Building a drawing program with Python and Tkinter
Write a Python program that builds a simple drawing program with Tkinter and allows users to draw shapes (e.g., rectangles) on the Canvas.
Sample Solution:
Python Code:
Explanation:
In the exercise above -
- Import the Tkinter library (tkinter).
- Create a DrawingApp class that manages the drawing program.
- The "start_draw()" and "stop_draw()" methods draw rectangles when the user clicks and releases the left mouse button.
- The "draw_rectangle()" method is called when the "Draw Rectangle" button is pressed. This allows the user to draw rectangles by clicking and dragging.
- Use the "<ButtonPress-1>" and "<ButtonRelease-1>" events to start and stop drawing actions.
- The drawn rectangles are stored in the self.rectangles list.
- The program sets up a basic Tkinter window with a canvas and a "button" to draw rectangles.
- The main event loop, root.mainloop(), starts the Tkinter application.
Output:
Flowchart:
Python Code Editor:
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