gtk2_ardour/audio_region_view.cc

   1 /*
   2     Copyright (C) 2001-2006 Paul Davis
   3
   4     This program is free software; you can r>edistribute 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 <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23
  24 #include <gtkmm.h>
  25
  26 #include <gtkmm2ext/gtk_ui.h>
  27
  28 #include <ardour/playlist.h>
  29 #include <ardour/audioregion.h>
  30 #include <ardour/audiosource.h>
  31 #include <ardour/audio_diskstream.h>
  32 #include <ardour/profile.h>
  33 #include <pbd/memento_command.h>
  34 #include <pbd/stacktrace.h>
  35
  36 #include "streamview.h"
  37 #include "audio_region_view.h"
  38 #include "audio_time_axis.h"
  39 #include "simplerect.h"
  40 #include "simpleline.h"
  41 #include "waveview.h"
  42 #include "public_editor.h"
  43 #include "audio_region_editor.h"
  44 #include "region_gain_line.h"
  45 #include "ghostregion.h"
  46 #include "audio_time_axis.h"
  47 #include "utils.h"
  48 #include "rgb_macros.h"
  49 #include "gui_thread.h"
  50 #include "ardour_ui.h"
  51
  52 #include "i18n.h"
  53
  54 #define MUTED_ALPHA 10
  55
  56 using namespace sigc;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Editing;
  60 using namespace ArdourCanvas;
  61
  62 static const int32_t sync_mark_width = 9;
  63
  64 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
  65                                   Gdk::Color& basic_color)
  66         : RegionView (parent, tv, r, spu, basic_color)
  67         , sync_mark(0)
  68         , zero_line(0)
  69         , fade_in_shape(0)
  70         , fade_out_shape(0)
  71         , fade_in_handle(0)
  72         , fade_out_handle(0)
  73         , gain_line(0)
  74         , _amplitude_above_axis(1.0)
  75         , _flags(0)
  76         , fade_color(0)
  77 {
  78 }
  79
  80
  81 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
  82                                   Gdk::Color& basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
  83         : RegionView (parent, tv, r, spu, basic_color, recording, visibility)
  84         , sync_mark(0)
  85         , zero_line(0)
  86         , fade_in_shape(0)
  87         , fade_out_shape(0)
  88         , fade_in_handle(0)
  89         , fade_out_handle(0)
  90         , gain_line(0)
  91         , _amplitude_above_axis(1.0)
  92         , _flags(0)
  93         , fade_color(0)
  94 {
  95 }
  96
  97
  98 AudioRegionView::AudioRegionView (const AudioRegionView& other)
  99         : RegionView (other)
 100         , zero_line(0)
 101         , fade_in_shape(0)
 102         , fade_out_shape(0)
 103         , fade_in_handle(0)
 104         , fade_out_handle(0)
 105         , gain_line(0)
 106         , _amplitude_above_axis(1.0)
 107         , _flags(0)
 108         , fade_color(0)
 109
 110 {
 111         Gdk::Color c;
 112         int r,g,b,a;
 113
 114         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 115         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 116
 117         init (c, true);
 118 }
 119
 120 AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
 121         : RegionView (other, boost::shared_ptr<Region> (other_region))
 122         , zero_line(0)
 123         , fade_in_shape(0)
 124         , fade_out_shape(0)
 125         , fade_in_handle(0)
 126         , fade_out_handle(0)
 127         , gain_line(0)
 128         , _amplitude_above_axis(1.0)
 129         , _flags(0)
 130         , fade_color(0)
 131
 132 {
 133         Gdk::Color c;
 134         int r,g,b,a;
 135
 136         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 137         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 138
 139         init (c, true);
 140 }
 141
 142 void
 143 AudioRegionView::init (Gdk::Color& basic_color, bool wfd)
 144 {
 145         // FIXME: Some redundancy here with RegionView::init.  Need to figure out
 146         // where order is important and where it isn't...
