+const Variant &Collection::get_var(const string &name, const CollectionItemTypeBase *type)
+{
+ ItemMap::iterator i = items.find(name);
+ if(i!=items.end())
+ return i->second;
+
+ if(type)
+ {
+ bool loaded = false;
+ if(type->can_create())
+ {
+ type->create_item(*this, name);
+ loaded = items.count(name);
+ }
+ for(SourceList::iterator j=sources.begin(); (!loaded && j!=sources.end()); ++j)
+ {
+ (*j)->load(*this, *type, name);
+ loaded = items.count(name);
+ }
+ if(!loaded && fallback)
+ {
+ for(TypeList::const_iterator j=fallback->types.begin(); j!=fallback->types.end(); ++j)
+ if((*j)->is_same_type(*type))
+ {
+ if(fallback->get_status(name, **j))
+ return fallback->get_var(name, *j);
+ break;
+ }
+ }
+ }
+
+ return get_item(items, name);
+}
+
+void Collection::gather_items(list<const Variant *> *vars, list<string> *names, const CollectionItemTypeBase &type, bool include_sources) const
+{
+ for(ItemMap::const_iterator i=items.begin(); i!=items.end(); ++i)
+ if(type.check_item_type(i->second))
+ {
+ if(vars)
+ vars->push_back(&i->second);
+ if(names)
+ names->push_back(i->first);
+ }
+
+ if(include_sources && names)
+ gather_names_from_sources(*names, type);
+}
+
+unsigned Collection::get_status(const string &name, const CollectionItemTypeBase &type) const
+{
+ ItemMap::const_iterator i = items.find(name);
+ if(i==items.end())
+ {
+ for(SourceList::const_iterator j=sources.begin(); j!=sources.end(); ++j)
+ if((*j)->is_loadable(type, name))
+ return 2;
+ return 0;
+ }
+
+ return type.check_item_type(i->second);
+}
+
+CollectionItemTypeBase *Collection::get_type_for_item(const Variant &var) const
+{
+ for(TypeList::const_iterator i=types.begin(); i!=types.end(); ++i)
+ if((*i)->check_item_type(var))
+ return *i;
+ return 0;
+}
+