Merge branch 'lm_250' into dev_250

src/libslic3r/AppConfig.cpp

@@ -225,8 +225,13 @@ static std::string appconfig_md5_hash_line(const std::string_view data)
     return "# MD5 checksum " + md5_digest_str + "\n";
 };
 
+struct ConfigFileInfo {
+    bool correct_checksum {false};
+    bool contains_null {false};
+};
+
 // Assume that the last line with the comment inside the config file contains a checksum and that the user didn't modify the config file.
-static bool verify_config_file_checksum(boost::nowide::ifstream &ifs)
+static ConfigFileInfo check_config_file_and_verify_checksum(boost::nowide::ifstream &ifs)
 {
     auto read_whole_config_file = [&ifs]() -> std::string {
         std::stringstream ss;
@@ -235,7 +240,8 @@ static bool verify_config_file_checksum(boost::nowide::ifstream &ifs)
     };
 
     ifs.seekg(0, boost::nowide::ifstream::beg);
-    std::string whole_config = read_whole_config_file();
+    const std::string whole_config  = read_whole_config_file();
+    const bool        contains_null = whole_config.find_first_of('\0') != std::string::npos;
 
     // The checksum should be on the last line in the config file.
     if (size_t last_comment_pos = whole_config.find_last_of('#'); last_comment_pos != std::string::npos) {
@@ -244,9 +250,9 @@ static bool verify_config_file_checksum(boost::nowide::ifstream &ifs)
         // When the checksum isn't found, the checksum was not saved correctly, it was removed or it is an older config file without the checksum.
         // If the checksum is incorrect, then the file was either not saved correctly or modified.
         if (std::string_view(whole_config.c_str() + last_comment_pos, whole_config.size() - last_comment_pos) == appconfig_md5_hash_line({ whole_config.data(), last_comment_pos }))
-            return true;
+            return {true, contains_null};
     }
-    return false;
+    return {false, contains_null};
 }
 #endif
 
@@ -264,14 +270,25 @@ std::string AppConfig::load(const std::string &path)
         ifs.open(path);
 #ifdef WIN32
         // Verify the checksum of the config file without taking just for debugging purpose.
-        if (!verify_config_file_checksum(ifs))
-            BOOST_LOG_TRIVIAL(info) << "The configuration file " << path <<
-            " has a wrong MD5 checksum or the checksum is missing. This may indicate a file corruption or a harmless user edit.";
+        const ConfigFileInfo config_file_info = check_config_file_and_verify_checksum(ifs);
+        if (!config_file_info.correct_checksum)
+            BOOST_LOG_TRIVIAL(info)
+                << "The configuration file " << path
+                << " has a wrong MD5 checksum or the checksum is missing. This may indicate a file corruption or a harmless user edit.";
+
+        if (!config_file_info.correct_checksum && config_file_info.contains_null) {
+            BOOST_LOG_TRIVIAL(info) << "The configuration file " + path + " is corrupted, because it is contains null characters.";
+            throw Slic3r::CriticalException("The configuration file contains null characters.");
+        }
 
