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livetrax/libs/ardour/pan_controllable.cc

72 lines
2.0 KiB
C++

/*
* Copyright (C) 2011-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2017-2019 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/pannable.h"
#include "ardour/panner.h"
#include "ardour/pan_controllable.h"
using namespace ARDOUR;
void
PanControllable::actually_set_value (double v, Controllable::GroupControlDisposition group_override)
{
v = std::min (upper (), std::max (lower (), v));
if (!owner || !owner->panner()) {
/* no panner: just do it */
AutomationControl::actually_set_value (v, group_override);
return;
}
boost::shared_ptr<Panner> p = owner->panner();
bool can_set = false;
switch (parameter().type()) {
case PanWidthAutomation:
can_set = p->clamp_width (v);
break;
case PanAzimuthAutomation:
can_set = p->clamp_position (v);
break;
case PanElevationAutomation:
can_set = p->clamp_elevation (v);
break;
default:
break;
}
if (can_set) {
AutomationControl::actually_set_value (v, group_override);
}
}
std::string
PanControllable::get_user_string () const
{
if (!owner || !owner->panner()) {
/* assume PanAzimuthAutomation, 0..1 */
float v = get_value ();
char buf[32];
snprintf(buf, sizeof(buf), "%.0f%%", 100.f * v);
return buf;
}
return owner->panner()->value_as_string (boost::dynamic_pointer_cast<const AutomationControl>(shared_from_this()));
}