Add Import from session -functionality

git-svn-id: svn://localhost/ardour2/branches/3.0@3805 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 84 insertions, 0 deletions

diff --git a/libs/ardour/element_importer.cc b/libs/ardour/element_importer.cc
new file mode 100644
index 0000000000..0312f0ef15
--- /dev/null
+++ b/libs/ardour/element_importer.cc
@@ -0,0 +1,84 @@
+/*
+    Copyright (C) 2008 Paul Davis
+    Author: Sakari Bergen
+
+    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/element_importer.h>
+
+#include <sstream>
+#include <iomanip>
+
+#include <pbd/convert.h>
+#include <ardour/session.h>
+
+#include "i18n.h"
+
+using namespace PBD;
+using namespace ARDOUR;
+
+sigc::signal <std::pair<bool, string>, string, string> ElementImporter::Rename;
+sigc::signal <bool, string> ElementImporter::Prompt;
+
+ElementImporter::ElementImporter (XMLTree const & source, ARDOUR::Session & session) : 
+  source (source),
+  session(session),
+  queued (false),
+  _broken (false)
+{
+	// Get samplerate
+	XMLProperty *prop;
+	prop = source.root()->property ("sample-rate");
+	if (prop) {
+		std::istringstream iss (prop->value());
+		iss >> sample_rate;
+	}
+}
+
+string
+ElementImporter::smpte_to_string(SMPTE::Time & time) const
+{
+	std::ostringstream oss;
+	oss << std::setfill('0') << std::right <<
+	  std::setw(2) <<
+	  time.hours << ":" <<
+	  std::setw(2) <<
+	  time.minutes << ":" <<
+	  std::setw(2) <<
+	  time.seconds << ":" <<
+	  std::setw(2) <<
+	  time.frames;
+	
+	return oss.str();
+}
+
+nframes_t
+ElementImporter::rate_convert_samples (nframes_t samples) const
+{
+	if (sample_rate == session.frame_rate()) {
+		return samples;
+	}
+	
+	// +0.5 for proper rounding
+	return static_cast<nframes_t> (samples * (static_cast<double> (session.nominal_frame_rate()) / sample_rate) + 0.5);
+}
+
+string
+ElementImporter::rate_convert_samples (string const & samples) const
+{
+	return to_string (rate_convert_samples (atoi (samples)), std::dec);
+}