 147
 148         RegionView::init (basic_color, wfd);
 149
 150         XMLNode *node;
 151
 152         _amplitude_above_axis = 1.0;
 153         zero_line             = 0;
 154         _flags                = 0;
 155
 156         if ((node = _region->extra_xml ("GUI")) != 0) {
 157                 set_flags (node);
 158         } else {
 159                 _flags = WaveformVisible;
 160                 store_flags ();
 161         }
 162
 163         if (trackview.editor.new_regionviews_display_gain()) {
 164                 _flags |= EnvelopeVisible;
 165         }
 166
 167         compute_colors (basic_color);
 168
 169         create_waves ();
 170
 171         fade_in_shape = new ArdourCanvas::Polygon (*group);
 172         fade_in_shape->property_fill_color_rgba() = fade_color;
 173         fade_in_shape->set_data ("regionview", this);
 174
 175         fade_out_shape = new ArdourCanvas::Polygon (*group);
 176         fade_out_shape->property_fill_color_rgba() = fade_color;
 177         fade_out_shape->set_data ("regionview", this);
 178
 179         {
 180                 uint32_t r,g,b,a;
 181                 UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
 182
 183
 184                 fade_in_handle = new ArdourCanvas::SimpleRect (*group);
 185                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 186                 fade_in_handle->property_outline_pixels() = 0;
 187                 fade_in_handle->property_y1() = 2.0;
 188                 fade_in_handle->property_y2() = 7.0;
 189
 190                 fade_in_handle->set_data ("regionview", this);
 191
 192                 fade_out_handle = new ArdourCanvas::SimpleRect (*group);
 193                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 194                 fade_out_handle->property_outline_pixels() = 0;
 195                 fade_out_handle->property_y1() = 2.0;
 196                 fade_out_handle->property_y2() = 7.0;
 197
 198                 fade_out_handle->set_data ("regionview", this);
 199         }
 200
 201         if (!Config->get_show_region_fades()) {
 202                 set_fade_visibility (false);
 203         }
 204
 205         string foo = _region->name();
 206         foo += ':';
 207         foo += "gain";
 208
 209         if (!Profile->get_sae()) {
 210                 gain_line = new AudioRegionGainLine (foo, trackview.session(), *this, *group, audio_region()->envelope());
 211
 212                 if (!(_flags & EnvelopeVisible)) {
 213                         gain_line->hide ();
 214                 } else {
 215                         gain_line->show ();
 216                 }
 217
 218                 gain_line->reset ();
 219         }
 220
 221         set_height (trackview.current_height());
 222
 223         region_muted ();
 224         region_sync_changed ();
 225         region_resized (BoundsChanged);
 226         set_waveview_data_src();
 227         region_locked ();
 228         envelope_active_changed ();
 229         fade_in_active_changed ();
 230         fade_out_active_changed ();
 231
 232         _region->StateChanged.connect (mem_fun(*this, &AudioRegionView::region_changed));
 233
 234         fade_in_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
 235         fade_in_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 236         fade_out_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 237         fade_out_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 238
 239         set_colors ();
 240
 241         /* XXX sync mark drag? */
 242 }
 243
 244 AudioRegionView::~AudioRegionView ()
 245 {
 246         in_destructor = true;
 247
 248         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 249
 250         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 251                 gnome_canvas_waveview_cache_destroy (*cache);
 252         }
 253
 254         /* all waveviews etc will be destroyed when the group is destroyed */
 255
 256         if (gain_line) {
 257                 delete gain_line;
 258         }
 259 }
 260
 261 boost::shared_ptr<ARDOUR::AudioRegion>
 262 AudioRegionView::audio_region() const
 263 {
 264         // "Guaranteed" to succeed...
