张宗平
05a685c952
- calculator_designer_ext（Day2 增强版：表达式求值 + 括号，递归下降解析器）接入 cmake - calculator_mainwindow（Day3 上午）：增强版计算器装进 QMainWindow， 菜单/状态栏/历史停靠窗，纯代码 + 显式 connect，与 mainwindow_showcase 形成坑卡对照 - calculator_mainwindow_qss（Day3 下午）：上午版 + QSS 双主题美化（按键分色/伪状态/深浅切换） - 验证 mainwindow_showcase（QMainWindow 六大组件综合演示，.ui + .qrc） - OUTLINE_4DAY.md / ASSIGNMENTS.md Day3 衔接增强版起点 + 参考实现指引 - 补提交 Day2 calculator/ 与 calculator_designer/ 参考实现（CMakeLists 已引用） - 全量构建 28/28，4 目标离屏自测退出码 0 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
84 lines
2.8 KiB
Python
84 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""生成 qt_mainwindow_showcase 所需的极简 PNG 图标。
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仅用 Python 标准库（zlib + struct）手写最小 PNG 编码器，无第三方依赖。
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幂等：重复运行覆盖生成相同文件。
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python gen_icons.py # *nix / 已配置 py 启动器的 Windows
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py gen_icons.py # Windows 官方 py 启动器
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"""
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import os
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import struct
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import zlib
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HERE = os.path.dirname(os.path.abspath(__file__))
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ICONS_DIR = os.path.join(HERE, "icons")
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# 5×7 点阵字模（"1" = 前景白色像素）
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GLYPHS = {
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"M": ["10001", "11011", "10101", "10001", "10001", "10001", "10001"],
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"N": ["10001", "11001", "10101", "10011", "10001", "10001", "10001"],
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"Q": ["01110", "10001", "10001", "10001", "10101", "10011", "01111"],
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"A": ["01110", "10001", "10001", "11111", "10001", "10001", "10001"],
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"D": ["11110", "10001", "10001", "10001", "10001", "10001", "11110"],
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}
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def write_png(path, width, height, rgb_rows):
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"""写一张 8 位、颜色类型 2（RGB）的 PNG。rgb_rows: 每行 width*3 个 0-255 整数。"""
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def chunk(tag, data):
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body = tag + data
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return (struct.pack(">I", len(data)) + body +
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struct.pack(">I", zlib.crc32(body) & 0xffffffff))
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sig = b"\x89PNG\r\n\x1a\n"
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ihdr = struct.pack(">IIBBBBB", width, height, 8, 2, 0, 0, 0)
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raw = b"".join(b"\x00" + bytes(row) for row in rgb_rows) # 每行前加 filter byte(0)
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idat = zlib.compress(raw, 9)
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with open(path, "wb") as f:
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f.write(sig + chunk(b"IHDR", ihdr) + chunk(b"IDAT", idat) + chunk(b"IEND", b""))
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def make_icon(size, bg, letter):
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"""生成 size×size 的像素矩阵：纯色背景 + 居中白色字母。"""
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glyph = GLYPHS[letter]
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bw, bh = 5, 7
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pix = 1 if size <= 16 else 2 # 16px 用 1:1 字模，32px 放大 2 倍
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gw, gh = bw * pix, bh * pix
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ox = (size - gw) // 2
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oy = (size - gh) // 2
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rows = []
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for y in range(size):
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row = []
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for x in range(size):
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gx, gy = (x - ox) // pix, (y - oy) // pix
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if 0 <= gx < bw and 0 <= gy < bh and glyph[gy][gx] == "1":
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row.extend((255, 255, 255))
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else:
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row.extend(bg)
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rows.append(row)
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return rows
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# (文件名, 尺寸, 背景色 RGB, 字母)
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SPECS = [
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("app.png", 32, (30, 80, 180), "M"),
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("new.png", 16, (40, 150, 70), "N"),
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("quit.png", 16, (200, 50, 50), "Q"),
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("about.png", 16, (220, 140, 30), "A"),
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("dock.png", 16, (130, 60, 180), "D"),
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]
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def main():
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os.makedirs(ICONS_DIR, exist_ok=True)
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for name, size, bg, letter in SPECS:
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write_png(os.path.join(ICONS_DIR, name), size, size, make_icon(size, bg, letter))
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print(f"wrote {name} ({size}x{size})")
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print(f"done -> {ICONS_DIR}")
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if __name__ == "__main__":
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main()
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