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69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
"""
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MapCSS scheme creation.
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"""
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from pathlib import Path
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from typing import Dict, List
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import logging
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from colour import Color
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from roentgen.grid import IconCollection
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from roentgen.icon import ShapeExtractor
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from roentgen.scheme import Scheme
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def construct_selectors(scheme: Scheme, icon_directory_name: str) -> str:
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"""
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Construct icon selectors for MapCSS 0.2 scheme.
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"""
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selectors: Dict[str, List[str]] = {}
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for matcher in scheme.node_matchers:
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if matcher.shapes and not matcher.location_restrictions:
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# TODO: support location restrictions
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selectors[matcher.get_mapcss_selector()] = [
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(x if isinstance(x, str) else x["shape"])
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for x in matcher.shapes
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]
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s: str = ""
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for selector in selectors:
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for target in ["node", "area"]:
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s += (
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target + selector + " {\n"
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f' icon-image: "{icon_directory_name}/'
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+ "___".join(selectors[selector])
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+ '.svg";\n}\n'
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)
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return s
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def write_mapcss() -> None:
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"""
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Write MapCSS 0.2 scheme.
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"""
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icon_directory_name: str = "icons"
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out_path: Path = Path("out")
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directory: Path = out_path / "roentgen_icons_mapcss"
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directory.mkdir(exist_ok=True)
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icons_with_outline_path: Path = directory / icon_directory_name
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icons_with_outline_path.mkdir(parents=True, exist_ok=True)
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scheme: Scheme = Scheme(Path("scheme/default.yml"))
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extractor: ShapeExtractor = ShapeExtractor(
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Path("icons/icons.svg"), Path("icons/config.json")
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)
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collection: IconCollection = IconCollection.from_scheme(scheme, extractor)
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collection.draw_icons(
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icons_with_outline_path, color=Color("black"), outline=True
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)
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with Path("data/roentgen_icons_part.mapcss").open() as input_file:
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header = input_file.read()
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with (directory / "roentgen_icons.mapcss").open("w+") as output_file:
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output_file.write(header)
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output_file.write("\n")
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output_file.write(construct_selectors(scheme, icon_directory_name))
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logging.info(f"MapCSS 0.2 scheme is written to {directory}.")
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