This article continues our series on what is new in Qt 5.1 with respect to OpenGL. If you haven’t already seen them, you may be interested in reading Part 1 and Part 2. Timer Queries OpenGL on the desktop exposes a very useful tool in the shape of timer query objects. These can be used […]
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Qt has QOpenGLBuffer to manage OpenGL buffer objects like per-vertex attribute data and element index buffers. OpenGL also has a container type call Vertex Array Objects managing vertex buffer objects.
Firtst in a blog series that shows how to use OpenGL with Qt 5. We shall take a quick look at Qt’s historical support for OpenGL and then describe the first batch of new features in Qt 5.1 that enhance Qt’s OpenGL
This blog post is part of an ongoing series about the internals of the QML engine. In the last blog post, we covered how bindings in the QML engine work. In this post, we’ll examine the different kind of bindings.Some of this content is already covered by my DevDays talk QtQuick Under the Hood. In […]
Today I want to talk about the usage of data models in Cascades. As you might know already, Cascades provides the abstract interface bb::cascades::DataModel, which is used by bb::cascades::ListView to retrieve and display arbitrary data. Cascades also provides a couple of convenience classes that implement this DataModel interface, namely ArrayDataModel GroupDataModel QListDataModel XmlDataModel While the […]
Today I’d like to talk a bit about a basic concept of software design: layers. When you design your application (or framework), you should try to define layers of concerns, like storage, business logic and UI. That’s no rocket science and is taught at schools and universities for a couple for years now already. However, […]
Continuing the series on KDAB contributions to Qt 5.0 (part 4), this time we cover community involvement, work on the Qt installer, QPointer and QWeakPointer modernization, and various macros. Community involement KDAB has been contributing to Qt since before the launch of Open Governance. With the launch of the Qt Project, everything changed regarding how […]
Continuing the series on KDAB contributions to Qt 5.0 (part 1, part 2, part 3), this time we cover C++11, and various optimizations C++11 support There have been many people and companies working on C++11 support in Qt 5. KDAB was involved in several Qt 5 features which relate to C++11. An overview of the […]
Continuing the series on KDAB contributions to Qt 5.0 (part 1, part 2), this time we cover itemmmodels, effective C++ and janitorial work. Itemmodels Improvements As KDAB took on the role of Itemviews Maintainer in Qt 5, naturally we were the primary contributor and reviewer of all itemmodels and itemviews patches. Several relevant changes have […]
Continuing the series on KDAB contributions to Qt 5.0, this time we cover some platform support and containers. Containers improvements The containers in Qt 5 recieved many improvements compared to their Qt 4 versions. Due to concerns of binary compatibility, such changes can only be undertaken for new major releases of Qt, but still there […]