Reduced memory leaks in ConfigDef / PrintConfigDef

Deleted unsafe default copy constructors / operators in Model / ModelObject / ModelInstance / ModelVolume
Fixed some issues with copying the Model / ModelObject / ModelInstance / ModelVolume inside Print::apply()
Fixed some invalidation issues in Print::apply()
Temporarily renamed the Slic3rPE profile directory to Slic3rPE-alpha.

src/CMakeLists.txt

@@ -125,7 +125,6 @@ if (MSVC)
     add_executable(slic3r_app_gui WIN32 slic3r_app_msvc.cpp ${CMAKE_CURRENT_BINARY_DIR}/slic3r.rc)
     target_compile_definitions(slic3r_app_gui PRIVATE -DSLIC3R_WRAPPER_NOCONSOLE -DSLIC3R_WRAPPER_GUI)
     add_dependencies(slic3r_app_gui slic3r)
-    target_link_libraries(slic3r_app_gui "-lShell32.lib")
     set_target_properties(slic3r_app_gui PROPERTIES OUTPUT_NAME "slic3r")
 
     add_executable(slic3r_app_console slic3r_app_msvc.cpp ${CMAKE_CURRENT_BINARY_DIR}/slic3r.rc)
@@ -136,7 +135,6 @@ if (MSVC)
     add_executable(slic3r_app_noconsole WIN32 slic3r_app_msvc.cpp ${CMAKE_CURRENT_BINARY_DIR}/slic3r.rc)
     target_compile_definitions(slic3r_app_noconsole PRIVATE -DSLIC3R_WRAPPER_NOCONSOLE -DSLIC3R_WRAPPER_NOGUI)
     add_dependencies(slic3r_app_noconsole slic3r)
-    target_link_libraries(slic3r_app_gui "-lShell32.lib")
     set_target_properties(slic3r_app_noconsole PROPERTIES OUTPUT_NAME "slic3r-noconsole")
 endif ()
 

src/libslic3r/Config.hpp

@@ -1022,6 +1022,12 @@ typedef std::map<t_config_option_key, ConfigOptionDef> t_optiondef_map;
 class ConfigDef
 {
 public:
+	~ConfigDef() { 
+		for (std::pair<const t_config_option_key, ConfigOptionDef> &def : this->options) 
+			delete def.second.default_value;
+        this->options.clear();
+	}
+
     t_optiondef_map         options;
 
     bool                    has(const t_config_option_key &opt_key) const { return this->options.count(opt_key) > 0; }

src/libslic3r/Model.cpp

@@ -483,30 +483,10 @@ void Model::reset_auto_extruder_id()
     s_auto_extruder_id = 1;
 }
 
-ModelObject::ModelObject(Model *model, const ModelObject &other, bool copy_volumes) :  
+ModelObject::ModelObject(Model *model, const ModelObject &rhs, bool copy_volumes) :
-    ModelBase(other), // copy the id
-    name(other.name),
-    input_file(other.input_file),
-    instances(),
-    volumes(),
-    config(other.config),
-    sla_support_points(other.sla_support_points),
-    layer_height_ranges(other.layer_height_ranges),
-    layer_height_profile(other.layer_height_profile),
-    layer_height_profile_valid(other.layer_height_profile_valid),
-    origin_translation(other.origin_translation),
-    m_bounding_box(other.m_bounding_box),
-    m_bounding_box_valid(other.m_bounding_box_valid),
     m_model(model)
 {
-    if (copy_volumes) {
+    this->assign(&rhs, copy_volumes);
-        this->volumes.reserve(other.volumes.size());
-        for (ModelVolume *model_volume : other.volumes)
-            this->add_volume(*model_volume);
-    }
-    this->instances.reserve(other.instances.size());
-    for (const ModelInstance *model_instance : other.instances)
-        this->add_instance(*model_instance);
 }
 
 ModelObject::~ModelObject()
@@ -522,6 +502,34 @@ ModelObject* ModelObject::clone(Model *parent)
     return new ModelObject(parent, *this, true);
 }
 
+ModelObject& ModelObject::assign(const ModelObject *rhs, bool copy_volumes)
+{ 
+    m_id                        = rhs->m_id;
+    name                        = rhs->name;
+    input_file                  = rhs->input_file;
+    config                      = rhs->config;
+    sla_support_points          = rhs->sla_support_points;
+    layer_height_ranges         = rhs->layer_height_ranges;
+    layer_height_profile        = rhs->layer_height_profile;
+    layer_height_profile_valid  = rhs->layer_height_profile_valid;
+    origin_translation          = rhs->origin_translation;
+    m_bounding_box              = rhs->m_bounding_box;
+    m_bounding_box_valid        = rhs->m_bounding_box_valid;
+
+    volumes.clear();
+    instances.clear();
+    if (copy_volumes) {
+        this->volumes.reserve(rhs->volumes.size());
+        for (ModelVolume *model_volume : rhs->volumes)
+            this->add_volume(*model_volume);
+        this->instances.reserve(rhs->instances.size());
+        for (const ModelInstance *model_instance : rhs->instances)
+            this->add_instance(*model_instance);
+    }
+
+    return *this;
+}
+
 ModelVolume* ModelObject::add_volume(const TriangleMesh &mesh)
 {
     ModelVolume* v = new ModelVolume(this, mesh);

src/libslic3r/Model.hpp

@@ -45,6 +45,8 @@ public:
     ModelID  id() const { return m_id; }
 
 protected:
+    // Constructor to be only called by derived classes.
+    ModelBase() {}
     ModelID  m_id = generate_new_id();
 
 private:
@@ -72,6 +74,8 @@ private:
     
