MGR: clear notices display when selecting a different host to force display of new host's notices

svn path=/trunk/boinc/; revision=22105

checkin_notes

@@ -5736,3 +5736,11 @@ Charlie 3 Aug 2010
      mac_build/
         boinc.xcodeproj/
             project.pbxproj
+
+Charlie 3 Aug 2010
+    - MGR: clear notices display when selecting a different host to force display 
+        of new host's notices.
+
+    clientgui/
+        NoticeListCtrl.cpp
+        ViewNotices.cpp

clientgui/NoticeListCtrl.cpp

@@ -593,8 +593,11 @@ bool CNoticeListCtrl::UpdateUI()
     wxASSERT(pDoc);
     wxASSERT(wxDynamicCast(pDoc, CMainDocument));
 
-    if (pDoc->GetNoticeCount() < 0) return true;
-
+    if (pDoc->GetNoticeCount() < 0) {
+        SetItemCount(0);
+        return true;
+    }
+    
     if (
         ((int)GetItemCount() != pDoc->GetNoticeCount()) ||
         pDoc->notices.complete

clientgui/ViewNotices.cpp

@@ -134,6 +134,8 @@ void CViewNotices::OnListRender(wxTimerEvent& WXUNUSED(event)) {
     wxLogTrace(wxT("Function Start/End"), wxT("CViewNotices::OnListRender - Function Begin"));
 
     static bool s_bInProgress = false;
+    static wxString strLastMachineName = wxEmptyString;
+    wxString strNewMachineName = wxEmptyString;
     CMainDocument* pDoc = wxGetApp().GetDocument();
 
     wxASSERT(pDoc);
@@ -143,6 +145,14 @@ void CViewNotices::OnListRender(wxTimerEvent& WXUNUSED(event)) {
     if (s_bInProgress) return;
     s_bInProgress = true;
 
+    if (pDoc->IsConnected()) {
+        pDoc->GetConnectedComputerName(strNewMachineName);
+        if (strLastMachineName != strNewMachineName) {
+            strLastMachineName = strNewMachineName;
+            m_pHtmlListPane->Clear();
+        }
+    }
+
     m_pHtmlListPane->Freeze();
     m_pHtmlListPane->UpdateUI();
     m_pHtmlListPane->Thaw();