 265         return boost::dynamic_pointer_cast<AudioRegion>(_region);
 266 }
 267
 268 void
 269 AudioRegionView::region_changed (Change what_changed)
 270 {
 271         ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionView::region_changed), what_changed));
 272         //cerr << "AudioRegionView::region_changed() called" << endl;
 273
 274         RegionView::region_changed(what_changed);
 275
 276         if (what_changed & AudioRegion::ScaleAmplitudeChanged) {
 277                 region_scale_amplitude_changed ();
 278         }
 279         if (what_changed & AudioRegion::FadeInChanged) {
 280                 fade_in_changed ();
 281         }
 282         if (what_changed & AudioRegion::FadeOutChanged) {
 283                 fade_out_changed ();
 284         }
 285         if (what_changed & AudioRegion::FadeInActiveChanged) {
 286                 fade_in_active_changed ();
 287         }
 288         if (what_changed & AudioRegion::FadeOutActiveChanged) {
 289                 fade_out_active_changed ();
 290         }
 291         if (what_changed & AudioRegion::EnvelopeActiveChanged) {
 292                 envelope_active_changed ();
 293         }
 294 }
 295
 296 void
 297 AudioRegionView::fade_in_changed ()
 298 {
 299         reset_fade_in_shape ();
 300 }
 301
 302 void
 303 AudioRegionView::fade_out_changed ()
 304 {
 305         reset_fade_out_shape ();
 306 }
 307 void
 308 AudioRegionView::fade_in_active_changed ()
 309 {
 310         uint32_t r,g,b,a;
 311         uint32_t col;
 312         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 313
 314         if (audio_region()->fade_in_active()) {
 315                 col = RGBA_TO_UINT(r,g,b,120);
 316                 fade_in_shape->property_fill_color_rgba() = col;
 317                 fade_in_shape->property_width_pixels() = 0;
 318                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 319         } else {
 320                 col = RGBA_TO_UINT(r,g,b,0);
 321                 fade_in_shape->property_fill_color_rgba() = col;
 322                 fade_in_shape->property_width_pixels() = 1;
 323                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
 324         }
 325 }
 326
 327 void
 328 AudioRegionView::fade_out_active_changed ()
 329 {
 330         uint32_t r,g,b,a;
 331         uint32_t col;
 332         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 333
 334         if (audio_region()->fade_out_active()) {
 335                 col = RGBA_TO_UINT(r,g,b,120);
 336                 fade_out_shape->property_fill_color_rgba() = col;
 337                 fade_out_shape->property_width_pixels() = 0;
 338                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 339         } else {
 340                 col = RGBA_TO_UINT(r,g,b,0);
 341                 fade_out_shape->property_fill_color_rgba() = col;
 342                 fade_out_shape->property_width_pixels() = 1;
 343                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
 344         }
 345 }
 346
 347
 348 void
 349 AudioRegionView::region_scale_amplitude_changed ()
 350 {
 351         ENSURE_GUI_THREAD (mem_fun(*this, &AudioRegionView::region_scale_amplitude_changed));
 352
 353         for (uint32_t n = 0; n < waves.size(); ++n) {
 354                 // force a reload of the cache
 355                 waves[n]->property_data_src() = _region.get();
 356         }
 357 }
 358
 359 void
 360 AudioRegionView::region_resized (Change what_changed)
 361 {
 362         RegionView::region_resized(what_changed);
 363
 364         if (what_changed & Change (StartChanged|LengthChanged)) {
 365
 366                 for (uint32_t n = 0; n < waves.size(); ++n) {
 367                         waves[n]->property_region_start() = _region->start();
 368                 }
 369
 370                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 371
 372                         for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
 373                                 (*w)->property_region_start() = _region->start();
 374                         }
 375                 }
 376         }
 377 }
 378
 379 void
 380 AudioRegionView::reset_width_dependent_items (double pixel_width)
 381 {
 382         RegionView::reset_width_dependent_items(pixel_width);
 383         assert(_pixel_width == pixel_width);
 384
 385         if (zero_line) {
 386                 zero_line->property_x2() = pixel_width - 1.0;
 387         }
 388
 389         if (fade_in_handle) {
 390                 if (pixel_width <= 6.0) {
 391                         fade_in_handle->hide();
 392                         fade_out_handle->hide();
 393                 } else {
 394                         if (_height < 5.0) {
 395                                 fade_in_handle->hide();
 396                                 fade_out_handle->hide();
 397                         } else {
 398                                 if (Config->get_show_region_fades()) {
 399                                         fade_in_handle->show();
 400                                         fade_out_handle->show();
 401                                 }
 402                         }
 403                 }
 404         }
 405
 406         reset_fade_shapes ();
 407 }
 408
 409 void
 410 AudioRegionView::region_muted ()
 411 {
 412         RegionView::region_muted();
 413
 414         for (uint32_t n=0; n < waves.size(); ++n) {
 415                 if (_region->muted()) {
 416                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 417                 } else {
 418                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 419                 }
 420         }
 421 }
 422
 423
 424 void
 425 AudioRegionView::set_height (gdouble height)
 426 {
 427         RegionView::set_height (height);
 428
 429         uint32_t wcnt = waves.size();
 430
 431         // FIXME: ick
 432         height -= 2;
 433         TimeAxisViewItem::set_height (height);
 434
 435
 436         _height = height;
 437
 438         for (uint32_t n=0; n < wcnt; ++n) {
 439                 gdouble ht;
 440
 441                 if ((height) < NAME_HIGHLIGHT_THRESH) {
 442                         ht = ((height-2*wcnt) / (double) wcnt);
 443                 } else {
 444                         ht = (((height-2*wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 445                 }
 446
 447                 gdouble yoff = n * (ht+1);
 448
 449                 waves[n]->property_height() = ht;
 450                 waves[n]->property_y() = yoff + 2;
 451         }
 452
 453         if (gain_line) {
 454                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 455                         gain_line->hide ();
 456                 } else {
 457                         if (_flags & EnvelopeVisible) {
 458                                 gain_line->show ();
 459                         }
 460                 }
 461                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE));
 462         }
 463
 464         manage_zero_line ();
 465         reset_fade_shapes ();
 466
 467         if (name_text) {
 468                 name_text->raise_to_top();
 469         }
 470 }
 471
 472 void
 473 AudioRegionView::manage_zero_line ()
 474 {
 475         if (!zero_line) {
 476                 return;
 477         }
 478
 479         if (_height >= 100) {
 480                 gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
 481                 zero_line->property_y1() = wave_midpoint;
 482                 zero_line->property_y2() = wave_midpoint;
 483                 zero_line->show();
 484         } else {
 485                 zero_line->hide();
 486         }
 487 }
 488
 489 void
 490 AudioRegionView::reset_fade_shapes ()
 491 {
 492         reset_fade_in_shape ();
 493         reset_fade_out_shape ();
 494 }
 495
 496 void
 497 AudioRegionView::reset_fade_in_shape ()
 498 {
 499         reset_fade_in_shape_width ((nframes_t) audio_region()->fade_in().back()->when);
 500 }
 501
 502 void
 503 AudioRegionView::reset_fade_in_shape_width (nframes_t width)
 504 {
 505         if (fade_in_handle == 0) {
 506                 return;
 507         }
 508
 509         /* smallest size for a fade is 64 frames */
 510
 511         width = std::max ((nframes_t) 64, width);
 512
 513         Points* points;
 514         double pwidth = width / samples_per_unit;
 515         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 516         double h;
 517
 518         if (_height < 5) {
 519                 fade_in_shape->hide();
 520                 fade_in_handle->hide();
 521                 return;
 522         }
 523
 524         double handle_center;
 525         handle_center = pwidth;
 526
 527         if (handle_center > 7.0) {
 528                 handle_center -= 3.0;
 529         } else {
 530                 handle_center = 3.0;
 531         }
 532
 533         fade_in_handle->property_x1() =  handle_center - 3.0;
 534         fade_in_handle->property_x2() =  handle_center + 3.0;
 535
 536         if (pwidth < 5) {
 537                 fade_in_shape->hide();
 538                 return;
 539         }
 540
 541         if (Config->get_show_region_fades()) {
 542                 fade_in_shape->show();
 543         }
 544
 545         float curve[npoints];
 546         audio_region()->fade_in().get_vector (0, audio_region()->fade_in().back()->when, curve, npoints);
 547
 548         points = get_canvas_points ("fade in shape", npoints+3);
 549
 550         if (_height >= NAME_HIGHLIGHT_THRESH) {
 551                 h = _height - NAME_HIGHLIGHT_SIZE;
 552         } else {
 553                 h = _height;
 554         }
 555
 556         /* points *MUST* be in anti-clockwise order */
 557
 558         uint32_t pi, pc;
 559         double xdelta = pwidth/npoints;
 560
 561         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 562                 (*points)[pi].set_x(1 + (pc * xdelta));
 563                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 564         }
 565
 566         /* fold back */
 567
 568         (*points)[pi].set_x(pwidth);
 569         (*points)[pi++].set_y(2);
 570
 571         (*points)[pi].set_x(1);
 572         (*points)[pi++].set_y(2);
 573
 574         /* connect the dots ... */
 575
 576         (*points)[pi] = (*points)[0];
 577
 578         fade_in_shape->property_points() = *points;
 579         delete points;
 580 }
 581
 582 void
 583 AudioRegionView::reset_fade_out_shape ()
 584 {
 585         reset_fade_out_shape_width ((nframes_t) audio_region()->fade_out().back()->when);
