mix(a: Color; b: Color; fn: untyped): Color
Uses fn to mix the colors a and b.
fn is invoked for each component R, G, and B. If fn's result is not in the range[0..255], it will be saturated to be so.
const colAliceBlue: Color
const colAntiqueWhite: Color
const colAqua: Color
const colAquamarine: Color
const colAzure: Color
const colBeige: Color
const colBisque: Color
const colBlack: Color
const colBlanchedAlmond: Color
const colBlue: Color
const colBlueViolet: Color
const colBrown: Color
const colBurlyWood: Color
const colCadetBlue: Color
const colChartreuse: Color
const colChocolate: Color
const colCoral: Color
const colCornflowerBlue: Color
const colCornsilk: Color
const colCrimson: Color
const colCyan: Color
const colDarkBlue: Color
const colDarkCyan: Color
const colDarkGoldenRod: Color
const colDarkGray: Color
const colDarkGreen: Color
const colDarkGrey: Color
const colDarkKhaki: Color
const colDarkMagenta: Color
const colDarkOliveGreen: Color
const colDarkorange: Color
const colDarkOrchid: Color
const colDarkRed: Color
const colDarkSalmon: Color
const colDarkSeaGreen: Color
const colDarkSlateBlue: Color
const colDarkSlateGray: Color
const colDarkSlateGrey: Color
const colDarkTurquoise: Color
const colDarkViolet: Color
const colDeepPink: Color
const colDeepSkyBlue: Color
const colDimGray: Color
const colDimGrey: Color
const colDodgerBlue: Color
const colFireBrick: Color
const colFloralWhite: Color
const colForestGreen: Color
const colFuchsia: Color
const colGainsboro: Color
const colGhostWhite: Color
const colGold: Color
const colGoldenRod: Color
const colGray: Color
const colGreen: Color
const colGreenYellow: Color
const colGrey: Color
const colHoneyDew: Color
const colHotPink: Color
const colIndianRed: Color
const colIndigo: Color
const colIvory: Color
const colKhaki: Color
const colLavender: Color
const colLavenderBlush: Color
const colLawnGreen: Color
const colLemonChiffon: Color
const colLightBlue: Color
const colLightCoral: Color
const colLightCyan: Color
const colLightGoldenRodYellow: Color
const colLightGray: Color
const colLightGreen: Color
const colLightGrey: Color
const colLightPink: Color
const colLightSalmon: Color
const colLightSeaGreen: Color
const colLightSkyBlue: Color
const colLightSlateGray: Color
const colLightSlateGrey: Color
const colLightSteelBlue: Color
const colLightYellow: Color
const colLime: Color
const colLimeGreen: Color
const colLinen: Color
const colMagenta: Color
const colMaroon: Color
const colMediumAquaMarine: Color
const colMediumBlue: Color
const colMediumOrchid: Color
const colMediumPurple: Color
const colMediumSeaGreen: Color
const colMediumSlateBlue: Color
const colMediumSpringGreen: Color
const colMediumTurquoise: Color
const colMediumVioletRed: Color
const colMidnightBlue: Color
const colMintCream: Color
const colMistyRose: Color
const colMoccasin: Color
const colNavajoWhite: Color
const colNavy: Color
const colOldLace: Color
const colOlive: Color
const colOliveDrab: Color
const colOrange: Color
const colOrangeRed: Color
const colOrchid: Color
const colPaleGoldenRod: Color
const colPaleGreen: Color
const colPaleTurquoise: Color
const colPaleVioletRed: Color
const colPapayaWhip: Color
const colPeachPuff: Color
const colPeru: Color
const colPink: Color
const colPlum: Color
const colPowderBlue: Color
const colPurple: Color
const colRebeccaPurple: Color
const colRed: Color
const colRosyBrown: Color
const colRoyalBlue: Color
const colSaddleBrown: Color
const colSalmon: Color
const colSandyBrown: Color
const colSeaGreen: Color
const colSeaShell: Color
const colSienna: Color
const colSilver: Color
const colSkyBlue: Color
const colSlateBlue: Color
const colSlateGray: Color
const colSlateGrey: Color
const colSnow: Color
const colSpringGreen: Color
const colSteelBlue: Color
const colTan: Color
const colTeal: Color
const colThistle: Color
const colTomato: Color
const colTurquoise: Color
const colViolet: Color
const colWheat: Color
const colWhite: Color
const colWhiteSmoke: Color
const colYellow: Color
const colYellowGreen: Color
proc $(c: Color): string
Converts a color into its textual representation.
proc parseColor(name: string): Color
Parses name to a color value.
If no valid color could be parsed ValueError is raised. Case insensitive.
proc isColor(name: string): bool
Returns true if name is a known color name or a hexadecimal color prefixed with #. Case insensitive.
proc rgb(r: 0..255; g: 0..255; b: 0..255): Color
Constructs a color from RGB values.