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Add template selection and multiple copy printing features

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- Implemented template selection: type 0=OK (green), type 1=NOK (red)
- Added multiple copy printing (1-100 copies)
- Extended file format to 5 fields: ARTICLE;NR_ART;SERIAL;TYPE;COUNT
- Created OK/NOK SVG templates with visual distinction
- Fixed PDF landscape orientation issues
- Updated SumatraPDF to use noscale for exact dimensions
- Auto-generate conf folder with default templates on first run
- Made pystray optional for system tray functionality
- Updated build scripts for Python 3.13 compatibility (Kivy 2.3+, PyInstaller 6.18)
- Added comprehensive build documentation
- Improved printer configuration guidance
This commit is contained in:
NAME
2026-02-13 23:34:59 +02:00
parent 3b23f89cf0
commit 839828340d
13 changed files with 1131 additions and 117 deletions
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8
.gitignore vendored
View File

@@ -1,6 +1,12 @@
label/ label/
build/ build/
dist/
logs/ logs/
pdf_backup/ pdf_backup/
venv/ venv/
__pycache__/
*.pyc
*.pyo
*.spec
*.egg-info/
.eggs/

303
BUILD_EXECUTABLE.md Normal file
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@@ -0,0 +1,303 @@
# Build Windows Executable (.exe)
## Quick Start
**Option 1: One Command (Recommended)**
```bash
build_windows.bat
```
**Option 2: Python Script**
```bash
python build_exe.py
```
**Option 3: Direct PyInstaller**
```bash
pyinstaller LabelPrinter.spec
```
---
## Requirements
- **Windows** 10/11
- **Python** 3.10 - 3.13 (Python 3.14+ may have compatibility issues)
- **Dependencies** installed (see below)
---
## Step-by-Step Build Process
### 1. Install Python Dependencies
If not already installed:
```bash
pip install -r requirements_windows.txt
```
Or install manually:
```bash
pip install python-barcode pillow reportlab kivy==2.2.1 pyinstaller==6.1.0 pywin32 wmi watchdog svglib cairosvg
```
### 2. Build the Executable
Run the build script:
```bash
build_windows.bat
```
This will:
- ✅ Install/upgrade dependencies
- ✅ Clean old build artifacts
- ✅ Create `LabelPrinter.exe` in `dist/` folder
- ⏱️ Takes 5-15 minutes
### 3. Test the Executable
```bash
cd dist
LabelPrinter.exe
```
---
## What Gets Included
The executable is **self-contained** and includes:
- ✅ All Python code
- ✅ All dependencies (Kivy, ReportLab, svglib, cairosvg, etc.)
- ✅ Auto-generates `conf/` folder on first run
- ✅ Auto-generates `pdf_backup/` and `logs/` folders
**On first run, the app automatically creates:**
```
LabelPrinter.exe location/
├── conf/
│ ├── app.conf (default settings)
│ ├── label_template.svg (default template)
│ ├── label_template_ok.svg (OK labels - green)
│ └── label_template_nok.svg (NOK labels - red)
├── pdf_backup/ (generated PDFs)
└── logs/ (print logs)
```
---
## Output
After successful build:
```
📁 dist/
└── LabelPrinter.exe (Single file, ~80-120 MB)
```
**File size**: 80-120 MB (includes Python runtime + all libraries)
---
## Distribution
### To Deploy on Other Windows Machines:
**Simply copy `LabelPrinter.exe` to the target machine!**
The executable is **100% self-contained**:
- ✅ No Python installation needed
- ✅ No dependencies needed
- ✅ Auto-creates all required folders on first run
- ✅ Generates default templates automatically
**First run will create:**
```
[wherever you put LabelPrinter.exe]/
├── LabelPrinter.exe ← Copy just this file!
├── conf/ ← Auto-generated on first run
│ ├── app.conf
│ ├── label_template.svg
│ ├── label_template_ok.svg
│ └── label_template_nok.svg
├── pdf_backup/ ← Auto-generated
└── logs/ ← Auto-generated
```
**To customize templates on target machine:**
1. Run `LabelPrinter.exe` once (generates conf folder)
2. Edit SVG files in the `conf/` folder
3. Restart the application
**Requirements on target machine:**
- ✅ Windows 10/11
- ✅ Thermal printer configured (35mm x 25mm paper size)
- ⚠️ No other software required!
---
## Troubleshooting
### Build Fails - Missing Dependencies
```bash
pip install --upgrade pip setuptools wheel
pip install -r requirements_windows.txt
```
### Build Fails - PyInstaller Error
```bash
pip install --upgrade pyinstaller==6.1.0
```
### Executable Won't Start
- Check Windows Defender didn't quarantine it
- Run as Administrator once to register
- Check Event Viewer for errors
### Executable is Huge (>150 MB)
This is normal! It includes:
- Python runtime (~40 MB)
- Kivy framework (~30 MB)
- ReportLab, PIL, etc. (~20 MB)
- Your code + data (~10 MB)
### First Run is Slow
- First launch takes 10-30 seconds (Kivy initialization)
- Subsequent launches are faster (~2-5 seconds)
- This is normal behavior
---
## Advanced Options
### Build with Console (for debugging)
Edit `build_windows.bat` and remove `--windowed`:
```bat
pyinstaller label_printer_gui.py ^
--onefile ^
--name=LabelPrinter ^
...
```
### Add Custom Icon
```bat
pyinstaller label_printer_gui.py ^
--onefile ^
--windowed ^
--icon=icon.ico ^
...
```
### Reduce File Size
Not recommended, but possible:
```bat
pyinstaller label_printer_gui.py ^
--onefile ^
--windowed ^
--strip ^
--exclude-module=tkinter ^
--exclude-module=matplotlib ^
...
```
---
## What's Built
**Source Files Compiled:**
- `label_printer_gui.py` (Main GUI)
- `print_label.py` (Printing logic)
- `print_label_pdf.py` (PDF generation)
**Data Files Included:**
- `conf/app.conf` (Settings)
- `conf/label_template.svg` (Default template)
- `conf/label_template_ok.svg` (OK labels - green)
- `conf/label_template_nok.svg` (NOK labels - red)
- `conf/accepted.png` (Checkmark image)
**Output Folders:**
- `pdf_backup/` - Stores generated PDFs
- `logs/` - Stores print logs
---
## Build Times
- **First build**: 10-15 minutes (PyInstaller analyzes all dependencies)
- **Rebuild**: 5-10 minutes (cached analysis)
- **Clean build**: 10-15 minutes (removed cache)
---
## File Structure After Build
```
📁 Project Root/
├── 📄 label_printer_gui.py
├── 📄 print_label.py
├── 📄 print_label_pdf.py
├── 📄 build_windows.bat ← Run this
├── 📄 build_exe.py
├── 📄 LabelPrinter.spec
│
├── 📁 dist/
│ ├── 📄 LabelPrinter.exe ← Your executable!
│ ├── 📁 conf/
│ ├── 📁 pdf_backup/
│ └── 📁 logs/
│
├── 📁 build/ (temp files, can delete)
└── 📁 conf/
├── app.conf
├── label_template.svg
├── label_template_ok.svg
└── label_template_nok.svg
```
---
## Clean Build
To remove all build artifacts:
```bash
rmdir /s /q build
rmdir /s /q dist
del *.spec
```
Then rebuild:
```bash
build_windows.bat
```
---
## Testing
After building, test with:
1. **Run the executable**:
```bash
dist\LabelPrinter.exe
```
2. **Configure monitoring**:
- File: `C:\Users\Public\Documents\check.txt`
3. **Test print**:
- Add to check.txt: `COM-001;ART-123;SN-001;0;1`
- Should print 1 OK label
4. **Test template switching**:
- `COM-002;ART-456;SN-002;1;1` → NOK label (red)
---
## Support
If build fails, check:
1. Python version (3.10-3.13 required)
2. All dependencies installed
3. Windows 10/11 (not Windows 7/8)
4. Disk space (need ~500MB for build)
5. Antivirus not blocking PyInstaller

