zhangyi
38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
import { PAPER_SIZE } from './constant';
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export function setCanvasSize(canvas: Canvas, paperSize: PaperSize) {
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const sizeObj = PAPER_SIZE[paperSize];
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// const { pixelRatio: dpr, windowWidth, windowHeight } = wx.getWindowInfo();
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// const printWidth = A4.width;
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// const printHeight = A4.height;
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// @ts-ignore
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// const originWidth = canvas._width || windowWidth;
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// // @ts-ignore
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// const originHeight = canvas._height || windowHeight;
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canvas.width = sizeObj.width;
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canvas.height = sizeObj.height;
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console.log('canvas----:', canvas);
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return canvas;
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}
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export async function getMiniCodeImagePath() {
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return getImagePath('/assets/imgs/mini-code.jpg');
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}
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export async function getImagePath(path: string) {
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return new Promise((resolve) => {
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// 如果是网络图片，需配置downloadFile域名
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wx.getImageInfo({
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src: path, // 本地图片路径
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success: (res) => {
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resolve(res.path);
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},
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fail: (err) => {
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console.error('图片加载失败:', err);
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resolve(''); // 可设置默认占位图
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},
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});
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});
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}
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