         ifs.seekg(0, boost::nowide::ifstream::beg);
 #endif
-        pt::read_ini(ifs, tree);
-    } catch (pt::ptree_error& ex) {
+        try {
+            pt::read_ini(ifs, tree);
+        } catch (pt::ptree_error &ex) {
+            throw Slic3r::CriticalException(ex.what());
+        }
+    } catch (Slic3r::CriticalException &ex) {
 #ifdef WIN32
         // The configuration file is corrupted, try replacing it with the backup configuration.
         ifs.close();
@@ -279,29 +296,29 @@ std::string AppConfig::load(const std::string &path)
         if (boost::filesystem::exists(backup_path)) {
             // Compute checksum of the configuration backup file and try to load configuration from it when the checksum is correct.
             boost::nowide::ifstream backup_ifs(backup_path);
-            if (!verify_config_file_checksum(backup_ifs)) {
-                BOOST_LOG_TRIVIAL(error) << format("Both \"%1%\" and \"%2%\" are corrupted. It isn't possible to restore configuration from the backup.", path, backup_path);
+            if (const ConfigFileInfo config_file_info = check_config_file_and_verify_checksum(backup_ifs); !config_file_info.correct_checksum || config_file_info.contains_null) {
+                BOOST_LOG_TRIVIAL(error) << format(R"(Both "%1%" and "%2%" are corrupted. It isn't possible to restore configuration from the backup.)", path, backup_path);
                 backup_ifs.close();
                 boost::filesystem::remove(backup_path);
             } else if (std::string error_message; copy_file(backup_path, path, error_message, false) != SUCCESS) {
-                BOOST_LOG_TRIVIAL(error) << format("Configuration file \"%1%\" is corrupted. Failed to restore from backup \"%2%\": %3%", path, backup_path, error_message);
+                BOOST_LOG_TRIVIAL(error) << format(R"(Configuration file "%1%" is corrupted. Failed to restore from backup "%2%": %3%)", path, backup_path, error_message);
                 backup_ifs.close();
                 boost::filesystem::remove(backup_path);
             } else {
-                BOOST_LOG_TRIVIAL(info) << format("Configuration file \"%1%\" was corrupted. It has been succesfully restored from the backup \"%2%\".", path, backup_path);
+                BOOST_LOG_TRIVIAL(info) << format(R"(Configuration file "%1%" was corrupted. It has been successfully restored from the backup "%2%".)", path, backup_path);
                 // Try parse configuration file after restore from backup.
                 try {
                     ifs.open(path);
                     pt::read_ini(ifs, tree);
                     recovered = true;
                 } catch (pt::ptree_error& ex) {
-                    BOOST_LOG_TRIVIAL(info) << format("Failed to parse configuration file \"%1%\" after it has been restored from backup: %2%", path, ex.what());
+                    BOOST_LOG_TRIVIAL(info) << format(R"(Failed to parse configuration file "%1%" after it has been restored from backup: %2%)", path, ex.what());
                 }
             }
         } else
 #endif // WIN32
-            BOOST_LOG_TRIVIAL(info) << format("Failed to parse configuration file \"%1%\": %2%", path, ex.what());
-        if (! recovered) {
+            BOOST_LOG_TRIVIAL(info) << format(R"(Failed to parse configuration file "%1%": %2%)", path, ex.what());
+        if (!recovered) {
             // Report the initial error of parsing PrusaSlicer.ini.
             // Error while parsing config file. We'll customize the error message and rethrow to be displayed.
             // ! But to avoid the use of _utf8 (related to use of wxWidgets) 

src/libslic3r/ExtrusionEntity.hpp

@@ -84,7 +84,7 @@ public:
     virtual ExtrusionEntity* clone() const = 0;
     // Create a new object, initialize it with this object using the move semantics.
     virtual ExtrusionEntity* clone_move() = 0;
-    virtual ~ExtrusionEntity() {}
+    virtual ~ExtrusionEntity() = default;
     virtual void reverse() = 0;
     virtual const Point& first_point() const = 0;
     virtual const Point& last_point() const = 0;

src/libslic3r/ExtrusionEntityCollection.hpp

@@ -36,9 +36,13 @@ public:
     ExtrusionEntityCollection(ExtrusionEntityCollection &&other) : entities(std::move(other.entities)), no_sort(other.no_sort) {}
     explicit ExtrusionEntityCollection(const ExtrusionPaths &paths);
     ExtrusionEntityCollection& operator=(const ExtrusionEntityCollection &other);
-    ExtrusionEntityCollection& operator=(ExtrusionEntityCollection &&other)
-        { this->entities = std::move(other.entities); this->no_sort = other.no_sort; return *this; }
-    ~ExtrusionEntityCollection() { clear(); }
+    ExtrusionEntityCollection& operator=(ExtrusionEntityCollection &&other) {
+        this->clear();
+        this->entities = std::move(other.entities);
+        this->no_sort  = other.no_sort;
+        return *this;
+    }
+    ~ExtrusionEntityCollection() override { clear(); }
     explicit operator ExtrusionPaths() const;
     
     bool is_collection() const override { return true; }

src/libslic3r/GCode.cpp

@@ -35,6 +35,8 @@
 #include "SVG.hpp"
 
