[Bug 46787] Notepad++ rather slow (GetLocaleInfoEx)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=46787

--- Comment #5 from Nikolay Sivov  ---
At least in releases I tried, the way directwrite is used is rather suboptimal.
As I recall it simply recreated layout object every time text changed. That
means that if you have 100 words paragraph and you type a space somewhere in
it, all of it gets reshaped. Obviously when files gets larger, shaping time
increases.

Now, I don't know if there is some advanced word cache on Windows that reduces
the impact, but for the best performance editor should implement layout itself,
and use lower level API - GetGlyphs/GetGlyphPlacements.