优化若干性能问题

2026-09-22 15:15:22 +08:00
parent afb8161648
commit 43e184bffb
118 changed files with 5518 additions and 6372 deletions
@@ -0,0 +1,315 @@
+#include "mappingtablepage.h"
+#include "utils/Constants.h"
+#include "src/utils/logmanager.h"
+#include "src/utils/custjsonio.h"
+
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QHeaderView>
+#include <QMessageBox>
+#include <QFile>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QJsonParseError>
+#include <QStandardItem>
+#include <QLabel>
+#include <algorithm>
+#include "ElaPushButton.h"
+#include "ElaLineEdit.h"
+#include "ElaTableView.h"
+#include "ElaTheme.h"
+
+// 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:
+// 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;
+// 数据结构与校验差异由子类通过 populateModel/collectMappingData/onAddRow 实现
+MappingTablePage::MappingTablePage(int columnCount,
+                                   const QStringList &headers,
+                                   const QString &searchPlaceholder,
+                                   const QString &tipText,
+                                   QWidget *parent)
+    : QWidget(parent)
+    , m_isLoading(false)
+    , m_dirty(false)
+{
+    initUI(columnCount, headers, searchPlaceholder, tipText);
+}
+
+MappingTablePage::~MappingTablePage()
+{
+}
+
+void MappingTablePage::initUI(int columnCount, const QStringList &headers,
+                              const QString &searchPlaceholder, const QString &tipText)
+{
+    QVBoxLayout *mainLayout = new QVBoxLayout(this);
+    mainLayout->setContentsMargins(20, 20, 20, 20);
+    mainLayout->setSpacing(10);
+
+    // 搜索框
+    QHBoxLayout *searchLayout = new QHBoxLayout;
+    m_searchEdit = new ElaLineEdit(this);
+    m_searchEdit->setPlaceholderText(searchPlaceholder);
+    m_searchEdit->setClearButtonEnabled(true);
+    connect(m_searchEdit, &ElaLineEdit::textChanged,
+            this, &MappingTablePage::onSearchTextChanged);
+    searchLayout->addWidget(m_searchEdit);
+    mainLayout->addLayout(searchLayout);
+
+    m_model = new QStandardItemModel(this);
+    m_model->setColumnCount(columnCount);
+    m_model->setHorizontalHeaderLabels(headers);
+    connect(m_model, &QStandardItemModel::itemChanged,
+            this, &MappingTablePage::onModelItemChanged);
+
+    m_proxyModel = new MappingFilterProxyModel(columnCount, this);
+    m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
+    m_proxyModel->setSourceModel(m_model);
+
+    m_tableView = new ElaTableView;
+    m_tableView->setModel(m_proxyModel);
+    m_tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
+    m_tableView->setSelectionMode(QAbstractItemView::ExtendedSelection);
+    m_tableView->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::EditKeyPressed);
+    m_tableView->verticalHeader()->setVisible(false);
+    for (int c = 0; c < columnCount; ++c)
+        m_tableView->horizontalHeader()->setSectionResizeMode(c, QHeaderView::Stretch);
+    mainLayout->addWidget(m_tableView);
+
+    QHBoxLayout *btnLayout = new QHBoxLayout;
+    ElaPushButton *addBtn = new ElaPushButton("添加", this);
+    ElaPushButton *delBtn = new ElaPushButton("删除选中", this);
+    ElaPushButton *saveBtn = new ElaPushButton("保存", this);
+
+    // 虚函数经 this 指针调用, 运行时正确分派到子类实现
+    connect(addBtn, &ElaPushButton::clicked, this, &MappingTablePage::onAddRow);
+    connect(delBtn, &ElaPushButton::clicked, this, &MappingTablePage::onDeleteRow);
+    connect(saveBtn, &ElaPushButton::clicked, this, &MappingTablePage::onSave);
+
+    btnLayout->addWidget(addBtn);
+    btnLayout->addWidget(delBtn);
+    btnLayout->addStretch();
+    btnLayout->addWidget(saveBtn);
+    mainLayout->addLayout(btnLayout);
