Thanks -- I'm glad you appreciate it! I wrote it as a programming example for The NeWS Toolkit (TnT 2.0), which was an OPEN LOOK user interface toolkit written in Sun's NeWS, a multithreaded object oriented dialect of PostScript. NeWS was a network extensible window system developed by James Gosling, after he made Emacs and before he made Java.

Ben Stoltz came up with the idea for a "tatool" gui interface for ordering pizzas from Tony & Albas pizzaria down the road in Mountain View, which he implemented in XView using DevGUIde (Sun's GUI builder tool). It inspired me to write Pizzatool for TnT in PostScript by hand -- I remember staying up late at night writing snippets of PostScript code for each of the different pizza toppings!

My initial version would draw a preview of the pizza on the screen, and then fax the image over to the pizza parlor, which confused them a lot because they couldn't tell which ingredients I wanted by looking at the black and white halftone screen printed pizza picture. So the next version just printed text describing the ingredients and delivery instructions, which took a lot less time to fax and was a lot more readable than a halftone image.

There was a bit of a controversy internally at Sun about releasing and supporting the source code, which toolkit to use (there were a lot of politics surrounding that at the time), and unintentionally revealing Sun's secret multimedia pizza faxing strategy to the press. But I wrote a manual entry, disabled the email-to-fax feature, replaced it with a menacing pop-up notification that threatened to hold your pizza hostage until you payed your tab, and managed to ship it in Solaris/SVR4 as an OpenWindows/NeWS demo.

Andy Bechtolsheim used it as an example of Sun's multimedia strategy in a SunWorld interview, and Unix Toady wrote an article about it, so the fallout wasn't as bad as some people were afraid of.

http://www.donhopkins.com/home/archive/NeWS/pizzatool-mail.t...

The idea was to test out and demonstrate how to program many of the dynamic user interface widgets, menus, windows, and drag and drop techniques in TNT 2.0. For example, it forked off light weight threads to draw all your pizza toppings at once, and you could spin the pizza to "cook" it by rotating the pixels repeatedly, then drag and drop an image into the pizza to customize it! It could even interoperate with another demo called "RasterRap". Here's a video that demonstrates spinning pizzas and dragging and dropping images from RasterRap into PizzaTool, which I recorded at the Exploratorium years ago (PizzaTool demo starts at 21:40, and the white and red pizzatool icon is visible at 13:00 -- it looks like a pizza box):

http://donhopkins.com/home/movies/HyperLookDemo.mov

Demonstration of SimCity running under the HyperLook user interface development system, based on NeWS PostScript. Includes a demonstration of editing HyperLook graphics and user interfaces, the HyperLook Cellular Automata Machine, and the HyperLook Happy Tool. Also shows The NeWS Toolkit applications PizzaTool and RasterRap. HyperLook developed by Arthur van Hoff and Don Hopkins at the Turing Institute. SimCity ported to Unix and HyperLook by Don Hopkins. HyperLook Cellular Automata Machine, Happy Tool, The NeWS Toolkit, PizzaTool and Raster Rap developed by Don Hopkins. Demonstration, transcript and close captioning by Don Hopkins. Camera and interview by Abbe Don. Taped at the San Francisco Exploratorium.