FIX:make sort_volumes right

Jira: STUDIO-5645
Change-Id: If324c9115bfaaf0c1b7b4be7c7ee96ba6b8ac890

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -3766,6 +3766,9 @@ wxDataViewItemArray ObjectList::add_volumes_to_object_in_list(size_t obj_idx, st
         }
 
         int volume_idx{-1};
+        auto& ui_and_3d_volume_map = m_objects_model->get_ui_and_3d_volume_map();
+        ui_and_3d_volume_map.clear();
+        int ui_volume_idx = 0;
         for (const ModelVolume *volume : object->volumes) {
             ++volume_idx;
             if (object->is_cut() && volume->is_cut_connector())
@@ -3778,6 +3781,8 @@ wxDataViewItemArray ObjectList::add_volumes_to_object_in_list(size_t obj_idx, st
                 get_warning_icon_name(volume->mesh().stats()),
                 volume->config.has("extruder") ? volume->config.extruder() : 0,
                 false);
+            ui_and_3d_volume_map[ui_volume_idx] = volume_idx;
+            ui_volume_idx++;
             add_settings_item(vol_item, &volume->config.get());
 
             if (add_to_selection && add_to_selection(volume))
@@ -4495,10 +4500,12 @@ void ObjectList::update_selections()
                 assert(obj_idx >= 0 && vol_idx >= 0);
                 if (object(obj_idx)->volumes[vol_idx]->is_cut_connector())
                     sels.Add(m_objects_model->GetInfoItemByType(m_objects_model->GetItemById(obj_idx), InfoItemType::CutConnectors));
-                else
+                else {
+                    vol_idx = m_objects_model->get_real_volume_index_in_ui(vol_idx);
                     sels.Add(m_objects_model->GetItemByVolumeId(obj_idx, vol_idx));
                 }
             }
+        }
         m_selection_mode = smVolume; }
     }
     else if (selection.is_single_full_instance() || selection.is_multiple_full_instance())
@@ -4600,7 +4607,8 @@ void ObjectList::update_selections_on_canvas()
         const int obj_idx = m_objects_model->GetObjectIdByItem(item);
 
         if (type == itVolume) {
-            const int vol_idx = m_objects_model->GetVolumeIdByItem(item);
+            int vol_idx = m_objects_model->GetVolumeIdByItem(item);
+            vol_idx     = m_objects_model->get_real_volume_index_in_3d(vol_idx);
             std::vector<unsigned int> idxs = selection.get_volume_idxs_from_volume(obj_idx, std::max(instance_idx, 0), vol_idx);
             volume_idxs.insert(volume_idxs.end(), idxs.begin(), idxs.end());
         }
@@ -5814,22 +5822,8 @@ wxDataViewItemArray ObjectList::reorder_volumes_and_get_selection(int obj_idx, s
         return items;
 
     object->sort_volumes(true);
-
+    update_info_items(obj_idx, nullptr, true);
-    wxDataViewItem object_item = m_objects_model->GetItemById(obj_idx);
+    items = add_volumes_to_object_in_list(obj_idx, std::move(add_to_selection));
-    m_objects_model->DeleteVolumeChildren(object_item);
-
-    for (const ModelVolume* volume : object->volumes) {
-        wxDataViewItem vol_item = m_objects_model->AddVolumeChild(object_item, from_u8(volume->name),
-            volume->type(),
-            get_warning_icon_name(volume->mesh().stats()),
-            volume->config.has("extruder") ? volume->config.extruder() : 0,
-            false);
-        // add settings to the part, if it has those
-        add_settings_item(vol_item, &volume->config.get());
-
-        if (add_to_selection && add_to_selection(volume))
-            items.Add(vol_item);
-    }
 
     changed_object(obj_idx);
     return items;

src/slic3r/GUI/ObjectDataViewModel.hpp

@@ -332,13 +332,30 @@ class ObjectDataViewModel :public wxDataViewModel
     wxDataViewCtrl*                             m_ctrl { nullptr };
     std::vector<std::pair<ObjectDataViewModelNode*, wxString>> assembly_name_list;
     std::vector<std::pair<ObjectDataViewModelNode*, wxString>> search_found_list;
+    std::map<int, int>                          m_ui_and_3d_volume_map;
 
 public:
     ObjectDataViewModel();
     ~ObjectDataViewModel();
 
     void Init();
-
+    std::map<int, int> &get_ui_and_3d_volume_map() { return m_ui_and_3d_volume_map; }
+    int                 get_real_volume_index_in_3d(int ui_value)
+    {
+        if (m_ui_and_3d_volume_map.find(ui_value) != m_ui_and_3d_volume_map.end()) { 
+            return m_ui_and_3d_volume_map[ui_value];
+        }
+        return ui_value;
+    }
+    int get_real_volume_index_in_ui(int _3d_value)
+    {
+        for (auto item: m_ui_and_3d_volume_map) {
+            if (item.second == _3d_value) {
+                return item.first;
+            }
+        }
+        return _3d_value;
+    }
     wxDataViewItem AddPlate(PartPlate* part_plate, wxString name = wxEmptyString, bool refresh = true);
     wxDataViewItem AddObject(ModelObject* model_object, std::string warning_bitmap, bool has_lock = false, bool refresh = true);
     wxDataViewItem AddVolumeChild(  const wxDataViewItem &parent_item,