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 This is an interesting read - good thing I didn't show my script that extracts the lines and files where each variable is used :-). I learned a thing or two, so thanks!
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| So, first off, OpenSUSE 11.1 has to be the sweetest, best put together distro, like ever. Really amazing, quality stuff. The new installer has some excellent improvements, and package management has never felt zippier (zyppier??) However, there are a few problems that I’ve hit that I’m still trying to figure out after 2 days of fun and frolic. First off, I have a laptop (meaning I cant change the video card) with an nVidia chipset (meaning I’d like to change the video card). So while OpenSUSE 11.1 works really nicely with the open source “nv” video driver, it can’t do any compositing, 3d, OpenGL, etc., etc. (meaning no wobbley windows or cube goodness or translucency or… you get the idea…). So I followed these nice little 1-click instructions and installed the latest stable nVidia drivers, rebooted, and up came X with nVidia’s drivers quite nicely. So far so good. And then I clicked “logout”. And that’s where things started to fall apart. It looks like what’s happening is that nVidia’s X driver gets killed when logging out ...read more...
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| RSS and Planet readers: This article contains multiple embedded HD videos, to view them as intended please click here. A lot has happened in trunk since the release of KDE 4.1 in July. With 4.2 final just a little over one month away, now is the perfect time to look back and see if we have achieved our goals. I would like to try and start something here by writing an overview of what has happened in KWin over these past six months, if the developers of all the other KDE sub-teams also write one for their own projects we can have a nice little series produced. The main focus of KWin for 4.2 was, without a doubt, desktop effects. Lubos concentrated on card detection, automatic enabling if the system supports it and general optimizations of the core while Martin and myself focused almost entirely on the effects themselves. This does not mean that we didn't do any bug fixing on non-compositing features however, that is just a given. I'll outline ...read more...
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| I just read Johan's post about Qt environment variables and wondered if there was a better way to find these. Johan, this is really not meant as any attempt of blaming you for anything. It's just sort of a hobby for me to do things a effective way and you just ran into my sight ;) Really, no pun intended. His original attempt was:
grep getenv -r src/ | grep cpp: | grep -o ""[A-Z_0-9]*"" | sed 's/"//g'
So for those not familiar with the options of those tools: search recursive in "src" directory for everything containing "getenv". As grep then writes "filename:matching line" take only those lines with "cpp:", then cut out the term in quotes and remove them. Ok, my first idea was: why not simply limit the search to cpp files?
find src -name *.cpp -print0 | xargs -0 grep getenv | grep -o ""[A-Z_0-9]*"" | sed 's/"//g'
The "-print0" makes find limit all matches by a 0 character instead of whitespace so this would also work for ...read more...
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| Yes, this is actually edible! My partner Myriam made these special cookies for me, as a gift for our successful Amarok 2.0 release.
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| There are only 2-3 books regarding Qt , the popular GUI C++ Toolkit for UNIX, Windows, MacOS and embedded Linux.
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| "You could not live without quaternion, could you?", so was the impression of my advisor. William Hamilton and William Clifford are my heroes. I fell in love with quaternion some time ago and used it with passion in my dissertation (check the summary). Those who had done extensive polarization analysis using matrix and quaternion would come to the usual conclusion: for this context, quaternion and polarization analysis is a marriage made in heaven. Now I realize that few days left until 2008 is gone. This would mark my biggest failure for this year. Sadly, I fail (again) to learn Clifford algebra in depth.
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| For the second year in a row (here is is in 2008), the US News & World Report has named being a usability specialist as one of the top career choices for 2009. It’s amazing and gratifying how much more software companies are recognizing usability as a necessary part of the design/development process compared to 10 or even just 5 years ago. Go good design!
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I've just downloaded Qt 4.5 beta 1 and started playing with it. One thing that I've run into a couple of times now are environment variables. Their usage is quite sparsely documented, and can really prove to be useful. So, to have an excuse to look around in the source, I greped a bit.
grep getenv -r src/ | grep cpp: | grep -o ""[A-Z_0-9]*"" | sed 's/"//g'
The X11 version gives 83 hits, while Qt for Embedded Linux (tp1) gives 101. Mergin the two gives 108 unique strings. The difference between these two is fun to look at, but lets start with the more commonly used version: X11.
The variables BROWSER and DEFAULT_BROWSER are used from the QDesktopServices class. The XDG_CACHE_HOME, XDG_CONFIG_HOME and XDG_DATA_HOME are also used by the same class. These variables are all specified in the XDG Base Directory Specification from freedesktop.
QApplication uses a number of environment variables. First, a whole range of variables regarding sessions and desktop ids: DESKTOP_SESSION, DESKTOP_STARTUP_ID, GNOME_DESKTOP_SESSION_ID and ...read more...
