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System & Utilities

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Post Google Code-in - an exhilarating journey ends

System & Utilities

How long had I been waiting for this to commence - every month, every week, every day passed so painfully slowly - it seemed like eternity. I sometimes felt like a little kid imagining weird things - imagining being in some limbo land where the clock just wouldn’t tick any further.

And finally it happened on the 26th of November, 2012. The Google Code-in ‘rocket’ had launched from the lands of the ‘Google empire’ to many thousand homes where young developers were ready to explore the world of Open Source in the next 50 days of their life. I am one of those students. I’m not exaggerating - seriously. I’m just giving voice to the feelings of hundreds of teenagers who participated in Google Code-in 2012.

After contributing to KDE in GCI ‘11, I was determined that this year I would be doing the same. Thankfully I got this opportunity and I grabbed it with both hands!  

I was able to do 71 tasks for KDE and acquired a lot of knowledge while doing each one of them. And by knowledge I don’t mean ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 16.01.2013 | Прочитано: 672 | Комментарии

Using Conky on KDE – My setup

System & Utilities

I had grown tired of the look of the system meter plasmoids in my desktop. I was looking for a more minimalistic yet complete system information.

Browsing around, I came across several desktop screenshots with Conky and KDE, and I liked them. Previously, I had the idea that it was suited only for Gnome, but these screenshots changed my mind. So I got to the task of finding a suitable configuration to replace my current plasmoids and some blink in the process.

First, I wanted a big clock. I had come across several examples with a big clock on the desktop, and I liked that. This is what I came up with.

conky2Yes, I know there’s a clock on the panel. This one was just for the looks. Here is the conkyrc file for it. conky_clock

Then, on to the real interesting setup, with system information, and weather. The system meters one weren’t hard, save for the temperature and fan rpm. I had to install lm-sensors ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 16.01.2013 | Прочитано: 552 | Комментарии

Mobile Linux Rivals Ubuntu And Sailfish Could Share APIs

System & Utilities

"Linux phone platforms Ubuntu and Sailfish could move closer together along with Plasma Active from KDE, as the groups behind them are talking about using common Application Programming Interfaces in their work on User Interface design.


  
Подробнее | Разместил: KDE News | Дата: 15.01.2013 | Прочитано: 694 | Комментарии

[Help KWin] Create a KConfigXT file for KWin’s configuration

System & Utilities

Just the other day a user in IRC complained about a default in KWin. I thought that the default he expected, is the one which is set in KWin sources. So I opened the respective source file and saw my assumption confirmed. But still the user claimed that there is a different default and I believed him. Further investigation showed that the source code of the configuration module had a different default set. It’s probably like that for years but it shows a problem: the config values are written and read at different places and the hard coded default values might diverge.

This reminded me of the great project we had last year to migrate the configuration of the KWin effects to KConfigXT and of the project to transform the configuration modules in KWin to have ui files. The combination of both calls for a new project: let’s migrate KWin core to KConfigXT. Now this isn’t a project which we will be able to do in one go. So I will split it into ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 10.01.2013 | Прочитано: 554 | Комментарии

QML component API's to come together?

System & Utilities

Just another day at the office...

The #active channel on irc.freenode.net is a place where people from a wide variety of projects that use various common bits of technology hang out. In Plasma Active we do a lot of work with Qt, QML and Mer, for instance; so we have people there from the Mer project as well as various QML focused projects.


Yesterday was therefore "just another day at the office" for us as a conversation between a Jolla (Sailfish) developer and a Canonical (Ubuntu Phone) developer about QML component API started up in the Plasma Active irc channel. Not only was everyone "Ok" with this, but consensus was that it was pretty awesome that we have a space for people to come together like this. People even said that to each other rather than let it remain silently unsaid. Contrast that with the attitude we sometimes see in development communities that discourage such "off-topic" communication between "competitors".




Well, one thing led to another and Zoltán posted an email to the Qt ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 10.01.2013 | Прочитано: 557 | Комментарии

Let's see how the community reacs

System & Utilities

Hi all, this is my first 2013 post. My last post was 5 months ago because I did finish my studies (I'll graduate on March) and I had to do some work so I had no time to blog about Arch or the KDE projects in which I'd like to join (stay tuned!).

