simple function to print 9/5 labels

app.py

@@ -1,16 +1,421 @@
 import tkinter as tk
-from tkinter import simpledialog, messagebox, ttk
+from tkinter import simpledialog, messagebox, ttk, font
 from PIL import Image, ImageTk, ImageDraw, ImageFont
 import barcode
 from barcode.writer import ImageWriter
 import cups
 import os
+import time
 
+# Valid operator codes (in a real app, this would be in a database)
+VALID_OPERATORS = {
+    "OP001": "Operator 1",
+    "OP002": "Operator 2",
+    "OP003": "Operator 3",
+    "123456": "Admin"  # Simple code for testing
+}
+
+class LabelApp(tk.Tk):
+    def __init__(self):
+        super().__init__()
+        
+        # Configure fullscreen toggling
+        self.allow_fullscreen_toggle = True  # Variable to control ESC key behavior
+        
+        # Configure the main window
+        self.title("Label Printing System")
+        self.configure(bg="#f0f0f0")
+        
+        # Create a container for all frames
+        self.container = tk.Frame(self)
+        self.container.pack(fill="both", expand=True)
+        
+        # Current logged in operator
+        self.current_operator = None
+        
+        # Initialize frames dictionary
+        self.frames = {}
+        
+        # Create frames
+        for F in (LoginFrame, DashboardFrame, SettingsFrame):
+            frame = F(self.container, self)
+            self.frames[F] = frame
+            frame.grid(row=0, column=0, sticky="nsew")
+        
+        # Configure container grid
+        self.container.grid_rowconfigure(0, weight=1)
+        self.container.grid_columnconfigure(0, weight=1)
+        
+        # Show login frame
+        self.show_frame(LoginFrame)
+        
+        # Bind Escape key to toggle fullscreen, respecting the variable
+        self.bind('<Escape>', self.handle_escape)
+        
+        # Use after() to ensure fullscreen works - solves issues on some systems
+        self.attributes('-fullscreen', True)
+        self.after(100, self.ensure_fullscreen)
+        
+    def show_frame(self, frame_class):
+        """Bring the specified frame to the front"""
+        frame = self.frames[frame_class]
+        frame.tkraise()
+    
+    def login(self, operator_code):
+        """Attempt to login with the provided operator code"""
+        if operator_code in VALID_OPERATORS:
+            self.current_operator = {
+                "code": operator_code,
+                "name": VALID_OPERATORS[operator_code],
+                "login_time": time.strftime("%Y-%m-%d %H:%M:%S")
+            }
+            
+            # Disable fullscreen toggle for admin users
+            if operator_code == "123456":  # Admin code
+                self.set_fullscreen_toggle(False)
+            else:
+                self.set_fullscreen_toggle(True)
+                
+            self.show_frame(DashboardFrame)
+            self.frames[DashboardFrame].update_operator_info()
+            return True
+        return False
+    
+    def logout(self):
+        """Log out and return to login screen"""
+        self.current_operator = None
+        self.show_frame(LoginFrame)
+
+    def handle_escape(self, event):
+        """Handle ESC key press based on toggle variable"""
+        if self.allow_fullscreen_toggle:
+            self.toggle_fullscreen()
+    
+    def toggle_fullscreen(self):
+        """Toggle fullscreen mode"""
+        if self.attributes('-fullscreen'):
+            self.attributes('-fullscreen', False)
+        else:
+            self.attributes('-fullscreen', True)
+
+    def set_fullscreen_toggle(self, enabled):
+        """Enable or disable the ESC key fullscreen toggle"""
+        self.allow_fullscreen_toggle = enabled
+    
+    def ensure_fullscreen(self):
+        """Make sure we're in fullscreen mode"""
+        if not self.attributes('-fullscreen'):
+            self.attributes('-fullscreen', True)
+    
+    def is_admin(self):
+        """Check if the current user is an admin"""
+        if self.current_operator and self.current_operator["code"] == "123456":
+            return True
+        return False
+
+
+class LoginFrame(tk.Frame):
+    def __init__(self, parent, controller):
+        super().__init__(parent, bg="#f0f0f0")
+        self.controller = controller
+        
+        # Create login form
+        login_frame = tk.Frame(self, bg="#ffffff", padx=30, pady=30)
