Finding the total number of lines can be done (http://blog.flexexamples.com/2010/01/13/determining-the-number-of-lines-in-a-spark-richedi tabletext-control-in-flex-4/), but is it possible to find the number of lines of any arbitrary paragraphs in a Spark TextArea? I've looked around and couldn't figure it out. Thanks in advance for any pointers!
The Spark text components are built on top of the new Adobe Text Layout Framework (TLF). I'm not sure about finding the number of lines on a paragraph level, but you could try asking on the TLF forums at http://forums.adobe.com/community/opensource/tlf?view=discussions if you dont get any responses here.