fixed some errors on duplications of scene

src/document/UBDocumentController.cpp

@@ -534,21 +534,6 @@ void UBDocumentController::openSelectedItem()
     QApplication::restoreOverrideCursor();
 }
 
-
-void UBDocumentController::duplicateScenes(UBDocumentProxy* proxy, QList<int> scenesIndex)
-{
-	if(scenesIndex.count()){
-		int offset = 0;
-        foreach (int eachSceneIndex, scenesIndex){
-			UBPersistenceManager::persistenceManager()->duplicateDocumentScene(proxy, eachSceneIndex + offset);
-            mDocumentThumbs.insert(eachSceneIndex + offset, mDocumentThumbs.at(eachSceneIndex + offset));
-            UBApplication::boardController->setActiveDocumentScene(proxy,eachSceneIndex+offset+1);
-            offset++;
-        }
-	}
-
-}
-
 void UBDocumentController::duplicateSelectedItem()
 {
     if (UBApplication::applicationController->displayMode() != UBApplicationController::Document)

src/document/UBDocumentController.h

@@ -50,8 +50,6 @@ class UBDocumentController : public QObject
         UBDocumentProxy* getCurrentDocument() { return mCurrentDocument; };
         void deletePages(QList<QGraphicsItem*> itemsToDelete);
         int getSelectedItemIndex();
-        void duplicateScenes(UBDocumentProxy* proxy, QList<int> scenesIndex);
-
 
     signals:
         void refreshThumbnails();

src/gui/UBThumbnailWidget.cpp

@@ -870,10 +870,7 @@ void UBSceneThumbnailNavigPixmap::deletePage()
 
 void UBSceneThumbnailNavigPixmap::duplicatePage()
 {
-    QList<int> itemsToDelete;
-    itemsToDelete << sceneIndex();
-
-	UBApplication::documentController->duplicateScenes(proxy(),itemsToDelete);
+	UBApplication::boardController->duplicateScene();
 }
 
 void UBSceneThumbnailNavigPixmap::moveUpPage()