Blog Archives

Leaky lambdas and self referencing shared pointers

After a bit of a debugging session, I ended up looking at some code in a large project

The connection gets removed when the pointer inside m_foo gets de-allocated by the shared_ptr. But the connection target is a lambda

Posted in english, kde, qt

Let Qt models meet std::vector<std::tuple<…>>

The problem So. I was stuck with a container of tuples that I wanted to see in a Qt view (QTableView, QtQuick ListView or similar). So how to do that? Another problem: I haven’t been doing fun things with templates

Posted in english, kde, Pocket projects, qt

R is for Randa

This week I have been gathered with 38 KDE people in Randa, Switzerland. Randa is a place in a valley in the middle of the Alps close to various peaks like Matterhorn. It has been a week of intense hacking,

Posted in debian, english, kde, qt

Randa day 0

Sitting on Lake Zurich and reflecting over things was a great way to get started. After spending a bit of time in a train, I climbed part of a mountain together with Adriaan – up to the snow where

Posted in english, kde

So close, but so far away

Posted in english, kde

Compilers and error messages

So. I typo’ed up some template code the other day. And once again I learned the importance of using several c++ compilers. Here is a very reduced version of my code:

And let’s start with the compiler I was

Posted in english, kde, qt

KDE at Qt World Summit

So. KDE has landed at Qt World Summit. You can come and visit our booth and … hear about our amazing Free Qt Addons (KDE Frameworks) stories about our development tools meet some of our developers Talk about KDE in

Posted in english, kde, qt

Debconf 2015 – 6

There is more people with blue hair at Debconf than at an average Akademy. KDE – we need to do better :)

Posted in debian, english, kde

Getting a Q_INVOKABLE C++ function reevaluated by QML engine

Unfortunately, with all the normal magic of QML property bindings, getting a property updated in a setup that involves return values from functions isn’t really doable, like this:

I’m told there is a low priority feature request for a

Posted in english, kde, qt

QImage and QPixmap in a Qt Quick item

For reasons I don’t know, apparantly a Qt Quick Item that can show a QImage or a QPixmap is kind of missing. The current Image QML item only works with data that can be represented by a URL. So I

Posted in english, kde, qt