How can I scale my whole page with the size of the window?

Question

This is the code that I am using to learn:

import tkinter as tk


root = tk.Tk()


all = tk.Label(root)
welcome = tk.Label(all, text="Welcome", font=("Verdana", 50), anchor="center")
welcome.grid(row=0, column=0, padx=10, pady=10)
welcome2 = tk.Label(all, text="To my software", font=("Verdana", 30), anchor="center")
welcome2.grid(row=1, column=0, padx=10, pady=10)
start = tk.Button(all, text="Start", width=15, height=1, font=("Verdana", 12))
start.grid(row=2, column=0, padx=10, pady=10)
all.place(relx=0.5, rely=0.5, anchor=tk.CENTER)


root.mainloop()

How can I make the size of this all scale up and down dependent on the size of the tkinter window?

This differs from TkInter Label Change Font Size by Text Length because I would like to also scale the Button and the Entry boxes that are also in the parent "all" label. Sort of like zooming in and out of it all.

Answer 1

From what I have found, the easiest way to do this would be to make it look good on one resolution and then have a function scale the font relative to the resolution. Like this:

import tkinter as tk


root = tk.Tk()

def new_size(size):
    change = root.winfo_screenwidth()/ 1920
    print(change)
    return int(size * change)


main = tk.Frame(root)
welcome = tk.Label(main, text="Welcome", font=("Verdana", new_size(50)), anchor="center")
welcome.grid(row=0, column=0, padx=10, pady=10)
welcome2 = tk.Label(main, text="To my software", font=("Verdana", new_size(30)), anchor="center")
welcome2.grid(row=1, column=0, padx=10, pady=10)
start = tk.Button(main, text="Start", width=15, height=1, font=("Verdana", new_size(12)))
start.grid(row=2, column=0, padx=10, pady=10)
main.place(relx=0.5, rely=0.5, anchor=tk.CENTER)

root.attributes("-fullscreen", True)
root.mainloop()