Book Image

Cross-Platform Development with Qt 6 and Modern C++

By : Nibedit Dey
Book Image

Cross-Platform Development with Qt 6 and Modern C++

By: Nibedit Dey

Overview of this book

Qt is a cross-platform application development framework widely used for developing applications that can run on a wide range of hardware platforms with little to no change in the underlying codebase. If you have basic knowledge of C++ and want to build desktop or mobile applications with a modern graphical user interface (GUI), Qt is the right choice for you. Cross-Platform Development with Qt 6 and Modern C++ helps you understand why Qt is one of the favorite GUI frameworks adopted by industries worldwide, covering the essentials of programming GUI apps across a multitude of platforms using the standard C++17 and Qt 6 features. Starting with the fundamentals of the Qt framework, including the features offered by Qt Creator, this practical guide will show you how to create classic user interfaces using Qt Widgets and touch-friendly user interfaces using Qt Quick. As you advance, you'll explore the Qt Creator IDE for developing applications for multiple desktops as well as for embedded and mobile platforms. You will also learn advanced concepts about signals and slots. Finally, the book takes you through debugging and testing your app with Qt Creator IDE. By the end of this book, you'll be able to build cross-platform applications with a modern GUI along with the speed and power of native apps.
Table of Contents (17 chapters)
Section 1: The Basics
Section 2: Cross-Platform Development
Section 3: Advanced Programming, Debugging, and Deployment

Understanding particle simulations

Using particle systems, you can simulate effects such as explosions, fireworks, smoke, fog, and wind. Qt Quick includes a particle system that enables these types of complex, 2D simulations, including support for environmental effects such as gravity and turbulence. Particles are most commonly used in games to add subtle and visually appealing effects to currently selected items in lists or activity notifiers.

ParticleSystem, Painters, Emitters, and Affectors are the four main QML types in this particle system. The ParticleSystem system includes painter, emitter, and affector types. The ParticleSystem type connects all of these types and manages the shared timeline. They must all share the same ParticleSystem in order to interact. Subject to this constraint, you may have as many particle systems as you want, so the logical separation is to have one ParticleSystem type for all the types with which you want to interact, or just one if the number...