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System & Utilities

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Johan Thelin: Pre-vacation Stress

System & Utilities

It has been a long time since I blogged last. Life has been chaotic, and as June closes to an end, it is getting worse. However, I’ve promissed myself to clear all current projects during June (apart from some continously ongoing stuff) to have a fresh start after my summer vacation.

Loads of exciting things are happening this fall. Some highlights are:

  • I will start working full time at my new employer, Pelagicore.
  • FSCONS will take place, and this year with more technical contents than ever and a specialized embedded track which I’m co-organizing.
  • I will continue with my QtLunch concept. If you are in the vicinity of Gothenburg and want to learn more about Qt and enjoy a good meal with fellow Qt users, drop me a mail!
  • I will blog more frequently… :-)

Подробнее | Разместил: Planet KDE | Дата: 17.06.2010 | Прочитано: 647 | Комментарии

Gilles Caulier (cgilles): Tutorial : How To Compile digiKam Under Microsoft Windows Seven

System & Utilities

This tutorial is dedicated to guide users who want to compile current whole digiKam implementation from KDE subversion repository under Microsoft Windows.

I will use Windows Seven and KDE 4.4.1. Windows system is installed to C:, and an empty 10Gb hard drive partition E: is ready to use for KDE4 and digiKam.

Note: this tutorial can be also used under Microsoft Windows XP and Vista.

read more

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 639 | Комментарии

Jos Poortvliet: Flameworthy LinuxTag Notes

System & Utilities As I kind of promised in my previous blog - here some notes from LinuxTag, worked out in an opinion :D. Now this blog is different from my usual ones. While I do write about strategical stuff, I try to stay away from controversial things. Not this time, sorry.

KDE in the early days
At LT I spoke with quite a few interesting people, including Georg Greve (the dot will feature an interview with him soon) and Matthias Ettrich (who started this whole KDE thing). The latter had a fairly interesting opinion about his 'kid'. After we started talking about stuff not for this blog (mostly politics and economics) we came on the topic of why he started the KDE project.

Basically, it was to give the common user access to the freedom and power of a better platform (Unix/linux). When Gnome started he was fine with that as some in the KDE community moved over there and added a whole bunch of features he didn't want in KDE anyway. But at some point, Gnome more...

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 657 | Комментарии

Aurelien Gateau: Kdenlive rocks!

System & Utilities

Last weekend my daugther participated to her first school race. She performed well and enjoyed it quite a lot. As a loving dad, I was there to record the performance with my video camera.

Not willing to bore relatives to death…

Since I pity those who get trapped into watching raw video footage (it’s even worse than raw photo footage, isn’t it?), I decided to create a simple montage to make it more enjoyable. I remembered playing with Kdenlive back in the KDE3 days, but haven’t had the occasion to play with the KDE4 version. I was really pleasantly surprised. After closing a few docks (I like simplicity), the interface was quite enjoyable. I especially appreciated the subtle hover animations to add transitions and to crop a sequence.

I see white artefacts…

It was all great except for one thing: the preview was filled with small white artefacts. I initially ignored it because I thought it was a tiny preview bug, but the artefacts were also present in the rendered video… After some more...

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 619 | Комментарии

Thomas Thym (ungethym): Calling for help

System & Utilities In the last years I was hunting the secrets of successful open source communities (for my PhD thesis). The analysis of the principles of those fantastic communities is done. The next (and last step) is:

How could the positive effects of open source communities be transfered to classical organizations. Of cause I have some ideas but I think it would enrich my work if I could discuss those ideas with people from "real life".

Most people are happy to live in an self-determined, passion encouraging, fearless "open source community environment" but are not convinced to privde such an environment to their subordinates, because they fear to loose control etc.

It wouldn't be so difficult to get interviews with empleyees or lower management. The problem is, that these groups generaly like the idea to have such a workenvironment, too, but have very limited possibilities to let their dreams come true. (And it is easier to impress the professors with the opinion of somebody from top management.)

