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- Newsgroups: comp.lang.eiffel
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!uvaarpa!murdoch!cds001.cebaf.gov!quarrie
- From: quarrie@cds001.cebaf.gov (David Quarrie)
- Subject: Re: TOOLS Conference Report (?)
- Message-ID: <1992Aug17.125608.5938@murdoch.acc.Virginia.EDU>
- Sender: usenet@murdoch.acc.Virginia.EDU
- Reply-To: quarrie@cds001.cebaf.gov (David Quarrie)
- Organization: CEBAF (Continuous Electron Beam Accelerator Facility)
- References: <1992Aug12.090606.12@corning.com> <1992Aug14.153413.14811@merlin.hgc.edu>
- Date: Mon, 17 Aug 1992 12:56:08 GMT
- Lines: 68
-
- --
- In article <1992Aug14.153413.14811@merlin.hgc.edu>, jcm@hgc.edu (James
- McKim) writes:
- |>
- |>EiffelBuild is an application builder. Again using the drag and drop
- |>mechanism one can quickly build and experiment with graphical user
- |>interfaces, for example. You build the interface on the screen and
- |>the system generates most of the code. If your interface
- |>includes a command button, the code for putting the button on the
- |>screen, with text and colors of your choice will be automatically
- |>generated. At the appropriate time, the system will provide a
- |>template for the code _you_ have to fill in. Namely, what happens
- |>when somebody clicks on the button. Perhaps someone with experience
- |>with other GUI builders could comment further (Dave Q?).
- |>
-
- Hmm, I knew Jim would try to get me to post more often!
-
- I can only reinforce what Jim has said about EiffelBench and EiffelBuild. They
- both look extremely good. One interesting number was that between them they
- take about 1400 Eiffel classes so the Eiffel 3 compiler should be pretty
- robust when it ships. My understanding is that EiffelBuild (and EiffelVision)
- both allow you to build applications for either Motif or OpenLook (although we
- only saw the Motif version and that was generating Eiffel 2.3.4 syntax code for
- now) and that you can optionally make that switch at run-time (if you're
- willing
- to pay the penalty of a larger executable).
-
- The "abstract" EiffelVision API looks pretty much like Motif so all the various
- button widgets/gadgets, RowColumn widget are supported. The interactions are
- supported by adding command objects to actions where EiffelBuild will supply
- an empty routine for you to fill on (or you can use prebuild commands from
- a palette). I'm not sure I'm using the correct terminology here.... One nice
- touch is that EiffelBuild supports the notion of a state machine and you can
- identify different commands to the same user interface object depending on the
- sate the application is in. This could obviously be abused to generate modal
- user interfaces, but it also allows considerable flexibility (which will
- be very
- useful in one of my particular applications).
-
- One comment about EiffelBench is that there is some uncertainty (at
- least in my
- mind) as to what capabilities are available from the Unix shell (and are
- thus
- suitable for use within scripts) as opposed to interactively. I did ask
- about
- whether the equivalent to "es" was available (the answer being "yes")
- but I'm
- not so sure about flat/short/ancestors etc. Certainly, when generating
- the
- documentation for a class cluster I would like to have access to all of
- those
- so I can generate the basic documentation automatically from within a
- script.
-
- Like Jim, I didn't get to see EiffelCase (well, I peeked over someone's
- shoulder
- and saw one diagram, but I never actually saw it in use).
-
- The $64k question is of course, when???
-
- David
- -------------------------------------------------------------------------------
- David Quarrie CEBAF MS 12H
- 12000 Jefferson Ave
- Internet: quarrie@cebaf.gov Newport News VA 23606
- DECnet : cebaf::quarrie Tel: (804) 249-7562
- BITNET : quarrie@cebaf Fax: (804) 249-7363
-