Nothing in the codebase actually listens to this signal, looks a bit vestigial.
---
 scrollMenuList.cpp |    8 --------
 scrollMenuList.h   |    1 -
 2 files changed, 0 insertions(+), 9 deletions(-)

diff --git a/scrollMenuList.cpp b/scrollMenuList.cpp
index 5ce95cb..f2d0f1e 100644
--- a/scrollMenuList.cpp
+++ b/scrollMenuList.cpp
@@ -284,10 +284,6 @@ void ScrollMenuList::moveItemStep(qreal py)
         setCurrectItem(p_widgetList.at(newItemIndex));
 
     }
-
-    qreal volume = (ITEMY(ctridx) - p_widgetList.at(0)->pos().y()) / 
LAUNCH_ITEM_GAP;
-
-    emit rotateVolume(-volume);
 }
 
 void ScrollMenuList::adjustCurrectItemPos()
@@ -326,10 +322,6 @@ void ScrollMenuList::adjustCurrectItemPos()
         qreal y = p_widgetList.at(i)->y()+py;
         p_widgetList.at(i)->setPos(XfromY(y), y);
     }
-
-    qreal volume = (ITEMY(ctridx) - p_widgetList.at(0)->y()) / LAUNCH_ITEM_GAP;
-
-    emit rotateVolume(-volume);
 }
 
 void ScrollMenuList::mousePressEvent(QGraphicsSceneMouseEvent *event)
diff --git a/scrollMenuList.h b/scrollMenuList.h
index fc83e24..bb3acce 100644
--- a/scrollMenuList.h
+++ b/scrollMenuList.h
@@ -67,7 +67,6 @@ signals:
     void itemRightClicked(int,QString);
     void itemChanged(int,QString);
     void itemScrolled(int);
-    void rotateVolume(qreal);
 
 private:
     QRect rect;
-- 
1.7.0.4

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