I have been in Qt Developer Days twice, in the previous two years. This year I am still going there, but only the San Francisco event, for the first time as a participant (as opposed to as a speaker). I’ll bring other new engineers at Sencha, too.

Given an IP address, there are different ways to obtain the approximate location: online web service or offline database. It is far from perfect, but it is very useful to give some initial guess before locking into GPS signals or using WiFi-based tracking.

Over a year ago, I showed how to render OpenStreetMap on your Qt application. While there were few follow-ups after that, I never found some time to clean it up. But worry no more, here is one OpenStreetMap-related example (at roughly 250 lines of code) I just made public, freshly available from X2 ...

In the spirit of clean-up-and-publish, here is another code example of X2: a subclass of QPlainTextEdit which acts as a nice and minimalistic JavaScript editor. Basically it just adds a sidebar for the line number and a syntax highlighter. Thanks to QPlainTextEdit and QSyntaxHighlighter, this editin...

Happy Eid Al-Fitr to all!

In the recent weeks, sporadically I have been working on QtWebKit to fix the missing blur support for Canvas and CSS shadow (see the tracking bug 34479). This brings some good memory; before I left Nokia, I was involved in prototyping the special effect stuff, both for the low-level (non-public) QPi...

Being part of the awesome Sencha Team, I did shoot a quick attempt to run Sencha Touch, more precisely its Kitchen Sink demo, on Maemo-powered Nokia N900. Since Sencha Touch targets WebKit but Maemo default browser is Gecko/Firefox-based, I crafted a mini launcher which wraps Sencha Touch in QtWebKi...

If you enjoy the box of marbles demo, now we extend it to include some basic network support. The premise is simple, look at this short video first (or watch on YouTube):

Now I work for Sencha, the company behind the leading JavaScript frameworks such as Sencha Touch, Ext JS, Ext GWT, Ext Designer, jQTouch, Raphaël, Connect, which empower developers to create, deploy and optimize application using web-standard technologies (HTML5, CSS, JavaScript). Beside, it’s a hot...

It’s released!

The next logical step after simple bouncing ball example is something which uses a real, full-featured physics engine. Box2D is usually the popular choice. Combining Box2D with Qt has been done by many people, recently demonstrated before by Andreas and Thorbjørn. I decided to pick something else, i...

Eclair still rocks 🙂

First of all, I apologize for my laziness in updating X2 with new code example. I have actually written quite a number of interesting examples, some of which have even been shown back in March, during my talk at Bossa Conference 10, though I did not find the time to clean up and polish them. Althoug...

Today is my last day at Qualcomm.

In some news, MapQuest embraces OpenStreetMap, launches the maps site at open.mapquest.co.uk using the data from OpenStreetMap, as well as sets aside $1 million funding to improve the maps situation in USA. Let’s see if other maps services will follow.

Adam.prototype Human > Adam.timestamp 1279148700 > Adam.length 50.17 > Adam.weight 3.4 > Adam.health Checking…. Good > Adam.mother.health Checking… Good > Adam.father.status “Happy”

Sweet memories, it was fun to derive it.

Beside exploring San Diego, I had done some coding intermittently only. My apology if I do not update X2 with fresh new examples often enough.

Since I’ve not been blogging for a while, let me do a post on some pictures (plus the stories) instead.

In few hours, I am scheduled to fly to San Francisco, bracing for the impact of Google I/O 2010!

While I’m there, let me just quickly blog about it. Using the developer version of Chromium on OpenSUSE, I just run it with the following arguments:

Just like Rich’s trick with QNetworkAccessManager, I have done something similar which I call tracenet (around 150 lines of code). Though I have committed this example to X2 some time ago, only now I have the chance to blog about it.

Continuing from the saga I started some time ago, at least now I got to the point where it’s rendered anti-aliased in full color:

At the risk of starting another yet-will-be-unmaintained project, sometime ago I decided to continue learning about graphics stuff in my spare time. I will not announce it of course until its code is better for public consumption. However, I really can’t contain my excitement when it reaches an impo...

Tomorrow, we (a bunch of Qualcomm folks working on WebKit) will go up north. We’ll be at Apple HQ in Cupertino for the WebKit contributors meeting. I look forward to meeting all the great WebKit hackers (again) face-to-face!

I guess a simple proxy server should have been an example in Qt Network module. What I mean of course a real proxy server based on Qt, not about using a proxy server via QNetworkProxy class. After all, there are other more complex examples like the torrent client and Google suggest (yeah, blame me f...

One day Helder showed me Project Euler, a collection of interesting math problems to be solved using computer programs.

As I promised before, here is a fresh X2 example. Those who attended Bossa Conference 10 and followed my talk are lucky to have seen it for the first time there. In fact, this example is ridiculously simple that I am not surprised at all if somebody has done this ages ago.

I got few proposed designs after I announced X2 project back then. It is tough to pick the winner cause they are all very good. In the end, the one from Elvis Stansvik becomes the new official logo of X2:

Right now I am in Manaus, in the middle of the Amazon, Brazil. Good weather, beautiful nature. Fresh tropical rain, feels just like home.