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{"version":3,"file":"TextStyle.mjs","sources":["../src/TextStyle.ts"],"sourcesContent":["// disabling eslint for now, going to rewrite this in v5\n/* eslint-disable */\n\nimport { TEXT_GRADIENT } from './const';\nimport { Color } from '@pixi/core';\n\nexport type TextStyleAlign = 'left'|'center'|'right'|'justify';\nexport type TextStyleFill = string|string[]|number|number[]|CanvasGradient|CanvasPattern;\nexport type TextStyleFontStyle = 'normal'|'italic'|'oblique';\nexport type TextStyleFontVariant = 'normal'|'small-caps';\nexport type TextStyleFontWeight = 'normal'|'bold'|'bolder'|'lighter'|'100'|'200'|'300'|'400'|'500'|'600'|'700'|'800'|'900';\nexport type TextStyleLineJoin = 'miter'|'round'|'bevel';\nexport type TextStyleTextBaseline = 'alphabetic'|'top'|'hanging'|'middle'|'ideographic'|'bottom';\nexport type TextStyleWhiteSpace = 'normal'|'pre'|'pre-line';\n\n/**\n * Generic interface for TextStyle options.\n * @memberof PIXI\n */\nexport interface ITextStyle {\n /**\n * Alignment for multiline text, does not affect single line text\n * @type {'left'|'center'|'right'|'justify'}\n */\n align: TextStyleAlign;\n /** Indicates if lines can be wrapped within words, it needs wordWrap to be set to true */\n breakWords: boolean;\n /** Set a drop shadow for the text */\n dropShadow: boolean;\n /** Set alpha for the drop shadow */\n dropShadowAlpha: number;\n /** Set a angle of the drop shadow */\n dropShadowAngle: number;\n /** Set a shadow blur radius */\n dropShadowBlur: number;\n /** A fill style to be used on the dropshadow e.g., 'red', '#00FF00' */\n dropShadowColor: string|number;\n /** Set a distance of the drop shadow */\n dropShadowDistance: number;\n /**\n * A canvas fillstyle that will be used on the text e.g., 'red', '#00FF00'.\n * Can be an array to create a gradient, e.g., `['#000000','#FFFFFF']`\n * {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/fillStyle|MDN}\n * @type {string|string[]|number|number[]|CanvasGradient|CanvasPattern}\n */\n fill: TextStyleFill;\n /**\n * If fill is an array of colours to create a gradient, this can change the\n * type/direction of the gradient. See {@link PIXI.TEXT_GRADIENT}\n * @type {PIXI.TEXT_GRADIENT}\n */\n fillGradientType: TEXT_GRADIENT;\n /**\n * If fill is an array of colours to create a gradient, this array can set\n * the stop points (numbers between 0 and 1) for the color, overriding the\n * default behaviour of evenly spacing them.\n */\n fillGradientStops: number[];\n /**\n * The font family, can be a single font name, or a list of names where the first\n * is the preferred font.\n */\n fontFamily: string | string[];\n /**\n * The font size (as a number it converts to px, but as a string,\n * equivalents are '26px','20pt','160%' or '1.6em')\n */\n fontSize: number | string;\n /**\n * The font style.\n * @type {'normal'|'italic'|'oblique'}\n */\n fontStyle: TextStyleFontStyle;\n /**\n * The font variant.\n * @type {'normal'|'small-caps'}\n */\n fontVariant: TextStyleFontVariant;\n /**\n * The font weight.\n * @type {'normal'|'bold'|'bolder'|'lighter'|'100'|'200'|'300'|'400'|'500'|'600'|'700'|'800'|'900'}\n */\n fontWeight: TextStyleFontWeight;\n /** The height of the line, a number that represents the vertical space that a letter uses. */\n leading: number;\n /** The amount of spacing between letters, default is 0 */\n letterSpacing: number;\n /** The line height, a number that represents the vertical space that a letter uses */\n lineHeight: number;\n /**\n * The lineJoin property sets the type of corner created, it can resolve\n * spiked text issues. Possible values \"miter\" (creates a sharp corner),\n * \"round\" (creates a round corner) or \"bevel\" (creates a squared corner).