From 544140df8be10ee4fd94a0bd083376bdd6861dd6 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Thu, 17 Jan 2008 02:45:35 +0000
Subject: Added missing files.

git-svn-id: svn://localhost/ardour2/trunk@2928 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/midi_stretch.cc | 108 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 108 insertions(+)
 create mode 100644 libs/ardour/midi_stretch.cc

(limited to 'libs/ardour/midi_stretch.cc')

diff --git a/libs/ardour/midi_stretch.cc b/libs/ardour/midi_stretch.cc
new file mode 100644
index 0000000000..f214bde0be
--- /dev/null
+++ b/libs/ardour/midi_stretch.cc
@@ -0,0 +1,108 @@
+/*
+    Copyright (C) 2008 Paul Davis 
+    Author:  Dave Robillard
+
+    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 <pbd/error.h>
+
+#include <ardour/types.h>
+#include <ardour/midi_stretch.h>
+#include <ardour/session.h>
+#include <ardour/midi_region.h>
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
+
+MidiStretch::MidiStretch (Session& s, TimeFXRequest& req)
+	: Filter (s)
+	, _request (req)
+{
+}
+
+MidiStretch::~MidiStretch ()
+{
+}
+
+int
+MidiStretch::run (boost::shared_ptr<Region> r)
+{
+	SourceList nsrcs;
+	char suffix[32];
+
+	boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(r);
+	if (!region)
+		return -1;
+
+	/* the name doesn't need to be super-precise, but allow for 2 fractional
+	   digits just to disambiguate close but not identical stretches.
+	*/
+	
+	snprintf (suffix, sizeof (suffix), "@%d", (int) floor (_request.time_fraction * 100.0f));
+	
+	string new_name = region->name();
+	string::size_type at = new_name.find ('@');
+
+	// remove any existing stretch indicator
+
+	if (at != string::npos && at > 2) {
+		new_name = new_name.substr (0, at - 1);
+	}
+
+	new_name += suffix;
+	
+	/* create new sources */
+	
+	if (make_new_sources (region, nsrcs, suffix))
+		return -1;
+
+	// FIXME: how to make a whole file region if it isn't?
+	//assert(region->whole_file());
+	
+	boost::shared_ptr<MidiSource> src = region->midi_source(0);
+	src->load_model();
+
+	boost::shared_ptr<MidiModel> old_model = src->model();
+
+	boost::shared_ptr<MidiSource> new_src = boost::dynamic_pointer_cast<MidiSource>(nsrcs[0]);
+	assert(new_src);
+
+	boost::shared_ptr<MidiModel> new_model = new_src->model();
+	new_model->start_write();
+	
+	for (MidiModel::const_iterator i = old_model->begin(); i != old_model->end(); ++i) {
+		const double new_time = i->time() * _request.time_fraction;
+		
+		// FIXME: double copy
+		MidiEvent ev = MidiEvent(*i, true);
+		ev.time() = new_time;
+		new_model->append(ev);
+	}
+
+	new_model->end_write();
+	new_model->set_edited(true);
+	
+	const int ret = finish (region, nsrcs, new_name);
+	
+	results[0]->set_length(r->length() * _request.time_fraction, NULL);
+
+	return ret;
+}
+
-- 
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