Source code for large_image_source_pil.girder_source

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import cherrypy
from girder_large_image.constants import PluginSettings
from girder_large_image.girder_tilesource import GirderTileSource

from girder.models.setting import Setting
from large_image.cache_util import methodcache
from large_image.constants import TILE_FORMAT_PIL
from large_image.exceptions import TileSourceError

from . import PILFileTileSource


[docs]class PILGirderTileSource(PILFileTileSource, GirderTileSource): """ Provides tile access to Girder items with a PIL file. """ # Cache size is based on what the class needs, which does not include # individual tiles cacheName = 'tilesource' name = 'pil'
[docs] def defaultMaxSize(self): return int(Setting().get( PluginSettings.LARGE_IMAGE_MAX_SMALL_IMAGE_SIZE))
[docs] @staticmethod def getLRUHash(*args, **kwargs): return GirderTileSource.getLRUHash(*args, **kwargs) + ',%s' % (str( kwargs.get('maxSize', args[1] if len(args) >= 2 else None)))
[docs] def getState(self): return super().getState() + ',' + str( self._maxSize)
[docs] @methodcache() def getTile(self, x, y, z, pilImageAllowed=False, numpyAllowed=False, mayRedirect=False, **kwargs): if z != 0: raise TileSourceError('z layer does not exist') if x != 0: raise TileSourceError('x is outside layer') if y != 0: raise TileSourceError('y is outside layer') if (mayRedirect and not pilImageAllowed and not numpyAllowed and cherrypy.request and self._pilFormatMatches(self._pilImage, mayRedirect, **kwargs)): url = '%s/api/v1/file/%s/download' % ( cherrypy.request.base, self.item['largeImage']['fileId']) raise cherrypy.HTTPRedirect(url) return self._outputTile(self._pilImage, TILE_FORMAT_PIL, x, y, z, pilImageAllowed, numpyAllowed, **kwargs)