[dasher] TwoButtonDynamicFilter: repaint decorations when LP_TWO_BUTTON_OFFSET changes

[Patrick Welche <pwelche src gnome org>]

commit 4aa86f892712994f00a5a48ca080855da6bb9866
Author: Alan Lawrence <acl33 inf phy cam ac uk>
Date:   Wed Nov 17 14:24:46 2010 +0000

    TwoButtonDynamicFilter: repaint decorations when LP_TWO_BUTTON_OFFSET changes

 Src/DasherCore/TwoButtonDynamicFilter.cpp |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/Src/DasherCore/TwoButtonDynamicFilter.cpp b/Src/DasherCore/TwoButtonDynamicFilter.cpp
index 89a7f0c..8f49e88 100644
--- a/Src/DasherCore/TwoButtonDynamicFilter.cpp
+++ b/Src/DasherCore/TwoButtonDynamicFilter.cpp
@@ -205,7 +205,10 @@ void CTwoButtonDynamicFilter::HandleEvent(Dasher::CEvent *pEvent)
       {
         double dMaxRate = GetLongParameter(LP_MAX_BITRATE) * GetLongParameter(LP_BOOSTFACTOR) / 10000.0;
         m_dLagMul = exp(dMaxRate * GetLongParameter(LP_DYNAMIC_BUTTON_LAG)/1000.0);
+        //and fallthrough again:
       }
+    case LP_TWO_BUTTON_OFFSET:
+        m_bDecorationChanged = true;
     }
   }
 }