+        login_frame.place(relx=0.5, rely=0.5, anchor="center")
+        
+        # Title
+        title_font = font.Font(family="Arial", size=24, weight="bold")
+        tk.Label(login_frame, text="Label Printing System", font=title_font, bg="#ffffff").pack(pady=(0, 20))
+        
+        # Operator code entry
+        tk.Label(login_frame, text="Scan Operator Code:", font=("Arial", 14), bg="#ffffff").pack(anchor="w", pady=(10, 5))
+        self.code_var = tk.StringVar()
+        code_entry = tk.Entry(login_frame, textvariable=self.code_var, font=("Arial", 16), width=20, show="*")
+        code_entry.pack(pady=(0, 20), fill="x")
+        code_entry.focus_set()
+        
+        # Login button
+        login_btn = tk.Button(login_frame, text="Login", font=("Arial", 14), 
+                             bg="#4CAF50", fg="white", padx=20, pady=5,
+                             command=self.login)
+        login_btn.pack(pady=(10, 5))
+        
+        # Exit button
+        exit_btn = tk.Button(login_frame, text="Exit", font=("Arial", 14), 
+                            bg="#f44336", fg="white", padx=20, pady=5,
+                            command=self.controller.destroy)
+        exit_btn.pack(pady=(5, 0))
+        
+        # Bind Enter key to login
+        code_entry.bind("<Return>", lambda event: self.login())
+    
+    def login(self):
+        operator_code = self.code_var.get()
+        if not operator_code:
+            messagebox.showerror("Error", "Please enter an operator code")
+            return
+        
+        if self.controller.login(operator_code):
+            self.code_var.set("")  # Clear the entry
+        else:
+            messagebox.showerror("Error", "Invalid operator code")
+            self.code_var.set("")  # Clear the entry
+
+
+class DashboardFrame(tk.Frame):
+    def __init__(self, parent, controller):
+        super().__init__(parent, bg="#f0f0f0")
+        self.controller = controller
+        
+        # Create header frame
+        header_frame = tk.Frame(self, bg="#333333", height=60)
+        header_frame.pack(fill="x")
+        
+        # App title
+        tk.Label(header_frame, text="Label Printing Dashboard", font=("Arial", 16, "bold"), 
+                fg="white", bg="#333333").pack(side="left", padx=20, pady=10)
+        
+        # Operator info
+        self.operator_label = tk.Label(header_frame, text="", font=("Arial", 12), 
+                                     fg="white", bg="#333333")
+        self.operator_label.pack(side="right", padx=20, pady=10)
+        
+        # Settings button (only visible to admin)
+        self.settings_btn = tk.Button(header_frame, text="Settings", font=("Arial", 12), 
+                                    bg="#2196F3", fg="white", padx=10, pady=2,
+                                    command=lambda: controller.show_frame(SettingsFrame))
+        self.settings_btn.pack(side="right", padx=10, pady=10)
+        self.settings_btn.pack_forget()  # Hide initially
+        
+        # Logout button
+        logout_btn = tk.Button(header_frame, text="Logout", font=("Arial", 12), 
+                              bg="#f44336", fg="white", padx=10, pady=2,
+                              command=self.controller.logout)
+        logout_btn.pack(side="right", padx=10, pady=10)
+        
+        # Create main container to hold all three frames
+        main_container = tk.Frame(self, bg="#f0f0f0", padx=10, pady=10)
+        main_container.pack(fill="both", expand=True)
+        
+        # Configure grid for the main container (2 rows, 2 columns)
+        main_container.columnconfigure(0, weight=1)
+        main_container.columnconfigure(1, weight=1)
+        main_container.rowconfigure(0, weight=2)  # Top row larger
+        main_container.rowconfigure(1, weight=1)  # Bottom row smaller
+        
+        # 1. Create Label frame (top left)
+        label_frame = tk.LabelFrame(main_container, text="Create Label", font=("Arial", 14), 
+                                   bg="#f0f0f0", padx=20, pady=20)
+        label_frame.grid(row=0, column=0, sticky="nsew", padx=5, pady=5)
+        
+        # 2. Available Articles frame (top right)
+        articles_frame = tk.LabelFrame(main_container, text="Articole disponibile in viitor", 
+                                     font=("Arial", 14), bg="#f0f0f0", padx=20, pady=20)
