Re: Using Cairo and Pango to scroll text on video
Maarten Bosmans <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <CA+CvcKRBdW_p--jkS_3SpNMXQ+O8QEQUw=VG62+93zr++Y+feg@mail.gmail.com> |
2012/5/11 <[email protected]>: > Is there a way to render the entire text to a > cairo surface whole? As far as I can see one needs a cairo surface before > creating the pango layout. However, in my case, I do not know the > dimensions of the cairo surface needed until after I start working in pango. You need to do it in 2 steps. First create a 1x1 surface and a corresponding layout. Then use the measured size to create a second surface to dray the text to. The layouting of the text is done twice in this approach. I don't know of a way around that, but don't think it is a problem, performance wise. Maarten -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo