[poppler] Image optimization
jeff at infidigm.net
Sun May 22 11:08:46 PDT 2005
On Sun, May 22, 2005 at 10:12:53AM -0400, Leonard Rosenthol wrote:
> At 09:52 AM 5/22/2005, Jeff Muizelaar wrote:
> >I haven't actually tested it with those things because I couldn't find
> >any pdfs that used them (esp. the vertical writing mode).
> I'll dig some up for you...
That would be great, thanks.
> > However, there shouldn't be any problems. It is basically the difference
> It isn't that simple..
> Look at Gfx::doShowText, which is where the magic happens.
> In the case of a drawChar() model, it does all the relevant
> calculations between characters (and words) to place the glyphs as the
> correct location. In the case of drawString(), it expects that the
> OutputDev is going to do all that. I don't know if Cairo has been properly
> setup to address all the necessary transforms and spacing values.
The code in CairoOutputDevice::drawString() is basically a copy of the code
that calls drawChar() so it produce exactly the same the results.
More information about the poppler