First Commit

Projects/02_ClassroomTimer/mainwindow.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <QMainWindow>
+#include <QElapsedTimer>
+#include <QTimer>
+#include "countdown.h"
+namespace Ui { class MainWindow; }
+
+class MainWindow : public QMainWindow {
+    Q_OBJECT
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+    ~MainWindow() override;
+private:
+    Ui::MainWindow *ui;
+    Countdown m_countdown;
+    QElapsedTimer m_clock;
+    QTimer m_refreshTimer;
+    void durationChanged();
+    void refreshDisplay();
+};
+