336 lines
12 KiB
C++
336 lines
12 KiB
C++
#include "mappingtablepage.h"
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#include "utils/Constants.h"
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#include "src/utils/logmanager.h"
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#include "src/utils/custjsonio.h"
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QHeaderView>
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#include <QMessageBox>
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#include <QFile>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonParseError>
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#include <QStandardItem>
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#include <QLabel>
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#include <algorithm>
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#include "ElaPushButton.h"
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#include "ElaLineEdit.h"
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#include "ElaTableView.h"
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#include "ElaTheme.h"
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// 数据映射三页（表替换/函数替换/不转码功能函数）的公共基类:
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// 收编 UI 骨架/删除/编辑置脏/保存保序写/外部修改重载/主题联动等同构样板;
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// 数据结构与校验差异由子类通过 populateModel/collectMappingData/onAddRow 实现
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MappingTablePage::MappingTablePage(int columnCount,
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const QStringList &headers,
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const QString &searchPlaceholder,
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const QString &tipText,
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QWidget *parent)
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: QWidget(parent)
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, m_isLoading(false)
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, m_dirty(false)
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{
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initUI(columnCount, headers, searchPlaceholder, tipText);
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}
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MappingTablePage::~MappingTablePage()
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{
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}
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void MappingTablePage::initUI(int columnCount, const QStringList &headers,
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const QString &searchPlaceholder, const QString &tipText)
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{
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QVBoxLayout *mainLayout = new QVBoxLayout(this);
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mainLayout->setContentsMargins(20, 20, 20, 20);
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mainLayout->setSpacing(10);
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// 搜索框
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QHBoxLayout *searchLayout = new QHBoxLayout;
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m_searchEdit = new ElaLineEdit(this);
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m_searchEdit->setPlaceholderText(searchPlaceholder);
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m_searchEdit->setClearButtonEnabled(true);
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connect(m_searchEdit, &ElaLineEdit::textChanged,
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this, &MappingTablePage::onSearchTextChanged);
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searchLayout->addWidget(m_searchEdit);
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mainLayout->addLayout(searchLayout);
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m_model = new QStandardItemModel(this);
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m_model->setColumnCount(columnCount);
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m_model->setHorizontalHeaderLabels(headers);
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connect(m_model, &QStandardItemModel::itemChanged,
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this, &MappingTablePage::onModelItemChanged);
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m_proxyModel = new MappingFilterProxyModel(columnCount, this);
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m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
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m_proxyModel->setSourceModel(m_model);
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m_tableView = new ElaTableView;
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m_tableView->setModel(m_proxyModel);
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m_tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
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m_tableView->setSelectionMode(QAbstractItemView::ExtendedSelection);
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m_tableView->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::EditKeyPressed);
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m_tableView->verticalHeader()->setVisible(false);
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for (int c = 0; c < columnCount; ++c)
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m_tableView->horizontalHeader()->setSectionResizeMode(c, QHeaderView::Stretch);
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mainLayout->addWidget(m_tableView);
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QHBoxLayout *btnLayout = new QHBoxLayout;
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ElaPushButton *addBtn = new ElaPushButton("添加", this);
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ElaPushButton *delBtn = new ElaPushButton("删除选中", this);
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ElaPushButton *saveBtn = new ElaPushButton("保存", this);
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// 虚函数经 this 指针调用, 运行时正确分派到子类实现
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connect(addBtn, &ElaPushButton::clicked, this, &MappingTablePage::onAddRow);
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connect(delBtn, &ElaPushButton::clicked, this, &MappingTablePage::onDeleteRow);
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connect(saveBtn, &ElaPushButton::clicked, this, &MappingTablePage::onSave);
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btnLayout->addWidget(addBtn);
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btnLayout->addWidget(delBtn);
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btnLayout->addStretch();
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btnLayout->addWidget(saveBtn);
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mainLayout->addLayout(btnLayout);
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QHBoxLayout *tipLayout = new QHBoxLayout;
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m_tipLabel = new QLabel(tipText);
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tipLayout->addWidget(m_tipLabel);
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tipLayout->addStretch();
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mainLayout->addLayout(tipLayout);
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// 外部修改监控: 双监控+防抖+mtime 回环过滤+保存窗口统一由 JsonFileMonitor 处理
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m_monitor = new JsonFileMonitor(this);
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connect(m_monitor, &JsonFileMonitor::reloadRequested,
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this, &MappingTablePage::onReloadRequested);
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// tip 标签为主题感知: 跟随 Ela 主题切换, 并按当前主题初始化
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connect(ElaTheme::getInstance(), &ElaTheme::themeModeChanged,
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this, &MappingTablePage::updateTipStyle);
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updateTipStyle();
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}
