Archive for the ‘MeeGo’ Category

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I’m looking for a new Job!

Monday, August 20th, 2012

Things ain’t go always like you plan and therefore I’m starting to look for a new job. If you have read my blog, I’m pretty sure that you know I like Qt. So here’s my wish list what I’d like to do and what I’ve done:

  • I like to use Qt and Linux / Mac
  • I’m a ScrumMaster and I like scrum, so I like working in teams
  • I’m used to of multinational and distributed environments
  • Job should be in Finland  so hear me Jolla, Digia, Futurice, etc:)
  • I can keep Qt / QML trainings too
  • I like people, so I’m used to of working near to clients
  • I have worked both on mobile (Nokia N9) and on industrial side
  • I’ve released few apps to iOS side too
QML Portfolio
(update) I added my QML portfolio here too. It doesn’t include all the stuff, but the coolest ones. The last three videos are stuff that I’ve done for my previous employer.

If you are interested in to hire me, you can download my CV below or send me email directly to marko(dot)a(dot)mattila(at)gmail(dot)com. Oh yes, and I could start my new job (most likely) in the beginning of September.

Marko-Mattila-CV

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Posted in General, MeeGo, Qt | No Comments »

Simple Guide to Port Qt4 QML App to Qt5

Monday, December 19th, 2011

 

I thought, that it could be a good idea to write a short post how to port an existing Qt4 QML application to Qt5. At first, if you are not familiar how Qt will change for the next version, you should read this doc: The Road to Qt 5. The one of the biggest changes is happening under to hood of QML / QtDeclarative module.  As Lars Knoll, wrote in the document, there is a new scene graph, which will replace the old QGraphicsView/QPainter based implementation. So basically what this means is that the gap between QML and HW gets smaller. In other words, in Qt5 you will get a kick ass performance for your QML applications plus extra features like shaders. Yes, you can also use shaders in your QML code!

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Posted in MeeGo, Programming, Qt | No Comments »

QuickFlickr Journey

Thursday, October 20th, 2011

The Beginning

It was February 2010 when I started my experimental project how to use QML and C++ together in a same application. At that time, there wasn’t too much information and examples how you should integrate e.g. C++ backend to QML UI. Remember that Qt Quick was released about 6 months after I started my project  so it was lacking quite a lot documentation back then. The QML API was constantly changing too, not any big changes, but still enough to cause me headache.

My original idea was that it would be nice to make a client application for Flickr. In the first phase, I started to look for Qt based Flickr API and I found a simple Flickr API called QtFlickr. In the next phase, I wrote a simple wrapper on top of QtFlickr, which was exposed to QML side. The first UIs were quite rough and basically I was only trying to show what ever content from Flickr. Here’s an old video of the one of the first UIs of the QuickFlickr.

I have rewritten QuickFlickr UI many times during this journey. Mostly because, I found that it was so easy to prototype and try different things with QML. I think, when I ran the first versions of QuickFlickr on N900 and  N8, I started to realize how I would like the UI to look and act like. QuickFlickr has been unofficially released (for testing) couple of times and I’ve got really valuable feedback from many users.

Btw, one interesting fact is that there are over 600 authenticated QuickFlickr Symbian^3 and Maemo5  users even though it hasn’t been officially released to any of those devices yet.

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Posted in Maemo, MeeGo, Qt | No Comments »

Developing QuickFlickr for N950

Sunday, August 7th, 2011

I had a little break of developing Qt stuff, but after receiving N950 from Nokia, I decided to continue with QuickFlickr development. The original target HW for QuickFlickr has always been Nokia’s next “linux phone”. Even though, Nokia kindly gave me two Symbian devices, I never got so excited to do development on Symbian platform/devices.

I also feel responsible for continue my Qt Ambassador project (I need to update the project page. It’s so out-of-date) too, so here I am now, with a one preview video where QuickFlickr runs quite smoothly on N950. Let’s watch it first:)

The video above is quite heavily edited because the lack of my video shooting skills. With editing I mean that I did stupid things while shooting the video so I cut few clips away.

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Posted in Maemo, MeeGo, Qt | No Comments »

Tip of the day – Make Qt Creator to compile QML files to resource file on every build

Thursday, August 4th, 2011

I like to distribute my QML application so that everything comes with a single binary executable. In practice this means that I have defined that all my QML files are compiled into binary using Qt’s resource compiler. Resource system in Qt is quite nice, but there is annoying bug in Qt creator. Sometimes it doesn’t recompile resources even though I have modified a QML file. This means that you need to select “Clean” and “Build” from Qt creator in order to get modifications compiled. This takes time.

Some time ago, I figured out a workaround for this. You can add a custom build step to your Qt Creator’s project. This build step modifies e.g. an image that is included the project and then resources are recompiled. Here’s a screenshot how you can do it.

Custom build step to make rcc run every time you compile.

I added the custom build step to the first (touch quickflickr.png) and when my project is being compiled it notices that some of the resources have changed and it runs resource compiler too. This is far from an elegant solution, but at least it works for me and I don’t need to run “Clean & Build” which takes for ever. At least, it feels so after you have recompiled your project for the 10th time.

UPDATE: I thought, that there would have been a bug about this but couldn’t find a onet from Qt’s issue tracker so I created a new one: QTCREATORBUG-5743.

I hope this trick will help some one else too. Thanks for reading my blog and thanks for Bale to encourage me to write this “tip of the day” post. Cheers!

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Posted in Maemo, MeeGo, Programming, Qt | 4 Comments »

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