Here we come to the reason of this post: I got a mail yesterday from Laszlo Papp:

Laszlo: Hi Andrea,

Qt5 was out a while ago. Do you have any estimation for producing Qt5
packages for Arch? Do you need any help with those?

His request is fully reasonable and expected. Laszlo, you are talking with a maintainer of a bleeding edge distro: I want the latest software before it's released. Knowing that a qt5 package is already available on AUR, I replied quicly:

Andrea: There's no real hurry about that.
KDE will not use qt5 until 2014 (ok, maybe some month before) so there's no
hurry to put qt5 in [extra] IMHO.

The I got another mail from Laszlo:

Laszlo: Well, Qt5 is not just for KDE. ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 10.01.2013 | Прочитано: 560 | Комментарии

More is worse: About Detail in Icons

System & Utilities

A statistical analysis shows that icons with less detail score better in terms of usability.

It seems to be an easy truth: Too much detail in icons confuses the users. So we wondered whether we could find any evidence for this truth in the data of our large scale test of the LibreOffice Icons.

First we did an expert rating and sorted the icons in two groups, depending on the level of detail in the icon.

Group 1 – Low Detail Icons

copycutnavigatornewnonprintingpdfredosavetableundoDocAsEmail copy cut ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 10.01.2013 | Прочитано: 609 | Комментарии

Activity Blobs

System & Utilities

Albert’s item about Okular contributors (a great idea to thank those who contributed their time over the past year — and I’ll say thank you to all the Okular developers who make my document-reading-life a nicer place) and also Seif writing about Mozilla contributions spurred me to quickly hack together a tool to give an idea of the activity in one of KDE’s git repositories. It’s much like the venerable green-blobs graph that Paul Adams makes. It’s just an indicator — I’ve written about this time and time again, the graphs from one repository cannot be compared with other repositories, and the best you can quickly conclude based on these pictures is whether development activity in a repository is carrying on “as usual” or has changed.

So here’s a graph of Parley, a small program that is probably considered feature complete.
This is three different graphs mashed into one. There’s no dates on the graph, but it covers roughly the past year of development.

  
Подробнее | Разместил: Planet KDE | Дата: 09.01.2013 | Прочитано: 604 | Комментарии

System & Utilities

Over the Christmas season we bought an electronic drum kit so that my daughter can practice at home; she’s 9, but I hope that some day we can play “Ace of Spades” together. But the most exciting item in the large box was the empty box! I have not opened it up to ascertain if, indeed, the box is empty. Who knows, it might even contain KDE 4.9.3 packages for FreeBSD.

ObKDE: I found David Narváez post about the term “real-life” intriguing. Way back, Sebas and I used the terms “work-work” and “kde-work” to distinguish between “the time spent developing software for which (time) we are paid” and “the time spent developing software which is fun”. That seems a little less pejorative (and sometimes the two overlapped). But there’s another angle, not one pitting “KDE time” against “useful time” like David suggests. It may be that people writing about “real life” use that as a contrast to “that portion of life spent in virtual environments”, i.e. that it’s about computer-vs-non-computer related ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 09.01.2013 | Прочитано: 454 | Комментарии

Down

System & Utilities

This tutorial shows how to install Ubuntu 12.10 on the btrfs filesystem on a Hetzner server with two hard drives.


  
Подробнее | Разместил: KDE News | Дата: 07.01.2013 | Прочитано: 450 | Комментарии

Red Hat Bachelor & Diploma Theses about KDE projects

System & Utilities

Every year Red Hat Czech offers a list of topics for bachelor and diploma theses to students from local universities. The topics are usually suggested and posted by Red Hat employees who then work with the students as technical consultants and mentors.

We see this as a good opportunity for students to learn about open source software, communities and collaboration and for us to find potential future employees Smilie: :-) (so there’s a great motivation too). We want students not to see their diploma or bachelor thesis as some boring obligation, but rather a “fun” way to learn new things, meet people and gain experience. And last but not least they are potential contributors to the projects they are involved in.