 586 }
 587
 588 void
 589 AudioRegionView::reset_fade_out_shape_width (nframes_t width)
 590 {
 591         if (fade_out_handle == 0) {
 592                 return;
 593         }
 594
 595         /* smallest size for a fade is 64 frames */
 596
 597         width = std::max ((nframes_t) 64, width);
 598
 599         Points* points;
 600         double pwidth = width / samples_per_unit;
 601         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 602         double h;
 603
 604         if (_height < 5) {
 605                 fade_out_shape->hide();
 606                 fade_out_handle->hide();
 607                 return;
 608         }
 609
 610         double handle_center;
 611         handle_center = (_region->length() - width) / samples_per_unit;
 612
 613         if (handle_center > 7.0) {
 614                 handle_center -= 3.0;
 615         } else {
 616                 handle_center = 3.0;
 617         }
 618
 619         fade_out_handle->property_x1() =  handle_center - 3.0;
 620         fade_out_handle->property_x2() =  handle_center + 3.0;
 621
 622         /* don't show shape if its too small */
 623
 624         if (pwidth < 5) {
 625                 fade_out_shape->hide();
 626                 return;
 627         }
 628
 629         if (Config->get_show_region_fades()) {
 630                 fade_out_shape->show();
 631         }
 632
 633         float curve[npoints];
 634         audio_region()->fade_out().get_vector (0, audio_region()->fade_out().back()->when, curve, npoints);
 635
 636         if (_height >= NAME_HIGHLIGHT_THRESH) {
 637                 h = _height - NAME_HIGHLIGHT_SIZE;
 638         } else {
 639                 h = _height;
 640         }
 641
 642         /* points *MUST* be in anti-clockwise order */
 643
 644         points = get_canvas_points ("fade out shape", npoints+3);
 645
 646         uint32_t pi, pc;
 647         double xdelta = pwidth/npoints;
 648
 649         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 650                 (*points)[pi].set_x(_pixel_width - 1 - pwidth + (pc*xdelta));
 651                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 652         }
 653
 654         /* fold back */
 655
 656         (*points)[pi].set_x(_pixel_width);
 657         (*points)[pi++].set_y(h);
 658
 659         (*points)[pi].set_x(_pixel_width);
 660         (*points)[pi++].set_y(2);
 661
 662         /* connect the dots ... */
 663
 664         (*points)[pi] = (*points)[0];
 665
 666         fade_out_shape->property_points() = *points;
 667         delete points;
 668 }
 669
 670 void
 671 AudioRegionView::set_samples_per_unit (gdouble spu)
 672 {
 673         RegionView::set_samples_per_unit (spu);
 674
 675         if (_flags & WaveformVisible) {
 676                 for (uint32_t n=0; n < waves.size(); ++n) {
 677                         waves[n]->property_samples_per_unit() = spu;
 678                 }
 679         }
 680
 681         if (gain_line) {
 682                 gain_line->reset ();
 683         }
 684
 685         reset_fade_shapes ();
 686 }
 687
 688 void
 689 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 690 {
 691         for (uint32_t n=0; n < waves.size(); ++n) {
 692                 waves[n]->property_amplitude_above_axis() = spp;
 693         }
 694 }
 695
 696 void
 697 AudioRegionView::compute_colors (Gdk::Color& basic_color)
 698 {
 699         RegionView::compute_colors(basic_color);
 700
 701         uint32_t r, g, b, a;
 702
 703         /* gain color computed in envelope_active_changed() */
 704
 705         UINT_TO_RGBA (fill_color, &r, &g, &b, &a);
 706         fade_color = RGBA_TO_UINT(r,g,b,120);
 707 }
 708
 709 void
 710 AudioRegionView::set_colors ()
 711 {
 712         RegionView::set_colors();
 713
 714         if (gain_line) {
 715                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 716         }
 717
 718         for (uint32_t n=0; n < waves.size(); ++n) {
 719                 if (_region->muted()) {
 720                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 721                 } else {
 722                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 723                 }
 724
 725                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 726                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 727         }
 728 }
 729
 730 void
 731 AudioRegionView::show_region_editor ()
 732 {
 733         if (editor == 0) {
 734                 editor = new AudioRegionEditor (trackview.session(), audio_region(), *this);
 735                 // GTK2FIX : how to ensure float without realizing
 736                 // editor->realize ();
 737                 // trackview.editor.ensure_float (*editor);
 738         }
 739
 740         editor->present ();
 741         editor->show_all();
 742 }
 743
 744 void
 745 AudioRegionView::set_waveform_visible (bool yn)
 746 {
 747         if (((_flags & WaveformVisible) != yn)) {
 748                 if (yn) {
 749                         for (uint32_t n=0; n < waves.size(); ++n) {
 750                                 /* make sure the zoom level is correct, since we don't update
 751                                    this when waveforms are hidden.
