don't change locale in XRC GetFloat() method, change the strings to use the current locale decimal point separator instead (patch 1783849)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48620 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/xrc/xmlres.cpp

@@ -960,20 +960,20 @@ long wxXmlResourceHandler::GetLong(const wxString& param, long defaultv)
 
 float wxXmlResourceHandler::GetFloat(const wxString& param, float defaultv)
 {
+    wxString str = GetParamValue(param);
+
+    // strings in XRC always use C locale but wxString::ToDouble() uses the
+    // current one, so transform the string to it supposing that the only
+    // difference between them is the decimal separator
+    //
+    // TODO: use wxString::ToCDouble() when we have it
+    str.Replace(wxT("."), wxLocale::GetInfo(wxLOCALE_DECIMAL_POINT,
+                                            wxLOCALE_CAT_NUMBER));
+
     double value;
-    wxString str1 = GetParamValue(param);
-
-#ifndef __WXWINCE__
-    const char *prevlocale = setlocale(LC_NUMERIC, "C");
-#endif
-
-    if (!str1.ToDouble(&value))
+    if (!str.ToDouble(&value))
         value = defaultv;
 
-#ifndef __WXWINCE__
-    setlocale(LC_NUMERIC, prevlocale);
-#endif
-
     return wx_truncate_cast(float, value);
 }