@poster-render/shared/types/canvas.d.ts

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import { CommonParams, DownloadImageOptions, DrawImageOptions, DrawLineOptions, DrawRectOptions, DrawTextOptions, PosterItemConfig, PreloadImageItem } from "./types";
/**
 * 绘制线
 * @param ctx
 * @param options
 */
export declare function drawLine(common: CommonParams, options: DrawLineOptions): Promise<void>;
/**
 * 绘制矩形
 * @param ctx
 * @param options
 */
export declare function drawRect(common: CommonParams, options: DrawRectOptions): Promise<void>;
/**
 * 下载图片
 * @param options
 */
export declare function downloadImage<R = any>(options: DownloadImageOptions): Promise<R | undefined>;
/**
 * 加载图片
 * @param options
 */
export declare function loadImage<R = any>(options: DownloadImageOptions): Promise<R | undefined>;
/**
 * 绘制图片
 */
export declare function drawImage(common: CommonParams, options: DrawImageOptions): Promise<void>;
export declare function drawText(common: CommonParams, options: DrawTextOptions): Promise<number>;
/**
 * 提前加载图片
 * @param urls
 */
export declare function preloadImage(ctx: CanvasRenderingContext2D, canvas: any, images: PreloadImageItem[]): Promise<boolean>;
/**
 * 清除画布
 * @param common
 */
export declare function clearCanvas(common: CommonParams): void;
/**
 *
 * @param common
 * @param config
 * @returns
 */
export declare function renderItem(common: CommonParams, config: PosterItemConfig): Promise<number | void>;
/**
 * 渲染一组数据
 * @param common
 * @param list
 * @returns
 */
export declare function render(common: CommonParams, list: PosterItemConfig[]): Promise<boolean>;