ó ø¢TQc@s<dZddlmZdefd„ƒYZed„ZdS(sM Utility functions for handling images. Requires PIL, as you might imagine. iÿÿÿÿ(tFilet ImageFilecBsAeZdZd„ZeeƒZd„ZeeƒZd„ZRS(s€ A mixin for use alongside django.core.files.base.File, which provides additional features for dealing with images. cCs|jƒdS(Ni(t_get_image_dimensions(tself((s1../Django//lib/python/django/core/files/images.pyt _get_widthscCs|jƒdS(Ni(R(R((s1../Django//lib/python/django/core/files/images.pyt _get_heightscCsAt|dƒs:|j}|jƒt|d|ƒ|_n|jS(Nt_dimensions_cachetclose(thasattrtclosedtopentget_image_dimensionsR(RR((s1../Django//lib/python/django/core/files/images.pyRs   ( t__name__t __module__t__doc__RtpropertytwidthRtheightR(((s1../Django//lib/python/django/core/files/images.pyR s     cCsyddlm}Wntk r3ddl}nX|jƒ}t|dƒrq|}|jƒ}|jdƒnt|dƒ}t}zWd}xF|j |ƒ}|s«Pn|j |ƒ|j rË|j j S|d}q’dSWd|ró|jƒn |j|ƒXdS( s¯ Returns the (width, height) of an image, given an open file or a path. Set 'close' to True to close the file at the end if it is initially in an open state. iÿÿÿÿ(RNtreaditrbii(tPILRt ImportErrortParserRttelltseekR tTrueRtfeedtimagetsizetNoneR(t file_or_pathRt PILImageFiletptfiletfile_post chunk_sizetdata((s1../Django//lib/python/django/core/files/images.pyR s2        N(Rtdjango.core.filesRRtFalseR (((s1../Django//lib/python/django/core/files/images.pyts