Mouse manipulation

The mouse interaction with the maps has been pretty poor so far, but this weekend I have managed to iron out a few bugs. You can now drag the branches around and they behave pretty much as your would expect. The strange side effect is, because all of the branches interconnected and try to repel each other, the whole of the mind map behaves like an organic structure. If you wiggle a branch on one side of the map, the shock travels through the whole structure.

I have also started to put the first pieces in place for cross-links. Cross links are the branches that join two distinct branches together. This is the major difference between mind maps and simple tree structures like you get in outliners.

At the moment I am saving files in OPML format, which is far from perfect, but is working reasonably well. The files now save their angle information, which looks a little odd if you open the outline in another tool (like OmniOutliner) but it does get past the problem of every file you open having to re-arrange itself.

It's nearly 11 now and I need to get to bed.