const store = require('../../utils/store.js'); const api = require('../../utils/api.js'); const { toastErr } = require('../../utils/ui.js'); // 卡片画布尺寸(逻辑像素)。真实导出会按 dpr 放大 const W = 620; const H = 1480; // 在 canvas 2d 上加载一张图(远程或本地),resolve 出可直接 drawImage 的 image 对象。 // 加载失败 resolve(null)——头像或小程序码缺一张不该让整张卡画不出来 function loadImage(canvas, src) { return new Promise((resolve) => { if (!src) return resolve(null); const img = canvas.createImage(); img.onload = () => resolve(img); img.onerror = () => resolve(null); img.src = src; }); } Page({ data: { petId: '', card: null, cardImg: '', qrReady: false, saving: false, needPhone: false, // 没手机号:门槛,先验证才生成 phoneRefused: false, // 用户拒绝了授权 manualMode: false, // 手动填手机号(getPhoneNumber 唤不起时的兜底) manualPhone: '', }, onLoad(q) { store .ready() .then(() => { const id = (q && q.id) || store.currentPetId(); if (!id) { wx.showToast({ title: '先选一只毛孩子', icon: 'none' }); return; } this.setData({ petId: id }); return api.petIDCard(id); }) .then((card) => { if (!card) return; this.setData({ card, qrReady: !!card.qr_ready }); // 门槛:没手机号不生成,先引导用微信验证 if (!card.phone) { this.setData({ needPhone: true }); return; } // 布局要等页面渲染完 canvas 节点才拿得到,放 nextTick wx.nextTick(() => this.draw()); }) .catch((e) => toastErr(e)); }, draw() { wx.createSelectorQuery() .select('#idCanvas') .fields({ node: true, size: true }) .exec((res) => { const node = res && res[0] && res[0].node; if (!node) return; let dpr = 2; try { dpr = (wx.getWindowInfo ? wx.getWindowInfo() : wx.getSystemInfoSync()).pixelRatio || 2; } catch (e) { dpr = 2; } this._dpr = dpr; node.width = W * dpr; node.height = H * dpr; const ctx = node.getContext('2d'); ctx.scale(dpr, dpr); const c = this.data.card || {}; // 两张远程图都就绪再开画,否则小程序码会画不上或画一半(plan 里点过名的坑) Promise.all([loadImage(node, c.avatar_url), loadImage(node, c.qr_url)]).then(([avatar, qr]) => { this.paint(ctx, node, c, avatar, qr); }); }); }, paint(ctx, node, c, avatar, qr) { ctx.clearRect(0, 0, W, H); // 外层留白背景 ctx.fillStyle = '#F3EFE8'; ctx.fillRect(0, 0, W, H); const pad = 30; const cardW = W - pad * 2; const fx = pad, cardW2 = cardW; const tags = (c.personality || '').split(',').filter(Boolean); // ══════════ 正面卡(暖黄)══════════ // 正反两张卡等高(都用 cardH),中间内容垂直居中,避免正面留空 const cardH = 540; const fH = cardH; const fY = pad; const gf = ctx.createLinearGradient(fx, fY, fx, fY + fH); gf.addColorStop(0, '#FFF7E0'); gf.addColorStop(1, '#FFE7AE'); this.roundRect(ctx, fx, fY, cardW2, fH, 30); ctx.fillStyle = gf; ctx.fill(); // 头像圆 + 白边 const avD = 150, avX = fx + 36, avY = fY + 52; ctx.save(); ctx.beginPath(); ctx.arc(avX + avD / 2, avY + avD / 2, avD / 2, 0, Math.PI * 2); ctx.clip(); if (avatar) { const iw = avatar.width || avD, ih = avatar.height || avD, side = Math.min(iw, ih); ctx.drawImage(avatar, (iw - side) / 2, (ih - side) / 2, side, side, avX, avY, avD, avD); } else { ctx.fillStyle = '#FFD9A3'; ctx.fillRect(avX, avY, avD, avD); ctx.fillStyle = '#8A5A18'; ctx.font = '64px sans-serif'; ctx.textAlign = 'center'; ctx.textBaseline = 'middle'; ctx.fillText(c.species === '狗狗' ? '🐶' : '🐱', avX + avD / 2, avY + avD / 2); } ctx.restore(); ctx.textBaseline = 'alphabetic'; ctx.beginPath(); ctx.arc(avX + avD / 2, avY + avD / 2, avD / 2, 0, Math.PI * 2); ctx.strokeStyle = '#fff'; ctx.lineWidth = 8; ctx.stroke(); // 名字 + 性别(头像右侧)。