This would be the perfect interview / discussion partner for me: more...

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 648 | Комментарии

Guillermo Amaral (gamaral): [KDEMU] Paul Adams

System & Utilities

This week on a humongous episode of KDEMU I talk to Paul Adams, Mr. Green Eggs himself; we talk about KDE PIM, Kolab, Akademy and his love for braveheart.

Check out KDE and the Masters of the Universe – 2010-06-15 and comment!

Don’t forget to comment in the show page or follow @gamaral and @padams on Twitter/ Let us know what you think!

To learn more about this show or all our others shows in the Webbaverse Broadcast Network, visit .

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 570 | Комментарии


System & Utilities

It’s been GSoC season for over a month now and I haven’t blogged, so now I’m going to try to fix that. After last year’s Multilevel playlist sorting project, one of my proposals has been accepted again for GSoC 2010: I’m going to implement on-the-fly transcoding in Amarok.

Amarok is a music player and manager built around very general concepts of tracks and media sources. The collection tries to decouple the format from the data itself and presents the music as tracks (with metadata) rather than files. In other cases, music isn’t even stored in local files. These concepts, and others, allow one to truly rediscover music through seamless internet sources and media devices integration, and the user in fact doesn’t have to care where the actual data comes from. The many sources at one’s fingertips are accessible in a consistent way and playable from the playlist.

However, even in this day and age of stuff in the cloud, there are situations in which the user still has to worry about media formats, e.g. more...

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 595 | Комментарии

Jos Poortvliet: LinuxTag from my view

System & Utilities So I finally took a little time to blog about LinuxTag. Still a lot of writing to do/finish (count on a bunch of articles and 1 or 2 longer blogs from me) but I should give a little shout out as to how amazing LinuxTag was.

Yes, for me it was amazing. Last year wasn't that useful (even though it was fun, maybe even more than now) but this year we spoke to a huge number of visitors, got quite a few to sign up for the supporting membership (and hopefully convinced many others to sign up later on), got away with a lot of business cards to follow up on and spoke with many other FOSS people. And as usual, there was a lot of hugging. I'd complain if there wasn't (must admit I had to surprise-hug a few ppl - what's wrong with a hug?).

Eckhard did a good job at organizing the booth more...

Подробнее | Разместил: Planet KDE | Дата: 16.06.2010 | Прочитано: 661 | Комментарии

Justin Kirby (neomantra): KDE at SouthEast LinuxFest

System & Utilities

Our booth setup at SELF 2010, complete with a 1990's CRT monitor. We kick it old school!

Celeste and I were down in the sunny and HOT state of South Carolina for this year’s SouthEast LinuxFest.  Before I get started I want to send out a big thanks to the Upstate Carolina LUG.  These folks have been awesome!  They picked us up at the airport, took us to the hotel/conference, and were super responsive about helping us when getting the booth setup.  I’d love to see these guys put in a proposal for Camp KDE at some point because they’ve definitely got the ability to organize a conference quite well!

Our KDE gaming compatriot in action

Anyhow, Saturday was a pretty long day but very productive.  We had to wake more...

Подробнее | Разместил: Planet KDE | Дата: 15.06.2010 | Прочитано: 653 | Комментарии

Sven Burmeister (rabauke): KDE: Week 23

System & Utilities

This week I tried to find the reason for yakuake taking >3 seconds before it slides down the first time. I thought that changing the default black text on white ground profile to one with white text on black ground slowed yakuake’s sliding down quite a bit. But that might have been an illusion since changing it back did not improve anything. However I guess that the graphics driver plays a part in this issue since the delay seems shorter on Intel graphics than on Nvidia (binary driver).

Also I found some fellow sufferers that experience the same plasma hangs as soon as the network connection is lost. Who would think that plasma becomes really slow without using the CPU just because my network cable slipped out of the plug.


Unfortunately I could not attend this week’s KDE IRC meeting at openSUSE thus I can only quote some things from the meeting minutes.

