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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Introducing Grapher

I just found myself in the situation where i need to be able to create bargraphs.

Scritto da , il 29-06-2014
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Mac OSX 10.10 Yosemite beta vs 10.7.5 vs Ubuntu 14.04 on Macbook Air 2011

The new OSX will be released this fall but a Mac OSX Yosemite beta is already available online. I don’t care much about the “wow” effect around the new Apple products, so I tested this new Operative System comparing the old OSX Lion 10.7.5 and the current Ubuntu Linux 14.04 LTS for the stuff I care: the UNIX and the Web performance part, because I fear the upgrade OSX dilemma.

Scritto da , il 24-06-2014
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Qt and OpenGL Part 2: Rendering a 3D Model

This blog post is the second in a two part series that covers using OpenGL with Qt. Part One looked at how to use Assimp to load 3D models from some common 3D model formats. This post will cover how to render a 3D model using OpenGL and Qt.

Scritto da , il 19-06-2014
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Accessibility in Qt 5.3

The Qt community is welcoming and inclusive. With Qt we aim to enable everyone, no matter their background, to access and use the technology. From building applications with Qt, to being a user, we want to support everyone.

Scritto da , il 17-05-2014
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Using Qt to make Native Android apps

Can you build Qt apps that look, feel, and act like a regular Android app? Of course you can! It’s just a little harder.

Scritto da , il 10-05-2014
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MeteorJS on Freebsd 11 current

Meteor is a fantastic web framework, it bundles under the hood NodeJS, MongoDB and others open source packages. Unfortunatly the official support is only for Linux and Mac OS X operative systems. But if you need to deploy Meteor apps, another operative system may be considered.. Windows? No, Freebsd and for it's out-the-box ZFS support.

Scritto da , il 05-05-2014
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