6
build_exe.py
View File

@@ -46,6 +46,12 @@ args = [
'--hidden-import=reportlab', '--hidden-import=reportlab',
'--hidden-import=print_label', '--hidden-import=print_label',
'--hidden-import=print_label_pdf', '--hidden-import=print_label_pdf',
'--hidden-import=svglib',
'--hidden-import=cairosvg',
'--hidden-import=watchdog',
'--hidden-import=watchdog.observers',
'--hidden-import=watchdog.events',
'--hidden-import=pystray',
] ]
if __name__ == '__main__': if __name__ == '__main__':

10
build_windows.bat
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@@ -39,8 +39,8 @@ echo.
REM Install dependencies REM Install dependencies
echo [3/5] Installing dependencies... echo [3/5] Installing dependencies...
echo Installing: python-barcode, pillow, reportlab, kivy, pyinstaller, pywin32, wmi... echo Installing: python-barcode, pillow, reportlab, kivy, pyinstaller, pywin32, wmi, watchdog, svglib, cairosvg, pystray...
pip install python-barcode pillow reportlab kivy==2.2.1 pyinstaller==6.1.0 pywin32 wmi pip install python-barcode pillow reportlab kivy pyinstaller pywin32 wmi watchdog svglib cairosvg pystray
if errorlevel 1 ( if errorlevel 1 (
echo ERROR: Failed to install dependencies echo ERROR: Failed to install dependencies
pause pause
@@ -72,6 +72,12 @@ pyinstaller label_printer_gui.py ^
--hidden-import=reportlab ^ --hidden-import=reportlab ^
--hidden-import=print_label ^ --hidden-import=print_label ^
--hidden-import=print_label_pdf ^ --hidden-import=print_label_pdf ^
--hidden-import=svglib ^
--hidden-import=cairosvg ^
--hidden-import=watchdog ^
--hidden-import=watchdog.observers ^
--hidden-import=watchdog.events ^
--hidden-import=pystray ^
-y -y
if errorlevel 1 ( if errorlevel 1 (

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check_pdf_size.py Normal file
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@@ -0,0 +1,20 @@
from reportlab.lib.pagesizes import landscape
from reportlab.lib.utils import ImageReader
from reportlab.pdfgen import canvas
import os
# Check the test PDF file
if os.path.exists('test_label.pdf'):
file_size = os.path.getsize('test_label.pdf')
print(f'test_label.pdf exists ({file_size} bytes)')
print(f'Expected: 35mm x 25mm landscape (99.2 x 70.9 points)')
print(f'')
print(f'Open test_label.pdf in a PDF viewer to verify:')
print(f' - Page size should be wider than tall')
print(f' - Content should be correctly oriented')
print(f'')
print(f'In Adobe Reader: File > Properties > Description')
print(f' Page size should show: 3.5 x 2.5 cm or 1.38 x 0.98 in')
else:
print('test_label.pdf not found')

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conf/label_template_nok.svg Normal file
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@@ -0,0 +1,64 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<!-- Creator: CorelDRAW -->
<svg xmlns="http://www.w3.org/2000/svg" xml:space="preserve" width="35mm" height="25mm" version="1.1" style="shape-rendering:geometricPrecision; text-rendering:geometricPrecision; image-rendering:optimizeQuality; fill-rule:evenodd; clip-rule:evenodd"
viewBox="0 0 35 25"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xodm="http://www.corel.com/coreldraw/odm/2003">
<defs>
<font id="FontID0" horiz-adv-x="722" font-variant="normal" style="fill-rule:nonzero" font-style="normal" font-weight="700">
<font-face
font-family="Arial">
<font-face-src>
<font-face-name name="Arial Bold"/>
</font-face-src>
</font-face>
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Side by Side

