110 lines
3.3 KiB
Python
110 lines
3.3 KiB
Python
"""Регистрация TTF с кириллицей для reportlab (Linux / macOS / Windows)."""
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from __future__ import annotations
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import os
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from pathlib import Path
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from reportlab.pdfbase import pdfmetrics
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from reportlab.pdfbase.ttfonts import TTFont
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_FONT_REGISTERED = False
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_FONT_BOLD_REGISTERED = False
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_PROJECT_ROOT = Path(__file__).resolve().parents[2]
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def _windows_fonts_dir() -> Path:
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windir = os.environ.get("WINDIR", r"C:\Windows")
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return Path(windir) / "Fonts"
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def _cyrillic_font_candidates(*, bold: bool = False) -> list[Path]:
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bundled = (
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_PROJECT_ROOT / "vendor" / "fonts" / ("DejaVuSans-Bold.ttf" if bold else "DejaVuSans.ttf")
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)
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candidates: list[Path] = [bundled]
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if os.name == "nt":
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win = _windows_fonts_dir()
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if bold:
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candidates.extend(
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[
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win / "arialbd.ttf",
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win / "segoeuib.ttf",
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win / "calibrib.ttf",
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win / "timesbd.ttf",
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]
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)
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else:
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candidates.extend(
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[
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win / "arial.ttf",
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win / "segoeui.ttf",
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win / "calibri.ttf",
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win / "times.ttf",
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]
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)
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if bold:
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candidates.extend(
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[
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Path("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf"),
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Path("/usr/share/fonts/dejavu/DejaVuSans-Bold.ttf"),
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Path("/System/Library/Fonts/Supplemental/Arial Bold.ttf"),
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Path("/Library/Fonts/Arial Bold.ttf"),
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]
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)
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else:
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candidates.extend(
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[
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Path("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"),
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Path("/usr/share/fonts/dejavu/DejaVuSans.ttf"),
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Path("/System/Library/Fonts/Supplemental/Arial Unicode.ttf"),
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Path("/Library/Fonts/Arial Unicode.ttf"),
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Path("/System/Library/Fonts/Supplemental/Arial.ttf"),
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]
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)
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seen: set[str] = set()
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unique: list[Path] = []
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for path in candidates:
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key = str(path).lower()
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if key in seen:
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continue
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seen.add(key)
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unique.append(path)
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return unique
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def register_cyrillic_font() -> str:
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"""Возвращает имя зарегистрированного шрифта reportlab или Helvetica (без кириллицы)."""
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global _FONT_REGISTERED
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if _FONT_REGISTERED:
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return "WespCyr"
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for path in _cyrillic_font_candidates(bold=False):
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if not path.is_file():
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continue
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try:
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pdfmetrics.registerFont(TTFont("WespCyr", str(path)))
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_FONT_REGISTERED = True
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return "WespCyr"
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except Exception:
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continue
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return "Helvetica"
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def register_cyrillic_font_bold() -> str:
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global _FONT_BOLD_REGISTERED
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if _FONT_BOLD_REGISTERED:
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return "WespCyrBold"
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for path in _cyrillic_font_candidates(bold=True):
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if not path.is_file():
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continue
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try:
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pdfmetrics.registerFont(TTFont("WespCyrBold", str(path)))
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_FONT_BOLD_REGISTERED = True
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return "WespCyrBold"
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except Exception:
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continue
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return register_cyrillic_font()
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