+        articles_frame.grid(row=0, column=1, sticky="nsew", padx=5, pady=5)
+        
+        # 3. Last 6 Labels frame (bottom, spans two columns)
+        history_frame = tk.LabelFrame(main_container, text="Ultimele 6 etichete printate", 
+                                    font=("Arial", 14), bg="#f0f0f0", padx=20, pady=20)
+        history_frame.grid(row=1, column=0, columnspan=2, sticky="nsew", padx=5, pady=5)
+        
+        # Fill the Create Label frame with existing content
+        # Text input
+        tk.Label(label_frame, text="Enter text for label:", font=("Arial", 12), bg="#f0f0f0").pack(anchor="w", pady=(0, 5))
+        self.text_var = tk.StringVar()
+        text_entry = tk.Entry(label_frame, textvariable=self.text_var, font=("Arial", 14), width=40)
+        text_entry.pack(fill="x", pady=(0, 20))
+        text_entry.focus_set()
+        
+        # Preview checkbox
+        self.preview_var = tk.BooleanVar(value=True)
+        preview_chk = tk.Checkbutton(label_frame, text="Show print preview", variable=self.preview_var, 
+                                    font=("Arial", 12), bg="#f0f0f0")
+        preview_chk.pack(anchor="w", pady=(0, 20))
+        
+        # Buttons frame
+        buttons_frame = tk.Frame(label_frame, bg="#f0f0f0")
+        buttons_frame.pack(fill="x", pady=10)
+        
+        # Print button
+        print_btn = tk.Button(buttons_frame, text="Print Label", font=("Arial", 14), 
+                             bg="#4CAF50", fg="white", padx=20, pady=10,
+                             command=self.print_label)
+        print_btn.pack(side="left", padx=(0, 10))
+        
+        # Clear button
+        clear_btn = tk.Button(buttons_frame, text="Clear", font=("Arial", 14), 
+                             bg="#ff9800", fg="white", padx=20, pady=10,
+                             command=lambda: self.text_var.set(""))
+        clear_btn.pack(side="left")
+        
+        # Placeholder message for the other frames (to be filled later)
+        tk.Label(articles_frame, text="Future articles will be displayed here", 
+                font=("Arial", 12), bg="#f0f0f0").pack(expand=True)
+        
+        tk.Label(history_frame, text="Last 6 printed labels will be displayed here", 
+                font=("Arial", 12), bg="#f0f0f0").pack(expand=True)
+        
+        # Status frame at the bottom
+        status_frame = tk.Frame(self, bg="#e0e0e0", height=30)
+        status_frame.pack(fill="x", side="bottom")
+        
+        self.status_label = tk.Label(status_frame, text="Ready", font=("Arial", 10), bg="#e0e0e0")
+        self.status_label.pack(side="left", padx=10, pady=5)
+    
+    def update_operator_info(self):
+        """Update the operator information displayed in the header"""
+        if self.controller.current_operator:
+            operator = self.controller.current_operator
+            self.operator_label.config(text=f"Operator: {operator['name']} ({operator['code']})")
+            
+            # Show settings button only for admin
+            if self.controller.is_admin():
+                self.settings_btn.pack(side="right", padx=10, pady=10)
+            else:
+                self.settings_btn.pack_forget()
+    
+    def print_label(self):
+        """Print a label with the entered text"""
+        text = self.text_var.get().strip()
+        if not text:
+            messagebox.showerror("Error", "Please enter text for the label")
+            return
+        
+        # Get saved printer or available printers
+        saved_printer = get_saved_printer()
+        
+        if saved_printer:
+            printer = saved_printer
+        else:
+            # Get available printers
+            try:
+                printers = get_printers()
+                if not printers:
+                    messagebox.showerror("Error", "No printers found")
+                    return
+            except Exception as e:
+                messagebox.showerror("Error", f"Could not get printers: {str(e)}")
+                return
+            
+            # Select printer
+            printer = select_printer(printers)
+            if not printer:
+                return  # User cancelled
+        
+        # Create and print label
+        try:
+            self.status_label.config(text="Creating label...")
