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System & Utilities

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Sacha Schutz (DrIDK): Webcam for kde : a new way for gluon games ?

System & Utilities
Hi all!

Yesterday I had an idea, to use a webcam input as a controller for games! Like the last nintendo games. So, I was looking on openCV to get the video source and use some video detection function. My plan is to load Webcam picture to KGLTexture, and use them in KGLEngine



Otherwise, I don't understand why KDE has no official webcam librairy/software. Phonon cannot use it currently... Gnome has Cheese, and it's exellent.
So, I create a small KCamWidget worked on openCV. ( look the screenshot)

kcamwidget.cpp
kcamwidget.h

If some people want to work on the beginning of this project, there are welcome! The code source is here ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 23.05.2009 | Прочитано: 668 | Комментарии

Thomas Thym (ungethym): Forget tabs?

System & Utilities
I am hoping to get tabs for KWin in a view month and the Mozilla Project is discussing what innovative concept will come after tabs.

"Reinventing Tabs in the Browser - How can we create, navigate and manage multiple web sites within the same browser instance?" is the questing of the Design Challenge 2009.

What fascinates me:
  1. Another concept of bringing the Internet to the desktop (compared to KDE's approach of integrating the web into the desktop).
  2. How they are thinking into the future and drive real innovation.
  3. How they designed and started the campaign (nice website, many involved specialists (look at "cooperations with" and "partners" at the bottom of the page), ...).
Keep your eyes open. Always think a step ahead. Perhaps there are some good approaches for KDE, too.
E. g.
  1. To visualize search results from nepomuk not in a list but 2D in the dimensions relevance (top-down) and chronology ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 22.05.2009 | Прочитано: 578 | Комментарии

Ivan Cukic (ivan): Lancelot 1.7: I just get carried away…

System & Utilities

It is the time to announce the new version of Lancelot that will be shipping with KDE 4.3.

Lancelot 1.7 - I get carried away...

Most software has code-names for different releases. Lancelot doesn’t, but I’ve decided to dedicate a new tagline to this version - “I just get carried away…”. It is still from the same motion picture as the last one (”In my own idiom” - for Lancelot 1.0).

The news of a new version can never be as grand as the introduction to a new program (especially when a lot of hype preceded it like it was the case for L1.0), so I’ll not bother to make it more grandiose than it is.

Themes

The first thing you’ll notice is that the themes have changed. All themes but Aya which kept its Spartan look.

Lancelot 1.7 - Slim Glow ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 22.05.2009 | Прочитано: 667 | Комментарии

Let 1000 flowers bloom

System & Utilities

The ModdingDen has an interview with the lead developer of SimpleKDE , a cut-down, lightweight version of KDE.


  
Подробнее | Разместил: KDE News | Дата: 22.05.2009 | Прочитано: 671 | Комментарии

Chani Armitage (Chani): using git-svn inside an svn repo

System & Utilities

last week I set up my git-svn repos for gsoc, and at first all seemed well. but a few days later, svn decided it wasn’t going to update until it had reclaimed the folders I had converted to git. :P silly svn.

see, I have kdelibs and kdebase checked out from svn, but kdelibs/plasma and kdebase/workspace/plasma are git repositories now. svn didn’t like this. I talked to a guy in #svn who insisted this couldn’t be done and I should give the folder back to svn. I wasn’t going to give up so easily, so I talked things over in #kde-devel… there was this –set-depth and –depth thing in svn update, but the documentation was brief and confusing, so that day I settled on having a separate plasma-git folder and editing cmakelists to compile that instead of plasma.

I wasn’t quite happy with this duplication, though, and something in the back of my mind kept coming back to this depth thing… yesterday I had an idea for how I might be able to use it, ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 22.05.2009 | Прочитано: 575 | Комментарии

Andrea Diamantini (adjam): rekonq 0.1

System & Utilities

Here we are again, speaking about rekonq 0.1 release. This is intended to be just as 1st “inside KDE” public release. In fact, from now on, rekonq is a fully supported KDE project: we have one mailing list, one IRC channel and especially an account on kde bugzilla for our bugs and your feature requests. What can I say more? I’m really proud of it! And we have also a lot of people that like this “child browser” and are supporting us. I really wanna thank you all :)

What else? Two things. First, rekonq 0.1 is obviously NOT ready for production nor feature complete. Take it just as a technology preview. Quite stable, I hope, but just that. If you are really interested on, read full changelog and information on rekonq site.

Second, development season restarts, stay tuned!

