增加添加列功能

mainwindow.cpp

@@ -49,11 +49,17 @@ MainWindow::MainWindow(QWidget *parent)
     textToSqliteAction->setIcon(convertIcon);
     sqliteToTextAction->setIcon(convertIcon);
 
-    contextMenu = new QMenu(this);
-    QAction* addRowAboveAction = contextMenu->addAction(tr("向上添加一行"));
-    QAction* addRowBelowAction = contextMenu->addAction(tr("向下添加一行"));
+    firstColMenu = new QMenu(this);
+    QAction* addRowAboveAction = firstColMenu->addAction(tr("↑ 向上添加一行"));
+    QAction* addRowBelowAction = firstColMenu->addAction(tr("向下添加一行 ↓"));
     connect(addRowAboveAction, &QAction::triggered, this, &MainWindow::onAddRowAboveActionTriggered);
     connect(addRowBelowAction, &QAction::triggered, this, &MainWindow::onAddRowBelowActionTriggered);
+
+    firstRowMenu = new QMenu(this);
+    QAction* addColAboveAction = firstRowMenu->addAction(tr("← 向左添加一列"));
+    QAction* addColBelowAction = firstRowMenu->addAction(tr("向右添加一列 →"));
+    connect(addColAboveAction, &QAction::triggered, this, &MainWindow::onAddColAboveActionTriggered);
+    connect(addColBelowAction, &QAction::triggered, this, &MainWindow::onAddColBelowActionTriggered);
 }
 
 
@@ -66,16 +72,21 @@ void MainWindow::contextMenuEvent(QContextMenuEvent* event)
 {
     QPoint cellPos = ui->tableWidget->viewport()->mapFromGlobal(event->globalPos());
     int currentColumn = ui->tableWidget->horizontalHeader()->logicalIndexAt(cellPos.x());
+    int currentRow = ui->tableWidget->rowAt(cellPos.y());
 
-    if (currentColumn == -1)
-    {
-        int currentRow = ui->tableWidget->rowAt(cellPos.y());
+    if (currentColumn == -1 && currentRow == -1) {
+        // 没有选中行也没有选中列，不显示菜单
+        return;
+    }
 
-        if (currentRow >= 0)
-        {
-            ui->tableWidget->selectRow(currentRow); // Select the clicked row
-            contextMenu->popup(event->globalPos());
-        }
+    if (currentColumn == -1 && currentRow >= 0) {
+        // 选中了行，显示行菜单
+        ui->tableWidget->selectRow(currentRow);
+        firstColMenu->popup(event->globalPos());
+    } else if (currentColumn >= 0 && currentRow == -1) {
+        // 选中了列，显示列菜单
+        ui->tableWidget->selectColumn(currentColumn);
+        firstRowMenu->popup(event->globalPos());
     }
 }
 
@@ -94,13 +105,6 @@ void MainWindow::onAddRowAboveActionTriggered()
         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()
@@ -117,12 +121,38 @@ void MainWindow::onAddRowBelowActionTriggered()
         int newRow = tableWidget->rowCount();
         tableWidget->insertRow(newRow);
     }
+}
 
-    // 填充插入的行为空项
-    for (int column = 0; column < tableWidget->columnCount(); ++column)
+void MainWindow::onAddColAboveActionTriggered()
+{
+    QTableWidget* tableWidget = ui->tableWidget;
+    int currentColumn = tableWidget->currentColumn();
+    if (currentColumn >= 0)
     {
-        QTableWidgetItem* emptyItem = new QTableWidgetItem("");
-        tableWidget->setItem(currentRow + 1, column, emptyItem);
+        tableWidget->insertColumn(currentColumn);
+    }
+    else
+    {
+        // 如果没有选中列，在末尾追加一列
+        int newColumn = tableWidget->columnCount();
+        tableWidget->insertColumn(newColumn);
+        currentColumn = newColumn;
+    }
+}
+
+void MainWindow::onAddColBelowActionTriggered()
+{
+    QTableWidget* tableWidget = ui->tableWidget;
+    int currentColumn = tableWidget->currentColumn();
+    if (currentColumn >= 0)
+    {
+        tableWidget->insertColumn(currentColumn + 1); // 在右侧插入一列
+    }
+    else
+    {
+        // 如果没有选中列，在末尾追加一列
+        int newColumn = tableWidget->columnCount();
+        tableWidget->insertColumn(newColumn);
     }
 }
 

mainwindow.h

@@ -33,12 +33,15 @@ private slots:
     void onSaveAsButtonClicked();
     void onAddRowAboveActionTriggered();
     void onAddRowBelowActionTriggered();
+    void onAddColAboveActionTriggered();
+    void onAddColBelowActionTriggered();
 
 private:
     Ui::MainWindow *ui;
     QProgressDialog* progressDialog;
     QString openFilePath;
-    QMenu* contextMenu; // 右键菜单
+    QMenu* firstColMenu; // 右键菜单
+    QMenu* firstRowMenu; // 右键菜单
 };
 
 #endif // MAINWINDOW_H