task_window.py

import tkinter as tk
import bubble_cursor
import objects_management as om


class Application(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)  # Call tk.Frame.__init__(master)
        self.master = master  # Update the master object after tk.Frame() makes necessary changes to it
        window_width = 1500
        window_height = 800
        self.canvas = tk.Canvas(self.master, width=window_width, height=window_height)
        self.canvas.pack()
        self.canvas.bind("<ButtonPress-1>", self.mouse_left_button_press)
        self.canvas.bind("<Motion>", self.mouse_move)

        object_num = 20  # object total number
        object_radius = 20  # object radius
        self.object_manage = om.ObjectManager(self.canvas, window_width, window_height, object_num, object_radius)
        objects = self.object_manage.generate_random_targets()

        self.cursor = bubble_cursor.AreaCursor(self.canvas, objects)
        self.object_index = 0

    def mouse_left_button_press(self, event):
        print(self.object_index)  # print the index of the selected object
        self.object_manage.update_object_mouse_click(self.object_index)

    def mouse_move(self, event):
        self.cursor.update_cursor(event.x, event.y)

        self.object_index = self.cursor.get_selected_object()
        self.object_manage.update_object(self.object_index)


if __name__ == '__main__':
    master = tk.Tk()
    master.config(cursor="none")  # hid cursor in canvas
    master.resizable(0, 0)
    app = Application(master=master)
    app.mainloop()  # mainloop() tells Python to run the Tkinter event loop. This method listens for events, such as button clicks or keypresses, and blocks any code that comes after it from running until the window it's called on is closed.