March 2001 - XEmacs-Beta - XEmacs Mailing List Archives

Andy Piper

I remembered I have a keyboard for my Palm Vx which I can use on the train. Let me know what other topics you would like me to cover. andy Widget Redisplay Widget redisplay follows the general asynchronous nature of redisplay in general - that is items for display are updated separately to their actual visual representation. For instance a tab control has serveral lisp structures associated with it. When the tab structure is changed, thes lisp structures are changed, but it is not until redisplay proper that you actually see any change. There are several reasons for doing it this way, one is that it conforms more closely to the second rule of redisplay - not to call lisp during redisplay. The actual mechanics of this is encoded in two image instance methods - update_image_instance and redisplay_subwindow with obvious meanings. These methods delegate to widget specific versions via update_widget and redisplay_widget. These in turn delegate to device and format specific methods - for example layout_update and mswindows_button_redisplay. update_image_instance bears further discussion since it encapsulates behaviour that is important to understand. To change a widget the image instance is not manipulated directly, but rather its instantiator is changed and then these changes are propogated to image instances that are instantiated by this instantiator. However, in order for this behaviour to work properly it is important that the image instances are not recreated - as would be the case in a naive implementation - unless absolutely necessary. Thus, the image instance cache for widgets is keyed on the glyph identity and the widget type *not* on the instantiator. When image_instantiate is called it looks up the image_instance based on its glyph and domain and if a match is found update_image_instance is called with the new instantiator. The cache is keyed on the image type as well as the glyph because it would be impossible to merely update an image instance representing one gui widget to another; for instance converting a button to a tree-view. update_image_instance compares the original instantiator and then calls widget_update with only those keyword-value pairs that have changed. The individual image instance update functions then update the internal structure of the widget using those values. However, herein lies a problem - redisplay optimizes which parts of the screen it is going to display by comparing current and future redisplay structures, however in the case of glyphs the glyphs are the same object in both sets of structures. This is because otherwise glyphs and image instances would be recreated each time redisplay was called. So how does redisplay know whether to actually update the displayed properties of image instances? The solution is a set of `dirty' bits in the image instance which are set depending on what changes update_image_instance has actually made. The flags also need to be propagated up to the glyph so that redisplay can tell easily whether something might have been changed or not. We say `might' here because it is possible for the same glyph to have diffferent instantiators in different domains and thus redisplay must update only the image instances for the instantiator that has changed. The dirtiness or otherwise of a glyph is encapsulated in imge_instance_changed and also compare_runes. When a determination of dirtiness has been made the image is redisplayed using redisplay_subwindow. This propogates the lisp structure changes (in gui_item) into on-screen properties and then marks the structure and instantiator as up-to-date. In both X and mswindows a lot of generic updating is done in mswindows_redisplay_widget and x_redisplay_widget. In fact under X this is pretty much the only function that gets called since the updates are then delegated to lwlib to handle.

1 participants
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Re: itimer "url-history-saver" signaled: (void-function w3-write-explicit-encodings) 23 years, 8 months

Jan Vroonhof

"Dr. Volker Zell" <Dr.Volker.Zell(a)oracle.com> writes: > itimer "url-history-saver" signaled: (void-function w3-write-explicit-encodings) > > It seems that url.el from w3 needs a require w3. I haven't looked at the code, but that seems bad. There should be some guard or that function should be changed to url-write-explicit-encodings. Jan

1 participants
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Re: Argh. Why is this happening to me? 23 years, 8 months

Jan Vroonhof

Valdis.Kletnieks(a)vt.edu writes: Valdis, you are seeing a similar problem that Richard has been reporting for a while. The things that all the different crash seem to have in comment is as you both have remarked a. A _real_ motif, i.e. commericial or openmotif, not lesstif b. Mule > will survive at most 3 invocations of 'gnuclient /etc/motd' (and usually > crashes on trying to leave the first try). Using --with-mule=no produced > an xemacs that survived 14 invocations before I got bored. I've now cycled > through alternate builds with mule=no and mule=yes 3 times, and it seems to > only crash on Mule builds. > > Diagnosis: Motif and MULE don't get along. I'm not sure what level of > show-stopper it is - I may be the only bozo trying to build with both > Mule and Motif. > > More additional info: --with=mule=yes --with-xim=xlib and Athena > widgets/dialogs works as well. Seems like the instant you allow Motif > to be linked in for *anything* (even XIM) it breaks Mule. Does just "--with-xim=xlib" do the trick? There have been patches floating around to disable motif based xim completely because of its instability. > > I've now exhausted my debugging ability on THIS one. Has *anybody* actually > had a working build with both Mule and Motif at same time? Richard, does --with-mule=no "fix" things for you? Jan

6 participants
12 comments

Re: XEmacs + userfs (linux) 23 years, 8 months

Adrian Aichner

>>>>> "Michal" == Michal Maru¹ka <mmc(a)maruska.dyndns.org> writes: Michal> What about having a filesystem made of buffers? Michal> Then we could grep/find over buffers! Hi Michal, give this a try. It has served me well ever since I wrote it two christmas's ago. Steve, can you give this a try? Would it be worth adding this to xemacs-packages/x/y/z/z/y? Best regards, Adrian Michal> Any suggestion? -- Adrian Aichner mailto:adrian＠xemacs.org http://www.xemacs.org/

3 participants
9 comments

Calc bug 23 years, 8 months

Daniel E. Doherty

Under Xemacs, the numeric keypad does not work in calc. Any change of getting that changed? Just a lowly user. -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Treason never prospers. % Daniel E. Doherty % % What's the reason? % Overland Park, KS (USA) % % Why if treason ever prosper, % ded03(a)swbell.net % % None dare call it treason. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

3 participants
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Re: Sheesh... 23 years, 8 months

