Create A Paint Application Using Python

Hi everyone👋 , In this article, you will learn how you can create a paint application in python using the Tkinter module we will be also using the pillow module for placing images on the Tkinter frame. You can refer to my YouTube video to see a working tutorial for better understanding and a step-by-step guide of the same.

1. Importing The Required Modules

from tkinter import *
from tkinter.colorchooser import askcolor
from PIL import ImageTk, Image

2. Creating GUI

You can use Proxlight Designer for creating beautiful GUI's. I have already created lots of videos on this topic. So, I am skipping this part so that we can get into the main topic.

Here is the code for the GUI,

class Paint(object):

    DEFAULT_PEN_SIZE = 5.0
    DEFAULT_COLOR = 'black'

    def __init__(self):
        self.root = Tk()
        self.root.title('Paint')
        self.root.geometry('500x300')
        self.root.maxsize(500,300)
        self.root.minsize(500,300)

        self.paint_tools = Frame(self.root,width=100,height=300,relief=RIDGE,borderwidth=2)
        self.paint_tools.place(x=0,y=0)

        self.pen_logo = ImageTk.PhotoImage(Image.open('pen.png'))
        self.p = Label(self.paint_tools, text="pen",borderwidth=0,font=('verdana',10,'bold'))
        self.p.place(x=5,y=11)
        self.pen_button = Button(self.paint_tools,padx=6,image=self.pen_logo,borderwidth=2,command=self.use_pen)
        self.pen_button.place(x=60,y=10)

        self.brush_logo = ImageTk.PhotoImage(Image.open('brush.png'))
        self.b = Label(self.paint_tools,borderwidth=0,text='brush',font=('verdana',10,'bold'))
        self.b.place(x=5,y=40)
        self.brush_button = Button(self.paint_tools,image = self.brush_logo,borderwidth=2,command=self.use_brush) 
        self.brush_button.place(x=60,y=40)

        self.color_logo = ImageTk.PhotoImage(Image.open('color.png'))
        self.cl = Label(self.paint_tools, text='color',font=('verdana',10,'bold'))
        self.cl.place(x=5,y=70)
        self.color_button = Button(self.paint_tools,image = self.color_logo,borderwidth=2,command=self.choose_color)
        self.color_button.place(x=60,y=70)

        self.eraser_logo = ImageTk.PhotoImage(Image.open('eraser.png'))
        self.e = Label(self.paint_tools, text='eraser',font=('verdana',10,'bold'))
        self.e.place(x=5,y=100)
        self.eraser_button = Button(self.paint_tools,image = self.eraser_logo,borderwidth=2,command=self.use_eraser)
        self.eraser_button.place(x=60,y=100)

        self.pen_size = Label(self.paint_tools,text="Pen Size",font=('verdana',10,'bold'))
        self.pen_size.place(x=15,y=250)
        self.choose_size_button = Scale(self.paint_tools, from_=1, to=10, orient=VERTICAL)
        self.choose_size_button.place(x=20,y=150)




        self.c = Canvas(self.root, bg='white', width=600, height=600,relief=RIDGE,borderwidth=0)
        self.c.place(x=100,y=0)

        self.setup()
        self.root.mainloop()

In the above code, we have set the DEFAULT_PEN_SIZE to 5.0 which you can change according to your need.

3. Setting Up The Canvas And Paint Tools

    def use_pen(self):
        self.activate_button(self.pen_button)

    def use_brush(self):
        self.activate_button(self.brush_button)

    def choose_color(self):
        self.eraser_on = False
        self.color = askcolor(color=self.color)[1]

    def use_eraser(self):
        self.activate_button(self.eraser_button, eraser_mode=True)

    def activate_button(self, some_button, eraser_mode=False):
        self.active_button.config(relief=RAISED)
        some_button.config(relief=SUNKEN)
        self.active_button = some_button
        self.eraser_on = eraser_mode

    def paint(self, event):
        self.line_width = self.choose_size_button.get()
        paint_color = 'white' if self.eraser_on else self.color
        if self.old_x and self.old_y:
            self.c.create_line(self.old_x, self.old_y, event.x, event.y,
                               width=self.line_width, fill=paint_color,
                               capstyle=ROUND, smooth=TRUE, splinesteps=36)
        self.old_x = event.x
        self.old_y = event.y

    def reset(self, event):
        self.old_x, self.old_y = None, None


if __name__ == '__main__':
    Paint()

Alright, guys! I hope this article was helpful for you if it is the leave your comments below. I will meet you in another article until then KEEP CODING🤗.