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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_ENGINE_PLUGINIMPL_HPP
+#define INGEN_ENGINE_PLUGINIMPL_HPP
+
+#include <cstdlib>
+
+#include "ingen/Resource.hpp"
+#include "raul/Symbol.hpp"
+
+namespace ingen {
+
+class URIs;
+
+namespace server {
+
+class BlockImpl;
+class BufferFactory;
+class Engine;
+class GraphImpl;
+
+/** Implementation of a plugin (internal code, or a loaded shared library).
+ *
+ * Conceptually, a Block is an instance of this.
+ */
+class PluginImpl : public Resource
+{
+public:
+ PluginImpl(ingen::URIs& uris, const Atom& type, const URI& uri)
+ : Resource(uris, uri)
+ , _type(type)
+ , _presets_loaded(false)
+ , _is_zombie(false)
+ {
+ }
+
+ virtual BlockImpl* instantiate(BufferFactory& bufs,
+ const Raul::Symbol& symbol,
+ bool polyphonic,
+ GraphImpl* parent,
+ Engine& engine,
+ const LilvState* state) = 0;
+
+ virtual const Raul::Symbol symbol() const = 0;
+
+ const Atom& type() const { return _type; }
+ void set_type(const Atom& t) { _type = t; }
+ bool is_zombie() const { return _is_zombie; }
+ void set_is_zombie(bool t) { _is_zombie = t; }
+
+ typedef std::pair<URI, std::string> Preset;
+ typedef std::map<URI, std::string> Presets;
+
+ const Presets& presets(bool force_reload=false) {
+ if (!_presets_loaded || force_reload) {
+ load_presets();
+ }
+
+ return _presets;
+ }
+
+ virtual void update_properties() {}
+
+ virtual void load_presets() { _presets_loaded = true; }
+
+ virtual URI bundle_uri() const { return URI("ingen:/"); }
+
+protected:
+ Atom _type;
+ Presets _presets;
+ bool _presets_loaded;
+ bool _is_zombie;
+
+private:
+ PluginImpl(const PluginImpl&) = delete;
+ PluginImpl& operator=(const PluginImpl&) = delete;
+};
+
+} // namespace server
+} // namespace ingen
+
+#endif // INGEN_ENGINE_PLUGINIMPL_HPP