import { Point } from "../../../../Core/Point";
import { EDataLabelProviderType } from "../../../../types/DataLabelProviderType";
import type { SCRTDoubleVector, TSRTextBounds } from "../../../../types/TSciChart";
import type { WebGlRenderContext2D } from "../../../Drawing/WebGlRenderContext2D";
import type { RenderPassData } from "../../../Services/RenderPassData";
import { EColumnDataLabelPosition } from "./ColumnSeriesDataLabelProvider";
import type { IDataLabelProviderOptions } from "./DataLabelProvider";
import { DataLabelProvider } from "./DataLabelProvider";
import type { DataLabelState } from "./DataLabelState";
export interface IStackedColumnSeriesDataLabelProviderOptions extends IDataLabelProviderOptions {
    /**
     * Sets whether text should be positioned outside or inside the end of the column using {@link EColumnDataLabelPosition}.
     * Center positions the label in the middle of the stacked segment.
     * If Position then the {@link verticalTextPosition} property is used, or {@link horizontalTextPosition} if it is a vertical chart.
     * Default Outside
     */
    positionMode?: EColumnDataLabelPosition;
}
export declare class StackedColumnSeriesDataLabelProvider extends DataLabelProvider {
    readonly type: EDataLabelProviderType;
    private yAdj;
    private positionModeProperty;
    bottomVector: SCRTDoubleVector;
    topVector: SCRTDoubleVector;
    groupIndex: number;
    groupSize: number;
    columnWidth: number;
    spacing: number;
    isOneHundredPercent: boolean;
    showDataLabelsAsPercentages: boolean;
    constructor(options?: IStackedColumnSeriesDataLabelProviderOptions);
    /**
     * Sets whether text should be positioned outside or inside the end of the column using {@link EColumnDataLabelPosition}.
     * Center positions the label in the middle of the stacked segment.
     * If Position then the {@link verticalTextPosition} property is used, or {@link horizontalTextPosition} if it is a vertical chart.
     * Default Outside
     */
    get positionMode(): EColumnDataLabelPosition;
    /**
     * Sets whether text should be positioned outside or inside the end of the column using {@link EColumnDataLabelPosition}.
     * Center positions the label in the middle of the stacked segment.
     * If Position then the {@link verticalTextPosition} property is used, or {@link horizontalTextPosition} if it is a vertical chart.
     * Default Outside
     */
    set positionMode(value: EColumnDataLabelPosition);
    CalculateShift(initialVal: number): number;
    /**
     * This provider draws its window back-to-front unless the X axis is flipped, and indexes its
     * accumulation vectors ({@link topVector} / {@link bottomVector}) by that mirrored ordinal - so the
     * mapping from a drawn ordinal to a source row is this mirror-reversal, not the base class's
     * flip-then-map. Overridden so that a {@link DataLabelProvider.textColumn} resolves against the same
     * row this provider's own getPosition places the label on.
     * @remarks The point series' `indexes` map is deliberately not applied: the accumulation vectors
     * are indexed by drawn ordinal, and a stacked column series is not resampled, so the two coincide.
     */
    protected resolveSourceIndex(state: DataLabelState): number;
    getText(state: DataLabelState): string;
    generateDataLabels(renderContext: WebGlRenderContext2D, renderPassData: RenderPassData): void;
    getPosition(state: DataLabelState, textBounds: TSRTextBounds): {
        position: Point;
        rotationCenter: Point;
        rotationAngle: number;
    };
    toJSON(): {
        type: EDataLabelProviderType;
        options: {
            style: import("../../../..").TDataLabelStyle;
            color: string;
        };
    };
}