Posted in international, rekonq ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 22.05.2009 | Прочитано: 661 | Комментарии

Jonathan Riddell (riddell): Canonical AllHands

System & Utilities

The Canonical AllHands meeting is happening a wee bit outside of Barcelona. It is a requirement of all buildings in Barcelona that they have weird and interesting architecture.


This hotel has more floors underground than it has above ground. The translucent showers are a curious feature but my roommate is Aurelien who turns out to be as cool a bloke as you could expect being a KDE developer.


Why Canonical, with these Ferrero Rocher you are really spoiling us no?


I got to meet Zhengpeng who helped make Kubuntu support CKJ back in the day and now works for the OEM team.


Aur


  
Подробнее | Разместил: Planet KDE | Дата: 22.05.2009 | Прочитано: 771 | Комментарии

Nuno Pinheiro (pinheiro): A clock in mid Air!!

System & Utilities So the last few days I haven't been able to do any real icon work because i have been busy with real life work , and prepping the artwork for the 4.3 release. That mens playing with plasma stuff and helping Marco Martin do his magic... So we reworked the plasma air theme so its more air theme and less oxygen... they go anlong very nicly together but they should not use the same elements :).

Marco is working on the really not so fun part of the task bar and panel, were me I got the clock part :) aka "the easy one" :).

Here you have a mock svg (final thing should be almost exactly the same ). a close up of the clock "in mid air" :) ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 698 | Комментарии

Aurelien Gateau: Pissed off. Deeply. Pissed off

System & Utilities

(Sorry this is a rant)

I am in an amazing hotel 40 km near Barcelona right now. I arrived on tuesday evening to attend “All Hands”, a Canonical event just before UDS Karmic. The weather is really nice, the tracks are challenging and stimulating, and I get to meet coworkers coming from 26 different countries.

So why I am pissed off? Because apparently, stupid Air France/Roissy Charles de Gaulle employees were not clever enough to put my luggage in my plane. They announced it would be in Barcelona at 12:30 on Wednesday, then delivered to the hotel in the afternoon, but this turned out to be too complicated for them and my luggage did not arrive. It was then scheduled to arrive in the evening, then maybe by night. At 2am I got to bed, tired of waiting for it. This morning it was still not there. Apparently it arrived in Barcelona at midnight, and they still need to bring it to the hotel. Right now it’s 11:30, it’s still not there and I feel more frustrated than ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 810 | Комментарии

Sebastian Trueg (trueg): Your (Our) Nepomuk Ideas

System & Utilities

In a way Nepomuk in KDE is still a rather young and experimental project. We are still using a java storage backend since the Virtuoso one is not stable yet, we cannot track all file operations which can lead to orphaned meta data, applications so not use the theoretical full power of the framework, etc.

But I think this is OK. Nepomuk creates a new way of dealing with desktop data, even a new way of development (including ontologies). It is bound to take time, also because development it is not as fancy as for example Plasma and also a lot more complex. Thus, we should see the achievements so far positive. Apart from the existing frameworks and application integration there seems to be a trend towards semantic desktop ideas in general which is also an achievement of the Nepomuk project. There surely is a lot of potential.

On a more practical note there is one thing that has been missing for a long time: a starting point for developers wanting to help with Nepomuk. Sure, we have ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 659 | Комментарии

Peter Zhou (peterzl): Hey roommate, heads up!

System & Utilities

/me is looking for roommate during Akademy from 3rd to 12th July.

Or if someone is willing to sleep on the street with me, feel free to call me brother!


  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 657 | Комментарии

Ariya Hidayat: Chrome Experiments, Flash-killer, Monster Evolution

System & Utilities

These days I am juggling balls. Beside fixing QtWebKit-related bugs, writing more examples on using QtWebKit, I am helping the Kinetic guys with Graphics View optimizations, and working on new Graphics View feature I still can't elaborate (sorry for the teaser :-). On top of that, I already started to work on Qt Script, learning the intricacies of JavaScript along the way, stress-testing Kent's Qt Script binding generators, and surely also playing around with the brand-new Qt Script debugger in Qt 4.5. For the latter, even if you are not really into Qt Script, I highly recommend giving it a try, at least watch the screencast from Kent for a start.

Unless you stayed under the rock for the last few weeks, you already heard about Chrome Experiments. These are some extremely cool demos designed to run in a web browser. Of course, there are already tons of demos out there. Chrome Experiments are however different. It relies on a high-performance browser. ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 944 | Комментарии

Vladimir Prus: KDevelop error display

System & Utilities For quite a while I wanted KDevelop to display compilation errors directly inside the editor, as opposed to separate window you have to click in. It works now, as shown below. This was implemented by Ivan Ruchkin, a student at Moscow State University, who will be defending a term paper about various KDevelop-related work tomorrow. The patches will be posted to appropriate mailing lists right after that.

