Creating TUI Applications with Textual and Python
Creating TUI Applications with Textual and Python
About the Book
Learn how to create text-based user interfaces (TUIs) using Python and the amazing Textual package.
Textual is a rapid application development framework for your terminal or web browser. You can build complex, sophisticated applications in your terminal. While terminal applications are text-based rather than pixel-based, they still provide amazing user interfaces.
The Textual package allows you to create widgets in your terminal that mimic those used in a web or GUI application.
The intent of Creating TUI Applications with Textual and Python is you teach you how to use Textual to make amazing applications of your own. The first half the of the book will teach you everything you need to know to start developing a terminal application.
The book's second half has many small applications that you will learn how to create. Each chapter also includes challenges for you to complete to help cement what you learn or give you ideas for continued learning.
About the Author
Table of Contents
- Introduction
- Installation
- Audience
- About the Author
- Conventions
- Type Hinting
- Book Source Code
- Reader Feedback
- Errata
- Chapter 1 - Application Basics
- The App Class
- Adding Events
- Textual Widgets
- Composing Vs Mounting
- Suspending Your Application
- Exiting Your Application
- Wrapping Up
- Review Exercises
- Chapter 2 - Adding Styles in Textual
- The Styles Object
- Adding Styling to Widgets
- Applying a Splash of Color
- Changing Dimensions
- Units
- FR Units
- Using Padding
- Applying a Border
- Border Titles
- Adding an Outline
- Wrapping Up
- Review Exercises
- Chapter 3 - Using CSS in Textual
- Cascading Stylesheets
- The Document Object Model
- Using CSS Files in Textual
- Live Editing
- Using Selectors
- Using Combinators
- Creating and Using CSS Variables
- Nesting CSS
- Wrapping Up
- Review Exercises
- Chapter 4 - Working with DOM Queries
- The Query One Method
- Textual Queries
- The DOMQuery Object
- Getting the First or Last Widget
- Query Filters
- Query Exclusions
- Other Query Methods
- Wrapping Up
- Review Exercises
- Chapter 5 - Laying Out Your Widgets
- Vertical Layout
- Horizontal Layout
- Layouts with Containers
- Grid Layout
- Docking Widgets
- Using Layers
- Adding Offsets
- Nesting Layouts
- Wrapping Up
- Review Exercises
- Chapter 6 - Textual Events and Messages
- Messages and the Message Queue
- Bubbling Default Messages
- Custom Messages
- Preventing Messages
- The
OnDecorator
- Message Handler Arguments
- Asynchronous Handlers
- Wrapping Up
- Review Exercises
- Chapter 7 - Key and Mouse Events
- Key Events
- Widget Focus
- Binding Keyboard Events
- Action Methods
- Action Links
- Dynamic Actions
- Builtin Actions
- Mouse Events
- Wrapping Up
- Review Exercises
- Chapter 8 - Reactive Attributes
- Updating Your Attributes
- Validation
- Watch Methods
- Compute Methods
- Mutables
- Wrapping Up
- Review Exercises
- Chapter 9 - Screens
- Creating Screens
- Naming Screens
- The Screen Stack
- Changing Screen Opacity
- Modals
- Returning Data From Screens
- Adding Modes
- Wrapping Up
- Review Exercises
- Chapter 10 - Textual Dev Tools
- The Textual Demo Application
- Textual Keys
- Textual Colors and Borders
- Running in Development Mode
- Textual’s Developer Console
- Taking Screenshots
- The Command Palette
- Wrapping Up
- Review Exercises
- Chapter 11 - Creating a Calculator
- Designing the Calculator
- Creating the User Interface
- Adding Logic
- Wrapping Up
- Review Exercises
- Chapter 12 - Viewing Tabular Data with Textual
- Designing a CSV Viewer
- Creating the CSV Viewer Interface
- Adding the Viewer Logic
- Adding the Other Modules
- Adding a New Feature
- Wrapping Up
- Review Exercises
- Chapter 13 - Creating a Text Editor
- Designing a Text Editor
- Developing the Editor’s User Interface
- Adding the Editor Logic
- Refactor to Add Themes
- Wrapping Up
- Review Exercises
- Chapter 14 - Creating an MP3 Player
- Creating a Mock-up MP3 Player
- Developing a Proof-of-Concept
- Making the User Interface
- Adding MP3 Playback Logic
- Wrapping Up
- Review Exercises
- Introduction
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