I went a little nuts this evening and spent a few hours adding drag and drop image support to the app. Thankfully I’ve worked with images and dragging and dropping on the Mac before. In spite of that, it was still a little painful to get this working, mostly because of the pasteboard data format. I had some trouble getting the right NSURL data out of the pasteboard. I also had to work a bit to save the right image representation when writing the document to disk.
Anyway, I’ll have more info on how this all works later, but check out this real in-app screenshot.
The other cool thing is that all images are saved directly in the document package.