From aaa09c992141bc62bf838932b605400f6c7c26b5 Mon Sep 17 00:00:00 2001
From: Claudio Valerio <vitonightfly@gmail.com>
Date: Fri, 25 Apr 2014 18:45:47 +0200
Subject: [PATCH] document removed if it contains only <<structural>>
 QGraphicsItems

---
 src/core/UBPersistenceManager.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/core/UBPersistenceManager.cpp b/src/core/UBPersistenceManager.cpp
index 94db4c2a..441c34ef 100644
--- a/src/core/UBPersistenceManager.cpp
+++ b/src/core/UBPersistenceManager.cpp
@@ -926,6 +926,24 @@ bool UBPersistenceManager::isEmpty(UBDocumentProxy* pDocumentProxy)
             mSceneCache.removeScene(pDocumentProxy,0);
             delete theSoleScene;
         }
+        else{
+            //the scene can contain Delegate buttons and the selection frame
+            // but this doesn't means that there is something useful on the frame
+            bool usefulItemFound = false;
+            foreach(QGraphicsItem* eachItem, theSoleScene->getFastAccessItems()){
+                if(eachItem->type() > QGraphicsItem::UserType
+                        && eachItem->type() != UBGraphicsItemType::DelegateButtonType
+                        && eachItem->type() != UBGraphicsItemType::SelectionFrameType){
+                    usefulItemFound = true;
+                    break;
+                }
+            }
+            if(!usefulItemFound){
+                mSceneCache.removeScene(pDocumentProxy,0);
+                delete theSoleScene;
+                empty = true;
+            }
+        }
     }
     else
     {