With Akademy and other stuff going on, it looks like the report on the KDE Finance Sprint didn't make it to the front page. I would like to thank Guillaume and the other people who helped put the report together, and of course, the board, Claudia, Thomas snd Syrocon, who enabled the sprint to happen at all.
I snuck away from Akademy on Friday morning. My intention was to sign some legal documents (part of a resolution of the AGM of the KDE e.V.) and say good byes to all and sundry, but that got terribly sidetracked. The usual experience of walking into Demola is people saying “Hey, [ade], I need to talk to you.” I don’t imagine this is unique to me — there’s so much coordination that goes on at Akademy when you finally have every sub-project on hand to chat with. So I ended up with a long talk with Elias about truth in advertising, and then I tried to print and sign and scan the document at hand. Kaare, a guy I’d exhanged some banter during the day trip, wandered over. It turned out that Kaare is the Skanlite dude, so I took the opportunity to thank him for his work.
Then rushed goodbyes — I skipped the whole of floor 4 with the BoFs — and off to the bus. Milian, Niels, Richard and Lubos were on the same flight, and ...read more...
I'm very happy to announce you that the reverse geotagging widget is finished! This was the first part and maybe the most important part of my project in this year Google Summer of Code, so I'm glad to see it working.
Now, perhaps some of you will ask: "Ok, but what is reverse geotagging?" Well, it's a process that reads the GPS coordinate inside an image and then tags it with address elements(country, city, street...).
I actually wrote parts of this blog post past friday, so just pretend aKademy has just ended while you read this.
All good things come to an end, and aKademy is of course no exception. Demola is closed, and tomorrow the taxis, buses, trains and airplanes that will bring us home will inevitably depart on time, and even though we may not want to, we’d better be in them.
I want to talk about a few highlights of aKademy this year. It’s been my first one, so I can’t compare to earlier ones – but I promise I will be able to compare next year’s aKademy to this one!
Possibly the most amazing thing this aKademy was the fact that I finally met Diederik and Valerio, two other KMess developers. We planned to come together, and it’s been great. Next year we’re going to try to pull the rest in too, which means there’ll even be some Australian blood. We will also probably have more realistic expectations of how much work you actually get done…
Yep, I didn’t have time to blog during aKademy as you may have noticed The main reason is that I had a lot of discussions and attended to a huge number of BoFs. This aKademy rocked just as the others that I went. Huge thanks to the organization team, KDE e.V and sponsors for providing ways to make this happen and to have a lot of KDE hackers there!
Instead of doing a technical blog today, I will just say that during this aKademy KDE ‘called home’ for the first time. This means that for the first time in history we had KDE running on a mobile phone and we made a call with it! This was AWESOME! Just a summary: Plasma-Mobile and a plasmoid that worked as a dialer did the work, using the phone API of Maemo5 on a N900.
As Aaron noticed, our first call was a little bit more “interesting” than Graham Bell’s one. The first words on a telephone in history are:
Today I saw a post by The Linux Critic. In the post the author, Trent, says "I’m really not a fan of the new Amarok", which naturally got me curious as to why. After all, if you don't know what problems people have with your software, it can be hard to improve it.
I had never interacted with Trent or any other member of The Linux Critic before, nor had I ever visited their site. I was there with the best of intentions.
I'm going to let the discussion we had speak for itself. I've reproduced it below, because Trent started removing my comments and modifying his own. You can see the original blog post here -- it's not even really relevant to most of the ensuing discussion -- however I strongly recommend, in case further modification has been made to the discussion on that page, that you read the reproduction of the discussion below which is accurate as of the time of writing this post. At the ...read more...
kate-editor.org now contains all articles from the old page still applicable to Kate in KDE 4 and in addition all blog entries of Dominik which are Kate centric.
Beside that it will aggregate the blog entries of Milian for Kate
Still, a lot of work is needed. We already got an offer for help to beautify the page by a web designer, still content writers are missing. You have a nice short post about how to use Kate best? You have some howto? Just contact us or me in private. We can either give you an account on the page or just add your content if you like that more.
OK, once again I didn’t quite manage to write a blog each day… It always starts well and then the hackathon kicks in.
The last three days, I had more meetings again. We made quite some progresses on our plans for Solid. I even got some more people to write on backends for libsolid, really neat. Looking forward to share the load in this way.
Of course hacking in between, and in particular today where I made quite some progresses on the new version of Zanshin which I neglected completely for the past year. Also notable was yesterday day trip, we spent the afternoon next to a nice lake. Kind of reminded the day trip in Glasgow, except that we had great weather this time, and hungry mosquitoes.
People started to leave already, I’m part of the last group of fearless hackers here. Tomorrow it’ll be my turn to move back home, not really looking forward to the trip itself, but having some rest at home will be welcome after such a hectic and ...read more...
