@Override
    public void write(JmeExporter ex) throws IOException {
        OutputCapsule oc = ex.getCapsule(this);
        oc.write(charSet, "charSet", null);
        oc.write(pages, "pages", null);
        oc.write(rightToLeft, "rightToLeft", false);
        oc.write(glyphParser, "glyphParser", null);
    }
Gets the line height of a StringBlock.

@param sb the block to measure (not null, unaffected)
@return the line height
jme3-core/src/main/java/com/jme3/font/BitmapFont.java