Fixed recreate_GUI() after language change.

src/slic3r/GUI/GUI_App.cpp

@@ -137,7 +137,7 @@ bool GUI_App::OnInit()
     std::cerr << "Creating main frame..." << std::endl;
     if (wxImage::FindHandler(wxBITMAP_TYPE_PNG) == nullptr)
         wxImage::AddHandler(new wxPNGHandler());
-    mainframe = new MainFrame(no_plater, false);
+    mainframe = new MainFrame();
     sidebar().obj_list()->init_objects(); // propagate model objects to object list
     update_mode();
     SetTopWindow(mainframe);
@@ -277,8 +277,8 @@ void GUI_App::recreate_GUI()
 {
     std::cerr << "recreate_GUI" << std::endl;
 
-    auto topwindow = GetTopWindow();
-    mainframe = new MainFrame(no_plater,false);
+    MainFrame* topwindow = dynamic_cast<MainFrame*>(GetTopWindow());
+    mainframe = new MainFrame();
     sidebar().obj_list()->init_objects(); // propagate model objects to object list
     update_mode();
 
@@ -287,6 +287,20 @@ void GUI_App::recreate_GUI()
         topwindow->Destroy();
     }
 
+    m_printhost_job_queue.reset(new PrintHostJobQueue(mainframe->printhost_queue_dlg()));
+
+    CallAfter([this]() {
+        // temporary workaround for the correct behavior of the Scrolled sidebar panel
+        auto& panel = sidebar();
+        if (panel.obj_list()->GetMinHeight() > 200) {
+            wxWindowUpdateLocker noUpdates_sidebar(&panel);
+            panel.obj_list()->SetMinSize(wxSize(-1, 200));
+            panel.Layout();
+        }
+    });
+ 
+    mainframe->Show(true);
+
     // On OSX the UI was not initialized correctly if the wizard was called
     // before the UI was up and running.
     CallAfter([]() {

src/slic3r/GUI/GUI_App.hpp

@@ -71,7 +71,6 @@ static wxString dots("…", wxConvUTF8);
 
 class GUI_App : public wxApp
 {
-    bool            no_plater{ false };
     bool            app_conf_exists{ false };
 
     // Lock to guard the callback stack

src/slic3r/GUI/MainFrame.cpp

@@ -28,10 +28,8 @@
 namespace Slic3r {
 namespace GUI {
 
-MainFrame::MainFrame(const bool no_plater, const bool loaded) :
+MainFrame::MainFrame() :
 wxFrame(NULL, wxID_ANY, SLIC3R_BUILD, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE),
-        m_no_plater(no_plater),
-        m_loaded(loaded),
         m_printhost_queue_dlg(new PrintHostQueueDialog(this))
 {
     // Load the icon either from the exe, or from the ico file.
@@ -125,11 +123,9 @@ void MainFrame::init_tabpanel()
         }
     });
 
-    if (!m_no_plater) {
-        m_plater = new Slic3r::GUI::Plater(m_tabpanel, this);
-        wxGetApp().plater_ = m_plater;
-        m_tabpanel->AddPage(m_plater, _(L("Plater")));
-    }
+    m_plater = new Slic3r::GUI::Plater(m_tabpanel, this);
+    wxGetApp().plater_ = m_plater;
+    m_tabpanel->AddPage(m_plater, _(L("Plater")));
 
     // The following event is emited by Tab implementation on config value change.
     Bind(EVT_TAB_VALUE_CHANGED, &MainFrame::on_value_changed, this);

src/slic3r/GUI/MainFrame.hpp

@@ -42,10 +42,7 @@ struct PresetTab {
 
 class MainFrame : public wxFrame
 {
-    bool        m_no_plater;
-    bool        m_loaded;
-    int         m_lang_ch_event;
-    int         m_preferences_event;
+    bool        m_loaded {false};
 
     wxString    m_qs_last_input_file = wxEmptyString;
     wxString    m_qs_last_output_file = wxEmptyString;
@@ -71,8 +68,7 @@ class MainFrame : public wxFrame
     bool can_delete_all() const;
 
 public:
-    MainFrame() {}
-    MainFrame(const bool no_plater, const bool loaded);
+    MainFrame();
     ~MainFrame() {}
 
     Plater*     plater() { return m_plater; }