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::_enter_canvas() { if ((!get_parent() || !get_parent()->cast_to<CanvasItem>()) || toplevel) { Node *n = this; Viewport *viewport=NULL; canvas_layer=NULL; while(n) { if (n->cast_to<Viewport>()) { viewport = n->cast_to<Viewport>(); break; } if (!canvas_layer && n->cast_to<CanvasLayer>()) { canvas_layer = n->cast_to<CanvasLayer>(); } n=n->get_parent(); } RID canvas; if (canvas_layer) canvas=canvas_layer->get_world_2d()->get_canvas(); else canvas=viewport->find_world_2d()->get_canvas(); VisualServer::get_singleton()->canvas_item_set_parent(canvas_item,canvas); group = "root_canvas"+itos(canvas.get_id()); add_to_group(group); get_tree()->call_group(SceneTree::GROUP_CALL_UNIQUE,group,"_raise_self"); } else { CanvasItem *parent = get_parent_item(); VisualServer::get_singleton()->canvas_item_set_parent(canvas_item,parent->get_canvas_item()); parent->_queue_sort_children(); } pending_update=false; update(); notification(NOTIFICATION_ENTER_CANVAS); }