tkinter_example.py

import tkinter as tk
from tkinter import messagebox
import tkinter.ttk as ttk
import nbsp_python as nbsp

window = tk.Tk()
window.title("NBioBSP Python Example")
window.geometry("365x350")

handle = nbsp.initialize_handle()
global fingerprint_hash

def open_nbsp_device():
    nbsp.open_device()
    init_button.config(state="normal")
    close_device_button.config(state="normal")
    result_label.config(text="Device opened successfully." if nbsp.is_device_open() else "Failed to open device.")

def close_nbsp_device():
    nbsp.close_device()
    result_label.config(text="Device closed successfully." if not nbsp.is_device_open() else "Failed to close device.")


def capture_fingerprint():
    global fingerprint_hash
    if not nbsp.is_device_open():
        result_label.config(text="Please open the device first.")
        return
    if not user_id_entry.get():
        result_label.config(text="Please enter a user ID.")
        return

    handle = nbsp.capture(selected_option.get(), 5000)
    fingerprint_hash = nbsp.extract_fir_text(handle)

    nbsp.add_fir_to_index_search(fingerprint_hash, user_id_var.get())

    messagebox.showinfo("Fingerprint Hash", fingerprint_hash)
    verify_button.config(state="normal")
    identify_button.config(state="normal")
    messagebox.showinfo("Capture Successful", "You can now press VERIFY. The capture has also been added to the indexsearch database.")
    result_label.config(text="Fingerprint captured successfully.")

def verify_fingerprint():
    try:
        nbsp.verify(handle)
        result_label.config(text="Valid fingerprint!")
    except RuntimeError as e:
        result_label.config(text="Error: " + str(e))


def init_index_search():
    nbsp.init_index_search()
    capture_button.config(state="normal")
    result_label.config(text="Indexsearch initialized successfully.")

def identify_from_indexsearch():
    handle = nbsp.capture("identify", 5000)
    fingerprint_hash = nbsp.extract_fir_text(handle)
    try:
        user_id = nbsp.identify_data_from_index_search(fingerprint_hash)
        result_label.config(text="Your fingerprint matches the following user ID: " + str(user_id))
    except RuntimeError as e:
        result_label.config(text="Error: " + str(e))

# --- GUI --- #

open_device_button = ttk.Button(window, text="OPEN DEVICE", command=open_nbsp_device)
open_device_button.grid(row=0, column=0, padx=10, pady=10)

close_device_button = ttk.Button(window, text="CLOSE DEVICE", state="disabled", command=close_nbsp_device)
close_device_button.grid(row=0, column=1, padx=10, pady=10)

init_button = ttk.Button(window, text="INITIALIZE INDEXSEARCH", state="disabled", command=init_index_search)
init_button.grid(row=1, column=0, padx=10, pady=10)

ttk.Separator(window, orient="horizontal").grid(row=2, column=0, columnspan=2, sticky="ew", padx=10, pady=10)

capture_button = ttk.Button(window, text="CAPTURE", state="disabled",command=capture_fingerprint)
capture_button.grid(row=3, column=0, padx=10, pady=10)

options = ["enroll", "verify", "enroll_for_verification", "enroll_for_identification"]
selected_option = tk.StringVar(value=options[0])
ttk.OptionMenu(window, selected_option, *options).grid(row=3, column=1, padx=10, pady=10)

ttk.Label(window, text="User ID:").grid(row=4, column=0, padx=10, pady=10)
user_id_var = tk.IntVar()
user_id_entry = ttk.Entry(window, textvariable=user_id_var)
user_id_entry.grid(row=4, column=1, padx=10, pady=10)

ttk.Separator(window, orient="horizontal").grid(row=7, column=0, columnspan=2, sticky="ew", padx=10, pady=10)

verify_button = ttk.Button(window, text="VERIFY AGAINST CAPTURE", state="disabled", command=verify_fingerprint)
verify_button.grid(row=6, column=0, padx=10, pady=10)

identify_button = ttk.Button(window, text="IDENTIFY FROM INDEXSEARCH", state="disabled", command=identify_from_indexsearch)
identify_button.grid(row=6, column=1, padx=10, pady=10)

result_label = ttk.Label(window, text="")
result_label.grid(row=8, column=0, columnspan=2, padx=10, pady=10)

window.mainloop()