Manager: Fix crash bug in wxPieCtrl.

svn path=/trunk/boinc/; revision=12719

checkin_notes

@@ -5189,11 +5189,14 @@ David  22 May 2007
 		graphics2_win.C
 
 Charlie 22 May 2007
+    - Manager: Fix crash bug in wxPieCtrl.
     - Mac: Add list control sources back into XCode Project 
         (ViewTransfers.cpp,.h, ViewWork.cpp,.h,ViewProjects.cpp,.h)
     - Mac: Revert XCode project, build scripts and build instructions to use 
         wxMac-2.6.3 as a temporary workaround to SimpleGUI drawing bug.  
         
+    clientgui/
+        wxPieCtrl.cpp
     mac_build/
         buildWxMac.sh
         HowToBuildBOINC_XCode.rtf

clientgui/common/wxPieCtrl.cpp

@@ -176,6 +176,8 @@ void wxPieCtrl::GetPartAngles(wxArrayDouble & angles)
 	{
 		total += m_Series[i].GetValue();
 	}
+        if (total == 0.0)
+            return;
 	double current(0);
 	angles.Add(current);
 	for(i = 0; i < m_Series.Count(); i++)