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 Last week, I received two new toys for my birthday: a Philips MP3/MP4 player from my sister and a ZTC (or CECT) C2000 phone from myself and partly from my mom. 
The Philips SA3225/97 player is really just a simple device. A bit too simple even. One of those devices that does one thing (or a few things) does them well (hopefully): music (MP3, FM Radio) and video (in a proprietary SMV format) player, text reader, recorder, picture viewer. That’s it. You will have to manage those files, specially your music, elsewhere. No problems connecting to GNU/Linux and KDE it’s simply seen as a removable USB device. Oh, and of course, it can’t play Ogg Vorbis.  
Now my other toy is a whole different story. It’s a ZTC (or CECT) C2000, more known locally as “one of those China phones”. Quite sad that quite a number of these phones (some of which are actually good), are being re-branded and marketed as cheap Nokia and iPhone clones ...read more...
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| Kind of a quiet week the past week in KWin--a few bug fixes, some backend work and a couple of small (But extremely useful) features thrown in as a bonus. - "Active mouse screen" setting renamed to "Active screen follows mouse".
- Some new common settings in the main desktop effects panel, now it's easier to select which effects are used for window switching (Alt+Tab) and desktop switching without causing any conflicts as well as configuring the animation speed of all effects at once.
- When using the present windows effect in window switching mode the mouse can now be used to switch to a window immediately.
- Restoring a maximized window that was dragged across multiple screens restores it to the screen that it is on instead of where it was maximized.
- Prettied up the desktop cube/cylinder/sphere admin panels a little.
- Added compositing self-test to allow compositing to be enabled by default on systems that can support it (Buggy, needs testing)
- Undocking utility windows no longer applies the fade-in/scale-in effect to them when the mouse button is ...read more...
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| So, there were a few comments on my last blog post regarding the distribution of my data.... If the data is normally distributed then we expected 95% of the data points to lie within 2 standard deviations of the mean. In which case the high of July 19th and the low of July 26th would be at the extremes, but still within expectation. However, this still relies on the data being normally distributed. There are statistical methods for testing how well data fits a particular distribution.... Or I could just draw a picture.... 
Histogram of commit data Looks normalish, kinda, like. Sort of.
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| So yesterday was my first day I was paid to develop software with Qt. I've previously lamented having to work with Borland C++ (which is truly horrible and obsolete) on Windows. That lament make Andr
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 In a very useful misuse of Launchpad, I’ve opened an arbitrary but (Bug #263827: KGrubEditor QA Testing) to help keep track of how many people test KGrubEditor 0.8.1 for the Intrepid release and any other minor issues. Konstantinos has done great work KGrubEditor, and now we need some hardcore QA to make sure there aren’t any critical bugs that were missed by the small group of alpha testers. Things to test: - Add, Edit, Remove an OS
- Reordering an OS, with and without Automagic
- Password management
- Configuring other options such as menu background and style
If you try KGrubEditor, post a comment on what you tested. Please report crashes as new bugs. Bug 263827 will be closed once we get a suitable number of testers and Intrepid is released.
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 If you were having issues filing bugs for windows related things on bugs.kde.org then you will be glad to know that I just fixed those problems.
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| Summer is gone. No more pictures or travelling, lack of time for much opensource... that's life. I will also be moving soon, and that will make my spare time even shorter. Lets hope there will still be some spare time during the weekends! In the mean time, I'm seeing that many photographer applications and code are being added hideously to svn. I really wish those projects got more attention and advertising (and thus help), since, given the skills required for coding them, they require quite a few resources. I hope to be able to help those myself with some code, now and then. That said, I'm pondering what to do with the photo tutorial series. planetkde is eating too much bandwidth off my server, by showing the whole blog body on each hit. That makes for 12GiB transfer per day (around 6-7k hits, I think) and it's unnacceptable for me, so I will have to stop them for some (short) time and try finding a proper workaround. [o ] click!
