Book Image

Hands-On Embedded Programming with QT

By : John Werner
Book Image

Hands-On Embedded Programming with QT

By: John Werner

Overview of this book

Qt is an open source toolkit suitable for cross-platform and embedded application development. This book uses inductive teaching to help you learn how to create applications for embedded and Internet of Things (IoT) devices with Qt 5. You’ll start by learning to develop your very first application with Qt. Next, you’ll build on the first application by understanding new concepts through hands-on projects and written text. Each project will introduce new features that will help you transform your basic first project into a connected IoT application running on embedded hardware. In addition to gaining practical experience in developing an embedded Qt project, you will also gain valuable insights into best practices for Qt development and explore advanced techniques for testing, debugging, and monitoring the performance of Qt applications. The examples and projects covered throughout the book can be run both locally and on an embedded platform. By the end of this book, you will have the skills you need to use Qt 5 to confidently develop modern embedded applications.
Table of Contents (22 chapters)
Free Chapter
1
Section 1: Getting Started with Embedded Qt
5
Section 2: Working with Embedded Qt
10
Section 3: Deep Dive into Embedded Qt
14
Section 4: Advanced Techniques and Best Practices
Appendix A: BigProject Requirements

Simplifying defining Q_PROPERTY()

This is the simplest of the macros, PROPERTY. It takes a data Type and the Name of the property, then takes care of not only generating the Q_PROPERTY statement, but also the required getter and setter methods:

/**
 * @def PROPERTY(Type, Name)
 *
 * @brief   A macro to define a class "Property" (Q_PROPERTY).
 * @param   Type    - the type of the property
 * @param   Name    - the name of the property
 *
 * This macro defines a Q_PROPERTY, its storage, and the required getter and
 * setter methods.  This allows the property to be accessed by through the
 * QObject or Q_GADGET system.  It also makes importing and exporting the class
 * to XML Streams very easy as the property system does most of the work for you.
 *
 * @note    This can only be used with a class that inherits from QObject or Q_GADGET
 */
#define PROPERTY(Type, Name)  ...