+            self.update_idletasks()
+            
+            label_img = create_label_image(text)
+            label_img.save('final_label.png')
+            
+            if self.preview_var.get():
+                self.status_label.config(text="Showing preview...")
+                self.update_idletasks()
+                show_preview('final_label.png', lambda: self.complete_print(printer, text))
+            else:
+                self.complete_print(printer, text)
+                
+        except Exception as e:
+            messagebox.showerror("Error", f"Error creating label: {str(e)}")
+            self.status_label.config(text="Ready")
+    
+    def complete_print(self, printer, text):
+        """Complete the print job after preview (if shown)"""
+        try:
+            self.status_label.config(text="Printing...")
+            self.update_idletasks()
+            
+            print_label(printer, text)
+            
+            self.status_label.config(text="Label printed successfully")
+            show_auto_close_info("Success", "Label sent to printer", timeout=2000)
+            
+            # Clear text field after successful print
+            self.text_var.set("")
+            
+        except Exception as e:
+            messagebox.showerror("Error", f"Error printing label: {str(e)}")
+        finally:
+            self.status_label.config(text="Ready")
+
+
+class SettingsFrame(tk.Frame):
+    def __init__(self, parent, controller):
+        super().__init__(parent, bg="#f0f0f0")
+        self.controller = controller
+        
+        # Create header frame
+        header_frame = tk.Frame(self, bg="#333333", height=60)
+        header_frame.pack(fill="x")
+        
+        # App title
+        tk.Label(header_frame, text="Settings", font=("Arial", 16, "bold"), 
+                fg="white", bg="#333333").pack(side="left", padx=20, pady=10)
+        
+        # Back button
+        back_btn = tk.Button(header_frame, text="Back to Dashboard", font=("Arial", 12), 
+                            bg="#4CAF50", fg="white", padx=10, pady=2,
+                            command=lambda: controller.show_frame(DashboardFrame))
+        back_btn.pack(side="right", padx=10, pady=10)
+        
+        # Create main content frame
+        content_frame = tk.Frame(self, bg="#f0f0f0", padx=20, pady=20)
+        content_frame.pack(fill="both", expand=True)
+        
+        # Printer settings section
+        printer_frame = tk.LabelFrame(content_frame, text="Printer Settings", font=("Arial", 14), bg="#f0f0f0", padx=20, pady=20)
+        printer_frame.pack(fill="x", expand=False, padx=20, pady=20)
+        
+        # Printer selection
+        tk.Label(printer_frame, text="Select Default Printer:", font=("Arial", 12), bg="#f0f0f0").pack(anchor="w", pady=(0, 5))
+        
+        # Get available printers
+        try:
+            self.printers = get_printers()
+            self.printer_var = tk.StringVar()
+            
+            # Load saved printer if available
+            saved_printer = load_printer_config()
+            if saved_printer and saved_printer in self.printers:
+                self.printer_var.set(saved_printer)
+            elif self.printers:
+                self.printer_var.set(self.printers[0])
+                
+            combo = ttk.Combobox(printer_frame, textvariable=self.printer_var, values=self.printers, 
+                                state="readonly", font=("Arial", 12), width=40)
+            combo.pack(pady=(0, 20), fill="x")
+            
+            # Save button
+            save_btn = tk.Button(printer_frame, text="Save Printer Setting", font=("Arial", 12), 
+                                bg="#4CAF50", fg="white", padx=10, pady=5,
+                                command=self.save_printer_config)
+            save_btn.pack(pady=10)
+            
+        except Exception as e:
+            tk.Label(printer_frame, text=f"Error loading printers: {str(e)}", font=("Arial", 12), 
+                    fg="red", bg="#f0f0f0").pack(pady=10)
+    
+    def save_printer_config(self):
+        """Save the selected printer to a configuration file"""
+        selected_printer = self.printer_var.get()
+        if selected_printer:
+            try:
+                with open('printer_config.txt', 'w') as f:
+                    f.write(selected_printer)
