Initial commit: Adaptronic label printer project
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NAME
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label_printer_gui.py
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257
label_printer_gui.py
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"""
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Label Printer GUI Application using Kivy
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Simplified mobile-friendly interface for printing labels.
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"""
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from kivy.app import App
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from kivy.uix.boxlayout import BoxLayout
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from kivy.uix.gridlayout import GridLayout
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from kivy.uix.label import Label
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from kivy.uix.textinput import TextInput
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from kivy.uix.button import Button
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from kivy.uix.spinner import Spinner
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from kivy.uix.scrollview import ScrollView
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from kivy.uix.popup import Popup
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from kivy.core.window import Window
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from kivy.uix.image import Image as KivyImage
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from kivy.graphics import Color, Rectangle
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import os
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import threading
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import platform
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from print_label import print_label_standalone, get_available_printers
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from kivy.clock import Clock
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# Set window size - portrait/phone dimensions (375x667 like iPhone)
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# Adjusted to be slightly wider for touch-friendly UI
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Window.size = (420, 700)
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class LabelPrinterApp(App):
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"""Simplified Kivy application for label printing"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.available_printers = self.get_available_printers()
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def get_available_printers(self):
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"""Get list of available printers (cross-platform)"""
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return get_available_printers()
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def build(self):
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"""Build the simplified single-column UI"""
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self.title = "Label Printing"
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# Main container - single column layout
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main_layout = BoxLayout(orientation='vertical', spacing=8, padding=12)
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# Title
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title = Label(
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text='[b]Label Printing[/b]',
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markup=True,
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size_hint_y=0.08,
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font_size='18sp',
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color=(1, 1, 1, 1)
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)
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main_layout.add_widget(title)
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# Scroll view for form fields
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scroll = ScrollView(size_hint_y=0.75)
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form_layout = GridLayout(cols=1, spacing=8, size_hint_y=None, padding=8)
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form_layout.bind(minimum_height=form_layout.setter('height'))
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# SAP-Nr. Articol
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sap_label = Label(
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text='SAP-Nr. Articol:',
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size_hint_y=None,
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height=30,
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font_size='12sp'
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)
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form_layout.add_widget(sap_label)
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self.sap_input = TextInput(
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multiline=False,
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size_hint_y=None,
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height=45,
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font_size='14sp',
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background_color=(0.95, 0.95, 0.95, 1),
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padding=(10, 10)
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)
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self.sap_input.bind(text=self.on_sap_text_change)
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form_layout.add_widget(self.sap_input)
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# Cantitate
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qty_label = Label(
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text='Cantitate:',
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size_hint_y=None,
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height=30,
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font_size='12sp'
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)
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form_layout.add_widget(qty_label)
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self.qty_input = TextInput(
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multiline=False,
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size_hint_y=None,
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height=45,
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font_size='14sp',
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background_color=(0.95, 0.95, 0.95, 1),
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padding=(10, 10),
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input_filter='int' # Only allow numbers
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)
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self.qty_input.bind(text=self.on_qty_text_change)
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form_layout.add_widget(self.qty_input)
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# ID rola cablu
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cable_id_label = Label(
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text='ID rola cablu:',
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size_hint_y=None,
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height=30,
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font_size='12sp'
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)
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form_layout.add_widget(cable_id_label)
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self.cable_id_input = TextInput(
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multiline=False,
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size_hint_y=None,
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height=45,
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font_size='14sp',
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background_color=(0.95, 0.95, 0.95, 1),
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padding=(10, 10)
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)
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self.cable_id_input.bind(text=self.on_cable_id_text_change)
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form_layout.add_widget(self.cable_id_input)
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# Printer selection
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printer_label = Label(
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text='Select Printer:',
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size_hint_y=None,
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height=30,
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font_size='12sp'
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)
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form_layout.add_widget(printer_label)
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printer_spinner = Spinner(
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text=self.available_printers[0] if self.available_printers else "No Printers",
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values=self.available_printers,
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size_hint_y=None,
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height=45,
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font_size='12sp'
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)
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self.printer_spinner = printer_spinner
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form_layout.add_widget(printer_spinner)
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scroll.add_widget(form_layout)
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main_layout.add_widget(scroll)
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# Print button
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print_button = Button(
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text='PRINT LABEL',
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size_hint_y=0.15,
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font_size='14sp',
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background_color=(0.2, 0.6, 0.2, 1),
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background_normal='',
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bold=True
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)
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print_button.bind(on_press=self.print_label)
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main_layout.add_widget(print_button)
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return main_layout
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def on_sap_text_change(self, instance, value):
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"""Limit SAP input to 25 characters"""
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if len(value) > 25:
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self.sap_input.text = value[:25]
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def on_qty_text_change(self, instance, value):
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"""Limit Quantity input to 25 characters"""
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if len(value) > 25:
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self.qty_input.text = value[:25]
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def on_cable_id_text_change(self, instance, value):
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"""Limit Cable ID input to 25 characters"""
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if len(value) > 25:
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self.cable_id_input.text = value[:25]
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def print_label(self, instance):
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"""Handle print button press"""
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sap_nr = self.sap_input.text.strip()
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quantity = self.qty_input.text.strip()
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cable_id = self.cable_id_input.text.strip()
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printer = self.printer_spinner.text
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# Validate input
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if not sap_nr and not quantity and not cable_id:
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self.show_popup("Error", "Please enter at least one field")
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return
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# Create combined label text
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label_text = f"{sap_nr}|{quantity}|{cable_id}"
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# Show loading popup
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popup = Popup(
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title='Printing',
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content=BoxLayout(
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orientation='vertical',
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padding=10,
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spacing=10
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),
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size_hint=(0.8, 0.3)
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)
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popup.content.add_widget(Label(text='Processing label...\nPlease wait'))
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popup.open()
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# Print in background thread (using PDF by default)
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def print_thread():
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try:
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success = print_label_standalone(label_text, printer, preview=0, use_pdf=True)
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if success:
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# Use Clock.schedule_once to update UI from main thread
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Clock.schedule_once(lambda dt: popup.dismiss(), 0)
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Clock.schedule_once(lambda dt: self.show_popup("Success", "Label printed successfully!"), 0.1)
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# Clear inputs after successful print
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Clock.schedule_once(lambda dt: self.clear_inputs(), 0.2)
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else:
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Clock.schedule_once(lambda dt: popup.dismiss(), 0)
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Clock.schedule_once(lambda dt: self.show_popup("Error", "Failed to print label"), 0.1)
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except Exception as e:
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Clock.schedule_once(lambda dt: popup.dismiss(), 0)
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Clock.schedule_once(lambda dt: self.show_popup("Error", f"Print error: {str(e)}"), 0.1)
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thread = threading.Thread(target=print_thread)
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thread.daemon = True
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thread.start()
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def clear_inputs(self):
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"""Clear all input fields"""
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self.sap_input.text = ''
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self.qty_input.text = ''
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self.cable_id_input.text = ''
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def show_popup(self, title, message):
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"""Show a popup message"""
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popup = Popup(
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title=title,
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content=BoxLayout(
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orientation='vertical',
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padding=10,
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spacing=10
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),
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size_hint=(0.8, 0.4)
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)
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popup.content.add_widget(Label(text=message))
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close_button = Button(text='OK', size_hint_y=0.3)
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close_button.bind(on_press=popup.dismiss)
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popup.content.add_widget(close_button)
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popup.open()
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if __name__ == '__main__':
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app = LabelPrinterApp()
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app.run()
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