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fix: 去除失效代码

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刘杰
2025-10-13 10:16:53 +08:00
parent 2eced48791
commit 97deeba4cb
2 changed files with 0 additions and 357 deletions
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355
src/components/Poster/index.tsx
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@@ -1,355 +0,0 @@
import { useEffect, useImperativeHandle, forwardRef } from "react";
import { Canvas } from "@tarojs/components";
import Taro from "@tarojs/taro";
function getImageWh(src): Promise<{ width: number; height: number }> {
return new Promise((resolve) => {
Taro.getImageInfo({
src,
success: ({ width, height }) => resolve({ width, height }),
});
});
}
const qrCodeUrl =
"https://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/5e013195-fc79-4082-bf06-9aa79aea65ae.png";
const ringUrl =
"https://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/b635164f-ecec-434a-a00b-69614a918f2f.png";
const dateIcon =
"https://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/1b49476e-0eda-42ff-b08c-002ce510df82.jpg";
const mapIcon =
"https://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/06b994fa-9227-4708-8555-8a07af8d0c3b.jpg";
// const logo = "http://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/fb732da6-11b9-4022-a524-a377b17635eb.jpg"
const logoText =
"https://bimwe.oss-cn-shanghai.aliyuncs.com/front/ball/images/9d8cbc9d-9601-4e2d-ab23-76420a4537d6.png";
const Poster = (props, ref) => {
const { data } = props;
const {
playType,
ntrp,
mainCoursal,
nickname,
avatarUrl,
title,
locationName,
date,
time,
} = data;
useEffect(() => {
drawCard();
}, []);
useImperativeHandle(ref, () => ({
generateImage: () =>
new Promise((resolve, reject) => {
const query = Taro.createSelectorQuery();
query
.select("#cardCanvas")
.fields({ node: true, size: true })
.exec((res) => {
const canvas = res[0].node;
// ⚠️ 关键：传 canvas，而不是 canvasId
Taro.canvasToTempFilePath({
canvas,
success: (res) => resolve(res.tempFilePath),
fail: (err) => reject(err),
});
});
}),
}));
const drawCard = async () => {
const query = Taro.createSelectorQuery();
query
.select("#cardCanvas")
.fields({ node: true, size: true })
.exec(async (res) => {
const canvas = res[0].node;
const ctx = canvas.getContext("2d");
const dpr = Taro.getWindowInfo().pixelRatio;
const width = 600; // px
const height = 1000;
canvas.width = width * dpr;
canvas.height = height * dpr;
ctx.scale(dpr, dpr);
// 背景卡片
// roundRect(ctx, 0, 0, width, height, 20, "#fff");
// 整体背景
roundRectGradient(ctx, 0, 0, width, height, 24, "#BFFFEF", "#F2FFFC");
// 顶部图片
const img = await loadImage(canvas, mainCoursal);
// roundRect(ctx, 20, 20, width - 40, width - 40, 20, "#fff");
await drawCoverImage(
ctx,
mainCoursal,
img,
10,
10,
width - 20,
width - 20,
20
);
// 标签
let left = drawTag(ctx, playType, 18, 18);
drawTag(ctx, ntrp, left + 4, 18);
let top = width - 10;
left = 16;
top += 16;
// 用户头像（圆形）
const avatar = await loadImage(canvas, avatarUrl);
ctx.save();
ctx.beginPath();
ctx.arc(left + 30, top + 30, 30, 0, Math.PI * 2);
ctx.clip();
ctx.drawImage(avatar, left, top, 60, 60);
ctx.restore();
// 头像右边 6
left += 66;
top += 40;
// 用户名 + 邀请
ctx.fillStyle = "#333";
ctx.font = "bold 28px sans-serif";
// ctx.fillText("华巴轮卡 邀你加入球局", 100, 370);
const nickNameText = `${nickname} 邀你加入`;
ctx.fillText(nickNameText, left, top);
let textW = ctx.measureText(nickNameText).width;
left += textW;
ctx.fillStyle = "#00B578";
ctx.fillText("球局", left, top);
const ringImg = await loadImage(canvas, ringUrl);
ctx.drawImage(ringImg, left - 10, top - 30, 80, 36);
left = 16;
top += 60;
// 活动标题
ctx.fillStyle = "#333";
ctx.font = "bold 34px sans-serif";
let r = drawTextWrap(ctx, title, left, top, width - 32, 40);
top = r.top + 40;
left = 16;
const dateImg = await loadImage(canvas, dateIcon);
await drawCoverImage(ctx, dateIcon, dateImg, left, top, 40, 40, 8);
left += 40 + 8;
top += 30;
// 时间
ctx.font = "26px sans-serif";
ctx.fillStyle = "#00B578";
ctx.fillText(date, left, top);
textW = ctx.measureText(date).width;
left += 8 + textW;
ctx.fillStyle = "#333";
ctx.fillText(time, left, top);
left = 16;
top += 24;
const mapImg = await loadImage(canvas, mapIcon);
await drawCoverImage(ctx, dateIcon, mapImg, left, top, 40, 40, 8);
