| | |
| | | </PIMTable> |
| | | </div> |
| | | <Modal ref="modalRef" @success="getTableData"></Modal> |
| | | <el-dialog v-model="qrDialogVisible" title="二维码" width="300px"> |
| | | <div style="text-align:center;"> |
| | | <img :src="qrCodeUrl" alt="二维码" style="width:200px;height:200px;" /> |
| | | <div style="margin:10px 0;"> |
| | | <el-button type="primary" @click="downloadQRCode">下载二维码图片</el-button> |
| | | </div> |
| | | </div> |
| | | </el-dialog> |
| | | <el-dialog v-model="qrDialogVisible" title="二维码" width="300px"> |
| | | <div style="text-align:center;"> |
| | | <img :src="qrCodeUrl" alt="二维码" style="width:200px;height:200px;" /> |
| | | <div style="margin-top:6px;font-size:14px;color:#333;">{{ qrRowData?.deviceName }}</div> |
| | | <div style="margin:10px 0;"> |
| | | <el-button type="primary" @click="downloadQRCode">下载二维码图片</el-button> |
| | | </div> |
| | | </div> |
| | | </el-dialog> |
| | | </div> |
| | | </template> |
| | | |
| | |
| | | }; |
| | | |
| | | const downloadQRCode = () => { |
| | | const a = document.createElement("a"); |
| | | a.href = qrCodeUrl.value; |
| | | a.download = `${qrRowData.value.deviceName || "二维码"}.png`; |
| | | a.click(); |
| | | const name = qrRowData.value?.deviceName || "二维码"; |
| | | const img = new Image(); |
| | | img.src = qrCodeUrl.value; |
| | | img.onload = () => { |
| | | const padding = 10; |
| | | const qrSize = 200; |
| | | const textHeight = 24; // space for text |
| | | const width = qrSize + padding * 2; |
| | | const height = qrSize + padding * 2 + textHeight; |
| | | const canvas = document.createElement("canvas"); |
| | | canvas.width = width; |
| | | canvas.height = height; |
| | | const ctx = canvas.getContext("2d"); |
| | | // background |
| | | ctx.fillStyle = "#ffffff"; |
| | | ctx.fillRect(0, 0, width, height); |
| | | // draw QR centered |
| | | ctx.drawImage(img, padding, padding, qrSize, qrSize); |
| | | // draw name centered below |
| | | ctx.fillStyle = "#333"; |
| | | ctx.font = "14px Arial"; |
| | | ctx.textAlign = "center"; |
| | | ctx.textBaseline = "middle"; |
| | | const maxTextWidth = width - padding * 2; |
| | | let displayName = name; |
| | | // ellipsis if too long |
| | | while (ctx.measureText(displayName).width > maxTextWidth && displayName.length > 0) { |
| | | displayName = displayName.slice(0, -1); |
| | | } |
| | | if (displayName !== name) displayName = displayName + "…"; |
| | | ctx.fillText(displayName, width / 2, qrSize + padding + textHeight / 2); |
| | | |
| | | const dataUrl = canvas.toDataURL("image/png"); |
| | | const a = document.createElement("a"); |
| | | a.href = dataUrl; |
| | | a.download = `${name}.png`; |
| | | a.click(); |
| | | }; |
| | | }; |
| | | |
| | | onMounted(() => { |
| | | filters.entryDate = [ |
| | | dayjs().format("YYYY-MM-DD"), |
| | | dayjs().add(1, "day").format("YYYY-MM-DD"), |
| | | ] |
| | | filters.entryDateStart = dayjs().format("YYYY-MM-DD") |
| | | filters.entryDateEnd = dayjs().add(1, "day").format("YYYY-MM-DD") |
| | | getTableData(); |
| | | }); |
| | | </script> |