Mouse detection

mainwindow.h

@@ -17,6 +17,14 @@ public:
     MainWindow(QWidget *parent = nullptr);
     ~MainWindow();
 
+public slots:
+    void onGridUpdated();
+
+private slots:
+    void on_spinGridWidth_valueChanged(int arg1);
+
+    void on_spinGridHeight_valueChanged(int arg1);
+
 private:
     Ui::MainWindow *ui;
 };