void LayerTree::object_changed(const std::string &key, const grt::ValueRef &value, mforms::TreeNodeRef node) {
FigureNode *fn = dynamic_cast<FigureNode *>(node->get_data());
if (key == "name")
node->set_string(0, fn->object->name());
else if (key == "layer") {
model_FigureRef figure(model_FigureRef::cast_from(fn->object));
if (figure->layer() != value) {
fn->conn.disconnect();
node->remove_from_parent();
if (figure->layer() == _diagram->rootLayer()) {
int insertion_point = 0;
// find the last node that's not a layer
for (int c = count(); insertion_point < c; ++insertion_point) {
mforms::TreeNodeRef n = node_at_row(insertion_point);
FigureNode *nn = dynamic_cast<FigureNode *>(n->get_data());
if (!nn)
continue;
if (nn->is_layer)
break;
}
add_figure_node(mforms::TreeNodeRef(), figure, insertion_point);
} else {
mforms::TreeNodeRef layer_node = node_with_tag(figure->layer().id());
add_figure_node(layer_node, figure);
}
}
}
}
void LayerTree::activate_node(const mforms::TreeNodeRef &node, int column) {
FigureNode *fnode = dynamic_cast<FigureNode *>(node->get_data());
if (fnode)
_form->focus_and_make_visible(fnode->object, true);
}