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| But here it is, and shows a nice picture of the app we've been building together. At the same time Nine's Hyves blog about the photouploader was replaced by a more official, but slightly less accurate blog by one of the Hyves founders. It gets downloaded quite a lot, which adds to the general feeling of having done a good job that this Gang of Four share. Meanwhile, we are learning about this cross-platform binary release business. Apparently our linux version, which has always been perfectly anti-aliased on our machines, suddenly shed its anti-aliased font rendering on Thomas Zander's computer. And the sound, which works on Ubuntu, doesn't work on OpenSUSE. There's only one real solution, I'm afraid: making it GPL and getting our users to compile it for themselves :-). And today? I'm giving Qt 4.5 a try and taking a look at the Qt Creator source code. It's pretty interesting to see the code of a big Qt application that's not part of Qt or KDE, and it makes me think ...read more...
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| Dear all digiKam fans and users!  After a huge bug triage where more than 120 bug reports have been closed since 0.10.0-beta6, digiKam development team is happy to release the 7th beta release dedicated to KDE4. The digiKam tarball can be downloaded from SourceForge. read more
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| People naturally group information by topic and remember relationships between important things, like a person and the company where she works.
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| Here is a small video, enjoy 
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| The beginning of this year in KDE was marked with the tagging and release of KDE 4.0, followed up by the release event in Mountain View. KDE 4.0 has marked for the KDE community a stable base to build a kick-ass desktop and applications on. Over the past year, we see this effort paying off. Applications such as Dolphin, Gwenview and Okular are mature tools, powerful and userfriendly at the same time, speaking for the KDE4. With KDEnlive and Amarok 2.0 as their first KDE4 version, we see the more complex applications coming up. On the workspace side, new UI technology has matured, KWin's compositing and Plasma give you a very smooth ride as well. The development platform is paying off, it proves to be a very extensible and future-proof platform, more and more applications are becoming available on Windows and Mac, KDE on OpenSolaris is getting closer to inclusion in the distribution, and we've seen KDE already available on FreeBSD. New applications written in Python have entered KDE, and scripting support for many applications is becoming available ...read more...
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Evangelism, for Christians, could be described as sharing a great secret with someone - sharing with others the hope that lies within you. Not forcing it down their throat - but, through your words and actions sharing, encouraging and enlightening someone about something you truly believe.
Well, this isn't a story about Christian evangelism, but GNU/Linux. Hahaha, some of my viewers are rolling their eyes already - yeah, you Zac.
I was recharging my laptop batteries in the camp kitchen of the camp site we were staying in. A couple from Peru were there and were interested in how I was getting internet access (I was browsing Slashdot at the time). I then excitedly described how all I had to do was plug in my mobile phone into the computer and that Ubuntu Linux then automatically configured it to work.
They thought that was very cool. I felt cool anyway. =D
A while later (I was still browsing the net) the girl asked me was operating system I was using - she loved the default Ubuntu ...read more...
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| "In this weeks' edition of the Road to KDE 4, we'll take a look at the up and coming KWord 2.0 as part of the KOffice project.
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| First of all, just to get the terminology straight. In this post, I define a filter as something that limits what you actually see in a view, and a search as something that selects items in the view without ...
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| Nepomuk's software is available for several computer platforms and now comes as a standard component of the K Desktop Environment , a popular graphical interface for the Linux operating system.A A Nepomuk is ...
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Templates are one of the extremely powerful features of C++ that set it apart from most other languages. You can do most everything with them, from extremly complicated compile-time meta-programming like binary self-balanced trees, down to simple shared pointers or generic container classes. When I switched to Linux a few years ago, I found KDevelop3 and liked it. However I noticed that it didn’t support code-completion for even the simplest C++ templates like for example a reference-counter pointer. That was my entry into KDevelop development. I implemented template support in KDevelop3 that had most of the needed features, and worked quite well when the needed libraries were processed. However the quality it could reach had some upper bounds, since there was no powerful backing structure like the DUChain, but rather just a flat completely string-based code-model. Actually it was quite hard making the static DUChain structure compatible with dynamic templates, where a new declaration can be created with every use of a class. However I succeeded, and today I’ve reached a milestone that is far above of what ...read more...
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As I already said, I wanted to work a bit on okular again and I am nearly done now.
Today and yesterday I added support for djvu-files and for Microsoft's Compressed HTML Help (chm) to okular. For both libraries there are now two patches for making them build with CMake ;-).
The library of djvu seems to work fine, chm has some problems with zooming though. I am not sure whose problem this is, but definitely that will need a clear head so I won't look at it now.
Another new feature will follow tomorrow: I asked my distro to package libopenjpeg for me and that guy was really nice and will make the openjpeg packages available tomorrow. Right after that I will follow with new poppler packages I think.
For all those waiting already, I am planning to make up a tutorial of how you can easily build a custom CD with your favourite KDE on Windows applications so that they are installable on their own.
