gtk2_ardour/midi_streamview.cc

   1 /*
   2     Copyright (C) 2001, 2006 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 #include <cassert>
  21
  22 #include <gtkmm.h>
  23
  24 #include <gtkmm2ext/gtk_ui.h>
  25
  26 #include <ardour/midi_playlist.h>
  27 #include <ardour/midi_region.h>
  28 #include <ardour/midi_source.h>
  29 #include <ardour/midi_diskstream.h>
  30 #include <ardour/midi_track.h>
  31 //#include <ardour/playlist_templates.h>
  32 #include <ardour/source.h>
  33
  34 #include "midi_streamview.h"
  35 #include "regionview.h"
  36 //#include "midi_regionview.h"
  37 #include "midi_time_axis.h"
  38 #include "canvas-simplerect.h"
  39 #include "region_selection.h"
  40 #include "selection.h"
  41 #include "public_editor.h"
  42 #include "ardour_ui.h"
  43 #include "rgb_macros.h"
  44 #include "gui_thread.h"
  45 #include "utils.h"
  46 #include "color.h"
  47
  48 using namespace ARDOUR;
  49 using namespace PBD;
  50 using namespace Editing;
  51
  52 MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
  53         : StreamView (tv)
  54 {
  55         region_color = _trackview.color();
  56
  57         if (tv.is_midi_track())
  58                 stream_base_color = color_map[cMidiTrackBase];
  59         else
  60                 stream_base_color = color_map[cMidiBusBase];
  61
  62         /* set_position() will position the group */
  63
  64         canvas_group = new ArdourCanvas::Group(*_trackview.canvas_display);
  65
  66         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  67         canvas_rect->property_x1() = 0.0;
  68         canvas_rect->property_y1() = 0.0;
  69         canvas_rect->property_x2() = 1000000.0;
  70         canvas_rect->property_y2() = (double) tv.height;
  71         canvas_rect->property_outline_color_rgba() = color_map[cMidiTrackOutline];
  72         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  73         canvas_rect->property_fill_color_rgba() = stream_base_color;
  74
  75         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  76
  77         _samples_per_unit = _trackview.editor.get_current_zoom();
  78
  79         if (_trackview.is_midi_track()) {
  80                 _trackview.midi_track()->DiskstreamChanged.connect (mem_fun (*this, &MidiStreamView::diskstream_changed));
  81                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &MidiStreamView::transport_changed));
  82                 _trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &MidiStreamView::rec_enable_changed));
  83                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &MidiStreamView::sess_rec_enable_changed));
  84         }
  85
  86         rec_updating = false;
  87         rec_active = false;
  88         use_rec_regions = tv.editor.show_waveforms_recording ();
  89
  90         ColorChanged.connect (mem_fun (*this, &MidiStreamView::color_handler));
  91 }
  92
  93 MidiStreamView::~MidiStreamView ()
  94 {
  95         undisplay_diskstream ();
  96         delete canvas_group;
  97 }
  98
  99
 100 void
 101 MidiStreamView::add_region_view_internal (Region *r, bool wait_for_waves)
 102 {
 103 #if 0
 104         ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::add_region_view), r));
 105
 106         MidiRegion* region = dynamic_cast<MidiRegion*> (r);
 107
 108         if (region == 0) {
 109                 return;
 110         }
 111
 112         MidiRegionView *region_view;
 113         list<RegionView *>::iterator i;
 114
 115         for (i = region_views.begin(); i != region_views.end(); ++i) {
 116                 if (&(*i)->region() == r) {
 117
 118                         /* great. we already have a MidiRegionView for this Region. use it again. */
 119
 120                         (*i)->set_valid (true);
 121                         return;
 122                 }
 123         }
 124
 125         /* FIXME
 126         switch (_trackview.midi_track()->mode()) {
 127         case Normal:
 128                 region_view = new MidiRegionView (canvas_group, _trackview, *region,
 129                                                    _samples_per_unit, region_color);
 130                 break;
 131         case Destructive:
 132                 region_view = new TapeMidiRegionView (canvas_group, _trackview, *region,
 133                                                        _samples_per_unit, region_color);
 134                 break;
 135         }
