import { type SharedValue } from "react-native-reanimated";
import type { ChartEngineLayout } from "../core/useLiveChartEngine";
import type { ResolvedSegment } from "../core/resolveSegment";
import type { ChartPadding } from "../draw/line";
/**
 * Derives the horizontal gradient applied to the line stroke for "scrub focus":
 * the line is a flat `baseColor` at rest, and while scrubbing (or when a segment
 * is `active`) the focused segment stays `baseColor` while the others are
 * de-emphasized with their `lineColor`/`lineColors`. `colors`/`positions` come
 * from the pure `segmentLineGradient`; `gradientEnd` spans the full canvas width
 * so stop fractions and the gradient vector share one coordinate space. Apply it
 * to the same `linePath` as the base line — one stroke, no seam, and the line
 * itself carries the opacity (not a layer painted on top).
 */
export declare function useSegmentLineGradient(engine: ChartEngineLayout, segments: ResolvedSegment[], padding: ChartPadding, baseColor: string, scrubX: SharedValue<number>, scrubActive: SharedValue<boolean>): {
    colors: import("react-native-reanimated").DerivedValue<string[]>;
    positions: import("react-native-reanimated").DerivedValue<number[]>;
    gradientEnd: import("react-native-reanimated").DerivedValue<import("@shopify/react-native-skia").SkPoint>;
};
//# sourceMappingURL=useSegmentLineGradient.d.ts.map