I've used other systems like Starteam in the past and patches created using that system show the entire source file. Seeing the whole source when analysing patches can often help identify potential issues with a patch.
So my question is this: Is there an easy way to get TortoiseSVN diff tool to show the patch in context (without manually applying the patch to a local checkout)? ..or is there an external tool that could be made to do this?