Complete label printer redesign: file monitoring, SVG templates, sharp print quality
- Redesigned GUI for automatic file monitoring workflow - Changed label format to 35x25mm landscape - Implemented SVG template support with variable substitution - Added configuration auto-save/load (conf/app.conf) - Added system tray minimize functionality - Fixed print quality: landscape orientation, vector fonts, 600 DPI - Auto-clear file after print to prevent duplicates - All popups auto-dismiss after 2-3 seconds - Semicolon separator for data format (article;nr_art;serial) - SumatraPDF integration with noscale settings - Printer configured for outline fonts (sharp output) - Reorganized documentation into documentation/ folder
This commit is contained in:
NAME
121
print_label.py
121
print_label.py
@@ -200,16 +200,16 @@ def create_label_pdf(text):
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PDFs are saved to the pdf_backup folder.
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Args:
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text (str): Combined text in format "SAP|CANTITATE|LOT" or single value
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text (str): Combined text in format "article;nr_art;serial" or single value
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Returns:
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str: Path to the generated PDF file
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"""
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# Parse the text input
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parts = text.split('|') if '|' in text else [text, '', '']
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sap_nr = parts[0].strip() if len(parts) > 0 else ''
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cantitate = parts[1].strip() if len(parts) > 1 else ''
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lot_number = parts[2].strip() if len(parts) > 2 else ''
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# Parse the text input - using semicolon separator
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parts = text.split(';') if ';' in text else [text, '', '']
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article = parts[0].strip() if len(parts) > 0 else ''
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nr_art = parts[1].strip() if len(parts) > 1 else ''
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serial = parts[2].strip() if len(parts) > 2 else ''
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# Create PDF using high-quality generator
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generator = PDFLabelGenerator()
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@@ -221,7 +221,16 @@ def create_label_pdf(text):
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timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
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pdf_filename = os.path.join(pdf_backup_dir, f"final_label_{timestamp}.pdf")
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return generator.create_label_pdf(sap_nr, cantitate, lot_number, pdf_filename)
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# Check for default SVG template
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svg_template = None
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default_svg = os.path.join('conf', 'label_template.svg')
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if os.path.exists(default_svg):
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svg_template = default_svg
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# Check for default image path
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image_path = os.path.join('conf', 'accepted.png')
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return generator.create_label_pdf(article, nr_art, serial, pdf_filename, image_path, svg_template)
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def print_to_printer(printer_name, file_path):
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@@ -249,58 +258,68 @@ def print_to_printer(printer_name, file_path):
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return True
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elif SYSTEM == "Windows":
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# Windows: Print directly without opening PDF viewer
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# Windows: Print PDF using various methods
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try:
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if WIN32_AVAILABLE:
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import win32print
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import win32api
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if file_path.endswith('.pdf'):
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# Method 1: Try SumatraPDF for best silent printing
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sumatra_paths = [
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os.path.join(os.path.dirname(os.path.abspath(__file__)), 'conf', 'SumatraPDF.exe'),
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os.path.join(os.path.dirname(os.path.abspath(__file__)), 'conf', 'SumatraPDF-portable.exe'),
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r"C:\Program Files\SumatraPDF\SumatraPDF.exe",
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r"C:\Program Files (x86)\SumatraPDF\SumatraPDF.exe",
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os.path.expandvars(r"%LOCALAPPDATA%\SumatraPDF\SumatraPDF.exe"),
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]
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if file_path.endswith('.pdf'):
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# Use SumatraPDF command-line or direct raw printing
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# Try printing via subprocess to avoid opening a PDF viewer window
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# Method: Use win32print raw API to send to printer silently
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sumatra_found = False
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for sumatra_path in sumatra_paths:
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if os.path.exists(sumatra_path):
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sumatra_found = True
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try:
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# Use SumatraPDF silent printing with high quality settings
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# noscale = print at actual size without scaling
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# landscape = force landscape orientation for 35x25mm labels
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# Note: SumatraPDF uses printer driver's quality settings
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subprocess.run([
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sumatra_path,
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'-print-to', printer_name,
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'-silent',
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'-print-settings', 'noscale,landscape',
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file_path
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], check=True, creationflags=subprocess.CREATE_NO_WINDOW)
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print(f"Label sent to printer via SumatraPDF: {printer_name}")
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return True
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except Exception as sumatra_err:
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print(f"SumatraPDF print failed: {sumatra_err}")
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break
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# Method 2: Use ShellExecute with printto (requires default PDF viewer)
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if not sumatra_found or WIN32_AVAILABLE:
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try:
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hprinter = win32print.OpenPrinter(printer_name)
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try:
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# Start a print job
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job_info = ("Label Print", None, "RAW")
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hjob = win32print.StartDocPrinter(hprinter, 1, job_info)
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win32print.StartPagePrinter(hprinter)
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# Read PDF file and send to printer
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with open(file_path, 'rb') as f:
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pdf_data = f.read()
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win32print.WritePrinter(hprinter, pdf_data)
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win32print.EndPagePrinter(hprinter)
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win32print.EndDocPrinter(hprinter)
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print(f"Label sent to printer: {printer_name}")
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finally:
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win32print.ClosePrinter(hprinter)
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import win32api
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win32api.ShellExecute(
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0, "printto", file_path,
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f'"{printer_name}"', ".", 0
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)
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print(f"Label sent to printer via ShellExecute: {printer_name}")
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return True
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except Exception as raw_err:
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print(f"Raw print failed ({raw_err}), trying ShellExecute silently...")
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# Fallback: Use ShellExecute with printto (minimized, auto-closes)
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except Exception as shell_err:
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print(f"ShellExecute print failed: {shell_err}")
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# Method 3: Open PDF with default viewer (last resort)
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try:
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win32api.ShellExecute(
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0, "printto", file_path,
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f'"{printer_name}"', ".", 0
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)
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print(f"Label sent to printer: {printer_name}")
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os.startfile(file_path, "print")
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print(f"Opened PDF for printing: {file_path}")
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print("Please close the PDF viewer after printing.")
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return True
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except Exception as shell_err:
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print(f"ShellExecute print failed: {shell_err}")
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except Exception as startfile_err:
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print(f"Could not open PDF: {startfile_err}")
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print("PDF saved as backup only")
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return True
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else:
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# Non-PDF files: print silently with notepad
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subprocess.run(['notepad', '/p', file_path],
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check=False,
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creationflags=subprocess.CREATE_NO_WINDOW)
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print(f"Label sent to printer: {printer_name}")
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return True
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else:
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print("win32print not available, PDF saved as backup only")
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# Non-PDF files: print silently with notepad
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subprocess.run(['notepad', '/p', file_path],
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check=False,
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creationflags=subprocess.CREATE_NO_WINDOW)
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print(f"Label sent to printer: {printer_name}")
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return True
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except Exception as e:
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print(f"Windows print error: {e}")
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