From 832ebaac6c071d3a561f7f460c631f1ed309d35a Mon Sep 17 00:00:00 2001
From: Claudio Valerio <claudio.valerio@oe-f.org>
Date: Tue, 4 Mar 2014 11:39:20 +0100
Subject: [PATCH] using isActive instead of couting the viewer to know if the
 scene can be removed

---
 src/core/UBSceneCache.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/UBSceneCache.cpp b/src/core/UBSceneCache.cpp
index db1416fb..7b5d472e 100644
--- a/src/core/UBSceneCache.cpp
+++ b/src/core/UBSceneCache.cpp
@@ -128,7 +128,7 @@ void UBSceneCache::removeScene(UBDocumentProxy* proxy, int pageIndex)
 {
     UBGraphicsScene* scene = value(proxy, pageIndex);
 
-    if (scene && scene->views().size() == 0)
+    if (scene && !scene->isActive())
     {
         UBSceneCacheID key(proxy, pageIndex);
         int count = QHash<UBSceneCacheID, UBGraphicsScene*>::remove(key);