Book Image

Mastering Qt 5 - Second Edition

By : Guillaume Lazar, Robin Penea
Book Image

Mastering Qt 5 - Second Edition

By: Guillaume Lazar, Robin Penea

Overview of this book

Qt 5.11 is an app development framework that provides a great user experience and develops full capability applications with Qt Widgets, QML, and even Qt 3D. Whether you're building GUI prototypes or fully-fledged cross-platform GUI applications with a native look and feel, Mastering Qt 5 is your fastest, easiest, and most powerful solution. This book addresses various challenges and teaches you to successfully develop cross-platform applications using the Qt framework, with the help of well-organized projects. Working through this book, you will gain a better understanding of the Qt framework, as well as the tools required to resolve serious issues, such as linking, debugging, and multithreading. You'll start off your journey by discovering the new Qt 5.11 features, soon followed by exploring different platforms and learning to tame them. In addition to this, you'll interact with a gamepad using Qt Gamepad. Each chapter is a logical step for you to complete in order to master Qt. By the end of this book, you'll have created an application that has been tested and is ready to be shipped.
Table of Contents (16 chapters)

Discovering the Animation Framework

Your application works like a charm. It's now time to look at how we can make it jump and move, or, in a word: live. The Qt Animation Framework can be used to create and start animations of Qt properties. The property value will be smoothly interpolated by an internal global timer handled by Qt. You can animate anything as long as it is a Qt property. You can even create a property for your own object using Q_PROPERTY. If you don't remember much about Q_PROPERTY, please refer to Chapter 7, Third-Party Libraries Without a Headache.

Three main classes are provided to build animations:

  • QPropertyAnimation: Animates one Qt property animation
  • QParallelAnimationGroup: Performs multiple animations in parallel (all the animations start together)
  • QSequentialAnimationGroup: Performs multiple animations in sequence (the animations run one by...