\n * @type {'miter'|'round'|'bevel'}\n */\n lineJoin: TextStyleLineJoin;\n /**\n * The miter limit to use when using the 'miter' lineJoin mode. This can reduce\n * or increase the spikiness of rendered text.\n */\n miterLimit: number;\n /**\n * Occasionally some fonts are cropped. Adding some padding will prevent this from\n * happening by adding padding to all sides of the text.\n */\n padding: number;\n /** A canvas fillstyle that will be used on the text stroke, e.g., 'blue', '#FCFF00' */\n stroke: string|number;\n /** A number that represents the thickness of the stroke. A value of 0 will disable stroke. */\n strokeThickness: number;\n /**\n * The baseline of the text that is rendered.\n * @type {'alphabetic'|'top'|'hanging'|'middle'|'ideographic'|'bottom'}\n */\n textBaseline: TextStyleTextBaseline;\n /** Trim transparent borders */\n trim: boolean;\n /**\n * Determines whether newlines & spaces are collapsed or preserved \"normal\"\n * (collapse, collapse), \"pre\" (preserve, preserve) | \"pre-line\" (preserve,\n * collapse). It needs wordWrap to be set to true.\n * @type {'normal'|'pre'|'pre-line'}\n */\n whiteSpace: TextStyleWhiteSpace;\n /** Indicates if word wrap should be used */\n wordWrap: boolean;\n /** The width at which text will wrap, it needs wordWrap to be set to true */\n wordWrapWidth: number;\n}\n\nconst genericFontFamilies = [\n 'serif',\n 'sans-serif',\n 'monospace',\n 'cursive',\n 'fantasy',\n 'system-ui',\n];\n\n/**\n * A TextStyle Object contains information to decorate a Text objects.\n *\n * An instance can be shared between multiple Text objects; then changing the style will update all text objects using it.\n *\n * A tool can be used to generate a text style [here](https://pixijs.io/pixi-text-style).\n *\n * @memberof PIXI\n * @example\n * import { TextStyle } from 'pixi.js';\n * const style = new TextStyle({\n * fontFamily: ['Helvetica', 'Arial', 'sans-serif'],\n * fontSize: 36,\n * });\n */\nexport class TextStyle implements ITextStyle\n{\n /**\n * Default style options used for all TextStyle instances.\n * @type {PIXI.ITextStyle}\n */\n public static defaultStyle: ITextStyle = {\n /**\n * See {@link PIXI.TextStyle.align}\n * @type {'left'|'center'|'right'|'justify'}\n */\n align: 'left',\n /** See {@link PIXI.TextStyle.breakWords} */\n breakWords: false,\n /** See {@link PIXI.TextStyle.dropShadow} */\n dropShadow: false,\n /** See {@link PIXI.TextStyle.dropShadowAlpha} */\n dropShadowAlpha: 1,\n /**\n * See {@link PIXI.TextStyle.dropShadowAngle}\n * @type {number}\n * @default Math.PI / 6\n */\n dropShadowAngle: Math.PI / 6,\n /** See {@link PIXI.TextStyle.dropShadowBlur} */\n dropShadowBlur: 0,\n /**\n * See {@link PIXI.TextStyle.dropShadowColor}\n * @type {string|number}\n */\n dropShadowColor: 'black',\n /** See {@link PIXI.TextStyle.dropShadowDistance} */\n dropShadowDistance: 5,\n /**\n * See {@link PIXI.TextStyle.fill}\n * @type {string|string[]|number|number[]|CanvasGradient|CanvasPattern}\n */\n fill: 'black',\n /**\n * See {@link PIXI.TextStyle.fillGradientType}\n * @type {PIXI.TEXT_GRADIENT}\n * @default PIXI.TEXT_GRADIENT.LINEAR_VERTICAL\n */\n fillGradientType: TEXT_GRADIENT.LINEAR_VERTICAL,\n /**\n * See {@link PIXI.TextStyle.fillGradientStops}\n * @type {number[]}\n * @default []\n */\n fillGradientStops: [],\n /**\n * See {@link PIXI.TextStyle.fontFamily}\n * @type {string|string[]}\n */\n fontFamily: 'Arial',\n /**\n * See {@link PIXI.TextStyle.fontSize}\n * @type {number|string} \n */\n fontSize: 26,\n /**\n * See {@link PIXI.TextStyle.fontStyle}\n * @type {'normal'|'italic'|'oblique'}\n */\n fontStyle: 'normal',\n /**\n * See {@link PIXI.TextStyle.fontVariant}\n * @type {'normal'|'small-caps'}\n */\n fontVariant: 'normal',\n /**\n * See {@link PIXI.TextStyle.fontWeight}\n * @type {'normal'|'bold'|'bolder'|'lighter'|'100'|'200'|'300'|'400'|'500'|'600'|'700'|'800'|'900'}\n */\n fontWeight: 'normal',\n /** See {@link PIXI.TextStyle.leading} */\n leading: 0,\n /** See {@link PIXI.TextStyle.letterSpacing} */\n letterSpacing: 0,\n /** See {@link PIXI.TextStyle.lineHeight} */\n lineHeight: 0,\n /**\n * See {@link PIXI.TextStyle.lineJoin}\n * @type {'miter'|'round'|'bevel'}\n */\n lineJoin: 'miter',\n /** See {@link PIXI.TextStyle.miterLimit} */\n miterLimit: 10,\n /** See {@link PIXI.TextStyle.padding} */\n padding: 0,\n /**\n * See {@link PIXI.TextStyle.stroke}\n * @type {string|number}\n */\n stroke: 'black',\n /** See {@link PIXI.TextStyle.strokeThickness} */\n strokeThickness: 0,\n /**\n * See {@link PIXI.TextStyle.textBaseline} \n * @type {'alphabetic'|'top'|'hanging'|'middle'|'ideographic'|'bottom'}\n */\n textBaseline: 'alphabetic',\n /** See {@link PIXI.TextStyle.trim} */\n trim: false,\n /**\n * See {@link PIXI.TextStyle.whiteSpace}\n * @type {'normal'|'pre'|'pre-line'}\n */\n whiteSpace: 'pre',\n /** See {@link PIXI.TextStyle.wordWrap} */\n wordWrap: false,\n /** See {@link PIXI.TextStyle.wordWrapWidth} */\n wordWrapWidth: 100,\n };\n\n public styleID: number;\n\n protected _align: TextStyleAlign;\n protected _breakWords: boolean;\n protected _dropShadow: boolean;\n protected _dropShadowAlpha: number;\n protected _dropShadowAngle: number;\n protected _dropShadowBlur: number;\n protected _dropShadowColor: string|number;\n protected _dropShadowDistance: number;\n protected _fill: TextStyleFill;\n protected _fillGradientType: TEXT_GRADIENT;\n protected _fillGradientStops: number[];\n protected _fontFamily: string|string[];\n protected _fontSize: number|string;\n protected _fontStyle: TextStyleFontStyle;\n protected _fontVariant: TextStyleFontVariant;\n protected _fontWeight: TextStyleFontWeight;\n protected _letterSpacing: number;\n protected _lineHeight: number;\n protected _lineJoin: TextStyleLineJoin;\n protected _miterLimit: number;\n protected _padding: number;\n protected _stroke: string|number;\n protected _strokeThickness: number;\n protected _textBaseline: TextStyleTextBaseline;\n protected _trim: boolean;\n protected _whiteSpace: TextStyleWhiteSpace;\n protected _wordWrap: boolean;\n protected _wordWrapWidth: number;\n protected _leading: number;\n\n /**\n * @param style - TextStyle properties to be set on the text. See {@link PIXI.TextStyle.defaultStyle}\n * for the default values.\n */\n constructor(style?: Partial<ITextStyle>)\n {\n this.styleID = 0;\n\n this.reset();\n\n deepCopyProperties(this, style, style);\n }\n\n /**\n * Creates a new TextStyle object with the same values as this one.\n * Note that the only the properties of the object are cloned.