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s# Multimedia helpers for images, etc.i˙˙˙˙Nt
choose_heightt get_dimensions_pilt get_dimensionsc C s$ t | t | } t | | S( s Return the height corresponding to ``new_width`` that's proportional
to the original size (``width`` x ``height``).
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proportion( ( s4 /usr/lib/python2.6/site-packages/webhelpers/media.pyR
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o | SX| i S( sĄ Get an image's size using the Python Imaging Library (PIL)
Returns ``(width, height)`` as two integers, or ``default`` if the size
could not be ascertained. Failuer usually means the file does not exist
or is not in a format recognized by PIL.
Depends on the Python Imaging Library (http://pypi.python.org/pypi/PIL).
See ``get_dimensions()`` if your application is not otherwise using PIL.
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i d | \ } } | | f S| SWd | i Xd S( s( Get an image's size using only the Python standard library
Returns ``(width, height)`` as two integers, or ``default`` if the size
could not be ascertained. Failure usually means the file does not exist
or is not in a recognized format. Only JPG/PNG/GIF/BMP are supported at
this time.
The algorithms are based on a PyCode recipe by Perenzo/Welch/Ray.
(http://www.pycode.com/modules/?id=32&tab=download)
This helper recognizes fewer image formats and is potentially less
accurate than ``get_dimensions_pil()``.
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