/**
* Gets the ascentline for the text (i.e. the line that represents the topmost extent that a string of the current font could have)
* This value includes the Rise of the draw operation - see {@link #getRise()} for the amount added by Rise
* @return the ascentline line segment
* @since 5.0.2
*/
virtual public LineSegment GetAscentLine()
{
float ascent = gs.GetFont().GetFontDescriptor(BaseFont.ASCENT, gs.GetFontSize());
return(GetUnscaledBaselineWithOffset(ascent + gs.rise).TransformBy(textToUserSpaceTransformMatrix));
}