libs/ardour/midi_automation_list_binder.cc

   1 /*
   2     Copyright (C) 2010 Paul Davis
   3
   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.
   8
   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.
  13
  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.
  17
  18 */
  19
  20 #include "ardour/midi_automation_list_binder.h"
  21 #include "ardour/automation_list.h"
  22 #include "ardour/automation_control.h"
  23 #include "ardour/midi_source.h"
  24 #include "ardour/midi_model.h"
  25
  26 using namespace ARDOUR;
  27
  28 MidiAutomationListBinder::MidiAutomationListBinder (boost::shared_ptr<MidiSource> s, Evoral::Parameter p)
  29         : _source (s)
  30         , _parameter (p)
  31 {
  32
  33 }
  34
  35 MidiAutomationListBinder::MidiAutomationListBinder (XMLNode* node, Session::SourceMap const & sources)
  36         : _parameter (0, 0, 0)
  37 {
  38         XMLProperty* source = node->property ("source-id");
  39         assert (source);
  40
  41         XMLProperty* parameter = node->property ("parameter");
  42         assert (parameter);
  43
  44         Session::SourceMap::const_iterator i = sources.find (PBD::ID (source->value()));
  45         assert (i != sources.end());
  46         _source = boost::dynamic_pointer_cast<MidiSource> (i->second);
  47
  48         _parameter = EventTypeMap::instance().new_parameter (parameter->value());
  49 }
  50
  51 AutomationList*
  52 MidiAutomationListBinder::get ()
  53 {
  54         boost::shared_ptr<MidiModel> model = _source->model ();
  55         assert (model);
  56
  57         boost::shared_ptr<AutomationControl> control = model->automation_control (_parameter);
  58         assert (control);
  59
  60         return control->alist().get();
  61 }
  62
  63 void
  64 MidiAutomationListBinder::add_state (XMLNode* node)
  65 {
  66         node->add_property ("source-id", _source->id().to_s());
  67         node->add_property ("parameter", EventTypeMap::instance().to_symbol (_parameter));
  68 }