added SetLabelText() and EscapeMnemonics()

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/ctrlcmn.cpp

@@ -159,6 +159,14 @@ wxString wxControlBase::RemoveMnemonics(const wxString& str)
     return wxStripMenuCodes(str, wxStrip_Mnemonics);
 }
 
+/* static */
+wxString wxControlBase::EscapeMnemonics(const wxString& text)
+{
+    wxString label(text);
+    label.Replace("&", "&&");
+    return label;
+}
+
 /* static */
 int wxControlBase::FindAccelIndex(const wxString& label, wxString *labelOnly)
 {