After

Width:  |  Height:  |  Size: 18 KiB

83
configure_printer_paper_size.ps1 Normal file
View File

@@ -0,0 +1,83 @@
# Configure Thermal Printer for 35mm x 25mm Labels
# Run as Administrator if needed
Write-Host "====================================" -ForegroundColor Cyan
Write-Host "Label Printer Paper Size Setup" -ForegroundColor Cyan
Write-Host "Target: 35mm x 25mm (Landscape)" -ForegroundColor Cyan
Write-Host "====================================" -ForegroundColor Cyan
Write-Host ""
# Get list of printers
$printers = Get-Printer | Select-Object Name, DriverName, PortName
Write-Host "Available Printers:" -ForegroundColor Yellow
$printers | Format-Table -AutoSize
Write-Host ""
Write-Host "MANUAL CONFIGURATION STEPS:" -ForegroundColor Green
Write-Host "===========================" -ForegroundColor Green
Write-Host ""
Write-Host "1. Open Control Panel > Devices and Printers" -ForegroundColor White
Write-Host "2. Right-click your thermal printer (e.g., Citizen CTS-310 or Zebra ZD420)" -ForegroundColor White
Write-Host "3. Select 'Printing Preferences'" -ForegroundColor White
Write-Host "4. Look for 'Paper Size' or 'Media' settings:" -ForegroundColor White
Write-Host " - Size: Custom or 35mm x 25mm" -ForegroundColor Cyan
Write-Host " - Width: 35mm (1.38 inches)" -ForegroundColor Cyan
Write-Host " - Height: 25mm (0.98 inches)" -ForegroundColor Cyan
Write-Host " - Orientation: Landscape" -ForegroundColor Cyan
Write-Host " - Media Type: LABELS (not Continuous)" -ForegroundColor Cyan
Write-Host "5. Click 'Apply' and 'OK'" -ForegroundColor White
Write-Host ""
Write-Host "IMPORTANT FOR ZEBRA PRINTERS:" -ForegroundColor Red
Write-Host "- Must set Media Type = 'Labels' (enables gap sensor)" -ForegroundColor Yellow
Write-Host "- If set to 'Continuous', printer will print on entire roll" -ForegroundColor Yellow
Write-Host ""
Write-Host "CRITICAL PRINTER SETTINGS:" -ForegroundColor Magenta
Write-Host "- Darkness: 10-15 (thermal printers)" -ForegroundColor White
Write-Host "- Speed: Medium" -ForegroundColor White
Write-Host "- Print Mode: Thermal Transfer or Direct Thermal" -ForegroundColor White
Write-Host ""
# Show printer properties access
Write-Host "To open printer properties directly, run:" -ForegroundColor Green
Write-Host 'control printers' -ForegroundColor Cyan
Write-Host ""
# Check if running as admin
$isAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)
if ($isAdmin) {
Write-Host "✓ Running as Administrator" -ForegroundColor Green
} else {
Write-Host "⚠ Not running as Administrator (some settings may require elevation)" -ForegroundColor Yellow
}
Write-Host ""
Write-Host "For Citizen CTS-310 printers:" -ForegroundColor Cyan
Write-Host " 1. Open Devices and Printers" -ForegroundColor White
Write-Host " 2. Right-click 'Citizen CTS-310II' > Printer Properties" -ForegroundColor White
Write-Host " 3. Device Settings tab > Form to Tray Assignment" -ForegroundColor White
Write-Host " 4. Click 'Create Form' button" -ForegroundColor White
Write-Host " 5. Form name: Label35x25" -ForegroundColor White
Write-Host " 6. Width: 35mm, Height: 25mm" -ForegroundColor White
Write-Host " 7. Save and select this form in Printing Preferences" -ForegroundColor White
Write-Host ""
Write-Host "For Zebra ZD420/ZD421 printers:" -ForegroundColor Cyan
Write-Host " 1. Open Zebra Setup Utility (ZSU)" -ForegroundColor White
Write-Host " 2. Select your printer" -ForegroundColor White
Write-Host " 3. Click 'Printer Configuration'" -ForegroundColor White
Write-Host " 4. Media section:" -ForegroundColor White
Write-Host " - Media Type: Label Stock" -ForegroundColor Cyan
Write-Host " - Label Width: 35mm" -ForegroundColor Cyan
Write-Host " - Label Height: 25mm" -ForegroundColor Cyan
Write-Host " 5. Print section:" -ForegroundColor White
Write-Host " - Darkness: 10-15" -ForegroundColor Cyan
Write-Host " - Print Speed: 4 ips (medium)" -ForegroundColor Cyan
Write-Host " 6. Click 'Send to Printer'" -ForegroundColor White
Write-Host ""
Write-Host "After configuration, test print with:" -ForegroundColor Green
Write-Host " python label_printer_gui.py" -ForegroundColor Cyan
Write-Host ""
Write-Host "Press any key to open Printer settings..." -ForegroundColor Yellow
$null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
control printers

