- Tkinter GUI Application Development HOTSHOT
- Table of Contents
- Tkinter GUI Application Development HOTSHOT
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Meet Tkinter
- 2. Making a Text Editor like Notepad
- 3. Programmable Drum Machine
- 4. Game of Chess
- Mission Briefing
- Structuring our program
- Structuring chessboard-and-pieces-related data
- Prepare for Lift Off
- Engage Thrusters
- Step 1 – creating a Piece superclass
- Step 2 – creating individual child classes for all pieces
- Step 3 – defining a method to return the piece instance
- Step 4 – creating the Board class
- Step 5 – displaying pieces on board for a given FEN notation
- Step 6 – checking if a given coordinate is on the board
- Step 7 – generating alphabetic and numeric notation
- Step 8 – checking places occupied on the board
- Step 9 – handling errors and exceptions
- Objective Complete – Mini Debriefing
- Adding pieces on the board
- Enforcing rules for pieces' movement
- The chessboard logic
- Making the chess functional
- Engage Thrusters
- Step 1 – updating the board for change in FEN notation
- Step 2 – binding mouse click event
- Step 3 – adding attribute to track selected piece and remaining pieces
- Step 4 – identifying square clicked
- Step 5 – getting the source and destination position
- Step 6 – collecting list of moves to highlight
- Step 7 – modifying draw_board to highlight allowed moves
- Step 8 – defining attributes to keep game statistics
- Step 9 – preshift validations
- Step 10 – actual movement of pieces
- Step 11 – Post movement updates
- Step 12 – classes to handle exceptions and errors
- Objective Complete – Mini Debriefing
- Engage Thrusters
- Adding menu and an info frame
- Mission Accomplished
- A Hotshot Challenge
- 5. Audio Player
- Mission Briefing
- Getting the audio to play
- Adding a playlist
- Adding more controls to the player
- Adding the top display console
- Looping over tracks
- Adding the contextual menu
- Adding a tooltip and finalizing our player
- Mission Accomplished
- A Hotshot Challenge
- 6. Drawing an Application
- Mission Briefing
- Developing a bare bone GUI framework
- Structuring our drawing program
- Engage Thrusters
- Step 1 – importing framework
- Step 2: building the top menu
- Step 3 – undo operation on the Canvas widget
- Step 4 – saving canvas objects
- Step 5 – creating buttons in the left tool bar
- Step 6 – adding command callback to buttons
- Step 7 – creating color palettes and color selection dialog
- Step 8 – setting color of background and foreground palette
- Step 9 – displaying x and y coordinates of mouse movement
- Objective Complete – Mini Debriefing
- Engage Thrusters
- Handling mouse events
- Drawing items on the canvas
- Engage Thrusters
- Step 1 – creating a tuple of methods
- Step 2 – add icons to our toolbar buttons
- Step 3 – keeping a tab on currently selected button
- Step 4 – code for drawing line, rectangle, and oval shapes
- Step 5 – code for drawing in continuous stroke
- Step 6 – executing code dynamically
- Step 7 – doing the actual drawing
- Objective Complete – Mini Debriefing
- Engage Thrusters
- Setting the options toolbar at the top
- Adding some more features
- Mission Accomplished
- A Hotshot Challenge
- 7. Some Fun Project Ideas
- A. Miscellaneous Tips
- Mission Briefing
- Tracing Tkinter variables
- Widget traversal
- Validating user input
- Formatting widget data
- More on fonts
- Working with Unicode characters
- Tkinter class's hierarchy
- Custom-made mixins
- Tips for code cleanup and program optimization
- Distributing the Tkinter application
- Limitations of Tkinter
- Alternatives to Tkinter
- Getting interactive help
- Tkinter in Python 3.x
- Conclusion
- B. Quick Reference Sheets
- Index
The drum machine needs your attention. As a part of your Hotshot challenge, add the following features to your drum machine:
- The current application checks if the button is green in color to decide whether the button is in the pressed state. Modify the code so that this logic is not decided based on the color of the button, but by a separate variable that keeps track of the selected buttons.
- Add a tempo scale to your drum machine, which lets the user change the tempo of the beats using a slider.
- Add volume control for each drum sample, allowing the user to change the volume individually for each drum sample.
- Add a mute button for each drum sample. If the Checkbutton is clicked for a given drum sample, the sound is not played for that row. This way, a user can stop a complete row from playing without changing the patterns in that row.
- Add a time clock to your drum machine, which displays the time elapsed since the last press of the play button.
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