Gtkmm 4 textview doesnt apply css c++

Community
1

hi
in gtkmm4 i have different widgets in grid …i want odd and even rows to have different styling and specific styling for selected row

textview has this css class names:

view rhea_gridCellEven rhea_gridCellWdg 
view rhea_gridCellOdd rhea_gridCellWdg

cssData += ".rhea_gridCellEven {background-color: #FFFFFF; border-color: black; border-style: none none solid solid;border-width: 1px;}";
cssData += ".rhea_gridCellOdd {background-color: #E0E0E0; border-color: black; border-style: none none solid solid;border-width: 1px;}";

widget->get_style_context()->add_provider(cssProvider,GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);

but textview nor other widgets apply css styling for background…label seems to work fine …

2

Any style provider applied to a single widget will not cascade into its children. The whole API has been deprecated for a reason.

You must always add a style provider to the display: Gtk.StyleContext.add_provider_for_display

3

first thank you for reply and help.
cascade styling is not what i intended …textview has several css classes as shown above. i changed the code and and textview doesnt change background …but i was able (even with code before) to change font color …but not background. here is new code but no success:

auto display = Gdk::Display::get_default();

widget->get_style_context()->add_provider_for_display(display,cssProvider,GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
4

i didnt properly understand css structure of text view. to apply background to textview css element “text” must be included.