import type { ResolvedAxisLabelConfig, ResolvedLineStyleConfig } from "../core/resolveConfig";
import type { ChartEngineExtrema, ChartEngineLayout } from "../core/useLiveChartEngine";
import type { ChartPadding } from "../draw/line";
/** Connector style + the label font size (to estimate where the label edge is). */
export interface ResolvedConnector {
    line: ResolvedLineStyleConfig;
    fontSize: number;
}
/**
 * The connector config for one axis-label side — non-null only when it's an
 * `"extrema-edge"` label with its connector enabled. The line `color` defaults
 * to the label color (then `defaultColor`), so the connector matches its readout.
 */
export declare function labelConnector(cfg: ResolvedAxisLabelConfig | null, defaultColor: string): ResolvedConnector | null;
/**
 * Skia connector lines for `"extrema-edge"` axis labels — a vertical line at the
 * extremum's x joining its edge value label to the marker dot on the data point.
 * Drawn in the canvas (so it dashes "like all lines"); the dot + label are RN
 * overlays positioned with the same projection, so the three pieces line up. The
 * line stops at the label edge, not the plot edge, so it never crosses the text.
 *
 * `top` / `bottom` are non-null only for a side in `"extrema-edge"` mode with its
 * connector enabled.
 */
export declare function ExtremaConnectorOverlay({ engine, padding, extremaTimeOffset, top, bottom, hideExtrema, suppressBottomWhenCoincident, }: {
    engine: ChartEngineLayout & Partial<ChartEngineExtrema>;
    padding: ChartPadding;
    extremaTimeOffset?: number;
    top: ResolvedConnector | null;
    bottom: ResolvedConnector | null;
    /** Hide extrema connectors while the chart is showing its loading shell. */
    hideExtrema?: boolean;
    /** Drop the lower connector when both configured labels share one point. */
    suppressBottomWhenCoincident?: boolean;
}): import("react").JSX.Element | null;
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