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| August 31, 2008 - 2 hours, 1 minute ago Share Comments Exaile is a music player aiming to be similar to KDE's Amarok, but for GTK+ and written in Python.
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 Funny little story... I was profiling with valgrind recently and was shocked to discover a huge hiccup in the painting performance of my QImage raster based app. There was this repeated call to QPainter::drawTiledPixmap() that was soaking up CPU cycles. It was a true mystery as I had thought the canvas of my app was completely QImage based. Not so. You see, I had created a QBrush with a QImage texture and called QPainter::eraseRect() with it in a fairly important path in my code. What I didn't know was that QPainter was silently turning my QImage based textured brush into a QPixmap with QPixmap::fromImage() and using that to operate on my QImage based source device. I have no idea why QPainter would decide to do this other than the mistaken assumption that QPixmap is always faster to draw. And maybe that is true in some general case, but surely not when the device you are painting ...read more...
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| Zack Rusin of KDE has said KDE4 will have full support for widgets from OS X's Dashboard .
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| Zero as when it does not work. And that's sometimes zero fun. There is a plan to enable compositing by default in openSUSE11.1 when possible (just like e.g. Ubuntu already does), so I've been again pondering the idea of enabling KWin's compositing by default in SVN too, just like it was in pre-4.0 times. The "when possible" part is of course the problem. Even openSUSE11.0 is already ready for compositing, assuming proper driver is correctly installed, but there still may be possibly some problems with some setups, and of course upstream KWin does not have the comfort of knowing the underlying stack is configured properly. KWin is actually quite robust when it comes to handling compositing failures, so if it detects a problem, compositing will just get disabled and KWin will keep going on. And here the "detects a problem" part is the problem. For example if AIGLX is not working, this may result in the only-white-windows-with-shadows bugs, which is caused by the X stack losing window contents somewhere. But, strictly technically speaking, from KWin's point of view everything is ...read more...
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 Ubuntu Developer Week happens on IRC next week. I'll be giving my introduction to PyKDE with a WebKit web browser tutorial. There's plenty more interesting talks, see you there.
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 There’s enough changes in the upcoming kdesvn-build release to bump the version to 1.7 instead of another 1.6.x release. Here’s a sampling: - Improved latest log directory support:
Normally kdesvn-build stores the logs for a build run in a directory named in the form YYYY-MM-DD-ID which is kind of unwieldy to type in. So what kdesvn-build would do is to create a symlink called “latest” which would point to the last build run. So an error that just occurred in kdelibs could be easily found, in ~/kdesvn/log/latest/kdelibs (the path may vary, kdesvn-build will tell you the exact location). This is cool and all but if you had multiple modules you wanted to look at then the behavior of “latest” was not normally be ideal. For instance let’s say there’s an error in kdebase and kdemultimedia. You fix kdebase and confirm that by running kdesvn-build just on kdebase. Now when you want to see what was up with kdemultimedia you can’t, as the latest symlink is pointing at the wrong ...read more...
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It was hubris, during a phone call, that prompted me to say we'd port Inkscape to Solaris while we were doing other stuff.
All in all I've spent about a day with GLib and GTK C++ bindings, followed by a day with Inkscape. Stefan did a lot of the heavy lifting in bezier.h, which combined variable sized arrays with non-lvalue operator & and some other ugliness. The Inkscape codebase isn't otherwise all that unpleasant to work with. With my legal hat on I might suggest making the license headers more explicit and detailed, but that's not something essential in a porting effort. There's other code consistency things and at least one file with ^M line endings, but again, that doesn't really impact on the code itself.
Typical things which I consider GCC-isms, like mismatching const between declaration and definition occur, as well as the 'happy constructor' pattern, but now as a type name, so I found NS::T::T* r where NS::T* r is intended. I've got that filed as "weirdest thing" for now.
...read more...
