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/smf_source.h>
  32 #include <ardour/region_factory.h>
  33
  34 #include "midi_streamview.h"
  35 #include "region_view.h"
  36 #include "midi_region_view.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         if (tv.is_track())
  56                 stream_base_color = color_map[cMidiTrackBase];
  57         else
  58                 stream_base_color = color_map[cMidiBusBase];
  59
  60         canvas_rect->property_fill_color_rgba() = stream_base_color;
  61         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  62
  63         //use_rec_regions = tv.editor.show_waveforms_recording ();
  64         use_rec_regions = true;
  65 }
  66
  67 MidiStreamView::~MidiStreamView ()
  68 {
  69 }
  70
  71
  72 void
  73 MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
  74 {
  75         ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::add_region_view), r));
  76
  77         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
  78
  79         if (region == 0) {
  80                 return;
  81         }
  82
  83         MidiRegionView *region_view;
  84         list<RegionView *>::iterator i;
  85
  86         for (i = region_views.begin(); i != region_views.end(); ++i) {
  87                 if ((*i)->region() == r) {
  88
  89                         /* great. we already have a MidiRegionView for this Region. use it again. */
  90
  91                         (*i)->set_valid (true);
  92                         return;
  93                 }
  94         }
  95
  96         // can't we all just get along?
  97         assert(_trackview.midi_track()->mode() != Destructive);
  98
  99         region_view = new MidiRegionView (canvas_group, _trackview, region,
 100                         _samples_per_unit, region_color);
 101
 102         region_view->init (region_color, wait_for_waves);
 103         region_views.push_front (region_view);
 104
 105         /* follow global waveform setting */
 106
 107         // FIXME
 108         //region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 109
 110         /* catch regionview going away */
 111
 112         region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_region_view), region));
 113
 114         RegionViewAdded (region_view);
 115 }
 116
 117 // FIXME: code duplication with AudioStreamVIew
 118 void
 119 MidiStreamView::redisplay_diskstream ()
 120 {
 121         list<RegionView *>::iterator i, tmp;
 122
 123         for (i = region_views.begin(); i != region_views.end(); ++i) {
 124                 (*i)->set_valid (false);
 125         }
 126
 127         if (_trackview.is_midi_track()) {
 128                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 129         }
 130
 131         for (i = region_views.begin(); i != region_views.end(); ) {
 132                 tmp = i;
 133                 tmp++;
 134
 135                 if (!(*i)->is_valid()) {
 136                         delete *i;
 137                         region_views.erase (i);
 138                 }
 139
 140                 i = tmp;
 141         }
 142
 143         /* now fix layering */
 144
 145         playlist_modified ();
 146 }
 147
 148
 149 void
 150 MidiStreamView::setup_rec_box ()
 151 {
 152         // cerr << _trackview.name() << " streamview SRB\n";
 153
 154         if (_trackview.session().transport_rolling()) {
 155
 156                 if (!rec_active &&
 157                     _trackview.session().record_status() == Session::Recording &&
 158                     _trackview.get_diskstream()->record_enabled()) {
 159
 160                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 161
 162                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 163
 164                                 MidiRegion::SourceList sources;
 165
 166                                 // FIXME
 167                                 boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
 168                                 assert(mds);
 169
 170                                 sources.push_back(mds->write_source());
 171
 172                                 rec_data_ready_connections.push_back (mds->write_source()->ViewDataRangeReady.connect (bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), mds->write_source())));
 173
 174                                 // handle multi
 175
 176                                 jack_nframes_t start = 0;
 177                                 if (rec_regions.size() > 0) {
 178                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 179                                 }
 180
 181                                 boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
 182                                         (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 183                                 assert(region);
 184                                 region->set_position (_trackview.session().transport_frame(), this);
 185                                 rec_regions.push_back (region);
 186                                 /* catch it if it goes away */
 187                                 region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_rec_region), region));
 188
 189                                 /* we add the region later */
 190                         }
 191
 192                         /* start a new rec box */
 193
 194                         MidiTrack* mt = _trackview.midi_track(); /* we know what it is already */
 195                         boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
 196                         jack_nframes_t frame_pos = ds->current_capture_start ();
 197                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 198                         gdouble xend;
 199                         uint32_t fill_color;
 200
 201                         assert(_trackview.midi_track()->mode() == Normal);
 202
 203                         xend = xstart;
 204                         fill_color = color_map[cRecordingRectFill];
 205
 206                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 207                         rec_rect->property_x1() = xstart;
 208                         rec_rect->property_y1() = 1.0;
 209                         rec_rect->property_x2() = xend;
 210                         rec_rect->property_y2() = (double) _trackview.height - 1;
 211                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 212                         rec_rect->property_fill_color_rgba() = fill_color;
 213
 214                         RecBoxInfo recbox;
 215                         recbox.rectangle = rec_rect;
 216                         recbox.start = _trackview.session().transport_frame();
 217                         recbox.length = 0;
 218
 219                         rec_rects.push_back (recbox);
 220
 221                         screen_update_connection.disconnect();
 222                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
 223                         rec_updating = true;
 224                         rec_active = true;
