[Moved to dev list.] Anyone interested in working on this? The relevant code is in
collects/mred/private/wxme/test.rkt in `do-redraw'. Look for the use of `outline-brush'. The current strategy for drawing the selection is to draw the plain content and then apply a 'hilite brush over that. Under Windows and X, a 'hilite brush inverts colors. Under Mac OS X, a 'hilite brush adds the selection color on top of the drawing. The Mac OS X strategy is roughly correct for that platform. I think other Windows apps, however, handle highlighting differently: they draw some highlighting background (e.g., dark blue) and then draw the content in a different mode (e.g., drawing white text instead of black or colored). I don't know what the conventions are for X these days. Since Windows highlighting is supposed to work completely differently than the current strategy (I think), a good solution may require extending the snip% protocol. In GRacket2, there's no color-invert operation --- no xor drawing supoprted by the underlying drawing library. So, that's another reason that the strategy for Windows and X needs to change. Currently, GRacket2 highlights using a transparent gray on all platforms (roughly the same as GRacket1's 'hilite for Mac OS X). At Tue, 13 Jul 2010 18:37:06 +0000 (UTC), George Horton wrote: > Are there any plans to fix text highlighting on Windows, please? (It's bug > 9202/10166: in Racket 5.0 on Windows 7, highlighted text is poorly rendered > whatever rendering settings in DrRacket or Windows are used.) As far as I can > tell, this is the only thing making Racket unsuitable for desktop apps with > the > polish needed for public distribution. > Thanks for any info, > George _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
