2 Copyright (C) 2000-2007 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <ardour/curve.h>
21 #include <ardour/audioregion.h>
22 #include <pbd/memento_command.h>
24 #include "region_gain_line.h"
25 #include "audio_region_view.h"
28 #include "time_axis_view.h"
31 #include <ardour/session.h>
38 using namespace ARDOUR;
41 AudioRegionGainLine::AudioRegionGainLine (const string & name, Session& s, AudioRegionView& r, ArdourCanvas::Group& parent, Curve& c)
42 : AutomationLine (name, r.get_time_axis_view(), parent, c),
46 group->raise_to_top ();
47 set_verbose_cursor_uses_gain_mapping (true);
48 terminal_points_can_slide = false;
52 AudioRegionGainLine::view_to_model_y (double& y)
54 y = slider_position_to_gain (y);
60 AudioRegionGainLine::model_to_view_y (double& y)
62 y = gain_to_slider_position (y);
66 AudioRegionGainLine::start_drag (ControlPoint* cp, nframes_t x, float fraction)
68 AutomationLine::start_drag (cp, x, fraction);
69 if (!rv.audio_region()->envelope_active()) {
70 trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &rv.audio_region()->get_state(), 0));
71 rv.audio_region()->set_envelope_active(false);
75 // This is an extended copy from AutomationList
77 AudioRegionGainLine::remove_point (ControlPoint& cp)
79 ModelRepresentation mr;
81 model_representation (cp, mr);
83 trackview.editor.current_session()->begin_reversible_command (_("remove control point"));
84 XMLNode &before = alist.get_state();
86 if (!rv.audio_region()->envelope_active()) {
87 XMLNode ®ion_before = rv.audio_region()->get_state();
88 rv.audio_region()->set_envelope_active(true);
89 XMLNode ®ion_after = rv.audio_region()->get_state();
90 trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), ®ion_before, ®ion_after));
93 alist.erase (mr.start, mr.end);
95 trackview.editor.current_session()->add_command (new MementoCommand<AutomationList>(alist, &before, &alist.get_state()));
96 trackview.editor.current_session()->commit_reversible_command ();
97 trackview.editor.current_session()->set_dirty ();
101 AudioRegionGainLine::end_drag (ControlPoint* cp)
103 if (!rv.audio_region()->envelope_active()) {
104 rv.audio_region()->set_envelope_active(true);
105 trackview.session().add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), 0, &rv.audio_region()->get_state()));
108 AutomationLine::end_drag(cp);