import { ImageEditor } from '../index';
export declare class FreehandDrawing {
    private parent;
    private lowerContext;
    private upperContext;
    private fhdObj;
    private isFreehandDrawing;
    private freehandDownPoint;
    private isFreehandPointMoved;
    private fhdHovIdx;
    private pointCounter;
    private selPointColl;
    private penStrokeWidth;
    private currFHDIdx;
    private selPoints;
    private dummyPoints;
    private fhdSelID;
    private tempFHDStyles;
    private fhdSelIdx;
    private straightenPoint;
    private prevStraightenObj;
    private straightenPointAngle;
    private isMasking;
    constructor(parent: ImageEditor);
    destroy(): void;
    private addEventListener;
    private removeEventListener;
    private draw;
    private updateFhdPvtVar;
    private reset;
    getModuleName(): string;
    private hoverFhd;
    private freehandDownHandler;
    private freehandUpHandler;
    private getHighestOrder;
    private freehandMoveHandler;
    private processPoint;
    private calcCurveCP;
    private point;
    private startDraw;
    private pointVelocity;
    private distanceTo;
    private drawCurve;
    private bezierLength;
    private bezierPoint;
    private drawArc;
    private freehandRedraw;
    private getSqPtFD;
    private applyPenDraw;
    private applyFhd;
    private cancelFhd;
    private selectFhd;
    private deleteFhd;
    private zoomX;
    private zoomY;
    private zoomFHDColl;
    private updateFHDCurPts;
    private rotateFhdColl;
    private flipFHDColl;
    private pointsHorizontalFlip;
    private pointsVerticalFlip;
    private updateFHDColl;
    private panFHDColl;
    private freeHandDraw;
    private isFHDIdx;
    private updateCropPtsForSel;
    private triggerShapeChanging;
    private setCenterSelPoints;
}