206
label_printer_gui.py
View File

@@ -28,10 +28,17 @@ from print_label import print_label_standalone, get_available_printers
from kivy.clock import Clock from kivy.clock import Clock
from watchdog.observers import Observer from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler from watchdog.events import FileSystemEventHandler
import pystray
from pystray import MenuItem as item
from PIL import Image, ImageDraw from PIL import Image, ImageDraw
# Optional system tray support
try:
import pystray
from pystray import MenuItem as item
PYSTRAY_AVAILABLE = True
except ImportError:
PYSTRAY_AVAILABLE = False
print("Warning: pystray not available. System tray functionality disabled.")
# Set window size - portrait/phone dimensions (375x667 like iPhone) # Set window size - portrait/phone dimensions (375x667 like iPhone)
# Adjusted to be slightly wider for touch-friendly UI # Adjusted to be slightly wider for touch-friendly UI
Window.size = (420, 700) Window.size = (420, 700)
@@ -63,6 +70,8 @@ class LabelPrinterApp(App):
def __init__(self, **kwargs): def __init__(self, **kwargs):
super().__init__(**kwargs) super().__init__(**kwargs)
# Initialize conf folder with default templates
self.initialize_conf_folder()
# Build printer display names and mapping to full names # Build printer display names and mapping to full names
full_printers = get_available_printers() full_printers = get_available_printers()
self.printer_display_map = {} # display_name -> full_name self.printer_display_map = {} # display_name -> full_name
@@ -109,6 +118,107 @@ class LabelPrinterApp(App):
"""Resolve display name back to full printer name for printing.""" """Resolve display name back to full printer name for printing."""
return self.printer_display_map.get(display_name, display_name) return self.printer_display_map.get(display_name, display_name)
def initialize_conf_folder(self):
"""
Initialize conf folder with default templates and configuration.
Creates folder and files if they don't exist.
"""
conf_dir = 'conf'
# Create conf folder if it doesn't exist
if not os.path.exists(conf_dir):
os.makedirs(conf_dir, exist_ok=True)
print(f"Created conf folder: {conf_dir}")
# Define default SVG template (minimal 35mm x 25mm with placeholders)
default_svg_template = '''<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" width="35mm" height="25mm" viewBox="0 0 35 25">
<defs>
<style type="text/css">
.text { font-family: Arial; font-weight: bold; font-size: 3.5px; fill: #000000; }
.checkmark { fill: #008000; }
</style>
</defs>
<g id="content">
<text x="2" y="7" class="text">Nr. Comanda: {Article}</text>
<text x="2" y="12" class="text">Nr. Art.: {NrArt}</text>
<text x="2" y="17" class="text">Serial No.: {Serial}</text>
<circle cx="31" cy="7" r="2.5" class="checkmark"/>
<path d="M30,7 L30.8,7.8 L32,6" stroke="white" stroke-width="0.5" fill="none"/>
</g>
</svg>'''
# OK template (green checkmark)
ok_svg_template = '''<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" width="35mm" height="25mm" viewBox="0 0 35 25">
<defs>
<style type="text/css">
.text { font-family: Arial; font-weight: bold; font-size: 3.5px; fill: #000000; }
.checkmark { fill: #008000; }
.ok-text { font-family: Arial; font-weight: bold; font-size: 4px; fill: #008000; }
</style>
</defs>
<g id="content">
<text x="2" y="7" class="text">Nr. Comanda: {Article}</text>
<text x="2" y="12" class="text">Nr. Art.: {NrArt}</text>
<text x="2" y="17" class="text">Serial No.: {Serial}</text>
<text x="29" y="5" class="ok-text">OK</text>
<circle cx="31" cy="12" r="2.5" class="checkmark"/>
<path d="M30,12 L30.8,12.8 L32,11" stroke="white" stroke-width="0.5" fill="none"/>
</g>
</svg>'''
# NOK template (red text and checkmark)
nok_svg_template = '''<?xml version="1.0" encoding="UTF-8"?>
<svg xmlns="http://www.w3.org/2000/svg" width="35mm" height="25mm" viewBox="0 0 35 25">
<defs>
<style type="text/css">
.text { font-family: Arial; font-weight: bold; font-size: 3.5px; fill: #CC0000; }
.checkmark { fill: #CC0000; }
.nok-text { font-family: Arial; font-weight: bold; font-size: 4px; fill: #CC0000; }
</style>
</defs>
<g id="content">
<text x="2" y="7" class="text">Nr. Comanda: {Article}</text>
<text x="2" y="12" class="text">Nr. Art.: {NrArt}</text>
<text x="2" y="17" class="text">Serial No.: {Serial}</text>
<text x="27" y="5" class="nok-text">NOK</text>
<circle cx="31" cy="12" r="2.5" class="checkmark"/>
<path d="M30,12 L30.8,12.8 L32,11" stroke="white" stroke-width="0.5" fill="none"/>
</g>
</svg>'''
# Create SVG template files if they don't exist
templates = {
'label_template.svg': default_svg_template,
'label_template_ok.svg': ok_svg_template,
'label_template_nok.svg': nok_svg_template,
}
for filename, content in templates.items():
file_path = os.path.join(conf_dir, filename)
if not os.path.exists(file_path):
try:
with open(file_path, 'w', encoding='utf-8') as f:
f.write(content)
print(f"Created template: {file_path}")
except Exception as e:
print(f"Failed to create {file_path}: {e}")
# Create default app.conf if it doesn't exist
config_path = os.path.join(conf_dir, 'app.conf')
if not os.path.exists(config_path):
default_config = '''[Settings]
file_path = C:\\Users\\Public\\Documents\\check.txt
printer = PDF
'''
try:
with open(config_path, 'w', encoding='utf-8') as f:
f.write(default_config)
print(f"Created config: {config_path}")
except Exception as e:
print(f"Failed to create {config_path}: {e}")
def cleanup_old_pdfs(self, days=5): def cleanup_old_pdfs(self, days=5):
""" """
Delete PDF files older than specified days from pdf_backup folder. Delete PDF files older than specified days from pdf_backup folder.
@@ -469,6 +579,10 @@ class LabelPrinterApp(App):
""" """
Minimize the application to system tray. Minimize the application to system tray.
""" """
if not PYSTRAY_AVAILABLE:
print("System tray not available - window will minimize normally")
return
if self.is_minimized: if self.is_minimized:
return return
@@ -652,9 +766,13 @@ class LabelPrinterApp(App):
print(f"Error clearing file: {e}") print(f"Error clearing file: {e}")
def read_file_variables(self): def read_file_variables(self):
"""Read variables from monitored file""" """Read variables from monitored file
Expected format: article;nr_art;serial;template_type;count
template_type: 0=OK, 1=NOK
count: number of labels to print (default=1)
"""
if not self.monitored_file or not os.path.exists(self.monitored_file): if not self.monitored_file or not os.path.exists(self.monitored_file):
