Yet another thing that’s not automagic in Qt.
Here’s a python solution:

This will also resize the window, adapting to the desktop size.
Found and adapted from the Qt interest archive.

Many things are very easy to accomplish in Qt. Qt’s designer is a great help with that. But the is no option to simply “enable” scrollbars for a frame. Also, the QScrollArea can nowhere be found in the designer. The solution is actually quite simple:

1. Add the component you want to be scrollable (QFrame, QLabel, …) in the designer as usual
2. In the application code:
   1. Create a new QScrollArea
   2. Set the parent of the widget you created in the designer to “None”
   3. Set the widget of the QScrollArea to the widget from step 1
   4. Insert the QScrollArea to you ui

And here’s some example code (boiled down to the essentials):

You would probably write this somewhere in you application-constructor right after you call setupUi.

This will insert the scroll area at the top of vboxlayout1 (see the doc for insertWidget). You can of course also use addWidget.

It’s a shame that there’s no direct support for QScrollArea in designer. Maybe we will see it in some future release.

An example for C++ can be found in the Qt Forums.

I never cared about which terminal to chose. I usually ended up with aterm on non-KDE boxes and Konsole on KDE boxes. This comparison (and the attached comments) is actually quite interesting.

The results were quite surprising 😉

Oh yess… rants… I love to rant… and after my adventures of today and reading the last post, I have to dump my thoughts as well. And this one is about one of our web-providers in our oh-so technically advanced country. Or so they claim.
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Due to inane network restrictions I am maintaining several copies of my vimrc file. I would syncronize it though other means. Alas, the restrictions not only cover the network. So I have to resort to simply posting it here.

This is not meant to be an explanation of vim configuration file. However, it contains lots of comments, and might prove a good primer/starting-point. Eventually I will also include other modifications I made in my vim-home-folder as they are either used in the vimrc or just plain useful 😉

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Oholoh is a site that keeps code statistics of open-source projetcs. It’s very interesting to browse though the different projects and look at their metrics.

It can also be a nice incentive to get people do commit on a regular basis, as it adds a sort of healthy competition to the development cycle.

Anyhow…. Great idea, and it already keeps track of quite a number of projects.

That’s all I have to say!

A few months ago, I decided to write a “quick” introduction to the LAB color space.
But instead of just writing the “hey! look, I can increase the luminosity of my image without losing color information”-type of post, I decided to get intimate with LAB and make the fuzzier concepts (the A and the B) a bit easier to understand using practical examples.

The reason why I still haven’t written more about LAB is simple. I got hooked! The more I read about LAB the more I am intrigues by the possibilities and the more I read about it. It’s a vicious circle.

I am now working on my 3rd attempt of the first example (yes, the usual-luminosity-suspect 😉 ) and I am still not quite satisfied. My recent discovery is how stupidly easy one can fix a color-cast in an image with LAB. With this technique you can even get rid of light fog or haze.

However, creating, and annotating, the example images is very time-consuming. And until end of summer I am still very busy, so I will have to postpone my posts a few months 😐

Stay tuned!

My preferred way to deploy python applications on Windows is to use py2exe.

py2exe is a Python Distutils extension which converts Python scripts into executable Windows programs, able to run without requiring a Python installation.

If you run in trouble with sip, read on…
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I create a small Flickr API interface for PHP5 which takes advantage of the Overloading feature of PHP5.

Using the __call method we can dynamically create an interface to all the Flickr API functions using only a very small script.

The name of the class is purely ironic as it is a very simple and easy-to-use class and far from Overkill.

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