Faster here however must be taken with a grain of salt as the new code is not always guaranteed to be better pipelined.
And of course, it's trivial to beat this generic C code with architecture-specific hand-rolled assembly.
git show cbc22908 commit cbc229081a9df67a577b4bea61ad6aac52d470cb Author: Ariya Hidayat Date: Tue Jun 30 11:18:03 2009 +0200
Faster quaternion multiplications.
Use the known factorization trick to speed-up quaternion multiplication. Now we need only 9 floating-point multiplications, instead of 16 (but at the cost of extra additions and subtractions).
Callgrind shows that the function now takes 299 instructions instead of 318 instructions, which is not a big win. However I assume the speed-up has a better effect for mobile CPU, where multiplications are more expensive.
We initially started the push for location-aware desktops around 2006, and now the efforts are finally starting to bear fruit. Both Zeitgeist and Nepomuk are looking at indexing documents based on where you accessed them, Telepathy can share your location with your friends, and hopefully soon also your desktop clock will switch timezones when you travel.
It was nice to have attended Akademy again. Everything was well organized and the talks were interesting or entertaining. Or both. Particularly the improvised KDevelop presentation managed to impress.
Tampere was also a good venue. Big enough to offer a variety of place to stay, eat and hang around. But not too big as everything was still in walking distance. The Finnish people also showed their strong side of being gentle during the day and party professionals at night. One exemplary experience: while laying in a park on the “day after” some guy who apparently had too much to drink heavily throws up under a tree. As if nothing happens he opens a can of beer, lights a cigarette and walks away.
The only not so nice thing was the trip home: I had been heavily suffering from delayed baggage on several international trips during the last months. Up to a point where people around me started to switch from pity to amusement. Arrived at Helsinki airport one convenient hour before departure. More than enough time for a passenger to ...read more...
A source tarball for the alpha version Bangarang 2.0 is available here.
This alpha phase will be a relatively subdued affair. It mostly intended as a nearly-feature-complete sneak peak for fans of the app. As our team is very small and our bandwidth is limited, we’re focusing our efforts on getting to feature-complete and into a more formal beta testing phase at which point we can focus on bug-fixing and polishing. A more detailed release announcement will accompany beta and final release.
Of course, this is pre-release software and, as with all such software, it may have an unpredictably voracious appetite for kittens and puppies and all things of universal cuteness and value.
Important: If you elect take a look at this alpha release, the first thing to do is to go the “Media Lists” view and select Advanced>Update Ontologies from the dropdown menu in the upper right. Bangarang 1.x stored media information in the nepomuk store using a draft version of the nepomuk shared desktop ontologies that was not ready at the time of the 1.0 ...read more...
Day 5 of Akademy was spent hacking too. Then I had a great meal at Plevna), Tamperelainen, which was mashed potatoes + lingonberry jam + Tampere’s famous blood sausages. Well it lived up to its expectations, the sausages were definitely good, but different. It was kind of like sabudana vada. Unfortunately Germany lost :( The final will still be a good watch though. Once again, I would like to
Akademy 2010 was an awesome success! I really enjoyed the time here and had really no time to blog anything. I'm currently staying at the amazing Demola building here where hackers can just do whatever they want. I've just committed a bunch of stuff into PMC and I'm going to give a brief overview of what i did.
Way more elegant with...
I've just added a bit of blur and opacity adjustment to the reflections and they now just look quite better (imo). Sane use of caching makes everything still smooth and slowdowns-free and therefore enjoyable.
...initial gestures implementation
As already mentioned in my talk at Akademy PMC is going to support gestures. This won't only allow common gestures on multitouch input devices but, most importantly, will ease the integration of different input devices. As I like to mention often, you'll be able to comfortably lie on your sofa and browse through your ...read more...
This is mostly a post for our distributions. In 4.5 we will most likely activate the Blur effect and Lanczos filter for Taskbar Thumbnails and Present Windows by default. Unfortunately not each driver supports those correctly. We have the following possible problems:
Performance issues with Blur Effect
Upside-Down taskbar thumbnails with Lanczos filter (affects also Present Windows)
Too bright taskbar thumbnails with Lanczos filter (affects also Present Windows)
Performance issues with Lanczos filter in Present Windows
Most users won’t have problems with those two new or if there are problems they affect only one of the two. E.g. disabling blur for performance does not require to disable the Lanczos filter. Therefore I implemented a KConfig based blacklist during Akademy. It uses KWin’s default KConfig file (~/.kde+/share/config/kwinrc) and uses KConfigGroup "[Blacklist]". The blur effect uses the sub-group "[Blur]", while the Lanczos filter uses the sub-group "[Lanczos]". This might be extended in future releases.
The blacklist is implemented in a way that specific driver versions for specific hardware are blacklisted. So if a new driver version is released this one ...read more...
