Factor out sequencing related things into an independant new library: "evoral".

Anything related to the storage of events/values over a range of time lives in evoral. This includes MidiModel (Evoral::Sequence) and automation data (AutomationList (Evoral::ControlList), Automatable (Evoral::ControlSet), etc). libs/evoral synced with http://svn.drobilla.net/lad/trunk/evoral r1511. git-svn-id: svn://localhost/ardour2/branches/3.0@3754 d708f5d6-7413-0410-9779-e7cbd77b26cf
2025-12-08 15:54:57 +01:00 · 2008-09-19 00:47:49 +00:00 · 2008-09-19 00:47:49 +00:00 · d357eca668
commit d357eca668
parent 3d976c5b72
102 changed files with 4640 additions and 3217 deletions
--- a/libs/evoral/src/ControlSet.cpp
+++ b/libs/evoral/src/ControlSet.cpp
@ -0,0 +1,139 @@
+/* This file is part of Evoral.
+ * Copyright (C) 2008 Dave Robillard <http://drobilla.net>
+ * Copyright (C) 2000-2008 Paul Davis
+ * 
+ * Evoral 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.
+ * 
+ * Evoral 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 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.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <limits>
+#include <evoral/ControlSet.hpp>
+#include <evoral/ControlList.hpp>
+#include <evoral/Control.hpp>
+#include <evoral/Event.hpp>
+
+using namespace std;
+
+namespace Evoral {
+
+ControlSet::ControlSet()
+{
+}
+
+void
+ControlSet::add_control(boost::shared_ptr<Control> ac)
+{
+	_controls[ac->parameter()] = ac;
+}
+
+void
+ControlSet::what_has_data (set<Parameter>& s) const
+{
+	Glib::Mutex::Lock lm (_control_lock);
+	Controls::const_iterator li;
+	
+	// FIXME: correct semantics?
+	for (li = _controls.begin(); li != _controls.end(); ++li) {
+		s.insert  ((*li).first);
+	}
+}
+
+/** If \a create_if_missing is true, a control list will be created and returned
+ * if one does not already exists.  Otherwise NULL will be returned if a control list
+ * for \a parameter does not exist.
+ */
+boost::shared_ptr<Control>
+ControlSet::control (Parameter parameter, bool create_if_missing)
+{
+	Controls::iterator i = _controls.find(parameter);
+
+	if (i != _controls.end()) {
+		return i->second;
+
+	} else if (create_if_missing) {
+		boost::shared_ptr<ControlList> al (control_list_factory(parameter));
+		boost::shared_ptr<Control> ac(control_factory(al));
+		add_control(ac);
+		return ac;
+
+	} else {
+		//warning << "ControlList " << parameter.to_string() << " not found for " << _name << endmsg;
+		return boost::shared_ptr<Control>();
+	}
+}
+
+boost::shared_ptr<const Control>
+ControlSet::control (Parameter parameter) const
+{
+	Controls::const_iterator i = _controls.find(parameter);
+
+	if (i != _controls.end()) {
+		return i->second;
+	} else {
+		//warning << "ControlList " << parameter.to_string() << " not found for " << _name << endmsg;
+		return boost::shared_ptr<Control>();
+	}
+}
+
+bool
+ControlSet::find_next_event (nframes_t now, nframes_t end, ControlEvent& next_event) const
+{
+	Controls::const_iterator li;	
+
+	next_event.when = std::numeric_limits<nframes_t>::max();
+	
+  	for (li = _controls.begin(); li != _controls.end(); ++li) {
+		ControlList::const_iterator i;
+		boost::shared_ptr<const ControlList> alist (li->second->list());
+		ControlEvent cp (now, 0.0f);
+		
+ 		for (i = lower_bound (alist->begin(), alist->end(), &cp, ControlList::time_comparator);
+				i != alist->end() && (*i)->when < end; ++i) {
+ 			if ((*i)->when > now) {
+ 				break; 
+ 			}
+ 		}
+ 		
+ 		if (i != alist->end() && (*i)->when < end) {
+ 			if ((*i)->when < next_event.when) {
+ 				next_event.when = (*i)->when;
+ 			}
+ 		}
+ 	}
+
+ 	return next_event.when != std::numeric_limits<nframes_t>::max();
+}
+
+void
+ControlSet::clear ()
+{
+	Glib::Mutex::Lock lm (_control_lock);
+
+	for (Controls::iterator li = _controls.begin(); li != _controls.end(); ++li)
+		li->second->list()->clear();
+}
+	
+boost::shared_ptr<Control>
+ControlSet::control_factory(boost::shared_ptr<ControlList> list) const
+{
+	return boost::shared_ptr<Control>(new Control(list));
+}
+
+boost::shared_ptr<ControlList>
+ControlSet::control_list_factory(const Parameter& param) const
+{
+	return boost::shared_ptr<ControlList>(new ControlList(param));
+}
+
+
+} // namespace Evoral