parent
032c32b337
commit
6c6f8c84aa
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@ -1,10 +1,11 @@
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import sheep from '@/sheep';
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import { formatImageUrlProtocol, getWxaQrcode } from './index';
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import { measureTextWidth } from '@/utils/textUtils'; // 引入新封装的方法
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const user = async (poster) => {
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const width = poster.width;
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const userInfo = sheep.$store('user').userInfo;
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const wxa_qrcode = await getWxaQrcode(poster.shareInfo.path, poster.shareInfo.query);
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const widthNickName = measureTextWidth(userInfo.nickname, 14); // 使用新方法
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return [
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{
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type: 'image',
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@ -28,7 +29,7 @@ const user = async (poster) => {
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fontFamily: 'sans-serif',
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position: 'fixed',
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top: width * 0.4,
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left: width / 2,
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left: (width-widthNickName) / 2,
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},
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},
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{
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@ -0,0 +1,34 @@
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// sheep/utils/textUtils.js
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export function measureTextWidth(text, fontSize = 14, fontFamily = 'sans-serif') {
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// 钉钉小程序没有 uni.createCanvasContext 方法
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if (typeof uni === 'undefined' || typeof uni.createCanvasContext !== 'function') {
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return estimateTextWidth(text, fontSize);
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}
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try {
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const ctx = uni.createCanvasContext('tempCanvasForText');
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ctx.setFontSize(fontSize);
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ctx.font = `${fontSize}px ${fontFamily}`;
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const metrics = ctx.measureText(text);
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return metrics.width;
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} catch (e) {
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// 某些平台可能不支持 measureText,降级使用估算
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return estimateTextWidth(text, fontSize);
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}
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}
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// 简单估算中文和英文字符宽度
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function estimateTextWidth(text, fontSize = 14) {
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let width = 0;
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for (let i = 0; i < text.length; i++) {
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const charCode = text.charCodeAt(i);
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if (charCode >= 0x4e00 && charCode <= 0x9fff) {
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// 中文字符
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width += fontSize;
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} else {
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// 英文字符
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width += fontSize * 0.5;
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}
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}
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return width;
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}
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