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https://github.com/mofeng-git/One-KVM.git
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56 lines
2.6 KiB
Python
56 lines
2.6 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2020 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import sys
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import os
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import io
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import functools
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from PIL import Image as PilImage
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from PIL import ImageDraw as PilImageDraw
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from PIL import ImageFont as PilImageFont
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from ... import aiotools
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# =====
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async def make_text_jpeg(width: int, height: int, quality: int, text: str) -> bytes:
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return (await aiotools.run_async(_inner_make_text_jpeg, width, height, quality, text))
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@functools.lru_cache(maxsize=10)
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def _inner_make_text_jpeg(width: int, height: int, quality: int, text: str) -> bytes:
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image = PilImage.new("RGB", (width, height), color=(0, 0, 0))
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draw = PilImageDraw.Draw(image)
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draw.multiline_text((20, 20), text, font=_get_font(), fill=(255, 255, 255))
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with io.BytesIO() as bio:
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image.save(bio, format="jpeg", quality=quality)
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return bio.getvalue()
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@functools.lru_cache()
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def _get_font() -> PilImageFont.FreeTypeFont:
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module_path = sys.modules[__name__].__file__
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assert module_path is not None
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path = os.path.join(os.path.dirname(module_path), "fonts", "Azbuka04.ttf")
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return PilImageFont.truetype(path, size=20)
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