 #include <tbb/parallel_for.h>
+#include <tbb/task_scheduler_observer.h>
+#include <tbb/enumerable_thread_specific.h>
 
 // Intel redesigned some TBB interface considerably when merging TBB with their oneAPI set of libraries, see GH #7332.
 // We are using quite an old TBB 2017 U7. Before we update our build servers, let's use the old API, which is deprecated in up to date TBB.
@@ -455,7 +457,7 @@ namespace Slic3r {
                 bool ignore_sparse = false;
                 if (gcodegen.config().wipe_tower_no_sparse_layers.value) {
                     wipe_tower_z = m_last_wipe_tower_print_z;
-                    ignore_sparse = (m_tool_changes[m_layer_idx].size() == 1 && m_tool_changes[m_layer_idx].front().initial_tool == m_tool_changes[m_layer_idx].front().new_tool);
+                    ignore_sparse = (m_tool_changes[m_layer_idx].size() == 1 && m_tool_changes[m_layer_idx].front().initial_tool == m_tool_changes[m_layer_idx].front().new_tool && m_layer_idx != 0);
                     if (m_tool_change_idx == 0 && !ignore_sparse)
                         wipe_tower_z = m_last_wipe_tower_print_z + m_tool_changes[m_layer_idx].front().layer_height;
                 }
@@ -1537,6 +1539,32 @@ void GCode::_do_export(Print& print, GCodeOutputStream &file, ThumbnailsGenerato
     print.throw_if_canceled();
 }
 
+// For unknown reasons and in sporadic cases when GCode export is processing, some participating thread
+// in tbb::parallel_pipeline has not set locales to "C", probably because this thread is newly spawned.
+// So in this class method on_scheduler_entry is called for every thread before it starts participating
+// in tbb::parallel_pipeline to ensure that locales are set correctly
+
+// For tbb::parallel_pipeline, it seems that on_scheduler_entry is called for every layer and every filter.
+// We ensure using thread-local storage that locales will be set to "C" just once for any participating thread.
+class TBBLocalesSetter : public tbb::task_scheduler_observer
+{
+public:
+    TBBLocalesSetter() { this->observe(true); }
+    ~TBBLocalesSetter() override = default;
+
+    void on_scheduler_entry(bool is_worker) override
+    {
+        if (bool &is_locales_sets = m_is_locales_sets.local(); !is_locales_sets) {
+            // Set locales of the worker thread to "C".
+            set_c_locales();
+            is_locales_sets = true;
+        }
+    }
+
+private:
+    tbb::enumerable_thread_specific<bool, tbb::cache_aligned_allocator<bool>, tbb::ets_key_usage_type::ets_key_per_instance> m_is_locales_sets;
+};
+
 // Process all layers of all objects (non-sequential mode) with a parallel pipeline:
 // Generate G-code, run the filters (vase mode, cooling buffer), run the G-code analyser
 // and export G-code into file.
@@ -1580,6 +1608,10 @@ void GCode::process_layers(
         [&output_stream](std::string s) { output_stream.write(s); }
     );
 
+    // It registers a handler that sets locales to "C" before any TBB thread starts participating in tbb::parallel_pipeline.
+    // Handler is unregistered when the destructor is called.
+    TBBLocalesSetter locales_setter;
+
     // The pipeline elements are joined using const references, thus no copying is performed.
     output_stream.find_replace_supress();
     if (m_spiral_vase && m_find_replace)
@@ -1633,6 +1665,10 @@ void GCode::process_layers(
         [&output_stream](std::string s) { output_stream.write(s); }
     );
 
+    // It registers a handler that sets locales to "C" before any TBB thread starts participating in tbb::parallel_pipeline.
+    // Handler is unregistered when the destructor is called.
+    TBBLocalesSetter locales_setter;
+
     // The pipeline elements are joined using const references, thus no copying is performed.
     output_stream.find_replace_supress();
     if (m_spiral_vase && m_find_replace)

src/libslic3r/GCode/WipeTower.cpp

@@ -1180,7 +1180,7 @@ WipeTower::ToolChangeResult WipeTower::finish_layer()
 
