mirror of https://github.com/dredx/prole.git synced 2026-09-23 12:03:59 +00:00

chrisfu 55b6a6aff3 Complete rebranding from prole to knoe and fix macOS application identity. Bulk renamed 'prole' to 'knoe' across code, scripts, and manifests. Updated Makefile with 'knoe', 'build', and 'start' targets. Implemented macOS Application Bundle (.app) support for correct identity. Fixed macOS 'Python' process name to 'Knoe.DB Installer' via Objective-C bridge. Standardized application name to 'Knoe.DB Installer' across all interfaces.

Co-authored-by: Junie <junie@jetbrains.com>

2026-04-22 15:08:35 -07:00

6.6 KiB

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Image Resource Management

Overview

The Knoe Database Installer includes multiple image assets that need to work both when running from source and when packaged as a standalone binary. This document explains how image resources are managed.

Image Assets

The following images are included in the installer:

Primary Assets

knoeIcon.png (1,494,782 bytes) - Application icon
knoeLogo.png (2,190,703 bytes) - Main Knoe logo
knoeLogoSepia.png (2,657,956 bytes) - Sepia-toned background logo
knoeLogoBlueprint.png (3,107,147 bytes) - Blueprint style logo
knoeIconblueprint.png (1,570,109 bytes) - Blueprint style icon

Supplementary Assets

knoe-type.gif (599 bytes) - Small typing animation

Resource Path Resolution

The Challenge

When packaging Python applications with PyInstaller, resource files need to be found in two different scenarios:

Development: Running from source, files are in PROJECT_ROOT/img/
Production: Running from bundle, files are in PyInstaller's temporary extraction directory

The Solution

The get_resource_path() function automatically resolves paths correctly in both scenarios:

def get_resource_path(relative_path):
    """Get absolute path to resource, works for dev and for PyInstaller."""
    try:
        # PyInstaller creates a temp folder and stores path in _MEIPASS
        base_path = Path(sys._MEIPASS)
    except AttributeError:
        # Running from source
        base_path = PROJECT_ROOT

    return base_path / relative_path

Usage

All image loading code uses this function:

# Instead of:
bg_path = Path('img/knoeLogoSepia.png')

# Use:
bg_path = get_resource_path('img/knoeLogoSepia.png')

Implementation Details

Modified Code Locations

The following locations in install.py were updated to use get_resource_path():

Background logo loading (line ~191)

bg_path = get_resource_path('img/knoeLogoSepia.png')

Application icon candidates (line ~406)

img_candidates = [
    get_resource_path('img/knoeIcon.png'),
    get_resource_path('img/knoe-type.png'),
    get_resource_path('img/knoe-type.gif'),
    get_resource_path('img/Knoe.png'),
    get_resource_path('img/knoeLogoSepia.png'),
]

DMG background image (line ~3820)

bg_img = get_resource_path('img/knoeLogoSepia.png')

PyInstaller Configuration

The installer.spec file includes the entire img/ directory in the bundle:

datas = [
    ('installer', 'installer'),
    ('conf', 'conf'),
    ('etc', 'etc'),
    ('img', 'img'),  # All images included
    ('docs', 'docs'),
]

This ensures all images are:

Copied into the PyInstaller bundle
Extracted to the temporary directory at runtime
Accessible via sys._MEIPASS / 'img' / filename

Testing

Verify Resource Paths

Run the test script:

python3 test_resource_paths.py

This tests:

Path resolution from source
Path resolution simulating PyInstaller environment
Existence of all image files

Expected output:

✓ App icon
✓ Background logo (sepia)
✓ Main logo
✓ Blueprint logo
✓ Blueprint icon

✓ All tests passed!
Images will be correctly included in PyInstaller build.

Manual Testing

From source:

python3 install.py --gui
# Check that logo appears in background

From built binary:

make package
./dist/Knoe\ Installer.app/Contents/MacOS/knoe-installer --gui
# Check that logo appears in background

Icon Formats

PNG (Source)

Format: PNG with transparency
Resolution: 1024x1024 recommended
Location: img/knoeIcon.png

ICNS (macOS Bundle)

Generated by build system from PNG
Contains multiple resolutions (16x16 through 1024x1024)
Location: build/knoe.icns (intermediate), embedded in .app bundle
Generated by: make build/knoe.icns

The build system automatically converts PNG to ICNS using macOS tools:

sips -z 512 512 img/knoeIcon.png --out build/icon.iconset/icon_512x512.png
iconutil -c icns build/icon.iconset -o build/knoe.icns

Background Image Usage

The GUI installer uses knoeLogoSepia.png as a subtle background:

Loading: Image loaded via PIL (Pillow)
Processing:
- Converted to RGBA
- Blended with white background at 15% opacity
- Creates subtle watermark effect
Rendering:
- Scaled to fill canvas
- Maintains aspect ratio
- Centered on canvas

Code snippet:

bg_path = get_resource_path('img/knoeLogoSepia.png')
if bg_path.exists():
    original = Image.open(str(bg_path)).convert('RGBA')
    white_bg = Image.new('RGBA', original.size, (255, 255, 255, 255))
    self._bg_pil = Image.blend(white_bg, original, 0.15)

Adding New Images

To add new image resources:

Add image file to img/ directory

Update code to use get_resource_path():

new_img = get_resource_path('img/new_image.png')

No spec changes needed - entire img/ directory is already included
Test with python3 test_resource_paths.py

Troubleshooting

Image Not Found in Built Binary

Symptom: Image loads from source but not from built .app

Cause: Path hardcoded instead of using get_resource_path()

Solution:

# Wrong:
img_path = PROJECT_ROOT / 'img' / 'logo.png'

# Correct:
img_path = get_resource_path('img/logo.png')

Image Not Showing in GUI

Cause: File doesn't exist or wrong path

Solution: Check with test script:

python3 test_resource_paths.py

Build Size Too Large

Cause: Large images included in bundle