+                messagebox.showinfo("Success", "Printer setting saved successfully")
+            except Exception as e:
+                messagebox.showerror("Error", f"Could not save printer setting: {str(e)}")
+
+
+# Your existing functions remain largely the same
 def get_printers():
     conn = cups.Connection()
     return list(conn.getPrinters().keys())
 
 def create_label_image(text):
+    # Your existing create_label_image function (unchanged)
     # Label dimensions for 9x5 cm at 300 DPI
     label_width = 1063   # 9 cm
     label_height = 591   # 5 cm
@@ -120,42 +525,64 @@ def show_preview(image_path, on_print):
 def select_printer(printers):
     dialog = tk.Toplevel()
     dialog.title("Select Printer")
-    tk.Label(dialog, text="Select a printer:").pack(padx=10, pady=5)
-    printer_var = tk.StringVar()
-    combo = ttk.Combobox(dialog, textvariable=printer_var, values=printers, state="readonly")
-    combo.pack(padx=10, pady=5)
-    combo.current(0)
+    dialog.geometry("400x250")  # Slightly larger for better visibility
+    dialog.configure(bg="#f0f0f0")  # Match app background
+    dialog.resizable(False, False)
+    
+    # Create a distinctive border
+    frame = tk.Frame(dialog, bd=2, relief="ridge", bg="white", padx=20, pady=20)
+    frame.pack(fill="both", expand=True, padx=10, pady=10)
+    
+    tk.Label(frame, text="Select a printer:", font=("Arial", 14, "bold"), bg="white").pack(padx=10, pady=10)
+    
+    printer_var = tk.StringVar(value=printers[0] if printers else "")  # Default to first printer
+    combo = ttk.Combobox(frame, textvariable=printer_var, values=printers, state="readonly", font=("Arial", 12))
+    combo.pack(padx=10, pady=20, fill="x")
+    
+    button_frame = tk.Frame(frame, bg="white")
+    button_frame.pack(pady=10, fill="x")
+    
     selected = {'printer': None}
+    
     def on_ok():
         selected['printer'] = printer_var.get()
         dialog.destroy()
-    btn = tk.Button(dialog, text="OK", command=on_ok)
-    btn.pack(pady=10)
-    dialog.grab_set()
-    dialog.wait_window()
-    return selected['printer']
-
-def ask_label_text_with_preview():
-    dialog = tk.Toplevel()
-    dialog.title("Label Text")
-    tk.Label(dialog, text="Enter text for the label:").pack(padx=10, pady=(10, 2))
-    text_var = tk.StringVar()
-    entry = tk.Entry(dialog, textvariable=text_var, width=40)
-    entry.pack(padx=10, pady=2)
-    preview_var = tk.BooleanVar(value=True)
-    chk = tk.Checkbutton(dialog, text="Show print preview", variable=preview_var)
-    chk.pack(padx=10, pady=2)
-    result = {'text': None, 'preview': True}
-    def on_ok():
-        result['text'] = text_var.get()
-        result['preview'] = preview_var.get()
+    
+    def on_cancel():
         dialog.destroy()
-    btn = tk.Button(dialog, text="OK", command=on_ok)
-    btn.pack(pady=10)
-    entry.focus()
+    
+    # Auto-select timeout
+    def auto_select():
+        if not selected['printer'] and printers:
+            selected['printer'] = printers[0]
+            dialog.destroy()
+    
+    ok_btn = tk.Button(button_frame, text="OK", command=on_ok, font=("Arial", 12), 
+                     bg="#4CAF50", fg="white", width=8)
+    ok_btn.pack(side="left", padx=(50, 10))
+    
+    tk.Button(button_frame, text="Cancel", command=on_cancel, font=("Arial", 12),
+             bg="#f44336", fg="white", width=8).pack(side="left")
+    
+    # Ensure dialog is on top and focused
+    dialog.attributes('-topmost', True)
+    dialog.update()
+    dialog.attributes('-topmost', False)
+    
+    # Auto-select after 15 seconds if no choice made
+    dialog.after(15000, auto_select)
+    
+    # Set focus to the OK button
+    dialog.after(100, lambda: ok_btn.focus_set())
+    
     dialog.grab_set()
     dialog.wait_window()
-    return result['text'], result['preview']
+    
+    # Return default printer if none selected
+    if not selected['printer'] and printers:
+        return printers[0]
+        
+    return selected['printer']
 
 def show_auto_close_info(title, message, timeout=3000):
     info = tk.Toplevel()
@@ -167,33 +594,27 @@ def show_auto_close_info(title, message, timeout=3000):
     info.grab_set()
     info.wait_window()
 
-def main():
-    root = tk.Tk()
-    root.withdraw()
-    
-    printers = get_printers()
-    if not printers:
-        messagebox.showerror("Error", "No printers found.")
