matthiasm wrote: > > On 21.12.2008, at 13:14, Albrecht Schlosser wrote: > >> APPLE_QUARTZ: CGContextStrokeRect() >> >> Interesting point: For Quartz antialiasing is switched off explicitly, >> if (and only if) the current line width is 1.0f (I'm guessing this from >> reading the code, but it seems to be obvious). [BTW.: And it is >> unconditionally set to true afterwards, which might be another bug, if >> it was false before.] > > > Yes, when I originally ported to Quartz, I wanted to get Box drawing > correctly, but still allow for antialiasing somehow. Since no API for > antialiasing exists (yet) in FLTK, I used the 1-pixel trick. I assume > that this is the time to introduce an API for antialiasing... .
What might be useful is to define "0" as the 1-pixel-wide, aliased version, while any other value produced anti-aliased output. 0-width lines on Mac OS X are otherwise invisible since Quartz does not support 1 pixel/dot wide rendering that way like PostScript or Cairo does... > You will also find some source code for "unittest.cxx" in the "test" > directory. The idea was to verify pixelwise drawing between platforms, > but was never finished. Maybe another item that would be useful to revive. > > Matthias > > ---- > http://robowerk.com/ > > -- ______________________________________________________________________ Michael Sweet, Easy Software Products mike at easysw dot com _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
