93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/*
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* Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2017 Robin Gareus <robin@gareus.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_slavable_h__
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#define __ardour_slavable_h__
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#include <memory>
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#include <set>
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#include <string>
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#include <stdint.h>
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#include "pbd/signals.h"
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#include "evoral/Parameter.h"
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#include "ardour/types.h"
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#include "ardour/libardour_visibility.h"
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class XMLNode;
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namespace ARDOUR {
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class VCA;
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class VCAManager;
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class AutomationControl;
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class SlavableAutomationControl;
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class LIBARDOUR_API Slavable
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{
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public:
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Slavable ();
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virtual ~Slavable() {}
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XMLNode& get_state () const;
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int set_state (XMLNode const&, int);
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virtual void assign (std::shared_ptr<VCA>);
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void unassign (std::shared_ptr<VCA>);
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PBD::Signal2<void,std::shared_ptr<VCA>,bool> AssignmentChange;
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virtual std::shared_ptr<AutomationControl> automation_control (const Evoral::Parameter&) = 0;
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static std::string xml_node_name;
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/* signal sent VCAManager once assignment is possible */
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static PBD::Signal1<void,VCAManager*> Assign;
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std::vector<std::shared_ptr<VCA> > masters (VCAManager*) const;
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/** recursively test for master assignment to given VCA */
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bool assigned_to (VCAManager*, std::shared_ptr<VCA>) const;
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protected:
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virtual SlavableAutomationControlList slavables () const = 0;
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private:
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bool assign_controls (std::shared_ptr<VCA>);
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void unassign_controls (std::shared_ptr<VCA>);
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bool assign_control (std::shared_ptr<VCA>, std::shared_ptr<SlavableAutomationControl>);
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void unassign_control (std::shared_ptr<VCA>, std::shared_ptr<SlavableAutomationControl>);
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mutable Glib::Threads::RWLock master_lock;
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std::set<uint32_t> _masters;
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PBD::ScopedConnection assign_connection;
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PBD::ScopedConnectionList unassign_connections;
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int do_assign (VCAManager* s);
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void weak_unassign (std::weak_ptr<VCA>);
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};
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} // namespace ARDOUR
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#endif /* __ardour_slavable_h__ */
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