  • nepomuk will be off by default in 11.3. Not only its indexing service aka strigi but all of it. more...

Подробнее | Разместил: Planet KDE | Дата: 15.06.2010 | Прочитано: 707 | Комментарии

Rafael Fern

System & Utilities

This year has been amazingly busy. I had some subjects (9, to say) that required lots, and I mean lots of laboratory time to get done, and finally I got over them pretty successfully. The good thing: they didn’t had exam. The bad thing: until the end they take your time out to study subjects that have final exams.

So after last exams this week (still one to go, next week), I’m really glad to be back with this maravelous community. I am strength-full to work like never before.

I am now working on Artesanos del Software, and I am really glad I have been given green-light to work on Qt/KDE SC. This is also great since I’ll be working as a scholar for almost three months in order to get lots of hours done and get them recognized by the University as working hours.

So my really full-hearted wish is to work hard in KDE SC and do everything that is possible from my side.

PS: I am really sad I won’t be able to attend Akademy this year. more...

Подробнее | Разместил: Planet KDE | Дата: 15.06.2010 | Прочитано: 495 | Комментарии

KAlarm 2.5.2

System & Utilities

KAlarm lets you schedule personal messages to display, audio files to play, commands to execute, or emails to send.

Подробнее | Разместил: KDE News | Дата: 14.06.2010 | Прочитано: 456 | Комментарии

Hugo Pereira Da Costa: Moving windows around

System & Utilities A new feature added to Oxygen for KDE SC 4.5 is the possibility to move windows around by clicking (with left mouse button) in any of its 'empty' area and dragging it around, in a way that is similar to what one usually does with the window decoration titlebar.

How this works is illustrated in the following screencast (sorry for the poor quality of the video):

This feature has been present in bespin (another kde4 widget style) for quite a while. It has been ported (and largely rewritten) to Oxygen, on popular demand.

It is believed to be very useful, notably on touch-screens, for which dragging windows from the sometimes tiny decoration titlebar might end up being problematic.

Now, this is still quite experimental and conflicts might exist between dragging the window and some other mouse actions for some applications. I hope we can identify, and fix, most of these conflicts in KDE SC 4.5 beta cycle, so that a well crafter and fully functional feature can be more...

Подробнее | Разместил: Planet KDE | Дата: 14.06.2010 | Прочитано: 553 | Комментарии

Lamarque Souza (lamarque or lvsouza): Full support to Modem Manager 0.4 in Solid

System & Utilities I have finally finished to implement Modem Manager 0.4 specification in solid. I still need to add more comment in the source code and implement more caching to prevent stress in the DBus bus. Now I need help to test the implementation because my Sony MD300 modem supports less than 1/3 of the specification. Nothing from interfaces Location, Cdma, Gsm.Contacts, Gsm.SMS, Gsm.Hso and Gsm.Ussd work with my modem, but I have implemented them anyway. I am going to commit the patch after trunk is opened for new implementations, which AFAIK is after the first KDE SC 4.5.0 rc release next week.

For those who likes statistics, the patch adds 128 new files, changes other 23 files in trunk, is 400 KB in size and took me eight weeks to reach this stage.

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 604 | Комментарии

Milian Wolff (milianw): KDevelop Webdev plugins merged into Quanta GIT

System & Utilities

Quick note:

I’ve just merged all webdevelopment related plugins except PHP & PHP-Docs into Quanta git. You can get them all in one place now by cloning Quanta:

Since I also moved all halfworking plugins to UNPORTED (they don’t get installed), you should be fine by just installing all of Quanta to get the plugins. If you only want one of them, going into it’s subfolder and building it standalone should hopefully still work though.

In other notes: Thanks to Ruan Styrdom for starting work on a PHP formatter plugin for KDevelop. It uses phpStylist and it’s already somewhat working. Awesome :)

/me is off to more GSOC hacking, bye

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 657 | Комментарии

Kevin Krammer: KMail migration in action

System & Utilities

After blogging about our progress on KMail's data and config migration to Akonadi for a couple of times, I felt that it was time for a screencast showing the migrator in action.