This year I managed to get several students I’m mentoring to pick a topic related to KDE.  Although all projects are somehow related to KDE Telepathy, it’s a good start Smilie: ;-)

Today I want to introduce work of first two students, Stanislav Láznička and Artur Dębski.

Makneto++

Stanislav ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 03.01.2013 | Прочитано: 612 | Комментарии

KDAB contributions to Qt 5.0 (part 4)

System & Utilities

Continuing the series on KDAB contributions to Qt 5.0 (part 1, part 2, part 3), this time we cover C++11, and various optimizations

C++11 support

There have been many people and companies working on C++11 support in Qt 5. KDAB was involved in several Qt 5 features which relate to C++11. An overview of the features in Qt 5 which relate to C++11 is available from a presentation last Autumn.

One of the porting issues in a Qt 4 to 5 transition is that the QSKIP macro now takes only one argument where previously it took two. This is a source incompatibility for users to deal with. As macros can not be overloaded the way that functions can, a different solution is needed. That’s where  variadic macros become useful. If C++11 is enabled when compiling a file which uses QSKIP, the definition of that macro looks like this:

#define QSKIP(statement, ...) QSKIP_INTERNAL(statement)

The QSKIP_INTERNAL macro is the implementation of the regular ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 03.01.2013 | Прочитано: 651 | Комментарии

Components Growing

System & Utilities

Looking past the irony that QML will be available for all platforms but WP8 in the short-term, and Nokias previous involvement in the development of QML, it is nice to see the platforms being created.

The last in the row is Ubuntu Phone, others are Jolla’s Sailfish, RIM’s BB10 Cascades, KDE’s Plasma and Nokia’s Components for Harmattan and Symbian. Qt seem to unlock the future UIs for devices.

What is striking is the interaction patterns being established. Nokia Swipe, Sailfish as well as Ubuntu Phone seems to rely heavily on swiping from the sides of the screen. This is, in my experience, the key to a truly one-handed device.

Using Android, you are constantly forced to hold the device in awkward angles or use two hands to reach the home button, be it physical or on-screen. Swiping with the thumb is always possible when using one hand (as long as you have an opposable thumbs), while the two-handed user can swipe using the index finger without feeling hindered by the ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 03.01.2013 | Прочитано: 675 | Комментарии

Down

System & Utilities

A variety of methods exist for auditing user activity in UNIX and Linux environments.


  
Подробнее | Разместил: KDE News | Дата: 03.01.2013 | Прочитано: 505 | Комментарии

2012 Recap for me in KDE.

System & Utilities

2012 is not the best year for me in the KDE team, I almost didin’t coded, heal life issues keep me busy in a way that I couldn’t avoid. I did a few things however:

  • The program that I started as an University Project back in 2008, Rocs, is now being used in universities around the world for teaching Graph Theory and Data Structures. ( Much thanks to Andreas (CoLa) and Wagner Reck ( wiglot ) for helping me on improve my initial mess into a true opensource project. If you are a teacher or computer scientist student and never heard of Rocs for Data Structures / Graph Manipulation, do a favor for yoursellf and go take a look.
  • I’v spend this year much money on KDE related stuff: Bougth one kick ass Konqui Costume ( that costed around 2,200 EUR, + shipping )  and 2k buttons with konqui paintings to be used everywhere in events. It was used sucessfully in FISL and LatinoWare, the two biggest events in latin americas ( one with around 8k participants and the ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 03.01.2013 | Прочитано: 574 | Комментарии

My first Mozilla contributions

System & Utilities

As of beginning of December I started contributing to the Mozilla community… I must say amazing people and amazing environment.

I was invited by Josh Matthews and David W. Boswell to a Mozillians meeting. The first task I took upon myself was getting new contributors mentioned with every release. With the help of the others I went around pinging people and a couple of days later we reached the consensus that we will be linking to a blog post on http://blog.mozilla.org/community/category/spotlight/ from the release note with every release.

