I am writing a program in python in which I want the Text widget in tkinter to have a scrollbar .
this is a part of my code -
import tkinter as tk
import tkinter.font as tkfont
window = tk.Tk()
display_text = "START\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nEND"
font_1 = tkfont.Font(family='Helvetica', size=22, weight='bold')
my_label_1 = tk.Text(window, wrap=tk.WORD, bd=0, fg="white", bg="black", font=font_1, width=76, height=21,)
_scrollbar = tk.Scrollbar(window, command=my_label_1.yview)
my_label_1.configure(yscrollcommand=_scrollbar.set)
my_label_1.tag_configure("center", justify='center')
my_label_1.insert(1.0, display_text)
_scrollbar.pack(side=tk.RIGHT, ipadx=3, ipady=500, pady=(0, 48))
my_label_1.pack()
window.mainloop()
But I have 500 strings which I import from a csv file, when I put the strings in this code the strings go in disply_text variable, this works fine.
But for some of those strings the text widget is big enough and the scrollbar is not needed as the text widget is not scrollable for those. but the scrollbar still shows up it is disabled though but I don't want it to be there.
I know pack_forget() or grid_forget() can do this job, But Then what parameter should I put so I know that this iteration of text is not scrollable on the Text widget.
And my window is of fixed size i.e. window.resizable(False, False).
Related
I've made a GUI using Tkinter. For the time being, I set the geometry to '962x652' and made it so the user can't resize it by using .resizable(0, 0). I'm now looking for a way to make it so when the GUI is resized, all the elements change size as well along side it, preferably with the aspect ratio locked.
Is there a way to achieve this whilst making it so only the element change size visibly without changing actually changing size? For example, if my GUI contains a scrolledtext box, if the user was to resize the GUI, the scrolledtext will also increase in size, but so will the text and each line of text in it will stay in the same line. I hope that makes sense.
I've add some code down below to show what I'm working with. This should have a similar effect to what I currently have:
import tkinter as tk
from tkinter import *
from tkinter import scrolledtext
TrialGUI = Tk()
TrialGUI.title('Resize GUI')
TrialGUI.geometry('962x652+0+0')
#Remove the following so you can resize the GUI
TrialGUI.resizable(0, 0)
#These are the two frames. I've changed their colour so they are visible when they are resized.
ABC1b = Frame(TrialGUI, bg='lightpink', bd=20, width=900, height=600)
ABC1b.grid(row=0, column=0)
ABC2 = Frame(TrialGUI, bg='lightblue', bd=20, width=452, height=600)
ABC2.grid(row=0, column=1)
#This is the text box
txtQuestion = scrolledtext.ScrolledText(ABC1b, wrap=tk.WORD, width=42, height=10, font=(14))
txtQuestion.grid(row=0, column=0, columnspan=4, pady=3)
#This inserts text into it. I made it insert which line the text should be in so it is easier to check if it is still in the same line when it is resized.
txtQuestion.insert(tk.INSERT, 'This should be in the first line.----------------------------------- This should be in the second line.------------------------------ This should be in the third line.----------------------------------')
TrialGUI.mainloop()
If anyone decides to play around with this code, remember to remove TrialGUI.resizable(0, 0) so it can be resized.
So I am actually writing a simple GUI program which makes use of ScrolledText widget from tkinter.scrolledtext module.
The problem is this ScrolledText widget seems to take up the complete space available in the parent window. It disallows me from putting in any other widget in the same parent window. I have tried using both grid and pack GeoManagers (i know place isn't very useful in all cases), but the other widgets won't show up (neither above the scrolledtext widget nor below it).
HERE IS THE CODE--
import tkinter as tk
import tkinter.scrolledtext as sct
win2 = tk.Tk()
win2.geometry('1150x680')
win2.wm_geometry('+80+20')
txtbox = sct.ScrolledText(win2, width=500, height=350, bg='#fff', fg='#00f')
txtbox.grid(row=0, column=0)
txt = '<ABOUT 60 Lines TEXT HERE>'
txtbox.insert(1.0, txt)
txtbox.configure(state=tk.DISABLED)
tk.Button(win2, text='Got It', command=win2.destroy).grid(row=1, column=0)
This code is actually a part of a static method (i don't think makes a difference). When this is run the only thing visible on the screen is the scrolledtext widget with those 60 lines (i have tried it with 2 lines as well - still doesn't work).
The same happens when using pack().
To my surprise the only thing i could find in documentation is this::
ScrolledText Documentation
I don't know what I am missing here so please suggest me a way around this.
Thanks You :)
Solution with grid
The problem is the configuration of the grid: by default, the grid cells expand to fit the content. In your case the text widget is so big that the button in the row below is out of the screen. To fix that, you need to configure the first row and column to stretch with the GUI:
win2.rowconfigure(0, weight=1)
win2.columnconfigure(0, weight=1)
and make the text widget fill the cell, using the sticky option:
txtbox.grid(row=0, column=0, sticky='ewns')
This way the text widget will adapt to the window size and not the other way around.
