[UI] Diff tools.

[Igor Stasenko]

2008/4/16 Juan Vuletich <juan at jvuletich.org>:
> I don't know if you are serious, but I guess that the screen shot at
> http://www.jvuletich.org/NiceFonts.html shows clearly that using black
> colored backgrounds as well as colored text on colored backgrounds is not
> broken at all.
>
>  If you care to read the page, it says:
>
>  "For black text on colored backgrounds I started experimenting with alpha
> blending (BitBlt rule 34). But I realized that rule 28 could do a much
> better work. Rule 28 takes the min value between source and destiny for each
> rgb component. So it will leave the background untouched except for those
> pixels where the font wants something darker. There, the font rules. It
> looks great."
>
>  "For doing sub pixel AA of colored text on colored background I believe you
> need to render the font again. As I can't do that, I use whole pixel AA
> (i.e. regular AA). So I prepared color maps. For example, to render a red
> font, I prepared a color map that maps the different colors in the font to
> red with different translucency. Then I display the text with alpha blending
> (BitBlt rule 34)."
>
>

Yes, i had read this page. Still i can't understand, why you need
32bpp for font bitmaps?
Also, subpixel AA works fine only for TFT monitors, while on CRT or on
display with different color matrix it may look not correct.
I think, that without correct information about display media you
should not use subpixel AA.


>
>  Cheers,
>  Juan Vuletich
>
>  Igor Stasenko wrote:
>
> > 2008/4/16 Juan Vuletich <juan at jvuletich.org>:
> >
> >
> > > Hi Igor,
> > >
> > >  I'd be happier if you actually used it, but...
> > >
> > >  It does not require BitBlt rule 41. It uses rules 28 and 34. So it uses
> the
> > > 32 bits (actually it could work with 24, but never tried) to store the
> full
> > > subpixel data. The Form in the font has the glyphs in black with colored
> > > borders for subpixel rendering.
> > >
> > >
> > >
> >
> > Yes, but that means that font will look fine only if you render black
> > text on white background.
> > For the rest 2^32-1 (font color variants) such representation is
> > completely broken.
> >
> >
> >
> > >  Cheers,
> > >  Juan Vuletich
> > >
> > >
> > >
> > >  Igor Stasenko wrote:
> > >
> > >
> > >
> > > > 2008/4/16 Juan Vuletich <juan at jvuletich.org>:
> > > >
> > > >
> > > >
> > > >
> > > > > Did I ever tell I did a very small change set that allows 32 bpp
> > > > > StrikeFonts, and a set of free subpixel rendered fonts? Works on any
> > > > > platform without any new plugin. It is what you need for this to
> look
> > > > >
> > > > >
> > > >
> > > really
> > >
> > >
> > > >
> > > > > great (if you are not using FreeType). It is at
> > > > > http://www.jvuletich.org/NiceFonts.html .
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > I'm aware of your changes concerning fonts.
> > > > Just one question, why it requires 32bpp , not 8bpp?
> > > > A raster font should be represented by a mask and 8bpp for mask pixels
> > > > is more than enough for representing font with fully opaque/fully
> > > > transparent and semi-transparent pixels. What you doing with rest 24
> > > > bits?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > >  I can understand people not using it because they prefer FreeType.
> But
> > > > >
> > > > >
> > > >
> > > I
> > >
> > >
> > > >
> > > > > can't understand how can somebody prefer those ugly fonts...
> > > > >
> > > > >  Cheers,
> > > > >  Juan Vuletich
> > > > >
> > > > >  Adrian Lienhard wrote:
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > > Hey, that's cool!
> > > > > >
> > > > > > For those that don't have the time to load the code, here is a
> > > > > >
> > > > > >
> > > > >
> > > >
> > > screenshot
> > >
> > >
> > > >
> > > > >
> > > > > >
> > > > > >
> > > > > (sorry for the additional traffic, but since there was no other
> response
> > > > >
> > > > >
> > > >
> > > to
> > >
> > >
> > > >
> > > > > this mail, I think it's appropriate ;) )
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > ------------------------------------------------------------------------
> > >
> > >
> > > >
> > > > >
> > > > > > ...Screenshot removed...
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > One thing I noticed is that in the text panes, for selected code
> the
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > keyboard shortcuts do not work and the usual context menu is
> missing.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > > Cheers,
> > > > > > Adrian
> > > > > >
> > > > > > BTW: I still have a problem loading or updating to versions beyond
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > Pinesoft-Widgets-gvc.301.mcz (even if there are no windows opened
> when
> > > > > loading, which we do using MC config maps). I get an emergency
> debugger
> > > > >
> > > > >
> > > >
> > > from
> > >
> > >
> > > >
> > > > > which the image cannot recover.
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > >  _______________________________________________
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> > > > >  UI at lists.squeakfoundation.org
> > > > >  http://lists.squeakfoundation.org/mailman/listinfo/ui
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >  _______________________________________________
> > >  UI mailing list
> > >  UI at lists.squeakfoundation.org
> > >  http://lists.squeakfoundation.org/mailman/listinfo/ui
> > >
> > >
> > >
> >
> >
> >
> >
> >
>
>  _______________________________________________
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>



-- 
Best regards,
Igor Stasenko AKA sig.