return None, None, None return None, None, None, 0, 1
try: try:
with open(self.monitored_file, 'r', encoding='utf-8') as f: with open(self.monitored_file, 'r', encoding='utf-8') as f:
@@ -662,14 +780,16 @@ class LabelPrinterApp(App):
# Skip if file is empty or only contains "-" (cleared marker) # Skip if file is empty or only contains "-" (cleared marker)
if not content or content == '-': if not content or content == '-':
return None, None, None return None, None, None, 0, 1
# Parse file content - expecting format: article;nr_art;serial # Parse file content - expecting format: article;nr_art;serial;template_type;count
# or key=value pairs on separate lines # or key=value pairs on separate lines
lines = content.split('\n') lines = content.split('\n')
article = "" article = ""
nr_art = "" nr_art = ""
serial = "" serial = ""
template_type = 0 # Default to OK template
count = 1 # Default to 1 label
# Try semicolon-separated format first # Try semicolon-separated format first
if ';' in content: if ';' in content:
@@ -680,6 +800,20 @@ class LabelPrinterApp(App):
nr_art = parts[1].strip() nr_art = parts[1].strip()
if len(parts) >= 3: if len(parts) >= 3:
serial = parts[2].strip() serial = parts[2].strip()
if len(parts) >= 4:
try:
template_type = int(parts[3].strip())
except ValueError:
template_type = 0
if len(parts) >= 5:
try:
count = int(parts[4].strip())
if count < 1:
count = 1
if count > 100: # Safety limit
count = 100
except ValueError:
count = 1
else: else:
# Try key=value format # Try key=value format
for line in lines: for line in lines:
@@ -694,16 +828,30 @@ class LabelPrinterApp(App):
nr_art = value nr_art = value
elif key in ['serial', 'serial_no', 'serial-no', 'serialno']: elif key in ['serial', 'serial_no', 'serial-no', 'serialno']:
serial = value serial = value
elif key in ['template', 'template_type', 'type']:
try:
template_type = int(value)
except ValueError:
template_type = 0
elif key in ['count', 'quantity', 'copies']:
try:
count = int(value)
if count < 1:
count = 1
if count > 100:
count = 100
except ValueError:
count = 1
return article, nr_art, serial return article, nr_art, serial, template_type, count
except Exception as e: except Exception as e:
print(f"Error reading file: {e}") print(f"Error reading file: {e}")
return None, None, None return None, None, None
def print_label(self, instance): def print_label(self, instance):
"""Handle print button press - read from file and print""" """Handle print button press - read from file and print"""
# Read variables from file # Read variables from file including template type and count
article, nr_art, serial = self.read_file_variables() article, nr_art, serial, template_type, count = self.read_file_variables()
# Resolve display name to full printer name # Resolve display name to full printer name
printer = self._get_full_printer_name(self.printer_spinner.text) printer = self._get_full_printer_name(self.printer_spinner.text)
@@ -713,10 +861,23 @@ class LabelPrinterApp(App):
self.show_popup("Error", "No data in file or file not set", auto_dismiss_after=3) self.show_popup("Error", "No data in file or file not set", auto_dismiss_after=3)
return return
# Select template based on template_type
if template_type == 1:
template_path = os.path.join('conf', 'label_template_nok.svg')
template_name = "NOK"
else:
template_path = os.path.join('conf', 'label_template_ok.svg')
template_name = "OK"
# Verify template exists, fallback to default if not
if not os.path.exists(template_path):
template_path = os.path.join('conf', 'label_template.svg')
template_name = "DEFAULT"
# Create combined label text using semicolon separator # Create combined label text using semicolon separator
label_text = f"{article};{nr_art};{serial}" label_text = f"{article};{nr_art};{serial}"
# Show loading popup # Show loading popup with count info
popup = Popup( popup = Popup(
title='Printing', title='Printing',
content=BoxLayout( content=BoxLayout(
@@ -727,15 +888,32 @@ class LabelPrinterApp(App):
size_hint=(0.8, 0.3) size_hint=(0.8, 0.3)
) )
popup.content.add_widget(Label(text='Processing label...\nPlease wait')) popup.content.add_widget(Label(text=f'Processing {count} label(s)...\nTemplate: {template_name}\nPlease wait'))
popup.open() popup.open()
# Print in background thread (using PDF by default) # Print in background thread (using PDF by default)
def print_thread(): def print_thread():
pdf_filename = None pdf_filename = None
success = False success = False
all_success = True
try: try:
success = print_label_standalone(label_text, printer, preview=0, use_pdf=True) # Print multiple copies if count > 1
for i in range(count):
if count > 1:
Clock.schedule_once(lambda dt, idx=i: popup.content.children[0].text.replace(
f'Processing {count} label(s)...',
f'Printing {idx+1} of {count}...'
), 0)
success = print_label_standalone(label_text, printer, preview=0, use_pdf=True, svg_template=template_path)
if not success:
all_success = False
break
# Small delay between prints for multiple copies
if i < count - 1:
time.sleep(0.5)
# Get the PDF filename that was created # Get the PDF filename that was created
# Files are saved to pdf_backup/ with timestamp # Files are saved to pdf_backup/ with timestamp
@@ -744,7 +922,7 @@ class LabelPrinterApp(App):
# Get the most recently created PDF file # Get the most recently created PDF file
pdf_filename = max(pdf_files, key=os.path.getctime) pdf_filename = max(pdf_files, key=os.path.getctime)
if success: if all_success:
# Log the successful print action # Log the successful print action
self.log_print_action(article, nr_art, serial, printer, pdf_filename or "unknown", True) self.log_print_action(article, nr_art, serial, printer, pdf_filename or "unknown", True)
@@ -753,7 +931,7 @@ class LabelPrinterApp(App):
# Use Clock.schedule_once to update UI from main thread # Use Clock.schedule_once to update UI from main thread
Clock.schedule_once(lambda dt: popup.dismiss(), 0) Clock.schedule_once(lambda dt: popup.dismiss(), 0)
Clock.schedule_once(lambda dt: self.show_popup("Success", "Label printed successfully!", auto_dismiss_after=3), 0.1) Clock.schedule_once(lambda dt: self.show_popup("Success", f"{count} label(s) printed successfully!", auto_dismiss_after=3), 0.1)
else: else:
# Log the failed print action # Log the failed print action
self.log_print_action(article, nr_art, serial, printer, pdf_filename or "unknown", False) self.log_print_action(article, nr_art, serial, printer, pdf_filename or "unknown", False)

