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Tkinter GUI Application Development Cookbook

You're reading from   Tkinter GUI Application Development Cookbook A practical solution to your GUI development problems with Python and Tkinter

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788622301
Length 242 pages
Edition 1st Edition
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Author (1):
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Alejandro Rodas de Paz Alejandro Rodas de Paz
Author Profile Icon Alejandro Rodas de Paz
Alejandro Rodas de Paz
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Table of Contents (10) Chapters Close

Preface 1. Getting Started with Tkinter FREE CHAPTER 2. Window Layout 3. Customizing Widgets 4. Dialogs and Menus 5. Object-Oriented Programming and MVC 6. Asynchronous Programming 7. Canvas and Graphics 8. Themed Widgets 9. Other Books You May Enjoy

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...

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