Author: duncan
Date: Thu Jan 4 23:17:29 2007
New Revision: 8930
Modified:
branches/rel-1/freevo/src/util/fileops.py
Log:
Added scale_rectangle_to_max for image scaling
Modified: branches/rel-1/freevo/src/util/fileops.py
==============================================================================
--- branches/rel-1/freevo/src/util/fileops.py (original)
+++ branches/rel-1/freevo/src/util/fileops.py Thu Jan 4 23:17:29 2007
@@ -541,6 +541,25 @@
return create_thumbnail(filename, thumbnail)
+def scale_rectangle_to_max(size, max_size):
+ '''
+ returns a scaled rectangle size fitting the size to max_size
+ this can be used to scale images for viewing in a browser and
+ retaining the aspect ratio
+ '''
+ try:
+ scaled_width = max_size[0]
+ scaled_height = max_size[1]
+ # if actual image aspect ratio > scaled image aspect ratio then scale
height
+ if float(size[0]) / size[1] > float(scaled_width) / scaled_height:
+ scaled_height = scaled_width * size[1] / size[0]
+ else: # else scale width
+ scaled_width = scaled_height * size[0] / size[1]
+ except ZeroDivisionError:
+ pass
+ return (scaled_width, scaled_height)
+
+
def www_link_cachedir():
'''returns the www link cache directory name
if the directory does not exist it is created
-------------------------------------------------------------------------
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