import { MarkLine, MathsKit, MathsKitOptions } from '../mathsKit';
import { MathsKitManager } from '../manager';
import { Point2d } from '../utils/Point2d';
import Matrix2D from '../utils/matrix';
export type RulerElement = HTMLDivElement;
export declare class RulerTool extends MathsKit {
    protected markLines: MarkLine[];
    private deleteBtn;
    private rotateBtn;
    private angleInput;
    private lineLength;
    private stretchBtn;
    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;
    onStretchStart(): void;
    private thottled;
    onStretchDoing(): 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(): MarkLine[];
    private bindEvent;
    private unbindEvent;
    destroy(): void;
    private onDeleteBtnClickHandler;
    private onBtnMouseEnterHandler;
    private onBtnMouseLeaveHandler;
    createElement(): HTMLDivElement;
    createMark(element: RulerElement, position: 'top' | 'bottom'): void;
    setActive(isActive: boolean): void;
    render(): void;
    private renderMark;
    private renderMarkAtPosition;
    private createDeleteBtn;
    private createRotateBtn;
    private createStretchBtn;
    private createAngleInput;
    private onAngleInputFocusHandler;
    private onAngleInputBlurHandler;
    private onAngleInputKeyDownHandler;
    private updateAngleDisplay;
    private getCurrentAngle;
    private applyAngleFromInput;
    private showAngleInput;
    private hideAngleInput;
    showLineLength(number: number): void;
    hideLineLength(): void;
    private createLineLength;
}