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- Path: sparky!uunet!decwrl!csus.edu!csusac!unify!openlook!openlook-request
- Message-ID: <tl3eoly@openlook.Unify.Com>
- Newsgroups: comp.windows.open-look
- Distribution: world
- Date: Fri, 28 Aug 92 10:18:16 EDT
- From: fgreco@fis1026.shearson.com (Frank Greco)
- Sender: news@Unify.Com
- Subject: Re: How do Motif and OpenLook compare?
- Lines: 92
-
- > My dept. is in a position to purchase either Motif or OpenLook, and
- > I was hoping I could get some opinions on which is superior, or
-
- Neither. First, You cannot purchase Motif or OPEN LOOK; they
- are both specifications not software. There are several toolkits
- that implement the Motif LnF (ie, OSF's, Solbourne's OI) and
- there are several the implement the OPEN LOOK LnF (ie, XView, OLIT,
- Solbourne's OI, TNT).
-
- It is a purely subjective decision.
-
- If you want the Xt-style of API and a MS Windows look (but
- definitely not the feel), you go with OSF's Motif toolkit.
- Note that there are some juicy bugs if you use OSF's 1.1
- toolkit, which you currently must use with OpenWindows; you
- cannot use the newer OSF Motif toolkit without R5 (I'm told).
- And of course, OW 3.0 is not R5 compatible.
-
- If you want a more spartan (but more efficient imho) Lnf, you
- go with OPEN LOOK and choose the Xt-style (fugly imho) with
- OLIT, Sunview-style with XView (very, very easy to program, but
- a bit inflexible and hard to extend) or truly object-oriented
- elegant and suicidal with TNT/NeWS.
-
- You can look at abstract toolkits like OI, Moolit, Aspect and
- XVT which either give you the runtime (or dynamic-link time)
- choice of GUI (OI, Moolit), or a higher level toolkit "on-top"
- of Motif/Olit/MS-Windows (XVT, Aspect).
-
- > alerting me to any problems which could influence the decision. I
- > was also hoping to find out what kind of overhead is involved in
- > adding these on top of X-Windows. I am kind of assuming that graphic
- > applications will take more CPU cycles running either of these as
- > opposed to using twm with the Athena Widget set, but I'd like to
-
- You can make the Athena widgets run just as slow with the 3-D
- extension posted recently...
-
- It depends where the X client resides. I was happy 2 years ago
- with a 3/60 basically as an X terminal with *all* my jobs remote; but
- that meant I needed more RAM/disk (swap) on my
- "CPU-server/X-Window-Client Server" (hope you get what I mean
- there). Of course this is not a true distributed environment,
- so keep that in mind. I'm much happier with a SS2 with 64 MB
- and a 400 MB drive in a truly distributed and network-efficient
- environment.
-
- Graphic applications will take a toll on the network (if images
- are being passed back and forth); that's X for you. I'd also
- suggest looking into a workstation that has graphics
- acceleration. Also take a look at Sun's new graphics extension
- to OpenWindows; you'll get substantial performance increases if
- you use it (it's a layer below Xlib if I'm not mistaken... I
- wish I could remember the product name though).
-
- One thing though, OpenWindows is slower, but more functional
- than MIT's vanilla X *given the same RAM*. Subsequently OW
- requires more RAM to run efficiently; the more the better.
-
- > know if the overhead for either is significant, or if one is
- > superior to the other. It's also important to know if one is clearly
- > easier to write applications in, although we will almost certainly
- > obtain a GUI builder for which ever one we decide on. If you think
-
- From my experience, despite its blemishes, XView is by far and
- away the easiest API for application programmers (ie,
- Non-XWindow experts) with Devguide 3.0 the low-cost winner in
- the builder area. Caveat: Devguide (actually a postprocessor
- called golit) still doesn't produce decent OLIT code. Other
- builders have flash and sexier features; but Devguide 3.0
- (note: *not* 1.1) gets the job done quite nicely. But it still
- cannot handle fonts (and in some places, color) well at all.
-
- > from these questions that I'm a neophyte to X-windows and either of
- > these products, you are correct. The only real GUI application I
- > have written was in SunView, and had no widgets/gadgets whatever,
- > but did use menus and tracked the mouse. The applications that
- > we will use will not need to be really GUI intensive (for now), but
- > the easier it can be made the better.
-
- If you're familiar with SunView, you'll definitely like XView.
-
-
- Frank G.
-
- Caveat1: Party line from Sun is that customers use OLIT though.
- You'll have to ask them why yourself.
-
- Caveat2: We get to revisit all our GUI choices when SunSoft's
- DOE hits the ground running.
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