-        return
-    
-    printer = select_printer(printers)
-    if not printer:
-        messagebox.showerror("Error", "No printer selected.")
-        return
-    
-    text, do_preview = ask_label_text_with_preview()
-    if not text:
-        messagebox.showerror("Error", "No text entered.")
-        return
+def load_printer_config():
+    """Load the saved printer from configuration file"""
+    try:
+        if os.path.exists('printer_config.txt'):
+            with open('printer_config.txt', 'r') as f:
+                return f.read().strip()
+    except Exception:
+        pass
+    return None
 
-    label_img = create_label_image(text)
-    label_img.save('final_label.png')
-    if do_preview:
-        show_preview('final_label.png', lambda: print_label(printer, text))
-        show_auto_close_info("Done", "Label sent to printer.", timeout=2000)
-    else:
-        print_label(printer, text)
-        show_auto_close_info("Done", "Label sent to printer.", timeout=5000)
+def get_saved_printer():
+    """Get the saved printer from configuration"""
+    saved_printer = load_printer_config()
+    if saved_printer:
+        # Verify printer still exists
+        available_printers = get_printers()
+        if saved_printer in available_printers:
+            return saved_printer
+    return None
 
+# Replace your main() function with this
 if __name__ == "__main__":
-    main()
+    app = LabelApp()
+    app.mainloop()

print_label.py

@@ -0,0 +1,242 @@
+from PIL import Image, ImageTk, ImageDraw, ImageFont
+import barcode
+from barcode.writer import ImageWriter
+import cups, time, os
+import tkinter as tk  # Add this explicitly at the top
+
+#functie de printare etichete pe un printer specificat cu un preview opțional
+# Aceasta funcție creează o imagine cu un cod de bare și text, apoi o trimite la imprimantă.
+# Dacă este specificat un preview, afișează o fereastră de previzualizare înainte de a imprima.
+# Dimensiunea etichetei este de 9x5 cm la 300 DPI, cu un cadru exterior și două cadre interioare pentru codul de bare și text.
+# Codul de bare este generat folosind formatul Code128, iar textul este afișat sub codul de bare cu
+# o dimensiune de font maximizată pentru a se potrivi în cadrul textului
+# Imaginile sunt create folosind biblioteca PIL, iar imprimarea se face prin intermediul
+# bibliotecii CUPS pentru gestionarea imprimantelor.
+# Această funcție este utilă pentru a crea etichete personalizate cu coduri de bare și text, care pot fi utilizate în diverse aplicații, cum ar fi etichetarea produselor, inventariere sau organizarea documentelor
+#mod de utilizare in cadrul unui program se copie fisierul print_label.py in directorul de lucru
+# si se apeleaza functia print_label_standalone cu parametrii corespunzători:
+# - value: textul de afișat pe etichetă
+# - printer: numele imprimantei pe care se va face printarea
+# - preview: 0 pentru a nu afișa previzualizarea, 1-3 pentru o previzualizare de 3 secunde, >3 pentru o previzualizare de 5 secunde 
+
+# se recomanda instalarea si setarea imprimantei in sistemul de operare
+# pentru a putea fi utilizata de catre biblioteca CUPS 
+# se verifica proprietatile imprimantei in cups sa fie setata dimensiunea corecta a etichetei
+# pentru a instala biblioteca barcode se foloseste comanda pip install python-barcode
+# pentru a instala biblioteca PIL se foloseste comanda pip install pillow
+# pentru a instala biblioteca CUPS se foloseste comanda pip install pycups
+# pentru a instala biblioteca Tkinter se foloseste comanda sudo apt-get install python3-tk
+
+
+def create_label_image(text):
+    """
+    Create a label image with barcode and text.
