双机架轧辊管理

klp-ui/src/views/mes/roll/working/index.vue

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+<template>
+  <div class="app-container working-roll-page">
+
+    <!-- ① 顶部行：作业辊一览（2/3）+ 可用轧辊（1/3） -->
+    <div class="top-row">
+
+      <!-- 作业辊一览 -->
+      <el-card shadow="never" class="roll-table-card top-row__main">
+        <div slot="header" class="card-header">
+          <span class="card-title"><i class="el-icon-s-grid" /> 作业辊一览</span>
+          <span class="header-meta" v-if="current['1#'] && current['1#'].changeTime">
+            1# 末次换辊：{{ current['1#'].changeTime }}
+          </span>
+          <span class="header-meta" v-if="current['2#'] && current['2#'].changeTime">
+            &nbsp;·&nbsp;2# 末次换辊：{{ current['2#'].changeTime }}
+          </span>
+          <span style="margin-left:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap">
+            <el-button size="mini" icon="el-icon-refresh-right" @click="handleOpenChange('1#')">1# 换辊</el-button>
+            <el-button size="mini" icon="el-icon-refresh-right" @click="handleOpenChange('2#')">2# 换辊</el-button>
+            <el-divider direction="vertical" />
+            <el-button type="success" size="mini" icon="el-icon-plus"   @click="handleAddStandby('1#')">1# 添加下批</el-button>
+            <el-button type="danger"  size="mini" icon="el-icon-delete" @click="handleClearStandby('1#')"
+              :disabled="!(standbyList['1#'] && standbyList['1#'].length)">1# 清空</el-button>
+            <el-button type="success" size="mini" icon="el-icon-plus"   @click="handleAddStandby('2#')">2# 添加下批</el-button>
+            <el-button type="danger"  size="mini" icon="el-icon-delete" @click="handleClearStandby('2#')"
+              :disabled="!(standbyList['2#'] && standbyList['2#'].length)">2# 清空</el-button>
+          </span>
+        </div>
+
+        <el-table
+          ref="mainTable"
+          :data="mergedRows"
+          v-loading="loadingCurrent['1#'] || loadingCurrent['2#'] || loadingStandby['1#'] || loadingStandby['2#']"
+          :row-class-name="rowClass"
+          :span-method="mergeParamCol"
+          border
+          size="small"
+          style="width:100%"
+        >
+          <el-table-column label="参数" width="126" align="left">
+            <template slot-scope="scope">
+              <span :class="['param-label', scope.row.group]">{{ scope.row.label }}</span>
+            </template>
+          </el-table-column>
+
+          <el-table-column label="当前在机轧辊" align="center">
+            <el-table-column label="1#" align="center" min-width="88">
+              <template slot-scope="scope">
+                <param-cell :data="scope.row.cur1" />
+              </template>
+            </el-table-column>
+            <el-table-column label="2#" align="center" min-width="88">
+              <template slot-scope="scope">
+                <param-cell :data="scope.row.cur2" />
+              </template>
+            </el-table-column>
+          </el-table-column>
+
+          <el-table-column label="下批轧辊" align="center">
+            <el-table-column label="1#" align="center" min-width="88">
+              <template slot-scope="scope">
+                <div
+                  :class="['sb-cell',
+                    scope.row.sb1 && scope.row.sb1.standbyId ? 'sb-cell--del' :
+                    scope.row.rollType ? 'sb-cell--add' : '']"
+                  @click="handleSbCellClick(scope.row.sb1, '1#', scope.row.rollType, scope.row.position)"
+                >
+                  <param-cell :data="scope.row.sb1" />
+                </div>
+              </template>
+            </el-table-column>
+            <el-table-column label="2#" align="center" min-width="88">
+              <template slot-scope="scope">
+                <div
+                  :class="['sb-cell',
+                    scope.row.sb2 && scope.row.sb2.standbyId ? 'sb-cell--del' :
+                    scope.row.rollType ? 'sb-cell--add' : '']"
+                  @click="handleSbCellClick(scope.row.sb2, '2#', scope.row.rollType, scope.row.position)"
+                >
+                  <param-cell :data="scope.row.sb2" />
+                </div>
+              </template>
+            </el-table-column>
+          </el-table-column>
+        </el-table>
+      </el-card>
+
+      <!-- 可用轧辊（离线） -->