     ModelMaterial(Model *model) : m_model(model) {}
     ModelMaterial(Model *model, const ModelMaterial &other) : attributes(other.attributes), config(other.config), m_model(model) {}
+    explicit ModelMaterial(ModelMaterial &rhs) = delete;
+    ModelMaterial& operator=(ModelMaterial &rhs) = delete;
 };
 
 // A printable object, possibly having multiple print volumes (each with its own set of parameters and materials),
@@ -112,6 +116,10 @@ public:
         when user expects that. */
     Vec3d                   origin_translation;
 
+    // Assign a ModelObject to this object while keeping the original pointer to the parent Model.
+	// Make a deep copy.
+	ModelObject&            assign(const ModelObject *rhs, bool copy_volumes = true);
+
     Model*                  get_model() const { return m_model; };
     
     ModelVolume*            add_volume(const TriangleMesh &mesh);
@@ -174,8 +182,10 @@ protected:
 
 private:
     ModelObject(Model *model) : layer_height_profile_valid(false), m_model(model), origin_translation(Vec3d::Zero()), m_bounding_box_valid(false) {}
-    ModelObject(Model *model, const ModelObject &other, bool copy_volumes = true);
+    ModelObject(Model *model, const ModelObject &rhs, bool copy_volumes = true);
+    explicit ModelObject(ModelObject &rhs) = delete;
     ~ModelObject();
+    ModelObject& operator=(ModelObject &rhs) = default;
 
     // Parent object, owning this ModelObject.
     Model                *m_model;
@@ -269,6 +279,9 @@ private:
         if (mesh.stl.stats.number_of_facets > 1)
             calculate_convex_hull();
     }
+
+    explicit ModelVolume(ModelVolume &rhs) = delete;
+    ModelVolume& operator=(ModelVolume &rhs) = delete;
 };
 
 // A single instance of a ModelObject.
@@ -363,8 +376,10 @@ private:
     ModelInstance(ModelObject *object, const ModelInstance &other) :
         m_rotation(other.m_rotation), m_scaling_factor(other.m_scaling_factor), m_offset(other.m_offset), object(object), print_volume_state(PVS_Inside) {}
 #endif // ENABLE_MIRROR
-};
 
+    explicit ModelInstance(ModelInstance &rhs) = delete;
+    ModelInstance& operator=(ModelInstance &rhs) = delete;
+};
 
 // The print bed content.
 // Description of a triangular model with multiple materials, multiple instances with various affine transformations

src/libslic3r/Print.cpp

@@ -889,8 +889,7 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
                 const_cast<PrintObjectStatus&>(*it).status = PrintObjectStatus::Deleted;
             }
             // Copy content of the ModelObject including its ID, reset the parent.
-            model_object = model_object_new;
+            model_object.assign(&model_object_new);
-            model_object.set_model(&m_model);
         } else if (support_blockers_differ || support_enforcers_differ) {
             // First stop background processing before shuffling or deleting the ModelVolumes in the ModelObject's list.
             m_cancel_callback();
@@ -982,8 +981,10 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
                     // The PrintObject already exists and the copies differ.
                     if ((*it_old)->print_object->copies().size() != new_instances.copies.size())
                         update_apply_status(this->invalidate_step(psWipeTower));
-                    update_apply_status(this->invalidate_step(psSkirt) || this->invalidate_step(psBrim) || this->invalidate_step(psGCodeExport));
+					if ((*it_old)->print_object->set_copies(new_instances.copies)) {
-                    (*it_old)->print_object->set_copies(new_instances.copies);
+						// Invalidated
+						update_apply_status(this->invalidate_step(psSkirt) || this->invalidate_step(psBrim) || this->invalidate_step(psGCodeExport));
+					}
 					print_objects_new.emplace_back((*it_old)->print_object);
 					const_cast<PrintObjectStatus*>(*it_old)->status = PrintObjectStatus::Reused;
 				}
@@ -1109,7 +1110,7 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
                     region_id = map_volume_to_region[volume_id];
                 // Assign volume to a region.
 				if (fresh) {
-					if (print_object.region_volumes.empty())
+					if (region_id >= print_object.region_volumes.size() || print_object.region_volumes[region_id].empty())
 						++ m_regions[region_id]->m_refcnt;
 					print_object.add_region_volume(region_id, volume_id);
 				}

src/libslic3r/PrintConfig.hpp

@@ -1044,10 +1044,15 @@ public:
     const ConfigDef*    def() const override { return &s_def; }
 
 private:
-    class PrintAndCLIConfigDef : public PrintConfigDef
+    class PrintAndCLIConfigDef : public ConfigDef
     {
     public:
-        PrintAndCLIConfigDef() { this->options.insert(cli_config_def.options.begin(), cli_config_def.options.end()); }
+        PrintAndCLIConfigDef() { 
+            this->options.insert(print_config_def.options.begin(), print_config_def.options.end());
+            this->options.insert(cli_config_def.options.begin(), cli_config_def.options.end());
+        }
+        // Do not release the default values, they are handled by print_config_def & cli_config_def.
+        ~PrintAndCLIConfigDef() { this->options.clear(); }
     };
     static PrintAndCLIConfigDef s_def;
 };

src/slic3r/GUI/GUI_App.cpp

@@ -56,7 +56,7 @@ static std::string libslic3r_translate_callback(const char *s) { return wxGetTra
 IMPLEMENT_APP(GUI_App)
 bool GUI_App::OnInit()
 {
-    SetAppName("Slic3rPE");
+    SetAppName("Slic3rPE-alpha");
     SetAppDisplayName("Slic3r Prusa Edition");
 
 //     Slic3r::debugf "wxWidgets version %s, Wx version %s\n", wxVERSION_STRING, wxVERSION;