import { CanvasRenderer } from './CanvasRenderer';
import { Component } from './component/Component';
export declare class CanvasHelper {
    isPointInPath(area: Path2D | string, x: number, d: number): any;
    renderer: CanvasRenderer;
    constructor();
    measure<T extends Component>(c: T): {
        width: number;
    };
    private measureText;
    getPattern(img: CanvasImageSource): CanvasPattern;
}
export declare const canvasHelper: CanvasHelper;