     // Ask our writer about how much material was consumed.
     // Skip this in case the layer is sparse and config option to not print sparse layers is enabled.
-    if (! m_no_sparse_layers || toolchanges_on_layer)
+    if (! m_no_sparse_layers || toolchanges_on_layer || first_layer)
         if (m_current_tool < m_used_filament_length.size())
             m_used_filament_length[m_current_tool] += writer.get_and_reset_used_filament_length();
 
@@ -1196,7 +1196,7 @@ void WipeTower::plan_toolchange(float z_par, float layer_height_par, unsigned in
 	if (m_plan.empty() || m_plan.back().z + WT_EPSILON < z_par) // if we moved to a new layer, we'll add it to m_plan first
 		m_plan.push_back(WipeTowerInfo(z_par, layer_height_par));
 
-    if (m_first_layer_idx == size_t(-1) && (! m_no_sparse_layers || old_tool != new_tool))
+    if (m_first_layer_idx == size_t(-1) && (! m_no_sparse_layers || old_tool != new_tool || m_plan.size() == 1))
         m_first_layer_idx = m_plan.size() - 1;
 
     if (old_tool == new_tool)	// new layer without toolchanges - we are done

src/libslic3r/LocalesUtils.hpp

@@ -43,6 +43,25 @@ std::string float_to_string_decimal_point(double value, int precision = -1);
 //std::string float_to_string_decimal_point(float value,  int precision = -1);
 double string_to_double_decimal_point(const std::string_view str, size_t* pos = nullptr);
 
+// Set locales to "C".
+inline void set_c_locales()
+{
+#ifdef _WIN32
+    _configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
+    std::setlocale(LC_ALL, "C");
+#else
+    // We are leaking some memory here, because the newlocale() produced memory will never be released.
+    // This is not a problem though, as there will be a maximum one worker thread created per physical thread.
+    uselocale(newlocale(
+#ifdef __APPLE__
+        LC_ALL_MASK
+#else // some Unix / Linux / BSD
+        LC_ALL
+#endif
+        , "C", nullptr));
+#endif
+}
+
 } // namespace Slic3r
 
 #endif // slic3r_LocalesUtils_hpp_

src/libslic3r/Print.cpp

@@ -13,6 +13,7 @@
 #include "GCode.hpp"
 #include "GCode/WipeTower.hpp"
 #include "Utils.hpp"
+#include "BuildVolume.hpp"
 
 #include <float.h>
 
@@ -386,7 +387,7 @@ bool Print::sequential_print_horizontal_clearance_valid(const Print& print, Poly
                     Geometry::assemble_transform({ 0.0, 0.0, model_instance0->get_offset().z() }, model_instance0->get_rotation(), model_instance0->get_scaling_factor(), model_instance0->get_mirror())),
                     // Shrink the extruder_clearance_radius a tiny bit, so that if the object arrangement algorithm placed the objects
                     // exactly by satisfying the extruder_clearance_radius, this test will not trigger collision.
-                    float(scale_(0.5 * print.config().extruder_clearance_radius.value - EPSILON)),
+                    float(scale_(0.5 * print.config().extruder_clearance_radius.value - BuildVolume::BedEpsilon)),
                     jtRound, scale_(0.1)).front());
         }
 	    // Make a copy, so it may be rotated for instances.

src/libslic3r/Thread.cpp

@@ -15,6 +15,7 @@
 
 #include "Thread.hpp"
 #include "Utils.hpp"
+#include "LocalesUtils.hpp"
 
 namespace Slic3r {
 
@@ -234,21 +235,8 @@ void name_tbb_thread_pool_threads_set_locale()
 				std::ostringstream name;
 		        name << "slic3r_tbb_" << range.begin();
 		        set_current_thread_name(name.str().c_str());
-		        // Set locales of the worker thread to "C".
-#ifdef _WIN32
-			    _configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
-			    std::setlocale(LC_ALL, "C");
-#else
-				// We are leaking some memory here, because the newlocale() produced memory will never be released.
-				// This is not a problem though, as there will be a maximum one worker thread created per physical thread.
-				uselocale(newlocale(
-#ifdef __APPLE__
-					LC_ALL_MASK
-#else // some Unix / Linux / BSD
-					LC_ALL
-#endif
-					, "C", nullptr));
-#endif
+                // Set locales of the worker thread to "C".
+                set_c_locales();
     		}
         });
 }

