13
0
livetrax/gtk2_ardour/automation_gain_line.cc

59 lines
1.4 KiB
C++
Raw Normal View History

/*
Copyright (C) 2000-2003 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.
$Id$
*/
#include <sigc++/signal.h>
#include <ardour/curve.h>
#include <pbd/fastlog.h>
#include "public_editor.h"
#include "automation_gain_line.h"
#include "utils.h"
#include <ardour/session.h>
using namespace std;
using namespace ARDOUR;
AutomationGainLine::AutomationGainLine (string name, Session& s, TimeAxisView& tv, ArdourCanvas::Group& parent, Curve& c)
: AutomationLine (name, tv, parent, c),
session (s)
{
set_verbose_cursor_uses_gain_mapping (true);
}
void
AutomationGainLine::view_to_model_y (double& y)
{
y = slider_position_to_gain (y);
y = max (0.0, y);
y = min (2.0, y);
}
void
AutomationGainLine::model_to_view_y (double& y)
{
y = gain_to_slider_position (y);
}