import { type SharedValue } from "react-native-reanimated";
import type { ChartEngineLayout } from "../core/useLiveChartEngine";
import type { ChartPadding } from "../draw/line";
import type { ReferenceLine, ReferenceLineRenderProps } from "../types";
/** Whether a custom tag owns every state or only an off-axis tag. */
export type CustomReferenceLineMode = "always" | "off-axis";
/**
 * Which Form-A reference lines a custom renderer returns an element for. This
 * initial probe determines a line's static eligibility only; `"off-axis"` still
 * switches the built-in tag and the RN tag on the UI thread as the edge changes.
 * Index-aligned with `lines`.
 */
export declare function customReferenceLineFlags(lines: ReferenceLine[], render?: (ctx: ReferenceLineRenderProps) => React.ReactElement | null | undefined, mode?: CustomReferenceLineMode): boolean[];
/**
 * React Native overlay (NOT Skia) that floats `renderReferenceLine` elements over
 * the canvas, one per Form-A line the consumer customizes. Rendered as a sibling
 * of `<Canvas>` (like {@link CustomMarkerOverlay}) so the tags can be any RN view
 * and stay crisp at native resolution. Lines whose render returns an element hide
 * their built-in pill / label upstream (see {@link customReferenceLineFlags}); a
 * badged line's Skia connector remains, measured against the native tag's width.
 */
export declare function CustomReferenceLineOverlay({ lines, renderReferenceLine, custom, engine, padding, formatValue, dragValues, dragActive, tagWidths, offAxisOnly, }: {
    lines: ReferenceLine[];
    renderReferenceLine: (ctx: ReferenceLineRenderProps) => React.ReactElement | null | undefined;
    /**
     * Index-aligned flags (from {@link customReferenceLineFlags}) marking which
     * lines the render owns — only these get a floated view, matching the built-in
     * tags suppressed upstream. Avoids re-probing the render here.
     */
    custom: boolean[];
    engine: ChartEngineLayout;
    padding: ChartPadding;
    formatValue: (v: number) => string;
    /** Optional live overrides used by draggable single-series lines. */
    dragValues?: SharedValue<number[]>;
    /** Optional drag state used by draggable single-series lines. */
    dragActive?: SharedValue<boolean[]>;
    /** Measured custom-tag widths, index-aligned for the Skia connector. */
    tagWidths?: SharedValue<number[]>;
    /** Keep the built-in in-range tag and show this RN tag only off-axis. */
    offAxisOnly?: boolean;
}): import("react").JSX.Element | null;
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