Creating a PDF from a QtQuick 2 scene in SlideViewer

There are situations in which the slide deck needs to be available in PDF format in addition to the QML source

Scritto da , il 19-08-2014
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Qt WebChannel – bridging the gap between C /QML and the web

Hybrid applications, which mix a UI built with Qt Widgets or Qt Quick with embedded HTML websites, are very popular. In particular, something like an HTML 5 app framework is often requested by customers. Qt WebKit makes it trivial to embed HTML content in any graphical application. But how does one bridge the gap between C /QML on one side, and HTML/JavaScript on the other side?

Scritto da , il 19-08-2014
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EFF guide to cell phone use for US protesters

With major protests in the news again, we decided it's time to update our cell phone guide for protestors. A lot has changed since we last published this report in 2011, for better and for worse

Scritto da , il 17-08-2014
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Defragmenting Qt and Uniting Our Ecosystem

Over the last years, many changes have been happening in the Qt ecosystem. One of the biggest was the creation of Qt Project where Qt is now being developed as an open source project. The Qt Project was created to provide a space open for all to further develop and foster innovation for the Qt technology.

Scritto da , il 06-08-2014
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Freebsd vs Linux 2014 performance and features

I like UNIX/Linux operative systems, I use Free / Open Source softwares that run fine on GNU/Linux, FreeBSD, OSX, and sometimes also, Windows and other *BSD OSes. I think both environments have more or less the same features, so it’s more a personal choice than a technical one. However I also think that certain features clearly better in an OS than in the other.

Scritto da , il 04-08-2014
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Hawaii responsive user interface

This was written after FOSDEM but never had the time to finish it and do the video so with too many months of delay I've got some time in my hands to post about the Hawaii desktop environment responsive user interface.

Scritto da , il 03-08-2014
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Analysing QtQuick apps with GammaRay or “Why is my button gone?”

This is a typical situation when you program a GUI for an application. You have just created a new control, you start your application and… no control. But now: Is it obscured? Is it misplaced? Is it completely transparent or set to ‘invisible’? Is my custom OpenGL-stuff broken or is the item actually not created for some reason? Checking all these cases manually can be a time-consuming and exhausting task.

Scritto da , il 03-07-2014
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Recap of the Qt Contributors Summit

The Qt Contributors Summit occurred June 10-11 in Berlin. Here is a quick summary of my impressions:

Scritto da , il 03-07-2014
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Top 5 Atom Editor features and tweaks

atomn.png The Atom text-editor is the best practise of the text editors. You can keep it simple or you can tweak it like and IDE. The choice is yours. Imagine it as an Open Source Sublime Text or a modern VIM or Emacs :)

Scritto da , il 03-07-2014
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Visualizing data stored in Qt item models using Qt Data Visualization

Item models are a commonly used to store data in Qt applications, so the Qt Data Visualization enterprise add-on offers ready-made data proxies to facilitate the visualization of data stored in these models. The basic usage is the simple item model role to data item value mapping, but with Qt Data Visualization 1.1, more powerful options to map model data have become available.

Scritto da , il 29-06-2014
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