Implemented Application recreate after changing of language.

* Implementation of C++ to Perl callbacks from menu item Localization.
* Added global variable g_tabs_list to control existing Tabs.

xs/src/slic3r/GUI/GUI.cpp

@@ -166,6 +166,8 @@ wxApp       *g_wxApp        = nullptr;
 wxFrame     *g_wxMainFrame  = nullptr;
 wxNotebook  *g_wxTabPanel   = nullptr;
 
+std::vector<Tab *> g_tabs_list;
+
 wxLocale*		m_Locale;
 std::string		m_local_dir;
 
@@ -184,6 +186,26 @@ void set_tab_panel(wxNotebook *tab_panel)
     g_wxTabPanel = tab_panel;
 }
 
+std::vector<Tab *>& get_tabs_list()
+{
+	return g_tabs_list;
+}
+
+bool checked_tab(Tab* tab)
+{
+	bool ret = true;
+	if (find(g_tabs_list.begin(), g_tabs_list.end(), tab) == g_tabs_list.end())
+		ret = false;
+	return ret;
+}
+
+void delete_tab_from_list(Tab* tab)
+{
+	std::vector<Tab *>::iterator itr = find(g_tabs_list.begin(), g_tabs_list.end(), tab);
+	if (itr != g_tabs_list.end())
+		g_tabs_list.erase(itr);
+}
+
 bool select_language(wxArrayString & names,
 	wxArrayLong & identifiers)
 {
@@ -214,10 +236,10 @@ bool load_language()
 	long language;
 // 	if (!config.Read(wxT("wxTranslation_Language"),
 // 		&language, wxLANGUAGE_UNKNOWN))
-// 	{
-		language = wxLANGUAGE_UKRAINIAN;// wxLANGUAGE_UNKNOWN;
-// 	}
-// 	if (language == wxLANGUAGE_UNKNOWN) return false;
+	{
+		language = wxLANGUAGE_ENGLISH_US;// wxLANGUAGE_UKRAINIAN;// wxLANGUAGE_UNKNOWN;
+	}
+	if (language == wxLANGUAGE_UNKNOWN) return false;
 	wxArrayString names;
 	wxArrayLong identifiers;
 	get_installed_languages(names, identifiers);
@@ -287,16 +309,22 @@ void get_installed_languages(wxArrayString & names,
 	}
 }
 
-void add_debug_menu(wxMenuBar *menu)
+void add_debug_menu(wxMenuBar *menu, int event_language_change)
 {
 //#if 0
     auto local_menu = new wxMenu();
 	local_menu->Append(wxWindow::NewControlId(1), _L("Change Application Language"));
-	local_menu->Bind(wxEVT_MENU, [](wxEvent&){
+	local_menu->Bind(wxEVT_MENU, [event_language_change](wxEvent&){
 		wxArrayString names;
 		wxArrayLong identifiers;
 		get_installed_languages(names, identifiers);
-		select_language(names, identifiers);
+		if (select_language(names, identifiers)){
+			show_info(g_wxTabPanel, "Application will be restarted", "Attention!");
+			if (event_language_change > 0) {
+				wxCommandEvent event(event_language_change);
+				g_wxApp->ProcessEvent(event);
+			}
+		}
 	});
 	menu->Append(local_menu, _T("&Localization"));
 //#endif

xs/src/slic3r/GUI/GUI.hpp

@@ -58,7 +58,7 @@ void set_wxapp(wxApp *app);
 void set_main_frame(wxFrame *main_frame);
 void set_tab_panel(wxNotebook *tab_panel);
 
-void add_debug_menu(wxMenuBar *menu);
+void add_debug_menu(wxMenuBar *menu, int event_language_change);
 // Create a new preset tab (print, filament and printer),
 void create_preset_tabs(PresetBundle *preset_bundle, AppConfig *app_config, 
 						bool no_controller, bool is_disabled_button_browse,	bool is_user_agent,
@@ -83,6 +83,10 @@ void get_installed_languages(wxArrayString & names, wxArrayLong & identifiers);
 // select language from the list of installed languages
 bool select_language(wxArrayString & names, wxArrayLong & identifiers);
 
+std::vector<Tab *>& get_tabs_list();
+bool checked_tab(Tab* tab);
+void delete_tab_from_list(Tab* tab);
+
 } }
 
 #endif

xs/src/slic3r/GUI/Tab.cpp

@@ -1238,7 +1238,7 @@ void TabPrinter::build_extruder_pages(){
 	// # rebuild page list
 	PageShp page_note = m_pages.back();
 	m_pages.pop_back();
-	while (m_pages.back()->title().find("Extruder") != std::string::npos)
+	while (m_pages.back()->title().find(_L("Extruder")) != std::string::npos)
 		m_pages.pop_back();
 	for (auto page_extruder : m_extruder_pages)
 		m_pages.push_back(page_extruder);
@@ -1361,6 +1361,9 @@ void Tab::load_current_preset()
 	// preset dirty again
 	// (not sure this is true anymore now that update_dirty is idempotent)
 	wxTheApp->CallAfter([this]{
+		// checking out if this Tab exists till this moment
+		if (!checked_tab(this))
+			return;
 		update_tab_ui();
 		on_presets_changed();
 	});

xs/src/slic3r/GUI/Tab.hpp

@@ -112,11 +112,12 @@ public:
 
 public:
 	Tab() {}
-	Tab(wxNotebook* parent, const char *title, const char* name, bool no_controller) : 
+	Tab(wxNotebook* parent, wxString title, const char* name, bool no_controller) : 
 		m_parent(parent), m_title(title), m_name(name), m_no_controller(no_controller) {
 		Create(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxBK_LEFT | wxTAB_TRAVERSAL);
+		get_tabs_list().push_back(this);
 	}
-	~Tab(){}
+	~Tab() { delete_tab_from_list(this); }
 
 	wxWindow*	parent() const { return m_parent; }
 	wxString	title()	 const { return m_title; }
@@ -160,7 +161,10 @@ public:
 	wxSizer*		description_line_widget(wxWindow* parent, ogStaticText** StaticText);
 	bool			current_preset_is_dirty();
 	DynamicPrintConfig*	get_config() { return m_config; }
-	PresetCollection*	get_presets() { return m_presets; }
+	PresetCollection*	get_presets()
+	{
+		return m_presets;
+	}
 	std::vector<std::string>	get_dependent_tabs() { return m_reload_dependent_tabs; }
 
 	void			on_value_change(std::string opt_key, boost::any value);

xs/src/slic3r/GUI/TabIface.cpp

@@ -13,7 +13,7 @@ bool	TabIface::current_preset_is_dirty()					{ return m_tab->current_preset_is_d
 void	TabIface::OnActivate()								{ return m_tab->OnActivate();}
 std::string					TabIface::title()				{ return m_tab->title().ToStdString();}
 DynamicPrintConfig*			TabIface::get_config()			{ return m_tab->get_config(); }
-PresetCollection*			TabIface::get_presets()			{ return m_tab->get_presets(); }
+PresetCollection*			TabIface::get_presets()			{ return m_tab!=nullptr ? m_tab->get_presets() : nullptr; }
 std::vector<std::string>	TabIface::get_dependent_tabs()	{ return m_tab->get_dependent_tabs(); }
 
 }; // namespace Slic3r