Don't render TextField text over it's extents in verticald direction
Don't render TextField text over it's extents in verticald direction

Also limit rendering of lines based on the invalid area

freedesktop-unofficial-mirror/swfdec__swfdec,freedesktop-unofficial-mirror/swfdec__swfdec,mltframework/swfdec,mltframework/swfdec,freedesktop-unofficial-mirror/swfdec__swfdec