On Sun, 2007-08-19 at 13:42 -0500, Mark Tilford wrote: > I'm trying to port a Windows program. It has its own text layout > written in portable code, so I only need to handle things like > draw_text_at (xcoord, ycoord, string, font) and measure_text (string, > font). Where's the appropriate documentation?
Pango is the layer used for major font handling with GTK. GTK provides its own wrappers around Pango for the most part, so that its not often necessary to deal with Pango directly. Most widgets that handle text can be told to use or not use "markup". When using markup, <i>foo</i> will render "foo" in an italic font; when not using, you can guess what happens. Text measurement with Pango is a bit more complex, because Pango handles many, many more writing systems than Windows explicitly acknowledges, and is also capable of much finer control over the layer. Specifically, Pango has a notion of "logical extents" and "ink extents". The former is generally used for typesetting-style composition, the latter tells you about the box surrounding the actual pixels that the font will render into. Armed with this information, you should be able to find the documentation you are looking for. > (And it needs raw measuring; "<B>x</B>" should render / be measured as > 8 characters, not 1.) this is a picky, and IMHO, silly detail to bring up. did you have some kind of issue with Windows and this sort of thing? > > BTW, why is Cairo even mentioned in > http://gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/ch15.html if it was > apparently added in gtk 2.9? very confusingly, gtkmm-2.4 is an *API* version, not a release version. it defines a stable, source and binary compatible API that has been maintained from GTK+ 2.something until the present. I don't consider this nomenclature ideal, but its what we have. --p _______________________________________________ gtkmm-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/gtkmm-list