+      <el-card shadow="never" class="roll-table-card top-row__aside">
+        <div slot="header" class="card-header">
+          <span class="card-title"><i class="el-icon-files" /> 可用轧辊（离线）</span>
+          <el-button size="mini" icon="el-icon-refresh" style="margin-left:auto" @click="loadOfflineRolls">刷新</el-button>
+        </div>
+        <el-table v-loading="offlineLoading" :data="offlineRolls" size="small" :height="asideTableHeight" style="width:100%">
+          <el-table-column label="辊型" align="center" prop="rollType" width="58">
+            <template slot-scope="scope">
+              <el-tag size="mini" :type="scope.row.rollType === 'WR' ? 'primary' : 'warning'">
+                {{ scope.row.rollType }}
+              </el-tag>
+            </template>
+          </el-table-column>
+          <el-table-column label="轧辊编号" align="center" prop="rollNo" min-width="110" show-overflow-tooltip />
+          <el-table-column label="辊径(mm)" align="center" width="82">
+            <template slot-scope="scope">
+              {{ scope.row.currentDia != null ? scope.row.currentDia : scope.row.initialDia }}
+            </template>
+          </el-table-column>
+          <el-table-column label="粗糙度" align="center" prop="roughness" width="70" />
+          <el-table-column label="磨削次数" align="center" prop="grindCount" width="70" />
+        </el-table>
+      </el-card>
+
+    </div>
+
+    <!-- ② 换辊历史 -->
+    <el-card shadow="never" class="roll-table-card" style="margin-top:16px">
+      <div slot="header" class="card-header">
+        <span class="card-title"><i class="el-icon-document" /> 换辊历史</span>
+        <el-form :inline="true" size="small" style="margin-left:auto;margin-bottom:0">
+          <el-form-item label="机架" style="margin-bottom:0">
+            <el-select v-model="historyQuery.standNo" placeholder="全部" clearable style="width:100px" @change="loadHistory">
+              <el-option label="1# 机架" value="1#" />
+              <el-option label="2# 机架" value="2#" />
+            </el-select>
+          </el-form-item>
+          <el-form-item label="类型" style="margin-bottom:0">
+            <el-select v-model="historyQuery.changeType" placeholder="全部" clearable style="width:110px" @change="loadHistory">
+              <el-option label="计划换辊" value="计划换辊" />
+              <el-option label="紧急换辊" value="紧急换辊" />
+            </el-select>
+          </el-form-item>
+          <el-form-item label="时间起" style="margin-bottom:0">
+            <el-date-picker v-model="historyQuery.changeTime" type="datetime"
+              value-format="yyyy-MM-dd HH:mm:ss" placeholder="开始时间"
+              style="width:160px" @change="loadHistory" />
+          </el-form-item>
+        </el-form>
+      </div>
+      <KLPTable v-loading="historyLoading" :data="historyList">
+        <el-table-column label="换辊编号"  align="center" prop="changeNo"   width="130" />
+        <el-table-column label="机架"      align="center" prop="standNo"    width="80" />
+        <el-table-column label="换辊时间"  align="center" prop="changeTime" width="160" />
+        <el-table-column label="类型"      align="center" prop="changeType" width="100">
+          <template slot-scope="scope">
+            <el-tag size="small" :type="scope.row.changeType === '紧急换辊' ? 'danger' : ''">{{ scope.row.changeType }}</el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column label="操作人"   align="center" prop="operator"  width="90" />
+        <el-table-column label="上工作辊" align="center" prop="upperWrNo" width="110" />
+        <el-table-column label="下工作辊" align="center" prop="lowerWrNo" width="110" />
+        <el-table-column label="上支撑辊" align="center" prop="upperBrNo" width="110" />
+        <el-table-column label="下支撑辊" align="center" prop="lowerBrNo" width="110" />
+        <el-table-column label="工作长度(m)" align="center" prop="workLength" width="110">
+          <template slot-scope="scope">
+            <span v-if="scope.row.workLength != null">{{ scope.row.workLength }}</span>
+            <span v-else style="color:#c0c4cc">—</span>
+          </template>
+        </el-table-column>
+        <el-table-column label="备注" align="left" prop="remark" min-width="100" show-overflow-tooltip />
+        <el-table-column label="操作" align="center" width="110" fixed="right">
+          <template slot-scope="scope">
