import { MathsKitManager } from '../manager';
import { MarkCircle, MathsKit, MathsKitOptions } from '../mathsKit';
import { MathsKitElement, MathsKitType } from '../types';
import { Matrix2D, Point2d } from '../utils';
export type ProtractorElement = HTMLDivElement;
export declare const angle_radian = -1;
export declare class ProtractorTool extends MathsKit {
    showLineLength(_number: number): void;
    hideLineLength(): void;
    protected markLines: MarkCircle[];
    private deleteBtn;
    private rotateBtn;
    private angleBtnLeft;
    private angleBtnRight;
    private stretchBtn;
    private elementContent;
    private circleMark;
    private tragetAngleBtn?;
    private originZeroPoint?;
    private originalEventPoint?;
    private originAnglePoint?;
    bindElement(element: MathsKitElement, type: MathsKitType): void;
    private bindElementContent;
    constructor(options: MathsKitOptions, manager: MathsKitManager);
    init(): void;
    onDragStart(): void;
    onDragDoing(): void;
    onDragEnd(matrix: Matrix2D): void;
    onRotateStart(_originAngle: number): void;
    onRotateDoing(_angle: number): void;
    onRotateEnd(matrix: Matrix2D): void;
    getStretchDirection(): 'x' | 'y';
    onStretchStart(): void;
    private thottled;
    onStretchDoing: (_width: number) => void;
    onStretchEnd(width: number): void;
    /**
     * 获取旋转中心点, 坐标必须相对于容器左上角, 旋转中心点是左上角
     * @returns
     */
    getRotateCenterPoint: () => Point2d;
    getMarkLines(): MarkCircle[];
    private bindEvent;
    private unbindEvent;
    private computAngle;
    private onAngleBtnPointerMoveHandler;
    private stopAngleBtnPointerMoveHandler;
    private getCurrentAngle;
    private rotateAngleBtnHandle;
    destroy(): void;
    private onDeleteBtnClickHandler;
    private onBtnMouseEnterHandler;
    private onBtnMouseLeaveHandler;
    createElement(): HTMLDivElement;
    private createMark;
    private computeHeight;
    render(): void;
    private renderMark;
    private renderMarkAtPosition;
    setActive(isActive: boolean): void;
    private createAngleBtnLeft;
    private createAngleBtnRight;
    private createDeleteBtn;
    private createRotateBtn;
    private createStretchBtn;
}