left += 40 + 8;
top += 30;
// 地址
ctx.fillStyle = "#666";
ctx.font = "26px sans-serif";
r = drawTextWrap(ctx, locationName, left, top, width - 32 - left, 34);
left = 16;
top = r.top + 60;
const logoWh = await getImageWh(logoText);
console.log(logoWh);
const logoTextImg = await loadImage(canvas, logoText);
ctx.drawImage(
logoTextImg,
left,
top,
400,
// 56
400 / (logoWh.width / logoWh.height)
);
const qrImg = await loadImage(canvas, qrCodeUrl);
ctx.drawImage(qrImg, width - 12 - 150, top - 50, 160, 160);
left = 16;
top += 400 / (logoWh.width / logoWh.height) + 30;
// 底部文字
ctx.fillStyle = "#333";
ctx.font = "20px sans-serif";
ctx.fillText("长按识别二维码，快来加入，有你就有场！", left, top);
// 小程序码
// const qrcode = await loadImage(canvas, "小程序码路径");
// ctx.drawImage(qrcode, 480, 880, 100, 100);
// 导出图片
// Taro.canvasToTempFilePath({
// canvas,
// success: (res) => {
// console.log("导出路径", res.tempFilePath);
// },
// fail: (err) => console.error(err),
// });
});
};
const roundRectGradient = (ctx, x, y, w, h, r, color1, color2) => {
const gradient = ctx.createLinearGradient(x, y, x, y + h);
gradient.addColorStop(0, color1);
gradient.addColorStop(1, color2);
ctx.beginPath();
ctx.moveTo(x + r, y);
ctx.lineTo(x + w - r, y);
ctx.arcTo(x + w, y, x + w, y + r, r);
ctx.lineTo(x + w, y + h - r);
ctx.arcTo(x + w, y + h, x + w - r, y + h, r);
ctx.lineTo(x + r, y + h);
ctx.arcTo(x, y + h, x, y + h - r, r);
ctx.lineTo(x, y + r);
ctx.arcTo(x, y, x + r, y, r);
ctx.closePath();
ctx.fillStyle = gradient;
ctx.fill();
};
const drawCoverImage = async (ctx, src, img, x, y, w, h, r = 0) => {
const { width, height } = await getImageWh(src);
const imgW = width;
const imgH = height;
// 计算缩放比例，取较大值，保证完全覆盖
const scale = Math.max(w / imgW, h / imgH);
// 缩放后的宽高
const newW = imgW * scale;
const newH = imgH * scale;
// 居中偏移
const offsetX = x + (w - newW) / 2;
const offsetY = y + (h - newH) / 2;
ctx.save();
// 如果需要圆角
if (r > 0) {
ctx.beginPath();
ctx.moveTo(x + r, y);
ctx.lineTo(x + w - r, y);
ctx.arcTo(x + w, y, x + w, y + r, r);
ctx.lineTo(x + w, y + h - r);
ctx.arcTo(x + w, y + h, x + w - r, y + h, r);
ctx.lineTo(x + r, y + h);
ctx.arcTo(x, y + h, x, y + h - r, r);
ctx.lineTo(x, y + r);
ctx.arcTo(x, y, x + r, y, r);
ctx.closePath();
ctx.clip();
}
// 绘制图片 (cover 效果)
ctx.drawImage(img, offsetX, offsetY, newW, newH);
ctx.restore();
};
/** 加载图片 */
const loadImage = (canvas, src) => {
return new Promise((resolve) => {
const img = canvas.createImage();
img.onload = () => resolve(img);
img.src = src;
});
};
/** 圆角矩形 */
const roundRect = (ctx, x, y, w, h, r, fillStyle) => {
ctx.beginPath();
ctx.moveTo(x + r, y);
ctx.lineTo(x + w - r, y);
ctx.arcTo(x + w, y, x + w, y + r, r);
ctx.lineTo(x + w, y + h - r);
ctx.arcTo(x + w, y + h, x + w - r, y + h, r);
ctx.lineTo(x + r, y + h);
ctx.arcTo(x, y + h, x, y + h - r, r);
ctx.lineTo(x, y + r);
ctx.arcTo(x, y, x + r, y, r);
ctx.closePath();
ctx.fillStyle = fillStyle;
ctx.fill();
};
/** 绘制标签 */
const drawTag = (ctx, text, x, y) => {
ctx.font = "22px sans-serif";
const padding = 12;
const textWidth = ctx.measureText(text).width;
roundRect(ctx, x, y, textWidth + padding * 2, 40, 20, "#fff");
ctx.fillStyle = "#333";
ctx.fillText(text, x + padding, y + 28);
return x + textWidth + padding * 2;
};
/** 文本换行 */
const drawTextWrap = (ctx, text, x, y, maxWidth, lineHeight) => {
let line = "";
const lines = [];
for (let char of text) {
const testLine = line + char;
if (ctx.measureText(testLine).width > maxWidth) {
lines.push(line);
line = char;
} else {
line = testLine;
}
}
if (line) lines.push(line);
lines.forEach((l, i) => {
ctx.fillText(l, x, y + i * lineHeight);
});
const lastLineText = lines.at(-1);
return {
left: x + ctx.measureText(lastLineText),
top: y + (lines.length - 1) * lineHeight,
};
};
return (
<Canvas
type="2d"
id="cardCanvas"
style={{
width: "600rpx",
height: "1000rpx",
// position: "absolute",
// left: "-9999px",
}}
/>
);
};
export default forwardRef(Poster);

2
src/components/index.ts
View File

@@ -25,7 +25,6 @@ import GeneralNavbar from "./GeneralNavbar";
import RadarChart from './Radar'
import EmptyState from './EmptyState';
import NTRPTestEntryCard from './NTRPTestEntryCard'
import Poster from './Poster'
export {
ActivityTypeSwitch,
@@ -56,5 +55,4 @@ export {
RadarChart,
EmptyState,
NTRPTestEntryCard,
Poster,
};