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The Kubuntu Team is proud to announce the release of Kubuntu 9.04, the Jaunty Jackalope!
With this release, the development team brings you the best KDE distro out there. With its world-renowned Ubuntu core and the KDE 4.2 desktop, Kubuntu 9.04 gives users a well-rounded, feature-filled and elegant desktop. On the top, KDE 4.2 brings beauty, innovation and updated software with new & improved features. Underneath, updated kernel and core systems bring stability and speed.
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Following a quite heated discussion on #kde-devel about minimum versions of libraries required to build KDE trunk, I decided to describe how I install up-to-date libraries without messing with my distribution packages. Installing a library by hand can usually be done in three places: - Install in
/usr: this is a sure way to annoy the packaging system of your distribution… - Install in
/usr/local: this is the traditional way to install libraries by hand, but it is a bit difficult to uninstall things because files are scattered in the traditional lib, share, bin… folders. - Install in
/opt/library_name: this makes libraries easy to install and uninstall, but it needs a bit more work to make the library available to the rest of the system. I personally like to use option #3. Installing a library this way requires specifying the prefix at configuration time. For libraries using autotools, this is done with ./configure --prefix=/opt/library_name. For libraries using CMake, use cmake -DCMAKE_INSTALL_PREFIX=/opt/library_name. As I said, when you are done, you need to make the library available to the system. To ...read more...
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| Canonical has announced the final release of Ubuntu 9.04 ; also announced were the releases of Ubuntu 9.04 Server Edition and Ubuntu 9.04 Netbook Remix, but of course also Kubuntu 9.04 , and Xubuntu 9.04 . This new Ubuntu release delivers a host of new features, as well as lots of improvements.
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| As part of Qt 4.5, we added QGraphicsItem::opacity. Which is great! But it doesn’t work as well as it could. We’re receiving a few comments about how this implementation could work better. Trouble is, in Qt 4.5 we only have two ways of rendering: direct, and indirect (”cached”, e.g., ItemCoordinateCache). And in order to apply opacity, you really need full composition support… :-/ Here’s a rundown of the trouble with today’s opacity support: - The current behavior modifies the input opacity of the painter
- …so you can override this opacity on a per-item basis (intentionally or not!)
- …and each primitive (line, rect, pixmap) you draw with QPainter will be composed one at a time inside the item (which is bad!)
- The behavior is slightly different depending on whether you cache an item or not.
- …if you use caching, the offscreen pixmap is rendered with an opacity, whereas the item itself doesn’t have any opacity set on its painter.
- Each item applies opacity locally, and even though opacity propagates to ...read more...
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I’ve been accepted as a Google Summer of Code student too for KDE! Third time lucky. Of the two propossals I sent, the one about getting a brand new bookmarks system for konqueror is the one which got accepted. That’s great, because current Konqueror bookmarks was showing its age. Most of the main browsers today have a more advanced bookmarking system. Currently it’s easier for a user to search his bookmarks with krunner than doing so with Konqueror itself. This will be no more. The bookmarks will now be stored with Nepomuk and Akonadi and will be easily found using an awesome location bar similar to firefox’ one, using krunner, the bookmarks editor or the bookmarks menu itself. As Chani (who has also been accepted as a GSoC student this year) has suggested, I’ll do a GSoC weekly report of my project, so be tunned konqueror users! Now that we are in the community bonding period, I’ve started the project by fixing some konqueror bugs that I should have fixed long time ago, and will continue by testing ...read more...
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| After much hard work from Qt Software developers in Oslo, Berlin and Brisbane, Qt 4.5.1 is now available. Qt 4.5.1 is a patch level release providing a large number of bug fixes and minor improvements over the 4.5.0 release that went out in early March. You can get Qt 4.5.1 here and you can see what’s changed in the changes log. Many thanks are due to those users who provided feedback on the 4.5.0 release. Your feedback has been very valuable in helping us to improve Qt, and we hope that you will continue to send us your constructive criticism, wishlists, likes and dislikes for the 4.5.1 release and beyond.
