add warning dialog when converting with compatible naming

Author: vkovec

Assets/FbxExporters/Editor/ConvertToPrefabEditorWindow.cs

@@ -105,6 +105,24 @@ protected override bool Export ()
                     return false;
                 }
 
+                if (SettingsObject.UseMayaCompatibleNames && SettingsObject.AllowSceneModification)
+                {
+                    // give a warning dialog that indicates that names in the scene may change
+                    int result = UnityEditor.EditorUtility.DisplayDialogComplex(
+                                string.Format("{0} Warning", ModelExporter.PACKAGE_UI_NAME),
+                                            "Names of objects in the hierarchy may change with the Compatible Naming option turned on",
+                                            "OK", "Convert Without Compatible Naming", "Cancel");
+                    if (result == 1)
+                    {
+                        // turn compatible naming off
+                        SettingsObject.SetUseMayaCompatibleNames(false);
+                    }
+                    else if (result == 2)
+                    {
+                        return false;
+                    }
+                }
+
                 if (ToExport.Length == 1) {
                     var go = ModelExporter.GetGameObject (ToExport [0]);