+            <el-button size="mini" type="text" icon="el-icon-edit" @click="handleEditHistory(scope.row)">补录</el-button>
+            <el-button size="mini" type="text" icon="el-icon-delete" style="color:#c5221f"
+              @click="handleDeleteHistory(scope.row)">删除</el-button>
+          </template>
+        </el-table-column>
+      </KLPTable>
+      <pagination
+        v-show="historyTotal > 0"
+        :total="historyTotal"
+        :page.sync="historyQuery.pageNum"
+        :limit.sync="historyQuery.pageSize"
+        @pagination="loadHistory"
+      />
+    </el-card>
+
+    <!-- 换辊确认弹窗（纯展示，无需填写） -->
+    <el-dialog :title="changeForm.standNo + ' 机架 — 确认换辊'" :visible.sync="changeOpen" width="420px" append-to-body @close="resetChangeForm">
+      <div class="roll-preview">
+        <div class="roll-preview__title">以下轧辊将被换入</div>
+        <div class="roll-preview__item">
+          <span class="rp-label">上支撑辊</span>
+          <span class="rp-val">{{ changeForm.upperBrNo || '—' }}</span>
+          <span class="rp-dia" v-if="changeForm.upperBrDia">φ{{ changeForm.upperBrDia }} mm</span>
+        </div>
+        <div class="roll-preview__item">
+          <span class="rp-label">上工作辊</span>
+          <span class="rp-val">{{ changeForm.upperWrNo || '—' }}</span>
+          <span class="rp-dia" v-if="changeForm.upperWrDia">φ{{ changeForm.upperWrDia }} mm</span>
+        </div>
+        <div class="roll-preview__item">
+          <span class="rp-label">下工作辊</span>
+          <span class="rp-val">{{ changeForm.lowerWrNo || '—' }}</span>
+          <span class="rp-dia" v-if="changeForm.lowerWrDia">φ{{ changeForm.lowerWrDia }} mm</span>
+        </div>
+        <div class="roll-preview__item">
+          <span class="rp-label">下支撑辊</span>
+          <span class="rp-val">{{ changeForm.lowerBrNo || '—' }}</span>
+          <span class="rp-dia" v-if="changeForm.lowerBrDia">φ{{ changeForm.lowerBrDia }} mm</span>
+        </div>
+      </div>
+      <div class="roll-preview__tip">
+        换辊时间和操作人将由系统自动记录
+      </div>
+      <div slot="footer">
+        <el-button type="primary" :loading="changeSubmitting" @click="submitChange">确认换辊</el-button>
+        <el-button @click="changeOpen = false">取 消</el-button>
+      </div>
+    </el-dialog>
+
+    <!-- 换辊历史补录/编辑对话框 -->
+    <el-dialog title="换辊记录补录" :visible.sync="historyEditOpen" width="560px" append-to-body @close="historyEditForm = {}">
+      <el-form ref="historyEditForm" :model="historyEditForm" label-width="100px" size="small">
+        <el-row :gutter="16">
+          <el-col :span="12">
+            <el-form-item label="机架">
+              <el-input :value="historyEditForm.standNo" readonly />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="换辊类型">
+              <el-select v-model="historyEditForm.changeType" style="width:100%">
+                <el-option label="计划换辊" value="计划换辊" />
+                <el-option label="紧急换辊" value="紧急换辊" />
+                <el-option label="三级换辊" value="三级换辊" />
+              </el-select>
+            </el-form-item>
+          </el-col>
+        </el-row>
+        <el-row :gutter="16">
+          <el-col :span="12">
+            <el-form-item label="换辊时间">
+              <el-date-picker v-model="historyEditForm.changeTime" type="datetime"
+                value-format="yyyy-MM-dd HH:mm:ss" style="width:100%" />
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="操作人">
+              <el-input v-model="historyEditForm.operator" />
+            </el-form-item>
+          </el-col>
+        </el-row>
+        <el-divider content-position="left">工作辊</el-divider>
+        <el-row :gutter="16">
+          <el-col :span="12"><el-form-item label="上工作辊"><el-input v-model="historyEditForm.upperWrNo" /></el-form-item></el-col>
+          <el-col :span="12"><el-form-item label="上工作辊径"><el-input-number v-model="historyEditForm.upperWrDia" :precision="2" :min="0" style="width:100%" /></el-form-item></el-col>
+        </el-row>
+        <el-row :gutter="16">
+          <el-col :span="12"><el-form-item label="下工作辊"><el-input v-model="historyEditForm.lowerWrNo" /></el-form-item></el-col>
+          <el-col :span="12"><el-form-item label="下工作辊径"><el-input-number v-model="historyEditForm.lowerWrDia" :precision="2" :min="0" style="width:100%" /></el-form-item></el-col>
+        </el-row>