性别符号必须用「名字的字号」量宽度再定位, // 否则换成小字号后 measureText 量出的宽度偏小,符号会怼到名字上 const nx = avX + avD + 28; const nm = c.name || '毛孩子'; ctx.textAlign = 'left'; ctx.fillStyle = '#2D2925'; ctx.font = '700 52px sans-serif'; ctx.fillText(nm, nx, avY + 46); const nmW = ctx.measureText(nm).width; if (c.gender) { const isF = c.gender === '女孩'; ctx.fillStyle = isF ? '#E86A9B' : '#5B9BE8'; ctx.font = '600 34px sans-serif'; ctx.fillText(isF ? '♀' : '♂', nx + nmW + 16, avY + 44); } // 头像右的资料行 const kvF = (label, value, yy) => { ctx.textAlign = 'left'; ctx.font = '24px sans-serif'; ctx.fillStyle = '#A98C5A'; ctx.fillText(label, nx, yy); ctx.fillStyle = '#3D3427'; ctx.font = '600 26px sans-serif'; ctx.fillText(value || '—', nx + 78, yy); }; kvF('性别', c.gender, avY + 92); kvF('品种', c.breed, avY + 130); kvF('毛色', c.color, avY + 168); kvF('年龄', c.age, avY + 206); // 性格标签(没有就不画,避免留空行);性格+介绍整体在 info 和底栏之间垂直居中 const midTop = fY + 300, midBot = fY + fH - 92; const blockH = (tags.length ? 90 : 0) + (c.intro ? 70 : 0); let ty = midTop + Math.max(0, Math.floor((midBot - midTop - blockH) / 2)); if (tags.length) { ctx.textAlign = 'left'; ctx.fillStyle = '#8A5A18'; ctx.font = '600 24px sans-serif'; ctx.fillText('🐾 性格标签', fx + 34, ty); ty += 44; const tagColors = [['#FFE7A8', '#8A5A18'], ['#D6E9FF', '#2E6DA8'], ['#FFD9DE', '#C24A63']]; let tx = fx + 34; tags.forEach((t, i) => { ctx.font = '23px sans-serif'; const tw = ctx.measureText(t).width + 32; const col = tagColors[i % tagColors.length]; ctx.fillStyle = col[0]; this.roundRect(ctx, tx, ty - 28, tw, 40, 20); ctx.fill(); ctx.fillStyle = col[1]; ctx.textAlign = 'left'; ctx.fillText(t, tx + 16, ty); tx += tw + 14; }); ty += 46; } // 介绍 quote if (c.intro) { ctx.fillStyle = 'rgba(255,255,255,.6)'; this.roundRect(ctx, fx + 34, ty, cardW2 - 68, 60, 16); ctx.fill(); ctx.fillStyle = '#7A5A2E'; ctx.font = '25px sans-serif'; ctx.textAlign = 'left'; ctx.fillText('“ ' + c.intro + ' ”', fx + 54, ty + 40); } // 底部:身份ID + 一起生活天数(贴卡片底边) ctx.textAlign = 'left'; ctx.fillStyle = '#9C7A3E'; ctx.font = '22px sans-serif'; ctx.fillText('ID ' + (c.id_no || ''), fx + 34, fY + fH - 56); if (c.days > 0) { ctx.fillText('和主人一起生活的第 ' + c.days + ' 天', fx + 34, fY + fH - 22); } // 正面印章(右上角) this.drawStamp(ctx, fx + cardW2 - 78, fY + 82); // ══════════ 照护卡(淡紫,仿证件版式)══════════ const bY = fY + fH + 40, bH = cardH; const gbc = ctx.createLinearGradient(fx, bY, fx, bY + bH); gbc.addColorStop(0, '#E6E7FB'); gbc.addColorStop(1, '#F2F0FA'); this.roundRect(ctx, fx, bY, cardW2, bH, 