src/slic3r/GUI/GCodeViewer.cpp

@@ -3448,9 +3448,8 @@ void GCodeViewer::render_legend(float& legend_height)
             PartialTimes items;
 
             std::vector<CustomGCode::Item> custom_gcode_per_print_z = wxGetApp().is_editor() ? wxGetApp().plater()->model().custom_gcode_per_print_z.gcodes : m_custom_gcode_per_print_z;
-            int extruders_count = wxGetApp().extruders_edited_cnt();
-            std::vector<Color> last_color(extruders_count);
-            for (int i = 0; i < extruders_count; ++i) {
+            std::vector<Color> last_color(m_extruders_count);
+            for (int i = 0; i < m_extruders_count; ++i) {
                 last_color[i] = m_tool_colors[i];
             }
             int last_extruder_id = 1;

src/slic3r/GUI/GLCanvas3D.cpp

@@ -6419,12 +6419,13 @@ bool GLCanvas3D::_is_any_volume_outside() const
 void GLCanvas3D::_update_selection_from_hover()
 {
     bool ctrl_pressed = wxGetKeyState(WXK_CONTROL);
+    bool selection_changed = false;
 
     if (m_hover_volume_idxs.empty()) {
-        if (!ctrl_pressed && (m_rectangle_selection.get_state() == GLSelectionRectangle::Select))
+        if (!ctrl_pressed && (m_rectangle_selection.get_state() == GLSelectionRectangle::Select)) {
+            selection_changed = ! m_selection.is_empty();
             m_selection.remove_all();
-
-        return;
+        }
     }
 
     GLSelectionRectangle::EState state = m_rectangle_selection.get_state();
@@ -6437,7 +6438,6 @@ void GLCanvas3D::_update_selection_from_hover()
         }
     }
 
-    bool selection_changed = false;
     if (state == GLSelectionRectangle::Select) {
         bool contains_all = true;
         for (int i : m_hover_volume_idxs) {

src/slic3r/GUI/Jobs/RotoptimizeJob.cpp

@@ -92,16 +92,18 @@ void RotoptimizeJob::finalize()
 
             auto    trmatrix = oi->get_transformation().get_matrix();
             Polygon trchull  = o->convex_hull_2d(trmatrix);
-
-            MinAreaBoundigBox rotbb(trchull, MinAreaBoundigBox::pcConvex);
-            double            phi = rotbb.angle_to_X();
-
-            // The box should be landscape
-            if(rotbb.width() < rotbb.height()) phi += PI / 2;
-
-            Vec3d rt = oi->get_rotation(); rt(Z) += phi;
-
-            oi->set_rotation(rt);
+            
+            if (!trchull.empty()) {
+                MinAreaBoundigBox rotbb(trchull, MinAreaBoundigBox::pcConvex);
+                double            phi = rotbb.angle_to_X();
+    
+                // The box should be landscape
+                if(rotbb.width() < rotbb.height()) phi += PI / 2;
+    
+                Vec3d rt = oi->get_rotation(); rt(Z) += phi;
+    
+                oi->set_rotation(rt);
+            }
         }
 
         // Correct the z offset of the object which was corrupted be

src/slic3r/GUI/SendSystemInfoDialog.cpp

@@ -140,7 +140,7 @@ static bool check_internet_connection_win()
 {
     bool internet = true; // return true if COM object creation fails.
 
-    if (CoInitializeEx(NULL, COINIT_APARTMENTTHREADED) == S_OK) {
+    if (SUCCEEDED(CoInitializeEx(NULL, COINIT_APARTMENTTHREADED))) {
         {
             CComPtr<INetworkListManager> pNLM;
             if (pNLM.CoCreateInstance(CLSID_NetworkListManager) == S_OK) {