+        <el-divider content-position="left">支撑辊</el-divider>
+        <el-row :gutter="16">
+          <el-col :span="12"><el-form-item label="上支撑辊"><el-input v-model="historyEditForm.upperBrNo" /></el-form-item></el-col>
+          <el-col :span="12"><el-form-item label="上支撑辊径"><el-input-number v-model="historyEditForm.upperBrDia" :precision="2" :min="0" style="width:100%" /></el-form-item></el-col>
+        </el-row>
+        <el-row :gutter="16">
+          <el-col :span="12"><el-form-item label="下支撑辊"><el-input v-model="historyEditForm.lowerBrNo" /></el-form-item></el-col>
+          <el-col :span="12"><el-form-item label="下支撑辊径"><el-input-number v-model="historyEditForm.lowerBrDia" :precision="2" :min="0" style="width:100%" /></el-form-item></el-col>
+        </el-row>
+        <el-form-item label="备注">
+          <el-input v-model="historyEditForm.remark" type="textarea" :rows="2" />
+        </el-form-item>
+      </el-form>
+      <div slot="footer">
+        <el-button type="primary" @click="submitHistoryEdit">保 存</el-button>
+        <el-button @click="historyEditOpen = false">取 消</el-button>
+      </div>
+    </el-dialog>
+
+    <!-- 添加下批轧辊对话框 -->
+    <el-dialog title="添加下批轧辊" :visible.sync="standbyOpen" width="460px" append-to-body @close="resetStandbyForm">
+      <el-form ref="standbyForm" :model="standbyForm" :rules="standbyRules" label-width="100px">
+        <el-row :gutter="16">
+          <el-col :span="12">
+            <el-form-item label="机架" prop="standNo">
+              <el-select v-model="standbyForm.standNo" style="width:100%" :disabled="standbyFromCell">
+                <el-option label="1# 机架" value="1#" />
+                <el-option label="2# 机架" value="2#" />
+              </el-select>
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="辊型" prop="rollType">
+              <el-input
+                v-if="standbyFromCell"
+                :value="standbyForm.rollType === 'WR' ? '工作辊 WR' : '支撑辊 BR'"
+                readonly style="width:100%"
+              />
+              <el-select v-else v-model="standbyForm.rollType" placeholder="请选择" style="width:100%"
+                @change="handleStandbyRollTypeChange">
+                <el-option label="工作辊 WR" value="WR" />
+                <el-option label="支撑辊 BR" value="BR" />
+              </el-select>
+            </el-form-item>
+          </el-col>
+        </el-row>
+        <el-row :gutter="16">
+          <el-col :span="12">
+            <el-form-item label="辊位" prop="position">
+              <el-input
+                v-if="standbyFromCell"
+                :value="standbyForm.position === 'UP' ? '上辊' : '下辊'"
+                readonly style="width:100%"
+              />
+              <el-select v-else v-model="standbyForm.position" placeholder="请选择" style="width:100%">
+                <el-option label="上辊" value="UP" />
+                <el-option label="下辊" value="DOWN" />
+              </el-select>
+            </el-form-item>
+          </el-col>
+          <el-col :span="12">
+            <el-form-item label="轧辊编号" prop="rollNo">
+              <el-select v-model="standbyForm.rollNo" placeholder="请选择" filterable style="width:100%">
+                <el-option
+                  v-for="no in standbyForm.rollType === 'WR' ? wrOptions : brOptions"
+                  :key="no" :label="no" :value="no"
+                />
+              </el-select>
+            </el-form-item>
+          </el-col>
+        </el-row>
+        <el-form-item label="就绪时间">
+          <el-date-picker v-model="standbyForm.readyTime" type="datetime"
+            value-format="yyyy-MM-dd HH:mm:ss" placeholder="默认当前时间" style="width:100%" />
+        </el-form-item>
+        <el-form-item label="备注">
+          <el-input v-model="standbyForm.remark" type="textarea" :rows="2" />
+        </el-form-item>
+      </el-form>
+      <div slot="footer">
+        <el-button type="primary" @click="submitStandby">确 定</el-button>
+        <el-button @click="standbyOpen = false">取 消</el-button>
+      </div>
+    </el-dialog>
+
+  </div>
+</template>
+
+<script>
+import { getCurrentRolls, listRollChange, addRollChange, updateRollChange, delRollChange, getWorkLength } from '@/api/mes/roll/rollChange'
+import { listRollStandby, addRollStandby, delRollStandby, clearRollStandby } from '@/api/mes/roll/rollStandby'
