85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
from bs4 import BeautifulSoup
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from PIL import Image
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from functools import cache
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@cache
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def calculate_ratio(path):
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if path.endswith(".svg"):
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ratio = __calculate_svg_ratio(path)
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else:
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ratio = __calculate_bitmap_ratio(path)
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return ratio
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@cache
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def make_rectangle(path, text, rect_stroke, rect_fill, text_fill):
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svg = __svg_text_rectangle(text, rect_stroke, rect_fill, text_fill)
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with open(path, "w", encoding="utf-8") as f:
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f.write(svg)
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@cache
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def make_monochrome_fill_rectangle(path, text):
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svg = __svg_masked_rectangle(text)
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with open(path, "w", encoding="utf-8") as f:
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f.write(svg)
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def __calculate_svg_ratio(path):
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with open(path, "r", encoding="utf-8") as f:
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xml = f.read()
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soup = BeautifulSoup(xml, "xml")
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svg = soup.svg
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if svg.has_attr("width") and svg.has_attr("height"):
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width = float(svg.attrs["width"])
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height = float(svg.attrs["height"])
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ratio = width / height
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elif svg.has_attr("viewBox"):
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_, _, width, height = svg.attrs["viewBox"].split(" ")
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ratio = float(width) / float(height)
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else:
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raise Exception(f"Cannot calculate ratio for SVG\n{svg.prettify()}")
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return ratio
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def __calculate_bitmap_ratio(path):
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img = Image.open(path)
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img_w = img.size[0]
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img_h = img.size[1]
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ratio = img_w / img_h
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return ratio
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def __svg_text_rectangle(text, rect_stroke, rect_fill, text_fill):
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height = 128
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width = len(text) * height
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svg = f"""
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<svg lang='ja' width='{width}' height='{height}' viewBox='0 0 {width} {height}'
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xmlns='http://www.w3.org/2000/svg' version='1.1'>
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<rect width='{width}' height='{height}' ry='20' stroke='{rect_stroke}'
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fill='{rect_fill}' stroke-width='8'/>
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<text text-anchor='middle' x='50%' y='50%' dy='.35em'
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font-family='sans-serif' font-size='100px'
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fill='{text_fill}'>{text}</text>
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</svg>"""
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return svg.strip()
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def __svg_masked_rectangle(text):
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height = 128
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width = len(text) * height
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svg = f"""
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<svg lang='ja' width='{width}' height='{height}' viewBox='0 0 {width} {height}'
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xmlns='http://www.w3.org/2000/svg' version='1.1'>
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<mask id='a'>
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<rect width='{width}' height='{height}' fill='white'/>
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<text text-anchor='middle' x='50%' y='50%' dy='.35em'
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font-family='sans-serif' font-size='100px'
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fill='black'>{text}</text>
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</mask>
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<rect width='{width}' height='{height}' ry='20'
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fill='black' mask='url(#a)'/>
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</svg>"""
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return svg.strip()
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