# Example usage
app = App("username")
app.mainloop()
#import tkinter as tk
import ttkbootstrap as ttk
from tkinter import messagebox
from ui import App
def start_login_window():
window = ttk.Window(themename='lumen')
window.geometry('300x180')
window.title('Login')
def login():
username = inp_username.get().strip()
if username: # Add password conditions as needed
window.withdraw()
app = App(username)
app.mainloop()
window.destroy()
else:
messagebox.showerror("Login Failed", "Incorrect username or password")
lbl_username = ttk.Label(window, text='Reflex Username:')
lbl_username.pack(pady=(20, 10))
inp_username = ttk.Entry(window)
inp_username.pack()
btn_login = ttk.Button(window, text='Login', command=login)
btn_login.pack(pady=20)
window.mainloop()
#In App class display image functions:
class App(ttk.Window):
def __init__(self, username, theme='lumen'):
super().__init__(themename=theme)
self.username = username
self.title('Quality Control Application')
self.scan_state = 1 # Initialize scan_state at the beginning of the App initialization
self.scanned_data = {'SKU': None, 'GRADE': None, 'HD': None} # Ensure scanned data is also initialized
self.photo = None # Image storage
self.geometry('1700x520')
# Set window transparency: 0.0 (fully transparent) to 1.0 (fully opaque)
self.attributes('-alpha', 0.9) # Example: 90% opacity
self.db = DatabaseManager(self.username)
self.scan = ScannerWorker()
self.scan.set_on_scan_callback(self.handle_scan)
self.scan.set_display_message_callback(self.display_message)
self.scan.start()
self.initialize_ui()
self.protocol("WM_DELETE_WINDOW", self.on_close)
def initialize_ui(self):
style = ttk.Style()
# Use a style for Treeview heading
style.configure('Treeview.Heading', font=('Helvetica', 10, 'bold')) # Bold font for Treeview headers
control_frame = ttk.Frame(self)
control_frame.grid(row=0, column=0, sticky="nsew", padx=10, pady=10)
image_frame = ttk.Frame(self)
image_frame.grid(row=0, column=1, sticky="nsew", padx=10, pady=10)
self.grid_columnconfigure(0, weight=1)
self.grid_columnconfigure(1, weight=3)
self.configure_treeview(control_frame)
self.configure_text_log(control_frame)
self.configure_image_display(image_frame)
# Add input field and update button
self.create_input_and_button(control_frame)
self.display_message("Welcome to the QC application! Please start by scanning the SKU.", color='green')
# Code to troubleshoot image not showing after login
def load_and_display_image(self, scu):
result = self.db.get_model_link_line_category(scu)
if result:
link = result[0].strip()
if link:
self.display_image(link)
else:
self.display_message_img("No image available for this SKU.")
else:
self.display_message_img("No data or image available for this SKU.")
def display_image(self, image_url):
try:
response = requests.get(image_url, verify=False) # For demonstration; disable SSL verification
if response.status_code == 200:
img_data = response.content
img = Image.open(BytesIO(img_data))
img = img.resize((360, 480)) # Resize the image if necessary
self.photo = ImageTk.PhotoImage(img) # Store the image in a PhotoImage object
# Configure the image label with the new PhotoImage object
self.image_label.config(image=self.photo)
self.image_label.image = self.photo # Maintain a reference to the PhotoImage object
else:
logging.error(f"Failed to load image. HTTP status code: {response.status_code}")
except Exception as e:
logging.error(f"Failed to load image. Error: {str(e)}")
self.display_message_img(f"Failed to load image. Error: {str(e)}")
Может ли кто-нибудь помочь мне понять, почему изображение не загружается после входа в систему через форму входа, и предложить, как решить эту проблему? Буду очень признателен за любые советы о том, как обеспечить правильную загрузку изображения после входа пользователя в систему.
Вот что мне помогло:
def load_and_display_image(self, scu):
result = self.db.get_model_link_line_category(scu)
if result:
link = result[0].strip()
if link:
self.display_image(link)
else:
self.display_message_img("No image available for this SKU.")
else:
self.display_message_img("No data or image available for this SKU.")
import logging
def display_image(self, image_url):
try:
response = requests.get(image_url, verify=False) # For demonstration; disable SSL verification
if response.status_code == 200:
img_data = response.content
img = Image.open(BytesIO(img_data))
img = img.resize((360, 480)) # Resize the image if necessary
self.photo = ImageTk.PhotoImage(image=img, master=self) # Store the image in a PhotoImage object
# Configure the image label with the new PhotoImage object
self.image_label.config(image=self.photo)
self.image_label.image = self.photo # Maintain a reference to the PhotoImage object
else:
logging.error(f"Failed to load image from {image_url}. HTTP status code: {response.status_code}")
self.display_message_img("Failed to load image: HTTP error")
except requests.exceptions.RequestException as e:
logging.error(f"Failed to make a request to {image_url}: {e}")
self.display_message_img(f"Failed to load image: {str(e)}")
except Exception as e:
logging.error(f"An unexpected error occurred while loading image: {str(e)}")
self.display_message_img(f"Failed to load image: {str(e)}")
def display_message_img(self, message):
self.image_label.config(text=message, image=None) # Display the message
def on_close(self):
"""Handle the application close event."""
if messagebox.askokcancel("Quit", "Do you want to exit the application?"):
if hasattr(self, 'scan'):
self.scan.stop() # Assuming there's a method to stop the scanning process
self.destroy()
Подробнее здесь: https://stackoverflow.com/questions/784 ... ui-changes
