Summary
In this chapter, we discussed different graphics APIs and we learned how to use the QPainter class to draw graphics both on and off the screen. We also looked into the Graphics View framework and scene graph rendering mechanism. We saw how Qt provides the QPaintDevice interface and the QPainter class to perform graphics operations throughout this chapter. We also discussed the Graphics View classes, OpenGL framework, and shader tools. At the end of the chapter, we explored the animation and state machine framework in both Qt Widgets and Qt Quick.
In Chapter 9, Testing and Debugging, we will learn about debugging and testing in Qt. It will help you to find the root cause of issues and fix defects.