Undo system

[Sven Langkamp]

On 3/8/07, Sven Langkamp <sven.langkamp at gmail.com> wrote:
> - At the moment the commands in KisImage work recursive, which should
> be avoided. It's not clear who is responsible for the locking of the
> image. There are cases where the image is locked and unlocked three
> times.
>
> I think the locking of the image should be done by the command only.
>
>
> - There isn't a KisCommandHistoryListener at the moment, but it's
> needed for the transform tools. My idea was that KisDoc2 could
> override the addCommand function, but would make the transform tool
> Krita only.

The more I look into this the more I fear that I will have to
reintroduce KisUndoAdapter for the new Undo System. Without it many
things would break, especially the locking of the undo stack and the
big dependency on macro commands.