void layout_node::apply(evaluated_format_properties_ptr const& p, feature_impl const& feature, attributes const& vars, text_layout & parent) const
{
text_layout_properties new_properties(parent.get_layout_properties());
if (dx) new_properties.dx = *dx;
if (dy) new_properties.dy = *dy;
if (text_ratio) new_properties.text_ratio = *text_ratio;
if (wrap_width) new_properties.wrap_width = *wrap_width;
if (wrap_char) new_properties.wrap_char = *wrap_char;
if (wrap_before) new_properties.wrap_before = *wrap_before;
if (repeat_wrap_char) new_properties.repeat_wrap_char = *repeat_wrap_char;
if (rotate_displacement) new_properties.rotate_displacement = *rotate_displacement;
if (orientation) new_properties.orientation = *orientation;
if (halign) new_properties.halign = *halign;
if (valign) new_properties.valign = *valign;
if (jalign) new_properties.jalign = *jalign;
// starting a new offset child with the new displacement value
// we pass a null format tree since this is not the parent but a child
text_layout_ptr child_layout = std::make_unique<text_layout>(parent.get_font_manager(),
feature,
vars,
parent.get_scale_factor(),
parent.get_default_text_properties(),
new_properties,
formatting::node_ptr());
// process contained format tree into the child node
if (child_)
{
child_->apply(p, feature, vars, *child_layout);
}
else
{
MAPNIK_LOG_WARN(format) << "Useless layout node: Contains no text";
}
parent.add_child(std::move(child_layout));
}