 136         */
 137         region_view = new MidiRegionView (canvas_group, _trackview, *region,
 138                                            _samples_per_unit, region_color);
 139
 140         region_view->init (region_color, wait_for_waves);
 141         region_views.push_front (region_view);
 142
 143         /* catch regionview going away */
 144
 145         region->GoingAway.connect (mem_fun (*this, &MidiStreamView::remove_region_view));
 146
 147         RegionViewAdded (region_view);
 148 #endif
 149 }
 150
 151 // FIXME: code duplication with AudioStreamVIew
 152 void
 153 MidiStreamView::redisplay_diskstream ()
 154 {
 155         list<RegionView *>::iterator i, tmp;
 156
 157         for (i = region_views.begin(); i != region_views.end(); ++i) {
 158                 (*i)->set_valid (false);
 159         }
 160
 161         if (_trackview.is_midi_track()) {
 162                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 163         }
 164
 165         for (i = region_views.begin(); i != region_views.end(); ) {
 166                 tmp = i;
 167                 tmp++;
 168
 169                 if (!(*i)->is_valid()) {
 170                         delete *i;
 171                         region_views.erase (i);
 172                 }
 173
 174                 i = tmp;
 175         }
 176
 177         /* now fix layering */
 178
 179         playlist_modified ();
 180 }
 181
 182
 183 void
 184 MidiStreamView::setup_rec_box ()
 185 {
 186 #if 0
 187         // cerr << _trackview.name() << " streamview SRB\n";
 188
 189         if (_trackview.session().transport_rolling()) {
 190
 191                 // cerr << "\trolling\n";
 192
 193                 if (!rec_active &&
 194                     _trackview.session().record_status() == Session::Recording &&
 195                     _trackview.get_diskstream()->record_enabled()) {
 196
 197                         if (_trackview.midi_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 198
 199                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 200
 201                                 MidiRegion::SourceList sources;
 202
 203                                 // FIXME
 204                                 MidiDiskstream* ads = dynamic_cast<MidiDiskstream*>(_trackview.get_diskstream());
 205                                 assert(ads);
 206
 207                                 // handle multi
 208
 209                                 jack_nframes_t start = 0;
 210                                 if (rec_regions.size() > 0) {
 211                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 212                                 }
 213
 214                                 MidiRegion * region = new MidiRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
 215                                 region->set_position (_trackview.session().transport_frame(), this);
 216                                 rec_regions.push_back (region);
 217                                 /* catch it if it goes away */
 218                                 region->GoingAway.connect (mem_fun (*this, &MidiStreamView::remove_rec_region));
 219
 220                                 /* we add the region later */
 221                         }
 222
 223                         /* start a new rec box */
 224
 225                         MidiTrack* at;
 226
 227                         at = _trackview.midi_track(); /* we know what it is already */
 228                         MidiDiskstream& ds = at->midi_diskstream();
 229                         jack_nframes_t frame_pos = ds.current_capture_start ();
 230                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 231                         gdouble xend;
 232                         uint32_t fill_color;
 233
 234                         switch (_trackview.midi_track()->mode()) {
 235                         case Normal:
 236                                 xend = xstart;
 237                                 fill_color = color_map[cRecordingRectFill];
 238                                 break;
 239
 240                         case Destructive:
 241                                 xend = xstart + 2;
 242                                 fill_color = color_map[cRecordingRectFill];
 243                                 /* make the recording rect translucent to allow
 244                                    the user to see the peak data coming in, etc.
