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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_CLIENT_SIGNAL_HPP
+#define INGEN_CLIENT_SIGNAL_HPP
+
+#include <sigc++/sigc++.h>
+
+#define INGEN_SIGNAL(name, ...) \
+protected: \
+sigc::signal<__VA_ARGS__> _signal_##name; \
+public: \
+sigc::signal<__VA_ARGS__> signal_##name() const { return _signal_##name; } \
+sigc::signal<__VA_ARGS__>& signal_##name() { return _signal_##name; }
+
+#define INGEN_TRACKABLE sigc::trackable
+
+#endif // INGEN_CLIENT_SIGNAL_HPP