FreeGameDev

Here is a undo/redo system based on this. Added the regular Ctrl+z for undo and Ctrl+y for redo.
It supports undo/redo for:

• Adding and Removing objects
• Moving objects
• Adding and Removing paths
• Adding and Removing links

There are also some minor touch ups from the last patch.

Tell me what you think.

This looks interesting! I tried to apply this patch to version 0.4.1 but it fails. Can you please help me with this?

Hi,

I have applied your patch (with substantial modifications). It's already in the latest git version.

However, since there are some feature additions since 0.4.1, still a lot of them are uncovered by the undo/redo system. Later I'll check them when I have time.

Meanwhile you can also fork the repository at github and submit a pull request.