We will be using a set of premature scripts I am working on to detect new contributors to a release as well as the contribution rate (code and bugs which is inspired by my GNOME fellow Andre Klapper). Those can be found https://github.com/seiflotfy/mozcctools (nothing special they just spit out JSON stats, will automate them this weekend).

And last but not least. After an interesting call with the super dad himself, Mike Hoye, I took a challenge upon myself to hack a tool that does the following:

Enter a a keyword, ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 02.01.2013 | Прочитано: 647 | Комментарии

Zeitgeist 1.0 almost there (call for hackers)

System & Utilities

So after 4 years of development Zeitgeist is reaching 1.0. The Zeitgeist team has reached a big goal/milestone :D

What’s new?

  1. New libzeitgeist2: instead of libzeitgeist which was developed and hosted on Launchpad now reuse and expose our own internal Vala components. When comparing libzeitgeist2 to libzeitgeist we can see over 65% less code (thanks to Vala) with 90% compatibilty with libzeitgeist. (libqzeitgeist not affected)
  2. GObject Introspection support
  3. Faster performance
    • Testing with 100k events DB here are some plots, those are peromances of synapse and standard time based queries where the yellow bars are 0.9.5 release and green bars represent “master”. Shorter bars are better.
    • synapse_unlimited timerange_always timerange_interval
  4. Smaller DB size: With a very small modification to the main table (primary keys), SQlite created some automatic indices that cover what we need so now instead of 34 indices we only need 25.
  5. Lots of bug fixes
  6. ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 02.01.2013 | Прочитано: 554 | Комментарии

Search your playlist – Plasma-Mediacenter

System & Utilities

Till last week or 2 I was surfing through calligra code base. Shantanu asked me share my love for Plasma-mediacenter and hence it bubbled up with this post. I wanted this post as a Christmas gift to PMC(Plasma-mediacenter) users. But then due to my laziness and some foo factors it delayed.

PMC has support for playlist. Lets see how I added the search option for playlist. I wrote a model to filter the search in the playlist, named FilterPlaylistModel. FilterPlaylistModel inherits the QSortFilterProxyModel. And the key method of FilterPlaylistModel is filterAcceptRow. filterAcceptRow method will help us to filter out the rows which didn’t matched with string in the search box. Playlist.qml uses playlistModel which is already in use. I wanted to add my FilterPlaylistModel to Playlist.qml. This was accomplished by adding a Q_PROPERTY in FilterPlaylistModel. Created a sourcePlaylistModel of type QObject. Added the read, write and notify options. I registered the FilterPlaylistModel in mainwindow.cpp. Now here is the tricky part, which took me some time to understand. Updated the model of Playlist.qml to:

model: MediaCenterComponents.FilterPlaylistModel ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 27.12.2012 | Прочитано: 662 | Комментарии

Plasma Active for Nexus 7: Running the touch-optimized Plasma Active Linux Distribution on Nexus 7

System & Utilities

Reblogged from ruedigergad:

Click to visit the original post
  • Click to visit the original post

We are very happy to announce the first testing release of Plasma Active for Nexus 7. Plasma Active, in a nutshell, is a Linux distribution (based on Mer as a core) that is specifically optimized for tablet computers.

Tuomas Kulve and me had been working on the Mer “hardware-adaptation” for Nexus 7 that enables to run Mer-based distributions like Plasma Active on the Nexus 7.

Read more… 860 more words

A must read for nexus 7 owners who want to get plasma active on their device

  
Подробнее | Разместил: Planet KDE | Дата: 27.12.2012 | Прочитано: 634 | Комментарии

Impressed by Calligra compatibility with Microsoft Office

System & Utilities

Blog Tags: 

I'm using Microsoft Office quite a lot at work, and I must confess it is a very efficient. Not only because I'm used to it, but also because it allows creating nice looking content extremely fast, and is feature wise more complete than its competitors. That being said, Office remains a closed product, without proper support for Open Document Formats.

