Re: Cairo

[Knut Petersen]

Hi Lukas,
> This time around, I could get it to compile. :-)
Thanks for testing


> After testing it against a bunch of my recent everyday LilyPond documents: For 
> most of the files, it seems to work perfectly. (In Okular, I seem to notice 
> very subtle differences in line widths, but those may be rendering artifacts.)

The same is true for glyphs ... I have to investigate if there is a minor 
ghostscript or cairo or poppler (=previewer) problem


> Also, in most cases, the Cairo-generated pdf is much smaller than the original. 
> This seems most promising and not far from production quality!

probably you did not use \pointAndClickOff ;-) At least the code of 
ly:cairo-draw-round-box in my patch needs optimizations and can be tuned to 
generate much smaller pdf code.


> Noticable defects:
>
> - There's no support for colors yet, right?

Coloring was only partially implemented and disabled, it works in the attached 
patch that can be applied on top of the V2 patch. The attached patch also 
implements rotation and supports transparent colors. prglprob.ly tests those 
features.


> - \markup \scale ... is ignored. Is this a fundamental limitation, or is this "just 
> not done yet"?

All missing features are "not done yet", I do not expect fundamental problems 
...


Knut

0001-Cairo-improvements.patch
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prglprob.ly
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