I was using the image task to create thumbnails and couldn't figure out
how to keep proportions of an image but keep it within a fixed size.
My solution was to change the keepproportions attribute to be a little cleverer.
The keepproportions attribute is no more and has been replaced by the proportions
attribute, which has been added with the following features:

proportions="ignore" - treat the dimensions independently (==keepproportions="false" and is default)
proportions="width" - keep proportions based on the width (==keepproportions="true")
proportions="height" - keep proportions based on the height
proportions="fit" - keep proportions and fit in the supplied dimensions
proportions="cover" - keep proportions and cover the supplied dimensions

Submitted by: Rob Oxspring (roxspring at imapmail dot org)


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275127 13f79535-47bb-0310-9956-ffa450edef68