I'm trying to shrink a Text widget to the size of the text inside. In fact, if you run the following example code:
import tkinter as tk
root = tk.Tk()
testText = tk.Text(master=root)
testText.insert(index="1.0", chars="short string")
testText.tag_configure(tagName="center", justify="center")
testText.tag_add("center", "1.0", tk.END)
testText.grid(row=0, column=0, sticky=(tk.N, tk.E, tk.S, tk.W))
root.mainloop()
a big Text is created, way bigger than the "short string" inside:
I'm trying to find a way to shrink the Text widget to the size of the text it contains, in order to get a window just a little larger than the text inside it.
I've tried to solve fixing the dimensions of the Text explicitly specifying width/height and then using grid_propagate(False) and using a "wrapper" Frame containing the Text and then fixing its dimensions (again) explicitly specifying width/height and then using grid_propagate(False) but nothing worked the way I would like it. I didn't manage to get the Text shriking and expanding dinamically based on the text inside.
Could someone suggest me a good way to do this?
I thought about using a label, but I have to format the text in a specific way. For example I have to format a word in bold text and the rest of the sentence in standard text. So, as I read in this question I decided to used a Text
Answer
Here is the solution:
The width and the height based on the text inside.
import tkinter as tk
from tkinter import font
def resize_text_widget(text_widget):
content = text_widget.get("1.0", "end-1c")
lines = content.split("\n")
f = font.Font(font=text_widget['font'])
max_line_length = max(len(line) for line in lines)
width_in_chars = max_line_length
height_in_lines = len(lines)
text_widget.config(width=width_in_chars, height=height_in_lines)
root = tk.Tk()
testText = tk.Text(master=root, wrap="none")
testText.insert(index="1.0", chars="short string")
testText.tag_configure("center", justify="center")
testText.tag_add("center", "1.0", tk.END)
testText.grid(row=0, column=0)
resize_text_widget(testText)
root.mainloop()
If you require multi-line text, the following approach might be better:
import tkinter as tk
root = tk.Tk()
message = tk.Message(root, text="This is a longer string that automatically wraps to fit the specified width.", width=200)
message.pack()
root.mainloop()
If content is very simple like single line text, this code might be suitable:
label = tk.Label(root, text="short string")
label.pack()