from PIL import Image
import os

# 图片路径
input_path = r"e:\project\flutter\f3\flutter_application_2\assets\IMG_20260402_172628.png"
output_dir = r"e:\project\flutter\f3\flutter_application_2\assets"

# 打开图片
img = Image.open(input_path)
print(f"原始图片尺寸: {img.size}")
print(f"原始图片模式: {img.mode}")

# 定义需要的尺寸（应用图标和启动图常见尺寸）
sizes = [
    (1024, 1024),  # iOS/macOS 主图标
    (512, 512),    # 大图标
    (256, 256),    # 中图标
    (128, 128),    # 小图标
    (64, 64),      # 更小图标
    (192, 192),    # Android mipmap-xxhdpi
    (144, 144),    # Android mipmap-xxxhdpi (96x1.5)
    (96, 96),      # Android mipmap-xhdpi
    (72, 72),      # Android mipmap-hdpi
    (48, 48),      # Android mipmap-mdpi
    (216, 216),    # HarmonyOS icon_xlarge
    (144, 144),    # HarmonyOS icon_large
    (96, 96),      # HarmonyOS icon
    (72, 72),      # HarmonyOS icon_small
]

# 裁剪为正方形（居中裁剪）
width, height = img.size
min_size = min(width, height)
left = (width - min_size) // 2
top = (height - min_size) // 2
right = left + min_size
bottom = top + min_size
square_img = img.crop((left, top, right, bottom))
print(f"裁剪后正方形尺寸: {square_img.size}")

# 保存正方形原图
square_path = os.path.join(output_dir, "app_icon_square.png")
square_img.save(square_path, "PNG")
print(f"保存正方形原图: {square_path}")

# 生成各种尺寸
for size in sizes:
    resized = square_img.resize(size, Image.Resampling.LANCZOS)
    output_path = os.path.join(output_dir, f"app_icon_{size[0]}x{size[1]}.png")
    resized.save(output_path, "PNG")
    print(f"保存: {output_path}")

# 保存为项目默认图标
default_icon_path = os.path.join(output_dir, "app_icon_default.png")
default_size = (512, 512)
default_img = square_img.resize(default_size, Image.Resampling.LANCZOS)
default_img.save(default_icon_path, "PNG")
print(f"\n保存项目默认图标: {default_icon_path}")
print("完成!")