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 "evoral/Curve.hpp"
21 #include "pbd/memento_command.h"
22 #include "pbd/stateful_diff_command.h"
24 #include "ardour/audioregion.h"
25 #include "ardour/session.h"
27 #include "control_point.h"
28 #include "region_gain_line.h"
29 #include "audio_region_view.h"
31 #include "time_axis_view.h"
37 using namespace ARDOUR;
40 AudioRegionGainLine::AudioRegionGainLine (const string & name, AudioRegionView& r, ArdourCanvas::Container& parent, boost::shared_ptr<AutomationList> l)
41 : AutomationLine (name, r.get_time_axis_view(), parent, l)
44 // If this isn't true something is horribly wrong, and we'll get catastrophic gain values
45 assert(l->parameter().type() == EnvelopeAutomation);
47 _time_converter->set_origin_b (r.region()->position() - r.region()->start());
49 group->raise_to_top ();
50 group->set_y_position (2);
51 set_uses_gain_mapping (true);
52 terminal_points_can_slide = false;
56 AudioRegionGainLine::start_drag_single (ControlPoint* cp, double x, float fraction)
58 AutomationLine::start_drag_single (cp, x, fraction);
60 // XXX Stateful need to capture automation curve data
62 if (!rv.audio_region()->envelope_active()) {
63 trackview.session()->add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), &rv.audio_region()->get_state(), 0));
64 rv.audio_region()->set_envelope_active(false);
68 // This is an extended copy from AutomationList
70 AudioRegionGainLine::remove_point (ControlPoint& cp)
72 trackview.editor().session()->begin_reversible_command (_("remove control point"));
73 XMLNode &before = alist->get_state();
75 if (!rv.audio_region()->envelope_active()) {
76 rv.audio_region()->clear_changes ();
77 rv.audio_region()->set_envelope_active(true);
78 trackview.session()->add_command(new StatefulDiffCommand (rv.audio_region()));
81 alist->erase (cp.model());
83 trackview.editor().session()->add_command (new MementoCommand<AutomationList>(*alist.get(), &before, &alist->get_state()));
84 trackview.editor().session()->commit_reversible_command ();
85 trackview.editor().session()->set_dirty ();
89 AudioRegionGainLine::end_drag (bool with_push, uint32_t final_index)
91 if (!rv.audio_region()->envelope_active()) {
92 rv.audio_region()->set_envelope_active(true);
93 trackview.session()->add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), 0, &rv.audio_region()->get_state()));
96 AutomationLine::end_drag (with_push, final_index);