\n *\n * @return New cloned TextStyle object\n */\n public clone(): TextStyle\n {\n const clonedProperties: Partial<ITextStyle> = {};\n\n deepCopyProperties(clonedProperties, this, TextStyle.defaultStyle);\n\n return new TextStyle(clonedProperties);\n }\n\n /** Resets all properties to the defaults specified in TextStyle.prototype._default */\n public reset(): void\n {\n deepCopyProperties(this, TextStyle.defaultStyle, TextStyle.defaultStyle);\n }\n\n /**\n * Alignment for multiline text, does not affect single line text.\n *\n * @member {'left'|'center'|'right'|'justify'}\n */\n get align(): TextStyleAlign\n {\n return this._align;\n }\n set align(align: TextStyleAlign)\n {\n if (this._align !== align)\n {\n this._align = align;\n this.styleID++;\n }\n }\n\n /** Indicates if lines can be wrapped within words, it needs wordWrap to be set to true. */\n get breakWords(): boolean\n {\n return this._breakWords;\n }\n set breakWords(breakWords: boolean)\n {\n if (this._breakWords !== breakWords)\n {\n this._breakWords = breakWords;\n this.styleID++;\n }\n }\n\n /** Set a drop shadow for the text. */\n get dropShadow(): boolean\n {\n return this._dropShadow;\n }\n set dropShadow(dropShadow: boolean)\n {\n if (this._dropShadow !== dropShadow)\n {\n this._dropShadow = dropShadow;\n this.styleID++;\n }\n }\n\n /** Set alpha for the drop shadow. */\n get dropShadowAlpha(): number\n {\n return this._dropShadowAlpha;\n }\n set dropShadowAlpha(dropShadowAlpha: number)\n {\n if (this._dropShadowAlpha !== dropShadowAlpha)\n {\n this._dropShadowAlpha = dropShadowAlpha;\n this.styleID++;\n }\n }\n\n /** Set a angle of the drop shadow. */\n get dropShadowAngle(): number\n {\n return this._dropShadowAngle;\n }\n set dropShadowAngle(dropShadowAngle: number)\n {\n if (this._dropShadowAngle !== dropShadowAngle)\n {\n this._dropShadowAngle = dropShadowAngle;\n this.styleID++;\n }\n }\n\n /** Set a shadow blur radius. */\n get dropShadowBlur(): number\n {\n return this._dropShadowBlur;\n }\n set dropShadowBlur(dropShadowBlur: number)\n {\n if (this._dropShadowBlur !== dropShadowBlur)\n {\n this._dropShadowBlur = dropShadowBlur;\n this.styleID++;\n }\n }\n\n /** A fill style to be used on the dropshadow e.g., 'red', '#00FF00'. */\n get dropShadowColor(): number | string\n {\n return this._dropShadowColor;\n }\n set dropShadowColor(dropShadowColor: number | string)\n {\n const outputColor = getColor(dropShadowColor);\n if (this._dropShadowColor !== outputColor)\n {\n this._dropShadowColor = outputColor;\n this.styleID++;\n }\n }\n\n /** Set a distance of the drop shadow. */\n get dropShadowDistance(): number\n {\n return this._dropShadowDistance;\n }\n set dropShadowDistance(dropShadowDistance: number)\n {\n if (this._dropShadowDistance !== dropShadowDistance)\n {\n this._dropShadowDistance = dropShadowDistance;\n this.styleID++;\n }\n }\n\n /**\n * A canvas fillstyle that will be used on the text e.g., 'red', '#00FF00'.\n *\n * Can be an array to create a gradient e.g., `['#000000','#FFFFFF']`\n * {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/fillStyle|MDN}\n *\n * @member {string|string[]|number|number[]|CanvasGradient|CanvasPattern}\n */\n get fill(): TextStyleFill\n {\n return this._fill;\n }\n set fill(fill: TextStyleFill)\n {\n // TODO: Can't have different types for getter and setter. The getter shouldn't have the number type as\n // the setter converts to string. See this thread for more details:\n // https://github.com/microsoft/TypeScript/issues/2521\n // TODO: Not sure if getColor works properly with CanvasGradient and/or CanvasPattern, can't pass in\n // without casting here.