feat:初始化wuhan_QT界面代码

mainwindow.h

@@ -0,0 +1,40 @@
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QVector>
+#include "global.h"
+
+class QStackedWidget;
+class QLabel;
+class AppContext;
+class BasePage;
+class FaultQueryPage;
+
+// ===================== 主窗口（全屏无边框 + 页面路由） =====================
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+public:
+    explicit MainWindow(QWidget* parent = nullptr);
+    ~MainWindow();
+
+protected:
+    void keyPressEvent(QKeyEvent* ev) override;
+
+private slots:
+    void onNavigate(PageId id);
+    void onEstopChanged(bool triggered);
+
+private:
+    void buildPages();
+    BasePage* page(PageId id) const { return m_pages.value(id, nullptr); }
+
+    AppContext* m_ctx = nullptr;
+    QStackedWidget* m_stack = nullptr;
+    QLabel* m_estopBanner = nullptr;
+    QVector<BasePage*> m_pages;
+    FaultQueryPage* m_faultPage = nullptr;
+};
+
+#endif // MAINWINDOW_H