+
+    QHBoxLayout *tipLayout = new QHBoxLayout;
+    m_tipLabel = new QLabel(tipText);
+    tipLayout->addWidget(m_tipLabel);
+    tipLayout->addStretch();
+    mainLayout->addLayout(tipLayout);
+
+    // 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
+    m_monitor = new JsonFileMonitor(this);
+    connect(m_monitor, &JsonFileMonitor::reloadRequested,
+            this, &MappingTablePage::onReloadRequested);
+
+    // tip 标签为主题感知: 跟随 Ela 主题切换, 并按当前主题初始化
+    connect(ElaTheme::getInstance(), &ElaTheme::themeModeChanged,
+            this, &MappingTablePage::updateTipStyle);
+    updateTipStyle();
+}
+
+// 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,
+// 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
+void MappingTablePage::load()
+{
+    m_isLoading = true;
+
+    bool readOk = false;
+    QJsonObject custJson = readCustJson(&readOk).object();
+    if (readOk) {
+        // 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,
+        // 基类统一加抑制子页同时受益(populateModel 为虚函数)
+        m_tableView->setUpdatesEnabled(false);
+        m_model->removeRows(0, m_model->rowCount());
+    }
+
+    if (readOk) {
+        populateModel(custJson);
+        m_tableView->setUpdatesEnabled(true);
+    }
+
+    m_isLoading = false;
+    // 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),
+    // 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
+    if (readOk) {
+        m_dirty = false;
+    }
+
+    // 设置监控并记录 mtime 基准, 供防抖回调过滤自身写入回环
+    m_monitor->watch(getCustJsonPath());
+}
+
+QString MappingTablePage::getCustJsonPath() const
+{
+    return Constants::custJson();
+}
+
+QJsonDocument MappingTablePage::readCustJson(bool *ok)
+{
+    if (ok) *ok = false;
+    const QString jsonPath = getCustJsonPath();
+    QFile file(jsonPath);
+    if (!file.open(QIODevice::ReadOnly)) {
+        LogManager::instance()->logError("无法读取 cust.json: " + jsonPath);
+        return QJsonDocument();
+    }
+    const QByteArray data = file.readAll();
+    file.close();
+    QJsonParseError error;
+    QJsonDocument doc = QJsonDocument::fromJson(data, &error);
+    if (error.error != QJsonParseError::NoError) {
+        LogManager::instance()->logError(
+            QString("cust.json 解析失败: %1 (行 %2)").arg(error.errorString()).arg(error.offset));
+        return QJsonDocument();
+    }
+    if (ok) *ok = true;
+    return doc;
+}
+
+void MappingTablePage::onDeleteRow()
+{
+    QModelIndexList selectedRows = m_tableView->selectionModel()->selectedRows();
+    if (selectedRows.isEmpty()) {
+        QMessageBox::warning(this, "提示", "请先选中要删除的行！");
+        return;
+    }
+
+    QStringList keyNames;
+    QList<int> sourceRows;
+    for (const QModelIndex &idx : selectedRows) {
+        QModelIndex srcIdx = m_proxyModel->mapToSource(idx);
+        QStandardItem *keyItem = m_model->item(srcIdx.row(), 0);
+        if (keyItem) keyNames.append(keyItem->text());
+        sourceRows.append(srcIdx.row());
+    }
+
+    // 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,
+    // 退化为按数量确认, 避免 QList::first() 对空列表断言崩溃
+    const QString confirmMsg = (selectedRows.size() == 1 && !keyNames.isEmpty())
+        ? deleteConfirmSingle(keyNames.first())
+        : deleteConfirmMulti(selectedRows.size());
+
+    QMessageBox::StandardButton reply = QMessageBox::question(this, "确认删除",
+        confirmMsg, QMessageBox::Yes | QMessageBox::No);
+    if (reply != QMessageBox::Yes) return;
+
+    // 从高行号到低行号删除，避免索引偏移问题
+    std::sort(sourceRows.begin(), sourceRows.end(), std::greater<int>());
+    for (int row : sourceRows) {
+        m_model->removeRow(row);
+    }
+    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