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| Like I promissed you, the step-by-step of the GSoC project will be all described in this blog. So, for now… As I said in my proposal, the first task of this project, besides studying libs and stuff, would be the appliance of the focus group technique, right?! Ok. But, first, what is this focus group about? Well, it’s something like a meeting with 8 - 12 people with opinions (very important - they gotta have opinions) about certain matter. There is also moderator that is going to lead this 1-2 hour discussion, and he will make sure that all the points and questions to the matter were covered. Here is wikipedia to help you: http://en.wikipedia.org/wiki/Focus_group In this project, the moderator would be me and the matter would be the Widgets Explorer, of course. But how to get it done? Well, the traditional technique says it must be a traditional meeting, with people in the same room. But since this matter involves a international community - and so it would be hard to get together at the same room - how ...read more...
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| Ok, just a quick update on what we are doing / have done the last two days except drinking beer and eating quite a lot of food (though it never seems to be enough somehow….) - Apol was polishing CMake support, speeding up KDevelop startup time when you enabled the QtHelp plugin, making sure that Kross plugins get loaded properly and some other things
- Adymo started some refactoring of Sublime in an experimental branch (actually they had quite a long discussion right now about things in the UI which should be changed/fixed). Besides that he also fixed some little bugs in the includepath resolver for CMake
- Nsams is fixing PHP support and adding new features here and there. Esp. completion inside a foreach over a Iterator class works now!
- and as always ZWabel did fix quite a lot of bugs, most of them which only were discoverable in a few corner cases, very nice indeed.
- shaforo who sadly already left us again to attend university fixed the sorting in the Project view among other things
- With Apols help I managed ...read more...
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| This is the follow-up to what I wrote before: hue subdivision for mortals. Seems everyone echoes my sentiment: increasing the coverage area of green is not the right way to go. The easiest explanation is as follows. Since this is an additive color model, due to the higher sensitivity of green, its contribution to other primary colors should be reduced. Effectively, this means we should shrink the green region in the color wheel: 
For the "Mortal" version in the above picture, I modified the conversion from hue to RGB (assuming fully saturated color), because I discarded the idea of curve-fitting to map the angle to the hue value. Another change is that I gave up keeping the triangle of the primaries, i.e. while 0 is still red (as an arbitrary reference), 0.333 is not green anymore. The actual position of a color component is now determined by the inverse proportion of its part to the grayscale function. I arrive at 26% red, 17% green, and 57% blue. Unsuprisingly, it means blue ...read more...
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 I create today, a new DataEngine wich allow you to translate anything. Currently it use only the Google translator like translatoid. But it's easy now to develop new translator by create a new class inheriting from AbstractTranslator. So, Can you suggest me some idea of web translator ? Babylon? and ..? |
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| So Kopete got two slots for this year’s SoC. Tiago Salem Herrmann will be working on improving the MSN support and Pierre-Alexandre St-Jean will be working on turning the chatwindow into a library. Congratulations to Tiago and Pierre-Alexandre and thanks to all other students that submitted proposals to Kopete SoC! PS: For the ones that didn’t get accepted but still want to work on the projects, just send a mail to the Kopete mailing list and we will try to help mentoring the work.
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I wonder what's up with QtDemo? I have this in both Linux and Win32 on my laptop. Could it be the ATI X1800 graphics card, or is it something else...
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I read Mark Shuttleworth's blog entry about meta-cycles this evening and was taken back in my mind to an entry I wrote in September of 2007 about Toyota.
My issue with the "6 month cycle" has always been three-fold:
- the number 6 is a project specific detail and should not be pushed on every project because it won't fit every project (Mark notes he works on projects with 1, 3 and 6 month cycles; other cycle are also possible, of course); what we're really talking about it timed releases made with a relatively high level of consistency
- The discussion is often coupled with the idea of coordinating different projects to the same cycle, which is really a different sort of conversation altogether with "length of the resulting release cycle" being an implementation detail within it
- it's only one half of the equation, with the missing half being the non-high-level-of-consistency-time-interval releases; too often it was an either/or discussion where if you were doing one you couldn't have been doing the other
...read more...