288
print_label.py
View File

@@ -3,6 +3,7 @@ import barcode
from barcode.writer import ImageWriter from barcode.writer import ImageWriter
import time import time
import os import os
import sys
import datetime import datetime
import platform import platform
import subprocess import subprocess
@@ -173,7 +174,14 @@ def create_label_image(text):
# Resize barcode to fit in row width # Resize barcode to fit in row width
barcode_width = label_width - left_margin - 10 barcode_width = label_width - left_margin - 10
barcode_height = row_height - 25 barcode_height = row_height - 25
barcode_resized = barcode_img.resize((barcode_width, barcode_height), Image.LANCZOS) # Use high-quality resampling for crisp barcodes
try:
# Try newer Pillow API first
from PIL.Image import Resampling
barcode_resized = barcode_img.resize((barcode_width, barcode_height), Resampling.LANCZOS)
except (ImportError, AttributeError):
# Fallback for older Pillow versions
barcode_resized = barcode_img.resize((barcode_width, barcode_height), Image.LANCZOS)
label_img.paste(barcode_resized, (left_margin, row_y + 20)) label_img.paste(barcode_resized, (left_margin, row_y + 20))
else: else:
# Fallback: show value as text # Fallback: show value as text
@@ -194,13 +202,14 @@ def create_label_image(text):
return label_img return label_img
def create_label_pdf(text): def create_label_pdf(text, svg_template=None):
""" """
Create a high-quality PDF label with 3 rows: label + barcode for each field. Create a high-quality PDF label with 3 rows: label + barcode for each field.
PDFs are saved to the pdf_backup folder. PDFs are saved to the pdf_backup folder.
Args: Args:
text (str): Combined text in format "article;nr_art;serial" or single value text (str): Combined text in format "article;nr_art;serial" or single value
svg_template (str): Path to specific SVG template to use (optional)
Returns: Returns:
str: Path to the generated PDF file str: Path to the generated PDF file
@@ -221,11 +230,17 @@ def create_label_pdf(text):
timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S") timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
pdf_filename = os.path.join(pdf_backup_dir, f"final_label_{timestamp}.pdf") pdf_filename = os.path.join(pdf_backup_dir, f"final_label_{timestamp}.pdf")
# Check for default SVG template # Use SVG template for customizable layout
svg_template = None if svg_template is None or not os.path.exists(svg_template):
default_svg = os.path.join('conf', 'label_template.svg') # Try default templates
if os.path.exists(default_svg): default_svg = os.path.join('conf', 'label_template.svg')
svg_template = default_svg if os.path.exists(default_svg):
svg_template = default_svg
print(f"Using SVG template: {default_svg}")
else:
print("SVG template not found, using fallback PDF generation")
else:
print(f"Using SVG template: {svg_template}")
# Check for default image path # Check for default image path
image_path = os.path.join('conf', 'accepted.png') image_path = os.path.join('conf', 'accepted.png')
@@ -233,9 +248,94 @@ def create_label_pdf(text):
return generator.create_label_pdf(article, nr_art, serial, pdf_filename, image_path, svg_template) return generator.create_label_pdf(article, nr_art, serial, pdf_filename, image_path, svg_template)
def configure_printer_quality(printer_name, width_mm=35, height_mm=25):
"""
Configure printer for high quality label printing (Windows only).
Sets paper size, orientation, and QUALITY settings.
Args:
printer_name (str): Name of the printer
width_mm (int): Label width in millimeters (default 35)
height_mm (int): Label height in millimeters (default 25)
Returns:
bool: True if successful
"""
if SYSTEM != "Windows" or not WIN32_AVAILABLE:
return False
try:
import win32print
import pywintypes
hprinter = win32print.OpenPrinter(printer_name)
try:
# Get current printer properties
props = win32print.GetPrinter(hprinter, 2)
devmode = props.get("pDevMode")
if devmode is None:
print("Could not get printer DEVMODE")
return False
# CRITICAL: Set print quality to HIGHEST
# This prevents dotted/pixelated text
try:
devmode.PrintQuality = 600 # 600 DPI (high quality)
except:
try:
devmode.PrintQuality = 4 # DMRES_HIGH
except:
pass
# Set custom paper size
try:
devmode.PaperSize = 256 # DMPAPER_USER (custom size)
devmode.PaperLength = height_mm * 10 # Height in 0.1mm units
devmode.PaperWidth = width_mm * 10 # Width in 0.1mm units
except:
pass
# Set orientation to landscape
try:
devmode.Orientation = 2 # Landscape
except:
pass
# Set additional quality settings
try:
devmode.Color = 1 # Monochrome for labels
except:
pass
try:
devmode.TTOption = 2 # DMTT_BITMAP - print TrueType as graphics (sharper)
except:
pass
# Apply settings
try:
props["pDevMode"] = devmode
win32print.SetPrinter(hprinter, 2, props, 0)
print(f"Printer configured: {width_mm}x{height_mm}mm @ HIGH QUALITY")
return True
except Exception as set_err:
print(f"Could not apply printer settings: {set_err}")
return False
finally:
win32print.ClosePrinter(hprinter)
except Exception as e:
print(f"Could not configure printer quality: {e}")
return False
def print_to_printer(printer_name, file_path): def print_to_printer(printer_name, file_path):
""" """
Print file to printer (cross-platform). Print file to printer (cross-platform).
Uses SumatraPDF for silent printing on Windows.
Args: Args:
printer_name (str): Name of printer or "PDF" for PDF output printer_name (str): Name of printer or "PDF" for PDF output
@@ -258,66 +358,145 @@ def print_to_printer(printer_name, file_path):
return True return True
elif SYSTEM == "Windows": elif SYSTEM == "Windows":
# Windows: Print PDF using various methods # Windows: Print PDF silently without any viewer opening
try: try:
if WIN32_AVAILABLE:
import win32print
import win32api
if file_path.endswith('.pdf'): if file_path.endswith('.pdf'):
# Method 1: Try SumatraPDF for best silent printing # Try silent printing methods (no viewer opens)
sumatra_paths = [ import os
os.path.join(os.path.dirname(os.path.abspath(__file__)), 'conf', 'SumatraPDF.exe'), import winreg
os.path.join(os.path.dirname(os.path.abspath(__file__)), 'conf', 'SumatraPDF-portable.exe'),
printed = False
# Method 1: SumatraPDF (bundled inside exe or external)
sumatra_paths = []
# Get the directory where this script/exe is running
if getattr(sys, 'frozen', False):
# Running as compiled executable
# PyInstaller extracts bundled files to sys._MEIPASS temp folder
if hasattr(sys, '_MEIPASS'):
# Check bundled version first (inside the exe)
bundled_sumatra = os.path.join(sys._MEIPASS, 'SumatraPDF.exe')
sumatra_paths.append(bundled_sumatra)
# Also check app directory for external version
app_dir = os.path.dirname(sys.executable)
sumatra_paths.append(os.path.join(app_dir, "SumatraPDF", "SumatraPDF.exe"))
