handle dragging not-existing records

apps/opencs/model/world/columnbase.hpp

@@ -27,6 +27,7 @@ namespace CSMWorld
         enum Display
         {
             Display_None, //Do not use
+            Display_Cell_Missing, //Do not used, actually. It is here to simplify dragging non-existed cells handling
             Display_String,
             Display_LongString,
 

apps/opencs/model/world/tablemimedata.cpp

@@ -33,7 +33,7 @@ std::string CSMWorld::TableMimeData::getIcon() const
 {
     if (mUniversalId.empty())
     {
-        throw ("TableMimeData holds no UniversalId");
+        return "";
     }
 
     std::string tmpIcon;
@@ -360,6 +360,8 @@ CSMWorld::UniversalId::Type CSMWorld::TableMimeData::convertEnums (CSMWorld::Col
         case CSMWorld::ColumnBase::Display_Script:
             return CSMWorld::UniversalId::Type_Script;
 
+        case CSMWorld::ColumnBase::Display_Cell_Missing:
+            return CSMWorld::UniversalId::Type_Cell_Missing; //this one actually never happens, since there is no display_Cell_missing column anywhere.
 
         default:
             return CSMWorld::UniversalId::Type_None;
@@ -375,6 +377,10 @@ CSMWorld::ColumnBase::Display CSMWorld::TableMimeData::convertEnums (CSMWorld::U
             return CSMWorld::ColumnBase::Display_Race;
 
 
+        case CSMWorld::UniversalId::Type_Cell_Missing:
+            return CSMWorld::ColumnBase::Display_Cell_Missing;
+
+
         case CSMWorld::UniversalId::Type_Skill:
             return CSMWorld::ColumnBase::Display_Skill;
 

apps/opencs/model/world/universalid.cpp

@@ -64,6 +64,7 @@ namespace
         { CSMWorld::UniversalId::Class_Record, CSMWorld::UniversalId::Type_TopicInfo, "TopicInfo", 0 },
         { CSMWorld::UniversalId::Class_Record, CSMWorld::UniversalId::Type_JournalInfo, "JournalInfo", 0 },
         { CSMWorld::UniversalId::Class_Record, CSMWorld::UniversalId::Type_Cell, "Cell", ":./cell.png" },
+        { CSMWorld::UniversalId::Class_Record, CSMWorld::UniversalId::Type_Cell_Missing, "Cell", ":./cell.png" },
         { CSMWorld::UniversalId::Class_Record, CSMWorld::UniversalId::Type_Referenceable, "Referenceables", 0 },
         { CSMWorld::UniversalId::Class_RefRecord, CSMWorld::UniversalId::Type_Activator, "Activator", ":./activator.png" },
         { CSMWorld::UniversalId::Class_RefRecord, CSMWorld::UniversalId::Type_Potion, "Potion", ":./potion.png" },

apps/opencs/model/world/universalid.hpp

@@ -60,6 +60,7 @@ namespace CSMWorld
                 Type_Spell,
                 Type_Cells,
                 Type_Cell,
+                Type_Cell_Missing, //For cells that does not exist yet.
                 Type_Referenceables,
                 Type_Referenceable,
                 Type_Activator,

apps/opencs/view/world/regionmap.cpp

@@ -353,13 +353,21 @@ void CSVWorld::RegionMap::mouseMoveEvent (QMouseEvent* event)
 
 std::vector< CSMWorld::UniversalId > CSVWorld::RegionMap::getDragedRecords() const
 {
-    QModelIndexList selected = getSelectedCells();
+    QModelIndexList selected(getSelectedCells(true, false));
     std::vector<CSMWorld::UniversalId> ids;
     foreach (QModelIndex it, selected)
     {
         ids.push_back(
-            CSMWorld::UniversalId
-                (CSMWorld::UniversalId::Type_Cell,
+            CSMWorld::UniversalId(
+                CSMWorld::UniversalId::Type_Cell,
+                model()->data(it, CSMWorld::RegionMap::Role_CellId).toString().toUtf8().constData()));
+    }
+    selected = getSelectedCells(false, true);
+    foreach (QModelIndex it, selected)
+    {
+        ids.push_back(
+            CSMWorld::UniversalId(
+                CSMWorld::UniversalId::Type_Cell_Missing,
                 model()->data(it, CSMWorld::RegionMap::Role_CellId).toString().toUtf8().constData()));
     }
     return ids;