 245                                 */
 246                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 247                                 break;
 248                         }
 249
 250                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 251                         rec_rect->property_x1() = xstart;
 252                         rec_rect->property_y1() = 1.0;
 253                         rec_rect->property_x2() = xend;
 254                         rec_rect->property_y2() = (double) _trackview.height - 1;
 255                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 256                         rec_rect->property_fill_color_rgba() = fill_color;
 257
 258                         RecBoxInfo recbox;
 259                         recbox.rectangle = rec_rect;
 260                         recbox.start = _trackview.session().transport_frame();
 261                         recbox.length = 0;
 262
 263                         rec_rects.push_back (recbox);
 264
 265                         screen_update_connection.disconnect();
 266                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
 267                         rec_updating = true;
 268                         rec_active = true;
 269
 270                 } else if (rec_active &&
 271                            (_trackview.session().record_status() != Session::Recording ||
 272                             !_trackview.get_diskstream()->record_enabled())) {
 273
 274                         screen_update_connection.disconnect();
 275                         rec_active = false;
 276                         rec_updating = false;
 277
 278                 }
 279
 280         } else {
 281
 282                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 283
 284                 if (!rec_rects.empty() || !rec_regions.empty()) {
 285
 286                         /* disconnect rapid update */
 287                         screen_update_connection.disconnect();
 288
 289                         for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 290                                 (*prc).disconnect();
 291                         }
 292                         peak_ready_connections.clear();
 293
 294                         rec_updating = false;
 295                         rec_active = false;
 296                         last_rec_peak_frame = 0;
 297
 298                         /* remove temp regions */
 299                         for (list<Region*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
 300                         {
 301                                 list<Region*>::iterator tmp;
 302
 303                                 tmp = iter;
 304                                 ++tmp;
 305
 306                                 /* this will trigger the remove_region_view */
 307                                 delete *iter;
 308
 309                                 iter = tmp;
 310                         }
 311
 312                         rec_regions.clear();
 313
 314                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 315
 316
 317                         /* transport stopped, clear boxes */
 318                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 319                                 RecBoxInfo &rect = (*iter);
 320                                 delete rect.rectangle;
 321                         }
 322
 323                         rec_rects.clear();
 324
 325                 }
 326         }
 327 #endif
 328 }
 329
 330 void
 331 MidiStreamView::update_rec_regions ()
 332 {
 333 #if 0
 334         if (use_rec_regions) {
 335
 336                 uint32_t n = 0;
 337
 338                 for (list<Region*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 339
 340                         list<Region*>::iterator tmp;
 341
 342                         tmp = iter;
 343                         ++tmp;
 344
 345                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 346                                 /* rect already hidden, this region is done */
 347                                 iter = tmp;
 348                                 continue;
 349                         }
 350
 351                         // FIXME
 352                         MidiRegion * region = dynamic_cast<MidiRegion*>(*iter);
 353                         assert(region);
 354
 355                         jack_nframes_t origlen = region->length();
 356
 357                         if (region == rec_regions.back() && rec_active) {
 358
 359                                 if (last_rec_peak_frame > region->start()) {
 360
 361                                         jack_nframes_t nlen = last_rec_peak_frame - region->start();
 362
 363                                         if (nlen != region->length()) {
 364
 365                                                 region->freeze ();
 366                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 367                                                 region->set_length (nlen, this);
 368                                                 region->thaw ("updated");
 369
 370                                                 if (origlen == 1) {
 371                                                         /* our special initial length */
 372                                                         add_region_view_internal (region, false);
 373                                                 }
 374
 375                                                 /* also update rect */
 376                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 377                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 378                                                 rect->property_x2() = xend;
 379                                         }
 380                                 }
 381
 382                         } else {
 383
 384                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 385
 386                                 if (nlen != region->length()) {
 387
 388                                         if (region->source(0).length() >= region->start() + nlen) {
 389
 390                                                 region->freeze ();
 391                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 392                                                 region->set_length (nlen, this);
 393                                                 region->thaw ("updated");
 394
 395                                                 if (origlen == 1) {
 396                                                         /* our special initial length */
 397                                                         add_region_view_internal (region, false);
 398                                                 }
 399
 400                                                 /* also hide rect */
 401                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 402                                                 rect->hide();
 403
 404                                         }
 405                                 }
 406                         }
 407
 408                         iter = tmp;
 409                 }
 410         }
 411 #endif
 412 }
 413
 414 void
 415 MidiStreamView::color_handler (ColorID id, uint32_t val)
 416 {
 417         switch (id) {
 418         case cMidiTrackBase:
 419                 if (_trackview.is_midi_track()) {
 420                         canvas_rect->property_fill_color_rgba() = val;
 421                 }
 422                 break;
 423         case cMidiBusBase:
 424                 if (!_trackview.is_midi_track()) {
 425                         canvas_rect->property_fill_color_rgba() = val;
 426                 }
 427                 break;
 428         case cMidiTrackOutline:
 429                 canvas_rect->property_outline_color_rgba() = val;
 430                 break;
 431
 432         default:
 433                 break;
 434         }
 435 }