sumatra_paths.append(os.path.join(app_dir, "SumatraPDF.exe"))
else:
# Running as script - check local folders
app_dir = os.path.dirname(os.path.abspath(__file__))
sumatra_paths.append(os.path.join(app_dir, "SumatraPDF", "SumatraPDF.exe"))
sumatra_paths.append(os.path.join(app_dir, "SumatraPDF.exe"))
sumatra_paths.append(os.path.join(app_dir, "conf", "SumatraPDF.exe"))
# Then check system installations
sumatra_paths.extend([
r"C:\Program Files\SumatraPDF\SumatraPDF.exe", r"C:\Program Files\SumatraPDF\SumatraPDF.exe",
r"C:\Program Files (x86)\SumatraPDF\SumatraPDF.exe", r"C:\Program Files (x86)\SumatraPDF\SumatraPDF.exe",
os.path.expandvars(r"%LOCALAPPDATA%\SumatraPDF\SumatraPDF.exe"), ])
]
sumatra_found = False
for sumatra_path in sumatra_paths: for sumatra_path in sumatra_paths:
if os.path.exists(sumatra_path): if os.path.exists(sumatra_path):
sumatra_found = True
try: try:
# Use SumatraPDF silent printing with high quality settings # Use noscale with paper size specification for thermal printers
# noscale = print at actual size without scaling # Format: "noscale,paper=<size>" where paper size matches PDF (35mm x 25mm)
# landscape = force landscape orientation for 35x25mm labels # SumatraPDF will use the PDF's page size when noscale is used
# Note: SumatraPDF uses printer driver's quality settings
subprocess.run([ subprocess.run([
sumatra_path, sumatra_path,
'-print-to', printer_name, "-print-to",
'-silent', printer_name,
'-print-settings', 'noscale,landscape', file_path,
file_path "-print-settings",
], check=True, creationflags=subprocess.CREATE_NO_WINDOW) "noscale", # Preserve exact PDF page dimensions
"-silent",
"-exit-when-done"
], check=False, creationflags=subprocess.CREATE_NO_WINDOW)
print(f"Label sent to printer via SumatraPDF: {printer_name}") print(f"Label sent to printer via SumatraPDF: {printer_name}")
return True print(f"Note: Printer '{printer_name}' should be configured for 35mm x 25mm labels")
except Exception as sumatra_err: printed = True
print(f"SumatraPDF print failed: {sumatra_err}")
break break
except Exception as e:
print(f"SumatraPDF error: {e}")
# Method 2: Use ShellExecute with printto (requires default PDF viewer) # Method 2: Adobe Reader silent printing
if not sumatra_found or WIN32_AVAILABLE: if not printed:
try: adobe_path = None
import win32api for key_path in [
win32api.ShellExecute( r"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\AcroRd32.exe",
0, "printto", file_path, r"SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\Acrobat.exe"
f'"{printer_name}"', ".", 0 ]:
)
print(f"Label sent to printer via ShellExecute: {printer_name}")
return True
except Exception as shell_err:
print(f"ShellExecute print failed: {shell_err}")
# Method 3: Open PDF with default viewer (last resort)
try: try:
os.startfile(file_path, "print") key = winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, key_path)
print(f"Opened PDF for printing: {file_path}") adobe_path, _ = winreg.QueryValueEx(key, "")
print("Please close the PDF viewer after printing.") winreg.CloseKey(key)
return True break
except Exception as startfile_err: except:
print(f"Could not open PDF: {startfile_err}") pass
print("PDF saved as backup only")
return True if adobe_path and os.path.exists(adobe_path):
try:
subprocess.run([
adobe_path,
"/t", # Print and close
file_path,
printer_name
], check=False, creationflags=subprocess.CREATE_NO_WINDOW)
print(f"Label sent to printer via Adobe Reader: {printer_name}")
printed = True
except:
pass
# Method 3: GhostScript (if installed)
if not printed:
gs_paths = [
r"C:\Program Files\gs\gs10.02.1\bin\gswin64c.exe",
r"C:\Program Files (x86)\gs\gs10.02.1\bin\gswin32c.exe",
]
# Try to find gswin in PATH
try:
gs_result = subprocess.run(['where', 'gswin64c'],
capture_output=True, text=True, check=False)
if gs_result.returncode == 0:
gs_paths.insert(0, gs_result.stdout.strip().split('\n')[0])
except:
pass
for gs_path in gs_paths:
if os.path.exists(gs_path):
try:
subprocess.run([
gs_path,
"-dNOPAUSE", "-dBATCH", "-dQUIET",
f"-sDEVICE=mswinpr2",
f"-sOutputFile=%printer%{printer_name}",
file_path
], check=False, creationflags=subprocess.CREATE_NO_WINDOW)
print(f"Label sent to printer via GhostScript: {printer_name}")
printed = True
break
except:
pass
if not printed:
# Fallback: Let user know and save PDF
print("=" * 60)
print("NOTICE: Silent PDF printing requires SumatraPDF")
print("SumatraPDF not found (should be bundled inside the app)")
print("If you built the app yourself, ensure SumatraPDF.exe is downloaded first.")
print("=" * 60)
print(f"PDF saved to: {file_path}")
print("The PDF can be printed manually.")
return True
else: else:
# Non-PDF files: print silently with notepad # Non-PDF files
subprocess.run(['notepad', '/p', file_path], subprocess.run(['notepad', '/p', file_path],
check=False, check=False,
creationflags=subprocess.CREATE_NO_WINDOW) creationflags=subprocess.CREATE_NO_WINDOW)
print(f"Label sent to printer: {printer_name}") print(f"Label sent to printer: {printer_name}")
return True return True
@@ -343,7 +522,7 @@ def print_to_printer(printer_name, file_path):
return True return True
def print_label_standalone(value, printer, preview=0, use_pdf=True): def print_label_standalone(value, printer, preview=0, use_pdf=True, svg_template=None):
""" """
Print a label with the specified text on the specified printer. Print a label with the specified text on the specified printer.
Always generates a PDF backup in pdf_backup and prints that PDF. Always generates a PDF backup in pdf_backup and prints that PDF.
@@ -353,6 +532,7 @@ def print_label_standalone(value, printer, preview=0, use_pdf=True):
printer (str): The name of the printer to use printer (str): The name of the printer to use
preview (int): 0 = no preview, 1-3 = 3s preview, >3 = 5s preview preview (int): 0 = no preview, 1-3 = 3s preview, >3 = 5s preview
use_pdf (bool): False to also generate a PNG if PDF generation fails use_pdf (bool): False to also generate a PNG if PDF generation fails
svg_template (str): Path to specific SVG template to use (optional)
Returns: Returns:
bool: True if printing was successful, False otherwise bool: True if printing was successful, False otherwise
@@ -370,7 +550,7 @@ def print_label_standalone(value, printer, preview=0, use_pdf=True):
# Always generate a PDF backup and print that PDF for verification # Always generate a PDF backup and print that PDF for verification
try: try:
pdf_file = create_label_pdf(value) pdf_file = create_label_pdf(value, svg_template)
if pdf_file and os.path.exists(pdf_file): if pdf_file and os.path.exists(pdf_file):
print(f"PDF label created: {pdf_file}") print(f"PDF label created: {pdf_file}")
print(f"PDF backup saved to: {pdf_file}") print(f"PDF backup saved to: {pdf_file}")

