import type { SkFont } from "@shopify/react-native-skia";
import type { ChartEngineLayout } from "../core/useLiveChartEngine";
import type { ChartPadding } from "../draw/line";
export interface XAxisEntry {
    x: number;
    label: string;
    alpha: number;
}
/**
 * Build a fresh label cache that re-formats every tick's `text` with
 * `formatTime`, preserving each entry's `alpha`. The cache (see {@link useXAxis})
 * formats each tick once for allocation reasons; this refreshes it when the
 * `formatTime` prop changes. Returns a NEW object (and new entry objects) rather
 * than mutating `cache` in place — the cache is also read inside the derived
 * value worklet, and mutating an already-serialized object from the JS thread
 * is unsafe under Reanimated's worklet model. Replacing the SharedValue with a
 * fresh object propagates cleanly to the UI thread.
 */
export declare function reformatXAxisLabels(cache: Record<number, {
    alpha: number;
    text: string;
}>, formatTime: (t: number) => string): Record<number, {
    alpha: number;
    text: string;
}>;
/** Insertion sort — worklet-safe, no callback functions. */
export declare function insertionSortByX(arr: XAxisEntry[]): void;
export declare function useXAxis(engine: ChartEngineLayout, padding: ChartPadding, formatTime: (t: number) => string, font: SkFont): {
    xAxisEntries: import("react-native-reanimated").DerivedValue<XAxisEntry[]>;
    font: SkFont;
};
//# sourceMappingURL=useXAxis.d.ts.map