gtk2_ardour/midi_list_editor.cc

   1 /*
   2    Copyright (C) 2009 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 #include <cmath>
  20
  21 #include "evoral/midi_util.h"
  22
  23 #include "ardour/beats_frames_converter.h"
  24 #include "ardour/midi_region.h"
  25 #include "ardour/session.h"
  26 #include "ardour/tempo.h"
  27
  28 #include "midi_list_editor.h"
  29
  30 #include "i18n.h"
  31
  32 using namespace std;
  33 using namespace Gtk;
  34 using namespace Glib;
  35 using namespace ARDOUR;
  36
  37 MidiListEditor::MidiListEditor (Session* s, boost::shared_ptr<MidiRegion> r)
  38         : ArdourDialog (r->name(), false, false)
  39         , region (r)
  40 {
  41         set_session (s);
  42
  43         model = ListStore::create (columns);
  44         view.set_model (model);
  45
  46         view.signal_key_press_event().connect (sigc::mem_fun (*this, &MidiListEditor::key_press));
  47         view.signal_key_release_event().connect (sigc::mem_fun (*this, &MidiListEditor::key_release));
  48
  49         view.append_column (_("Start"), columns.start);
  50         view.append_column (_("Channel"), columns.channel);
  51         view.append_column (_("Num"), columns.note);
  52         view.append_column (_("Name"), columns.note_name);
  53         view.append_column (_("Vel"), columns.velocity);
  54         view.append_column (_("Length"), columns.length);
  55         view.append_column (_("End"), columns.end);
  56         view.set_headers_visible (true);
  57         view.set_name (X_("MidiListView"));
  58         view.set_rules_hint (true);
  59
  60         for (int i = 0; i < 6; ++i) {
  61                 CellRendererText* renderer = dynamic_cast<CellRendererText*>(view.get_column_cell_renderer (i));
  62                 renderer->property_editable() = true;
  63
  64                 renderer->signal_editing_started().connect (sigc::bind (sigc::mem_fun (*this, &MidiListEditor::editing_started), i));
  65                 renderer->signal_editing_canceled().connect (sigc::mem_fun (*this, &MidiListEditor::editing_canceled));
  66                 renderer->signal_edited().connect (sigc::mem_fun (*this, &MidiListEditor::edited));
  67         }
  68
  69         scroller.add (view);
  70         scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
  71
  72         redisplay_model ();
  73
  74         view.show ();
  75         scroller.show ();
  76
  77         get_vbox()->pack_start (scroller);
  78         set_size_request (400, 400);
  79 }
  80
  81 MidiListEditor::~MidiListEditor ()
  82 {
  83 }
  84
  85 bool
  86 MidiListEditor::key_press (GdkEventKey* ev)
  87 {
  88         bool editing = !_current_edit.empty();
  89         bool ret = false;
  90
  91         if (editing) {
  92                 switch (ev->keyval) {
  93                 case GDK_Tab:
  94                         break;
  95                 case GDK_Right:
  96                         break;
  97                 case GDK_Left:
  98                         break;
  99                 case GDK_Up:
 100                         break;
 101                 case GDK_Down:
 102                         break;
 103                 case GDK_Escape:
 104                         break;
 105                 }
 106         }
 107
 108         return ret;
 109 }
 110
 111 bool
 112 MidiListEditor::key_release (GdkEventKey* ev)
 113 {
 114         bool ret = false;
 115
 116         switch (ev->keyval) {
 117         case GDK_Delete:
 118                 delete_selected_note ();
 119                 ret = true;
 120                 break;
 121         default:
 122                 break;
 123         }
 124
 125         return ret;
 126 }
 127
 128 void
 129 MidiListEditor::delete_selected_note ()
 130 {
 131         Glib::RefPtr<TreeSelection> selection = view.get_selection();
 132         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
 133
 134         if (rows.empty()) {
 135                 return;
 136         }
 137
 138         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
 139         TreeIter iter;
 140
 141         /* selection mode is single, so rows.begin() is it */
 142
 143         if ((iter = model->get_iter (*i))) {
 144                 boost::shared_ptr<NoteType> note = (*iter)[columns._note];
 145                 cerr << "Would have deleted " << *note << endl;
 146         }
 147
 148 }
 149
 150 void
 151 MidiListEditor::editing_started (CellEditable*, const ustring& path, int colno)
 152 {
 153         _current_edit = path;
 154         cerr << "Now editing " << _current_edit << " Column " << colno << endl;
 155 }
 156
 157 void
 158 MidiListEditor::editing_canceled ()
 159 {
 160         _current_edit = "";
 161 }
 162
 163 void
 164 MidiListEditor::edited (const Glib::ustring& path, const Glib::ustring& /* text */)
 165 {
 166         TreeModel::iterator iter = model->get_iter (path);
 167
 168         cerr << "Edit at " << path << endl;
 169
 170         if (!iter) {
 171                 return;
 172         }
 173
 174         boost::shared_ptr<NoteType> note = (*iter)[columns._note];
 175
 176         cerr << "Edited " << *note << endl;
 177
 178         redisplay_model ();
 179
 180         /* keep selected row(s), move cursor there, to allow us to continue editing */
 181 }
 182
 183 void
 184 MidiListEditor::redisplay_model ()
 185 {
 186         view.set_model (Glib::RefPtr<Gtk::ListStore>(0));
 187         model->clear ();
 188
 189         if (_session) {
 190
 191                 BeatsFramesConverter conv (_session->tempo_map(), region->position());
 192                 MidiModel::Notes notes = region->midi_source(0)->model()->notes();
 193                 TreeModel::Row row;
 194                 stringstream ss;
 195
 196                 for (MidiModel::Notes::iterator i = notes.begin(); i != notes.end(); ++i) {
 197                         row = *(model->append());
 198                         row[columns.channel] = (*i)->channel() + 1;
 199                         row[columns.note_name] = Evoral::midi_note_name ((*i)->note());
 200                         row[columns.note] = (*i)->note();
 201                         row[columns.velocity] = (*i)->velocity();
 202
 203                         BBT_Time bbt;
 204                         double dur;
 205
 206                         _session->tempo_map().bbt_time (conv.to ((*i)->time()), bbt);
 207
 208                         ss.str ("");
 209                         ss << bbt;
 210                         row[columns.start] = ss.str();
 211
 212                         bbt.bars = 0;
 213                         dur = (*i)->end_time() - (*i)->time();
 214                         bbt.beats = floor (dur);
 215                         bbt.ticks = (uint32_t) lrint (fmod (dur, 1.0) * Meter::ticks_per_beat);
 216
 217                         _session->tempo_map().bbt_duration_at (region->position(), bbt, 0);
 218
 219                         ss.str ("");
 220                         ss << bbt;
 221                         row[columns.length] = ss.str();
 222
 223                         _session->tempo_map().bbt_time (conv.to ((*i)->end_time()), bbt);
 224
 225                         ss.str ("");
 226                         ss << bbt;
 227                         row[columns.end] = ss.str();
 228
 229                         row[columns._note] = (*i);
 230                 }
 231         }
 232
 233         view.set_model (model);
 234 }