  
Подробнее | Разместил: Planet KDE | Дата: 21.05.2009 | Прочитано: 719 | Комментарии

Michael Jansen: KDE Common Problems: Ctrl+W shortcut doesn't work in app XYZ

System & Utilities

See Bug 190412 for an explanation. The problem is a little broader than the bug reports. See Bug 193085 for a more detailed explanation of the problem.

The problem was me fixing khotkeys without completely adapting it to the new global shortcuts framework in place for kde 4.x . I just didn't realize the consequences. Khotkeys in 3.x ungrabbed the shortcut if the condition was not met or the khotkeys was inactive. In other word whenever the focus was not on an konqueror window ctrl-w was freed. With 4.2 that important bit of functionality was lost. ctrl-w was grabbed all the time. My fault.

If you are on kde 4.2 and want to have your keys back then go to the input actions kcm (kcmshell4 keys) and remove all shortcuts associated with inactive hotkeys. Or go to the global shortcuts kcm (kcmshell4 keys) and disable all khotkeys shortcuts you don't like.

With 4.3 inactive global shortcuts are not grabbed anymore. I made the change last ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 20.05.2009 | Прочитано: 483 | Комментарии

Qt Software Opens Its Source Code Repositories

System & Utilities

Qt Software has completed its plans to release the Qt source code repositories to the developer community.


  
Подробнее | Разместил: KDE News | Дата: 20.05.2009 | Прочитано: 665 | Комментарии

Michael Jansen: KDE Common Problems: My 'e' ky dos not work

System & Utilities

That is some kind of unexpected comeback from a classic out of the pre kde 4.0 development time. I once managed to break the 'e' key for all when working on khotkeys. Me fixing khotkeys exposed a qt bug. Qt did parse the "Win+e" string from kde 3.x as 'e' because it didn't recognize the Win modifier. It is called Meta in qt. We fixed the symptom because we couldn't fix the cause and everything went smoothly for some time.

Then reports about that problem having a comeback started to creep in but i couldn't get my hand on someone experiencing it. Not everybody looks my way when having keyboard problems. The last days comawhite - a irc regular - had the problem and we could pinpoint the cause.

The problem this time appeared because of a different reason. comawhite is a gentoo user and his x11 setup didn't provide a modifier usable as the meta key. You can check that with xmodmap -pm. I get:

  1. xmodmap: up to 4 keys per modifier, (keycodes in parentheses):
  2. ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 20.05.2009 | Прочитано: 791 | Комментарии

Albert Astals Cid (TSDgeos): Buenos Presagios (Good Omens)

System & Utilities So yesterday i finished reading Buenos Presagios the translation of Good Omens by Terry Pratchett and Neil Gaiman, a book written in 1990 and that has the Spanish first edition on ... April 2009 ... it's intriguing how some editorials decide to translate not so great books asap and better ones are left on the dust for almost 20 years.

And now onto the book, it's my first Gaiman book, but my n-th Pratchett one and i have to say it lives to the expectation.

It's a novel about the end of the world because of the Armageddon, the coming of the Antichrist, with the Four Horsemen of the Apocalypse, a witch that did 300 years of exact predictions and an earth-living Angel and Demon that prefer to work together instead of for their far away bosses. All that mixed with the great humour that Pratchett gives to all his books, will have to read some Gaiman to see if it's good too (Just saw he's the writter of Stardust, i haven't ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 20.05.2009 | Прочитано: 651 | Комментарии

Lydia Pintscher (Nightrose): UserBase Competition - Round 3

System & Utilities

Two weeks have passed since I announced round 2 and I am very happy with the result. The Amarok page improved a lot and is ready for the release of Amarok 2.1. Many thanks go to Karthikp, the winner of round 2! Awesome work! You definitely get a beer when we meet.

So who is next? Plasma! A few days ago the Plasma page on UserBase was a sorry little copy of the Plasma FAQ. Einar moved the FAQ already and was kind enough to start the new Plasma page. Now it needs more people to fill the missing spots. This is where you come in! Go to UserBase, get an account (non-OpenID login now possible as well thanks to danimo o/) and start on either the main Plasma page or updating the FAQ where needed. This is a good way to get started with contributing to KDE and at the same time helping fellow users. As in previous rounds a beer (or similar drink of your choosing) ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 513 | Комментарии

Sacha Schutz (DrIDK): When Convolution matrix meets KGLShader

System & Utilities Today I have implemented Matrix Convolution as a shader for KGL. Matrix convolution is an easy way to create simple effects with a simple matrix computation.
For example, you can use it in Gimp.
But the difference between Gimp and KGL, is so important. Gimp use the CPU and KGL use the GPU thanks shaders! So, now you can easily make realtilme animation with convolution effects what can not do CPU.
Thanks olivier gueudelot for the idea!

