import { Emitter } from '@mantou/gem/lib/decorators';
import { DuoyunChartBaseElement } from './base/chart';
import './chart-zoom';
export interface Sequence {
    label: string;
    value?: string;
    values: (number | null)[][];
}
export interface SymbolRenderOption {
    point: number[];
    color: string;
    isHover: boolean;
    chart: DuoyunAreaChartElement;
}
export declare function defaultSymbolRender({ point, color, isHover, chart }: SymbolRenderOption): import("lit-html/lib/template-result").SVGTemplateResult;
/**
 * @customElement dy-area-chart
 */
export declare class DuoyunAreaChartElement extends DuoyunChartBaseElement {
    #private;
    fill: boolean;
    stroke: boolean;
    stack: boolean;
    symbol: boolean;
    symbolRender: typeof defaultSymbolRender;
    chartzoom: boolean;
    range: number[];
    smooth: boolean;
    gradient: boolean;
    sequences?: Sequence[];
    zoom: Emitter<number[]>;
    constructor();
    state: {
        hoverIndex: number;
        hoverLine: string;
        hoverSequence: string;
    };
    willMount: () => void;
    mounted: () => () => void;
    render: () => import("lit-html/lib/template-result").TemplateResult;
}
//# sourceMappingURL=area-chart.d.ts.map