Introduction

• Introduction to Tkinter
• What are Widgets in Tkinter?
• Hello World in Tkinter
• Create First GUI Application using Python-Tkinter
• Python GUI - tkinter Overview

Basic Widgets

• Creating a button in tkinter
• Add style to tkinter button
• Add image on a Tkinter button
• Label Widget in Tkinter
• Create LabelFrame and add widgets to it
• RadioButton in Tkinter
• Checkbutton in Tkinter
• Canvas Widget
• Create different shapes using Canvas class
• Create different type of lines using Canvas class
• Moving objects using Canvas.move() method
• Combobox Widget in tkinter
• Set the Maximum size of the Root
• Set the Minimum size of the Root
• Resizing Root in Tkinter
• Entry Widget
• Read only Entry Widget
• Text Widget
• Message Widget
• Menu widget in Tkinter
• Menubutton Widget
• SpinBox Widget
• Progressbar widget in Tkinter
• Scrollbar Widget in Tkinter
• ScrolledText Widget
• ListBox Widget
• Scrollable ListBox in Python-tkinter
• Frame Widget
• Scrollable Frames in Tkinter
• How to make a proper double scrollbar frame in Tkinter
• Scale Widget
• Hierarchical treeview Widget
• Treeview scrollbar Widget in Tkinter

Toplevel Widgets

• Toplevel Widget
• Askopenfile Dialog in Tkinter
• Asksaveasfile Dialog in Tkinter
• Askquestion Dialog in Tkinter
• MessageBox Widget
• Create a Yes/No Message Box
• Change the size of MessageBox
• Different types of MessageBox in Tkinter
• Change Icon for Tkinter MessageBox
• Choose color Dialog
• Popup Menu in Tkinter

Geometry Management

• Place() method in Tkinter
• Grid() method in Tkinter
• Get the location and total number of grids in Tkinter
• Pack() method in Tkinter
• Unmap any widget from the screen or toplevel
• PanedWindow Widget in Tkinter
• Set the dimensions of the Tkinter window
• Setting the position of TKinter labels

Binding Functions

• Binding function in Tkinter
• Binding Function with double click with Tkinter ListBox
• Right Click menu using Tkinter

Working with Images in Tkinter

• Reading Images With Python - Tkinter
• Set the titlebar icon of any tkinter/toplevel window
• Loading Images in Tkinter using PIL

Tkinter Advance

• Getting screen’s height and width using Tkinter
• How to dynamically change text of Checkbutton
• Set the focus on the desired widget
• Search String in Text
• Autocmplete ComboBox in Python-Tkinter
• Autohiding Scrollbars
• Validating Entry Widget
• Tracing Tkinter variables in Python
• Setting and retrieving values of Tkinter variable
• Adding style to the input text using ttk.Entry widget
• After method in Tkinter
• Destroy widgets in Tkinter
• Check whether the specified widget is visible or not
• Collapsible Pane in Tkinter
• Creating a multiple Selection using Tkinter
• Creating Tabbed Widget With Python-Tkinter
• Open a new Window with a button in Python-Tkinter
• Cryptography GUI using python

Applications and Projects

• Simple GUI calculator using Tkinter
• Create Table Using Tkinter
• GUI Calendar using Tkinter
• File Explorer in Python using Tkinter
• ToDo GUI Application using Tkinter
• Weight Conversion GUI using Tkinter
• Age Calculator using Tkinter
• Create a GUI Marksheet using Tkinter
• Loan calculator using Tkinter
• Create a digital clock using Tkinter
• Make Notepad using Tkinter
• Simple FLAMES game using Tkinter
• Simple registration form using Tkinter

Create different type of lines using Canvas class in Tkinter

The Canvas widget in tkinter provides the capability to draw lines in various styles. You can adjust the width, style, fill color, and even create dashed patterns.

In this tutorial, we'll demonstrate how to create different types of lines using the Canvas class in tkinter.

Drawing Different Types of Lines Using Canvas in tkinter:

1. Import Required Libraries:

import tkinter as tk

2. Initialize Main Application Window:

root = tk.Tk()
root.title("Canvas Lines Tutorial")

3. Create and Pack the Canvas Widget:

canvas = tk.Canvas(root, bg="white", width=400, height=400)
canvas.pack(pady=20)

4. Drawing Different Lines:

i. Basic Line:

The most basic type of line can be drawn with default settings:

canvas.create_line(10, 10, 200, 10)

ii. Line with Different Width:

You can set the width of a line using the width option:

canvas.create_line(10, 30, 200, 30, width=5)

iii. Line with Different Colors:

