修改了新建标签页的显示

editor.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.1, 2025-08-12T14:54:10. -->
+<!-- Written by QtCreator 4.11.1, 2025-08-12T22:16:53. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

mainwindow.cpp

@@ -21,8 +21,6 @@ MainWindow::MainWindow(QWidget *parent)
     , modbusManager(new ModbusManager(registerManager, this))
 {
     ui->setupUi(this);
-//    registerManager = new RegisterManager(this);
-//    modbusManager = new ModbusManager(registerManager, this);
     // 初始化PLC标签页
     ui->plc_tab_widget->setTabsClosable(true);
     ui->plc_tab_widget->setMovable(true);
@@ -42,8 +40,8 @@ MainWindow::MainWindow(QWidget *parent)
 
     createComponents();
 
-    connect(ui->plc_tab_widget, &QTabWidget::tabCloseRequested,this,&MainWindow::onTabCloseRequested);
-    connect(ui->hmi_tab_widget, &QTabWidget::tabCloseRequested,this,&MainWindow::onTabCloseRequested);
+    connect(ui->plc_tab_widget, &QTabWidget::tabCloseRequested, this, &MainWindow::onTabCloseRequested);
+    connect(ui->hmi_tab_widget, &QTabWidget::tabCloseRequested, this, &MainWindow::onTabCloseRequested);
     connect(ui->listWidget,&QListWidget::currentTextChanged,this,&MainWindow::onListwidgetCurrenttextchanged);
 
     connect(ui->action_plc,&QAction::triggered,this,&MainWindow::plcChange);
@@ -64,7 +62,7 @@ MainWindow::MainWindow(QWidget *parent)
     //            this, &PLC::handleModbusError);
 
     ui->stackedWidget->setCurrentIndex(0);
-    setWindowTitle("未命名项目 - PLC编辑器");
+    setWindowTitle("PLC编辑器");
 }
 
 MainWindow::~MainWindow()
@@ -90,6 +88,7 @@ void MainWindow::newPage(bool isPlc)
     if (isPlc) {
         // 添加到PLC标签页
         int newIndex = ui->plc_tab_widget->addTab(newView, QString("页面 %1").arg(plcScenes.size() + 1));
+        plcPageTitles.append(""); // 初始化为空字符串
         ui->plc_tab_widget->setCurrentIndex(newIndex);
 
         // 保存场景和视图
@@ -102,6 +101,7 @@ void MainWindow::newPage(bool isPlc)
     } else {
         // 添加到HMI标签页
         int newIndex = ui->hmi_tab_widget->addTab(newView, QString("页面 %1").arg(hmiScenes.size() + 1));
+        hmiPageTitles.append(""); // 初始化为空字符串
         ui->hmi_tab_widget->setCurrentIndex(newIndex);
 
         // 保存场景和视图
@@ -411,7 +411,7 @@ void MainWindow::plcChange()
     currentIsPLC_ = true;
     createComponents();
     ui->stackedWidget->setCurrentIndex(0); // 显示PLC页面
-//    setWindowTitle((plcFilePath_.isEmpty() ? "未命名项目" : QFileInfo(plcFilePath_).fileName()) + " - PLC编辑器");
+    setWindowTitle("PLC编辑器");
 }
 
 
@@ -420,18 +420,30 @@ void MainWindow::hmiChange()
     currentIsPLC_ = false;
     createComponents();
     ui->stackedWidget->setCurrentIndex(1); // 显示HMI页面
-//    setWindowTitle((hmiFilePath_.isEmpty() ? "未命名项目" : QFileInfo(hmiFilePath_).fileName()) + " - HMI编辑器");
+    setWindowTitle("HMI编辑器");
 }
 
 void MainWindow::newProject()
 {
+    // 检查当前tabwidget是否只有一个页面且页面内容为空
+    if (currentIsPLC_ && plcScenes.size() == 1 && plcScenes[0]->items().isEmpty()) {
+        // 复用第一个页面
+        clearScene();
+        setWindowTitle("PLC编辑器");
+        return;
+    }
+    if (!currentIsPLC_ && hmiScenes.size() == 1 && hmiScenes[0]->items().isEmpty()) {
+        clearScene();
+        setWindowTitle("HMI编辑器");
+        return;
+    }
     newPage(currentIsPLC_);
 
     // 更新窗口标题
     if (currentIsPLC_) {
-        setWindowTitle("未命名项目 - PLC编辑器");
+        setWindowTitle("PLC编辑器");
     } else {
-        setWindowTitle("未命名项目 - HMI编辑器");
+        setWindowTitle("HMI编辑器");
     }
 }
 