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| The question in the title pertains if you use kdesvn-build. kdesvn-build creates a separate log directory for every single run it makes. If you’ve done a lot of kdesvn-build runs and you’ve never manually cleaned out your log directory you’ve probably got quite a few hundreds of log bundles. Someone finally noticed and filed a bug. Attached to that bug is a patch I’ve created to remove all log directories but the ones referenced in the latest kdesvn-build run for a given module. I consider this the correct behavior so at this point I’m not looking to make it optional or require a magic incantation to Do the Right Thing. So, if you use kdesvn-build I’d recommend trying out the patch (always use –pretend first!). If you want to skip straight to pruning directories you can use a command like kdesvn-build --no-svn --no-build --no-install kdelibs (replace kdelibs with a module in your rc file). Also, does anyone have a reason to retain more log directories than those in log/latest? (And has a reason that you can’t ...read more...
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| The use of HSV/HSL color space is obvious when we need to have several colors distributed in an optimal way, colors as unique as possible. For example, SpeedCrunch uses it to autogenerate the colors used for the syntax highlighting feature. The details behind its algorithm was already described by Helder in his Qt Quarterly article Adaptive Coloring for Syntax Highlighting. Basically we use the color wheel and subdivide the hue into equal parts. Primary additive color components are red, green, and blue. This distributes the colors in maximum angular distance with respect to the hue values. So far so good. However, it was known that human eyes are generally more sensitive to green than other colors. In computer graphics, this is often manifested in the grayscale function, i.e. the function that converts RGB to a grayscale value. Take a peek at Qt's qGray(), it gives the red, green, and blue the weighting factors of 11, 16, and 5, respectively. Shall we take this into account ...read more...
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| "WebKit is an application framework that provides a foundation upon which to build a web browser.
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| Just like all the other cool KDE projects Amarok did of course also get their share of excellent students for GSoC this year. - Teo Mrnjavac will make the playlist rock after having worked on tagging during last year’s Season of KDE.
- Sven Krohlas will give us some unit testing goodness to find all those nasty bugs before a user gets to see them.
- Alejandro Wainzinger will make sure our media device support will make people happy.
I am sure you’ll do awesome work! I hope I can soon add the names of those who are going to take part in Season of KDE (and another super cool thingy we arranged which I can’t yet talk about) to this list. Thanks to Google for running GSoC and making this possible.
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As you’ll probably have noticed, the accepted proposals for the Google Summer of Code of 2009 have been announced. KDE has a nice selection of projects this summer, and I’m very happy my proposal is one of them. So what does this ‘network transparency in plasma’ mean? Allow me to copy/paste some stuff from my proposal: The goal of this project is to make some parts of plasma network transparent with as end goal the ability to: - have applets be able to use services and data engines on remote computers
- move applets and activities over the network
- share applets and activities between multiple computers
This allows for some innovative new use cases in plasma: Alice is a teacher on a school where they use computers as a learning aid. She has set up all computers in the classroom to display a single shared activity in plasma. Now Alice can modify this activity on her computer depending on what she teaches that day, and all the children immediately see changes she made on their ...read more...
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Well, I don't think I've mentioned this before, but I stumbled across possibly the best reason yet to move our entire company over to a fully FOSS solution (remember I'm only the Systems Admin/Programmer here).
The program that has given me so much hope is SeamlessRDP. This little tool allows me to run all our companies Windows-only applications on any Linux machine by streaming the application over the network. This means that the application acts just like another program on the users desktop - but in reality it is being run from a Windows server over the network.
For me, this is huge news.
Recently in a Directors meeting we discussed the pending need to start updating our systems because in 2014 Microsoft will end update support for Windows XP. The Directors didn't like this because we have around 50 computers and laptops and the upgrade costs for our company would be a huge hit on our resources.
