import * as React from 'react';
import { IAccessibilityProps, IBasestate, IVerticalStackedBarChartProps, IVerticalStackedChartProps, IVSChartDataPoint } from '../../index';
export interface IVerticalStackedBarChartState extends IBasestate {
    selectedLegendTitle: string;
    dataPointCalloutProps?: IVSChartDataPoint;
    stackCalloutProps?: IVerticalStackedChartProps;
    activeXAxisDataPoint: number | string;
    callOutAccessibilityData?: IAccessibilityProps;
    calloutLegend: string;
}
export declare class VerticalStackedBarChartBase extends React.Component<IVerticalStackedBarChartProps, IVerticalStackedBarChartState> {
    private _points;
    private _dataset;
    private _xAxisLabels;
    private _bars;
    private _xAxisType;
    private _barWidth;
    private _additionalSpace;
    private _calloutId;
    private _colors;
    private margins;
    private _isRtl;
    private _createLegendsForLine;
    private _lineObject;
    private _tooltipId;
    private _yMax;
    private _calloutAnchorPoint;
    constructor(props: IVerticalStackedBarChartProps);
    componentDidUpdate(prevProps: IVerticalStackedBarChartProps): void;
    render(): React.ReactNode;
    /**
     * This function tells us what to focus either the whole stack as focusable item.
     * or each individual item in the stack as focusable item. basically it depends
     * on the prop `isCalloutForStack` if it's false user can focus each individual bar
     * within the bar if it's true then user can focus whole bar as item.
     * but if we have lines in the chart then we force the user to focus only the whole
     * bar, even if isCalloutForStack is false
     */
    private _toFocusWholeStack;
    private _getFormattedLineData;
    private _getLineLegends;
    private _createLines;
    private _getCircleVisibilityAndRadius;
    private _adjustProps;
    private _createDataSetLayer;
    private _getMargins;
    private _renderCallout;
    private _getCustomizedCallout;
    private _onLegendClick;
    private _onLegendHover;
    private _onLegendLeave;
    private _getLegendData;
    private _onRectHover;
    private _onRectFocusHover;
    private _lineHover;
    private _lineHoverOut;
    private _onStackHover;
    private _onStackHoverFocus;
    private _onRectFocus;
    private _onStackFocus;
    private _handleMouseOut;
    private _handleChartMouseLeave;
    private _onClick;
    private _getBarGapAndScale;
    private _createBar;
    private _getScales;
    private _createNumericBars;
    private _createStringBars;
    private _getGraphData;
    private _closeCallout;
    private _getAxisData;
    private _getAriaLabel;
}