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Add SVG image support (#4922)

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guillempages 2023-06-11 23:36:37 +02:00 committed by GitHub
parent 5f0892dec4
commit c74105aad7
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1 changed files with 32 additions and 21 deletions
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53
esphome/components/image/__init__.py
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@ -199,6 +199,27 @@ IMAGE_SCHEMA = cv.Schema(
CONFIG_SCHEMA = cv.All(font.validate_pillow_installed, IMAGE_SCHEMA) CONFIG_SCHEMA = cv.All(font.validate_pillow_installed, IMAGE_SCHEMA)
def load_svg_image(file: str, resize: tuple[int, int]):
from PIL import Image
# This import is only needed in case of SVG images; adding it
# to the top would force configurations not using SVG to also have it
# installed for no reason.
from cairosvg import svg2png
if resize:
req_width, req_height = resize
svg_image = svg2png(
url=file,
output_width=req_width,
output_height=req_height,
)
else:
svg_image = svg2png(url=file)
return Image.open(io.BytesIO(svg_image))
async def to_code(config): async def to_code(config):
from PIL import Image from PIL import Image
@ -206,30 +227,20 @@ async def to_code(config):
if conf_file[CONF_SOURCE] == SOURCE_LOCAL: if conf_file[CONF_SOURCE] == SOURCE_LOCAL:
path = CORE.relative_config_path(conf_file[CONF_PATH]) path = CORE.relative_config_path(conf_file[CONF_PATH])
try:
image = Image.open(path)
except Exception as e:
raise core.EsphomeError(f"Could not load image file {path}: {e}")
if CONF_RESIZE in config:
image.thumbnail(config[CONF_RESIZE])
elif conf_file[CONF_SOURCE] == SOURCE_MDI: elif conf_file[CONF_SOURCE] == SOURCE_MDI:
# Those imports are only needed in case of MDI images; adding them path = _compute_local_icon_path(conf_file).as_posix()
# to the top would force configurations not using MDI to also have them
# installed for no reason.
from cairosvg import svg2png
svg_file = _compute_local_icon_path(conf_file) try:
if CONF_RESIZE in config: resize = config.get(CONF_RESIZE)
req_width, req_height = config[CONF_RESIZE] if path.lower().endswith(".svg"):
svg_image = svg2png( image = load_svg_image(path, resize)
url=svg_file.as_posix(),
output_width=req_width,
output_height=req_height,
)
else: else:
svg_image = svg2png(url=svg_file.as_posix()) image = Image.open(path)
if resize:
image = Image.open(io.BytesIO(svg_image)) image.thumbnail(resize)
except Exception as e:
raise core.EsphomeError(f"Could not load image file {path}: {e}")
width, height = image.size width, height = image.size