Clean repository and update .gitignore
- Remove build artifacts from git tracking (build/, dist/, __pycache__/, *.spec) - Updated .gitignore to properly exclude generated files - Added old_code/ documentation folder - Updated sample_data.txt to show new 5-field format - Exclude user-specific conf/app.conf from tracking
This commit is contained in:
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old_code/print_with_size.py
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old_code/print_with_size.py
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"""
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Improved printing module that explicitly sets paper size for thermal label printers.
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This prevents the printer from using default paper size (continuous roll).
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"""
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import win32print
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import win32ui
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import win32con
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from PIL import Image
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import os
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def mm_to_inches(mm):
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"""Convert millimeters to inches"""
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return mm / 25.4
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def mm_to_hundredths_inch(mm):
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"""Convert millimeters to hundredths of an inch (used by Windows print API)"""
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return int(mm_to_inches(mm) * 100)
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def print_pdf_with_custom_size(pdf_path, printer_name, width_mm=35, height_mm=25):
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"""
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Print PDF with explicit paper size settings for thermal label printers.
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Args:
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pdf_path (str): Path to PDF file
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printer_name (str): Name of the printer
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width_mm (int): Label width in millimeters (default 35mm)
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height_mm (int): Label height in millimeters (default 25mm)
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Returns:
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bool: True if successful
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"""
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try:
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# Convert PDF to image first for better control
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from pdf2image import pdfimages
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print("Converting PDF to image for precise printing...")
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# Use pdftoppm or pdf2image
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import subprocess
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# Try using pdftoppm if available
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temp_image = pdf_path.replace('.pdf', '_temp.png')
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try:
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# Try pdftoppm first (better quality)
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subprocess.run([
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'pdftoppm',
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'-png',
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'-singlefile',
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'-r', '1200', # High DPI
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pdf_path,
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pdf_path.replace('.pdf', '_temp')
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], check=True)
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except:
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# Fallback: convert using Pillow/reportlab
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from reportlab.pdfgen import canvas
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from PyPDF2 import PdfReader
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print("Using alternative PDF conversion method...")
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if os.path.exists(temp_image):
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return print_image_with_custom_size(temp_image, printer_name, width_mm, height_mm)
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else:
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print("Could not convert PDF to image")
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return False
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except Exception as e:
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print(f"Error in advanced printing: {e}")
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return False
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def print_image_with_custom_size(image_path, printer_name, width_mm=35, height_mm=25):
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"""
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Print image with explicit paper size for thermal label printers.
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Args:
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image_path (str): Path to image file
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printer_name (str): Name of the printer
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width_mm (int): Label width in millimeters
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height_mm (int): Label height in millimeters
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Returns:
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bool: True if successful
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"""
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try:
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# Open the printer
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hprinter = win32print.OpenPrinter(printer_name)
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try:
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# Get printer device context
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hdc = win32ui.CreateDC()
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hdc.CreatePrinterDC(printer_name)
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# Get printer properties
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props = win32print.GetPrinter(hprinter, 2)
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# Get DEVMODE structure
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devmode = props["pDevMode"]
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# Set custom paper size (DMPAPER_USER = 256)
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devmode.PaperSize = 256 # Custom paper size
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# Set paper dimensions in tenths of millimeter
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devmode.PaperLength = height_mm * 10 # Height in 0.1mm units
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devmode.PaperWidth = width_mm * 10 # Width in 0.1mm units
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# Set orientation to landscape (2) for 35x25mm
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devmode.Orientation = 2 # 2 = Landscape
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# Set print quality to high
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devmode.PrintQuality = win32print.DMRES_HIGH
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# Apply the devmode
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props["pDevMode"] = devmode
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win32print.SetPrinter(hprinter, 2, props, 0)
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# Start document
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doc_info = ("Label Print", None, None, 0)
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hdc.StartDoc("Label Print")
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hdc.StartPage()
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# Load image
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img = Image.open(image_path)
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# Get printer DPI
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printer_dpi_x = hdc.GetDeviceCaps(win32con.LOGPIXELSX)
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printer_dpi_y = hdc.GetDeviceCaps(win32con.LOGPIXELSY)
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# Calculate image size in pixels based on mm dimensions
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width_pixels = int(mm_to_inches(width_mm) * printer_dpi_x)
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height_pixels = int(mm_to_inches(height_mm) * printer_dpi_y)
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# Resize image to exact label dimensions
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img_resized = img.resize((width_pixels, height_pixels), Image.Resampling.LANCZOS)
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# Convert to bitmap
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dib = ImageWin.Dib(img_resized)
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# Print at position (0,0) with exact size
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dib.draw(hdc.GetHandleOutput(), (0, 0, width_pixels, height_pixels))
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# End document
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hdc.EndPage()
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hdc.EndDoc()
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print(f"Label printed successfully with custom size: {width_mm}x{height_mm}mm")
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return True
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finally:
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win32print.ClosePrinter(hprinter)
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except Exception as e:
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print(f"Error printing with custom size: {e}")
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import traceback
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traceback.print_exc()
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return False
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def set_printer_paper_size(printer_name, width_mm=35, height_mm=25):
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"""
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Configure printer to use custom paper size.
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This sets the printer default to the label size.
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Args:
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printer_name (str): Name of the printer
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width_mm (int): Label width in millimeters
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height_mm (int): Label height in millimeters
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Returns:
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bool: True if successful
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"""
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try:
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hprinter = win32print.OpenPrinter(printer_name)
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try:
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# Get current printer properties
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props = win32print.GetPrinter(hprinter, 2)
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devmode = props["pDevMode"]
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# Configure for custom label size
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devmode.PaperSize = 256 # DMPAPER_USER (custom)
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devmode.PaperLength = height_mm * 10 # in 0.1mm units
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devmode.PaperWidth = width_mm * 10 # in 0.1mm units
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devmode.Orientation = 2 # Landscape
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devmode.PrintQuality = win32print.DMRES_HIGH
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# Update fields flags
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devmode.Fields = (
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win32print.DM_PAPERSIZE |
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win32print.DM_PAPERLENGTH |
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win32print.DM_PAPERWIDTH |
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win32print.DM_ORIENTATION |
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win32print.DM_PRINTQUALITY
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)
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# Apply settings
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props["pDevMode"] = devmode
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win32print.SetPrinter(hprinter, 2, props, 0)
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print(f"Printer '{printer_name}' configured for {width_mm}x{height_mm}mm labels")
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return True
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finally:
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win32print.ClosePrinter(hprinter)
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except Exception as e:
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print(f"Error configuring printer: {e}")
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import traceback
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traceback.print_exc()
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return False
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if __name__ == "__main__":
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# Test configuration
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printer_name = "Labels"
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print("Testing printer configuration...")
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success = set_printer_paper_size(printer_name, 35, 25)
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if success:
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print("\n✅ Printer configured successfully!")
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print("The printer should now use 35x25mm label size by default.")
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else:
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print("\n❌ Failed to configure printer")
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print("You may need to set the paper size manually in printer preferences.")
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