Python tkinter LabelFrame

Understanding LableFrame

import tkinter as tk

my_w = tk.Tk()
my_w.geometry("400x200")  # Size of the window 
my_w.title("www.plus2net.com")  # Adding a title
font1=('Times',14,'normal')

lf=tk.LabelFrame(my_w,text='Your Details ...',
	font=font1,bg='lightgreen')
lf.grid(row=0,column=0,padx=70,pady=35)

l1=tk.Label(lf,text='First Name')
l1.grid(row=0,column=1,padx=2,pady=10)

e1=tk.Entry(lf,width=20)
e1.grid(row=0,column=2,padx=5)

l2=tk.Label(lf,text='Last Name')
l2.grid(row=1,column=1,padx=2,pady=10)

e2=tk.Entry(lf,width=20)
e2.grid(row=1,column=2,padx=5)

my_w.mainloop()  # Keep the window open

Config options for LabelFrame

Example

lf=tk.LabelFrame(my_w,text='Your Details ...',font=font1,
bg='lightgreen', highlightbackground='red',highlightcolor='yellow',
highlightthickness=10,cursor='circle',
labelanchor='sw')

Example: Using LabelFrame with Widgets Inside

One way to enhance the use of a `LabelFrame` is by grouping related widgets like `Entry`, `Label`, `Button` together to create more interactive forms or control panels.

import tkinter as tk

my_w = tk.Tk() # Main window 
my_w.geometry("400x300") # with and height of the window 

# Create a LabelFrame
lf = tk.LabelFrame(my_w, text="User Details", 
		font=('Arial', 14), bg='lightgray', padx=10, pady=10)
lf.pack(padx=10, pady=10)

# Add widgets inside LabelFrame
tk.Label(lf, text="First Name").grid(row=0, column=0, padx=5, pady=5)
tk.Entry(lf, width=20).grid(row=0, column=1, padx=5, pady=5)

tk.Label(lf, text="Last Name").grid(row=1, column=0, padx=5, pady=5)
tk.Entry(lf, width=20).grid(row=1, column=1, padx=5, pady=5)

tk.Button(lf, text="Submit").grid(row=2, column=1, padx=5, pady=10)

my_w.mainloop()

Dynamic LabelFrame with Expand Option

By using the `expand` option, we can make the `LabelFrame` responsive to the window resizing. This is useful for applications where you want the grouped widgets to adjust to screen size dynamically.

import tkinter as tk

my_w = tk.Tk() # Main window 
my_w.geometry("400x300") # width and height of the window

# Creating a LabelFrame with expand option
lf = tk.LabelFrame(my_w, text="User Details", 
		font=('Arial', 14), bg='lightblue', padx=10, pady=10)
lf.pack(fill=tk.BOTH, expand=True, padx=10, pady=10)

# Adding widgets inside LabelFrame
tk.Label(lf, text="Username").pack(padx=5, pady=5)
tk.Entry(lf, width=30).pack(padx=5, pady=5)

tk.Label(lf, text="Password").pack(padx=5, pady=5)
tk.Entry(lf, width=30, show="*").pack(padx=5, pady=5)

tk.Button(lf, text="Login").pack(pady=10)

my_w.mainloop()

Use Case: Nested LabelFrames

In more complex GUIs, you can use nested `LabelFrame`s to create hierarchical structures for better organization. For instance, creating separate sections for user details and preferences inside a main frame.

import tkinter as tk

my_w = tk.Tk() # Main window 
my_w.geometry("400x400") # width and height of the window

# Main LabelFrame
main_lf = tk.LabelFrame(my_w, text="Main Settings", 
		font=('Arial', 14), bg='lightgreen', padx=10, pady=10)
main_lf.pack(fill=tk.BOTH, expand=True, padx=10, pady=10)

# Nested LabelFrame 1 for User Info
user_lf = tk.LabelFrame(main_lf, text="User Information", padx=10, pady=10)
user_lf.pack(fill=tk.X, padx=5, pady=5)

tk.Label(user_lf, text="First Name").grid(row=0, column=0, padx=5, pady=5)
tk.Entry(user_lf).grid(row=0, column=1, padx=5, pady=5)

tk.Label(user_lf, text="Last Name").grid(row=1, column=0, padx=5, pady=5)
tk.Entry(user_lf).grid(row=1, column=1, padx=5, pady=5)

# Nested LabelFrame 2 for Preferences
pref_lf = tk.LabelFrame(main_lf, text="Preferences", padx=10, pady=10)
pref_lf.pack(fill=tk.X, padx=5, pady=5)

tk.Checkbutton(pref_lf, text="Enable Notifications").pack(anchor=tk.W)
tk.Checkbutton(pref_lf, text="Enable Dark Mode").pack(anchor=tk.W)

my_w.mainloop()

Conclusion

The Tkinter LabelFrame widget is a powerful tool for grouping related widgets within a labeled frame, making our GUI more structured and user-friendly. By exploring features like nesting, dynamic resizing, and padding, we can enhance the functionality and aesthetics of your application. Understanding how to utilize LabelFrame effectively helps us create organized and responsive interfaces in our Python Tkinter projects, improving both usability and design.