Book Image

Pyside GUI Application Development- Second Edition - Second Edition

By : Venkateshwaran Loganathan, Gopinath Jaganmohan
Book Image

Pyside GUI Application Development- Second Edition - Second Edition

By: Venkateshwaran Loganathan, Gopinath Jaganmohan

Overview of this book

Elegantly-built GUI applications are always a massive hit among users. PySide is an open source software project that provides Python bindings for the Qt cross-platform UI framework. Combining the power of Qt and Python, PySide provides easy access to the Qt framework for Python developers and also acts as an excellent rapid application development platform. This book will take you through everything you need to know to develop UI applications. You will learn about installing and building PySide in various major operating systems as well as the basics of GUI programming. The book will then move on to discuss event management, signals and slots, and the widgets and dialogs available with PySide. Database interaction and manipulation is also covered. By the end of this book, you will be able to program GUI applications efficiently and master how to develop your own applications and how to run them across platforms.
Table of Contents (13 chapters)

Graphics and effects

We could create any custom graphics that we like by creating a custom widget and by reimplementing its paint event. This approach is very helpful when we are trying to create some small graphics, such as drawing graphs or to draw basic shapes. In order to create animations and more complex graphics, we will take help from the PySide's graphics view classes, which are explained as follows:

  • QGraphicsScene: This provides a surface to manage a large number of 2D graphical items

  • QGraphicsItem: This serves as the base class for all graphical items, such as ellipses, lines, and so on, in a graphics scene

  • QGraphicsView: This provides a widget to display the contents of a graphics scene

The graphic view classes can be used by creating a scene that is represented by a QGraphicsScene object first. Scenes can be associated with the QGraphicsView object to represent or view on the screen. Items that are represented by the QGraphicsItem object can be added to the scene. A scene is...