This function validates @text and renders invalid UTF-8
with a placeholder glyph.
Note that if you have used [method@Pango.Layout.set_markup] or
[method@Pango.Layout.set_markup_with_accel] on @layout before, you
may want to call [method@Pango.Layout.set_attributes] to clear the
attributes set on the layout from the markup as this function does
not clear attributes.
Sets the text of the layout.
This function validates @text and renders invalid UTF-8 with a placeholder glyph.
Note that if you have used [method@Pango.Layout.set_markup] or [method@Pango.Layout.set_markup_with_accel] on @layout before, you may want to call [method@Pango.Layout.set_attributes] to clear the attributes set on the layout from the markup as this function does not clear attributes.