Jan Vroonhof

"Matthew O. Persico" <persicom(a)acedsl.com> writes: > How the )&*(%^&$^&*%^&*$^&*%$%!＠^&*%＠#$＠#! do you people ever get > anything done over a 56k modem? He, it is even slower when running over ssh! :-( (That's why most of the reviewers checkout over pserver and then commit using ssh). Anyway, cvs.xemacs.org just got upgrade to a newer CVS version (it had a y2k problem!). The hope is it will be faster as well as more reliable now. > I've got DSL and I gave up and went to > bed and let it run overnight! Are your using -z3 ? Jan

3 participants
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Re: packages installation stuck to authentication (PR#1599) 23 years, 8 months

Stephen J. Turnbull

Juhana Vartiainen writes: > Trying to proceed with packages "List & Install", the ftp part of the > operation gets stuck with a message from the ftp site: hello unknown, we > cannot identify your system. AUTH not understood. > > Normal ftp operations from the shell do succeed, however, with anonymous > logins. I did not have this problem with my previous RedHat 6.2 > workstation, but it appears now that I am shifting to redHat 7.0. I've seen a couple of these reports. Another from Per Bothner gives a trace to anonymous(a)ftp.xemacs.org: open ftp.xemacs.org Connected to xemacs.org. 220 ProFTPD 1.2.0pre10 Server (ProFTPD on ftp.tux.org) [gwyn.tux.org] quote user "anonymous" 500 AUTH not understood sorry about the format, I'm working from !"#$% Jitterbug....

2 participants
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xemacs 21.2b45 fails when not on network ( not the obvious ) 23 years, 8 months

Chris Green

This bug report will be sent to the XEmacs Development Team, not to your local site managers!! Please write in English, because the XEmacs maintainers do not have translators to read other languages for them. In XEmacs 21.2 (beta45) "Thelxepeia" [Lucid] (i686-pc-linux) of Tue Mar 20 2001 on phosphorus.tucc.uab.edu configured using `configure --prefix=/usr/local/xemacs-21.2' Please describe exactly what actions triggered the bug and the precise symptoms of the bug: When I start XEmacs on Display :0.0 without being attached to network, it halts trying to look up host "localhost.tucc.uab" ( thats what I think strace is showing ). Just for giggles, here's what my /etc/hosts looks like, I've tried changing the first like to just localhost and localhost.tucc.uab 127.0.0.1 localhost localhost.localdomain [ lots of 192.168 machines ] [ current ip ] 138.26.15.220 phosphorus.dok.org phosphorus phos 138.26.15.220 phosphorus.tucc.uab.edu phosphorus phos Heres the strace output socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 5 connect(5, {sin_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("138.26.1.2")}}, 16) = 0 send(5, "\357\350\1\0\0\1\0\0\0\0\0\0\tlocalhost\4tucc\3uab\3"..., 40, 0) = 40 21.1.14 works fine disconnected from network. Recent keystrokes: button1 button1up M-x s u b TAB m i TAB BS BS BS BS BS s u C-g misc-user Recent messages (most recent first): Loading emacsbug...done Quit Loading emacsbug... Loading edmacro...done Loading edmacro... Loading pcl-cvs-startup...done Loading pcl-cvs-startup... PGP version set to GPG. Loading mc-setversion...done Loading mc-setversion...

2 participants
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Mail source error ((file-error I/O error No such file or directory c:\Users\AichnerAd\.uidls.old)) 23 years, 8 months

Adrian Aichner

I am starting to investigate this occuring in (emacs-version) "XEmacs 21.2 (beta46) \"Urania\" [Lucid] (i586-pc-win32) of Thu Mar 29 2001 on D5DC120J" Reading active file via nnml... nnml: Reading incoming mail from pop... Retrieving message list... Retrieving message list...5 unread Retrieving message 1 of 5 from pop.t-online.com... Retrieving message 2 of 5 from pop.t-online.com... Retrieving message 3 of 5 from pop.t-online.com... Retrieving message 4 of 5 from pop.t-online.com... Retrieving message 5 of 5 from pop.t-online.com... Wrote c:\Users\AichnerAd\.emacs-mail-crash-box Mail source error ((file-error I/O error No such file or directory c:\Users\AichnerAd\.uidls.old)). Continue? (y or n) Mail source error ((file-error I/O error No such file or directory c:\Users\AichnerAd\.uidls.old)). Continue? (y or n) M-x Please answer y or n. Mail source error ((file-error I/O error No such file or directory c:\Users\AichnerAd\.uidls.old)). Continue? (y or n) Mail source error ((file-error I/O error No such file or directory c:\Users\AichnerAd\.uidls.old)). Continue? (y or n) Yes nnml: Reading incoming mail (no new mail)...done Reading active file via nnml... Reading active file via nnml...done Reading active file via nnfolder... Reading active file via nnfolder... Reading active file via nnfolder...done Checking new news... -- Adrian Aichner mailto:adrian＠xemacs.org http://www.xemacs.org/

1 participants
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Re: Fw: Qt/KDE Xemacs 23 years, 8 months

Doug Alcorn

wmperry(a)aventail.com (William M. Perry) writes: > The Free Edition is the Qt for Unix/X11 toolkit, licensed for development > of free/Open Source software. Doesn't XEmacs run on more platforms than Unix/X11? Would that mean XEmacs/Qt compiled for Win32/Mac would be illegal? -- (__) Doug Alcorn (mailto:doug＠lathi.net http://www.lathi.net) oo / PGP 02B3 1E26 BCF2 9AAF 93F1 61D7 450C B264 3E63 D543 |_/ If you're a capitalist and you have the best goods and they're free, you don't have to proselytize, you just have to wait.

4 participants
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XEmacs-Beta March 2001