Translate control view instead of scrolling separately

src/board/UBBoardController.cpp

@@ -646,9 +646,10 @@ void UBBoardController::zoom(const qreal ratio, QPointF scenePoint)
 
 void UBBoardController::handScroll(qreal dx, qreal dy)
 {
-    mControlView->horizontalScrollBar()->setValue(mControlView->horizontalScrollBar()->value() - dx);
-    mControlView->verticalScrollBar()->setValue(mControlView->verticalScrollBar()->value() - dy);
-
+//    mControlView->horizontalScrollBar()->setValue(mControlView->horizontalScrollBar()->value() - dx);
+//    mControlView->verticalScrollBar()->setValue(mControlView->verticalScrollBar()->value() - dy);
+    mControlView->translate(dx, dy);
+	
     UBApplication::applicationController->adjustDisplayView();
 
     emit controlViewportChanged();
@@ -1557,7 +1558,7 @@ void UBBoardController::stylusToolChanged(int tool)
         if(eTool != UBStylusTool::Selector && eTool != UBStylusTool::Text)
         {
             if(mPaletteManager->mKeyboardPalette->m_isVisible)
-                UBApplication::mainWindow->actionVirtualKeyboard->activate(QAction::Trigger);
+                UBApplication::mainWindow->actionVirtualKeyboard->activate(QAction::Trigger);
         }
     }