As soon as I'm leaving the office I switch to Archlinux, and use LibreOffice or Calligra : even if less complete or efficient than Office, they are Open Source and support Open Document Formats. They are totally suitable for my personal usage, where I do not need to create striking Presentations or complex Pivot Tables and graphics.

Being a bit bored between the Christmas and New Year's Eve frenzies, I loaded a (not too) complex presentation I made in Powerpoint into LibreOffice ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 27.12.2012 | Прочитано: 683 | Комментарии

My personal KDEPIM upgrade (again): laptop

System & Utilities

One year after my last blog post on this topic I encountered some minor difficulties with combining KDEPIM-4.4 (i.e. kmail1) and the KDE 4.10 betas. These difficulties are fixed now, and the combination seems to work fine again. Anyway, I became curious about the level of stability of Akonadi-based kmail2 once more. After all, I've been running it continuously over the year on my office desktop with a constant-on fast internet connection, and that works quite well. So, I gave it a fresh try on my laptop too. I deleted my Akonadi configuration and cache, switched to Akonadi mysql backend, updated kmail and the rest of KDEPIM without migrating to 4.9.4, and re-added my IMAP account from scratch (with "Enable offline mode"). The overall use case description is "laptop with large amount of cached files from IMAP account, fluctuating internet connectivity". Now, here are my impressions...

  • Reaction time is occasionally sluggish, but overall OK.
  • The progress indicator behaves a bit odd, it checks the mail folders in seemingly random order and only knows 0% and 100% completion. ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 27.12.2012 | Прочитано: 505 | Комментарии

Testing KScreen packages available for openSUSE

System & Utilities

Yesterday Alex Fiestas showed on his blog a video of a recent development version of the KScreen library, created to handle easily multiple monitor setups in KDE, almost in an “automagic” way. As this is a project where configurations and setups are highly heterogeneous, a lot of testing is required to ensure things work reliably.

Of course, you cannot ask a developer to have all sorts of screen combinations, but remember one of the strengths of FOSS: “many eyes make bugs shallow”. And that’s why the KDE team prepared testing packages for KScreen for openSUSE users.

Before you jump to the repository, bear in mind that these packages are for testing and bug reporting purposes. They can potentially cause unwanted effects, connect your displays to some random alien homeland, make your house blow up, and so on.

If you are still daring, you can find them in the KDE:Unstable:Playground repository. Install both the libkscreen and kscreen packages, and you’ll see a new entry in System Settings when you go to the monitor configuration ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 27.12.2012 | Прочитано: 568 | Комментарии

The Nexus 7: My views

System & Utilities

Before I start , I must make it clear that it is not an in depth review of Nexus 7, you would find a lot of those on the internet. I am just narrating my own experience from an Indian’s point of view , which a lot of people should find useful.

First of all, I am a final year undergraduate and was thinking of buying a tablet for the last 6-8 months or so. Earlier I wanted to buy the Micromax Funbook but then I thought that if I am buying a tablet, I should go for a good one, at least a decent one. I am not saying that the Micromax Funbook series is bad, they offer a great value for money but unless you are in dire need of a tablet and have a 7-8 K budget limit, I wouldn’t advise you to buy it.

I started checking out the Nexus 7 reviews and found them pretty great. Sure it had some cons, but all of those were fine with me. It didn’t have a back camera ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 26.12.2012 | Прочитано: 606 | Комментарии

Down

System & Utilities

Krita Sketch, a version of Krita for touch interfaces, has been released. Krita is a cross-platform sketching and painting application for the K Desktop Environment read more... This tutorial shows how to set up an Ubuntu Jeos based server as a spamfilter in gateway mode.


  
Подробнее | Разместил: KDE News | Дата: 24.12.2012 | Прочитано: 532 | Комментарии

KDAB contributions to Qt 5.0 (part 1)

System & Utilities

Yesterday Qt 5.0.0 was released. It is the culmination of huge amounts of work since the announcement of and start of Qt 5′s development. This is the first major release of Qt since the launch of open governance in Autumn 2011, when it became much easier for external individuals and companies to contribute to Qt in terms of code submissions, code reviews, design, and maintenance.