The KMail test setup migrated here has most of the common account types: POP3, IMAP, Disconnected IMAP, local MBox file and, of course, KMail's local folders.

After starting up, the migration tool checks whether it will be dealing with one or more Disconnected IMAP accounts. If there is at least on unmigrated account of that type, just like in this test scenario, it asks the user how to handle the old cache after import.

Bascially, a Disconnected IMAP account in KMail has local copies of the mails on the IMAP server, so it can access them even when offline (hence "Disconnected IMAP").
The migrator imports these copies into Akonadi's cache so you don't have to download them again after the switch to KMail2.

Note:normally you don't need the old copies anymore, but for example if you want to test migration several times, you will want to opt more...

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 600 | Комментарии

Albert Astals Cid (TSDgeos): European politicians gone mad

System & Utilities So, i've been trying to ignore the issue, but it is really difficult, so here is my rant, European politicians are about to approve a law that will force search engines to store searches for some time (from 6 month to 2 years). The official reason for that is creating a "early warning system against paedophiles and sex offenders".

There are lots of fishy things in that law:
* Do you really need from 6 months to 2 years of searches for a "early warning system"? I find that a bit contradicting at least
* When someone uses the "think of the children" reason, they are usually going for the lowest instincts of human, because obviously anyone opposing to protect the children is immediately evil. Well, that is going to end up forcing children to stay at home, or even forbidding them at all that way, with no children they won't be molested, right?
* The other thing that you get when you say that you oppose to such intrusive measures is "you should not be more...

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 638 | Комментарии

Apple and Nokia partner on web browser Jun 13, 2005

System & Utilities

Whether this heralds a new range of joint projects between the PC maker and the mobile giant remains to be seen.

Подробнее | Разместил: KDE News | Дата: 13.06.2010 | Прочитано: 584 | Комментарии

Alvaro Soliverez (Hei_Ku): About pragmatics and loonies

System & Utilities

Reading blog posts from Aaron or Jos, I notice there has been a discussion lately about corporate sponsorship and how that may influence the direction taken by KDE.

Also, I noticed some messages in from Jos about FSF and FSFE. That prompted a small exchange between him and me, and it was also the trigger for this post, which is a very personal opinion piece about corporations and free software projects.

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 544 | Комментарии

Tom Albers: Important: Update your email address

System & Utilities

As you all might know or not, KDE is moving to git. With applying for an svn you had the option to choose for a https account with a password. With the move to git now in high gear we have to convert all those accounts to ssh accounts.

What will happen is that we will send every https user personal invitation to go a to a webpage. On this webpage you can upload your public ssh key or indicate that the account should be disabled, because you don’t use it anymore.

The invitations will be send in like two weeks. Every invitation that bounces will probably mean that the account will be disabled. So we can not stress enough that you check your email address which is associated with your account. You can find it in kde-common/accounts. You can simply do a checkout and commit changes to your own entry.

Ssh users dont have to do anything, your public keys will migrate automatically. Https users, please wait for the invitation, as we will automate most more...

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 596 | Комментарии

Michael Krog: Qash is online!

System & Utilities It's finally here. Qash is officially online.

What does it mean?
I means that everyone can jump to and create their own store for free - and easily have their own cash register.

What now?
We have a list of features on our roadmap which we will implement over time. One of them is creating a default platform for the hardware we are going to sell(which may very well be a KDE-based platform).

Подробнее | Разместил: Planet KDE | Дата: 13.06.2010 | Прочитано: 618 | Комментарии

Jens-Michael Hoffmann (jmho): How to install multiple versions of Marble

System & Utilities

Sometimes it is helpful to be able to have several versions of Marble installed and have these versions separated. One possibility is to use different user accounts, one for each Marble version. Another possibility using only one user account involves some minor changes to the Marble source. I’m going to explain how to do the latter. As examples we use the Marbles of KDE 4.4, 4.5 and trunk.

