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| # Copyright (C) 2021-2024, Mindee. | |
| # This program is licensed under the Apache License 2.0. | |
| # See LICENSE or go to <https://opensource.org/licenses/Apache-2.0> for full license details. | |
| import logging | |
| import platform | |
| from typing import Optional | |
| from PIL import ImageFont | |
| __all__ = ["get_font"] | |
| def get_font(font_family: Optional[str] = None, font_size: int = 13) -> ImageFont.ImageFont: | |
| """Resolves a compatible ImageFont for the system | |
| Args: | |
| ---- | |
| font_family: the font family to use | |
| font_size: the size of the font upon rendering | |
| Returns: | |
| ------- | |
| the Pillow font | |
| """ | |
| # Font selection | |
| if font_family is None: | |
| try: | |
| font = ImageFont.truetype("FreeMono.ttf" if platform.system() == "Linux" else "Arial.ttf", font_size) | |
| except OSError: | |
| font = ImageFont.load_default() | |
| logging.warning( | |
| "unable to load recommended font family. Loading default PIL font," | |
| "font size issues may be expected." | |
| "To prevent this, it is recommended to specify the value of 'font_family'." | |
| ) | |
| else: | |
| font = ImageFont.truetype(font_family, font_size) | |
| return font | |