Comment 1 for bug 524820

Agree stop button should only be active during scanning.

Don't agree about limiting the other options:
- You can save at any time because there is always a document present (it is a blank page by default).
- You can rotate and set area at any time as there is no reason to make the user wait to perform this - a use case would be a user scanning a document and realising as it scans it's upside down.

The order of actions I see users performing are:
- Scanning the document
- Printing, emailing or saving it

Optional actions:
- Changing to text mode
- Rotating (I expect this only has to be performed once, for the next scan the rotation will probably be correct)
- Set area (only if you need to - for a lot of full page documents this is not necessarily required)
- Re-scanning if it needs it (I'm not convinced preview is necessary - do you preview with your digital camera?)