Book Image

Tkinter GUI Application Development Cookbook

By : Alejandro Rodas de Paz
Book Image

Tkinter GUI Application Development Cookbook

By: Alejandro Rodas de Paz

Overview of this book

As one of the more versatile programming languages, Python is well-known for its batteries-included philosophy, which includes a rich set of modules in its standard library; Tkinter is the library included for building desktop applications. Due to this, Tkinter is a common choice for rapid GUI development, and more complex applications can benefit from the full capabilities of this library. This book covers all of your Tkinter and Python GUI development problems and solutions. Tkinter GUI Application Development Cookbook starts with an overview of Tkinter classes and at the same time provides recipes for basic topics, such as layout patterns and event handling. Next, we cover how to develop common GUI patterns, such as entering and saving data, navigating through menus and dialogs, and performing long-running actions in the background.You can then make your apps leverage network resources effectively and perform graphical operations on a canvas and related tasks such as detecting collisions between items. Finally, this book covers using themed widgets, an extension of Tk widgets that have a more native look and feel. Finally, this book covers using the canvas and themed widgets. By the end of the book, you will have an in-depth knowledge of Tkinter classes, and will know how to use them to build efficient and rich GUI applications.
Table of Contents (10 chapters)

Deleting items from a canvas

Besides adding and modifying items on a canvas, it is also possible to delete them via the delete() method of the Canvas class. Although the usage of this method is very straightforward, there are a couple of useful patterns that we will see in the next example.

Keep in mind that the more items displayed on a canvas, the longer it will take to Tkinter to redraw the widget. Therefore, it is convenient to remove unnecessary items if this could cause a performance issue.

Getting ready

For this recipe, we will build an application that randomly displays several circles on a canvas. Each circle removes itself once you click on it, and the window contains one button to clear all the items and another...