91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
/*
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* Copyright (C) 2016 Paul Davis <paul@linuxaudiosystems.com>
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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_solo_isolate_control_h__
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#define __ardour_solo_isolate_control_h__
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#include <string>
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#include <boost/shared_ptr.hpp>
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#include "ardour/slavable_automation_control.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 Session;
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class Soloable;
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class Muteable;
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class LIBARDOUR_API SoloIsolateControl : public SlavableAutomationControl
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{
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public:
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SoloIsolateControl (Session& session, std::string const & name, Soloable& soloable, Temporal::TimeDomain);
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double get_value () const;
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/* Export additional API so that objects that only get access
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* to a Controllable/AutomationControl can do more fine-grained
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* operations with respect to solo isolate. Obviously, they would need
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* to dynamic_cast<SoloControl> first.
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*
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* Solo Isolate state is not representable by a single scalar value,
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* so set_value() and get_value() is not enough.
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*
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* This means that the Controllable is technically
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* asymmetric. It is possible to call ::set_value (0.0) to
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* disable (self)solo, and then call ::get_value() and get a
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* return of 1.0 because the control is isolated by
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* upstream/downstream or a master.
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*/
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void mod_solo_isolated_by_upstream (int32_t delta);
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/* API to check different aspects of solo isolate substate
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*/
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uint32_t solo_isolated_by_upstream () const {
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return _solo_isolated_by_upstream;
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}
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bool self_solo_isolated () const {
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return _solo_isolated;
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}
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bool solo_isolated() const { return self_solo_isolated() || solo_isolated_by_upstream(); }
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int set_state (XMLNode const&, int);
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XMLNode& get_state () const;
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protected:
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void master_changed (bool from_self, PBD::Controllable::GroupControlDisposition gcd, boost::weak_ptr<AutomationControl>);
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void actually_set_value (double, PBD::Controllable::GroupControlDisposition group_override);
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private:
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Soloable& _soloable;
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bool _solo_isolated;
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uint32_t _solo_isolated_by_upstream;
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void set_solo_isolated (bool yn, Controllable::GroupControlDisposition group_override);
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};
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} /* namespace */
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#endif /* __libardour_solo_isolate_control_h__ */
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