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livetrax/gtk2_ardour/region_gain_line.cc
David Robillard 24ccaac67e Further automation refactoring - bring in the concept of Controllable, work towards
making automation + GUI + play/write/touch generic and easily reusable.
Added bar controller to automation track controls (mostly relevant for MIDI CC, but added for gain and pan too Just Because).
Fixed glaring "redirect" list errors.
Fix plugin controls/automation loading.


git-svn-id: svn://localhost/ardour2/trunk@2080 d708f5d6-7413-0410-9779-e7cbd77b26cf
2007-06-29 04:02:58 +00:00

111 lines
3.2 KiB
C++

/*
Copyright (C) 2000-2007 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/curve.h>
#include <ardour/audioregion.h>
#include <pbd/memento_command.h>
#include "region_gain_line.h"
#include "audio_region_view.h"
#include "utils.h"
#include "time_axis_view.h"
#include "editor.h"
#include <ardour/session.h>
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
AudioRegionGainLine::AudioRegionGainLine (const string & name, Session& s, AudioRegionView& r, ArdourCanvas::Group& parent, boost::shared_ptr<AutomationList> l)
: AutomationLine (name, r.get_time_axis_view(), parent, l),
session (s),
rv (r)
{
group->raise_to_top ();
set_verbose_cursor_uses_gain_mapping (true);
terminal_points_can_slide = false;
}
void
AudioRegionGainLine::view_to_model_y (double& y)
{
y = slider_position_to_gain (y);
y = max (0.0, y);
y = min (2.0, y);
}
void
AudioRegionGainLine::model_to_view_y (double& y)
{
y = gain_to_slider_position (y);
}
void
AudioRegionGainLine::start_drag (ControlPoint* cp, nframes_t x, float fraction)
{
AutomationLine::start_drag (cp, x, fraction);
if (!rv.audio_region()->envelope_active()) {
trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &rv.audio_region()->get_state(), 0));
rv.audio_region()->set_envelope_active(false);
}
}
// This is an extended copy from AutomationList
void
AudioRegionGainLine::remove_point (ControlPoint& cp)
{
ModelRepresentation mr;
model_representation (cp, mr);
trackview.editor.current_session()->begin_reversible_command (_("remove control point"));
XMLNode &before = alist->get_state();
if (!rv.audio_region()->envelope_active()) {
XMLNode &region_before = rv.audio_region()->get_state();
rv.audio_region()->set_envelope_active(true);
XMLNode &region_after = rv.audio_region()->get_state();
trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &region_before, &region_after));
}
alist->erase (mr.start, mr.end);
trackview.editor.current_session()->add_command (new MementoCommand<AutomationList>(*alist.get(), &before, &alist->get_state()));
trackview.editor.current_session()->commit_reversible_command ();
trackview.editor.current_session()->set_dirty ();
}
void
AudioRegionGainLine::end_drag (ControlPoint* cp)
{
if (!rv.audio_region()->envelope_active()) {
rv.audio_region()->set_envelope_active(true);
trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), 0, &rv.audio_region()->get_state()));
}
AutomationLine::end_drag(cp);
}