Is it possible to make a Progressbar under two Buttons of "water+" and "water -", Such that when I push Button water+ the Progressbar process one step and when I push Button water- the Progressbar move a step back.
Thank you for all.
Yes, it is possible to set a Progressbar to subtract and add processes depending on the Button presses or on triggered event.
Here is an sample code.
import tkinter as tk
import tkinter.ttk as ttk
root = tk.Tk()
progressbar = ttk.Progressbar(root, length=200, maximum=10, value=5)
progressbar.grid(row=1)
process = tk.IntVar(value=5)
def add_water():
if process.get() < progressbar['maximum']:
process.set( process.get() + 1)
progressbar['value'] = process.get()
def sub_water():
if process.get() > 0:
process.set( process.get() - 1)
progressbar['value'] = process.get()
add = ttk.Button(root, text='Water +', command=add_water)
sub = ttk.Button(root, text='Water -', command=sub_water)
label = ttk.Label(root, textvariable=process)
label.grid(row=0)
add.grid(row=0, sticky='e')
sub.grid(row=0, sticky='w')
root.mainloop()
Related
take a look at this code
well it happens to just add another label for no reason
import tkinter
from tkinter import *
clicks = 1
def click_count():
global clicks
# making the label that shows how many idk you have
label = Label(frame, text="you have " + str(clicks), font=(('Courrier'), 32))
label.pack()
clicks += 1
label.pack()
#generating the window
root = tkinter.Tk()
root.geometry('500x500')
#making the expandable frame
frame = Frame(root)
frame.pack(expand=YES)
#making the button
button = Button(frame, text= "click", font=(('Courrier'), 32), command=click_count)
button.pack()
root.mainloop()
and then i tried this
and i also tried to remove the label.pack at the end
but it still does the same thing which is adding another label
import tkinter
from tkinter import *
clicks = 1
def click_count():
global clicks
# making the label that shows how many idk you have
label = Label(frame, text="you have " + str(clicks), font=(('Courrier'), 32))
label.pack()
label.destroy()
clicks += 1
label.pack()
#generating the window
root = tkinter.Tk()
root.geometry('500x500')
#making the expandable frame
frame = Frame(root)
frame.pack(expand=YES)
#making the button
button = Button(frame, text= "click", font=(('Courrier'), 32), command=click_count)
button.pack()
root.mainloop()
i was expecting it to add a nmber to the label but it just shows another label
It does not add a Label for no reason. It adds the label because that's what your function tells it to do. Each time you click the button, the function is executed that creates and packs a new Label.
What you should do is create the label at the onset and link it to a variable. Then, you can change the value of this variable in the function.
Also, you don't have to import tkinter twice and it's sensible to update the clicker first and then display the result instead of showing the last value it had. Your approach works in such a small program but the value of clicks will always be one higher than displayed. So, you may get into problems when you use the value.
from tkinter import *
def click_count():
global clicks
clicks += 1
click_counter.set("you have " + str(clicks))
#Initiate root
root = Tk()
root.geometry('500x500')
#Set initial values for click counter
clicks = 0
click_counter = StringVar()
click_counter.set("you have 0")
#making the expandable frame
frame = Frame(root)
frame.pack(expand=YES)
# making the label that shows how many idk you have
label = Label(frame, textvariable=click_counter, font=(('Courrier'), 32)) ## The label gets updated, whenever the value of click_counter changes.
label.pack()
#making the button
button = Button(frame, text= "click", font=(('Courrier'), 32), command=click_count)
button.pack()
root.mainloop()
I've got a program that does some simple webscraping. I'm working on giving it to my coworkers to use, but they are unfamiliar with code so I'd like to make a GUI. I've started using tkinter, and I'm currently working on making a progress bar showing where the program is at (it can take up to a couple hours to run). My problem is that I can't seem to get the progress bar to update, and all the online sources use Tkinter, which is an old version. Here is my code:
I've tried updating progressBar['value'] to whatever number I want, but that hasn't been working.
from tkinter import *
from tkinter import ttk
import time
def clicked(progressBar): # runs a couple functions and updates the progress bar when the button is clicked
num = 0
for item in range(5):
# functions go here
num += 10
progressBar['value'] = num
time.sleep(2)
window = Tk()
window.title("Welcome to my app")
window.geometry('600x400')
progressBar = ttk.Progressbar(window, orient='horizontal', length=300, mode='determinate', maximum=100, value=0)
progressBar.grid(columnspan=3, row=2, sticky=(W, E))
btn = Button(window, text="Click me!", command=clicked(progressBar))
btn.grid(column=1, row=1)
window.mainloop()
The tkinter window doesn't open up until 10 seconds after I run the program, and it has the progress bar already at 50% full. I'd like for the bar to slowly increment up, AFTER the button has been clicked. Any advice would be helpful! Thank you!