Found a bit of time to continue the number crunching saga. Two new datasets are added to the KDE SC Stats topic center. The first data set is about the number of krazy2 issues per module (e.g. kdelibs, kdeedu, etc.): We see two modules that have clearly more issues than the others, kdelibs and kdepim. But, that was to be expected because when we look at the lines of code for these modules: we notice that kdelibs and kdepim clearly have more lines of code than the other modules as well. Actually, the two graphs have quite some similarities which is not completely surprising. One of the things that draws the attention is that we can see that although kdebase-workspace, kdebindings and kdeedu have an almost equal evolving lines of code count, kdeabse-workspace has a significant higher number of issues. Well, as ...read more...
so monday evening was typical akademy chaos. :) A few of us wanted to go to an indian restaurant for dinner… somehow our group of 8 (a reasonable number for not overwhelming a restaurant) was soon 11, and then 13 or 15… then there was some confusion and it was only 5. We did find the place, but it was closed :P so we ended up in an odd “mexican” place instead. decent food, big portions, but… thousand island dressing is not really a suitable replacement for cheese. o.0 After dinner and drinks there was going to be karaoke.. but the place that supposedly had karaoke every night was also closed. :P Directions from locals led us to other closed bars, but eventually we ran into a KDE crowd again. :) So the night didn’t go as planned at all, but it was still fun. :)
Tuesday, the bofs began. I was at the odfkit bof, where jos showed off our shiny things (which I’ll be showing again at thursday’s owncloud bof). I was too hot and tired to ...read more...
Last week I finally decided to spend some time on the UI of the tool, and you will see on this screencast that there has been some changes !
After correcting a small bug I introduced in the transform worker when adding shearing, I designed the Tool Options widget. I decided not to keep the mockup I made for my GSoC application, because I realized something vertical was more appropriate for Krita. In short, I added little buttons to set the rotation center to the 4 corners, the middle of the sides, and the center, and also spinboxes to display and change the current arguments of the transformation.
After that, I thought it was time to change the behaviour like it was discussed with the team : basically, we wanted the tool to show a low quality preview of the transformed pixels in real time, and let the user click on an "apply" button when he's satisfied with the current transformation, in order to transform eventually the selected pixels. I used QImage ...read more...
Today was a rather productive day as I sat with Leinir and Arjen, hacking on Gluon (while Sacha was trying to get his Qt Creator to work with his N900) and as a result, the comments model is now editable :)
As mentioned in my previous blog post, the Gluon Team has received a Nokia N97 mini for testing Gluon Player o S60 platform. Though we currently are focusing more on Maemo/MeeGo devices, we'll be very excited to bring the social gaming experience to Symbian.
We had a very exciting and comprehensive meeting on the Open Collaboration Services Specifications/API update. We added few new modules/properties to support the needs which are currently arising.
In the evening, had to skip dinner as everyone else went to had, and I couldn't locate them :-/ ...read more...
When I give a talk, I usually take people in the audience as examples. This is why people who know me usually sit two or three rows back if they possibly can help it, or all of a sudden they’re likely to be labeled the Evil Software Corp. or something worse. "You there, you’re BSD licensed, and over on this side we’re GPL, right?"
Usually these things work out OK, but when people end up associated with companies, I do make mistakes. So the Fedora guy (not rrix, Jakub, I think) with a red hat on in the audience was my example for companies that might be concerned about the effect of the GPLv3 on their ability to ship KDE as part of their embedded products. That’s utter bollocks, though. Red Hat have been one of the bigger GPLv3 supporters throughout the process, and they ship plenty of GPLv3 products. So scratch that example, should you watch the video. Next time I’ll pick someone with a different-coloured hat. other than that, I think the talk went pretty well.
Akademy just keeps getting better and better, and this year's location couldn't have been more perfect. The Demola office, if it could be called that, is the perfect hackspace. Lots of tables strewn over the place, no partitions, sofas to relax on and even a retro arcade game! Yesterday and today and the rest of the week will be hackdays and BoFs, so there isn't really much to report. But at
The presentation tools already work on KPresenter since about a year. You can put blackscreen on it, highlight or draw during the presentation, which is fun. We implemented these features as ervin’s slaves students during the university year (2008-2009).
On the first picture the drawing tool is used. You can see the different colors and line sizes. On the second picture, the highlight mode is used. Some users experience was, “oh that’s cool, can I use it with my wireless remote presenters ?”. My answer: “Which keys are on your remote ?”. So now the shorcuts are configurable in the settings and you can use any remote keys you want. Enjoy !
I'd love to learn how you use KDevelop, what you use, what is your workflow, etc. If you're here at Akademy and up for a quick user testing session, grab me at any time (currently I'm at Demola). If you don't know how I look like, ping me at irc (nick: adymo, #akademy and #kdevelop channels).