For a Marble version being installed separately it has to have a separate configuration file, a separate user data directory and a separate installation directory. For the first and second part we have to modify the Marble source, the third part is being done by the build system. At the moment of this writing development for KDE 4.5 takes place in svn trunk while development for kdeedu 4.5 (which includes Marble) takes place in the 4.5 branch.
So without further ado:

Setup different kdesvn-build configurations per branch

KDE 4.4.x (Marble 0.9.x): $HOME/.kdesvn-4.4-buildrc

source-dir ~/kde-devel/kdesvn-4.4
kdedir ~/kde-devel/kde-4.4
qtdir /usr
branch 4.4
svn-server svn://
cmake-options -DCMAKE_BUILD_TYPE=debugfull
end global

module more...

Подробнее | Разместил: Planet KDE | Дата: 12.06.2010 | Прочитано: 839 | Комментарии

Danny Kukawka: Hacking osc

System & Utilities
Last month I found some time to take a look at osc to fix issues and add some stuff I was missing since I have to work with and the SUSE internal buildservice (e.g. for updates and maintenance of our enterprise products).

Yes, I know it's some weeks old and now integrated, but anyway. Here is what I've done:
  • added new 'osc getbinaries REPOSITORY' to checkout the RPMs for all architectures, including the source RPMs, into subdirectories [here]
  • fix 'osc my' to get the apiurl from checked out packages if possible [here]
  • make sure that global option -A always works too in a directory with a checked out package [here]
  • add run_pager() and make osc log/diff work like git log/diff (call less by default to display the result of diff) [here]
  • fixed some close() statements and some other warnings [here] more...

Подробнее | Разместил: Planet KDE | Дата: 12.06.2010 | Прочитано: 608 | Комментарии

Ryan Rix (PhrkOnLsh): aseigo is forcing me to blag

System & Utilities

yes, forcing, I’m such an abused little critter, it’s so bad, I’ll need counseling. :(

Over the last few weeks I have been putting the finishing touches on the plasma KPart plugin… It looks pretty good now, but still lacks a bit of the bits to really make it shine, including an API to allow applications to interact with the Plasma APIs on a more intimate level, rather than just "load widget foo, and I’ll get out of the way".

The current state of our Plasma dashboard is looking pretty good. And, what’s that? A special dates plugin! Thanks to the really awesome Akonadi and Calendar plugins (I owe fregl massive amounts of cookies/hugs for the calendar dataengine improvements!) it was mostly simple for me to write that widget. As you can tell, it still needs some layout lovin’, and the code is kinda nasty in some places, but it’s a great start.

That’s where I am this week :)

Powered more...

Подробнее | Разместил: Planet KDE | Дата: 12.06.2010 | Прочитано: 596 | Комментарии

Victor Carbune (carbonix): KStars now has a view of its own for SkyObjects

System & Utilities This week was the first week of our examination session at university. Even though I had a quite hard exam on the beginning of the week, I have worked on a class which will be used in KStars for displaying lists of objects, having a particular context menu, adapted for KStars SkyObjects.

Yesterday, together with Dragos, a friend and class mate who is currently a Gnome Google Summer of Code Student we decided to do a whole day coding sprint on our projects, since university exams tend to keep us temporary away from our work.

I consider the overall a result interesting and really useful. The class on which I've worked, KSObjectList extends QTableView and will be used wherever a list of SkyObjects might appear in KStars. For the moment, it replaces the standard QTableView in the Observing List (a tool in KStars which permits users to plan their observing session) and will be used in a more complex search query dialog on the database.

KSObjectList current has the following:

Подробнее | Разместил: Planet KDE | Дата: 12.06.2010 | Прочитано: 721 | Комментарии

KOffice on Linuxtag

System & Utilities

My yesterdays presentation about KOffice Version 2 at the Linuxtag was received overhelming good.

