Thanks for your response. That Harfbuzz library sounds interesting. I will look into that. The lack of documentation might not be a problem if the library is easy to use :-) I will give it a try.
Werner LEMBERG wrote: > > >> However, I find the library totally NOT intuitive, since I am a C++ >> developer and not very used to low level C libraries. > > Suggestions for improvements of the documentation (or even patches) > are highly welcomed! > >> So, now, here is my main problem at the moment: When I set the pen >> coordinates like this: >> >> pen.x = posx*64; >> pen.y = (height-posy)*64; >> >> where (posx, posy) are the pixel coordinates on the wxDC and height >> are the font size (in points!), the text is drawed so the leftmost >> point on the baseline of the first glyph is at (posx, posy). >> Instead, I would like it to draw the text so (posx, posy) is the >> upper-left point of the bounding box of the font face. And rotation >> has to be around this point as well. How can I do that? I spent >> hours, hours and hours to make some kind of offset to pen.y, but it >> is never just right when taking different DPI's and rotation into >> account. > > The only solution is to get an exact bbox of a character string is to > let FreeType compute all outlines at the given ppem value (this data > should be cached). I strongly recommend to use a higher-level library > like Harfbuzz which does this job for you, and which also takes care > of advanced typographical stuff. > >> My second question is, to render single line, rotated "rich text", >> that is text that is using different font faces (normal, italic), >> different weight (regular, bold), underline, overline, subscript and >> superscript, can I use FreeType to do this directly? If not, I >> guess it can do the job, but I will do better (and faster) with a >> library that already supports this. So, what library is that? It >> has to be cross-platform (Windows, Mac OS X, Linux and so on) and of >> course, well supported and easy to use. > > Again: Harfbuzz. You will be certainly delighted to hear that there > is *no* documentation yet of this library :-) However, its demo and > test programs are written in C++. > > > Werner > > _______________________________________________ > Freetype mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/freetype > > -- View this message in context: http://old.nabble.com/How-to-render-glyphs-with-baseline-offset-tp35179767p35183391.html Sent from the Freetype - User mailing list archive at Nabble.com. _______________________________________________ Freetype mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/freetype
