/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
import { IInkStroke } from "./interfaces";
/**
 * Ink snapshot interface.
 */
export interface ISerializableInk {
    /**
     * Collection of ink strokes.
     */
    strokes: IInkStroke[];
    /**
     * Stores a mapping from the provided key to its index in strokes. Since
     * ISerializableInk is serialized we need to use an index.
     */
    strokeIndex: {
        [key: string]: number;
    };
}
/**
 * Maintains a live record of the data that can be used for snapshotting.
 */
export declare class InkData {
    /**
     * {@inheritDoc ISerializableInk.strokes}
     */
    private strokes;
    /**
     * {@inheritDoc ISerializableInk.strokeIndex}
     */
    private strokeIndex;
    /**
     * Construct a new InkData.
     * @param snapshot - Existing data to initialize with
     */
    constructor(snapshot?: ISerializableInk);
    /**
     * {@inheritDoc IInk.getStrokes}
     */
    getStrokes(): IInkStroke[];
    /**
     * {@inheritDoc IInk.getStroke}
     */
    getStroke(key: string): IInkStroke;
    /**
     * Clear all stored data.
     */
    clear(): void;
    /**
     * Add the given stroke to the stored data.
     * @param stroke - The stroke to add
     */
    addStroke(stroke: IInkStroke): void;
    /**
     * Get a JSON-compatible representation of the stored data.
     * @returns The JSON-compatible object
     */
    getSerializable(): ISerializableInk;
}
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