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-/*
- This file is part of Ingen.
- Copyright 2007-2015 David Robillard <http://drobilla.net/>
-
- Ingen is free software: you can redistribute it and/or modify it under the
- terms of the GNU Affero General Public License as published by the Free
- Software Foundation, either version 3 of the License, or any later version.
-
- Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
-
- You should have received a copy of the GNU Affero General Public License
- along with Ingen. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef INGEN_NODE_HPP
-#define INGEN_NODE_HPP
-
-#include <cstdint>
-#include <map>
-#include <string>
-#include <utility>
-
-#include "ingen/Resource.hpp"
-#include "ingen/ingen.h"
-#include "ingen/paths.hpp"
-#include "ingen/types.hpp"
-#include "lilv/lilv.h"
-
-namespace Raul {
-class Path;
-class Symbol;
-}
-
-namespace Ingen {
-
-class Arc;
-class FilePath;
-class Store;
-class URIs;
-
-/** A node in the audio graph.
- *
- * The key property of nodes is that all nodes have a path and a symbol, as
- * well as a URI.
- *
- * To avoid ugly inheritance issues and the need for excessive use of
- * dynamic_cast, this class contains some members which are only applicable to
- * certain types of node. There is a type tag which can be used to determine
- * the type of any Node.
- *
- * @ingroup Ingen
- */
-class INGEN_API Node : public Resource
-{
-public:
- enum class GraphType {
- GRAPH,
- BLOCK,
- PORT
- };
-
- typedef std::pair<const Node*, const Node*> ArcsKey;
- typedef std::map< ArcsKey, SPtr<Arc> > Arcs;
-
- // Graphs only
- Arcs& arcs() { return _arcs; }
- const Arcs& arcs() const { return _arcs; }
-
- // Blocks and graphs only
- virtual uint32_t num_ports() const { return 0; }
- virtual Node* port(uint32_t index) const { return nullptr; }
- virtual const Resource* plugin() const { return nullptr; }
-
- // Plugin blocks only
- virtual LilvInstance* instance() { return nullptr; }
- virtual bool save_state(const FilePath& dir) const { return false; }
-
- // All objects
- virtual GraphType graph_type() const = 0;
- virtual const Raul::Path& path() const = 0;
- virtual const Raul::Symbol& symbol() const = 0;
- virtual Node* graph_parent() const = 0;
-
- URI base_uri() const {
- if (uri().string()[uri().string().size() - 1] == '/') {
- return uri();
- }
- return URI(uri().string() + '/');
- }
-
-protected:
- friend class Store;
- virtual void set_path(const Raul::Path& p) = 0;
-
- Node(const URIs& uris, const Raul::Path& path)
- : Resource(uris, path_to_uri(path))
- {}
-
- Arcs _arcs; ///< Graphs only
-};
-
-} // namespace Ingen
-
-#endif // INGEN_NODE_HPP