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 It's Friday now and hackweek comes to an end for me. It was exceptionally fun and we got some decent work done. The team was fabulous, a combination of SUSE and external community guys. Frank was here for the whole week and worked on the API and the opendesktop.org implementation of it. Sebastian joined us for two days and we had a lot of interesting and useful discussion how to put Nepomuk into the picture, Dirk started to write a Plasmoid for showing the activity log on the desktop, and Zack was here this morning giving us moral support and inspiration. We didn't completely realize the "Social Desktop" yet, but we laid some groundwork. The most visible result currently is this screenshot: 
It shows some people from opendesktop.org on my desktop. The interesting bit ...read more...
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| I'd better start by admitting that I'm a fan of KDE. It's not because it works like Windows, but for the quality of the tools available.
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Today I added again some more TabletPCs to SaX2. With my patches SaX2 and openSUSE now supports also these machines: |
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 Amarok 2 has two scripted services that are really cool. For one SeeqPod, that lets you search for any kind of music on the web and listen to it in Amarok. And the other one is LibriVox, that integrates the LibriVox service. LibriVox offers free audiobooks of public domain books. Both services are great and definitely deserve to be in Amarok 2.0. The problem is that they were written a few weeks ago in Ruby. Now they need to be ported to QtScript as that is the only scripting language we allow for internal scripts to reduce the headache of script dependencies especially keeping the Windows and Mac releases in mind. Among all the stuff that needs to be done before the release of Amarok 2.0 those two scripts were kinda forgotten until now and really need some love. If ...read more...
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| For the last 5 years a huge focus of my work has been on fonts and text. You know you went to far when you can tell the difference between a Helvetica and an Arial by just looking at the printed ‘a’.
Its unsurprising that people end up asking me what the difference is between leading and linespacing, why the customer claims we don’t do kerning for that specific font, why WYSIWYG actually fails for most people. I naturally can’t be because I’m the only one stupid enough to claim to know this, right?
I considered claiming ignorance, but then my weird behavior may no longer have any reason, so that would just make me a worse freak. Instead I just wrote an application that shows everyone how text works. And I’ll write a blog or two about what you can see on screen and how that relates to your questions even before you have them. Genius or what?
So, here is an example text;
let me quickly go over the ...read more...
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| While browsing through kde-look.org I found a cool idea for visualizing a daily agenda. 
This reminds me of the Akonadi architecture diagram and I even have code (probably not up to date) for drawing this kind of diagrams. So I guess it would be doable without too much effort to implement a daily agenda viewer like this. Would be a fun project.
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| There have been some good news regarding the distribution specific packages. Thanks to many of you, packages exist for most mainstream distributions - Kubuntu, openSUSE, Mandriva, Slackware, Gentoo and Arch. I haven’t heard anything about Fedora and Debian yet, so any info would be appreciated. Note that I haven’t tested these packages. Apart from that, there is now a source package for those of you that don’t like using SVN. Most of the links to packages are available at the old address http://lancelot.fomentgroup.org/download. Mandriva’s package is in cooker. Cheerio, and thanks for all the fish (help).  p.s. Some of you have had some problems with the Parts applet. I’m not sure yet what is causing it, but will investigate it.
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| I have just committed a speed fix for KFadeWidgetEffect. We do use very often the method setOpacity() which results to be really slow on current QPainter (we really hope this will be fixed on new versions of Qt). You can read this techbase tutorial, written by Fredrik H
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| A while back I blogged about querying dbpedia with sparql. The queries in that blog were pretty simple. Today, I present a more complicated example. SELECT ?a, ?long, ?lat WHERE {
<http://dbpedia.org/resource/Borne%2C_Overijssel> <http://www.w3.org/2003/01/geo/wgs84_pos#long> ?centerlong ;
<http://www.w3.org/2003/01/geo/wgs84_pos#lat> ?centerlat .
?a <http://www.w3.org/2003/01/geo/wgs84_pos#long> ?long ;
<http://www.w3.org/2003/01/geo/wgs84_pos#lat> ?lat .
