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livetrax/libs/ardour/tempo_map_importer.cc

103 lines
2.5 KiB
C++

/*
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/tempo_map_importer.h"
#include <sstream>
#include "ardour/session.h"
#include "ardour/tempo.h"
#include "pbd/failed_constructor.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace ARDOUR;
/**** Handler ***/
TempoMapImportHandler::TempoMapImportHandler (XMLTree const & source, Session & session) :
ElementImportHandler (source, session)
{
XMLNode const * root = source.root();
XMLNode const * tempo_map;
if (!(tempo_map = root->child (X_("TempoMap")))) {
throw failed_constructor();
}
elements.push_back (ElementPtr ( new TempoMapImporter (source, session, *tempo_map)));
}
string
TempoMapImportHandler::get_info () const
{
return _("Tempo map");
}
/*** TempoMapImporter ***/
TempoMapImporter::TempoMapImporter (XMLTree const & source, Session & session, XMLNode const & node) :
ElementImporter (source, session),
xml_tempo_map (node)
{
name = _("Tempo Map");
}
string
TempoMapImporter::get_info () const
{
std::ostringstream oss;
unsigned int tempos = 0;
unsigned int meters = 0;
XMLNodeList children = xml_tempo_map.children();
for (XMLNodeIterator it = children.begin(); it != children.end(); it++) {
if ((*it)->name() == "Tempo") {
tempos++;
} else if ((*it)->name() == "Meters") {
meters++;
}
}
// return info
oss << _("Tempo marks: ") << tempos << _("\nMeter marks: ") << meters;
return oss.str();
}
bool
TempoMapImporter::_prepare_move ()
{
// Prompt user for verification
boost::optional<bool> replace = Prompt (_("This will replace the current tempo map!\nAre you sure you want to do this?"));
return replace.get_value_or (false);
}
void
TempoMapImporter::_cancel_move ()
{
}
void
TempoMapImporter::_move ()
{
session.tempo_map().set_state (xml_tempo_map, Stateful::current_state_version);
}