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#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, Curve& c)
: AutomationLine (name, r.get_time_axis_view(), parent, c),
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, float fraction)
{
AutomationLine::start_drag(cp,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 = get_state();
if (!rv.audio_region()->envelope_active()) {
XMLNode &before = rv.audio_region()->get_state();
rv.audio_region()->set_envelope_active(true);
XMLNode &after = rv.audio_region()->get_state();
trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &before, &after));
}
alist.erase (mr.start, mr.end);
trackview.editor.current_session()->add_command (new MementoCommand<AudioRegionGainLine>(*this, &before, &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);
}
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