As KDAB benefits from a successful Qt, we have made investments to contribute to the long-term health of the frameworks. There are over 1100 commits from KDAB in the qtbase git repository alone, and many others in other Qt repositories. Excluding individual contributors, we have consistently been the next biggest contributor, second only to the owners of Qt (Nokia/Digia). We have been fixing bugs, implementing wishes from the JIRA tracker, designing writing and testing new features, implementing platform support, reviewing other contributors’ code and participating in discussions around the project.

A new blog series here will detail some ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 20.12.2012 | Прочитано: 715 | Комментарии

The road towards KWin on Qt 5

System & Utilities

The last three weeks I have been on vacations which explains the lack of blog posts. My batteries are fully recharged to work on KWin full time starting from January thanks to Blue Systems.

By pure chance I stayed close to the San Francisco Bay Area which allowed me to go to the Qt Developer Days in Santa Clara. It was great to see all the KDE and Qt people again and it was totally worth going there. I’m now looking forward to some great Qt technology coming up with Qt 5 (congrats to the release!) and I’m very very glad that ICS and KDAB organized the Dev Days and showed everyone that Qt has a bright future.

For me the conference was very valuable as I had the chance to discuss a few things about the next versions of our KDE workspaces with Aaron and David. And even if we do not yet have plans for a KDE workspaces release based on Qt 5 and KF 5 it became clear to me that my work for the 4.11 cycle ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 20.12.2012 | Прочитано: 475 | Комментарии

Krita Sketch is: Colourful

System & Utilities


A quick recap of the main topic: My employer, KO GmbH, has been working on a touch version of Krita, called Krita Sketch, over the last few months, and has finally made the first release! So, i'm doing a bit of writing, talking about some of the work i've been doing as a part of this project. (you should also read the dot article, because it's good and has shiny ;) )


In the previous instalment i wrote about rounded corners, and mentioned there was something else in Krita Sketch which was round. Those who use Krita will have already encountered the colour wheel that's used to select colours in the application, and this is a very popular feature with the target audience, so of course we need it in Krita Sketch as well. This entry discusses the implementation of that element

An important point to ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 20.12.2012 | Прочитано: 533 | Комментарии

About Antiquated Metaphors in Icons

System & Utilities

Antiquated metaphors in icons can work better than modern, but complicated ones. This can be shown on the example of the ‘save’ icon.

A lot of the Tango and Oxygen icons that are used in the standard tool bar in LibreOffice Writer are based on the same metaphor. From the icons that differ in metaphor, the icons used for ‘Saving a document’ are especially interesting. This is one result of the large scale icon test of LibreOffice Writer icons (read about the methodology of testing icons).

In our work with different projects we have often been asked why antiquated metaphors are still used in icon design. Examples of these antiquated icons could be the shiny metal container representing a database or the floppy disc for saving data. Younger people might not even have seen either of the originals.

Use a floppy disc to represent ‘save’

As the Oxygen icon used for saving is a floppy disc, ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 20.12.2012 | Прочитано: 615 | Комментарии

Homerun 0.1.1

System & Utilities

So while everybody is busy celebrating the release of Qt 5 (Congratulations!) Let me announce a much more modest release: Homerun 0.1.1.

This new version comes with one new feature: the ability to change the launcher icon, and a few fixes:

  • Fix "halt" action performing "log out" instead
  • Fix memory leak when browsing folders
  • Fix rootUrl appearing in PathModel if it did not end with a slash
  • Fix crash when trying to add a tab to an empty model
  • Fix crash if user tries to configure tabs while not on start page
  • Fix category and website fields in desktop files

You can download the source from download.kde.org. Packages should get updated soon.


  
Подробнее | Разместил: Planet KDE | Дата: 19.12.2012 | Прочитано: 459 | Комментарии

Another Foundation Pops Up - The Krita Foundation

System & Utilities

Today the Krita project announced the formation of their new foundation Stichting Krita Foundation.


  
Подробнее | Разместил: KDE News | Дата: 18.12.2012 | Прочитано: 531 | Комментарии
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