import { VegaChart } from "./chart_base";
import { type VegaLiteSpec } from "./specs";
import type { ChartTheme } from "./theme";
import type { ScatterChartConfig, ScatterClickEvent } from "./types";
type ClickListener = (e: ScatterClickEvent) => void;
/**
 * Points scatter with an optional single-point highlight ring and an optional
 * colour channel (constant / per-point / numeric-with-scale). Colour scales
 * name the same schemes as the Python side (`viridis`, `RdBu`, …) so a
 * PCA/embedding plot keeps its colouring across web and paper renders.
 */
export declare class ScatterChart extends VegaChart {
    private config;
    private highlightIndex;
    private readonly clickListeners;
    constructor(container: HTMLElement, config: ScatterChartConfig);
    update(partial: Partial<ScatterChartConfig>): Promise<void>;
    setHighlight(index: number | null): Promise<void>;
    onPointClick(cb: ClickListener): () => void;
    private pointRows;
    private highlightRows;
    protected datasets(): Record<string, unknown[]>;
    protected buildSpec(theme: ChartTheme, sizeHint: {
        width: number;
        height: number;
    }): VegaLiteSpec;
    protected onDatum(datum: Record<string, unknown>): void;
}
export {};