Use the fill option to change the line's color:

canvas.create_line(10, 60, 200, 60, fill="red")

iv. Dashed Line:

You can create dashed lines with the dash option:

canvas.create_line(10, 90, 200, 90, dash=(5, 2))  # 5 pixels on, 2 pixels off

v. Line with Arrowheads:

You can add arrowheads at either or both ends of a line:

canvas.create_line(10, 120, 200, 120, arrow=tk.LAST)  # Arrow at the last end of the line
canvas.create_line(10, 150, 200, 150, arrow=tk.BOTH)  # Arrows at both ends

vi. Line with Custom Arrowhead Shape:

You can also customize the shape of the arrowhead:

canvas.create_line(10, 180, 200, 180, arrow=tk.LAST, arrowshape=(16, 20, 6))

5. Mainloop to Run the Application:

root.mainloop()

Complete Code:

import tkinter as tk

root = tk.Tk()
root.title("Canvas Lines Tutorial")

canvas = tk.Canvas(root, bg="white", width=400, height=400)
canvas.pack(pady=20)

# Drawing different types of lines
canvas.create_line(10, 10, 200, 10)
canvas.create_line(10, 30, 200, 30, width=5)
canvas.create_line(10, 60, 200, 60, fill="red")
canvas.create_line(10, 90, 200, 90, dash=(5, 2))
canvas.create_line(10, 120, 200, 120, arrow=tk.LAST)
canvas.create_line(10, 150, 200, 150, arrow=tk.BOTH)
canvas.create_line(10, 180, 200, 180, arrow=tk.LAST, arrowshape=(16, 20, 6))

root.mainloop()

This code provides a demonstration of various line styles on the canvas. You can combine different options to achieve a wide range of line appearances.

1. Python Tkinter draw lines on Canvas example:

   • Description: Tkinter's Canvas widget allows you to draw lines using the create_line method.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a straight line
     canvas.create_line(50, 50, 200, 50, fill="blue")
     
     root.mainloop()
     

2. Creating straight and curved lines in Tkinter:

   • Description: You can create both straight and curved lines on the Tkinter Canvas using the create_line method.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a straight line
     canvas.create_line(50, 50, 200, 50, fill="blue")
     
     # Draw a curved line
     canvas.create_line(50, 100, 200, 150, smooth=True, fill="red")
     
     root.mainloop()
     

3. Drawing dashed and dotted lines in Tkinter:

   • Description: You can draw dashed and dotted lines on the Tkinter Canvas by setting the dash option in the create_line method.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a dashed line
     canvas.create_line(50, 50, 200, 50, dash=(4, 2), fill="blue")
     
     # Draw a dotted line
     canvas.create_line(50, 100, 200, 100, dash=(1, 1), fill="red")
     
     root.mainloop()
     

4. Python Tkinter Canvas create_line example:

   • Description: The create_line method in Tkinter's Canvas widget is used to draw lines by specifying the coordinates of the endpoints.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a line
     canvas.create_line(50, 50, 200, 50, fill="blue")
     
     root.mainloop()
     

5. Customizing line styles on Canvas in Tkinter:

   • Description: You can customize line styles on the Tkinter Canvas by setting options like width, fill, and dash in the create_line method.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Customize line styles
     canvas.create_line(50, 50, 200, 50, width=2, fill="blue", dash=(4, 2))
     canvas.create_line(50, 100, 200, 100, width=3, fill="red", dash=(1, 1))
     
     root.mainloop()
     

6. Creating arrows and connectors with Tkinter Canvas:

   • Description: Tkinter's Canvas widget allows you to create arrows and connectors using the arrow option in the create_line method.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw an arrow
     canvas.create_line(50, 50, 200, 50, arrow=tk.LAST, fill="blue")
     
     # Draw a connector
     canvas.create_line(50, 100, 200, 100, arrow=tk.BOTH, fill="red")
     
     root.mainloop()
     

7. Drawing polylines and multi-segment lines in Tkinter:

   • Description: You can draw polylines (multiple connected line segments) on the Tkinter Canvas using the create_line method with multiple coordinate pairs.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a polyline
     canvas.create_line(50, 50, 100, 100, 150, 50, fill="blue")
     
     root.mainloop()
     

8. Python Tkinter Canvas line coordinates:

   • Description: When using the create_line method, you specify the coordinates of the endpoints of the line as pairs of x and y values.
   • Code:

     import tkinter as tk
     
     root = tk.Tk()
     
     canvas = tk.Canvas(root, width=300, height=200)
     canvas.pack()
     
     # Draw a line with specified coordinates
     canvas.create_line(50, 50, 200, 50, fill="blue")
     
     root.mainloop()