+}
+
+void MappingTablePage::onModelItemChanged(QStandardItem *item)
+{
+    if (m_isLoading) return;
+    m_dirty = true;   // 用户编辑了映射表，标记有未保存修改
+    Q_UNUSED(item);
+}
+
+void MappingTablePage::onSave()
+{
+    // 开启保存窗口: 窗口期内监控事件直接忽略
+    m_monitor->beginSaveWindow();
+
+    // 读取原始文件内容以保留顶层 key 顺序
+    const QString jsonPath = getCustJsonPath();
+    QFile file(jsonPath);
+    if (!file.open(QIODevice::ReadOnly)) {
+        m_monitor->endSave();   // 早退必须关闭窗口，否则监控被永久抑制
+        QMessageBox::critical(this, "错误", "无法读取 cust.json！");
+        return;
+    }
+    const QString rawJson = QString::fromUtf8(file.readAll());
+    file.close();
+
+    QJsonParseError error;
+    QJsonDocument doc = QJsonDocument::fromJson(rawJson.toUtf8(), &error);
+    if (error.error != QJsonParseError::NoError) {
+        m_monitor->endSave();
+        QMessageBox::critical(this, "错误", "cust.json 解析失败: " + error.errorString());
+        return;
+    }
+    QJsonObject custJson = doc.object();
+
+    // 提取原始 key 顺序
+    const QStringList keyOrder = CustJsonIo::extractTopLevelKeyOrder(rawJson);
+
+    // 子类校验并回填数据: 校验失败置 errorMessage, 弹警告不落盘
+    QString errorMessage;
+    const QHash<QString, QString> overrideRaw = collectMappingData(custJson, errorMessage);
+    if (!errorMessage.isEmpty()) {
+        m_monitor->endSave();
+        QMessageBox::warning(this, "提示", errorMessage);
+        return;
+    }
+
+    // endSave 以保存后的新 mtime 为基准(writeCustJsonOrdered 同步写完才返回),
+    // 成功/失败都要关闭窗口, 且必须先于模态弹窗:
+    // 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
+    // 当作自身保存基准, 导致外部变更被静默吞掉
+    const bool writeOk = CustJsonIo::writeCustJsonOrdered(jsonPath, custJson, keyOrder, overrideRaw);
+    m_monitor->endSave();
+    if (writeOk) {
+        m_dirty = false;   // 保存成功后与磁盘内容一致
+        LogManager::instance()->logInfo(saveLogText(m_model->rowCount()));
+        QMessageBox::information(this, "提示", "保存成功！");
+    } else {
+        QMessageBox::critical(this, "错误", "保存到 cust.json 失败！");
+    }
+}
+
+void MappingTablePage::onReloadRequested()
+{
+    // 有未保存编辑时询问，避免外部修改静默覆盖用户的编辑
+    if (m_dirty) {
+        QMessageBox::StandardButton reply = QMessageBox::question(this, "文件已变更",
+            "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？",
+            QMessageBox::Yes | QMessageBox::No);
+        if (reply != QMessageBox::Yes) {
+            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
+        }
+    }
+
+    LogManager::instance()->logInfo(reloadLogText());
+    load();
+}
+
+void MappingTablePage::onSearchTextChanged(const QString &text)
+{
+    // setFilterFixedString 自动转义正则元字符, 按不区分大小写的包含匹配
+    m_proxyModel->setFilterFixedString(text);
+}
+
+void MappingTablePage::updateTipStyle()
+{
+    if (!m_tipLabel) return;
+    const ElaThemeType::ThemeMode mode = ElaTheme::getInstance()->getThemeMode();
+    const QString textColor = ElaThemeColor(mode, BasicText).name();
+    m_tipLabel->setStyleSheet(QString("color: %1; font-size: 13px;").arg(textColor));
+}
+
+// ---------------------------------------------------------------------------
+// 默认文案虚点实现（子类按需覆写）
+// ---------------------------------------------------------------------------
+QString MappingTablePage::saveLogText(int rowCount) const
+{
+    Q_UNUSED(rowCount);
+    return "配置已保存到 cust.json";
+}
+
+QString MappingTablePage::reloadLogText() const
+{
+    return "检测到 cust.json 外部修改，自动刷新数据";
+}
+
+QString MappingTablePage::deleteConfirmSingle(const QString &name) const
+{
+    return QString("确定要删除 \"%1\" 这条映射吗？").arg(name);
+}
+
+QString MappingTablePage::deleteConfirmMulti(int count) const
+{
+    return QString("确定要删除选中的 %1 条映射吗？").arg(count);
+}