1 files changed, 4 insertions, 1 deletions
diff --git a/gui/basewindow.h b/gui/basewindow.h
index 038b82c5..601f6acb 100644
--- a/gui/basewindow.h
+++ b/gui/basewindow.h
@@ -39,7 +39,7 @@ class BaseMainWindow : public QMainWindow
     Q_OBJECT
 
   public:
-    explicit BaseMainWindow(Context *ctx, QWidget *parent = 0);
+    explicit BaseMainWindow(QWidget *parent = 0);
     virtual ~BaseMainWindow();
     Context *getContext() { return ctx; }
 
@@ -53,6 +53,9 @@ class BaseMainWindow : public QMainWindow
     virtual void open_proj() = 0;
     virtual bool save_proj() = 0;
 
+  Q_SIGNALS:
+    void contextChanged(Context *ctx);
+
   protected:
     Context *ctx;
     QTabWidget *tabWidget;