So , look this :
Normal Texture {0,0,0, 0,1,0, 0,0,0}


Contrast effect {0,-1,0, -1,5,-1, 0,-1,0}


Border detection {0,1,0, 1,4,1, 0,1,0}


Random Value ( I don't remeber the matrix :))
...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 546 | Комментарии

Nikolaj Hald Nielsen: From the Post 2.1.0 Git Vaults, Part 3: Something really far out

System & Utilities Seeing how Leo refuses to give up in our little "battle of the blogs", blogging cool new feature after cool new feature, its time for me to fire the next salvo :-)

Disclaimer 1: What I am going to show you here is a personal prototype, made to facilitate discussions. It is currently not planned for inclusion in any version of Amarok. In fact there is no guarantee it ever will appear in a released version as it is quite a controversial topic among the Developers.

Disclaimer 2: The observant among you will notice many small bugs and glitches in the video, such as album covers in the playlist doing weird things, double borders around some elements and likely many others. This is par for the course when creating a quick prototype like this... :-)

That being said, I would really like to hear the opinions of the wider community on this ...read more...

  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 669 | Комментарии

Brad Hards (bradh): Request for testing - XPS documents with Right-to-Left text

System & Utilities

Its been a while since I did anything productive in KDE land, so thought I'd try to do something in a morning. Its hard freeze time, so that should be bug fixing. Bug 185532 was something I'd been thinking over for a while.

That bug basically deals with XPS documents that didn't render correctly with RTL text. It looked like a fairly standard Right-to-Left text problem, and I assumed there was just something I hadn't handled because none of the documents I look at are Right-to-Left. I am, after all, ignorant of both Hebrew and Arabic.

The fix turned out a bit more complicated, and I think also fixes up some other XPS rendering issues. If you have a collection of XPS documents, especially anything with Arabic or Hebrew text, and are OK with building KDE and applying patches, I'd appreciate any feedback. You can find the patch on KDE's ReviewBoard

Guidance:
1. If your document works differently to an unpatched Okular, please add a comment at Bug 185532
2. If your document ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 760 | Комментарии

Ariya Hidayat: the daylight seems to want you just as much as I want you

System & Utilities

Like I wrote before, last week I was in Florence for the third installment of Pycon Italia.

I must admit, it was absolutely a fantastic event, so kudos to the the organizer! Everything went without glitches, the auditorium was spacious, coffee breaks and lunch were without compromise. And thanks to our lovely translators, we have on-the-fly, quasi real-time translations both English-to-Italian and Italian-to-English. I guess this is something any others non-English conferences need to copy, it was definitely awesome to be able to follow few talks presented in Italian. Of course, I need to say that it gives a different feeling (for a Python conference) when some VIPs like Guido von Rossum and Alex Martelli were there.

Both my Advanced Graphics Programming with PyQt and David's PyQt for Desktop and Embedded Devices were well received. Things could still have ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 739 | Комментарии

Jaroslaw Staniek (js): The best compliment for you, KDE devs, ever

System & Utilities

The best compliment for you, KDE devs, ever:

"Daddy you have a new computer!"

-- my ~4 years old son Micha


  
Подробнее | Разместил: Planet KDE | Дата: 19.05.2009 | Прочитано: 446 | Комментарии

Thomas Capricelli (orzel): feedback about converting eigen2 to mercurial

System & Utilities

This week-end we did the final conversion of the eigen2 source code repository. I shall describe here the few problems we had, as a feedback to the community.

Eigen original purpose was to help provide linear algebra for several KDE parts. As such, it was until now developed inside the KDE repository, which (still) uses subversion. Let it be clear that KDE did a wonderful job at hosting eigen repository, even though several accounts needed to be created for people who only contribute to eigen and not KDE as a whole. Eigen is getting big enough to live and release its own way , but eigen keeps very strong relationships with KDE.
Here is the script that was used for the conversion. The version of mercurial (and of the mercurial convert extension) was 1.2.1.

hg convert https://orzel@svn.kde.org/home/kde
    --authors eigen.authors
    --config convert.svn.tags=tags/eigen
    --config convert.svn.branches=branches/eigen
    --config convert.svn.trunk=trunk/kdesupport/eigen2
    eigen.hg

We faced several problems. Fortunately all but one could be resolved patching python code. That would have been a ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 18.05.2009 | Прочитано: 656 | Комментарии

Comment by Jason Bourne

System & Utilities

The KDE team has pushed out the first beta release of KDE 4.3 . The highlights of this release are the integration of many new technologies, such as PolicyKit and Geolocation services, new window animation effects, a more usable run command popup, many new and improved addons in Plasma, Many bugfixes and improvements across all applications, and ...


