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 Models and Views in QML

Just like Qt Widgets, Qt Quick also implements Models, Views, and delegates to display data. The implementation modularizes the visualization of data to empower developers to manage that data. You can change one View with another with minimal changes to the data.

To visualize data, bind the View's model property to a Model and the delegate property to a component or another compatible type.

Let's discuss the QML types available for implementing the M/V pattern in a Qt Quick application.

Views in Qt Quick

Views are containers that display data and are used for collections of items. These containers are feature-rich and can be customized to meet specific style or behavior requirements.

There is a set of standard Views provided in the basic set of Qt Quick graphical types:

  • ListView: Lays out items in a horizontal or vertical list
  • GridView: Lays out items in a grid manner
  • TableView: Lays out items in a tabular...