Recently I ported an Ruby application to GTK3. It is working fine so far, but it seems that for GTK3 still stuff like widget margins and window borders are specified in pixels. (some sizes, like text entry size, can be specified already in characters, which is fine) My application is in area of CAD (http://www.ssalewski.de/PetEd.html.en), so it may be used with displays of 200 DPI or more. Problem is, when a user has scaled text and widgets sizes up, i.e. double the ordinary size. When I specify borders and margins in pixesl, then it may look not really nice for 200 DPI with scaled up widgets. I can offer the user a way to manually scale that spaces, some sort of that scaling is already offered for cairo drawing in my application, i.e. line width. But generally I would prefer automatic scaling of widgets margins. LaTeX has sizes em and ex relative to current font -- I think I can do something similar when I query users default font size or users custom widgets size. For GTK3 label there seems to be a method gtk_label_get_layout() and Pango offers methods to query pixel size of that layout. That may work, I can calculate some kind of ex and em values at program startup. (Unfortunately I am not notified when user changes font size in gnome control center...) Are there betters solution? I.e direct access to users default font size in x and y pixels? Best regards, Stefan Salewski _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gtk-list