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// 由子类构造体内调用(规避构造期虚函数绑定到基类版本): 先读后清空,
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// 读取/解析失败时保留现有模型内容并不清脏, 避免用户随手保存把空表写回磁盘
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void MappingTablePage::load()
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{
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m_isLoading = true;
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bool readOk = false;
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QJsonObject custJson = readCustJson(&readOk).object();
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if (readOk) {
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// 批量重建期间抑制逐行重绘: 映射表可达数百~上千行, 三个子页共用此路径,
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// 基类统一加抑制子页同时受益(populateModel 为虚函数)
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m_tableView->setUpdatesEnabled(false);
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m_model->removeRows(0, m_model->rowCount());
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}
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if (readOk) {
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populateModel(custJson);
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m_tableView->setUpdatesEnabled(true);
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}
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m_isLoading = false;
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// 仅读取/解析成功时清脏: 失败时模型保留了旧内容(可能含未保存编辑),
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// 清脏会让外部变更保护失效, 且"保存"会把旧表写回损坏的文件
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if (readOk) {
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m_dirty = false;
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}
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// 设置监控并记录 mtime 基准, 供防抖回调过滤自身写入回环
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m_monitor->watch(getCustJsonPath());
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}
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QString MappingTablePage::getCustJsonPath() const
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{
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return Constants::custJson();
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}
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QJsonDocument MappingTablePage::readCustJson(bool *ok)
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{
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if (ok) *ok = false;
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const QString jsonPath = getCustJsonPath();
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QFile file(jsonPath);
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if (!file.open(QIODevice::ReadOnly)) {
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LogManager::instance()->logError("无法读取 cust.json: " + jsonPath);
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return QJsonDocument();
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}
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const QByteArray data = file.readAll();
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file.close();
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QJsonParseError error;
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QJsonDocument doc = QJsonDocument::fromJson(data, &error);
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if (error.error != QJsonParseError::NoError) {
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LogManager::instance()->logError(
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QString("cust.json 解析失败: %1 (行 %2)").arg(error.errorString()).arg(error.offset));
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return QJsonDocument();
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}
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if (ok) *ok = true;
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return doc;
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}
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void MappingTablePage::onDeleteRow()
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{
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QModelIndexList selectedRows = m_tableView->selectionModel()->selectedRows();
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if (selectedRows.isEmpty()) {
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QMessageBox::warning(this, "提示", "请先选中要删除的行！");
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return;
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}
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QStringList keyNames;
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QList<int> sourceRows;
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for (const QModelIndex &idx : selectedRows) {
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QModelIndex srcIdx = m_proxyModel->mapToSource(idx);
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QStandardItem *keyItem = m_model->item(srcIdx.row(), 0);
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if (keyItem) keyNames.append(keyItem->text());
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sourceRows.append(srcIdx.row());
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}
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// 单选但键名 item 缺失(空单元格/排序中列被隐藏)时 keyNames 可能为空,
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// 退化为按数量确认, 避免 QList::first() 对空列表断言崩溃
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const QString confirmMsg = (selectedRows.size() == 1 && !keyNames.isEmpty())
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? deleteConfirmSingle(keyNames.first())
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: deleteConfirmMulti(selectedRows.size());
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QMessageBox::StandardButton reply = QMessageBox::question(this, "确认删除",
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confirmMsg, QMessageBox::Yes | QMessageBox::No);
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if (reply != QMessageBox::Yes) return;
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// 从高行号到低行号删除，避免索引偏移问题
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std::sort(sourceRows.begin(), sourceRows.end(), std::greater<int>());
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for (int row : sourceRows) {
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m_model->removeRow(row);
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}
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m_dirty = true; // 删除行同样视为未保存修改，纳入外部文件变更保护
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}
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void MappingTablePage::onModelItemChanged(QStandardItem *item)
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{
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if (m_isLoading) return;
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m_dirty = true; // 用户编辑了映射表，标记有未保存修改
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Q_UNUSED(item);
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}
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void MappingTablePage::onSave()
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{
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QString errorMessage;
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const SaveResult result = saveToDisk(&errorMessage);
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if (result == SaveResult::Ok) {
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QMessageBox::information(this, "提示", "保存成功！");
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} else if (result == SaveResult::ValidationFailed) {
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QMessageBox::warning(this, "提示", errorMessage);
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} else {
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QMessageBox::critical(this, "错误", errorMessage);
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}
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}
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MappingTablePage::SaveResult MappingTablePage::saveToDisk(QString *errorMessage)
