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65 lines
1.4 KiB
65 lines
1.4 KiB
# Copyright (c) 2010-2022 openpyxl
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from io import BytesIO
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try:
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from PIL import Image as PILImage
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except ImportError:
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PILImage = False
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def _import_image(img):
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if not PILImage:
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raise ImportError('You must install Pillow to fetch image objects')
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if not isinstance(img, PILImage.Image):
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img = PILImage.open(img)
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return img
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class Image(object):
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"""Image in a spreadsheet"""
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_id = 1
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_path = "/xl/media/image{0}.{1}"
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anchor = "A1"
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def __init__(self, img):
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self.ref = img
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mark_to_close = isinstance(img, str)
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image = _import_image(img)
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self.width, self.height = image.size
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try:
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self.format = image.format.lower()
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except AttributeError:
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self.format = "png"
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if mark_to_close:
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# PIL instances created for metadata should be closed.
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image.close()
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def _data(self):
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"""
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Return image data, convert to supported types if necessary
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"""
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img = _import_image(self.ref)
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# don't convert these file formats
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if self.format in ['gif', 'jpeg', 'png']:
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img.fp.seek(0)
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fp = img.fp
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else:
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fp = BytesIO()
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img.save(fp, format="png")
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fp.seek(0)
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data = fp.read()
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fp.close()
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return data
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@property
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def path(self):
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return self._path.format(self._id, self.format)
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