private void load(){
if(! isMetricsLoaded){
isMetricsLoaded = true;
try{
FontReader reader = new FontReader(metricsFileName);
reader.useKerning(useKerning);
reader.setFontEmbedPath(fontEmbedPath);
realFont = reader.getFont();
if(realFont instanceof FontDescriptor){
realFontDescriptor = (FontDescriptor) realFont;
}