--- a/mainwindow.h	Sat Jan 21 23:52:16 2012 +0100
+++ b/mainwindow.h	Sun Jan 22 00:36:05 2012 +0100
@@ -7,9 +7,14 @@
 
 class MainWindow : public QMainWindow
 {
+  Q_OBJECT
   public:
    MainWindow(QWidget *parent = 0);
+   ~MainWindow();
+  protected slots:
+   void open();
   private:
+   QString currentFile;
    Ui::MainWindow *ui; 
 };