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

Testing in Qt

Unit testing is a way of testing a simple application, class, or function using an automated tool. We will discuss what it is and why we would like to do it before going over how to incorporate it into our approach using Qt Test. Unit testing is the process of breaking down an application into its smallest functional units and then testing each unit with real-world situations within the initiative's framework. A unit is the smallest component of an application that can be tested. A unit test in procedural programming usually focuses on a function or process.

A unit in object-oriented programming is usually an interface, a class, or a single function. Unit testing identifies issues early in the implementation process. This covers glitches in the programmer's implementation as well as defects in or incomplete portions of the unit's specification. During the creation process, a unit test is a short code fragment developed by the developer of the unit to...