Am Mon, 08 Mar 2010 15:33:37 +0100
schrieb Dave Stikkolorum <dav...@dds.nl>:

> Hi,
> 
> I don't know who is doing all the good work of the undo-branche,
> but I was  wondering...
> 
> I've made my patch for cut/copy/past working for the undo branche.
> 
> I use a copy of the note_map of a pattern.
> 
> Every edit action is really a change of the whole pattern.
> 
> So I thought why not simply store copies of the note_map and restore 
> them when doing a undo.
> 
> In this way not every action has to have it's own undo/redo function.
> 
> So why is this not chosen?
> Is it because of the memory use?
> I must say I don't know how much a note_map uses.
> 
> Greetings,
> Dave

sebastian create the branch and implement the qudo framework. i do the most 
work to implement functions.

you are right. to copy the whole notemap is a other possibility to do this. i 
also don't know how much memory will eat on each undo action if you copy the 
whole note-map.
what ever, you talk about a working patch against the undo branch. can you 
attach the patch. so i can commit them.
one thing left. i hope the copy note-map undo action have a destructor which 
delete the note-map correctly. else we have a lot of left note objects.
 
greetings wolke 
> 
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