+import { listRollOptions, listRollInfo } from '@/api/mes/roll/rollInfo'
+
+/**
+ * 单元格组件：只显示数值，不展示辊号副文本和删除图标
+ * 删除逻辑由外层 div 的 click 事件处理，保证所有单元格高度一致
+ */
+const ParamCell = {
+  name: 'ParamCell',
+  props: {
+    data: { type: Object, default: null }
+  },
+  render(h) {
+    const d = this.data
+    if (!d || d.val == null || d.val === '') {
+      return h('span', { class: 'cell-empty' }, '—')
+    }
+    return h('span', { class: 'cell-main' }, String(d.val))
+  }
+}
+
+export default {
+  name: 'WorkingRoll',
+  components: { ParamCell },
+  data() {
+    return {
+      current: { '1#': {}, '2#': {} },
+      loadingCurrent: { '1#': false, '2#': false },
+
+      standbyList: { '1#': [], '2#': [] },
+      loadingStandby: { '1#': false, '2#': false },
+
+      /** 当前在机轧辊实时工作长度（m） */
+      workLength: { '1#': null, '2#': null },
+
+      rollInfoMap: {},
+
+      historyLoading: false,
+      historyList: [],
+      historyTotal: 0,
+      historyQuery: { pageNum: 1, pageSize: 15, standNo: undefined, changeType: undefined, changeTime: undefined },
+
+      wrOptions: [],
+      brOptions: [],
+
+      historyEditOpen: false,
+      historyEditForm: {},
+
+      offlineRolls: [],
+      offlineLoading: false,
+      asideTableHeight: 400,
+
+      changeOpen: false,
+      changeSubmitting: false,
+      changeForm: this.getDefaultChangeForm(),
+
+      standbyOpen: false,
+      standbyForm: this.getDefaultStandbyForm(),
+      standbyFromCell: false,
+      standbyRules: {
+        standNo:  [{ required: true, message: '请选择机架',     trigger: 'change' }],
+        rollType: [{ required: true, message: '请选择辊型',     trigger: 'change' }],
+        position: [{ required: true, message: '请选择辊位',     trigger: 'change' }],
+        rollNo:   [{ required: true, message: '请选择轧辊编号', trigger: 'change' }]
+      }
+    }
+  },
+
+  computed: {
+    mergedRows() {
+      const c1 = this.current['1#'] || {}
+      const c2 = this.current['2#'] || {}
+      const ri = this.rollInfoMap
+
+      // 当前辊：值来自换辊记录，凸度/粗糙度/材质从 rollInfoMap 查
+      const cv = (val, rollNo) => ({
+        val: (val == null || val === '') ? null : val,
+        sub: rollNo || null
+      })
+      const rv = (rollNo, field) => {
+        const info = rollNo ? ri[rollNo] : null
+        const val = info ? info[field] : null
+        return { val: (val == null || val === '') ? null : val, sub: rollNo || null }
+      }
+
+      // 下批辊：优先取 standby 记录自身字段，为空则从 rollInfoMap 读（diameter 对应 currentDia）
+      const sv = (standNo, rollType, pos, field) => {
+        const item = (this.standbyList[standNo] || []).find(
+          i => i.rollType === rollType && i.position === pos
+        )
+        if (!item) return { val: null, sub: null }
+        let val = item[field]
+        if ((val == null || val === '') && item.rollNo) {
+          const info = ri[item.rollNo]
+          if (info) {
+            val = field === 'diameter'
+              ? (info.currentDia != null ? info.currentDia : info.initialDia)
+              : info[field]
+          }
+        }
+        return { val: (val == null || val === '') ? null : val, sub: item.rollNo, standbyId: item.standbyId }
+      }
+      const sm = (standNo, rollType, pos) => {
+        const item = (this.standbyList[standNo] || []).find(
+          i => i.rollType === rollType && i.position === pos
+        )
+        if (!item || !item.rollNo) return { val: null, sub: null }
+        const info = ri[item.rollNo]
+        return {
+          val: info ? (info.material || null) : null,
+          sub: item.rollNo,
+          standbyId: item.standbyId
+        }
+      }
+
+      return [
+        {
+          label: '上支承辊直径(mm)', group: 'br', rollType: 'BR', position: 'UP',
+          cur1: cv(c1.upperBrDia, c1.upperBrNo), cur2: cv(c2.upperBrDia, c2.upperBrNo),
+          sb1:  sv('1#', 'BR', 'UP', 'diameter'), sb2: sv('2#', 'BR', 'UP', 'diameter')
+        },
+        {
+          label: '上工作辊直径(mm)', group: 'wr', rollType: 'WR', position: 'UP',
+          cur1: cv(c1.upperWrDia, c1.upperWrNo), cur2: cv(c2.upperWrDia, c2.upperWrNo),
+          sb1:  sv('1#', 'WR', 'UP', 'diameter'), sb2: sv('2#', 'WR', 'UP', 'diameter')
+        },
+        {
+          label: '上工作辊凸度', group: 'wr', rollType: 'WR', position: 'UP',
+          cur1: rv(c1.upperWrNo, 'crown'), cur2: rv(c2.upperWrNo, 'crown'),
