import { ComponentConfigInterface } from '../../core/component/config';
import { ColorAccessor, NumericAccessor, StringAccessor } from '../../types/accessor';
import { FitMode, TrimMode } from '../../types/text';
import { TreemapDatum, TreemapNode, TreemapTileFunction } from './types';

export interface TreemapConfigInterface<Datum> extends ComponentConfigInterface {
    id?: ((d: Datum, i: number) => string | number);
    value?: NumericAccessor<Datum>;
    /** Array of accessor functions to defined the nested groups. Default: `[]` */
    layers: StringAccessor<Datum>[];
    /** @deprecated Define `tileLabel` instead.
     * A function that accepts a value number and returns a string. Default: `(value: number) => `${value}`` */
    numberFormat?: (value: number) => string;
    /**
     * Function to generate the label text for each tile. Receives the `TreemapNode` and returns a `string`.
     * Default: shows key and formatted value (e.g., "label: value").
     */
    tileLabel?: (node: TreemapNode<Datum>) => string;
    /** Color accessor function for tiles. Default: `undefined` */
    tileColor?: ColorAccessor<TreemapNode<Datum>>;
    /** D3 tile function (e.g. `treemapSquarify`, `treemapDice` from `d3-hierarchy`). Default: `undefined`. */
    tileFunction?: TreemapTileFunction<TreemapDatum<Datum>>;
    /** Comparator for sorting hierarchy nodes before layout. Receives two `HierarchyNode`s. Default: `undefined`. */
    tileSort?: ((a: TreemapNode<Datum>, b: TreemapNode<Datum>) => number) | null;
    /** Padding passed to D3 treemap layout. Default: `2` */
    tilePadding?: number;
    /**
     * Top padding passed to D3 treemap layout.
     * Useful to make room for internal node labels.
     * Default: `undefined`
     */
    tilePaddingTop?: number;
    /** Append SVG `<title>` element to tile rects. It will be shown when hovering over the tile. Default: `false` */
    tileShowHtmlTooltip?: boolean;
    /** Label internal nodes. Default: `false` */
    labelInternalNodes?: boolean;
    /** Label offset in the X direction. Default: `4` */
    labelOffsetX?: number;
    /** Label offset in the Y direction. Default: `4` */
    labelOffsetY?: number;
    /** How labels should fit within tiles: wrap or trim. Applicable only for leaf nodes. Default: `FitMode.Wrap` */
    labelFit?: FitMode;
    /** Label trimming mode. Default: `TrimMode.Middle` */
    labelTrimMode?: TrimMode;
    /** Border radius of the tiles in pixels. Default: `2` */
    tileBorderRadius?: number;
    /** Minimum fraction of width for border radius. Default: `1/8` */
    tileBorderRadiusFactor?: number;
    /** Enable lightness variance for sibling tiles. Default: `false` */
    enableLightnessVariance?: boolean;
    /** Enable font size variation for leaf node labels based on value. Default: `false` */
    enableTileLabelFontSizeVariation?: boolean;
    /** Small font size for leaf labels (used when `enableTileLabelFontSizeVariation` is `true`). Default: `8` */
    tileLabelSmallFontSize?: number;
    /** Medium font size for leaf labels (used when `enableTileLabelFontSizeVariation` is `true`). Default: `12` */
    tileLabelMediumFontSize?: number;
    /** Large font size for leaf labels (used when `enableTileLabelFontSizeVariation` is `true`). Default: `24` */
    tileLabelLargeFontSize?: number;
    /** Flag for showing cursor:pointer to indicate leaf tiles are clickable. Default: `undefined` */
    showTileClickAffordance?: boolean;
    /** Amount of lightness variation applied to sibling tiles when `enableLightnessVariance` is `true`. Default: `0.08` */
    lightnessVariationAmount?: number;
    /** Minimum size for labels in pixels. Default: `20` */
    minTileSizeForLabel?: number;
}
export declare const TreemapDefaultConfig: TreemapConfigInterface<unknown>;