Big cleanup

pglab/ManagedPage.h

@@ -3,6 +3,9 @@
 
 #include <QWidget>
 
+/// Base class for widgets that are used as on the tabs in DatabaseWindow
+/// if a widget does not inherit from managed pase DatabaseWindow will
+/// fallback on default behaviour.
 class ManagedPage: public QWidget
 {
 	Q_OBJECT
@@ -11,6 +14,7 @@ public:
 
 	virtual ~ManagedPage() {}
 
+    /// Tells DatabaseWindow if it is ok to close this tab
 	virtual bool CanClose(bool prompt_user) = 0;
 };