fixed some bad behaviors on thumbnail views + deactivated moveDown and moveUp icons

src/gui/UBBoardThumbnailsView.cpp

@@ -186,12 +186,17 @@ void UBBoardThumbnailsView::mousePressEvent(QMouseEvent *event)
 {    
     mLongPressTimer.start();
     mLastPressedMousePos = event->pos();
+
+    UBDraggableThumbnailView* item = dynamic_cast<UBDraggableThumbnailView*>(itemAt(event->pos()));
+
+    if (item)
+        UBApplication::boardController->setActiveDocumentScene(item->sceneIndex());
+
     QGraphicsView::mousePressEvent(event);
 }
 
 void UBBoardThumbnailsView::mouseMoveEvent(QMouseEvent *event)
 {
-    mLastPressedMousePos = event->pos();
     QGraphicsView::mouseMoveEvent(event);
 }
 

src/gui/UBThumbnailWidget.cpp

@@ -836,6 +836,7 @@ void UBDraggableThumbnail::paint(QPainter *painter, const QStyleOptionGraphicsIt
 
         draw(painter, *getIcon("duplicate"));
 
+        /*
         if(movableUp())
             draw(painter, *getIcon("moveUp"));
         else
@@ -845,6 +846,7 @@ void UBDraggableThumbnail::paint(QPainter *painter, const QStyleOptionGraphicsIt
             draw(painter, *getIcon("moveDown"));
         else
             draw(painter, *getIcon("moveDownDisabled"));
+        */
 
     }
 }
@@ -888,11 +890,6 @@ void UBDraggableThumbnail::moveDownPage()
 }
 
 void UBDraggableThumbnail::mousePressEvent(QGraphicsSceneMouseEvent *event)
-{
-    event->accept();
-}
-
-void UBDraggableThumbnail::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
     QPointF p = event->pos();
 
@@ -913,6 +910,11 @@ void UBDraggableThumbnail::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
     event->accept();
 }
 
+void UBDraggableThumbnail::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    event->accept();
+}
+
 
 void UBDraggableThumbnailView::updatePos(qreal width, qreal height)
 {