There are two problems with the code:
command=clicked(progressBar) indeed calls the function promptly.So simply use command=clicked. There is no need to pass progressBar as the argument since the function gets it from global scope.
while the function clicked() is running, GUI freezes. After 5*2sec, progressBar updates to 5*10 abruptly. To update the widgets in a loop, use update_idletastk method:
import tkinter as tk
from tkinter import ttk
import time
def clicked():
num = 0
for item in range(5):
num += 10
progressBar['value'] = num
window.update_idletasks()
time.sleep(2)
window = tk.Tk()
progressBar = ttk.Progressbar(window, orient='horizontal', length=300, mode='determinate', maximum=100, value=0)
progressBar.grid(columnspan=3, row=2, sticky=(tk.W, tk.E))
btn = tk.Button(window, text="Click me!", command=clicked)
btn.grid(column=1, row=1)
window.mainloop()
This is my code
janela_barra=Toplevel()
janela_barra.title("Processando...")
janela_barra["bg"]="light grey"
janela_barra.minsize(width=400, height=80)
janela_barra.maxsize(width=400, height=80)
comprimento = janela_barra.winfo_screenwidth()
altura = janela_barra.winfo_screenheight()
x = (comprimento/2)-(400/2)
y = (altura/2)-(80/2)
janela_barra.geometry("400x80+%d+%d" % (x, y))
janela_barra.iconbitmap('icon6.ico')
pb = ttk.Progressbar(janela_barra, orient=HORIZONTAL, length=200, mode='determinate')
pb.grid(column=0,row=0)
pb["value"]=0
pb["maximum"]=100
and then there is this inside a for:
for i in range(0,tamanho):
pb["value"]=i
pb.update()
where tamanho is the number of iterations of a for(420 right now), but the thing is, it only opens a windows and then closes, i can't see the progressbar actually function, no matter how much i increase tamanho
Just add sleep (from module time) in your loop, you will see the progression. Here is an example:
from tkinter import Tk, Button, Toplevel
from tkinter import ttk
from time import sleep
root = Tk()
def fct_run_for():
top=Toplevel(root)
top.title("Progression")
pb = ttk.Progressbar(top, orient="horizontal", length=200, mode='determinate')
pb.grid(column=0,row=0)
pb["value"]=0
pb["maximum"]=100
for i in range(100):
pb["value"] += 1
pb.update()
sleep(0.1)
Button(root, text="Run", command=fct_run_for).pack()
root.mainloop()
What is the easy method to update Tkinter progress bar in a loop?
I need a solution without much mess, so I can easily implement it in my script, since it's already pretty complicated for me.
Let's say the code is:
from Tkinter import *
import ttk
root = Tk()
root.geometry('{}x{}'.format(400, 100))
theLabel = Label(root, text="Sample text to show")
theLabel.pack()
status = Label(root, text="Status bar:", bd=1, relief=SUNKEN, anchor=W)
status.pack(side=BOTTOM, fill=X)
root.mainloop()
def loop_function():
k = 1
while k<30:
### some work to be done
k = k + 1
### here should be progress bar update on the end of the loop
### "Progress: current value of k =" + str(k)
# Begining of a program
loop_function()
Here's a quick example of continuously updating a ttk progressbar. You probably don't want to put sleep in a GUI. This is just to slow the updating down so you can see it change.
from Tkinter import *
import ttk
import time
MAX = 30
root = Tk()
root.geometry('{}x{}'.format(400, 100))
progress_var = DoubleVar() #here you have ints but when calc. %'s usually floats
theLabel = Label(root, text="Sample text to show")
theLabel.pack()
progressbar = ttk.Progressbar(root, variable=progress_var, maximum=MAX)
progressbar.pack(fill=X, expand=1)
def loop_function():
k = 0
while k <= MAX:
### some work to be done
progress_var.set(k)
k += 1
time.sleep(0.02)
root.update_idletasks()
root.after(100, loop_function)
loop_function()
root.mainloop()
If I created Tkinter window with some text that filled the whole window and now wanted to replace the window with a new text, is there a way to refresh the window?
For Example:
a= 100
win= Tk()
win.geometry("500x300")
while a > 0:
if a%2 == 0:
lbl = Label (win, bg = "purple")
lbl.pack()
else:
lbl = Label (win, bg = "blue")
lbl.pack()
a= x-1
The problem with this code is that the Tkinter window does not refresh and just provides the end result instead of showing the windows changing colors.
Thanks for the help!
That is not the way to change UI states, because even if you refreshed the window it would be so quick you won't notice, instead change the state, wait some time and change the state again e.g. here I show how to animate color
from Tkinter import *
index = 0
def changeColor():
global index
if index%2==0:
label.configure(bg = "purple")
else:
label.configure(bg = "blue")
index+=1
label.after(1000, changeColor)
root = Tk()
mainContainer = Frame(root)
label = Label(mainContainer, text="")
label.configure(text="msg will change every sec")
label.pack(side=LEFT, ipadx=5, ipady=5)
mainContainer.pack()
label.after(1000, changeColor)
root.title("Timed event")
root.mainloop()
This Is How I Do To Update Data From Sql Server in tkinter GUI python3
from tkinter import *
import os
window=Tk()
window.geometry('300x300')
def update():
window.destroy()
os.system('test.py')
Button(window,text="Refresh",command=update)
window.mainloop()