<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi, Looking at these two classes, it seems BoxedMorph has too much responsibilities and PlacedMorph not enough. Indeed, PlacedMorph has BoxedMorph as its only heir. Moreover, there is no instance of PlacedMorph. I am wondering if moving the extent attribute of BoxedMorph to PlacedMorph would be useful. I have many situation where I am interested by a morph with extent and location but without interest to color, border, and friends. But I find myself in the situation I have to subclass BoxedMorph ending with a class with the unnecessary attributes color, border, etc. PlacedMorph is the minimum the user can add to a layout morph, because of that PlacedMorph have method with extent consideration. So it is a bit odd. Hilaire <pre class="moz-signature" cols="72">-- GNU Dr. Geo <a class="moz-txt-link-freetext" href="http://gnu.org/s/dr-geo/">http://gnu.org/s/dr-geo/</a> <a class="moz-txt-link-freetext" href="http://gnu-drgeo.blogspot.com/">http://gnu-drgeo.blogspot.com/</a></pre> </body> </html>