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    <p>You guys beat me to it. :-) </p> <p>Yes, JLNDragEffectManager is open source (with attribution in your apps, please) and available on my blog. It should work fine as-is with no modification back to 10.5, but I'm not sure back any further. Others linked to it (and it's easily googleable), so to avoid self-congratulatory blog linking, I'll leave it at that.</p> <p><strong>Issues:</strong> One developer commented on (and submitted code to fix) the lack of dragging offset support. I've just not gotten around to posting the update. That's the only outstanding issue I'm aware of. </p> <p><strong>Improvements:</strong> I'd like to add multiple "zones" (say, one per document, so dragging from doc to doc keeps table rows looking like table rows, but anywhere outside doc windows turns them into a file icon a la HFS Promise Drag). Some day ...</p> <p><strong>Design:</strong> The post itself details the reasoning behind the design and the relatively simple morphing effect (cross-fade plus size are animated using basic NSAnimation, etc.). The code (the class as well as the demo app) is thoroughly blocked out and commented.</p> <p><em>Won't link to my own post but would love the karma of upvotes for my effort.</em> ;-)</p> <p><strong><em>UPDATE</em></strong>: Similar (but better-integrated) functionality is available as of 10.7. If you are targeting 10.7 or higher, it's best to use the new API. JLNDragEffectManager works fine on 10.7, so it can be used for earlier-targeted versions.</p>
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    1. COMany many thanks Joshua. This is working beautifully. Also, great blog post! :) Don't suppose you have a link to the afore-mentioned fix for the dragoffset?
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      1. USTodd Ditchendorf
    2. COIf you end up using this class, just let me know and I'll add your app to the list on the source page.
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