import { ColorChangeItem } from "../components/Canvas/types";
/**
 * This class is used to record the changes of pixels.
 * It will record the changes of pixels and record the changes in two arrays: rawChanges and effectiveChanges.
 *
 * `getRawChanges()`returns an array that recorded all the changes of pixels whether or not the pixel has been already changed.
 *
 * `getEffectiveChanges()` returns an array of changes that will later be applied to the canvas.
 */
export declare class PixelChangeRecords {
    private rawChanges;
    private effectiveChangesMap;
    constructor();
    record(pixel: ColorChangeItem): void;
    reset(): void;
    getIsChanged(): boolean;
    getRawChanges(): Array<ColorChangeItem>;
    getEffectiveChanges(): Array<ColorChangeItem>;
}