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livetrax/libs/surfaces/us2400/jog_wheel.cc

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/*
* Copyright (C) 2017 Ben Loftis <ben@harrisonconsoles.com>
*
* 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 <cmath>
#include "ardour/session.h"
#include "jog_wheel.h"
#include "us2400_control_protocol.h"
#include "surface_port.h"
#include "controls.h"
#include "surface.h"
#include <algorithm>
using namespace ArdourSurface;
using namespace US2400;
JogWheel::JogWheel (US2400Protocol & mcp)
: _mcp (mcp)
, _mode (scroll)
{
}
void
JogWheel::set_mode (Mode m)
{
_mode = m;
}
void JogWheel::jog_event (float delta)
{
if (_mcp.zoom_mode()) {
if (delta > 0) {
for (unsigned int i = 0; i < fabs (delta); ++i) {
_mcp.ZoomIn();
}
} else {
for (unsigned int i = 0; i < fabs (delta); ++i) {
_mcp.ZoomOut();
}
}
return;
}
switch (_mode) {
case scroll:
_mcp.ScrollTimeline (delta/4.0);
break;
default:
break;
}
}