author | Tero Marttila <terom@fixme.fi> |
Fri, 05 Jun 2009 23:42:03 +0300 | |
changeset 76 | e22d9f699081 |
parent 70 | 67dd32adf159 |
child 77 | 2a53c5ade434 |
permissions | -rw-r--r-- |
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""" |
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Per-directory gallery state |
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""" |
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import filesystem, image, html |
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from utils import lazy_load, lazy_load_iter |
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import math |
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class Folder (filesystem.Directory) : |
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""" |
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A Folder is a filesystem Directory that contains any number of other Folders and Images. |
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""" |
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def __init__ (self, *args, **kwargs) : |
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super(Folder, self).__init__(*args, **kwargs) |
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# info |
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self.title = None |
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self.description = None |
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@lazy_load |
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def preview_dir (self) : |
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""" |
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Load and return the Directory for previews |
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""" |
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return self.subdir(self.config.preview_dir, create=True) |
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@lazy_load |
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def thumb_dir (self) : |
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""" |
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Load and return the Directory for thumbs |
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""" |
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return self.subdir(self.config.thumb_dir, create=True) |
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@lazy_load_iter |
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def subnodes (self) : |
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""" |
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Load and return an ordered list of child-Nodes |
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""" |
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return super(Folder, self).subnodes(skip_dotfiles=True, sort=True) |
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@lazy_load_iter |
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def subfolders (self) : |
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""" |
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Load and return an ordered list of sub-Folders |
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""" |
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return (Folder(node) for node in self.subnodes if isinstance(node, filesystem.Directory)) |
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@lazy_load_iter |
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def images (self) : |
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""" |
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Load and return an ordered/linked list of sub-Images |
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""" |
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prev = None |
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for node in self.subnodes : |
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# skip non-relevant ones |
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# XXX: node should need to be a File |
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if not node.is_file() or not self.config.is_image(filesystem.File(node)) : |
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continue |
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# create new |
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img = image.Image(node, prev) |
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# link up |
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if prev : |
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img.prev = prev |
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prev.next = img |
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# yield the linked-up prev |
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yield prev |
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# continue |
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prev = img |
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# and the last one |
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if prev : |
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yield prev |
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@property |
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def page_count (self) : |
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""" |
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Returns the number of pages needed to show this folder's images |
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""" |
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return int(math.ceil(len(self.images) / float(self.config.images_per_page))) |
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def images_for_page (self, page) : |
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""" |
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Returns the list of Images to be displayed for the given page, if any |
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""" |
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# offset to first image |
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offset = page * self.config.images_per_page |
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# slice |
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return self.images[offset : offset + self.config.images_per_page] |
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def html_file (self, page=0) : |
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""" |
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Returns the File representing the .html for the given page |
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""" |
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if page : |
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return self.subfile("index_%d.html" % page) |
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else : |
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return self.subfile("index.html") |
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def index (self) : |
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""" |
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Recursively index this Folder, yielding a series of all Folder objects inside. |
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XXX: not used |
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""" |
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# and subfolders |
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for subfolder in self.subfolders : |
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yield subfolder |
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for item in subfolder.index_subfolders() : |
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yield item |
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