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Tkinter GUI Application Development Blueprints, Second Edition

You're reading from   Tkinter GUI Application Development Blueprints, Second Edition Build nine projects by working with widgets, geometry management, event handling, and more

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Product type Paperback
Published in Mar 2018
Publisher Packt
ISBN-13 9781788837460
Length 422 pages
Edition 2nd Edition
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Author (1):
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Bhaskar Chaudhary Bhaskar Chaudhary
Author Profile Icon Bhaskar Chaudhary
Bhaskar Chaudhary
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Table of Contents (12) Chapters Close

Preface 1. Meet Tkinter FREE CHAPTER 2. Making a Text Editor 3. Programmable Drum Machine 4. Game of Chess 5. Building an Audio Player 6. Paint Application 7. Piano Tutor 8. Fun with Canvas 9. Multiple Fun Projects 10. Miscellaneous Tips 11. Other Books You May Enjoy

Defining getter and setter methods

In our previous section, we needed to know the value of a button in a given row and column of the button matrix for a given pattern. If the value was True, we colored the button green. If the value was False, we colored it in an alternative color.

We can get the value of the button by calling this line of code:

self.all_patterns[self.current_pattern.get()]['is_button_clicked_list'][row][col]

Notice how this line has four sets of square brackets, []. Since this nested super-scripting business can soon get ugly, we encapsulated this logic in a method named get_button_value(row, col). Now, whenever we need to get a button's value, we can simply call this method with the right parameters.

Now our code will not be littered with those ugly nested superscripts. Whenever we want to get the value of a button, we can call the get_button_value...

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