Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

By : Alan D. Moore
4.5 (2)
Book Image

Python GUI Programming with Tkinter, 2nd edition - Second Edition

4.5 (2)
By: Alan D. Moore

Overview of this book

Tkinter is widely used to build GUIs in Python due to its simplicity. In this book, you’ll discover Tkinter’s strengths and overcome its challenges as you learn to develop fully featured GUI applications. Python GUI Programming with Tkinter, Second Edition, will not only provide you with a working knowledge of the Tkinter GUI library, but also a valuable set of skills that will enable you to plan, implement, and maintain larger applications. You’ll build a full-blown data entry application from scratch, learning how to grow and improve your code in response to continually changing user and business needs. You’ll develop a practical understanding of tools and techniques used to manage this evolving codebase and go beyond the default Tkinter widget capabilities. You’ll implement version control and unit testing, separation of concerns through the MVC design pattern, and object-oriented programming to organize your code more cleanly. You’ll also gain experience with technologies often used in workplace applications, such as SQL databases, network services, and data visualization libraries. Finally, you’ll package your application for wider distribution and tackle the challenge of maintaining cross-platform compatibility.
Table of Contents (22 chapters)
19
Other Books You May Enjoy
20
Index
Appendices

Working with fonts in Tkinter

Some of our data entry users have complained that the font of the application is just a little too small to read easily, but others dislike the idea of you increasing it because it makes the application too big for the screen. To accommodate all the users, we can add a configuration option that allows them to set a preferred font size and family.

Configuring Tkinter fonts

Any widget in Tkinter that displays text allows us to specify a font, typically through its font configuration property. For widgets that support tags, we can also specify font settings for each tag. We've been using the font argument as far back as Chapter 1, Introduction to Tkinter, but now it's time to take a deeper look into what Tkinter allows us to do with fonts.

There are three ways of specifying a widget's font in Tkinter: using a string, using a tuple, and using a Font object. Let's take a look at each one.

Configuring fonts with strings and...