将所有的美西螈图标换为下界之星

tools/icon_work/process.py

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+
+from PIL import Image
+import os
+
+src = r"C:\Users\28579\Downloads\resources\resources\netherstar.png"
+out_dir = r"D:\Project\Starlight_Lancher\tools\icon_work"
+os.makedirs(out_dir, exist_ok=True)
+
+img = Image.open(src).convert("RGBA")
+print("原图:", img.size)
+
+alpha = img.getchannel("A")
+bbox = alpha.getbbox()
+print("内容 bbox:", bbox)
+cropped = img.crop(bbox)
+print("裁剪后:", cropped.size)
+
+cw, ch = cropped.size
+
+# 方案A: contain, 保比例居中
+scale = 1024 / max(cw, ch)
+nw, nh = round(cw*scale), round(ch*scale)
+ra = cropped.resize((nw, nh), Image.LANCZOS)
+ca = Image.new("RGBA", (1024, 1024), (0, 0, 0, 0))
+ca.paste(ra, ((1024-nw)//2, (1024-nh)//2), ra)
+pa = os.path.join(out_dir, "square_contain.png")
+ca.save(pa)
+print("A contain:", pa, (nw, nh))
+
+# 方案B: cover, 占满并裁切
+sb = 1024 / min(cw, ch)
+bw, bh = round(cw*sb), round(ch*sb)
+rb = cropped.resize((bw, bh), Image.LANCZOS)
+left, top = (bw-1024)//2, (bh-1024)//2
+cb = rb.crop((left, top, left+1024, top+1024))
+pb = os.path.join(out_dir, "square_cover.png")
+cb.save(pb)
+print("B cover:", pb, (bw, bh))