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livetrax/gtk2_ardour/region_gain_line.cc
Hans Fugal b7bffbe7a2 r191@gandalf: fugalh | 2006-07-24 19:50:10 -0600
All the obvious MementoCommand grunt work. Now there's some
 add_undo/add_redo_no_execute sprinkled around where one is separated from the
 other (e.g. in different callbacks) or perhaps even where there's only an undo
 and no redo. Also some sigc-based undo/redo pairs that probably need their own
 Command class.


git-svn-id: svn://localhost/ardour2/branches/undo@692 d708f5d6-7413-0410-9779-e7cbd77b26cf
2006-07-25 01:50:20 +00:00

95 lines
2.3 KiB
C++

#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;
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.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"));
XMLNode &before = get_state();
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_command (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.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();
}