add recovery save on exception

engine.vcxproj

@@ -354,7 +354,9 @@
     <Natvis Include="libs\glm\util\glm.natvis" />
   </ItemGroup>
   <ItemGroup>
-    <Xml Include="data\layout.xml" />
+    <Xml Include="data\layout.xml">
+      <SubType>Designer</SubType>
+    </Xml>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">

engine/app_layout.cpp

@@ -606,6 +606,14 @@ void App::initLayout()
         init_menu_layer();
         init_menu_timelapse();
 
+        if (auto* menu_entry = layout[main_id]->find<NodeButtonCustom>("menu-about"))
+        {
+            menu_entry->on_click = [=](Node*) {
+//                 int x = 0;
+//                 sin(time(0) / x);
+            };
+        }
+
         Brush b;
         b.m_tex_id = brushes->get_texture_id(0);
         b.id = brushes->get_brush_id(0);

engine/main.cpp

@@ -245,6 +245,16 @@ static void SetupExceptionHandler()
     BT_AddLogFile(wpath);
 
     BT_SetPreErrHandler([](INT_PTR){
+        if (ui::Canvas::I)
+        {
+            auto path = App::I.data_path + "/recovery.pano";
+            ui::Canvas::I->project_save_thread(path);
+            static char abspath[MAX_PATH];
+            GetFullPathNameA(path.c_str(), MAX_PATH, abspath, NULL);
+            static char message[4096];
+            snprintf(message, sizeof(message), "File recovered in: %s", abspath);
+            MessageBoxA(NULL, message, "File Recovery", MB_OK | MB_ICONWARNING);
+        }
         LogRemote::I.file_close();
     }, 0);
 }