hallo knut

tools/make_icons.py

@@ -0,0 +1,53 @@
+"""Generates the PWA icons. Run: python3 tools/make_icons.py"""
+
+import os
+
+from PIL import Image, ImageDraw
+
+BG = (14, 14, 17, 255)
+GREY = (139, 139, 150, 255)
+RED = (255, 59, 48, 255)
+WHITE = (242, 242, 245, 255)
+
+OUT_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "icons")
+SS = 4  # supersampling factor for smooth edges
+
+
+def make_icon(size, content_scale):
+    s = size * SS
+    img = Image.new("RGBA", (s, s), BG)
+    d = ImageDraw.Draw(img)
+
+    cx = cy = s / 2
+    r = s * content_scale / 2
+    width = int(s * 0.072)
+    box = [cx - r, cy - r, cx + r, cy + r]
+
+    # grey arc = pause (270 deg), red arc = training (90 deg)
+    d.arc(box, start=-90, end=180, fill=GREY, width=width)
+    d.arc(box, start=180, end=270, fill=RED, width=width)
+
+    # clock hand pointing up
+    hand_w = int(s * 0.05)
+    d.line([(cx, cy), (cx, cy - r * 0.58)], fill=WHITE, width=hand_w)
+    dot = hand_w * 0.9
+    d.ellipse([cx - dot, cy - dot, cx + dot, cy + dot], fill=WHITE)
+
+    return img.resize((size, size), Image.Resampling.LANCZOS)
+
+
+def main():
+    os.makedirs(OUT_DIR, exist_ok=True)
+    targets = [
+        ("icon-192.png", 192, 0.78),
+        ("icon-512.png", 512, 0.78),
+        ("icon-maskable-512.png", 512, 0.60),
+    ]
+    for name, size, scale in targets:
+        path = os.path.join(OUT_DIR, name)
+        make_icon(size, scale).save(path, "PNG")
+        print("wrote", path)
+
+
+if __name__ == "__main__":
+    main()