Подробнее | Разместил: KDE News | Дата: 12.06.2010 | Прочитано: 660 | Комментарии

Cornelius Schumacher: Hackweek V: Graphical SUSE Studio Client

System & Utilities Hackweek V is over and I can happily report success. My graphical SUSE Studio client is functional and has the first cool features implemented. The focus of the client is not to duplicate the functionality of the SUSE Studio web interface, but to provide those features, which are hard or not possible to do on the server. This is stuff like managing downloads, running and deploying appliances locally, or native access to testdrive. From this list I got the native testdrive done. On the click of a button, the client starts a testdrive on the SUSE Studio servers and then connects with an embedded native client. This gives great performance and a very smooth and integrated experience.

The client uses the HTTP API of SUSE Studio to talk to the server. This way it gets the list of appliances and builds of a user and can operate on this data. It more...

Подробнее | Разместил: Planet KDE | Дата: 12.06.2010 | Прочитано: 606 | Комментарии

Nikhil Marathe (nsm): GSoC Week 4: Experimenting with Collections

System & Utilities I didn't write a post last week, and it looks really bad in my form completion :) but I didn't have any user visible updates at all. This week is much better. First the visual then the text.That's cover art fetched from the UPnP device when the Content Directory has it available!Other updates include smoother full and incremental scanning of the Collection. This is one area which needs a lot more

Подробнее | Разместил: Planet KDE | Дата: 11.06.2010 | Прочитано: 614 | Комментарии

Abhishek Patil (_abhishek): Using vtkRenderWindow with QGraphicsView

System & Utilities

We are about to begin on a project that requires us to have floating and transparent widgets over VTK render-window output. About a year back, we had wanted to provide something similar to VTK Designer 2. We wanted users to have the ability to load UI (created using Qt Designer) directly on the VTK output window. At that time (you can follow the thread here) we were unable to come up with something satisfactory.

With the recent changes in Qt, it is now possible for us to have vtkRenderWindow within QGraphicsView. Infact we can now have vtkRenderWindow paint on to a QGLWidget viewport of QGraphicsView. Thats exactly what the vtkQtGraphicsViewRenderWindow class allows us to do.

The class is defined as follows

#ifdef Q_WS_WIN
#include \"vtkWin32OpenGLRenderWindow.h\"
typedef vtkWin32OpenGLRenderWindow vtkRenderWindowClass;

#ifdef Q_WS_X11
#include \"vtkXOpenGLRenderWindow.h\"
typedef vtkXOpenGLRenderWindow vtkRenderWindowClass;

class vtkQtGraphicsViewRenderWindow : public QGraphicsView,
public vtkRenderWindowClass

vtkQtGraphicsViewRenderWindow(QWidget* parent = 0);

Since vtkQtGraphicsViewRenderWindow is a subclass of both QGraphicsView and vtkRenderWindow,
- we can add any QGraphicsItem to its scene. more...

Подробнее | Разместил: Planet KDE | Дата: 11.06.2010 | Прочитано: 579 | Комментарии

Adenilson Cavalcanti (Savago): libgcal 0.9.4 released

System & Utilities
Sweet! But what the heck is this ‘libgcal’ thingie? For starts, the name can and is misleading, since it should read as ‘library for google calendar’ but in reality, it implements both Contacts and Calendar google data protocol.

When I got it started, back in February of 2008, it was supposed to implement just calendar, but later on I realized that adding contact support only required +25% of code on it (thanks for well modular software design). Back then,  there was no other good alternative for any C/C++ programmer that would fit the following requirements:
  • easy to use;
  • well documented;
  • few dependencies;

So, I got my library started! After studying the google data protocol 1.0 (at the time) for while, I realized that using XPath would make my life way easier than say, browsing through the DOM tree searching for the attributes and tags that I wanted.

At that time, Qt didn’t have support for XPath (it only started with 4.5), so I went with libxml. For networking I more...

Подробнее | Разместил: Planet KDE | Дата: 11.06.2010 | Прочитано: 924 | Комментарии
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