feat(h5): refine report layout, add finger-following tabs and optimize images

2026-10-12 22:36:44 +08:00
parent bcf198ca6f
commit 63c9e065a9
22 changed files with 2027 additions and 1535 deletions
@@ -0,0 +1,64 @@
+#!/usr/bin/env python3
+"""Export smaller delivery JPEGs; never overwrite the PSD-derived originals.
+
+Only opaque-on-white product cards are candidates. Other WebPs are already
+smaller than JPEG, and logos/icons/masks need their original transparency.
+"""
+import hashlib
+import io
+import json
+import math
+from pathlib import Path
+
+from PIL import Image, ImageChops, ImageStat
+
+ROOT = Path(__file__).resolve().parents[1]
+DIRECTORY = ROOT / 'h5/assets/img/ui-20261012'
+
+
+def main():
+    assets = []
+    for age in (25, 35, 50):
+        source = DIRECTORY / f'product-{age}.webp'
+        rgba = Image.open(source).convert('RGBA')
+        image = Image.new('RGB', rgba.size, 'white')
+        image.paste(rgba, mask=rgba.getchannel('A'))
+        for quality in (90, 92, 94, 96):
+            buffer = io.BytesIO()
+            image.save(buffer, 'JPEG', quality=quality, subsampling=0,
+                       optimize=True, progressive=True)
+            encoded = buffer.getvalue()
+            decoded = Image.open(io.BytesIO(encoded)).convert('RGB')
+            rms = ImageStat.Stat(ImageChops.difference(image, decoded)).rms
+            mse = sum(value ** 2 for value in rms) / 3
+            psnr = 10 * math.log10(255 ** 2 / mse) if mse else 100
+            if psnr >= 40 and len(encoded) < source.stat().st_size * .9:
+                break
+        else:
+            raise RuntimeError(f'No suitably small high-quality JPEG for {source}')
+        target = source.with_suffix('.jpg')
+        target.write_bytes(encoded)
+        assets.append({
+            'source': str(source.relative_to(ROOT)),
+            'source_sha256': hashlib.sha256(source.read_bytes()).hexdigest(),
+            'source_bytes': source.stat().st_size,
+            'file': str(target.relative_to(ROOT)),
+            'sha256': hashlib.sha256(encoded).hexdigest(),
+            'bytes': len(encoded), 'size': list(image.size),
+            'quality': quality, 'subsampling': 0, 'progressive': True,
+            'matte': '#FFFFFF', 'psnr_db': round(psnr, 2),
+        })
+    manifest = {
+        'description': 'Smaller product-card delivery images. Original PSD crops preserved.',
+        'retained': 'Background/scan WebPs are smaller than JPEG; transparent icons/masks remain PNG.',
+        'assets': assets,
+        'source_bytes': sum(row['source_bytes'] for row in assets),
+        'delivery_bytes': sum(row['bytes'] for row in assets),
+    }
+    destination = ROOT / 'design/ui-20261012/delivery-optimization-20261012.json'
+    destination.write_text(json.dumps(manifest, ensure_ascii=False, indent=2) + '\n', encoding='utf8')
+    print(json.dumps(manifest, ensure_ascii=False, indent=2))
+
+
+if __name__ == '__main__':
+    main()