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temporal: initial version of a time domain provider object

This commit is contained in:
Paul Davis 2023-07-18 11:11:44 -06:00
parent 961fdc9de6
commit af2e0e279c
1 changed files with 46 additions and 0 deletions
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libs/temporal/temporal/domain_provider.h Normal file
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/*
Copyright (C) 2023 Paul Davis <paul@linuxaudiosystems.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __temporal_domain_provider_h__
#define __temporal_domain_provider_h__
#include "temporal/types.h"
namespace Temporal {
class TimeDomainProvider {
public:
TimeDomainProvider () : have_domain (false), parent (nullptr) {}
TimeDomainProvider (TimeDomain td) : have_domain (true), domain (td), parent (nullptr) {}
TimeDomainProvider (TimeDomain td, TimeDomainProvider const & p) : have_domain (true), domain (td), parent (&p) {}
TimeDomainProvider (TimeDomainProvider const & p) : have_domain (false), parent (&p) {}
virtual ~TimeDomainProvider() {}
TimeDomain time_domain() const { if (have_domain) return domain; if (parent) return parent->time_domain(); return AudioTime; }
void set_time_domain (TimeDomain td) { have_domain = true; domain = td; }
void clear_time_domain () { have_domain = false; }
private:
bool have_domain;
TimeDomain domain;
TimeDomainProvider const * parent;
};
}
#endif /* __temporal_domain_provider_h__ */