Added wxHtmlFilter

Also some minor tweaks and additions


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@17422 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/controls2.i

@@ -700,6 +700,14 @@ public:
         '''get the currently focused item or -1 if none'''
         return self.GetNextItem(-1, wxLIST_NEXT_ALL, wxLIST_STATE_FOCUSED)
 
+    def GetFirstSelected(self, item):
+        '''return first selected item, or -1 when none'''
+        return self.GetNextSelected(-1)
+
+    def GetNextSelected(self, item):
+        '''return subsequent selected items, or -1 when no more'''
+        return self.GetNextItem(item, wxLIST_NEXT_ALL, wxLIST_STATE_SELECTED)
+
     def IsSelected(self, idx):
         '''return TRUE if the item is selected'''
         return self.GetItemState(idx, wxLIST_STATE_SELECTED) != 0