editor validate the debug party preference

src/scenedit/SConscript

@@ -1,5 +1,5 @@
 
-Import("env platform common_sources install_dir")
+Import("env platform common_sources party_classes install_dir")
 
 scened_sources = Split("""
 	scen.actions.cpp
@@ -11,6 +11,7 @@ scened_sources = Split("""
 	scen.main.cpp
 	scen.townout.cpp
 	../view_dialogs.cpp
+	../fileio/fileio_party.cpp
 """)
 
 if str(platform) == "darwin":
@@ -30,7 +31,7 @@ elif str(platform) == "posix":
 		scen.menu.cpp
 	"""))
 
-scened = env.Program("#build/bin/BoE Scenario Editor", scened_sources + common_sources)
+scened = env.Program("#build/bin/BoE Scenario Editor", scened_sources + common_sources + party_classes)
 debug_symbols = None
 if str(platform) == "win32" and 'msvc' in env["TOOLS"] and not env['release']:
 	debug_symbols = scened[0].abspath.replace('.exe', '.pdb')

src/scenedit/scen.main.cpp

@@ -43,6 +43,7 @@
 #include "tools/event_listener.hpp"
 #include "tools/drawable_manager.hpp"
 #include "tools/keymods.hpp"
+#include "universe/universe.hpp"
 
 #ifdef __APPLE__
 short menuChoiceId=-1;
@@ -864,6 +865,21 @@ void pick_preferences() {
 	cTextField& default_party_field = dynamic_cast<cTextField&>(prefsDlog["party-path"]);
 	default_party_field.setText(get_string_pref("DefaultPartyPath"));
 
+	default_party_field.attachFocusHandler([](cDialog& me, std::string id, bool losing) -> bool {
+		if(!losing) return true;
+		std::string debug_party = me[id].getText();
+		// Validate the debug party
+		if(!debug_party.empty()){
+			cUniverse univ;
+			if(!load_party(debug_party, univ)){
+				showError("Your chosen debug party could not be loaded.", "", &me);
+				me[id].setText(get_string_pref("DefaultPartyPath"));
+				return false;
+			}
+		}
+		return true;
+	});
+
 	cButton& choose_button = dynamic_cast<cButton&>(prefsDlog["choose-party"]);
 	choose_button.attachClickHandler([&default_party_field](cDialog& me, std::string, eKeyMod) -> bool {
 		fs::path new_path = nav_get_party();