author | Tero Marttila <terom@fixme.fi> |
Sun, 14 Jun 2009 18:08:55 +0300 | |
changeset 115 | d5aa320697df |
parent 111 | ecceaf23c969 |
child 118 | 60b126ff0b74 |
permissions | -rw-r--r-- |
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""" |
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Per-image gallery state |
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""" |
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from __future__ import with_statement |
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import filesystem, format, thumbnail |
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from utils import lazy_load |
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Major code restructuring. Version is now 0.5, templates use Mako, and the code is split off into several files under lib/
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import PIL.Image |
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from lib import EXIF |
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class Image (filesystem.File) : |
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""" |
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An Image is a filesystem File that represents an image that can be thumbnailed, and handled. |
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""" |
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def __init__ (self, *args, **kwargs) : |
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""" |
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Initialize as an Image based on the given Node, linked with the given previous node |
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""" |
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super(Image, self).__init__(*args, **kwargs) |
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# links |
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self.prev = None |
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self.next = None |
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# the .html file for this image |
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self.html = self.parent.subfile(self.basename + '.html') |
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# our preview/thumbnail |
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self.preview = thumbnail.Thumbnail(self, self.parent.preview_dir, self.config.preview_size) |
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self.thumb = thumbnail.Thumbnail(self, self.parent.thumb_dir, self.config.thumb_size) |
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# info |
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self.title = self.name |
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self.description = None |
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@lazy_load |
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def img (self) : |
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""" |
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Loads the image as a PIL.Image |
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""" |
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# open it up |
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return PIL.Image.open(self.path) |
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@property |
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def img_size (self) : |
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""" |
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Returns the pixel (width, height) resolution tuple of this image. |
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""" |
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return self.img.size |
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@lazy_load |
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def exif (self) : |
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""" |
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Loads the EXIF data for the image and returns as a dict of EXIF tag names -> values. |
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Returns None if no exif data was found |
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""" |
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# load |
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with self.open('rb') as fh : |
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# XXX: details=False? |
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exif = EXIF.process_file(fh) |
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# empty dict -> no exif data |
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if exif : |
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return exif |
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else : |
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return None |
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@lazy_load |
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def metadata (self) : |
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""" |
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Load and return the metadata for the image as a dictionary |
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""" |
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# load stuff |
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stat = self.stat() |
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# XXX: avoid having to open the image? |
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size = self.img_size |
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# build |
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metadata = dict({ |
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"File name": self.name, |
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"Resolution": "%dx%d" % size, |
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"File size": format.filesize(stat.st_size), |
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"Last modified": format.filetime(stat.st_mtime), |
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}) |
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# optionally load Exif metadata |
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if self.config.exif_enabled : |
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exif = self.exif |
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# Get the wanted tags |
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metadata.update(dict( |
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(name, exif[tag]) for tag, name in self.config.exif_tags if exif and tag in exif |
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)) |
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return metadata |
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def stale (self) : |
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109 |
""" |
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Tests if this Image is stale, based on preview/thumb. |
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111 |
""" |
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112 |
|
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return self.preview.stale() or self.thumb.stale() |
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114 |
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def update (self) : |
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""" |
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Updates this Image's thumb/preview |
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""" |
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119 |
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self.preview.update() |
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self.thumb.update() |
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122 |