c7edc30b79
- colour theme implemented. ThemeService based global switching for future light detection triggers - test flipflop service for various fun - navigator widget class with state switching
129 lines
3.6 KiB
Python
129 lines
3.6 KiB
Python
#!/usr/bin/env python3
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"""Theme generator for Smart Serow Flutter UI.
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Reads navigator from config, loads corresponding theme JSON,
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and generates app_colors.dart with the colour palette.
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Fallback chain: {navigator}.json -> default.json -> hardcoded defaults
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"""
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import json
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import sys
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from pathlib import Path
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SCRIPT_DIR = Path(__file__).parent.resolve()
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PROJECT_ROOT = SCRIPT_DIR.parent
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UI_DIR = PROJECT_ROOT / "pi" / "ui"
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THEMES_DIR = PROJECT_ROOT / "extra" / "themes"
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CONFIG_FILE = UI_DIR / "config.json"
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OUTPUT_FILE = UI_DIR / "lib" / "theme" / "app_colors.dart"
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# Hardcoded fallback if no theme files exist at all
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HARDCODED_THEME = {
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"dark": {
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"background": "#000000",
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"foreground": "#FFFFFF",
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"highlight": "#FF5555",
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"subdued": "#808080",
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},
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"bright": {
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"background": "#F0F0F0",
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"foreground": "#1A1A1A",
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"highlight": "#CC0000",
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"subdued": "#606060",
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},
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}
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def hex_to_flutter(hex_color: str) -> str:
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"""Convert #RRGGBB to 0xFFRRGGBB format."""
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hex_clean = hex_color.lstrip("#").upper()
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return f"0xFF{hex_clean}"
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def load_config() -> dict:
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"""Load UI config, return empty dict if missing."""
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if CONFIG_FILE.exists():
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with open(CONFIG_FILE) as f:
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return json.load(f)
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return {}
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def load_theme(navigator: str) -> dict:
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"""Load theme for navigator with fallback chain."""
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# Try navigator-specific theme
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nav_theme = THEMES_DIR / f"{navigator}.json"
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if nav_theme.exists():
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print(f" Using theme: {nav_theme.name}")
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with open(nav_theme) as f:
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return json.load(f)
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# Try default theme
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default_theme = THEMES_DIR / "default.json"
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if default_theme.exists():
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print(f" Fallback to: default.json")
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with open(default_theme) as f:
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return json.load(f)
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# Last resort: hardcoded
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print(f" Using hardcoded defaults")
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return HARDCODED_THEME
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def generate_dart(theme: dict) -> str:
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"""Generate Dart source from theme dict."""
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dark = theme["dark"]
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bright = theme["bright"]
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return f'''import 'package:flutter/material.dart';
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/// Auto-generated from theme config. Do not edit manually.
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/// Run scripts/generate_theme.py to regenerate.
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class AppColors {{
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AppColors._();
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// Dark theme (low ambient light)
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static const darkBackground = Color({hex_to_flutter(dark["background"])});
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static const darkForeground = Color({hex_to_flutter(dark["foreground"])});
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static const darkHighlight = Color({hex_to_flutter(dark["highlight"])});
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static const darkSubdued = Color({hex_to_flutter(dark["subdued"])});
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// Bright theme (high ambient light)
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static const brightBackground = Color({hex_to_flutter(bright["background"])});
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static const brightForeground = Color({hex_to_flutter(bright["foreground"])});
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static const brightHighlight = Color({hex_to_flutter(bright["highlight"])});
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static const brightSubdued = Color({hex_to_flutter(bright["subdued"])});
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}}
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'''
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def main():
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print("=== Theme Generation ===")
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# Get navigator from config
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config = load_config()
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navigator = config.get("navigator", "default")
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print(f" Navigator: {navigator}")
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# Load theme
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theme = load_theme(navigator)
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# Generate Dart
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dart_source = generate_dart(theme)
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# Ensure output directory exists
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OUTPUT_FILE.parent.mkdir(parents=True, exist_ok=True)
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# Write output
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with open(OUTPUT_FILE, "w") as f:
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f.write(dart_source)
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print(f" Generated: {OUTPUT_FILE.relative_to(PROJECT_ROOT)}")
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return True
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if __name__ == "__main__":
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success = main()
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sys.exit(0 if success else 1)
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