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"""

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    Top-level gallery state

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"""

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import filesystem, folder, resources

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from utils import lazy_load

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class Gallery (filesystem.Root, folder.Folder) :

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    """

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        A Gallery is a single place in the filesystem which acts as a Folder of Images, but had some additional stuff

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    """

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    def __init__ (self, path, config) :

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        """

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            Build a Gallery rooted at the given filesystem path, and using the given user configuration.

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            XXX: replace path with config.gallery_path?

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        """

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        super(Gallery, self).__init__(path, config)

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    @lazy_load

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    def degal_dir (self) :

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        """

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            The dir containing the degal configuration.

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            It will be created if it does not exist.

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        """

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        return self.subdir('.degal', create=True)

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    @lazy_load

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    def stylesheet (self) :

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        """

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            The stylesheet file.

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            It will be copied from internal resources if it does not exist.

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        """

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        stylesheet = self.degal_dir.subfile('style.css')

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        if not stylesheet.exists() :

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            # copy it from resources

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            stylesheet.copy_from(resources.STATIC_DIR.subfile('style.css'))

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        return stylesheet

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    @lazy_load

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    def version (self) :

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        """

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            Return version string

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        """

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        return "???"