Comments, Code and Qt.

‘sudo ./script.sh: command not found’ on Ubuntu

kypeli — Mon, 13 Feb 2012 14:54:39 +0000

I am pretty sure I could run my script last week, but I cannot anymore today.

kypeli@ubuntu:~$ sudo ./myscript.sh [sudo] password for kypeli: sudo: ./myscript: command not found

Obviously this was very strange to me because the script was in the current working directory, all permissions looked fine and I could run the script just fine without sudo, which indicated that the shebang was ok.

Technorati Tags: bash, command not found, linux, script, shell, sudo, ubuntu

Sunday evening fun: Windows Phone 7 styled progress indicator in QML

kypeli — Sun, 22 Jan 2012 22:05:22 +0000

I started a new coding hobby project today. But instead of actually getting very far with the productive part of the project I got side tracked on something fun I wanted to try out (don't you just love when that happens That's not possible when coding at work...). I wanted to share this day's outcome with you.

Technorati Tags: qml, Qt, qt quick, wp7. windows phone

Porting MeeGo Qt Components apps to Symbian

kypeli — Mon, 12 Dec 2011 06:09:47 +0000

Of course I don't have all the answers to what needs to be done for any given MeeGo Qt Component based application to have it running on Symbian, but I think I have three general actions that need to be done when porting an app from MeeGo to Symbian; have it run with the resources, make the code compile and tweak the UI.

Technorati Tags: porting, qml, Qt, qt components, qt quick, symbian

I passed the Nokia Certified Qt Specialist test

kypeli — Fri, 09 Dec 2011 07:25:26 +0000

I just have to put it out here; I am now a Nokia Certified Qt Specialist which means I have the right to use the logo below. I have no idea where I would use it in the future, so let's have it at least here on my blog

Technorati Tags: Qt, qt specialist

A MeeGo developer’s endeavors to the Symbian Qt world

kypeli — Tue, 06 Dec 2011 20:08:17 +0000

I've been working with Qt for a while already and we all know what a great cross-platform framework it is. When Nokia bought Trolltech in 2008 it was clear that Nokia wanted to make Symbian development easier. However, the QWidget based toolkit would not fly on Symbian, or any other mobile platform for that matter, so Nokia built some mobile UI frameworks on Qt (and oh boy Nokia is good at building frameworks for everything. Everyone should have at least one framework, if not two. I could write another blog post about that...). But while people in Europe were fighting over their frameworks, it was not until the guys and gals in Brisbane came up with QML when everything changed. Qt could finally be cross platform again and in an elegant way!

Technorati Tags: MeeGo, podcatcher, Qt, qt components, symbian

Easy threading with QtConcurrent::run()

kypeli — Sun, 18 Sep 2011 05:51:16 +0000

The following scenario is probably familiar to you: you are doing some heavy computing or IO intensive things in your app, like accessing a database, the filesystem or reading data from the Internet, that blocks your UI thread which leads to that the UI freezes. If you are writing a Qt app then probably the first thing that comes to your mind is to subclass QThread and implement the run() method (although you should not do that). But before you do that, you should take a look at Qt Concurrent and what it can offer. There is a good chance that what you need is already provided by the Qt Concurrent framework.

Technorati Tags: concurrent programming, mutex, Qt, qtconcurrent, threads

Updates regarding Podcatcher for N9

kypeli — Wed, 17 Aug 2011 11:19:01 +0000

Podcatcher for N9 has been submitted to Nokia Store for approval! QA process is still pending. Let's hope it's soon available for download on your MeeGo Harmattan device! In the meantime, enjoy the latest screenshots from Podcatcher for N9. Many thanks to Nikui for help with the layout and UX!

Technorati Tags: harmattan, MeeGo, n9, podcasts, podcatcher

Introducing Podcatcher for Nokia N9

kypeli — Wed, 10 Aug 2011 21:45:32 +0000

Your intelligent podcast client.

Get it now!

Podcatcher for N9 is available from Nokia Store now! There is a free, lite, version that is limited to three subscriptions only. If you like Podcatcher for N9, I hope you will purchase the full version that has unlimited subscriptions. Links to Nokia Store are below.

Technorati Tags: harmattan, n9, n950, nokia, podcast client, podcasts, podcatcher

Why QNetworkAccessManager should not have the finished(QNetworkReply *) signal

kypeli — Sat, 30 Jul 2011 12:20:26 +0000

I was recently writing some network code in Qt using QNetworkAccessManager and again I did the mistake I've already done a few times. The reason for my mistake was that QNetworkAccessManager provides the finished(QNetworkReply *) signal.

Technorati Tags: c++, network programming, qnetworkaccessmanager, Qt

Sneak peek: Integrate your application with the Nokia N9 events view.

kypeli — Tue, 05 Jul 2011 20:20:24 +0000

I am working on a Qt C++ library that will integrate your application with the Nokia N9 MeeGo Harmattan event feed page. You can add and update items with your icon, text or even a list of images that will be shown on the event feed page. I still want to add some features and polish the code before publishing it, but the library will be open source.

Technorati Tags: c++, event page, harmattan, library, nokia n9, Qt