增加右键新增行功能

mainwindow.cpp

@@ -12,6 +12,7 @@
 #include <QInputDialog>
 #include <QSqlRecord>
 #include <QtDebug>
+#include <QContextMenuEvent>
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
@@ -47,6 +48,14 @@ MainWindow::MainWindow(QWidget *parent)
     QIcon convertIcon = QApplication::style()->standardIcon(QStyle::SP_ArrowRight);
     textToSqliteAction->setIcon(convertIcon);
     sqliteToTextAction->setIcon(convertIcon);
+
+    ui->tableWidget->installEventFilter(this);
+
+    contextMenu = new QMenu(this);
+    QAction* addRowAboveAction = contextMenu->addAction(tr("在上方添加行"));
+    QAction* addRowBelowAction = contextMenu->addAction(tr("在下方添加行"));
+    connect(addRowAboveAction, &QAction::triggered, this, &MainWindow::onAddRowAboveActionTriggered);
+    connect(addRowBelowAction, &QAction::triggered, this, &MainWindow::onAddRowBelowActionTriggered);
 }
 
 
@@ -55,6 +64,78 @@ MainWindow::~MainWindow()
     delete ui;
 }
 
+bool MainWindow::eventFilter(QObject* obj, QEvent* event)
+{
+    if (obj == ui->tableWidget && event->type() == QEvent::ContextMenu)
+    {
+        QContextMenuEvent* contextMenuEvent = static_cast<QContextMenuEvent*>(event);
+        contextMenuEvent->accept();
+        contextMenu->exec(contextMenuEvent->globalPos());
+        return true; // 事件已处理
+    }
+    return QMainWindow::eventFilter(obj, event);
+}
+
+
+void MainWindow::contextMenuEvent(QContextMenuEvent* event)
+{
+    QPoint cellPos = ui->tableWidget->mapFromGlobal(event->globalPos());
+    int currentRow = ui->tableWidget->rowAt(cellPos.y());
+    int currentColumn = ui->tableWidget->columnAt(cellPos.x());
+
+    if (currentRow >= 0 && currentColumn == 0)
+    {
+        contextMenu->exec(event->globalPos());
+    }
+}
+
+void MainWindow::onAddRowAboveActionTriggered()
+{
+    QTableWidget* tableWidget = ui->tableWidget;
+    int currentRow = tableWidget->currentRow();
+    if (currentRow >= 0)
+    {
+        tableWidget->insertRow(currentRow);
+    }
+    else
+    {
+        // 如果没有选中行，在末尾追加一行
+        int newRow = tableWidget->rowCount();
+        tableWidget->insertRow(newRow);
+        currentRow = newRow;
+    }
+
+    // 填充插入的行为空项
+    for (int column = 0; column < tableWidget->columnCount(); ++column)
+    {
+        QTableWidgetItem* emptyItem = new QTableWidgetItem("");
+        tableWidget->setItem(currentRow, column, emptyItem);
+    }
+}
+
+void MainWindow::onAddRowBelowActionTriggered()
+{
+    QTableWidget* tableWidget = ui->tableWidget;
+    int currentRow = tableWidget->currentRow();
+    if (currentRow >= 0)
+    {
+        tableWidget->insertRow(currentRow + 1); // 在下方插入一行
+    }
+    else
+    {
+        // 如果没有选中行，在末尾追加一行
+        int newRow = tableWidget->rowCount();
+        tableWidget->insertRow(newRow);
+    }
+
+    // 填充插入的行为空项
+    for (int column = 0; column < tableWidget->columnCount(); ++column)
+    {
+        QTableWidgetItem* emptyItem = new QTableWidgetItem("");
+        tableWidget->setItem(currentRow + 1, column, emptyItem);
+    }
+}
+
 void MainWindow::showProgressDialog(const QString& labelText, int minimum, int maximum)
 {
     progressDialog = new QProgressDialog(labelText, "Cancel", minimum, maximum, this);
@@ -513,4 +594,3 @@ void MainWindow::convertSqliteToText()
 
     QMessageBox::information(this, tr("Conversion Complete"), tr("SQLite to Text conversion completed successfully."));
 }
-

mainwindow.h

@@ -25,16 +25,21 @@ public:
     void convertTextToSqlite();
     void convertSqliteToText();
     void showProgressDialog(const QString& labelText, int minimum, int maximum);
+    bool eventFilter(QObject* obj, QEvent* event);
+    void contextMenuEvent(QContextMenuEvent* event);
 
 private slots:
     void onOpenButtonClicked();
     void onSaveButtonClicked();
     void onSaveAsButtonClicked();
+    void onAddRowAboveActionTriggered();
+    void onAddRowBelowActionTriggered();
 
 private:
     Ui::MainWindow *ui;
     QProgressDialog* progressDialog;
     QString openFilePath;
+    QMenu* contextMenu; // 右键菜单
 };
 
 #endif // MAINWINDOW_H