[wp-trac] [WordPress Trac] #21810: Improve image size API

[WordPress Trac]

#21810: Improve image size API
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 Reporter:  koopersmith     |      Owner:
     Type:  task (blessed)  |     Status:  new
 Priority:  normal          |  Milestone:  3.5
Component:  Media           |    Version:  trunk
 Severity:  normal          |   Keywords:
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 When discussing the new media workflows on #21390, the need to improve our
 image size API became apparent.

 A quick overview of the improvements that should be made:

 * All image attachments have an original, or "golden master", which is
 never altered.

 * An image size creates a new image and stores all transformations applied
 to the image as metadata. Transformations are described relative to the
 golden master. An image size has a unique slug (which means a set of
 dimensions does *not* have to be unique).

 * Image attachments have a "master" image size, which is used to create
 any automatically generated image sizes.

 * Automatically generated image sizes can be overridden with manual
 transformations.

 Would love for someone to step up on this ticket, as the media modal
 editing UI will benefit greatly from these improvements.

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Ticket URL: <http://core.trac.wordpress.org/ticket/21810>
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