GUI.py

from tkinter import *
import socket
from fileCheck import *

client = socket.socket()                # Connect to IP:Port
port = 12346
client.connect(('localhost', port))
FirstEntry = True
userName = ""

        
def pressAction(event):
    entryBox.config(state=NORMAL)
    clickAction()

def disableEntry(event):
    entryBox.config(state=DISABLED)
        
def clickAction():
    try:
        global FirstEntry
        global userName
        if FirstEntry == True: # When you send the first message
            FirstEntry = False
            userName = entryBox.get("0.0", END)[:-1]
            inDatabase = readFunction(userName)
            if inDatabase == False:
                savePreferences(userName)
        entryText = filteredMessage(entryBox.get("0.0", END))
        loadMyEntry(chatDispl, entryText)
        if not(entryText == ''):
            client.send( entryText.encode('utf-8') )          # Encode the messsage in bits and send it to server
            try:
                rawmsg = client.recv(1024)                # recieve up to 1024 bytes

                msg = rawmsg.decode('utf-8').rstrip('\r\n')      # Decode received message from bits to string
                loadOtherEntry(chatDispl, msg)
            except:
                print("Didnt receive a message")
        chatDispl.yview(END)#Scroll to the bottom of chat windows
        entryBox.delete("0.0", END)  #Erace previous message in Entry Box
    except:
        client.shutdown(1)
        print("Shutdown")

def filteredMessage(entryText):
    """
    Filter out all useless white lines at the end of a string,
    returns a new.
    """
    endFiltered = ''
    for i in range(len(entryText)-1,-1,-1):
        if entryText[i]!='\n':
            endFiltered = entryText[0:i+1]
            break
    for i in range(0,len(endFiltered), 1):
            if endFiltered[i] != "\n":
                    return endFiltered[i:]+'\n'
    return ''

def loadMyEntry(chatLog, entryText):
    if entryText != '':
        chatLog.config(state=NORMAL)
        if chatLog.index('end') != None:
            lineNumber = float(chatLog.index('end'))-1.0
            chatLog.insert(END, userName +": " + entryText)
            chatLog.tag_add(userName + ": ", lineNumber, lineNumber+((len(userName)+1)/10))
            chatLog.tag_config(userName + ": ", foreground="#FF8000", font=("Arial", 12, "bold"))
            chatLog.config(state=DISABLED)
            chatLog.yview(END)
            
def loadOtherEntry(chatLog, entryText):
    if entryText != '':
        chatLog.config(state=NORMAL)
        if chatLog.index('end') != None:
            try:
                lineNumber = float(chatLog.index('end'))-1.0
            except:
                pass
            chatLog.insert(END, "Snoo.py Snek: " + entryText+"\n")
            chatLog.tag_add("Snoo.py Snek: ", lineNumber, lineNumber+0.13)
            chatLog.tag_config("Snoo.py Snek: ", foreground="#04B404", font=("Arial", 12, "bold"))
            chatLog.config(state=DISABLED)
            chatLog.yview(END)


base = Tk()
base.title('Snoo.py Snek')
base.geometry("600x500")
base.resizable(width=FALSE, height = FALSE)

chatDispl = Text(base, bd = 0, bg = "white", height = "8", width= "50", font = "Arial")
chatDispl.insert(END, "Hi, there I'm Snoo.py Snek, What is your name?\n")
chatDispl.config(state=DISABLED)

scrollBar = Scrollbar(base, command= chatDispl.yview, cursor = "heart")
chatDispl['yscrollcommand'] = yscrollcommand=scrollBar.set

sendBtn = Button(base, font= 30, text= "Send", width = "12", height = 5, bd = 0, bg="#FFBF00", 
                 activebackground= "#FACC2E", command = clickAction)

entryBox = Text(base, bd=0, bg="white",width="29", height="5", font="Arial")
entryBox.bind("<Return>", disableEntry)
entryBox.bind("<KeyRelease-Return>", pressAction)

scrollBar.place(x=576,y=6, height=386)
chatDispl.place(x=6,y=6, height=386, width=570)
entryBox.place(x=153, y=401, height=90, width=424)
sendBtn.place(x=6, y=401, height=90)

base.mainloop()