Is it possible to use a non-embedded fallback font when using an embedded font with AS3 TextField?

I have an embedded font in my AIR/AS3 app that lacks support for most international characters. Using TextField and StyleSheet with the font-family property, I assumed I would simply need to do this:

font-family: Interstate-Regular, _sans;

This works if TextField.embedFonts = false; but then Interstate-Regular isn't embedded for users that don't have it on their system. With TextField.embedFonts = true; the text doesn't even 开发者_开发知识库show up. Is there a way to embed Interstate-Regular and still use _sans as a fallback system font without embedding it as well?

Flash Text Engine has this "fallback" feature, but it is slower than regular TextField, and more difficult to use it.

Link to the Adobe Manual

You could implement a switch in a custom FontManagement class , if a language is not supported by your main font , revert to a non embedded font. To achieve this , you could use this FontManagement class as a centralized point where to format your TextFields. This could be achieved by creating a public static function which would return a TextField with the relevant format.

//where you need to format a TextField
var params:Object = {color:0xffffff , size:12, supported:false , etc...};
var tf:Texfield = FontManagement.formatTextField(tf , params );

public class FontManagement
{
    //A basic example 
    public static function formatTextField( tf:TextField , params:Object ):TextField
    {
        //since this is a static function , the Boolean is passed as an argument
        //but there are other ways to set it, depending on where in your app
        //the language is identified
        if( params.supported )
           tf.embedFonts = true;
        else
           tf.embedFonts = false;

        //here the rest of your formatting code
        return tf;
    }
}