Applied #10828 (Hourglass in wxDocManager::OnPreview)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@62079 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/docview.cpp

@@ -1026,6 +1026,7 @@ void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
 {
 #if wxUSE_PRINTING_ARCHITECTURE
+    wxBusyCursor busy;
     wxView *view = GetCurrentView();
     if (!view)
         return;