 752                                 */
 753                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 754                                 waves[n]->show();
 755                         }
 756                         _flags |= WaveformVisible;
 757                 } else {
 758                         for (uint32_t n=0; n < waves.size(); ++n) {
 759                                 waves[n]->hide();
 760                         }
 761                         _flags &= ~WaveformVisible;
 762                 }
 763                 store_flags ();
 764         }
 765 }
 766
 767 void
 768 AudioRegionView::temporarily_hide_envelope ()
 769 {
 770         if (gain_line) {
 771                 gain_line->hide ();
 772         }
 773 }
 774
 775 void
 776 AudioRegionView::unhide_envelope ()
 777 {
 778         if (gain_line && (_flags & EnvelopeVisible)) {
 779                 gain_line->show ();
 780         }
 781 }
 782
 783 void
 784 AudioRegionView::set_envelope_visible (bool yn)
 785 {
 786         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 787                 if (yn) {
 788                         gain_line->show ();
 789                         _flags |= EnvelopeVisible;
 790                 } else {
 791                         gain_line->hide ();
 792                         _flags &= ~EnvelopeVisible;
 793                 }
 794                 store_flags ();
 795         }
 796 }
 797
 798 void
 799 AudioRegionView::create_waves ()
 800 {
 801         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 802         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 803
 804         if (!atv.get_diskstream()) {
 805                 return;
 806         }
 807
 808         uint32_t nchans = atv.get_diskstream()->n_channels();
 809
 810         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data << " and channels = " << nchans << endl;
 811
 812         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 813         for (uint32_t n = 0; n < nchans; ++n) {
 814                 tmp_waves.push_back (0);
 815         }
 816
 817         for (uint32_t n = 0; n < nchans; ++n) {
 818
 819                 if (n >= audio_region()->n_channels()) {
 820                         break;
 821                 }
 822
 823                 wave_caches.push_back (WaveView::create_cache ());
 824
 825                 // cerr << "\tchannel " << n << endl;
 826
 827                 if (wait_for_data) {
 828                         if (audio_region()->source(n)->peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n), data_ready_connection)) {
 829                                 // cerr << "\tData is ready\n";
 830                                 create_one_wave (n, true);
 831                         } else {
 832                                 // cerr << "\tdata is not ready\n";
 833                                 // we'll get a PeaksReady signal from the source in the future
 834                                 // and will call create_one_wave(n) then.
 835                         }
 836
 837                 } else {
 838                         // cerr << "\tdon't delay, display today!\n";
 839                         create_one_wave (n, true);
 840                 }
 841
 842         }
 843 }
 844
 845 void
 846 AudioRegionView::create_one_wave (uint32_t which, bool direct)
 847 {
 848         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 849         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 850         uint32_t nchans = atv.get_diskstream()->n_channels();
 851         uint32_t n;
 852         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 853         gdouble ht;
 854
 855         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 856                 ht = ((trackview.current_height()) / (double) nchans);
 857         } else {
 858                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 859         }
 860
 861         gdouble yoff = which * ht;
 862
 863         WaveView *wave = new WaveView(*group);
 864
 865         wave->property_data_src() = (gpointer) _region.get();
 866         wave->property_cache() =  wave_caches[which];
 867         wave->property_cache_updater() = true;
 868         wave->property_channel() =  which;
 869         wave->property_length_function() = (gpointer) region_length_from_c;
 870         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 871         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 872         wave->property_x() =  0.0;
 873         wave->property_y() =  yoff;
 874         wave->property_height() =  (double) ht;
 875         wave->property_samples_per_unit() =  samples_per_unit;
 876         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 877
 878         if (_recregion) {
 879                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 880                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 881         } else {
 882                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 883                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 884         }
 885
 886         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 887         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 888         wave->property_region_start() = _region->start();
 889         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 890         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 891
 892         if (!(_flags & WaveformVisible)) {
 893                 wave->hide();
 894         }
 895
 896         /* note: calling this function is serialized by the lock
 897            held in the peak building thread that signals that
 898            peaks are ready for use *or* by the fact that it is
 899            called one by one from the GUI thread.