 225
 226                 } else if (rec_active &&
 227                            (_trackview.session().record_status() != Session::Recording ||
 228                             !_trackview.get_diskstream()->record_enabled())) {
 229
 230                         screen_update_connection.disconnect();
 231                         rec_active = false;
 232                         rec_updating = false;
 233
 234                 }
 235
 236         } else {
 237
 238                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 239
 240                 if (!rec_rects.empty() || !rec_regions.empty()) {
 241
 242                         /* disconnect rapid update */
 243                         screen_update_connection.disconnect();
 244
 245                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 246                                 (*prc).disconnect();
 247                         }
 248                         rec_data_ready_connections.clear();
 249
 250                         rec_updating = false;
 251                         rec_active = false;
 252                         last_rec_data_frame = 0;
 253
 254                         /* remove temp regions */
 255                         rec_regions.clear();
 256
 257                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 258
 259                         /* transport stopped, clear boxes */
 260                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 261                                 RecBoxInfo &rect = (*iter);
 262                                 delete rect.rectangle;
 263                         }
 264
 265                         rec_rects.clear();
 266
 267                 }
 268         }
 269 }
 270
 271 void
 272 MidiStreamView::update_rec_regions ()
 273 {
 274         if (use_rec_regions) {
 275
 276
 277                 uint32_t n = 0;
 278
 279                 for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 280
 281                         list<boost::shared_ptr<Region> >::iterator tmp;
 282
 283                         tmp = iter;
 284                         ++tmp;
 285
 286                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 287                                 /* rect already hidden, this region is done */
 288                                 iter = tmp;
 289                                 continue;
 290                         }
 291
 292                         boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(*iter);
 293                         assert(region);
 294
 295                         jack_nframes_t origlen = region->length();
 296
 297                         if (region == rec_regions.back() && rec_active) {
 298
 299                                 if (last_rec_data_frame > region->start()) {
 300
 301                                         jack_nframes_t nlen = last_rec_data_frame - region->start();
 302
 303                                         if (nlen != region->length()) {
 304
 305                                                 region->freeze ();
 306                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 307                                                 region->set_length (nlen, this);
 308                                                 region->thaw ("updated");
 309
 310                                                 if (origlen == 1) {
 311                                                         /* our special initial length */
 312                                                         add_region_view_internal (region, false);
 313                                                 }
 314
 315                                                 /* also update rect */
 316                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 317                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 318                                                 rect->property_x2() = xend;
 319                                         }
 320                                 }
 321
 322                         } else {
 323
 324                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 325
 326                                 if (nlen != region->length()) {
 327
 328                                         if (region->source(0)->length() >= region->start() + nlen) {
 329
 330                                                 region->freeze ();
 331                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 332                                                 region->set_length (nlen, this);
 333                                                 region->thaw ("updated");
 334
 335                                                 if (origlen == 1) {
 336                                                         /* our special initial length */
 337                                                         add_region_view_internal (region, false);
 338                                                 }
 339
 340                                                 /* also hide rect */
 341                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 342                                                 rect->hide();
 343
 344                                         }
 345                                 }
 346                         }
 347
 348                         iter = tmp;
 349                 }
 350         }
 351 }
 352
 353 void
 354 MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t cnt, boost::shared_ptr<Source> src)
 355 {
 356         // this is called from the butler thread for now
 357         // yeah we need a "peak" building thread or something, though there's not really any
 358         // work for it to do...  whatever. :)
 359
 360         ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, cnt, src));
 361
 362         //cerr << "REC DATA: " << start << " --- " << cnt << endl;
 363
 364         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 365                 last_rec_data_frame = start + cnt;
 366         }
 367
 368         rec_data_ready_map[src] = true;
 369
 370         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().get(DataType::MIDI)) {
 371                 this->update_rec_regions ();
 372                 rec_data_ready_map.clear();
 373         }
 374 }
 375
 376 void
 377 MidiStreamView::color_handler (ColorID id, uint32_t val)
 378 {
 379         switch (id) {
 380         case cMidiTrackBase:
 381                 if (_trackview.is_midi_track()) {
 382                         canvas_rect->property_fill_color_rgba() = val;
 383                 }
 384                 break;
 385         case cMidiBusBase:
 386                 if (!_trackview.is_midi_track()) {
 387                         canvas_rect->property_fill_color_rgba() = val;
 388                 }
 389                 break;
 390         case cMidiTrackOutline:
 391                 canvas_rect->property_outline_color_rgba() = val;
 392                 break;
 393
 394         default:
 395                 break;
 396         }
 397 }