Posts Tagged ‘Qt Quick’

Developing QML Application on Symbian

Tuesday, December 28th, 2010

I have never developed anything on Symbian platform and the reason for this is that I couldn’t care less about the Symbian before. I have always been more into about Qt and gadgets that run Linux rather than Symbian.

Now the things have changed a bit – it’s possible to develop Qt applications for Symbian platform which makes  easier to start app development on Symbian for me as a Qt developer. The other reason is, thanks to Qt Ambassador program, that I happen to own N8, which btw is a pretty good HW. To be honest, I can’t praise much the UX on N8, but still, it’s a good hardware.

So I have spent couple of evenings to getting familiar with Symbian development. The most natural way to start it (for me) is of course trying to port QuickFlickr for N8. Before writing more stuff, here’s the video where I run the latest version of QuickFlickr with new UI on N8.

(more…)

Tags: , , , , , ,
Posted in Qt, Symbian | 2 Comments »

Using QML with 3D and OpenGL

Monday, November 8th, 2010

I’m a real newbie when it comes to OpenGL, but my personal plan is to try to learn as much as possible about OpenGL ES 2.0 and be able to understand it better e.g. how things like Qt Scene Graph works. Of course, it would be nice to be able to contribute to the Qt Scene Graph project too at some point.

Now I have spend few evenings trying to study how you can do things with OpenGL and I went little bit side tracked at some point. I started do some research how could use a QML application in 3D. The solution was actually much easier than I thought. Here’s the PoC video about running Samegame, the QML demo application rendered on a 3D cube.

As you can see from the video, it’s not perfect yet. The mouse events aren’t delivered with the correct coordinates to the QML item, but it shouldn’t be a big deal to transform them to the correct coordinates.

(more…)

Tags: , , , , , ,
Posted in Maemo, MeeGo, Qt | 6 Comments »

Playing with Qt Scene Graph

Monday, November 1st, 2010

I’ve planned to get familiar with Qt Scene Graph for a several months now, but Gunnar Sletta’s presentation at the Qt Developer Day 2010 in Munich kicked me to actually do something. The goal of my Qt Scene Graph research project can be listed as follows:

  • How to build and use Qt Scene Graph
  • Get the whole picture of scene graph architecture
  • And check out the code i.e how it works
  • Try to create something of your own by using Qt Scene Graph

Before going any further, I go directly to the last bullet point and show a video about small QML demo which uses Qt Scene Graph. I borrowed the particle parts from Qt Scene Graph’s testing code and created few vertex and fragment shaders for rotation, scaling and manipulating colors.

(more…)

Tags: , , , , , ,
Posted in Maemo, MeeGo, Qt | 7 Comments »

QuickFlickr on N900

Sunday, August 15th, 2010

Last spring I started to write QuickFlickr application i.e. a Flickr client for N900. Back then I wrote this article of it. For me this is just a learning process to study QML and trying to figure out how I can write a real application using C++ for a lower layer and QML for the UI.  The biggest challenge so far has been to design C++ side so that it provides usable interface to QML side. Before going too deep into details here’s the video about QuickFlickr running first on OS X and after that on N900.

(more…)

Tags: , , , , ,
Posted in Maemo, MeeGo, Programming, Qt | 9 Comments »