 900         */
 901
 902         if (which < nchans) {
 903                 tmp_waves[which] = wave;
 904         } else {
 905                 /* n-channel track, >n-channel source */
 906         }
 907
 908         /* see if we're all ready */
 909
 910         for (n = 0; n < nchans; ++n) {
 911                 if (tmp_waves[n] == 0) {
 912                         break;
 913                 }
 914         }
 915
 916         if (n == nwaves && waves.empty()) {
 917                 /* all waves are ready */
 918                 tmp_waves.resize(nwaves);
 919
 920                 waves = tmp_waves;
 921                 tmp_waves.clear ();
 922
 923                 /* all waves created, don't hook into peaks ready anymore */
 924                 data_ready_connection.disconnect ();
 925
 926                 if (!zero_line) {
 927                         zero_line = new ArdourCanvas::SimpleLine (*group);
 928                         zero_line->property_x1() = (gdouble) 1.0;
 929                         zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
 930                         zero_line->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 931                         manage_zero_line ();
 932                 }
 933         }
 934 }
 935
 936 void
 937 AudioRegionView::peaks_ready_handler (uint32_t which)
 938 {
 939         Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &AudioRegionView::create_one_wave), which, false));
 940         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
 941 }
 942
 943 void
 944 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 945 {
 946         if (gain_line == 0) {
 947                 return;
 948         }
 949
 950         double x, y;
 951
 952         /* don't create points that can't be seen */
 953
 954         set_envelope_visible (true);
 955
 956         x = ev->button.x;
 957         y = ev->button.y;
 958
 959         item->w2i (x, y);
 960
 961         nframes_t fx = trackview.editor.pixel_to_frame (x);
 962
 963         if (fx > _region->length()) {
 964                 return;
 965         }
 966
 967         /* compute vertical fractional position */
 968
 969         y = 1.0 - (y / (trackview.current_height() - NAME_HIGHLIGHT_SIZE));
 970
 971         /* map using gain line */
 972
 973         gain_line->view_to_model_y (y);
 974
 975         trackview.session().begin_reversible_command (_("add gain control point"));
 976         XMLNode &before = audio_region()->envelope().get_state();
 977
 978         if (!audio_region()->envelope_active()) {
 979                 XMLNode &region_before = audio_region()->get_state();
 980                 audio_region()->set_envelope_active(true);
 981                 XMLNode &region_after = audio_region()->get_state();
 982                 trackview.session().add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
 983         }
 984
 985         audio_region()->envelope().add (fx, y);
 986
 987         XMLNode &after = audio_region()->envelope().get_state();
 988         trackview.session().add_command (new MementoCommand<Curve>(audio_region()->envelope(), &before, &after));
 989         trackview.session().commit_reversible_command ();
 990 }
 991
 992 void
 993 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 994 {
 995         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
 996         audio_region()->envelope().erase (cp->model);
 997 }
 998
 999 void
1000 AudioRegionView::store_flags()
1001 {
1002         XMLNode *node = new XMLNode ("GUI");
1003
1004         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1005         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1006         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1007         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1008
1009         _region->add_extra_xml (*node);
1010 }
1011
1012 void
1013 AudioRegionView::set_flags (XMLNode* node)
1014 {
1015         XMLProperty *prop;
1016
1017         if ((prop = node->property ("waveform-visible")) != 0) {
1018                 if (prop->value() == "yes") {
1019                         _flags |= WaveformVisible;
1020                 }
1021         }
1022
1023         if ((prop = node->property ("envelope-visible")) != 0) {
1024                 if (prop->value() == "yes") {
1025                         _flags |= EnvelopeVisible;
1026                 }
1027         }
1028
1029         if ((prop = node->property ("waveform-rectified")) != 0) {
1030                 if (prop->value() == "yes") {
1031                         _flags |= WaveformRectified;
1032                 }
1033         }
1034
1035         if ((prop = node->property ("waveform-logscaled")) != 0) {
1036                 if (prop->value() == "yes") {
1037                         _flags |= WaveformLogScaled;
1038                 }
1039         }
1040 }
1041
1042 void
1043 AudioRegionView::set_waveform_shape (WaveformShape shape)
1044 {
1045         bool yn;
1046
1047         /* this slightly odd approach is to leave the door open to
1048            other "shapes" such as spectral displays, etc.
