rollback to 3428, before the mysterious removal of libs/* at 3431/3432

git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 126 insertions, 0 deletions

diff --git a/libs/ardour/port_set.cc b/libs/ardour/port_set.cc
new file mode 100644
index 0000000000..3182c2b959
--- /dev/null
+++ b/libs/ardour/port_set.cc
@@ -0,0 +1,126 @@
+/*
+    Copyright (C) 2006 Paul Davis 
+    
+    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.
+*/
+
+#include <ardour/port_set.h>
+
+namespace ARDOUR {
+
+PortSet::PortSet()
+{
+	for (size_t i=0; i < DataType::num_types; ++i)
+		_ports.push_back( PortVec() );
+}
+
+static bool sort_ports_by_name (Port* a, Port* b)
+{
+	return (a->name() < b->name());
+}
+
+void
+PortSet::add(Port* port)
+{
+	PortVec& v = _ports[port->type()];
+	
+	v.push_back(port);
+	sort(v.begin(), v.end(), sort_ports_by_name);
+
+	_count.set(port->type(), _count.get(port->type()) + 1);
+
+	assert(_count.get(port->type()) == _ports[port->type()].size());
+}
+
+bool
+PortSet::remove(Port* port)
+{
+	for (std::vector<PortVec>::iterator l = _ports.begin(); l != _ports.end(); ++l) {
+		PortVec::iterator i = find(l->begin(), l->end(), port);
+		if (i != l->end()) {
+			l->erase(i);
+			_count.set(port->type(), _count.get(port->type()) - 1);
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/** Get the total number of ports (of all types) in the PortSet
+ */
+size_t
+PortSet::num_ports() const
+{
+	size_t ret = 0;
+
+	for (std::vector<PortVec>::const_iterator l = _ports.begin(); l != _ports.end(); ++l)
+		ret += (*l).size();
+
+	return ret;
+}
+
+bool
+PortSet::contains(const Port* port) const
+{
+	for (std::vector<PortVec>::const_iterator l = _ports.begin(); l != _ports.end(); ++l)
+		if (find((*l).begin(), (*l).end(), port) != (*l).end())
+			return true;
+
+	return false;
+}
+
+Port*
+PortSet::port(size_t n) const
+{
+	// This is awesome.  Awesomely slow.
+	
+	size_t size_so_far = 0;
+
+	for (std::vector<PortVec>::const_iterator l = _ports.begin(); l != _ports.end(); ++l) {
+		if (n < size_so_far + (*l).size())
+			return (*l)[n - size_so_far];
+		else
+			size_so_far += (*l).size();
+	}
+
+	return NULL; // n out of range
+}
+
+Port*
+PortSet::port(DataType type, size_t n) const
+{
+	if (type == DataType::NIL) {
+		return port(n);
+	} else {
+		const PortVec& v = _ports[type];
+		assert(n < v.size());
+		return v[n];
+	}
+}
+
+AudioPort*
+PortSet::nth_audio_port(size_t n) const
+{
+	return dynamic_cast<AudioPort*>(port(DataType::AUDIO, n));
+}
+
+MidiPort*
+PortSet::nth_midi_port(size_t n) const
+{
+	return dynamic_cast<MidiPort*>(port(DataType::MIDI, n));
+}
+
+} // namepace ARDOUR