\n const outputColor = getColor(fill as any);\n if (this._fill !== outputColor)\n {\n this._fill = outputColor;\n this.styleID++;\n }\n }\n\n /**\n * If fill is an array of colours to create a gradient, this can change the type/direction of the gradient.\n *\n * @type {PIXI.TEXT_GRADIENT}\n */\n get fillGradientType(): TEXT_GRADIENT\n {\n return this._fillGradientType;\n }\n set fillGradientType(fillGradientType: TEXT_GRADIENT)\n {\n if (this._fillGradientType !== fillGradientType)\n {\n this._fillGradientType = fillGradientType;\n this.styleID++;\n }\n }\n\n /**\n * If fill is an array of colours to create a gradient, this array can set the stop points\n * (numbers between 0 and 1) for the color, overriding the default behaviour of evenly spacing them.\n */\n get fillGradientStops(): number[]\n {\n return this._fillGradientStops;\n }\n set fillGradientStops(fillGradientStops: number[])\n {\n if (!areArraysEqual(this._fillGradientStops,fillGradientStops))\n {\n this._fillGradientStops = fillGradientStops;\n this.styleID++;\n }\n }\n\n /**\n * The font family, can be a single font name, or a list of names where the first\n * is the preferred font.\n */\n get fontFamily(): string | string[]\n {\n return this._fontFamily;\n }\n set fontFamily(fontFamily: string | string[])\n {\n if (this.fontFamily !== fontFamily)\n {\n this._fontFamily = fontFamily;\n this.styleID++;\n }\n }\n\n /**\n * The font size\n * (as a number it converts to px, but as a string, equivalents are '26px','20pt','160%' or '1.6em')\n */\n get fontSize(): number | string\n {\n return this._fontSize;\n }\n set fontSize(fontSize: number | string)\n {\n if (this._fontSize !== fontSize)\n {\n this._fontSize = fontSize;\n this.styleID++;\n }\n }\n\n /**\n * The font style.\n *\n * @member {'normal'|'italic'|'oblique'}\n */\n get fontStyle(): TextStyleFontStyle\n {\n return this._fontStyle;\n }\n set fontStyle(fontStyle: TextStyleFontStyle)\n {\n if (this._fontStyle !== fontStyle)\n {\n this._fontStyle = fontStyle;\n this.styleID++;\n }\n }\n\n /**\n * The font variant.\n *\n * @member {'normal'|'small-caps'}\n */\n get fontVariant(): TextStyleFontVariant\n {\n return this._fontVariant;\n }\n set fontVariant(fontVariant: TextStyleFontVariant)\n {\n if (this._fontVariant !== fontVariant)\n {\n this._fontVariant = fontVariant;\n this.styleID++;\n }\n }\n\n /**\n * The font weight.\n *\n * @member {'normal'|'bold'|'bolder'|'lighter'|'100'|'200'|'300'|'400'|'500'|'600'|'700'|'800'|'900'}\n */\n get fontWeight(): TextStyleFontWeight\n {\n return this._fontWeight;\n }\n set fontWeight(fontWeight: TextStyleFontWeight)\n {\n if (this._fontWeight !== fontWeight)\n {\n this._fontWeight = fontWeight;\n this.styleID++;\n }\n }\n\n /** The amount of spacing between letters, default is 0. */\n get letterSpacing(): number\n {\n return this._letterSpacing;\n }\n set letterSpacing(letterSpacing: number)\n {\n if (this._letterSpacing !== letterSpacing)\n {\n this._letterSpacing = letterSpacing;\n this.styleID++;\n }\n }\n\n /** The line height, a number that represents the vertical space that a letter uses. */\n get lineHeight(): number\n {\n return this._lineHeight;\n }\n set lineHeight(lineHeight: number)\n {\n if (this._lineHeight !== lineHeight)\n {\n this._lineHeight = lineHeight;\n this.styleID++;\n }\n }\n\n /** The space between lines. */\n get leading(): number\n {\n return this._leading;\n }\n set leading(leading: number)\n {\n if (this._leading !