24 lines
992 B
Python
24 lines
992 B
Python
"""嵌入可用的 CJK TrueType 字体，找不到时保留可移植的 CID 字体回退。"""
|
|
import os
|
|
from pathlib import Path
|
|
from reportlab.pdfbase import pdfmetrics
|
|
from reportlab.pdfbase.ttfonts import TTFont
|
|
from reportlab.pdfbase.cidfonts import UnicodeCIDFont
|
|
|
|
def register_font():
|
|
"""按显式配置、系统字体、Linux 字体的顺序注册 PDF 中文字体。"""
|
|
candidates = [os.getenv('APP_EXPORT_FONT',''),
|
|
str(Path(os.getenv('WINDIR','C:/Windows'))/'Fonts/simsun.ttc'),
|
|
'/usr/share/fonts/truetype/arphic/uming.ttc']
|
|
for candidate in candidates:
|
|
if candidate and Path(candidate).is_file():
|
|
try:
|
|
pdfmetrics.registerFont(TTFont('NotesExportCJK',candidate,subfontIndex=0))
|
|
return 'NotesExportCJK', Path(candidate)
|
|
except Exception:
|
|
continue
|
|
pdfmetrics.registerFont(UnicodeCIDFont('STSong-Light'))
|
|
return 'STSong-Light', None
|
|
|
|
FONT, FONT_PATH = register_font()
|