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

Animation in Qt Widgets

The animation framework simplifies the process of animating a GUI element by allowing its properties to be animated. Easing curves are used to control the animations. Easing curves describe a function that controls the animation's speed, resulting in various acceleration and deceleration patterns. Qt supports linear, quadratic, cubic, quartic, sine, exponential, circular, and elastic easing curves. The property animation class provided by Qt, known as the QPropertyAnimation class, is one of the more common ways to animate a GUI element. This class is part of the animation framework, and it uses Qt's timer system to change the properties of a GUI element over a specified time period.

To create animations for our GUI application, Qt provides us with several subsystems, including a timer, timeline, animation framework, state machine framework, and the Graphics View framework.

Let's discuss how to use property animation with QPushButton in the...