An icon that displays a bullet, the name, and, if the container is
an instance of settable, its value.
Edward A. Lee, Steve Neuendorffer
$Id: ValueIcon.java 69607 2014-07-30 17:07:26Z cxh $
Ptolemy II 2.0
Yellow (eal)
Red (johnr)
The number of characters to display. This is an integer, with
default value 60.
The number of lines to display. This is an integer, with default
value 1.