Fetch makes it easy to edit server files (using any application you like), but sometimes you don't want to open the file, you just want to take a peek at it.
Apple responded to a similar need in the Finder by introducing the Quick Look feature in Mac OS X 10.5 Leopard. Tapping the space bar displays a preview of the selected file (or files), and tapping it again dismisses that preview. Quick Look can preview text, images, videos, audio, and many other documents, including those created by Microsoft Word and Excel. And the Quick Look system is extensible: as developers release Quick Look plugins, more and more file types are supported.
We've had Quick Look support in Fetch since releasing 5.5 last June. Just as in the Finder, tapping the space bar (or clicking the Quick Look button, or choosing themenu command) shows a Quick Look preview of the selected file on the server. Of course Fetch has to download the file contents before they can be previewed, but that happens automatically (and Fetch remembers the file so that it doesn't have to be re-downloaded if you preview the file again). Double-clicking in the Quick Look window opens the file in the appropriate application.
Thanks to new support in Mac OS X 10.6 Snow Leopard, we were able to improve Fetch's Quick Look behavior as of Fetch 5.5.2. Now, on Snow Leopard, you can switch back and forth between viewing a bunch of files as thumbnails or as a slideshow, and you can add previewed images to iPhoto.
One weakness we found with Quick Look in Fetch 5.5 has to do with its handling of text files. Quick Look does not support selecting text, so there is no way to copy a bunch of text out of the Quick Look preview in order to paste it in another application. To address this we added a View as Text command to Fetch 5.5.3. View as Text opens text files in separate windows, with support for selecting text.
Together, Quick Look and View as Text make previewing your files in Fetch easier than ever.