Python Return the current cursor position and the position of the last left click

Question

I want to determine the cursor position of the last left mouse click as a point and the current cursor position as a point in real coordinates. The code I have has import imports and Math imports Tkinter. I have an entire GUI, but I don’t know how to define functions to display them as a shortcut for my GUI.

class PointFrame(Frame): def __init__(self, master): Frame.__init__(self, master) self.LastClick= Label(self, text= "Last Point Clicked:") self.LastClick.pack(side= LEFT) self.CurrentPosition= Label(self, text="Cursor Point:") self.CurrentPosition.pack(side= LEFT) 

You must create the following functions.

Answer 1

Something like that:

 from tkinter import * class App(): def __init__(self): root = Tk() self.last_point = (0, 0) self.prev_var = StringVar(value='-:-') self.curr_var = StringVar(value='-:-') labels = Frame(root) labels.pack() Label(labels, text='Last Point Clicked: ').pack(side=LEFT) prev = Label(labels, textvariable=self.prev_var) prev.pack(side=LEFT) Label(labels, text='Current point: ').pack(side=LEFT) curr = Label(labels, textvariable=self.curr_var) curr.pack(side=LEFT) self.canvas = Canvas(root, background='white') self.canvas.pack() self.canvas.bind('<Button-1>', self.on_click) self.canvas.bind('<Motion>', self.on_motion) self.line = self.canvas.create_line(0, 0, 0, 0) self.curr_text = self.canvas.create_text(0, 0) root.mainloop() def on_click(self, event): # Last click in absolute coordinates self.prev_var.set('%s:%s' % self.last_point) # Current point in relative coordinates self.curr_var.set('%s:%s' % (event.x - self.last_point[0], event.y - self.last_point[1])) self.last_point = event.x, event.y def on_motion(self, event): self.canvas.coords(self.line, self.last_point[0], self.last_point[1], event.x, event.y) self.canvas.coords(self.curr_text, event.x, event.y) self.canvas.itemconfigure(self.curr_text, text="%s\n%s\n\n\n" % (event.x - self.last_point[0], event.y - self.last_point[1])) App()