QML → QML - Tutorial 036. Working with Signals and Slots in QML

Slot, QML, Signal, cpp, Qt

This article is the most comprehensive description of signals and slots in QML compared to all previous articles on this site.

In this article, I will try to explain the following when working with Qt/QML + Qt/C++:

• ways to declare …

Django → EVILEG-CORE. Caching properties of model objects using model_cached_property

EVILEG, ESNF-C, model_cached_property, Django

To speed up the site, in addition to optimizing database queries, you can use caching.

Django allows you to cache:

• individual view , both Class Based View , and ordinary functions view
• whole templates or parts of these templates
• QuerySet …

Django → EVILEG-CORE. Using Google reCAPTCHA

ESNF-C, CORE, EVILEG, reCAPTCHA, Google

This will be the first article on the use of a set of established utilities that are present in the core of the EVILEG site. This part of the site’s program code is in open source, so I want to …

EVILEG → Release EVILEG-CORE 0.0.5

Django, Releases, Python, EVILEG, ECNF-C

Introducing the new release of EVILEG-CORE 0.0.5.

The following changes are included in this release:

• cached_property renamed to model_cached_property
• cache_invalidate_cached_property renamed to invalidate_model_cached_property
• added invalidate_cache method in EAbstractActivity as coding arrangement
• added cache_invalidate_activity
• model_cached_property , invalidate_model_cached_property , cache_invalidate_activity were moved …

Qt → A fast and thread-safe pool allocator for Qt - Part 1

Qt, thread, performance, allocator

The code on which this article is based is under development, with various commits pending under the Allocator topic. Note that the code uses various C++17 features.

A few months ago, the Qt Company developers were working on fixing how …

Django → Django - Tutoral 049. Optimizing Django Performance with a Real Project

Django, django-silk, performance

Recently I have devoted a lot of time to website optimization and now I would like to talk about it.
This article will explain the use of the select_related and prefetch_related methods in QuerySet, as well as their differences. I …

Qt → Running Qt Quick on Vulkan, Metal, and Direct3D - Part 3

Windows, Qt, OpenGL, Vulkan, macOS, Quick, Graphics, Embedded, Desktop

In the third part of the Qt graphics series, we'll look at how shaders are handled in Qt Quick in Qt 5.14 when switching the scene graph to rendering through QRhi and the Qt Rendering Hardware Interface (Qt's hardware rendering …

Qt → Undocumented QMake - CONFIG += resources_big

Qt, QMake, resource

Our project uses a very large number of resources, both ordinary icons and svg images. At some point, the project stopped assembling on developers' PCs with a small memory capacity of 16 GB.

The problem turned out to be that …

EVILEG → Release EVILEG-CORE 0.0.4

ESNF-C, EVILEG

After about 5 months of refinement of the site, I release a more elaborate version of the evileg_core package.

This release includes both new functions and utilities, and the old functionality has been finalized. For example, Markdown field behavior has …

Projects based on Qt → Release of C ++ / Qt deployment utility CQtDeployer v1.3.0

Qt, cqtdeployer, deployment, QML

The release of the cross-platform utility CQtDeployer is presented. The utility received a number of new features. The source code for the CQtDeployer components is licensed under LGPLv3 and is freely available on GitHub . This utility is used as …