-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/01/12 10:58, Jean-Marc Lasgouttes wrote: > Le 05/01/2012 09:40, Olivier Ripoll a écrit : >> On 05.01.2012 05:16, Jerry wrote: >>> Do the developers monitor this list? Or does someone need to >>> file a bug report for the slow scrolling problem? >>> >>> Jerry >> >> Yes, they are looking at it. If you look at the thread, you'll >> see several names of LyX developers (not exhautively: Pavel >> Sanda, Richard Heck, Jean-Marc Lasgouttes, André Pönitz) > > The problem is that we have yet to pinpoint the root cause. I see > two major points: > > - we have experimental code that seems to improve the situation on > linux. We'll probably learn more once it is deployed to many > people. I am not sure there are plans to port to branch yet. This > may be useful for cases where different people see different > speeds. > > - there is a part of the code that we know should be rewritten: to > compute metrics (size of words), we work at glyph level, while > painting is done at word level. This is what creates display > problems with OS X when the is kerning/ligatures effects. The > "paint single char" pref that has been discussed makes everything > work at glyph level, which is correct but slow. What we need is to > do all at word level (except for RtL text, which is a different > story). Unfortunately, this part of code is a can of worm and > nobody dares touching it.
If I look at the number of emails flying around on this issue, one should look at options how this can be fixed. I must admit I do not know the inner workings of LyX, so I might be completely off. I nobody dares to touch this code (I would guess because of time requirements once one starts fixing it), one could try to raise funds to pay somebody (preferably somebody who knows LyX's inner workings) to address this issue - it seems to be on many peoples mind. Cheers, Rainer > > JMarc - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D): +49 - (0)3 21 21 25 22 44 email: rai...@krugs.de Skype: RMkrug -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk8FeLcACgkQoYgNqgF2egqWJwCfaqqoP9Rxzs8J1ZK8tgqLCW5M Y4UAn0u47pmpgS3fYORvbt+J0u3AWTS3 =N3hn -----END PGP SIGNATURE-----