Given this situation, I gave them a short presentation on the state of Open Source ...read more...
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| Linked by Thom Holwerda on Sat 5th Nov 2005 17:51 UTC, submitted by AdriAn Avila Rumors circulating that Novell is going to kill off its popular Linux desktop lines are completely false.
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| "Red: Thanks, Ken. The energy in this place is truly amazing! These two industry giants intend to settle the score once and for all, and only one can hold the title of Universal Linux Window Manager.
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 Hi everyone,
we've noticed that there are just few people who are using our knowledge base/help feature. Many don't even know that we have implemented this feature. A short reminder: every application on openDesktop.org network e.g. kde-apps.org or KDE-look.org can have its own small user generated FAQ. If you have a question or a problem with an application you can post your question together with a description and up to three screenshots. Other can help you with the problem via comments or share tips. And if you found the solutions you can add the answer to your question and mark the problem as solved. The owner of the application has full edit and delete right to the FAQ entries for his application.
Over the time, we hope to build a small user FAQ for every application.
We thought that a lot of people don't associate a knowledge base with our “help” feature. So we decided to rename the ...read more...
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| Topics: Personal, FOSS, KDE Another month has passed without a blog post. My new year’s resolution is an epic fail. Luckily, the rest of my life didn’t follow suit. Since I’m trying not to beat around the bush, I’ll get straight to the point. This post will be all about Yakuake, specifically the cool new features you’ll be seeing in the next release. First up is moving/rearranging tabs using drag and drop. Click and hold on a tab with the left mouse button (or right mouse button, if you’ve reversed them) and drag and drop to the desired location. Drop indicators will appear on the tab bar, indicating where you’re allowed to drop a tab. People using tabs in Konsole might be familiar with this behavior. 
You can now prevent tabs (formally called “Sessions” in Yakuake) from being closed. You can do this through the tab’s context menu (right-click on the tab name) and setting the “Prevent Closing” option. If you try to close that tab, you will ...read more...
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| I've seen superlative after superlative concerning the release of Firefox 3.0 , and in all honesty, it is making my stomach ache.
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| There will be some new weather providers coming soon. I am currently working on adding a Netherlands source (current conditions only provided free). Someone is working on a German source and I plan on adding 7 day forecast info to the NOAA provider hopefully soon. Just be aware, I do read what's out there from googleland and yes we do need more weather providers for you folks complaining 
As for using Marble, I'd like to, as NOAA provides .kml files which would make radar display very nice to have. But I'm only one person you know, help me out and things happen faster! Thanks to aseigo, we have Solid Network awareness support for the dataengine. Thanks to Petri Damst
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| Userbase is the wiki for application user information. It fills in a vital gap of information between traditional documentation and the usually too technical developer chatter. For at least KOffice it’s still in need of help, though. We want more tutorials for starters.
People like Anne Wilson have put a tremendous amount of work into userbase and I’m especially happy with the work on KWord she did. Userbase is for and by users, though. So we need help. Tutorials are in my experience the best way to get a new user starting with the application, get them over the initial threshhold if you may. Its also the easiest way to teach that new useful feature you like to others that may want to use it too. Spread the joy kind of way.
With the Release Candidate of KOffice2.0 out I want to call users everywhere to install the packages from their distro and play around with it. When they find something that they think is a “gotcha”, write about it. Put up ...read more...
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| My mobile phone recently stopped working, I handed it in for repair under warrenty. They fixed it, and flashed it with new firmware, removing all my settings and most importantly, my phone book. So, dear all of you, please send me a text message with your name if you think you should be in my phone book. And if anyone has any good backup strategies for phonebook and such of a nokia E71 for linux users, please use the comment field, preferably some thing nice clickyclicky thing that uses Qt4 or kdelibs of KDE 4
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| One of the most anticipated presentations at this year's KDE World Summit, better known as aKademy , was Zack Rusin's intriguing 'Beauty and Magic for KDE developers'. Zack is a long-time KDE developer who has recently been hired to work full time at Trolltech.
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