+    
+    Args:
+        text (str): The text to encode in the barcode and display
+        
+    Returns:
+        PIL.Image: The generated label image
+    """
+    # Label dimensions for 9x5 cm at 300 DPI
+    label_width = 1063   # 9 cm
+    label_height = 591   # 5 cm
+
+    # Outer frame (95% of label, centered)
+    outer_frame_width = int(label_width * 0.95)
+    outer_frame_height = int(label_height * 0.95)
+    outer_frame_x = (label_width - outer_frame_width) // 2
+    outer_frame_y = (label_height - outer_frame_height) // 2
+
+    # Barcode frame (top, inside outer frame)
+    barcode_frame_width = int(outer_frame_width * 0.90)
+    barcode_frame_height = int(outer_frame_height * 0.60)
+    barcode_frame_x = outer_frame_x + (outer_frame_width - barcode_frame_width) // 2
+    barcode_frame_y = outer_frame_y
+
+    # Text frame (immediately below barcode frame)
+    text_frame_width = int(outer_frame_width * 0.90)
+    text_frame_height = int(outer_frame_height * 0.35)
+    text_frame_x = outer_frame_x + (outer_frame_width - text_frame_width) // 2
+    gap_between_frames = 5  # or 0 for no gap
+    text_frame_y = barcode_frame_y + barcode_frame_height + gap_between_frames
+
+    # Generate barcode image (no text), at higher resolution
+    CODE128 = barcode.get_barcode_class('code128')
+    writer_options = {
+        "write_text": False,
+        "module_width": 0.5,  # default is 0.2, increase for higher res
+        "module_height": barcode_frame_height,  # match frame height
+        "quiet_zone": 3.5,    # default, can adjust if needed
+        "font_size": 0        # no text
+    }
+    code = CODE128(text, writer=ImageWriter())
+    filename = code.save('label_barcode', options=writer_options)
+    barcode_img = Image.open(filename)
+
+    # Now resize barcode to exactly fit barcode frame (stretch, do not keep aspect ratio)
+    barcode_resized = barcode_img.resize((barcode_frame_width, barcode_frame_height), Image.LANCZOS)
+
+    # Create label image
+    label_img = Image.new('RGB', (label_width, label_height), 'white')
+
+    # Paste barcode centered in barcode frame
+    label_img.paste(barcode_resized, (barcode_frame_x, barcode_frame_y))
+
+    # Draw text in text frame, maximize font size to fit frame (keep sharpness)
+    font_path = "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf"
+    max_font_size = text_frame_height
+    min_font_size = 10
+    best_font_size = min_font_size
+    for font_size in range(min_font_size, max_font_size + 1):
+        try:
+            font = ImageFont.truetype(font_path, font_size)
+        except IOError:
+            font = ImageFont.load_default()
+            break
+        dummy_img = Image.new('RGB', (1, 1))
+        dummy_draw = ImageDraw.Draw(dummy_img)
+        text_bbox = dummy_draw.textbbox((0, 0), text, font=font)
+        text_width = text_bbox[2] - text_bbox[0]
+        text_height = text_bbox[3] - text_bbox[1]
+        if text_width > text_frame_width or text_height > text_frame_height:
+            break
+        best_font_size = font_size
+
+    # Use the best font size found
+    try:
+        font = ImageFont.truetype(font_path, best_font_size)
+    except IOError:
+        font = ImageFont.load_default()
+    draw = ImageDraw.Draw(label_img)
+    text_bbox = draw.textbbox((0, 0), text, font=font)
+    text_width = text_bbox[2] - text_bbox[0]
+    text_height = text_bbox[3] - text_bbox[1]
+    text_x = text_frame_x + (text_frame_width - text_width) // 2
+    text_y = text_frame_y + (text_frame_height - text_height) // 2
+    draw.text((text_x, text_y), text, font=font, fill='black')
+
+    os.remove(filename)  # Clean up temporary barcode file
+    return label_img
+
+def print_label_standalone(value, printer, preview=0):
+    """
+    Print a label with the specified text on the specified printer.
