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livetrax/libs/ardour/pan_controllable.cc
Paul Davis 5535b994d3 new files
git-svn-id: svn://localhost/ardour2/branches/3.0@8533 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-01-19 15:58:13 +00:00

69 lines
1.8 KiB
C++

/*
Copyright (C) 2011 Paul Davis
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/pannable.h"
#include "ardour/panner.h"
#include "ardour/pan_controllable.h"
using namespace ARDOUR;
double
PanControllable::lower () const
{
switch (parameter().type()) {
case PanWidthAutomation:
return -1.0;
default:
return 0.0;
}
}
void
PanControllable::set_value (double v)
{
boost::shared_ptr<Panner> p = owner->panner();
if (!p) {
/* no panner: just do it */
AutomationControl::set_value (v);
return;
}
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::set_value (v);
}
}