构建初始UI界面
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""提取工程 UI 源码中字符串字面量里的非 ASCII 字符（实际显示的汉字），
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输出 <仓库根>/ui_cn_chars.txt，供 make_font.py 生成中文字体子集。
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用法（在仓库根目录执行，或任意目录均可，脚本自动定位仓库根）：
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python tools/font_gen/extract_cn.py
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"""
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import os
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import glob
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ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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UI_DIR = os.path.join(ROOT, 'Drivers', 'BSP', 'UI')
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TASK_DIR = os.path.join(ROOT, 'App', 'task')
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SCAN = (glob.glob(os.path.join(UI_DIR, '*.c')) +
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glob.glob(os.path.join(UI_DIR, '*.h')) +
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[os.path.join(TASK_DIR, 'ui_task.c'), os.path.join(TASK_DIR, 'ui_task.h')])
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def collect(text):
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"""跳过 /* */ 与 // 注释、字符常量，只收集双引号字符串内的非 ASCII 字符。"""
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out, i, n = set(), 0, len(text)
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blk = line = sstr = cchr = False
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while i < n:
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c = text[i]
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nx = text[i + 1] if i + 1 < n else ''
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if blk:
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if c == '*' and nx == '/':
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blk = False
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i += 2
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continue
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i += 1
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continue
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if line:
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if c == '\n':
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line = False
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i += 1
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continue
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if sstr:
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if c == '\\':
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i += 2
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continue
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if c == '"':
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sstr = False
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i += 1
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continue
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if ord(c) > 0x7F:
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out.add(c)
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i += 1
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continue
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if cchr:
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if c == '\\':
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i += 2
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continue
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if c == "'":
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cchr = False
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i += 1
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continue
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if c == '/' and nx == '*':
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blk = True
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i += 2
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continue
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if c == '/' and nx == '/':
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line = True
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i += 2
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continue
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if c == '"':
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sstr = True
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i += 1
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continue
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if c == "'":
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cchr = True
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i += 1
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continue
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i += 1
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return out
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def main():
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chars = set()
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for f in SCAN:
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if not os.path.exists(f):
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print(' skip (not found):', os.path.relpath(f, ROOT))
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continue
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chars |= collect(open(f, encoding='utf-8-sig', errors='ignore').read())
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s = ''.join(sorted(chars))
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out_path = os.path.join(ROOT, 'ui_cn_chars.txt')
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with open(out_path, 'w', encoding='utf-8') as fp:
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fp.write(s)
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print('scanned %d files; unique non-ASCII chars: %d' % (len(SCAN), len(s)))
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print('->', out_path)
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if __name__ == '__main__':
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main()
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""生成中文子集位图字体 ui_font_cn_12.c（LVGL 格式，输出到 Drivers/BSP/UI/）。
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前置依赖：
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npm i -g lv_font_conv # 离线 TTF/OTF -> LVGL 字体 转换器
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pip install fonttools # 仅当字体源是 .ttc 集合时需要（用于抽取单字重）
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用法：
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python tools/font_gen/make_font.py # 默认：宋体, 12px, 1bpp
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python tools/font_gen/make_font.py --bpp 2 # 宋体细笔画发虚时改用 2bpp
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python tools/font_gen/make_font.py --font C:/path/to/font.ttf
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"""
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import os
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import sys
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import argparse
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import tempfile
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import subprocess
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ROOT = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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OUT = os.path.join(ROOT, 'Drivers', 'BSP', 'UI', 'ui_font_cn_12.c')
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CHARS_FILE = os.path.join(ROOT, 'ui_cn_chars.txt')
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FONT_NAME = 'ui_font_cn_12'
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def resolve_lv_font_conv():
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# 1) 全局 node 模块路径（npm i -g）
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try:
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groot = subprocess.check_output(['npm', 'root', '-g'], text=True).strip()
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p = os.path.join(groot, 'lv_font_conv', 'lv_font_conv.js')
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if os.path.exists(p):
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return ['node', p]
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except Exception:
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pass
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# 2) PATH 上的可执行
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for cmd in ('lv_font_conv.cmd', 'lv_font_conv'):
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if subprocess.run(['where', cmd], capture_output=True, shell=True).returncode == 0:
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return [cmd]
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sys.exit('ERROR: 找不到 lv_font_conv。请先执行: npm i -g lv_font_conv')
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def resolve_font(path):
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if path:
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if not os.path.exists(path):
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sys.exit('ERROR: --font 指定的文件不存在: ' + path)
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return path
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# 默认字体：Windows 宋体集合 simsun.ttc（lv_font_conv 不支持 .ttc，需先抽取 face0）
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ttc = r'C:\Windows\Fonts\simsun.ttc'
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if os.path.exists(ttc):
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try:
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from fontTools.ttLib import TTCollection
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coll = TTCollection(ttc)
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tmp = os.path.join(tempfile.gettempdir(), 'simsun_regular.ttf')
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coll.fonts[0].save(tmp)
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print('extracted SimSun regular (face0) ->', tmp)
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return tmp
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except Exception as e:
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sys.exit('ERROR: 抽取 simsun.ttc 失败，请 pip install fonttools，或用 --font 指定 ttf: ' + str(e))
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sys.exit('ERROR: 未找到 C:\\Windows\\Fonts\\simsun.ttc，请用 --font 指定字体 ttf/otf 路径')
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def main():
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ap = argparse.ArgumentParser()
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ap.add_argument('--bpp', type=int, default=1, help='字体位深 1/2/3（默认 1）')
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ap.add_argument('--size', type=int, default=12, help='字号（默认 12）')
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ap.add_argument('--font', default=None, help='自定义字体 ttf/otf 路径（默认宋体）')
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args = ap.parse_args()
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if not os.path.exists(CHARS_FILE):
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sys.exit('ERROR: 请先运行 extract_cn.py 生成 ui_cn_chars.txt')
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chars = open(CHARS_FILE, encoding='utf-8').read().strip()
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cmd = resolve_lv_font_conv()
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font = resolve_font(args.font)
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cmd += ['--font', font,
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'--size', str(args.size),
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'--bpp', str(args.bpp),
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'-r', '0x20-0x7E', # 含 ASCII，使字体自包含
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'--symbols', chars, # 本工程实际显示的汉字子集
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'--no-compress', # 关闭 RLE 压缩，保证兼容
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'--format', 'lvgl',
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'--lv-font-name', FONT_NAME,
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'-o', OUT]
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print('RUN:', ' '.join(cmd))
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r = subprocess.run(cmd)
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if r.returncode != 0:
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sys.exit('FAILED rc=%d' % r.returncode)
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print('OK %d bytes -> %s' % (os.path.getsize(OUT), OUT))
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if __name__ == '__main__':
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main()
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