steven
b3cd115bd9
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纸白底改冷调与主色同轴；语义色 sage/wheat/rust 不变，sky 提亮与主色区分。Logo 三段线改浅蓝白、圆点改亮蓝；favicon/PWA 图标/安卓自适应图标/状态栏一并重绘，新增 tools/make-icons.py 作为唯一出处。
77 lines
2.6 KiB
Python
77 lines
2.6 KiB
Python
"""按 Web Logo（icons.tsx 的 <Logo/>）重绘 PWA 图标：景泰蓝底 + 三条浅蓝白线 + 一点亮蓝。
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用法：python tools/make-icons.py
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输出覆盖 web/public/icons/*.png（与 SVG 同一套比例：64 画布，rx=18，线宽 4，点半径 6）。
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"""
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from __future__ import annotations
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from pathlib import Path
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from PIL import Image, ImageDraw
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ROOT = Path(__file__).resolve().parents[1]
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OUT = ROOT / "web" / "public" / "icons"
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BG = "#274B73"
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LINE = "#EAF3FB"
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DOT = "#5CA8E8"
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SS = 8 # 超采样倍数，边缘才不毛
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def draw(size: int, *, rounded: bool, inset: float = 0.0) -> Image.Image:
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"""在 size×size 上画 logo。inset 是安全区留白比例（maskable 图标要留）。"""
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big = size * SS
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img = Image.new("RGBA", (big, big), (0, 0, 0, 0))
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d = ImageDraw.Draw(img)
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if rounded:
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d.rounded_rectangle([0, 0, big - 1, big - 1], radius=big * 18 / 64, fill=BG)
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else:
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d.rectangle([0, 0, big, big], fill=BG)
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# 64 画布坐标 → 像素；inset 让图形整体缩小居中（给 maskable 留安全区）
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scale = big / 64 * (1 - 2 * inset)
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off = big * inset
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def box(x: float, y: float) -> tuple[float, float]:
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return off + x * scale, off + y * scale
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stroke = max(1, round(4 * scale))
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for y, x2 in ((23, 46), (32, 37), (41, 30)):
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x1, yy = box(18, y)
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d.line([x1, yy, *box(x2, y)], fill=LINE, width=stroke)
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# 圆头：PIL 的 line 没有 cap，用小圆补两端
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r = stroke / 2
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for cx, cy in ((x1, yy), box(x2, y)):
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d.ellipse([cx - r, cy - r, cx + r, cy + r], fill=LINE)
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cx, cy = box(46, 41)
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r = 6 * scale
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d.ellipse([cx - r, cy - r, cx + r, cy + r], fill=DOT)
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return img.resize((size, size), Image.LANCZOS)
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def main() -> None:
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OUT.mkdir(parents=True, exist_ok=True)
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# 圆角版：favicon 之外的常规 PWA 图标
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draw(192, rounded=True).save(OUT / "icon-192.png")
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draw(512, rounded=True).save(OUT / "icon-512.png")
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# iOS 会自己裁圆角，底图必须是方的
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draw(180, rounded=False).save(OUT / "apple-touch-icon.png")
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# maskable：图形缩进 12% 安全区
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draw(512, rounded=False, inset=0.12).save(OUT / "maskable-512.png")
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# 文档里引用的安卓图标预览
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preview = ROOT / "2.Design" / "screens" / "android-icon-512.png"
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preview.parent.mkdir(parents=True, exist_ok=True)
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draw(512, rounded=True).save(preview)
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for p in sorted(OUT.glob("*.png")):
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print(p.relative_to(ROOT), Image.open(p).size)
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print(preview.relative_to(ROOT), Image.open(preview).size)
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if __name__ == "__main__":
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main()
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