30); ctx.fillStyle = gbc; ctx.fill(); // 大标题(两行左对齐):小字「X星人地球移民」+ 大字「居民身份卡」 // 汪星人=狗、喵星人=猫,其它兜底宠星人 const star = c.species === '狗狗' ? '汪' : c.species === '猫猫' ? '喵' : '宠'; ctx.textAlign = 'left'; ctx.fillStyle = '#8A90AE'; ctx.font = '600 27px sans-serif'; this.spacedText(ctx, star + '星人地球移民', fx + 44, bY + 70, 8); ctx.fillStyle = '#3E4A63'; ctx.font = '800 60px sans-serif'; ctx.fillText('居民身份卡', fx + 44, bY + 150); // 资料行(标签 + 值) const rowX = fx + 44; const kvB = (label, value, yy) => { ctx.textAlign = 'left'; ctx.font = '25px sans-serif'; ctx.fillStyle = '#9A9FB5'; ctx.fillText(label, rowX, yy); ctx.font = '600 26px sans-serif'; ctx.fillStyle = '#3E4A63'; ctx.fillText(value || '—', rowX + 160, yy); }; let ry = bY + 210; kvB('主人', c.owner, ry); ry += 48; kvB('联系电话', c.phone || '未验证', ry); ry += 48; kvB('签发机构', c.org || '肉垫计划', ry); ry += 48; kvB('有效期限', c.validity || '永久有效', ry); // 小程序码(右下角,直接落在淡紫底上) const qrD = 120, qrX = fx + cardW2 - 44 - qrD, qrY = bY + bH - 34 - qrD; ctx.fillStyle = '#fff'; this.roundRect(ctx, qrX, qrY, qrD, qrD, 14); ctx.fill(); if (qr) { ctx.drawImage(qr, qrX + 9, qrY + 9, qrD - 18, qrD - 18); } else { ctx.fillStyle = '#A7ABC4'; ctx.font = '18px sans-serif'; ctx.textAlign = 'center'; ctx.fillText('小程序码', qrX + qrD / 2, qrY + qrD / 2 - 2); ctx.fillText('待发布', qrX + qrD / 2, qrY + qrD / 2 + 24); } // 扫码说明(左侧,和小程序码同高) ctx.textAlign = 'left'; ctx.fillStyle = '#8A90AE'; ctx.font = '22px sans-serif'; ctx.fillText('微信扫一扫', fx + 44, qrY + qrD / 2 - 6); ctx.fillText('查看' + (c.name || '') + '的身份信息', fx + 44, qrY + qrD / 2 + 28); // 背面印章(右上角) this.drawStamp(ctx, fx + cardW2 - 84, bY + 92); // 只导出到实际内容底部,避免卡片下面拖一条空白 const dpr = this._dpr || 2; const contentH = bY + bH + pad; wx.canvasToTempFilePath( { canvas: node, x: 0, y: 0, width: W, height: contentH, destWidth: W * dpr, destHeight: contentH * dpr, fileType: 'png', success: (r) => this.setData({ cardImg: r.tempFilePath }), fail: () => wx.showToast({ title: '生成失败,稍后再试', icon: 'none' }), }, this, ); }, roundRect(ctx, x, y, w, h, r) { ctx.beginPath(); ctx.moveTo(x + r, y); ctx.arcTo(x + w, y, x + w, y + h, r); ctx.arcTo(x + w, y + h, x, y + h, r); ctx.arcTo(x, y + h, x, y, r); ctx.arcTo(x, y, x + w, y, r); ctx.closePath(); }, // 逐字加字距地画一行(canvas 的 letterSpacing 各端支持不一,手动排最稳) spacedText(ctx, text, x, y, gap) { let cx = x; for (const ch of text) { ctx.fillText(ch, cx, y); cx += ctx.measureText(ch).width + gap; } }, // 五角星路径(调用方负责 fill/stroke) star(ctx, cx, cy, rO, rI, n) { ctx.beginPath(); for (let i = 0; i < n * 2; i++) { const r = i % 2 === 0 ? rO : rI; const a = -Math.PI / 2 + (i * Math.PI) / n; const x = cx + r * Math.cos(a), y = cy + r * Math.sin(a); if (i === 0) ctx.moveTo(x, y); else ctx.lineTo(x, y); } ctx.closePath(); }, // 红色公章:双圈 + 顶部五角星 + 「肉垫计划 / 官方认证」,略微旋转、半透明 drawStamp(ctx, cx, cy) { ctx.save(); ctx.translate(cx, cy); ctx.rotate(-0.16); ctx.globalAlpha = 0.68; ctx.strokeStyle = '#CE4534'; ctx.fillStyle = '#CE4534'; ctx.lineWidth = 4; ctx.beginPath(); ctx.arc(0, 0, 52, 0, Math.PI * 2); ctx.stroke(); ctx.lineWidth = 1.5; ctx.beginPath(); ctx.arc(0, 0, 43, 0, Math.PI * 2); ctx.stroke(); this.star(ctx, 0, -23, 11, 4.6, 5); ctx.fill(); ctx.textAlign = 'center'; ctx.textBaseline = 'middle'; ctx.font = '700 25px sans-serif'; ctx.fillText('肉垫计划', 0, 10); ctx.font = '13px sans-serif'; ctx.fillText('官方认证', 0, 32); ctx.restore(); ctx.globalAlpha = 1; ctx.textAlign = 'left'; ctx.textBaseline = 'alphabetic'; }, // 微信取手机号:新版 getPhoneNumber 返回动态 code,后端换成真实手机号存库, // 拿回后重新取卡(此时电话就有了)并重画 onGetPhone(e) { const d = e.detail || {}; if (!d.code) { // 用户拒绝授权:不给生成,明确提示 this.setData({ phoneRefused: true }); return wx.showToast({ title: '没有手机号,无法生成身份卡', icon: 'none' }); } wx.showLoading({ title: '验证中…', mask: true }); api .bindPhone(d.code) .then(() => api.petIDCard(this.data.petId)) .then((card) => { wx.hideLoading(); if (!card) return; this.setData({ card, qrReady: !!card.qr_ready, needPhone: false, phoneRefused: false }); wx.nextTick(() => this.draw()); wx.showToast({ title: '手机号已验证', icon: 'success' }); }) .catch((err) => { wx.hideLoading(); toastErr(err, '验证失败'); }); }, // 手动填手机号兜底(getPhoneNumber 需企业认证,唤不起时用这个) showManual() { this.setData({ manualMode: true }); }, onManualPhone(e) { this.setData({ manualPhone: e.detail.value }); }, submitManual() { const p = (this.data.manualPhone || '').trim(); if (!/^1\d{10}$/.test(p)) return wx.showToast({ title: '手机号格式不对', icon: 'none' }); wx.showLoading({ title: '保存中…', mask: true }); api .updateProfile({ phone: p }) .then(() => api.petIDCard(this.data.petId)) .then((card) => { wx.hideLoading(); if (!card) return; this.setData({ card, qrReady: !!card.qr_ready, needPhone: false, manualMode: false }); wx.nextTick(() => this.draw()); }) .catch((err) => { wx.hideLoading(); toastErr(err, '保存失败'); }); }, onSave() { if (!this.data.cardImg) return wx.showToast({ title: '还在生成,稍等一下', icon: 'none' }); if (this.data.saving) return; this.setData({ saving: true }); wx.saveImageToPhotosAlbum({ filePath: this.data.cardImg, success: () => wx.showToast({ title: '已保存到相册', icon: 'success' }), fail: (err) => { const msg = (err && err.errMsg) || ''; if (msg.indexOf('cancel') >= 0) return; // 拒过一次后 authorize 不再弹,必须引导去设置页 if (msg.indexOf('auth deny') >= 0 || msg.indexOf('authorize') >= 0) { wx.showModal({ title: '需要相册权限', content: '保存身份卡需要允许访问相册,去设置里打开一下?', confirmText: '去设置', success: (r) => r.confirm && wx.openSetting({}), }); return; } wx.showToast({ title: '保存失败', icon: 'none' }); }, complete: () => this.setData({ saving: false }), }); }, onShareAppMessage() { const c = this.data.card || {}; return { title: `${c.name || '我家毛孩子'} 的居民身份卡`, path: '/pages/idcard/idcard?id=' + this.data.petId, imageUrl: this.data.cardImg || '', // 用画好的卡当分享封面 }; }, });