+          sb1:  sv('1#', 'WR', 'UP', 'crown'),    sb2: sv('2#', 'WR', 'UP', 'crown')
+        },
+        {
+          label: '上工作辊粗糙度(μm)', group: 'wr', rollType: 'WR', position: 'UP',
+          cur1: rv(c1.upperWrNo, 'roughness'), cur2: rv(c2.upperWrNo, 'roughness'),
+          sb1:  sv('1#', 'WR', 'UP', 'roughness'), sb2: sv('2#', 'WR', 'UP', 'roughness')
+        },
+        {
+          label: '工作辊类型', group: 'wr', rollType: 'WR', position: 'UP',
+          cur1: rv(c1.upperWrNo, 'material'), cur2: rv(c2.upperWrNo, 'material'),
+          sb1:  sm('1#', 'WR', 'UP'),          sb2: sm('2#', 'WR', 'UP')
+        },
+        {
+          label: '下工作辊直径(mm)', group: 'wr', rollType: 'WR', position: 'DOWN',
+          cur1: cv(c1.lowerWrDia, c1.lowerWrNo), cur2: cv(c2.lowerWrDia, c2.lowerWrNo),
+          sb1:  sv('1#', 'WR', 'DOWN', 'diameter'), sb2: sv('2#', 'WR', 'DOWN', 'diameter')
+        },
+        {
+          label: '下工作辊凸度', group: 'wr', rollType: 'WR', position: 'DOWN',
+          cur1: rv(c1.lowerWrNo, 'crown'), cur2: rv(c2.lowerWrNo, 'crown'),
+          sb1:  sv('1#', 'WR', 'DOWN', 'crown'),    sb2: sv('2#', 'WR', 'DOWN', 'crown')
+        },
+        {
+          label: '下工作辊粗糙度(μm)', group: 'wr', rollType: 'WR', position: 'DOWN',
+          cur1: rv(c1.lowerWrNo, 'roughness'), cur2: rv(c2.lowerWrNo, 'roughness'),
+          sb1:  sv('1#', 'WR', 'DOWN', 'roughness'), sb2: sv('2#', 'WR', 'DOWN', 'roughness')
+        },
+        {
+          label: '下支承辊直径(mm)', group: 'br', rollType: 'BR', position: 'DOWN',
+          cur1: cv(c1.lowerBrDia, c1.lowerBrNo), cur2: cv(c2.lowerBrDia, c2.lowerBrNo),
+          sb1:  sv('1#', 'BR', 'DOWN', 'diameter'), sb2: sv('2#', 'BR', 'DOWN', 'diameter')
+        },
+        {
+          label: '轧线设定(mm)', group: 'pl', rollType: null, position: null,
+          cur1: { val: null, sub: null }, cur2: { val: null, sub: null },
+          sb1:  { val: null, sub: null }, sb2:  { val: null, sub: null }
+        },
+        {
+          label: '轧线位置(mm)', group: 'pl', rollType: null, position: null,
+          cur1: { val: null, sub: null }, cur2: { val: null, sub: null },
+          sb1:  { val: null, sub: null }, sb2:  { val: null, sub: null }
+        },
+        {
+          label: '工作长度(m)', group: 'pl', rollType: null, position: null,
+          cur1: { val: this.workLength['1#'] }, cur2: { val: this.workLength['2#'] },
+          sb1:  { val: null }, sb2: { val: null }
+        }
+      ]
+    }
+  },
+
+  created() {
+    this.loadAll()
+    this.loadRollOptions()
+    this.loadRollInfoMap()
+  },
+
+  mounted() {
+    this.$nextTick(this.syncAsideHeight)
+    window.addEventListener('resize', this.syncAsideHeight)
+  },
+
+  beforeDestroy() {
+    window.removeEventListener('resize', this.syncAsideHeight)
+  },
+
+  methods: {
+    getDefaultChangeForm(standNo) {
+      return {
+        standNo: standNo || undefined,
+        changeType: undefined,
+        changeTime: undefined,
+        operator: undefined,
+        upperWrNo: undefined,
+        upperWrDia: undefined,
+        lowerWrNo: undefined,
+        lowerWrDia: undefined,
+        upperBrNo: undefined,
+        upperBrDia: undefined,
+        lowerBrNo: undefined,
+        lowerBrDia: undefined,
+        remark: undefined
+      }
+    },
+    getDefaultStandbyForm(standNo, rollType, position) {
+      return {
+        standNo: standNo || undefined,
+        rollType: rollType || undefined,
+        position: position || undefined,
+        rollNo: undefined,
+        readyTime: undefined,
+        remark: undefined
+      }
+    },
+    loadAll() {
+      ;['1#', '2#'].forEach(s => {
+        this.loadCurrent(s)
+        this.loadStandby(s)
+        this.loadWorkLength(s)
+      })
+      this.loadHistory()
+      this.loadOfflineRolls()
+    },
+
+    loadWorkLength(standNo) {
+      getWorkLength(standNo).then(res => {
+        this.$set(this.workLength, standNo, res.data != null ? res.data : null)
+      }).catch(() => {})
+    },
+
+    loadCurrent(standNo) {
+      this.$set(this.loadingCurrent, standNo, true)
+      getCurrentRolls(standNo).then(res => {
+        this.$set(this.current, standNo, res.data || {})
+        this.$set(this.loadingCurrent, standNo, false)
+        this.$nextTick(this.syncAsideHeight)
