how can i get rid of jumping while moving window on the button?

Question

When i try to drag window with buttons, its jumping to the side of window. here is part of my code:

import webbrowser
import tkinter as tk
import tkinter.font as tkFont

class WindowDraggable():

    def __init__(self, label):
        self.label = label
        label.bind('<ButtonPress-1>', self.StartMove)
        label.bind('<ButtonRelease-1>', self.StopMove)
        label.bind('<B1-Motion>', self.OnMotion)

    def StartMove(self, event):
        self.x = event.x
        self.y = event.y

    def StopMove(self, event):
        self.x = None
        self.y = None

    def OnMotion(self,event):
        x = (event.x_root - self.x - self.label.winfo_rootx() + self.label.winfo_rootx())
        y = (event.y_root - self.y - self.label.winfo_rooty() + self.label.winfo_rooty())
        root.geometry("+%s+%s" % (x, y))

How can i attach my full code here, because it says that my question is mostly code?

Stackoverflow is telling you that your question is mostly code because it wants you to explain the problem in detail and create a [mre]. Also the code you have given works properly and smoothly on my computer (Ubuntu). What OS are you using? — TheLizzard, Jan 13 '23 at 11:22
i mean like, when you drag window with any button cursor is jumping to the body of window — l4nd3r, Jan 13 '23 at 11:25

score 1 · Accepted Answer · answered Jan 13 '23 at 11:47

Fixed the class:

class WindowDraggable:
    def __init__(self, window):
        self.window.bind("<Button-1>", self.start_move)
        self.window.bind("<B1-Motion>", self.on_motion)

    def start_move(self, event):
        self.offsetx = self.window.winfo_pointerx() - self.window.winfo_rootx()
        self.offsety = self.window.winfo_pointery() - self.window.winfo_rooty()

    def on_motion(self,event):
        x = self.window.winfo_pointerx() - self.offsetx
        y = self.window.winfo_pointery() - self.offsety
        self.window.geometry(f"+{x}+{y}")

I store the x and y offsets of the mouse with respect to the window's top left corner. Then I use the offset to calculate the new x and y coords of the window. For more info look here (the second piece of code is the one you should look at).

how can i get rid of jumping while moving window on the button?

1 Answers1