== leading)\n {\n this._leading = leading;\n this.styleID++;\n }\n }\n\n /**\n * The lineJoin property sets the type of corner created, it can resolve spiked text issues.\n * Default is 'miter' (creates a sharp corner).\n *\n * @member {'miter'|'round'|'bevel'}\n */\n get lineJoin(): TextStyleLineJoin\n {\n return this._lineJoin;\n }\n set lineJoin(lineJoin: TextStyleLineJoin)\n {\n if (this._lineJoin !== lineJoin)\n {\n this._lineJoin = lineJoin;\n this.styleID++;\n }\n }\n\n /**\n * The miter limit to use when using the 'miter' lineJoin mode.\n *\n * This can reduce or increase the spikiness of rendered text.\n */\n get miterLimit(): number\n {\n return this._miterLimit;\n }\n set miterLimit(miterLimit: number)\n {\n if (this._miterLimit !== miterLimit)\n {\n this._miterLimit = miterLimit;\n this.styleID++;\n }\n }\n\n /**\n * Occasionally some fonts are cropped. Adding some padding will prevent this from happening\n * by adding padding to all sides of the text.\n */\n get padding(): number\n {\n return this._padding;\n }\n set padding(padding: number)\n {\n if (this._padding !== padding)\n {\n this._padding = padding;\n this.styleID++;\n }\n }\n\n /**\n * A canvas fillstyle that will be used on the text stroke, e.g., 'blue', '#FCFF00'\n */\n get stroke(): string | number\n {\n return this._stroke;\n }\n set stroke(stroke: string | number)\n {\n // TODO: Can't have different types for getter and setter. The getter shouldn't have the number type as\n // the setter converts to string. See this thread for more details:\n // https://github.com/microsoft/TypeScript/issues/2521\n const outputColor = getColor(stroke);\n if (this._stroke !== outputColor)\n {\n this._stroke = outputColor;\n this.styleID++;\n }\n }\n\n /**\n * A number that represents the thickness of the stroke.\n *\n * @default 0\n */\n get strokeThickness(): number\n {\n return this._strokeThickness;\n }\n set strokeThickness(strokeThickness: number)\n {\n if (this._strokeThickness !== strokeThickness)\n {\n this._strokeThickness = strokeThickness;\n this.styleID++;\n }\n }\n\n /**\n * The baseline of the text that is rendered.\n *\n * @member {'alphabetic'|'top'|'hanging'|'middle'|'ideographic'|'bottom'}\n */\n get textBaseline(): TextStyleTextBaseline\n {\n return this._textBaseline;\n }\n set textBaseline(textBaseline: TextStyleTextBaseline)\n {\n if (this._textBaseline !== textBaseline)\n {\n this._textBaseline = textBaseline;\n this.styleID++;\n }\n }\n\n /** Trim transparent borders. */\n get trim(): boolean\n {\n return this._trim;\n }\n set trim(trim: boolean)\n {\n if (this._trim !== trim)\n {\n this._trim = trim;\n this.styleID++;\n }\n }\n\n /**\n * How newlines and spaces should be handled.\n * Default is 'pre' (preserve, preserve).\n *\n * value | New lines | Spaces\n * --- | --- | ---\n * 'normal' | Collapse | Collapse\n * 'pre' | Preserve | Preserve\n * 'pre-line' | Preserve | Collapse\n *\n * @member {'normal'|'pre'|'pre-line'}\n */\n get whiteSpace(): TextStyleWhiteSpace\n {\n return this._whiteSpace;\n }\n set whiteSpace(whiteSpace: TextStyleWhiteSpace)\n {\n if (this._whiteSpace !== whiteSpace)\n {\n this._whiteSpace = whiteSpace;\n this.styleID++;\n }\n }\n\n /** Indicates if word wrap should be used. */\n get wordWrap(): boolean\n {\n return this._wordWrap;\n }\n set wordWrap(wordWrap: boolean)\n {\n if (this._wordWrap !