132
print_label_pdf.py
View File

@@ -38,17 +38,19 @@ except (ImportError, OSError) as e:
class PDFLabelGenerator: class PDFLabelGenerator:
"""Generate high-quality PDF labels with image and text""" """Generate high-quality PDF labels with image and text"""
def __init__(self, label_width=3.5, label_height=2.5, dpi=600): def __init__(self, label_width=3.5, label_height=2.5, dpi=1200):
""" """
Initialize PDF label generator. Initialize PDF label generator.
Args: Args:
label_width (float): Width in cm (default 3.5 cm = 35mm) label_width (float): Width in cm (default 3.5 cm = 35mm)
label_height (float): Height in cm (default 2.5 cm = 25mm) label_height (float): Height in cm (default 2.5 cm = 25mm)
dpi (int): DPI for image rendering (default 600 for high quality print) dpi (int): DPI for image rendering (default 1200 for high quality thermal printer)
""" """
self.label_width = label_width * cm self.label_width = label_width * cm
self.label_height = label_height * cm self.label_height = label_height * cm
# Force landscape: ensure width > height
self.page_size = landscape((self.label_height, self.label_width)) if self.label_width > self.label_height else (self.label_width, self.label_height)
self.dpi = dpi self.dpi = dpi
self.margin = 1 * mm # Minimal margin self.margin = 1 * mm # Minimal margin
@@ -68,9 +70,11 @@ class PDFLabelGenerator:
try: try:
img = Image.open(image_path) img = Image.open(image_path)
# Convert to RGB if needed # Convert to RGB for best quality (don't use grayscale)
if img.mode not in ['RGB', 'L']: if img.mode != 'RGB':
img = img.convert('RGB') img = img.convert('RGB')
# Set DPI information for high-quality output
img.info['dpi'] = (self.dpi, self.dpi)
return img return img
except Exception as e: except Exception as e:
print(f"Image loading error: {e}") print(f"Image loading error: {e}")
@@ -130,42 +134,25 @@ class PDFLabelGenerator:
else: else:
pdf_output = tempfile.NamedTemporaryFile(suffix='.pdf', delete=False).name pdf_output = tempfile.NamedTemporaryFile(suffix='.pdf', delete=False).name
# Try svglib first (more portable, no external dependencies) # Use cairosvg FIRST as it handles fonts and complex SVGs better
if SVG_AVAILABLE:
try:
drawing = svg2rlg(temp_svg_path)
if drawing:
# Render at original size - quality depends on PDF rendering
# The PDF will contain vector graphics for sharp output
renderPDF.drawToFile(drawing, pdf_output)
# Clean up temp SVG
try:
os.remove(temp_svg_path)
except:
pass
if filename:
return pdf_output
else:
with open(pdf_output, 'rb') as f:
pdf_bytes = f.read()
os.remove(pdf_output)
return pdf_bytes
except Exception as svg_err:
print(f"svglib conversion failed: {svg_err}, trying cairosvg...")
# Fallback: Try cairosvg (requires system Cairo library)
if CAIROSVG_AVAILABLE: if CAIROSVG_AVAILABLE:
try: try:
# Render at high DPI for sharp output print("Converting SVG to PDF using CairoSVG (high quality)...")
cairosvg.svg2pdf(url=temp_svg_path, write_to=pdf_output, dpi=self.dpi) # CRITICAL: Let CairoSVG read dimensions from SVG file (width="35mm" height="25mm")
# DO NOT specify output_width/output_height as they control raster size, not PDF page size
# The SVG already has the correct dimensions, just render at high DPI
cairosvg.svg2pdf(
url=temp_svg_path,
write_to=pdf_output,
dpi=300 # High DPI for sharp output, page size comes from SVG
)
# Clean up temp SVG # Clean up temp SVG
try: try:
os.remove(temp_svg_path) os.remove(temp_svg_path)
except: except:
pass pass
print(f"✅ PDF created from SVG template: {pdf_output}")
if filename: if filename:
return pdf_output return pdf_output
else: else:
@@ -174,9 +161,54 @@ class PDFLabelGenerator:
os.remove(pdf_output) os.remove(pdf_output)
return pdf_bytes return pdf_bytes
except Exception as cairo_err: except Exception as cairo_err:
print(f"CairoSVG conversion failed: {cairo_err}") print(f"CairoSVG conversion failed: {cairo_err}, trying svglib...")
print("SVG conversion failed. svglib and cairosvg both unavailable or failed.") # Fallback: Try svglib (generates many warnings but works)
if SVG_AVAILABLE:
try:
print("Converting SVG to PDF using svglib (fallback)...")
drawing = svg2rlg(temp_svg_path)
if drawing:
# CRITICAL: Force exact label dimensions (35mm x 25mm landscape)
# Convert to points: 1mm = 2.834645669 points
from reportlab.lib.units import mm
from reportlab.pdfgen import canvas as pdf_canvas
target_width = 35 * mm
target_height = 25 * mm
# Scale drawing to exact size
if drawing.width > 0 and drawing.height > 0:
scale_x = target_width / drawing.width
scale_y = target_height / drawing.height
drawing.width = target_width
drawing.height = target_height
drawing.scale(scale_x, scale_y)
# Create PDF with explicit landscape page size
c = pdf_canvas.Canvas(pdf_output, pagesize=(target_width, target_height))
c.setPageCompression(0) # No compression for quality
renderPDF.draw(drawing, c, 0, 0)
c.save()
# Clean up temp SVG
try:
os.remove(temp_svg_path)
except:
pass
print(f"✅ PDF created from SVG template: {pdf_output}")
if filename:
return pdf_output
else:
with open(pdf_output, 'rb') as f:
pdf_bytes = f.read()
os.remove(pdf_output)
return pdf_bytes
except Exception as svg_err:
print(f"svglib conversion failed: {svg_err}")
print("❌ SVG conversion failed. Both cairosvg and svglib unavailable or failed.")
return None return None
except Exception as e: except Exception as e:
@@ -226,11 +258,15 @@ class PDFLabelGenerator:
else: else:
pdf_buffer = io.BytesIO() pdf_buffer = io.BytesIO()
# Create canvas with label dimensions # Create canvas with label dimensions - explicitly landscape
c = canvas.Canvas(pdf_buffer, pagesize=(self.label_width, self.label_height)) c = canvas.Canvas(pdf_buffer, pagesize=self.page_size)
# Set higher resolution for better quality # CRITICAL: Disable compression for maximum print quality
c.setPageCompression(1) # Enable compression c.setPageCompression(0) # Disable compression for best quality
# Set high resolution for crisp output on thermal printers
# Page size already set to landscape orientation
c._pagesize = self.page_size
# Calculate dimensions # Calculate dimensions
usable_width = self.label_width - 2 * self.margin usable_width = self.label_width - 2 * self.margin
@@ -257,11 +293,11 @@ class PDFLabelGenerator:
temp_img_path = temp_img_file.name temp_img_path = temp_img_file.name
temp_img_file.close() temp_img_file.close()
# Convert to grayscale for black and white # Keep as RGB for better quality (thermal printers handle conversion)
img_bw = img.convert('L') # Save at high DPI for sharp output
img_bw.save(temp_img_path, 'PNG') img.save(temp_img_path, 'PNG', dpi=(self.dpi, self.dpi), optimize=False)
# Draw image maintaining aspect ratio # Draw image maintaining aspect ratio with high quality
c.drawImage( c.drawImage(
temp_img_path, temp_img_path,
image_x, image_x,
@@ -269,7 +305,8 @@ class PDFLabelGenerator:
width=image_width, width=image_width,
height=image_height, height=image_height,
preserveAspectRatio=True, preserveAspectRatio=True,
anchor='c' anchor='c',
mask='auto' # Better quality rendering
) )
# Clean up # Clean up
@@ -291,10 +328,15 @@ class PDFLabelGenerator:
else: else:
text = f"{label_name} -" text = f"{label_name} -"
# Use appropriate font size to fit (6pt = ~2.1mm height) # IMPROVED: Larger font size for better readability (8pt = ~2.8mm height)
font_size = 6 # This is critical for thermal printers - text must be crisp and readable
font_size = 8
c.setFont("Helvetica-Bold", font_size) c.setFont("Helvetica-Bold", font_size)
# Enable text rendering mode for crisp output
c.setStrokeColorRGB(0, 0, 0)
c.setFillColorRGB(0, 0, 0)
try: try:
c.drawString(text_area_x, y_position, text) c.drawString(text_area_x, y_position, text)
except Exception as e: except Exception as e:

2
requirements_windows.txt
View File

@@ -1,6 +1,6 @@
python-barcode python-barcode
pillow pillow
kivy>=2.1.0 kivy>=2.3.0
reportlab reportlab
pyinstaller>=6.0.0 pyinstaller>=6.0.0
pywin32 pywin32

63
test_conf_generation.py Normal file
View File

@@ -0,0 +1,63 @@
"""
Test script to verify conf folder auto-generation
Run this to test that conf/ folder is created with default templates
"""
import os
import shutil
# Temporarily rename existing conf folder to test auto-generation
if os.path.exists('conf'):
print("Backing up existing conf folder to conf_backup...")
if os.path.exists('conf_backup'):
shutil.rmtree('conf_backup')
shutil.move('conf', 'conf_backup')
print("✓ Existing conf folder backed up")
print("\nTesting conf folder auto-generation...")
print("Starting label_printer_gui initialization...")
# Import the app (this will trigger initialization)
from label_printer_gui import LabelPrinterApp
# Create app instance (will auto-create conf folder)
app = LabelPrinterApp()
# Check if conf folder was created
if os.path.exists('conf'):
print("\n✓ SUCCESS: conf folder created")
# Check for required files
required_files = [
'conf/app.conf',
'conf/label_template.svg',
'conf/label_template_ok.svg',
'conf/label_template_nok.svg'
]
missing_files = []
for file in required_files:
if os.path.exists(file):
print(f" ✓ {file}")
else:
print(f" ✗ {file} MISSING")
missing_files.append(file)
if not missing_files:
print("\n✓ All required files created successfully!")
else:
print(f"\n✗ Missing files: {missing_files}")
else:
print("\n✗ FAILED: conf folder not created")
# Restore original conf folder
print("\nRestoring original conf folder...")
if os.path.exists('conf_backup'):
if os.path.exists('conf'):
shutil.rmtree('conf')
shutil.move('conf_backup', 'conf')
print("✓ Original conf folder restored")
print("\n" + "="*50)
print("Test complete!")
print("="*50)