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livetrax/gtk2_ardour/region_gain_line.cc

94 lines
2.3 KiB
C++
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#include <ardour/curve.h>
#include <ardour/audioregion.h>
#include "region_gain_line.h"
#include "regionview.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;
AudioRegionGainLine::AudioRegionGainLine (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.region.envelope_active()) {
trackview.session().add_undo( bind( mem_fun(rv.region, &AudioRegion::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"));
trackview.editor.current_session()->add_undo (get_memento());
if (!rv.region.envelope_active()) {
trackview.session().add_undo( bind( mem_fun(rv.region, &AudioRegion::set_envelope_active), false) );
trackview.session().add_redo( bind( mem_fun(rv.region, &AudioRegion::set_envelope_active), true) );
rv.region.set_envelope_active(true);
}
alist.erase (mr.start, mr.end);
trackview.editor.current_session()->add_redo_no_execute (get_memento());
trackview.editor.current_session()->commit_reversible_command ();
trackview.editor.current_session()->set_dirty ();
}
void
AudioRegionGainLine::end_drag (ControlPoint* cp)
{
if (!rv.region.envelope_active()) {
trackview.session().add_redo( bind( mem_fun(rv.region, &AudioRegion::set_envelope_active), true) );
rv.region.set_envelope_active(true);
}
AutomationLine::end_drag(cp);
}
// This is a copy from AutomationList
UndoAction
AudioRegionGainLine::get_memento ()
{
return alist.get_memento();
}