import { type FC } from 'react';
/**
 * Tick-spacing preset. Maps to `minTickGap` so callers don't have to think in
 * pixels for the common case — explicit `minTickGap` still wins if passed.
 *
 *   - `'sparse'` → 64px gap (wide labels, long ranges)
 *   - `'normal'` → 32px gap (sane default for hourly / daily timeseries)
 *   - `'dense'`  → 16px gap (short labels, short ranges)
 */
export type LineChartXAxisDensity = 'sparse' | 'normal' | 'dense';
export interface LineChartXAxisProps {
    /** Format the rendered tick label. Receives the raw datum value at the tick. */
    tickFormatter?: (value: unknown, index: number) => string;
    /**
     * Curated tick-spacing preset (`'sparse' | 'normal' | 'dense'`). Sets
     * `minTickGap` to 64/32/16px respectively. Explicit `minTickGap` overrides
     * the preset — reach for that escape hatch when no preset fits.
     */
    density?: LineChartXAxisDensity;
    /** Recharts tick interval — `0` to render every tick, the literal strings to auto-pick. */
    interval?: number | 'preserveStart' | 'preserveEnd' | 'preserveStartEnd' | 'equidistantPreserveStart';
    /** Recharts target tick count. */
    tickCount?: number;
    /** Explicit tick values. Overrides recharts' generator. */
    ticks?: ReadonlyArray<number | string>;
    /** Minimum gap (in pixels) between rendered tick labels. Overrides `density`. */
    minTickGap?: number;
    /** Recharts domain override — `['auto', 'auto']` by default. */
    domain?: [
        number | string | 'auto' | 'dataMin' | 'dataMax',
        number | string | 'auto' | 'dataMin' | 'dataMax'
    ];
    /** Padding between the plot edge and the first/last tick. */
    padding?: {
        left?: number;
        right?: number;
    } | 'gap' | 'no-gap';
    /** Recharts axis scale type — `'category'` (default for line charts) or `'number'` for continuous X. */
    type?: 'category' | 'number';
    /** Render the axis area as a spacer (preserves layout, hides the labels). */
    hideTicks?: boolean;
    /**
     * Render the solid bottom axis line. Defaults to `true` — the line owns the
     * bottom rail of the plot (the `<LineChartGrid>` drops its bottom horizontal
     * grid line to avoid stacking on top of it). Pass `false` for sparkline-style
     * plots; in that case set `<LineChartGrid keepBottomLine />` if a bottom rail
     * is still wanted.
     */
    axisLine?: boolean;
}
export declare const LineChartXAxis: FC<LineChartXAxisProps>;