chat_appl.py

import tkinter as tk
from tkinter import ttk, scrolledtext, messagebox
import socket
import threading

class NetworkChatApp:
    def __init__(self, root):
        self.root = root
        self.root.title("UDP Chat Tool")
        self.root.geometry("800x600")  # Default size

        # Main frame
        self.main_frame = ttk.Frame(self.root, padding=10)
        self.main_frame.pack(fill=tk.BOTH, expand=True)

        # Left side - Chat area
        self.chat_frame = ttk.Frame(self.main_frame, padding=10)
        self.chat_frame.grid(row=0, column=0, sticky="nsew", padx=10, pady=10)

        ttk.Label(self.chat_frame, text="Chat Window", font=("Arial", 14, "bold")).grid(row=0, column=0, sticky="w", pady=5)
        
        self.message_display = scrolledtext.ScrolledText(self.chat_frame, wrap=tk.WORD, font=("Arial", 12))
        self.message_display.grid(row=1, column=0, sticky="nsew", padx=5, pady=5)
        self.message_display.config(state='disabled')

        # Message input
        self.input_frame = ttk.Frame(self.chat_frame)
        self.input_frame.grid(row=2, column=0, sticky="ew", pady=5)

        self.message_entry = ttk.Entry(self.input_frame, font=("Arial", 12))
        self.message_entry.grid(row=0, column=0, sticky="ew", padx=5)
        self.message_entry.bind("<Return>", self.send_message)

        self.send_btn = tk.Button(self.input_frame, text="Send", command=lambda: self.send_message(None), bg="#4CAF50", fg="white",
                                  font=("Arial", 10, "bold"), padx=10, pady=5, relief=tk.RAISED)
        self.send_btn.grid(row=0, column=1, padx=5)

        self.input_frame.columnconfigure(0, weight=1)

        # Right side - Settings & Controls
        self.right_panel = ttk.Frame(self.main_frame, padding=10)
        self.right_panel.grid(row=0, column=1, sticky="ns", padx=20, pady=10)

        ttk.Label(self.right_panel, text="UDP Settings", font=("Arial", 14, "bold")).grid(row=0, column=0, pady=10)

        ttk.Label(self.right_panel, text="IP Address:").grid(row=1, column=0, sticky="w", pady=5)
        self.ip_entry = ttk.Entry(self.right_panel, font=("Arial", 12))
        self.ip_entry.insert(0, "192.168.1.1")
        self.ip_entry.grid(row=2, column=0, pady=5)

        ttk.Label(self.right_panel, text="Port:").grid(row=3, column=0, sticky="w", pady=5)
        self.port_entry = ttk.Entry(self.right_panel, font=("Arial", 12))
        self.port_entry.insert(0, "12345")
        self.port_entry.grid(row=4, column=0, pady=5)

        self.start_btn = tk.Button(self.right_panel, text="Start Chat", command=self.initialize_udp, bg="#008CBA", fg="white",
                                   font=("Arial", 10, "bold"), padx=10, pady=5, relief=tk.RAISED)
        self.start_btn.grid(row=5, column=0, pady=10)

        # Theme toggle button
        self.theme_toggle_btn = tk.Button(self.right_panel, text="Toggle Theme", command=self.toggle_theme, bg="#f39c12", fg="white",
                                          font=("Arial", 10, "bold"), padx=10, pady=5, relief=tk.RAISED)
        self.theme_toggle_btn.grid(row=6, column=0, pady=10)

        # Zoom In/Out Buttons
        self.zoom_in_btn = tk.Button(self.right_panel, text="Zoom In", command=self.zoom_in, bg="#9b59b6", fg="white",
                                     font=("Arial", 10, "bold"), padx=10, pady=5, relief=tk.RAISED)
        self.zoom_in_btn.grid(row=7, column=0, pady=10)

        self.zoom_out_btn = tk.Button(self.right_panel, text="Zoom Out", command=self.zoom_out, bg="#e74c3c", fg="white",
                                      font=("Arial", 10, "bold"), padx=10, pady=5, relief=tk.RAISED)
        self.zoom_out_btn.grid(row=8, column=0, pady=10)

        # Status Bar
        self.status_label = ttk.Label(self.root, text="Status: Not Connected", anchor="w", font=("Arial", 10))
        self.status_label.pack(side=tk.BOTTOM, fill=tk.X)

        # Grid layout configuration
        self.main_frame.columnconfigure(0, weight=3)
        self.main_frame.columnconfigure(1, weight=1)
        self.chat_frame.columnconfigure(0, weight=1)
        self.chat_frame.rowconfigure(1, weight=1)  # Make chat window resizable

        # Initialize theme
        self.current_theme = "dark"
        self.set_theme(self.current_theme)

    def set_theme(self, theme):
        """Set the UI theme."""
        style = ttk.Style()
        if theme == "dark":
            style.configure("TFrame", background="#1E1E1E")
            style.configure("TLabel", background="#1E1E1E", foreground="white", font=("Arial", 12))
            self.message_display.config(bg="#252526", fg="white")
            self.status_label.config(background="#333", foreground="white")
        else:
            style.configure("TFrame", background="#F0F0F0")
            style.configure("TLabel", background="#F0F0F0", foreground="black", font=("Arial", 12))
            self.message_display.config(bg="#FFFFFF", fg="black")
            self.status_label.config(background="#DDD", foreground="black")

    def toggle_theme(self):
        """Toggle between light and dark themes."""
        self.current_theme = "light" if self.current_theme == "dark" else "dark"
        self.set_theme(self.current_theme)

    def zoom_in(self):
        """Maximize the window (cross-platform)."""
        self.root.attributes("-fullscreen", True)  # Works on Windows, macOS, and Linux

    def zoom_out(self):
        """Restore the window to normal size."""
        self.root.attributes("-fullscreen", False)
        self.root.geometry("800x600")  # Reset to default size

    def initialize_udp(self):
        """Mock function to initialize UDP chat."""
        self.status_label.config(text="Status: Chat Started")

    def send_message(self, event):
        """Send and display a chat message."""
        message = self.message_entry.get().strip()
        if message:
            self.message_display.config(state='normal')
            self.message_display.insert(tk.END, "You: " + message + "\n")
            self.message_display.config(state='disabled')
            self.message_entry.delete(0, tk.END)

if __name__ == "__main__":
    root = tk.Tk()
    app = NetworkChatApp(root)
    root.mainloop()