== wordWrap)\n {\n this._wordWrap = wordWrap;\n this.styleID++;\n }\n }\n\n /** The width at which text will wrap, it needs wordWrap to be set to true. */\n get wordWrapWidth(): number\n {\n return this._wordWrapWidth;\n }\n set wordWrapWidth(wordWrapWidth: number)\n {\n if (this._wordWrapWidth !== wordWrapWidth)\n {\n this._wordWrapWidth = wordWrapWidth;\n this.styleID++;\n }\n }\n\n /**\n * Generates a font style string to use for `TextMetrics.measureFont()`.\n *\n * @return Font style string, for passing to `TextMetrics.measureFont()`\n */\n public toFontString(): string\n {\n // build canvas api font setting from individual components. Convert a numeric this.fontSize to px\n const fontSizeString = (typeof this.fontSize === 'number') ? `${this.fontSize}px` : this.fontSize;\n\n // Clean-up fontFamily property by quoting each font name\n // this will support font names with spaces\n let fontFamilies: string|string[] = this.fontFamily;\n\n if (!Array.isArray(this.fontFamily))\n {\n fontFamilies = this.fontFamily.split(',');\n }\n\n for (let i = fontFamilies.length - 1; i >= 0; i--)\n {\n // Trim any extra white-space\n let fontFamily = fontFamilies[i].trim();\n\n // Check if font already contains strings\n if (!(/([\\\"\\'])[^\\'\\\"]+\\1/).test(fontFamily) && !genericFontFamilies.includes(fontFamily))\n {\n fontFamily = `\"${fontFamily}\"`;\n }\n (fontFamilies as string[])[i] = fontFamily;\n }\n\n return `${this.fontStyle} ${this.fontVariant} ${this.fontWeight} ${fontSizeString} ${(fontFamilies as string[]).join(',')}`;\n }\n}\n\n/**\n * Utility function to convert hexadecimal colors to strings, and simply return the color if it's a string.\n * This version can also convert array of colors\n * @private\n * @param color\n * @return The color as a string.\n */\nfunction getColor(color: (string|number)[]): string[];\nfunction getColor(color: string|number): string;\nfunction getColor(color: string|number|(string|number)[]): string|string[]\n{\n const temp = Color.shared;\n\n const format = (color: string | number) => {\n const res = temp.setValue(color);\n return res.alpha === 1 ? res.toHex() : res.toRgbaString();\n }\n\n if (!Array.isArray(color))\n {\n return format(color);\n }\n else\n {\n return color.map(format);\n }\n}\n\n/**\n * Utility function to convert hexadecimal colors to strings, and simply return the color if it's a string.\n * This version can also convert array of colors\n * @private\n * @param array1 - First array to compare\n * @param array2 - Second array to compare\n * @return Do the arrays contain the same values in the same order\n */\nfunction areArraysEqual<T>(array1: T[], array2: T[]): boolean\n{\n if (!Array.isArray(array1) || !Array.isArray(array2))\n {\n return false;\n }\n\n if (array1.length !== array2.length)\n {\n return false;\n }\n\n for (let i = 0; i < array1.length; ++i)\n {\n if (array1[i] !== array2[i])\n {\n return false;\n }\n }\n\n return true;\n}\n\n/**\n * Utility function to ensure that object properties are copied by value, and not by reference\n * @private\n * @param target - Target object to copy properties into\n * @param source - Source object for the properties to copy\n * @param propertyObj - Object containing properties names we want to loop over\n */\nfunction deepCopyProperties(target: Record<string, any>, source: Record<string, any>, propertyObj: Record<string, any>): void {\n for (const prop in propertyObj) {\n if (Array.isArray(source[prop])) {\n target[prop] = source[prop].slice();\n } else {\n target[prop] = source[prop];\n }\n 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