void CanvasItem::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_ENTER_TREE: {
first_draw=true;
pending_children_sort=false;
if (get_parent()) {
CanvasItem *ci = get_parent()->cast_to<CanvasItem>();
if (ci)
C=ci->children_items.push_back(this);
}
_enter_canvas();
if (!block_transform_notify && !xform_change.in_list()) {
get_tree()->xform_change_list.add(&xform_change);
}
} break;
case NOTIFICATION_MOVED_IN_PARENT: {
if (group!="") {
get_tree()->call_group(SceneTree::GROUP_CALL_UNIQUE,group,"_raise_self");
} else {
CanvasItem *p = get_parent_item();
ERR_FAIL_COND(!p);
p->_queue_sort_children();
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (xform_change.in_list())
get_tree()->xform_change_list.remove(&xform_change);
_exit_canvas();
if (C) {
get_parent()->cast_to<CanvasItem>()->children_items.erase(C);
C=NULL;
}
global_invalid=true;
} break;
case NOTIFICATION_DRAW: {
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
emit_signal(SceneStringNames::get_singleton()->visibility_changed);
} break;
}
}
void CanvasItem::set_as_toplevel(bool p_toplevel) {
if (toplevel==p_toplevel)
return;
if (!is_inside_tree()) {
toplevel=p_toplevel;
return;
}
_exit_canvas();
toplevel=p_toplevel;
_enter_canvas();
}
