Tech ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED set as default

src/libslic3r/Format/3mf.cpp

@@ -2710,16 +2710,10 @@ namespace Slic3r {
 
     bool _3MF_Exporter::_add_build_to_model_stream(std::stringstream& stream, const BuildItemsList& build_items)
     {
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
         // This happens for empty projects
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
         if (build_items.size() == 0) {
             add_error("No build item found");
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
             return true;
-#else
-            return false;
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
         }
 
         stream << " <" << BUILD_TAG << ">\n";

src/libslic3r/Model.cpp

@@ -160,13 +160,7 @@ Model Model::read_from_archive(const std::string& input_file, DynamicPrintConfig
     if (!result)
         throw Slic3r::RuntimeError("Loading of a model file failed.");
 
-#if !ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
-    if (model.objects.empty())
-        throw Slic3r::RuntimeError("The supplied file couldn't be read because it's empty");
-#endif // !ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
-
-    for (ModelObject *o : model.objects)
-    {
+    for (ModelObject *o : model.objects) {
 //        if (boost::algorithm::iends_with(input_file, ".zip.amf"))
 //        {
 //            // we remove the .zip part of the extension to avoid it be added to filenames when exporting

src/libslic3r/Technologies.hpp

@@ -36,17 +36,6 @@
 #define ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS 1
 
 
-//====================
-// 2.4.0.alpha1 techs
-//====================
-#define ENABLE_2_4_0_ALPHA1 1
-
-// Enable implementation of retract acceleration in gcode processor
-#define ENABLE_RETRACT_ACCELERATION (1 && ENABLE_2_4_0_ALPHA1)
-// Enable save and save as commands to be enabled also when the plater is empty and allow to load empty projects
-#define ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED (1 && ENABLE_2_4_0_ALPHA1)
-
-
 //====================
 // 2.4.0.alpha2 techs
 //====================

src/slic3r/GUI/GLCanvas3D.cpp

@@ -4130,24 +4130,15 @@ void GLCanvas3D::_render_thumbnail_internal(ThumbnailData& thumbnail_data, const
         }
     }
 
-#if !ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
-    if (visible_volumes.empty())
-        return;
-#endif // !ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
-
     BoundingBoxf3 volumes_box;
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
     if (!visible_volumes.empty()) {
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
         for (const GLVolume* vol : visible_volumes) {
             volumes_box.merge(vol->transformed_bounding_box());
         }
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
     }
     else
         // This happens for empty projects
         volumes_box = m_bed.extended_bounding_box();
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
 
     Camera camera;
     camera.set_type(camera_type);

src/slic3r/GUI/MainFrame.cpp

@@ -831,26 +831,15 @@ bool MainFrame::can_start_new_project() const
 
 bool MainFrame::can_save() const
 {
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
     return (m_plater != nullptr) &&
         !m_plater->canvas3D()->get_gizmos_manager().is_in_editing_mode(false) &&
         m_plater->is_project_dirty();
-#else
-    return (m_plater != nullptr) && !m_plater->model().objects.empty() &&
-        !m_plater->canvas3D()->get_gizmos_manager().is_in_editing_mode(false) &&
-        !m_plater->get_project_filename().empty() && m_plater->is_project_dirty();
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
 }
 
 bool MainFrame::can_save_as() const
 {
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
     return (m_plater != nullptr) &&
         !m_plater->canvas3D()->get_gizmos_manager().is_in_editing_mode(false);
-#else
-    return (m_plater != nullptr) && !m_plater->model().objects.empty() &&
-        !m_plater->canvas3D()->get_gizmos_manager().is_in_editing_mode(false);
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
 }
 
 void MainFrame::save_project()

src/slic3r/GUI/Plater.cpp

@@ -5918,16 +5918,11 @@ void Plater::export_amf()
 
 bool Plater::export_3mf(const boost::filesystem::path& output_path)
 {
-#if ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
     if (p->model.objects.empty()) {
         MessageDialog dialog(nullptr, _L("The plater is empty.\nDo you want to save the project?"), _L("Save project"), wxYES_NO);
         if (dialog.ShowModal() != wxID_YES)
             return false;
     }
-#else
-    if (p->model.objects.empty())
-        return false;
-#endif // ENABLE_SAVE_COMMANDS_ALWAYS_ENABLED
 
     wxString path;
     bool export_config = true;