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livetrax/gtk2_ardour/midi_automation_line.cc

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/*
* Copyright (C) 2010-2012 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2010-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2010-2017 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2013-2019 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "ardour/midi_automation_list_binder.h"
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#include "ardour/midi_region.h"
#include "midi++/midnam_patch.h"
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#include "midi_automation_line.h"
#include "midi_time_axis.h"
#include "pbd/i18n.h"
using namespace std;
MidiAutomationLine::MidiAutomationLine (
const std::string& name,
TimeAxisView& tav,
ArdourCanvas::Item& parent,
std::shared_ptr<ARDOUR::AutomationList> list,
std::shared_ptr<ARDOUR::MidiRegion> region,
Evoral::Parameter parameter)
: AutomationLine (name, tav, parent, list, parameter)
, _region (region)
, _parameter (parameter)
{
}
MementoCommandBinder<ARDOUR::AutomationList>*
MidiAutomationLine::memento_command_binder ()
{
/* some weirdness here since _region->midi_source() returns a
* shared_ptr<> but the binder accepts a reference.
*/
return new ARDOUR::MidiAutomationListBinder (*(_region->midi_source().get()), _parameter);
}
Temporal::timepos_t
MidiAutomationLine::get_origin() const
{
/* Events in the automation list are relative to the start of the
source, not the start of the region, so we need to use the
position-of-the-start-of-the-source, rather than just the
position-of-the-region.
*/
return _region->source_position();
}
string
MidiAutomationLine::get_verbose_cursor_string (double fraction) const
{
using namespace MIDI::Name;
if (_parameter.type() != ARDOUR::MidiCCAutomation) {
return AutomationLine::get_verbose_cursor_string(fraction);
}
MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(trackview.get_parent());
if (!mtv) {
return AutomationLine::get_verbose_cursor_string(fraction);
}
const uint8_t channel = mtv->get_preferred_midi_channel();
std::shared_ptr<const ValueNameList> value_names = mtv->route()->instrument_info().value_name_list_by_control (channel, _parameter.id());
if (!value_names) {
return AutomationLine::get_verbose_cursor_string(fraction);
}
const uint16_t cc_value = floor(std::max(std::min(fraction * 127.0, 127.0), 0.0));
std::shared_ptr<const Value> value = value_names->max_value_below(cc_value);
if (!value) {
return AutomationLine::get_verbose_cursor_string(fraction);
}
return value->name();
}