[9fans] /n/sources/contrib/art.tgz

[andrey mirtchovski <mirtchov@cpsc.ucalgary.ca>]

Following a suggestion by Steve Simon I've made a few changes to the
art(1) code from /n/sources/contrib/.  The changes include correct
background drawing, fixed menu bar and menus, and clearing the screen
behind drawn objects such as mouse pointer and line drawings.

Here's a brief description of art:

          Art is an interactive program to create precise line-art in
          the style of pic(1). It is mostly mouse-operated, with a few
          commands entered from the keyboard.  It divides its window
          into four areas: a menu bar at the top, a one-line rectangle
          immediately below for echoing typed-in characters, another
          one-line rectangle below that for printing messages, and a
          large area at the bottom for displaying the drawing.  The -b
          option displays the specified picture (in the format of
          picfile(9.6)) as a background for the drawing.

I can't put the modified source on /n/sources, so I've made a small
page for it, until those who can merge the changes do so:

	http://pages.cpsc.ucalgary.ca/~mirtchov/p9/art/

The improvements are only marginal.  Art would require a fair amount
of work to make it worthy of permanent inclusion in the Plan 9
distribution.

andrey