gtk2_ardour/region_gain_line.cc

   1 /*
   2  * Copyright (C) 2005-2016 Paul Davis <paul@linuxaudiosystems.com>
   3  * Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
   4  * Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
   5  * Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
   6  * Copyright (C) 2008-2012 Carl Hetherington <carl@carlh.net>
   7  * Copyright (C) 2014-2015 Nick Mainsbridge <mainsbridge@gmail.com>
   8  * Copyright (C) 2014-2019 Robin Gareus <robin@gareus.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #include "evoral/Curve.h"
  26 #include "pbd/memento_command.h"
  27 #include "pbd/stateful_diff_command.h"
  28
  29 #include "ardour/audioregion.h"
  30 #include "ardour/session.h"
  31
  32 #include "control_point.h"
  33 #include "region_gain_line.h"
  34 #include "audio_region_view.h"
  35
  36 #include "time_axis_view.h"
  37 #include "editor.h"
  38 #include "gui_thread.h"
  39
  40 #include "pbd/i18n.h"
  41
  42 using namespace std;
  43 using namespace ARDOUR;
  44 using namespace PBD;
  45
  46 AudioRegionGainLine::AudioRegionGainLine (const string & name, AudioRegionView& r, ArdourCanvas::Container& parent, boost::shared_ptr<AutomationList> l)
  47         : AutomationLine (name, r.get_time_axis_view(), parent, l, l->parameter())
  48         , rv (r)
  49 {
  50         // If this isn't true something is horribly wrong, and we'll get catastrophic gain values
  51         assert(l->parameter().type() == EnvelopeAutomation);
  52
  53         _time_converter->set_origin_b (rv.region()->position());
  54
  55         r.region()->PropertyChanged.connect (_region_changed_connection, invalidator (*this), boost::bind (&AudioRegionGainLine::region_changed, this, _1), gui_context());
  56
  57         group->raise_to_top ();
  58         group->set_y_position (2);
  59         terminal_points_can_slide = false;
  60 }
  61
  62 void
  63 AudioRegionGainLine::start_drag_single (ControlPoint* cp, double x, float fraction)
  64 {
  65         AutomationLine::start_drag_single (cp, x, fraction);
  66
  67         // XXX Stateful need to capture automation curve data
  68
  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);
  72         }
  73 }
  74
  75 // This is an extended copy from AutomationList
  76 void
  77 AudioRegionGainLine::remove_point (ControlPoint& cp)
  78 {
  79         trackview.editor().begin_reversible_command (_("remove control point"));
  80         XMLNode &before = alist->get_state();
  81
  82         if (!rv.audio_region()->envelope_active()) {
  83                 rv.audio_region()->clear_changes ();
  84                 rv.audio_region()->set_envelope_active(true);
  85                 trackview.session()->add_command(new StatefulDiffCommand (rv.audio_region()));
  86         }
  87
  88         trackview.editor ().get_selection ().clear_points ();
  89         alist->erase (cp.model());
  90
  91         trackview.editor().session()->add_command (new MementoCommand<AutomationList>(*alist.get(), &before, &alist->get_state()));
  92         trackview.editor().commit_reversible_command ();
  93         trackview.editor().session()->set_dirty ();
  94 }
  95
  96 void
  97 AudioRegionGainLine::end_drag (bool with_push, uint32_t final_index)
  98 {
  99         if (!rv.audio_region()->envelope_active()) {
 100                 rv.audio_region()->set_envelope_active(true);
 101                 trackview.session()->add_command(new MementoCommand<AudioRegion>(*(rv.audio_region().get()), 0, &rv.audio_region()->get_state()));
 102         }
 103
 104         AutomationLine::end_drag (with_push, final_index);
 105 }
 106
 107 void
 108 AudioRegionGainLine::region_changed (const PropertyChange& what_changed)
 109 {
 110         PropertyChange interesting_stuff;
 111
 112         interesting_stuff.add (ARDOUR::Properties::start);
 113         interesting_stuff.add (ARDOUR::Properties::position);
 114
 115         if (what_changed.contains (interesting_stuff)) {
 116                 _time_converter->set_origin_b (rv.region()->position());
 117         }
 118
 119         interesting_stuff.clear ();
 120         interesting_stuff.add (ARDOUR::Properties::start);
 121         interesting_stuff.add (ARDOUR::Properties::length);
 122
 123         if (what_changed.contains (interesting_stuff)) {
 124                 reset ();
 125         }
 126 }