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objects don't have a time domain, they have a time domain provider (libs)

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This commit is contained in:
Paul Davis
2023-07-21 09:56:42 -06:00
parent e430b54554
commit 3b565693c8
74 changed files with 268 additions and 244 deletions
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52
libs/temporal/temporal/domain_provider.h
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@@ -19,26 +19,66 @@
#ifndef __temporal_domain_provider_h__
#define __temporal_domain_provider_h__
#include "pbd/signals.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) {}
explicit TimeDomainProvider () : have_domain (false), parent (nullptr) {}
explicit TimeDomainProvider (TimeDomain td) : have_domain (true), domain (td), parent (nullptr) {}
TimeDomainProvider (TimeDomain td, TimeDomainProvider const & p) : have_domain (true), domain (td), parent (&p) { listen(); }
TimeDomainProvider (TimeDomainProvider const & other) : have_domain (other.have_domain), domain (other.domain), parent (other.parent) { listen(); }
virtual ~TimeDomainProvider() {}
TimeDomainProvider& operator= (TimeDomainProvider const & other) {
if (this != &other) {
parent_connection.disconnect ();
have_domain = other.have_domain;
domain = other.domain;
parent = other.parent;
listen ();
}
return *this;
}
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; }
void clear_time_domain () { have_domain = false; TimeDomainChanged(); /* EMIT SIGNAL */ }
void set_time_domain (TimeDomain td) { have_domain = true; domain = td; TimeDomainChanged(); /* EMIT SIGNAL */}
bool has_parent() const { return (bool) parent; }
void clear_time_domain_parent () { parent = nullptr; TimeDomainChanged (); /* EMIT SIGNAL */ }
void set_time_domain_parent (TimeDomainProvider const & p) {
parent_connection.disconnect ();
TimeDomain old_domain = time_domain();
parent = &p;
TimeDomain new_domain = time_domain ();
if (old_domain != new_domain) {
TimeDomainChanged ();
}
}
mutable PBD::Signal0<void> TimeDomainChanged;
virtual void time_domain_changed() {
/* Forward a time domain change to children */
TimeDomainChanged();
}
protected:
void listen () {
if (parent) {
parent->TimeDomainChanged.connect_same_thread (parent_connection, boost::bind (&TimeDomainProvider::time_domain_changed, this));
}
}
private:
bool have_domain;
TimeDomain domain;
TimeDomainProvider const * parent;
PBD::ScopedConnection parent_connection;
};
}