import { type ChartFillType, type IPatternOptionsObject } from "./types.js";
/**
 * SVG patterns used in series.color.pattern Highcharts config.
 *
 * The array index matches the color palette index.
 *
 * The name is used in visualisation property that maps selected pattern to a metric, i.e., changing it is
 * considered a breaking change.
 *
 * When a pattern "strokeWidth" is undefined, \{ "stroke": "none", "fill": currentColor \} is assumed.
 *
 * @internal
 */
export declare const PATTERN_FILLS: {
    name: string;
    pattern: IPatternOptionsObject;
}[];
/**
 * Chart fill config is used to customize the chart fill.
 *
 * @internal
 */
export interface IChartFillConfig {
    /**
     * Type of the chart fill.
     */
    type?: ChartFillType;
    /**
     * Custom mapping of selected pattern fill by measure.
     * The value is map of measure local identifiers per pattern name.
     * The property is used when type == "pattern".
     * When insight has a measure that is not mapped, the pattern will be assigned according to the
     * measure index, the same way as if no measure would be mapped.
     */
    measureToPatternName?: Record<string, PatternFillName>;
}
/**
 * @internal
 */
export type IPatternFill = (typeof PATTERN_FILLS)[number];
/**
 * @internal
 */
export type PatternFillName = (typeof PATTERN_FILLS)[number]["name"];
/**
 * Returns pattern fill by index.
 *
 * @param index - Index of pattern fill. When the index is a number, it returns a pattern matching
 *  the index number of the pattern array. When the index is out of bounds, the pattern fill is repeated.
 *  When the index is a pattern name, the matching pattern is returned. If the pattern is not found,
 *  the first pattern is returned.
 *
 * @internal
 */
export declare function getPatternFill(index: number | PatternFillName): IPatternOptionsObject;
/**
 * Returns pattern fill by index. When index is out of bounds, the pattern fill is repeated.
 * @param index - index of pattern fill
 *
 * @internal
 */
export declare function getPatternFillByIndex(index: number): IPatternOptionsObject;
/**
 * Returns pattern fill by key.
 * @param name - name of a pattern fill
 *
 * @internal
 */
export declare function getPatternFillByName(name: PatternFillName): IPatternOptionsObject | undefined;
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