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Qt5 C++ GUI Programming Cookbook

You're reading from   Qt5 C++ GUI Programming Cookbook Practical recipes for building cross-platform GUI applications, widgets, and animations with Qt 5

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Product type Paperback
Published in Mar 2019
Publisher Packt
ISBN-13 9781789803822
Length 428 pages
Edition 2nd Edition
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Authors (2):
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Lee  Z Eng Lee Z Eng
Author Profile Icon Lee Z Eng
Lee Z Eng
Lee Zhi Eng Lee Zhi Eng
Author Profile Icon Lee Zhi Eng
Lee Zhi Eng
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Toc

Table of Contents (15) Chapters Close

Preface 1. Look-and-Feel Customization with Qt Designer FREE CHAPTER 2. Event Handling - Signals and Slots 3. States and Animations with Qt and QML 4. QPainter and 2D Graphics 5. OpenGL Implementation 6. Using Network and Managing Large Documents 7. Threading Basics - Asynchronous Programming 8. Building a Touch Screen Application with Qt5 9. XML Parsing Made Easy 10. Conversion Library 11. Accessing Databases with SQL Driver and Qt 12. Develop Web Applications using Qt WebEngine 13. Performance Optimization 14. Other Books You May Enjoy

Rendering and animation

When it comes to an application that renders graphics and animation, good performance is critical. Users can easily notice any performance issue when the graphics are not animating smoothly on screen. In the following example, we will look at how we can further optimize a graphics-heavy Qt Quick application.

How to do it...

To learn how to render animation in QML, follow this example:

  1. Create a Qt Quick Application - Empty project. Then, right-click on the Resources icon under our project panel and add tux.png into our project's resource:
  1. Open up main.qml and change the window size to 650 x 650. We will also add id to the Window item and name it window:
Window {
id: window
visible: true...
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