Half dashed half solid line
 

So I have to do some Oracle style ERDs (example here [url]http://www.dbforums.com/attachments/oracle/5550d1134388210-erd-erd.jpg[/url]) and I need to make some lines that are solid on one half and dashed on the other. I know I can do this by drawing two lines and connecting them at endpoints, but I'm kind of hoping there's a better way to do this because a) I'm lazy and b) It results in these ugly hard corners that don't scale well when moving connected objects.