Re: Caching merged diffs

[Piotr Piastucki <leech miranda gmail com>]

This is a multi-part message in MIME format.

2009/7/11 Stephen Kennedy <stevek gnome org>:
> > It's reasonable then to put the diff computation & most of the i/o in a
> > subprocess, which would make the ui much more responsive.
> >     
Regarding ui responsiveness, I am sending a patch that tries to improve 
performance of inline highlighting.
Test case:
1) run "meld filediff.py meldapp.py"
2) type something in either of the panes
3) wait.... :)
I know it is not a real-life example, but it shows exactly what the 
issue is.
Patch:
I added a simple cache that stores replace chunks. The cache is updated 
and checked in _update_highlighting(). Chunks that did not change are 
not taken into account and as a result inline highlighting becomes 
somewhat incremental.
Moreover I could not find any place where "delete line", "conflict line" 
or "replace line" tags are set so I changed this piece of code and 
remove_tag() is called for "inline line" only.

Comments welcome.

Cheers,
Piotr