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Real life has been busy recently, but work on Kolf 2 is going on. My recent achievement has been first code for collision handling. The new implementation is much more compact and readable than the old one, and I have ensured through some simple tricks that the quirks with the old code (esp. ball-wall collision) cannot happen. Now some of you would like to see this code in action. As you cannot see correct collisions on a screenshot, and I have not yet installed recordmydesktop or such, you will have to checkout the code from playground/games. I have spent much time to think about the further way of Kolf, and the path seems quite clear now. We
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| "Filelight is designed for KDE, but will work in other desktop environments. The latest version hails from September 2006, though a KDE 4 version is promised; the author is "getting round to it." Filelight is ...
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Comments After posting A refactoring journey: the control center yesterday, I got some comments quickly. Of course I got some comments like “The category icons are too small” “Spacing is wrong”. When it was clearly stated at the end of the post: Note that none of these screenshots mean “this is how the control center will look”. The focus is still on the infrastructure that enables us to try more radical approaches. For example, the old control center look and feel is trivial to emulate. However, there was another series of comments: Why don’t you add the yast options into the KDE settings? I think the answer to this question is the same as the inverse. Why should we? ls /usr/share/applications/YaST2/ | wc -l
85
There are 85 modules in my system. Well, not all visible. I don’t have all available installed either. But, would you like to have suddenly 85 icons in this view? 
What do others do? Now, Mar
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| Linked by Thom Holwerda on Wed 29th Aug 2007 12:14 UTC, submitted by stonyandcher "The next-generation of the KDE open source project, version 4.0, has been touted as the beginning of a new era in desktop ...
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| And so it should - it’s an awesome shell. Anyway, I’ve just spent a lot of time sorting out my zsh so it does titles in the right way. By this, I mean changing the title of your xterm window, and/or your screen window. Anyway, here’s the code that I use for my zsh titles precmd () {
case $TERM in
screen)
print -Pn \"e]0;%n@%m: %~a\"
print -Pn \"ekzsh: %~e\\"
;;
xterm*|rxvt)
print -Pn \"e]0;%n@%m: %~a\"
;;
esac
}
preexec () {
case $TERM in
screen)
print -Pn \"e]0;%n@%m: $1a\"
print -Pn \"ek$1e\\"
;;
xterm*|rxvt)
print -Pn \"e]0;%n@%m: $1a\"
;;
esac
} I find this works in the same way that the default bash shell does  though - it also works quite nicely with screen, and sets the screen titles for you too  Also - my prompt lines are (inspired by Daniel Silverstone circa 2005) export RPROMPT='%B%d%b %t '
export PROMPT='%B%n@%m %#%b ' Happy zsh’ing folks!
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| This last term at University has been pretty busy. That's to be expected I guess since it's now my final year but I've been busy with my final year masters project (a particle physics project in collaboration with BaBar) and a course in high performance computing where I've learned everything from SWIG to OpenMP and MPI. My interest was so piqued by the HPC stuff that I've decided that I am going to focus my PhD on that area, now I just need to find somewhere that will take me :) Anyway, that's the reason I've been somewhat absent from KDE recently. However, now it's the Christmas break and while I do have some Uni work to do, I've got some time for KDE stuff, particularly for KSquares which has unfortunately been almost unchanged since KDE 4.0.0. I'm just about to start work on a full AI system for it. Up until now, the AI had two modes, one which just moves randomly (hardly fun to play against) and another which ...read more...
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| The more you get comments and the more you study something, the more lost you feel, at least where there’s really a few number of people that seem to agree. This is what I currently have for System Settings, because I was asked to “columnify” elements. This is the first approach we can give, which consists on setting a grid, being its size the biggest width & height in all elements in the view: 
This is what the current System Settings (in 4.0, 4.1 and 4.2) does. It maybe leads to really huge spacings between small elements because of only one item being specially big, because of its string. The other solution is to wrap the text at items: 
I also have rewritten the way Dolphin draws the category, since it seems that almost nobody liked it. I want to say that accepting a ...read more...
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| The 5th KDE4 beta release of digiKam plugins box is out.  With this new release, a new plugin named SmugExport is born. It's dedicated to export images to SmugMug web service. read more
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| You might remember from one of my recent posts that I mentioned mlaurent and aacid had high connectivity in my communication graph. This wasn't an idle observation... (I suggest you head back and read that post if you need a reminder of what I'm on about here) When we graph communication (of all sorts) we expect some nodes in the graph to be more highly connected than others. It has been noted by Barabasi in the book "Linked" and by Benkler in the book "The Wealth of Networks" that as the distribution of connectivity grows organically into a Power-Law distribution then that communication network has reached maturity. I highly recommend both books to everyone. So, do we see this in KDE?... 
KDE Connectivity Distribution This clearly forms some form of Power-Law distribution; there are lots of developers with low connectivity and few developers with high connectivity. So this is a good thing. However, the massive drop between the number of developers with 1-10 connections and the number of ...read more...
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