@@ -452,16 +464,31 @@ void MainWindow::openProject()
 
     Project project;
     if (project.loadFromFile(filePath)) {
-        // 在当前模块新建一个页面
-        newPage(currentIsPLC_);
-        int newPageIndex = currentPageIndex();
+//        // 在当前模块新建一个页面
+//        newPage(currentIsPLC_);
+//        int newPageIndex = currentPageIndex();
+        int newPageIndex = -1;
+        if (currentIsPLC_ && plcScenes.size() == 1 && plcScenes[0]->items().isEmpty()) {
+            newPageIndex = 0;
+        } else if (!currentIsPLC_ && hmiScenes.size() == 1 && hmiScenes[0]->items().isEmpty()) {
+            newPageIndex = 0;
+        } else {
+            newPage(currentIsPLC_);
+            newPageIndex = currentPageIndex();
+        }
 
         // 将项目应用到新页面
         applyProjectToScene(project, newPageIndex);
 
-        // 更新窗口标题
-        setWindowTitle(QFileInfo(filePath).fileName() +
-                      (currentIsPLC_ ? " - PLC编辑器" : " - HMI编辑器"));
+        // 设置标签页标题为文件名
+        QString fileName = QFileInfo(filePath).fileName();
+        if (currentIsPLC_) {
+            plcPageTitles[newPageIndex] = fileName;
+            ui->plc_tab_widget->setTabText(newPageIndex, fileName);
+        } else {
+            hmiPageTitles[newPageIndex] = fileName;
+            ui->hmi_tab_widget->setTabText(newPageIndex, fileName);
+        }
     } else {
         QMessageBox::critical(this, "错误", "无法打开项目文件");
     }
@@ -495,9 +522,17 @@ void MainWindow::saveProject()
     extractSceneToProject(project, currentPageIndex());
 
     if (project.saveToFile(filePath)) {
-        // 更新窗口标题
-        setWindowTitle(QFileInfo(filePath).fileName() +
-                      (currentIsPLC_ ? " - PLC编辑器" : " - HMI编辑器"));
+        // 设置标签页标题为文件名
+           QString fileName = QFileInfo(filePath).fileName();
+           int currentIndex = currentPageIndex();
+
+           if (currentIsPLC_) {
+               plcPageTitles[currentIndex] = fileName;
+               ui->plc_tab_widget->setTabText(currentIndex, fileName);
+           } else {
+               hmiPageTitles[currentIndex] = fileName;
+               ui->hmi_tab_widget->setTabText(currentIndex, fileName);
+           }
     } else {
         QMessageBox::critical(this, "错误", "保存项目失败");
     }
@@ -534,22 +569,19 @@ void MainWindow::onListwidgetCurrenttextchanged(const QString &currentText)
 
 void MainWindow::onTabCloseRequested(int index)
 {
-    if (currentIsPLC_) {
-        if (plcScenes.size() > 1) {
-            delete plcScenes.takeAt(index);
-            delete plcViews.takeAt(index);
-            ui->plc_tab_widget->removeTab(index);
-        } else {
-            QMessageBox::information(this, "提示", "至少保留一个PLC页面");
-        }
+    if (plcScenes.size() == 1) {
+        QMessageBox::information(this, "提示", "至少保留一个页面");
+        return;
+    }
+    if (currentIsPLC_)
+    {
+        plcPageTitles.removeAt(index);
+        delete plcScenes.takeAt(index);
+        delete plcViews.takeAt(index);
     } else {
-        if (hmiScenes.size() > 1) {
-            delete hmiScenes.takeAt(index);
-            delete hmiViews.takeAt(index);
-            ui->hmi_tab_widget->removeTab(index);
-        } else {
-            QMessageBox::information(this, "提示", "至少保留一个HMI页面");
-        }
+        hmiPageTitles.removeAt(index);
+        delete hmiScenes.takeAt(index);
+        delete hmiViews.takeAt(index);
     }
 }
 

mainwindow.h

@@ -49,10 +49,12 @@ private:
     // PLC状态
     QList<QGraphicsScene*> plcScenes;
     QList<MyGraphicsView*> plcViews;
+    QStringList plcPageTitles;
 
     // HMI状态
     QList<QGraphicsScene*> hmiScenes;
     QList<MyGraphicsView*> hmiViews;
+    QStringList hmiPageTitles;
 
     QString selectedComponentType;
     bool currentIsPLC_ = true;