dekun
113 lines
3.5 KiB
Python
113 lines
3.5 KiB
Python
#!/usr/bin/env python3
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"""生成品牌 PNG/ICO（Pillow），供 Chrome 快捷方式与 manifest 使用。"""
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from __future__ import annotations
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import os
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import shutil
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REPO = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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OUT = os.path.join(REPO, "brand", "icons")
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BG = (12, 16, 25, 255)
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PANEL = (20, 27, 45, 255)
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CYAN = (34, 211, 238, 255)
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GREEN = (52, 211, 153, 255)
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RED = (248, 113, 113, 255)
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def _lerp(c1: tuple[int, ...], c2: tuple[int, ...], t: float) -> tuple[int, int, int, int]:
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t = max(0.0, min(1.0, t))
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return tuple(int(c1[i] + (c2[i] - c1[i]) * t) for i in range(4)) # type: ignore
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def _rounded_rect(draw, box, radius: int, fill) -> None:
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draw.rounded_rectangle(box, radius=radius, fill=fill)
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def render_icon(size: int):
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from PIL import Image, ImageDraw
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img = Image.new("RGBA", (size, size), (0, 0, 0, 0))
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draw = ImageDraw.Draw(img)
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m = max(6, size // 12)
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r = max(8, size // 6)
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_rounded_rect(draw, (m, m, size - m, size - m), r, BG)
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inner = m + max(2, size // 28)
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_rounded_rect(draw, (inner, inner, size - inner, size - inner), max(6, r - 4), PANEL)
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# 渐变描边（四角采样）
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border = max(2, size // 42)
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for i in range(border):
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t0 = i / max(1, border - 1)
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for x in range(inner, size - inner):
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t = (x - inner) / max(1, size - 2 * inner)
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col = _lerp(CYAN, GREEN, (t + t0) * 0.5)
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draw.point((x, inner + i), fill=col)
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draw.point((x, size - inner - 1 - i), fill=col)
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for y in range(inner, size - inner):
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t = (y - inner) / max(1, size - 2 * inner)
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col = _lerp(CYAN, GREEN, (t + t0) * 0.5)
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draw.point((inner + i, y), fill=col)
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draw.point((size - inner - 1 - i, y), fill=col)
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def sx(v: float) -> int:
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return int(v * size / 512)
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def sy(v: float) -> int:
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return int(v * size / 512)
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# 趋势线
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pts = [(120, 320), (200, 248), (280, 272), (392, 168)]
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scaled = [(sx(x), sy(y)) for x, y in pts]
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draw.line(scaled, fill=CYAN, width=max(2, size // 26), joint="curve")
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ex, ey = scaled[-1]
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draw.ellipse(
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(ex - size // 28, ey - size // 28, ex + size // 28, ey + size // 28),
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fill=GREEN,
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)
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# 蜡烛
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def candle(cx, top, bottom, body_top, body_bottom, color):
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w = max(1, size // 64)
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bh = max(2, size // 32)
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draw.line((cx, top, cx, bottom), fill=color, width=w)
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draw.rounded_rectangle(
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(cx - bh, body_top, cx + bh, body_bottom),
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radius=max(1, bh // 3),
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fill=color,
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)
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candle(sx(182), sy(248), sy(340), sy(268), sy(332), RED)
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candle(sx(282), sy(200), sy(340), sy(220), sy(316), GREEN)
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return img
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def main() -> None:
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from PIL import Image
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os.makedirs(OUT, exist_ok=True)
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shutil.copy2(os.path.join(REPO, "brand", "icon.svg"), os.path.join(OUT, "icon.svg"))
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sizes = [16, 32, 48, 180, 192, 512]
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images: dict[int, Image.Image] = {}
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for sz in sizes:
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im = render_icon(sz)
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images[sz] = im
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name = "apple-touch-icon.png" if sz == 180 else f"icon-{sz}.png"
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im.save(os.path.join(OUT, name), format="PNG", optimize=True)
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ico_sizes = [16, 32, 48]
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ico_imgs = [images[s] for s in ico_sizes]
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ico_imgs[0].save(
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os.path.join(OUT, "favicon.ico"),
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format="ICO",
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sizes=[(s, s) for s in ico_sizes],
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append_images=ico_imgs[1:],
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)
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print(f"DONE {OUT}")
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if __name__ == "__main__":
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main()
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