+      }).catch(() => { this.$set(this.loadingCurrent, standNo, false) })
+    },
+
+    loadStandby(standNo) {
+      this.$set(this.loadingStandby, standNo, true)
+      listRollStandby(standNo).then(res => {
+        this.$set(this.standbyList, standNo, res.data || [])
+        this.$set(this.loadingStandby, standNo, false)
+      }).catch(() => { this.$set(this.loadingStandby, standNo, false) })
+    },
+
+    loadHistory() {
+      this.historyLoading = true
+      listRollChange(this.historyQuery).then(res => {
+        this.historyList = res.rows || []
+        this.historyTotal = res.total || 0
+        this.historyLoading = false
+      }).catch(() => { this.historyLoading = false })
+    },
+
+    loadRollOptions() {
+      // 下批辊选择只显示离线（Offline）状态的轧辊
+      listRollOptions('WR', 'Offline').then(res => { this.wrOptions = res.data || [] })
+      listRollOptions('BR', 'Offline').then(res => { this.brOptions = res.data || [] })
+    },
+
+    loadRollInfoMap() {
+      listRollInfo({ pageNum: 1, pageSize: 500 }).then(res => {
+        const map = {}
+        ;(res.rows || []).forEach(r => { map[r.rollNo] = r })
+        this.rollInfoMap = map
+      })
+    },
+
+    rowClass({ row }) {
+      if (row.group === 'br') return 'row-br'
+      if (row.group === 'pl') return 'row-pl'
+      return ''
+    },
+
+    // el-table span-method：参数列不需要 span，其余无特殊合并
+    mergeParamCol({ columnIndex }) {
+      if (columnIndex === 0) return [1, 1]
+    },
+
+    // 换辊：自动从下批辊填入辊号和径值
+    handleOpenChange(standNo) {
+      const list = this.standbyList[standNo] || []
+      const ri = this.rollInfoMap
+
+      const pick = (rollType, pos) => {
+        const item = list.find(i => i.rollType === rollType && i.position === pos)
+        if (!item) return { no: undefined, dia: undefined }
+        const info = ri[item.rollNo]
+        const dia = item.diameter != null ? item.diameter
+          : (info ? (info.currentDia != null ? info.currentDia : info.initialDia) : undefined)
+        return { no: item.rollNo, dia }
+      }
+
+      const uwr = pick('WR', 'UP')
+      const lwr = pick('WR', 'DOWN')
+      const ubr = pick('BR', 'UP')
+      const lbr = pick('BR', 'DOWN')
+
+      this.changeForm = {
+        ...this.getDefaultChangeForm(standNo),
+        upperWrNo: uwr.no, upperWrDia: uwr.dia,
+        lowerWrNo: lwr.no, lowerWrDia: lwr.dia,
+        upperBrNo: ubr.no, upperBrDia: ubr.dia,
+        lowerBrNo: lbr.no, lowerBrDia: lbr.dia
+      }
+      this.changeOpen = true
+    },
+    submitChange() {
+      if (this.changeSubmitting) return
+      this.changeSubmitting = true
+      const standNo = this.changeForm.standNo
+      addRollChange(this.changeForm).then(() => {
+        this.$modal.msgSuccess('换辊成功')
+        this.changeOpen = false
+        clearRollStandby(standNo).finally(() => {
+          this.loadCurrent(standNo)
+          this.loadStandby(standNo)
+          this.loadWorkLength(standNo)
+          this.loadHistory()
+          this.loadOfflineRolls()
+        })
+      }).finally(() => {
+        this.changeSubmitting = false
+      })
+    },
+    resetChangeForm() {
+      this.changeForm = this.getDefaultChangeForm()
+      this.changeSubmitting = false
+    },
+
+    // 下批轧辊 — 单元格点击（空→新增，有数据→删除）
+    handleSbCellClick(cell, standNo, rollType, position) {
+      if (cell && cell.standbyId) {
+        this.handleDelStandby(cell.standbyId, standNo)
+      } else if (rollType) {
+        this.standbyForm = this.getDefaultStandbyForm(standNo, rollType, position)
+        this.standbyFromCell = true
+        this.standbyOpen = true
+      }
+    },
+
+    // 下批轧辊 — 顶部"添加下批"按钮（不预设辊型辊位）
+    handleAddStandby(standNo) {
+      this.standbyForm = this.getDefaultStandbyForm(standNo)
+      this.standbyFromCell = false
+      this.standbyOpen = true
+    },
+    handleStandbyRollTypeChange() {
+      this.$set(this.standbyForm, 'rollNo', undefined)
+    },
+    submitStandby() {
+      this.$refs.standbyForm.validate(valid => {
+        if (!valid) return
+        addRollStandby(this.standbyForm).then(() => {
+          this.$modal.msgSuccess('已添加到下批轧辊')
+          this.standbyOpen = false
+          this.loadStandby(this.standbyForm.standNo)
+          this.loadRollOptions()    // 刷新离线辊下拉（已变为 Standby 的辊不再显示）
+          this.loadOfflineRolls()   // 刷新可用辊面板
+        })
+      })