  
Подробнее | Разместил: KDE News | Дата: 18.05.2009 | Прочитано: 846 | Комментарии

Aurelien Gateau: Gwenview 2.3 Sidebar

System & Utilities

One of the most requested features for Gwenview 2 is bringing back the folder view. As I stated earlier, I worked on this feature for Gwenview 2.3.

It’s done now, I hesitated quite a bit on the way to integrate this view in the application, but I think it’s now ready to be presented.

I decided to split the sidebar in three tabs: “Folders”, “Information”, “Operations”. Doing it this way gives more space for information and operations. This means less scrolling to reach operations on a small screen, more space to show image information and the ability to enter Nepomuk description in a multi-line widget, rather than the single-line version from Gwenview 2.2.

Sidebar settings (which tab is current, whether the sidebar visible) depend on the mode: By default the sidebar is always visible. In browse mode the default tab is “Folder”, while in view mode it is “Information”. This is nice because the casual user gets access to decent navigation in browse mode and more information when viewing his images, while the power user ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 18.05.2009 | Прочитано: 671 | Комментарии

Sune Vuorela (pusling): Debian/KDE status

System & Utilities

So. Finally, we got KDE 4 series in Debian/Testing, more accurate, KDE4.2.2.
Thanks to the rest of the Debian/KDE team for working on this, including sitting on their hands when wanting to fix bugs, and a special thanks to the Debian Release team for making this happen.

(PS.: and we beat gnome 2.26 in making it first to testing)


  
Подробнее | Разместил: Planet KDE | Дата: 18.05.2009 | Прочитано: 644 | Комментарии

Alessandro Sivieri (Siv): GSoC, week -1: approaching code

System & Utilities
System UML 2

System UML 2

I promise: this will be the last image!

The next post will discuss a bit about real code (which is coming, I just have to check the very first compilation cycle before throwing a new folder into playground); for now, here is an update of the previous UML diagram: it’s a little bit more into the “real virtual world” of KDE libraries, even if something could be changed any time.

I’m studying the model-view framework from Qt, and a few classes are now related to the abstractions offered by that system; as soon as the structure will be clear, I will write about it.

Next week, waiting for the GSoC official start (on saturday the 23rd), the first classes will come up and I will talk about something a little less into the air and a little more into the bits.


  
Подробнее | Разместил: Planet KDE | Дата: 17.05.2009 | Прочитано: 536 | Комментарии

Alex Merry: What’s Playing, Doc?

System & Utilities

So, I was round at a friend’s, and he was playing with Amarok and the Plasma widgets screensaver, and wanted a way to see what was currently playing when his computer was locked.  Of course, I pointed him towards the Now Playing applet, but it was overkill for what he wanted – he didn’t want the buttons, or the sliders – just a display of the current information.  Well, I was in the mood for playing, and it took me about 15 minutes to construct a javascript plasmoid, most of which was spent researching how to use data engines from them.

The code I left him with was:

layout = new LinearLayout(plasmoid);
layout.setOrientation(QtVertical);

label = new Label();
layout.addItem(label);
label.text = 'No player'

plasmoid.dataUpdate = function(name, data) {
label.text = 'Info:n';
for (var key in data) {
label.text += key + ': ' + data[key] + 'n';
}
}

plasmoid.dataEngine(\"nowplaying\").connectSource(\"org.mpris.amarok\", plasmoid, 500);

This was in a file called “main.js” in a subfolder called “contents”. In the plasmoid folder (the folder containing the contents folder), ...read more...


  
Подробнее | Разместил: Planet KDE | Дата: 17.05.2009 | Прочитано: 761 | Комментарии

RE[3]: Comment by cmost

System & Utilities

When KDE 4.0 was first released, it was met with quite some criticism. Even though people saw the huge potential, the lack of functionality and stability, as well as quite a few bugs detracted from the experience.


  
Подробнее | Разместил: KDE News | Дата: 17.05.2009 | Прочитано: 648 | Комментарии
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