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{
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if (errorMessage) errorMessage->clear();
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// 开启保存窗口: 窗口期内监控事件直接忽略
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m_monitor->beginSaveWindow();
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// 读取原始文件内容以保留顶层 key 顺序
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const QString jsonPath = getCustJsonPath();
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QFile file(jsonPath);
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if (!file.open(QIODevice::ReadOnly)) {
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m_monitor->endSave(); // 早退必须关闭窗口，否则监控被永久抑制
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if (errorMessage) *errorMessage = "无法读取 cust.json！";
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return SaveResult::Error;
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}
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const QString rawJson = QString::fromUtf8(file.readAll());
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file.close();
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QJsonParseError error;
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QJsonDocument doc = QJsonDocument::fromJson(rawJson.toUtf8(), &error);
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if (error.error != QJsonParseError::NoError) {
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m_monitor->endSave();
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if (errorMessage) *errorMessage = "cust.json 解析失败: " + error.errorString();
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return SaveResult::Error;
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}
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QJsonObject custJson = doc.object();
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// 提取原始 key 顺序
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const QStringList keyOrder = CustJsonIo::extractTopLevelKeyOrder(rawJson);
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// 子类校验并回填数据: 校验失败不落盘
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QString validateError;
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const QHash<QString, QString> overrideRaw = collectMappingData(custJson, validateError);
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if (!validateError.isEmpty()) {
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m_monitor->endSave();
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if (errorMessage) *errorMessage = validateError;
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return SaveResult::ValidationFailed;
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}
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// endSave 以保存后的新 mtime 为基准(writeCustJsonOrdered 同步写完才返回),
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// 成功/失败都要关闭窗口, 且必须先于模态弹窗:
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// 弹窗阻塞期间若发生外部修改, 迟到的 endSave 会把外部修改的 mtime
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// 当作自身保存基准, 导致外部变更被静默吞掉
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const bool writeOk = CustJsonIo::writeCustJsonOrdered(jsonPath, custJson, keyOrder, overrideRaw);
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m_monitor->endSave();
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if (writeOk) {
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m_dirty = false; // 保存成功后与磁盘内容一致
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LogManager::instance()->logInfo(saveLogText(m_model->rowCount()));
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onSavedToDisk(); // 落盘成功钩子(表替换页覆写: 同步 table_mapping.json)
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return SaveResult::Ok;
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}
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if (errorMessage) *errorMessage = "保存到 cust.json 失败！";
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return SaveResult::Error;
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}
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void MappingTablePage::onSavedToDisk()
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{
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}
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void MappingTablePage::onReloadRequested()
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{
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// 有未保存编辑时询问，避免外部修改静默覆盖用户的编辑
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if (m_dirty) {
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QMessageBox::StandardButton reply = QMessageBox::question(this, "文件已变更",
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"cust.json 已被其他页面或外部程序修改，重新加载将丢失当前未保存的编辑。是否重新加载？",
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QMessageBox::Yes | QMessageBox::No);
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if (reply != QMessageBox::Yes) {
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return; // 监控组件已记住本次版本，避免同一份内容反复弹窗询问
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}
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}
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LogManager::instance()->logInfo(reloadLogText());
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load();
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}
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void MappingTablePage::onSearchTextChanged(const QString &text)
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{
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// setFilterFixedString 自动转义正则元字符, 按不区分大小写的包含匹配
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m_proxyModel->setFilterFixedString(text);
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}
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void MappingTablePage::updateTipStyle()
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{
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if (!m_tipLabel) return;
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const ElaThemeType::ThemeMode mode = ElaTheme::getInstance()->getThemeMode();
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const QString textColor = ElaThemeColor(mode, BasicText).name();
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m_tipLabel->setStyleSheet(QString("color: %1; font-size: 13px;").arg(textColor));
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}
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// ---------------------------------------------------------------------------
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// 默认文案虚点实现（子类按需覆写）
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// ---------------------------------------------------------------------------
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QString MappingTablePage::saveLogText(int rowCount) const
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{
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Q_UNUSED(rowCount);
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return "配置已保存到 cust.json";
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}
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QString MappingTablePage::reloadLogText() const
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{
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return "检测到 cust.json 外部修改，自动刷新数据";
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}
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QString MappingTablePage::deleteConfirmSingle(const QString &name) const
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{
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return QString("确定要删除 \"%1\" 这条映射吗？").arg(name);
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}
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QString MappingTablePage::deleteConfirmMulti(int count) const
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{
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return QString("确定要删除选中的 %1 条映射吗？").arg(count);
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}
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