+    },
+    resetStandbyForm() {
+      this.standbyForm = this.getDefaultStandbyForm()
+      this.standbyFromCell = false
+      this.$nextTick(() => { this.$refs.standbyForm && this.$refs.standbyForm.clearValidate() })
+    },
+    handleDelStandby(standbyId, standNo) {
+      this.$modal.confirm('确认移除该下批轧辊？移除后该辊状态将恢复为"离线"。').then(() => {
+        return delRollStandby(standbyId)
+      }).then(() => {
+        this.$modal.msgSuccess('已移除')
+        this.loadStandby(standNo)
+        this.loadRollOptions()
+        this.loadOfflineRolls()
+      })
+    },
+    handleClearStandby(standNo) {
+      this.$modal.confirm('确认清空 ' + standNo + ' 机架的全部下批轧辊？').then(() => {
+        return clearRollStandby(standNo)
+      }).then(() => {
+        this.$modal.msgSuccess('已清空')
+        this.loadStandby(standNo)
+      })
+    },
+
+    // ── 换辊历史 补录 / 删除 ──────────────────────────────────
+    handleEditHistory(row) {
+      this.historyEditForm = { ...row }
+      this.historyEditOpen = true
+    },
+    submitHistoryEdit() {
+      updateRollChange(this.historyEditForm).then(() => {
+        this.$modal.msgSuccess('保存成功')
+        this.historyEditOpen = false
+        this.loadHistory()
+      })
+    },
+    handleDeleteHistory(row) {
+      this.$modal.confirm('确认删除该换辊记录？此操作不可恢复。').then(() => {
+        return delRollChange(row.changeId)
+      }).then(() => {
+        this.$modal.msgSuccess('已删除')
+        this.loadHistory()
+      })
+    },
+
+    // ── 可用离线辊列表 ────────────────────────────────────────
+    loadOfflineRolls() {
+      this.offlineLoading = true
+      listRollInfo({ status: 'Offline', pageNum: 1, pageSize: 30 }).then(res => {
+        this.offlineRolls = res.rows || []
+      }).finally(() => {
+        this.offlineLoading = false
+      })
+    },
+
+    // 让右侧表格高度 = 左侧卡片 body 区域高度
+    syncAsideHeight() {
+      const el = this.$refs.mainTable && this.$refs.mainTable.$el
+      if (!el) return
+      // el-table 的 $el 就是 .el-table 根节点，取其实际渲染高度
+      const h = el.offsetHeight
+      if (h > 0) this.asideTableHeight = h
+    }
+  }
+}
+</script>
+
+<style scoped>
+.working-roll-page { background: #f4f5f7; }
+.roll-table-card   { border: 1px solid #dcdee0; border-radius: 4px; }
+
+/* 顶部两栏布局 */
+.top-row {
+  display: flex;
+  gap: 12px;
+  align-items: stretch;
+}
+.top-row__main  { flex: 2; min-width: 0; }
+.top-row__aside { flex: 1; min-width: 0; }
+
+.card-header  { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
+.card-title   { font-size: 13px; font-weight: 600; color: #3d4b5c; white-space: nowrap; }
+.header-meta  { font-size: 11px; color: #8f9099; white-space: nowrap; }
+
+/* 参数列文字 */
+.param-label { font-size: 12px; color: #3d4b5c; }
+
+/* 数值单元格 */
+.cell-main  { font-family: 'Consolas', 'Courier New', monospace; font-size: 13px; font-weight: 600; color: #1f2329; }
+.cell-empty { color: #c0c4cc; font-size: 12px; }
+
+/* 换辊预览卡片 */
+.roll-preview { background: #f7f8fa; border: 1px solid #e4e6eb; border-radius: 4px; padding: 10px 12px; }
+.roll-preview__title { font-size: 11px; color: #8f9099; margin-bottom: 8px; letter-spacing: .5px; }
+.roll-preview__item  { display: flex; align-items: center; gap: 6px; padding: 4px 0; }
+.rp-label { font-size: 12px; color: #8f9099; width: 56px; flex-shrink: 0; }
+.rp-val   { font-size: 13px; font-weight: 600; color: #1f2329; font-family: 'Consolas', monospace; flex: 1; }
+.rp-dia   { font-size: 11px; color: #9aa0a6; }
+.roll-preview__tip { font-size: 11px; color: #b0b3bb; margin-top: 10px; text-align: center; }
+
+/* 下批辊单元格容器：填满整个 td，有数据时点击删除 */
+.sb-cell {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  height: 100%;
+  min-height: 36px;
+}
+/* 有数据 → 点击删除，hover 浅红 */
+.sb-cell--del {
+  cursor: pointer;
+}
+.sb-cell--del:hover {
+  background: rgba(198, 40, 40, 0.07);
+}
+/* 空格子 → 点击新增，hover 浅绿 */
+.sb-cell--add {
+  cursor: pointer;
+}
+.sb-cell--add:hover {
+  background: rgba(35, 134, 54, 0.07);
+}
+</style>
+
+<style>
+/* 行分组色（scoped 无法穿透 el-table 内部） */
+.working-roll-page .el-table .row-br > td { background-color: #f7f7f6 !important; }
+.working-roll-page .el-table .row-pl > td { background-color: #eef2f8 !important; }
+
+/* 列分组标题加粗区分 */
+.working-roll-page .el-table__header th.el-table__cell {
+  background: #f0f2f5;
+  color: #3d4b5c;
+  font-weight: 600;
+  font-size: 12px;
+}
+</style>