first vaguely working version using PresentationInfo

remote control ID and "order keys" have been removed.

1 files changed, 121 insertions, 0 deletions

diff --git a/libs/ardour/presentation_info.cc b/libs/ardour/presentation_info.cc
new file mode 100644
index 0000000000..6ec45a7d04
--- /dev/null
+++ b/libs/ardour/presentation_info.cc
@@ -0,0 +1,121 @@
+/*
+    Copyright (C) 2016 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 <sstream>
+#include <typeinfo>
+
+#include <cassert>
+
+#include "pbd/enumwriter.h"
+#include "pbd/error.h"
+#include "pbd/failed_constructor.h"
+#include "pbd/xml++.h"
+
+#include "ardour/presentation_info.h"
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace PBD;
+using std::string;
+
+const PresentationInfo::order_t PresentationInfo::max_order = UINT32_MAX;
+const PresentationInfo::Flag PresentationInfo::Bus = PresentationInfo::Flag (PresentationInfo::AudioBus|PresentationInfo::MidiBus);
+const PresentationInfo::Flag PresentationInfo::Track = PresentationInfo::Flag (PresentationInfo::AudioTrack|PresentationInfo::MidiTrack);
+const PresentationInfo::Flag PresentationInfo::Route = PresentationInfo::Flag (PresentationInfo::Bus|PresentationInfo::Track);
+
+PresentationInfo::PresentationInfo (std::string const & str)
+{
+	if (parse (str)) {
+		throw failed_constructor ();
+	}
+}
+
+int
+PresentationInfo::parse (string const& str)
+{
+	std::stringstream s (str);
+
+	/* new school, segmented string "NNN:TYPE" */
+	string f;
+	char c;
+	s >> _order;
+	/* skip colon */
+	s >> c;
+	/* grab flags */
+	s >> f;
+	_flags = Flag (string_2_enum (f, _flags)|GroupOrderSet);
+	std::cerr << "Parsed [" << str << "] as " << _order << " + " << enum_2_string (_flags) << std::endl;
+	return 0;
+}
+
+int
+PresentationInfo::parse (uint32_t n, Flag f)
+{
+	if (n < UINT16_MAX) {
+		assert (f != Flag (0));
+		_order = n;
+		_flags = Flag (f|GroupOrderSet);
+	} else {
+		_order = (n & 0xffff);
+		_flags = Flag ((n >> 16)|GroupOrderSet);
+	}
+
+	return 0;
+}
+
+std::string
+PresentationInfo::to_string() const
+{
+	std::stringstream ss;
+
+	/* Do not save or selected hidden status, or group-order set bit */
+
+	Flag f = Flag (_flags & ~(Hidden|Selected|GroupOrderSet));
+
+	ss << _order << ':' << enum_2_string (f);
+
+	return ss.str();
+}
+
+PresentationInfo::Flag
+PresentationInfo::get_flags (XMLNode const& node)
+{
+	const XMLProperty *prop;
+	XMLNodeList nlist = node.children ();
+	XMLNodeConstIterator niter;
+	XMLNode *child;
+
+	for (niter = nlist.begin(); niter != nlist.end(); ++niter){
+		child = *niter;
+
+		if (child->name() == X_("PresentationInfo")) {
+			if ((prop = child->property (X_("value"))) != 0) {
+				PresentationInfo pi (prop->value());
+				return pi.flags ();
+			}
+		}
+	}
+	return Flag (0);
+}
+
+std::ostream&
+operator<<(std::ostream& o, ARDOUR::PresentationInfo const& rid)
+{
+	return o << rid.to_string ();
+}