package flash.text.engine; extern final class FontMetrics { var emBox : flash.geom.Rectangle; var lineGap : Float; var strikethroughOffset : Float; var strikethroughThickness : Float; var subscriptOffset : Float; var subscriptScale : Float; var superscriptOffset : Float; var superscriptScale : Float; var underlineOffset : Float; var underlineThickness : Float; function new(emBox : flash.geom.Rectangle, strikethroughOffset : Float, strikethroughThickness : Float, underlineOffset : Float, underlineThickness : Float, subscriptOffset : Float, subscriptScale : Float, superscriptOffset : Float, superscriptScale : Float, lineGap : Float = 0) : Void; }