import { BaseRenderer } from './BaseRenderer.js';
import { Viewport } from '../viewport/Viewport.js';
import { Renderer, CanvasRenderOptions } from '../shared/types.js';
import { WarpedMap } from '../maps/WarpedMap.js';

/**
 * Class that renders WarpedMaps to a HTML Canvas element or OffscreenCanvas with the Canvas 2D API
 */
export declare class CanvasRenderer extends BaseRenderer<WarpedMap, ImageData> implements Renderer {
    #private;
    canvas: HTMLCanvasElement | OffscreenCanvas;
    context: CanvasRenderingContext2D;
    constructor(canvas: HTMLCanvasElement | OffscreenCanvas, options?: Partial<CanvasRenderOptions>);
    /**
     * Render the map for a given viewport.
     *
     * If no viewport is specified, a viewport is deduced based on the WarpedMapList and canvas width and hight.
     *
     * @param viewport - the viewport to render
     */
    render(viewport?: Viewport): Promise<void>;
}