+    
+    Args:
+        value (str): The text to print on the label
+        printer (str): The name of the printer to use
+        preview (int): 0 = no preview, 1-3 = 3s preview, >3 = 5s preview
+    
+    Returns:
+        bool: True if printing was successful, False otherwise
+    """
+    try:
+        # Debug output
+        print(f"Preview value: {preview}")
+        print(f"Preview type: {type(preview)}")
+        
+        # Create the label image
+        label_img = create_label_image(value)
+        label_img.save('final_label.png')
+        
+        # Convert preview to int if it's a string
+        if isinstance(preview, str):
+            preview = int(preview)
+        
+        if preview > 0:  # Any value above 0 shows a preview
+            print("Showing preview window...")
+            # Calculate preview duration in milliseconds
+            if 1 <= preview <= 3:
+                preview_ms = 3000  # 3 seconds
+            else:  # preview > 3
+                preview_ms = 5000  # 5 seconds
+                
+            # Create a Tkinter window for preview - simpler approach
+            root = tk.Tk()
+            root.withdraw()  # Hide the main window
+            preview_window = tk.Toplevel(root)
+            preview_window.title("Label Preview")
+            preview_window.geometry("1063x691")  # A bit taller to accommodate buttons
+            
+            # Track if printing was done
+            printed = False
+            
+            # Function to print and close the preview
+            def do_print():
+                nonlocal printed
+                print("Printing from preview...")
+                conn = cups.Connection()
+                conn.printFile(printer, 'final_label.png', "Label Print", {})
+                printed = True
+                preview_window.destroy()
+            
+            # Function to close without printing
+            def do_cancel():
+                preview_window.destroy()
+            
+            # Display the image
+            img = Image.open('final_label.png')
+            img_tk = ImageTk.PhotoImage(img)
+            label = tk.Label(preview_window, image=img_tk)
+            label.image = img_tk  # Keep reference
+            label.pack(pady=10)
+            
+            # Add a timer label
+            timer_text = f"Auto-printing in {preview_ms//1000} seconds..."
+            timer_label = tk.Label(preview_window, text=timer_text, font=("Arial", 10))
+            timer_label.pack(pady=(0, 5))
+            
+            # Button frame
+            btn_frame = tk.Frame(preview_window)
+            btn_frame.pack(pady=10)
+            
+            # Add print and cancel buttons
+            print_btn = tk.Button(btn_frame, text="Print Now", command=do_print, 
+                                font=("Arial", 12), bg="#4CAF50", fg="white", padx=20, pady=5)
+            print_btn.pack(side="left", padx=10)
+            
+            cancel_btn = tk.Button(btn_frame, text="Cancel", command=do_cancel, 
+                                font=("Arial", 12), bg="#f44336", fg="white", padx=20, pady=5)
+            cancel_btn.pack(side="left", padx=10)
+            
+            # Auto-print after the specified time
+            print(f"Setting auto-print timer for {preview_ms}ms")
+            preview_window.after(preview_ms, do_print)
+            
+            # Make sure the window stays on top
+            preview_window.attributes('-topmost', True)
+            preview_window.update()
+            preview_window.attributes('-topmost', False)
+            
+            # Wait for the window to close
+            root.mainloop()
+            
+            if not printed:
+                # User cancelled, clean up and return False
+                os.remove('final_label.png')
+                return False
+        else:
+            print("Direct printing without preview...")
+            # Direct printing without preview (preview = 0)
+            conn = cups.Connection()
+            conn.printFile(printer, 'final_label.png', "Label Print", {})
+        
+        # Clean up
+        os.remove('final_label.png')
+        return True
+        
+    except Exception as e:
+        print(f"Error printing label: {str(e)}")
+        # Try to clean up if the file exists
+        if os.path.exists('final_label.png'):
+            os.remove('final_label.png')
+        return False
+
+
+
+# Test the function
+#value = "A04444"
+#printer = "PDF"
+#preview = 2
+#print_label_standalone(value, printer, preview)

printer_config.txt

@@ -0,0 +1 @@
+PDF