fixed the problem with the ampersand [mis]handling in the generic wxMessageDialog

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11853 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/dlgcmn.cpp

@@ -76,10 +76,11 @@ wxSizer *wxDialogBase::CreateTextSizer( const wxString &message )
     GetTextExtent(_T("H"), (int*)NULL, &y, (int*)NULL, (int*)NULL, &font);
 
     wxString line;
-    for (size_t pos = 0; pos < message.Len(); pos++)
+    for ( size_t pos = 0; pos < message.length(); pos++ )
     {
-        if (message[pos] == wxT('\n'))
+        switch ( message[pos] )
         {
+            case _T('\n'):
                 if (!line.IsEmpty())
                 {
                     wxStaticText *s1 = new wxStaticText( this, -1, line );
@@ -90,9 +91,18 @@ wxSizer *wxDialogBase::CreateTextSizer( const wxString &message )
                 {
                     box->Add( 5, y );
                 }
-        }
-        else
-        {
+                break;
+
+            case _T('&'):
+                // this is used as accel mnemonic prefix in the wxWindows
+                // controls but in the static messages created by
+                // CreateTextSizer() (used by wxMessageBox, for example), we
+                // don't want this special meaning, so we need to quote it
+                line += _T('&');
+
+                // fall through to add it normally too
+
+            default:
                 line += message[pos];
         }
     }