Task #1892: giving proper error box when opening a strategy fails (after...

Task #1892: giving proper error box when opening a strategy fails (after feedback from Arpad Miskolczi)

CEP/DP3/AOFlagger/src/gui/editstrategywindow.cpp

@@ -20,6 +20,7 @@
 #include <iostream>
 
 #include <gtkmm/stock.h>
+#include <gtkmm/messagedialog.h>
 
 #include <AOFlagger/strategy/actions/iterationaction.h>
 #include <AOFlagger/strategy/actions/strategyaction.h>
@@ -517,11 +518,17 @@ void EditStrategyWindow::onOpenClicked()
 		StrategyReader reader;
 		std::string filename(dialog.get_filename());
 		Strategy *oldStrategy = _strategy;
-		_strategy = reader.CreateStrategyFromFile(filename);
-		_msWindow.SetStrategy(_strategy);
-		delete oldStrategy;
-		_store->clear();
-		fillStore();
+		try {
+			_strategy = reader.CreateStrategyFromFile(filename);
+			_msWindow.SetStrategy(_strategy);
+			delete oldStrategy;
+			_store->clear();
+			fillStore();
+		} catch(std::exception &e)
+		{
+			Gtk::MessageDialog dialog(*this, e.what(), false, Gtk::MESSAGE_ERROR);
+			dialog.run();
+		}
 	}
 }