feat: 特殊标签打印

This commit is contained in:
砂糖
2025-09-12 13:08:14 +08:00
parent 1477a374be
commit bf08f429e1
10 changed files with 1405 additions and 161 deletions

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<template>
<div class="label-render-container">
<!-- 操作按钮 -->
<div class="action-buttons">
<el-button type="primary" @click="downloadLabelAsImage">下载标签图片</el-button>
<el-button type="primary" @click="printLabel" style="margin-left: 10px;">打印标签</el-button>
</div>
<!-- 标签预览容器 -->
<div class="preview-container" id="label-preview-container" ref="labelRef">
<ProductionTagPreview v-if="labelType === '2'" :content="content" />
<OuterTagPreview v-if="labelType === '3'" :content="content" />
<SampleTagPreview v-if="labelType === '4'" :content="content" />
<ForgeTagPreview v-if="labelType === '5'" :content="content" />
<SaltSprayTagPreview v-if="labelType === '6'" :content="content" />
</div>
</div>
</template>
<script>
import domToImage from 'dom-to-image';
import printJS from 'print-js';
import { Message } from 'element-ui'; // 若使用Element UI引入消息提示
import ProductionTagPreview from './ProductionTagPreview.vue';
import OuterTagPreview from './OuterTagPreview.vue';
import SampleTagPreview from './SampleTagPreview.vue';
import ForgeTagPreview from './ForgeTagPreview.vue';
import SaltSprayTagPreview from './SaltSprayTagPreview.vue';
export default {
name: 'LabelRender',
components: {
ProductionTagPreview,
OuterTagPreview,
SampleTagPreview,
ForgeTagPreview,
SaltSprayTagPreview,
},
props: {
labelType: {
type: String,
required: true,
},
content: {
type: Object,
required: true,
},
},
methods: {
// -------- 图片下载方法 --------
async downloadLabelAsImage() {
// 1. 获取要转换的DOM容器
const labelContainer = document.getElementById('label-preview-container');
if (!labelContainer) {
Message.error('未找到标签容器,无法下载');
return;
}
try {
// 2. 用dom-to-image生成PNG图片的DataURL
const dataUrl = await domToImage.toPng(labelContainer);
// 3. 创建临时a标签触发下载
const downloadLink = document.createElement('a');
downloadLink.href = dataUrl;
downloadLink.download = `标签_${new Date().getTime()}.png`; // 自定义文件名(带时间戳防重复)
document.body.appendChild(downloadLink);
downloadLink.click();
document.body.removeChild(downloadLink); // 下载后移除临时标签
} catch (error) {
console.error('标签图片下载失败:', error);
Message.error('标签图片下载失败,请重试');
}
},
// 打印方法
printLabel() {
// 1. 获取标签容器DOM
const labelContainer = document.getElementById('label-preview-container');
if (!labelContainer) {
Message.error('未找到标签容器,无法打印');
return;
}
// 2. 获取标签原始宽高(用于保持尺寸)
const labelWidth = labelContainer.offsetWidth;
const labelHeight = labelContainer.offsetHeight;
// 3. 定义打印样式(确保与预览一致)
const printStyles = `
/* 基础容器样式 */
#label-preview-container {
width: ${labelWidth}px !important;
height: ${labelHeight}px !important;
padding: 1.5rem !important;
box-sizing: border-box !important;
border: 1px solid #333 !important;
background-color: #fff !important;
}
.company-header {
display: flex;
align-items: center;
margin-bottom: 0.3em;
}
.company-logo {
width: 2.8em;
height: 2.8em;
margin-right: 0.5em;
}
.company-name {
font-size: 0.95em;
line-height: 1.1;
}
.english-name {
font-size: 0.6em;
opacity: 0.8;
}
.product-title {
font-size: 1.4em;
font-weight: bold;
text-align: center;
margin-bottom: 0.4em;
border-bottom: 1.5px solid #000;
padding-bottom: 0.2em;
}
.footer-info {
display: flex;
justify-content: space-between;
align-items: flex-start;
font-size: 0.7em;
margin-top: 0.3em;
}
.address {
line-height: 1.2;
width: 65%;
}
.english-address {
opacity: 0.8;
font-size: 0.9em;
}
.contact-timestamp {
text-align: right;
line-height: 1.4;
}
/* 表格与单元格样式(解决空单元格问题) */
table {
border-collapse: collapse !important;
width: 100% !important;
table-layout: fixed !important; /* 固定列宽 */
}
td {
border: 1px solid #000 !important;
padding: 6px 4px !important; /* 确保单元格大小 */
min-height: 28px !important; /* 空单元格最小高度 */
vertical-align: middle !important;
text-align: center !important;
word-break: break-all !important; /* 长文本换行 */
font-family: "SimSun", serif !important;
font-size: 14px !important;
}
/* 标签与值单元格样式 */
.label-cell {
font-weight: bold !important;
background-color: #f5f5f5 !important;
}
.value-cell {
background-color: #fff !important;
}
/* 列宽分配(根据实际列数调整) */
td { width: 25% !important; } /* 4列布局 */
td[colspan="2"] { width: 50% !important; }
td[colspan="3"] { width: 75% !important; }
td[colspan="4"] { width: 100% !important; }
`;
// 4. 调用print-js打印
printJS({
printable: 'label-preview-container', // 要打印的元素ID
type: 'html', // 打印类型为HTML
header: null, // 不显示页眉
footer: null, // 不显示页脚
style: printStyles, // 注入打印样式
scanStyles: false, // 禁用自动扫描页面样式(避免冲突)
targetStyles: ['*'], // 允许所有样式生效
printContainer: true, // 打印指定容器
onError: (error) => { // 错误处理
console.error('打印失败:', error);
Message.error('打印失败,请重试');
}
});
}
},
};
</script>
<style scoped>
.label-render-container {
width: 100%;
height: calc(100vh - 200px);
display: flex;
flex-direction: column;
/* 按钮与预览垂直排列 */
justify-content: flex-start;
align-items: center;
padding: 2rem;
box-sizing: border-box;
}
.action-buttons {
margin-bottom: 1rem;
/* 按钮与预览区的间距 */
}
.preview-container {
background-color: #fff;
color: #000;
padding: 1.5rem;
width: fit-content;
min-width: 200px;
border-radius: 6px;
box-shadow: 0 0 60px rgba(255, 255, 255, 0.2);
border: 1px solid rgba(255, 255, 255, 0.1);
overflow: hidden;
transition: all 0.3s ease;
}
.preview-container:hover {
box-shadow: 0 0 80px rgba(255, 255, 255, 0.3);
transform: translateY(-2px);
}
</style>