93 lines
2.7 KiB
Python
93 lines
2.7 KiB
Python
"""Minimal PDF table export with Cyrillic support (fpdf2 + system fonts)."""
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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 typing import Any, Sequence
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from fpdf import FPDF
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_FONT_CANDIDATES = (
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Path("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"),
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Path("/usr/share/fonts/TTF/DejaVuSans.ttf"),
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Path("C:/Windows/Fonts/arial.ttf"),
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Path("C:/Windows/Fonts/Arial.ttf"),
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Path(os.environ.get("WINDIR", "C:/Windows")) / "Fonts" / "arial.ttf",
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)
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def _resolve_font_path() -> str:
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for candidate in _FONT_CANDIDATES:
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if candidate.exists():
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return str(candidate)
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raise RuntimeError("PDF font not found (install fonts-dejavu-core or use Windows Arial)")
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def _truncate(text: Any, max_len: int) -> str:
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value = str(text if text is not None else "")
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if len(value) <= max_len:
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return value
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return value[: max(0, max_len - 1)] + "…"
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def build_table_pdf(
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*,
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title: str,
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subtitle_lines: Sequence[str] | None = None,
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headers: Sequence[str],
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rows: Sequence[Sequence[Any]],
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footer_lines: Sequence[str] | None = None,
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) -> bytes:
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font_path = _resolve_font_path()
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pdf = FPDF(orientation="P", unit="mm", format="A4")
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pdf.set_auto_page_break(auto=True, margin=15)
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pdf.add_page()
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pdf.add_font("DocFont", "", font_path)
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pdf.set_font("DocFont", size=14)
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effective_width = pdf.w - pdf.l_margin - pdf.r_margin
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pdf.cell(effective_width, 8, _truncate(title, 120), new_x="LMARGIN", new_y="NEXT", align="C")
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pdf.ln(2)
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if subtitle_lines:
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pdf.set_font("DocFont", size=10)
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for line in subtitle_lines:
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if line:
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pdf.multi_cell(effective_width, 5, _truncate(line, 200))
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pdf.ln(2)
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col_count = len(headers)
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if col_count == 0:
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col_count = 1
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page_width = effective_width
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col_width = page_width / col_count
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pdf.set_font("DocFont", size=9)
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for header in headers:
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pdf.cell(col_width, 7, _truncate(header, 40), border=1, align="C")
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pdf.ln()
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pdf.set_font("DocFont", size=9)
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if rows:
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for row in rows:
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for value in row:
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pdf.cell(col_width, 6, _truncate(value, 48), border=1)
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pdf.ln()
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else:
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pdf.cell(page_width, 8, "Нет данных за выбранный период", border=1, align="C")
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pdf.ln()
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if footer_lines:
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pdf.ln(4)
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pdf.set_font("DocFont", size=10)
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for line in footer_lines:
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if line:
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pdf.multi_cell(effective_width, 5, _truncate(line, 200))
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out = pdf.output()
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if isinstance(out, bytearray):
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return bytes(out)
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if isinstance(out, bytes):
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return out
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return str(out).encode("latin-1")
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