Full code:
import tkinter as tk
import tkinter.scrolledtext as sct
win2 = tk.Tk()
win2.geometry('1150x680')
win2.wm_geometry('+80+20')
win2.rowconfigure(0, weight=1)
win2.columnconfigure(0, weight=1)
txtbox = sct.ScrolledText(win2, width=500, height=350, bg='#fff', fg='#00f')
txtbox.grid(row=0, column=0, sticky='ewns')
txt = '<ABOUT 60 Lines TEXT HERE>'
txtbox.insert(1.0, txt)
txtbox.configure(state=tk.DISABLED)
tk.Button(win2, text='Got It', command=win2.destroy).grid(row=1, column=0)
Alternative method, using pack
You can use pack with the options fill='both' and expand=True to achieve the same result as with grid. In this case, the additional trick is to pack the button first to ensure that it has enough space to show in the window. Code:
import tkinter as tk
import tkinter.scrolledtext as sct
win2 = tk.Tk()
win2.geometry('1150x680')
win2.wm_geometry('+80+20')
tk.Button(win2, text='Got It', command=win2.destroy).pack(side='bottom')
txtbox = sct.ScrolledText(win2, width=500, height=350, bg='#fff', fg='#00f')
txtbox.pack(fill='both', expand=True)
txt = '<ABOUT 60 Lines TEXT HERE>'
txtbox.insert(1.0, txt)
txtbox.configure(state=tk.DISABLED)
I'm searching for a way to put one element of Tkinter on top of the others in Python.
In the example below, what I tried to do is to put the yellow label on top of the white one - so when we change the size of the window the first label that will disappear is the white one, and only when its no longer visible the yellow one will start to shrink.
How can I realize this idea? Thanks in advance! (;
The code:
import tkinter as tk
root = tk.Tk()
root.config(background='black')
regularlabel = tk.Label(root, width=20, height=10, text='label')
regularlabel.pack()
bottomlabel = tk.Label(root, text='bottom label', bg='yellow')
bottomlabel.pack(side='bottom', fill='both')
root.mainloop()
Tkinter will shrink widgets in the reverse order of which they were added. Pack the bottom window first to solve your problem.
Since the layout of widgets tends to be changed more than the actual widgets during development, I find the code easier to understand and easier to maintain when layout is separate from widget creation. In the following example I've grouped the two layout statements together.
import tkinter as tk
root = tk.Tk()
root.config(background='black')
regularlabel = tk.Label(root, width=20, height=10, text='label')
bottomlabel = tk.Label(root, text='bottom label', bg='yellow')
bottomlabel.pack(side='bottom', fill='both')
regularlabel.pack()
root.mainloop()
By placing a Text widget in my GUI
from Tkinter import Text
textBox=Text(root, height=20, width=10)
textBox.pack()
whenever I write something in that box, I cant return the focus back to any other place in the window. I have some keys bounded to event, which stop working after I wrote in the Text widget.
Is there a way of redirecting the focus to another place after writing text?
Please press Return-Key to give focus back to window
import tkinter as tk
def onReturn(*event):
root.focus_set()
root = tk.Tk()
textBox= tk.Text(root, height=20, width=10)
textBox.pack()
root.bind("<Return>", onReturn)
root.mainloop()
Is there a way of redirecting the focus to another place after writing text?
Every widget has a method named focus_set which can be used to move keyboard focus to that widget.
For example, to set the focus to the root window you would do:
root.focus_set()
from Tkinter import *
root = Tk()
root.title("Whois Tool")
text = Text()
text1 = Text()
text1.config(width=15, height=1)
text1.pack()
def button1():
text.insert(END, text1)
b = Button(root, text="Enter", width=10, height=2, command=button1)
b.pack()
scrollbar = Scrollbar(root)
scrollbar.pack(side=RIGHT, fill=Y)
text.config(width=60, height=15)
text.pack(side=LEFT, fill=Y)
scrollbar.config(command=text.yview)
text.config(yscrollcommand=scrollbar.set)
root.mainloop()
How can I add the data from a text widget to another text widget?
For example, I'm trying to insert the data in text1 to text, but it is not working.
You are trying to insert a Text reference at the end of another Text widget (does not make much sense), but what you actually want to do is to copy the contents of a Text widget to another:
def button1():
text.insert(INSERT, text1.get("1.0", "end-1c"))
Not an intuitive way to do it in my opinion. "1.0" means line 1, column 0. Yes, the lines are 1-indexed and the columns are 0-indexed.
Note that you may not want to import the entire Tkinter package, using from Tkinter import *. It will likely lead to confusion down the road. I would recommend using:
import Tkinter
text = Tkinter.Text()
Another option is:
import Tkinter as tk
text = tk.Text()
You can choose a short name (like "tk") of your choice. Regardless, you should stick to one import mechanism for the library.