StyleContext.addRegion
void addRegion(string regionName, gtk.types.RegionFlags flags)Adds a region to context, so posterior calls to [gtk.style_context.StyleContext.get] or any of the gtk_render_*() functions will make use of this new region for styling.
In the CSS file format, a #GtkTreeView defining a “row” region, would be matched by:
`` <!-- language="CSS" -->
treeview row { ... }
CODEBLOCK0 <!-- language="CSS" -->
treeview row:nth-child(even) { ... }
treeview row:nth-child(odd) { ... }
``
would apply to even and odd rows, respectively.
Region names must only contain lowercase letters and “-”, starting always with a lowercase letter.
Parameters
regionName | region name to use in styling |
flags | flags that apply to the region |