FILTER ( -(?long - ?centerlong)*(?long - ?centerlong) - (?lat - ?centerlat)*(?lat - ?centerlat) > -0.01 )
}
This query gives you all items in the english Wikipedia near where I live. You could also look for stuff near Gran Canaria or Berlin.
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Today I've extended SaX2 to support also the Touch devices of the Wacom USB TabletPCs since the touch input devices have now persistent /dev/input/by-id links (see my last post). My SaX2 version supports now these new machines: - HP Pavilion tx2000 series [2]
- HP Pavilion tx2100 series [2]
- HP Pavilion tx2500 series [1]
- generic Wacom USB TabletPC (added touch device to existing entry) [3]
You can get my SaX2 package for openSUSE 10.2/10.3/11.0/Factory from my Build Service repo (be sure that you also update udev from my repo). As soon as the patches for udev are gone upstream also the SaX2 patches go into the upstream repo. Let me know if you have any problems with the new entries on these machines. If you e.g. still need to calibrate the input devices manually tell me the BottomX/Y and TopX/Y values and I update SaX2. |
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| I don’t consider this a bugsquash, but I could do it perfectly. However, after fixing toolbar positioning problems on kdelibs, I just saw some applications (probably 3 out of 7 that I started) not doing stuff correctly (ignoring my toolbar positioning preferences). As an example, I fired up: konqueror, gwenview, kate, dolphin, kwrite, umbrello, kopete and kontact. Konqueror: fine. Gwenview: fine. Kate: fail. Dolphin: fine (after some fixing I did yesterday), it would have been a fail. KWrite: fine. Umbrello: fail. Kontact: fail in certain situations (if the component modified is the one being loaded on start). I don’t consider this is good stats. For that reason I want you to contribute, by filling on bug reports which applications are not restoring correctly your preferences. Please note, this is very important: i am only asking for those applications that are not storing correctly any toolbar/dockview position/configuration (like text next to icon, text below icon)… And please, later email me with the bug report. I am interested in fixing all this sort of bugs. If libraries are fine, but applications are ...read more...
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| "The KDE community has finalized yet another update to the 3.5 series. While not a very exciting release in terms of features, 3.5.10 brings a couple of nice bugfixes and translation updates to those who choose ...
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| I've told the story before: I started working on Krita because I got a graphics tablet and wanted to paint maps for a novel. Well, right now, I've got another reason to draw a map, to do with our ongoing fantasy roleplaying game soap (running for over a decade now gaming time, and about 35 years in-game time. And you know what? Krita isn't yet suitable for drawing maps with yet, although it's getting great for messing with photographs, sketching and painting. And, actually, map-making software isn't all that close akin to a raster image editor. It's much closer to what Kivio or Karbon are. But there are also dedicated applications. Only one of them is free software software, that I could find: Andy Gryc's AutoREALM. This application started out as for-pay, windows-only Delphi application way back. Then it was open-sourced, and porting was started from Delphi to wx-widgets and C++, before Qt became free software on all main platforms.  Currently, there is some development ...read more...
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| Interestingly enough it seems that there is actually an IRC channel for kde websites, it just isn't populated by anyone. Now, I'm not the overarching authority on all things KDE on the web. But I would really like to see people in #kde-www on irc.freenode.net. read more
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 Not that you could tell from my blog, but I do hack on things other than Plasma as well. ;) It seems that once or twice a year I end up spending some time on the file dialog, and it's apparently that time of year again.
Right now the All Powerful KDE File Dialog has a few unfortunate usability, visual and functionality quirks that diminish it's wonderfulness. (Is that even a word?) I didn't feel like doing anything too major to it as it's a proven model; that and I don't want to spend too much time on it either given all the other things I've got on the go. But still ... It needs a bit of love right now.
After fiddling with it a bit, I dropped an email to the usability list. Discussion ensued, and Peter Penz provided some data he gathered from user testing he'd done with it. (It's very nice how the number of people working on file management stuff has really ...read more...
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Just two fixes, but you really want it as fixes a regression in Form handling introduced in Poppler 0.8.6.
