04/16 Upload codebase

extension/make_icons.py

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+"""
+Generate PassKeeper extension icons (16×16, 48×48, 128×128 PNG).
+
+Requires Pillow (already a project dependency via qrcode[pil]):
+    python extension/make_icons.py
+"""
+import os
+import math
+from PIL import Image, ImageDraw
+
+SIZES     = [16, 48, 128]
+OUT_DIR   = os.path.join(os.path.dirname(__file__), 'icons')
+BG_COLOR  = '#1a73e8'   # Google-blue background
+FG_COLOR  = '#ffffff'   # White lock
+
+
+def draw_icon(size: int) -> Image.Image:
+    img  = Image.new('RGBA', (size, size), (0, 0, 0, 0))
+    draw = ImageDraw.Draw(img)
+
+    # Rounded-rectangle background
+    pad = max(1, size // 10)
+    draw.rounded_rectangle(
+        [pad, pad, size - pad - 1, size - pad - 1],
+        radius=max(2, size // 6),
+        fill=BG_COLOR,
+    )
+
+    # ── Lock body (rectangle with rounded bottom) ──────────────────────────
+    bx = size * 0.28
+    by = size * 0.50
+    bw = size * 0.44
+    bh = size * 0.36
+    draw.rounded_rectangle(
+        [bx, by, bx + bw, by + bh],
+        radius=max(1, int(size * 0.07)),
+        fill=FG_COLOR,
+    )
+
+    # Keyhole
+    kr    = max(1, int(size * 0.07))
+    kx    = size / 2
+    ky    = by + bh * 0.40
+    draw.ellipse([kx - kr, ky - kr, kx + kr, ky + kr], fill=BG_COLOR)
+    # Small stem below the hole
+    stem_w = max(1, int(size * 0.06))
+    draw.rectangle(
+        [kx - stem_w, ky, kx + stem_w, ky + bh * 0.30],
+        fill=BG_COLOR,
+    )
+
+    # ── Shackle (arc) ──────────────────────────────────────────────────────
+    sw   = max(1, int(size * 0.09))   # stroke width
+    slm  = size * 0.28                # left margin of shackle oval
+    srm  = size * 0.72                # right margin
+    st   = size * 0.15               # top of shackle
+    sb   = size * 0.58               # bottom of shackle (overlaps lock body top)
+
+    # Draw as thick arc by layering concentric arcs
+    for offset in range(sw):
+        f = offset / max(sw - 1, 1)
+        draw.arc(
+            [slm + offset, st + offset, srm - offset, sb - offset],
+            start=180, end=0,
+            fill=FG_COLOR,
+            width=1,
+        )
+
+    # Simpler approach: draw white arc with width parameter (Pillow 8+)
+    try:
+        draw.arc(
+            [slm, st, srm, sb],
+            start=180, end=0,
+            fill=FG_COLOR,
+            width=sw,
+        )
+    except TypeError:
+        pass   # older Pillow — arcs from the loop above are sufficient
+
+    return img
+
+
+def main():
+    os.makedirs(OUT_DIR, exist_ok=True)
+    for s in SIZES:
+        path = os.path.join(OUT_DIR, f'icon{s}.png')
+        draw_icon(s).save(path, 'PNG')
+        print(f'  OK  {path}')
+    print('Icons generated.')
+
+
+if __name__ == '__main__':
+    main()