1049         */
1050
1051         switch (shape) {
1052         case Rectified:
1053                 yn = true;
1054                 break;
1055
1056         default:
1057                 yn = false;
1058                 break;
1059         }
1060
1061         if (yn != (bool) (_flags & WaveformRectified)) {
1062                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1063                         (*wave)->property_rectified() = yn;
1064                 }
1065
1066                 if (zero_line) {
1067                         if (yn) {
1068                                 zero_line->hide();
1069                         } else {
1070                                 zero_line->show();
1071                         }
1072                 }
1073
1074                 if (yn) {
1075                         _flags |= WaveformRectified;
1076                 } else {
1077                         _flags &= ~WaveformRectified;
1078                 }
1079                 store_flags ();
1080         }
1081 }
1082
1083 void
1084 AudioRegionView::set_waveform_scale (WaveformScale scale)
1085 {
1086         bool yn = (scale == LogWaveform);
1087
1088         if (yn != (bool) (_flags & WaveformLogScaled)) {
1089                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1090                         (*wave)->property_logscaled() = yn;
1091                 }
1092
1093                 if (yn) {
1094                         _flags |= WaveformLogScaled;
1095                 } else {
1096                         _flags &= ~WaveformLogScaled;
1097                 }
1098                 store_flags ();
1099         }
1100 }
1101
1102
1103 GhostRegion*
1104 AudioRegionView::add_ghost (AutomationTimeAxisView& atv)
1105 {
1106         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1107         assert(rtv);
1108
1109         double unit_position = _region->position () / samples_per_unit;
1110         GhostRegion* ghost = new GhostRegion (atv, unit_position);
1111         uint32_t nchans;
1112
1113         nchans = rtv->get_diskstream()->n_channels();
1114
1115         for (uint32_t n = 0; n < nchans; ++n) {
1116
1117                 if (n >= audio_region()->n_channels()) {
1118                         break;
1119                 }
1120
1121                 WaveView *wave = new WaveView(*ghost->group);
1122
1123                 wave->property_data_src() = _region.get();
1124                 wave->property_cache() =  wave_caches[n];
1125                 wave->property_cache_updater() = false;
1126                 wave->property_channel() = n;
1127                 wave->property_length_function() = (gpointer)region_length_from_c;
1128                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1129                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1130                 wave->property_x() =  0.0;
1131                 wave->property_samples_per_unit() =  samples_per_unit;
1132                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1133                 wave->property_wave_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWave.get();
1134                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWave.get();
1135                 wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWaveClip.get();
1136                 wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_GhostTrackZeroLine.get();
1137                 wave->property_region_start() = _region->start();
1138
1139                 ghost->waves.push_back(wave);
1140         }
1141
1142         ghost->set_height ();
1143         ghost->set_duration (_region->length() / samples_per_unit);
1144         ghosts.push_back (ghost);
1145
1146         ghost->GoingAway.connect (mem_fun(*this, &AudioRegionView::remove_ghost));
1147
1148         return ghost;
1149 }
1150
1151 void
1152 AudioRegionView::entered ()
1153 {
1154         if (gain_line && _flags & EnvelopeVisible) {
1155                 gain_line->show_all_control_points ();
1156         }
1157
1158         uint32_t r,g,b,a;
1159         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1160         a=255;
1161
1162         if (fade_in_handle) {
1163                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1164                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1165         }
1166 }
1167
1168 void
1169 AudioRegionView::exited ()
1170 {
1171         if (gain_line) {
1172                 gain_line->hide_all_but_selected_control_points ();
1173         }
1174
1175         uint32_t r,g,b,a;
1176         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1177         a=0;
1178
1179         if (fade_in_handle) {
1180                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1181                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1182         }
1183 }
1184
1185 void
1186 AudioRegionView::envelope_active_changed ()
1187 {
1188         if (gain_line) {
1189                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1190         }
1191 }
1192
1193 void
1194 AudioRegionView::set_waveview_data_src()
1195 {
1196
1197         double unit_length= _region->length() / samples_per_unit;
1198
1199         for (uint32_t n = 0; n < waves.size(); ++n) {
1200                 // TODO: something else to let it know the channel
1201                 waves[n]->property_data_src() = _region.get();
1202         }
1203
1204         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1205
1206                 (*i)->set_duration (unit_length);
1207
1208                 for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
1209                         (*w)->property_data_src() = _region.get();
1210                 }
1211         }
1212
1213 }
1214
1215 void
1216 AudioRegionView::color_handler ()
1217 {
1218         set_colors ();
1219         envelope_active_changed();
1220 }
1221
1222 void
1223 AudioRegionView::set_frame_color ()
1224 {
1225         if (!frame) {
1226                 return;
1227         }
1228
1229         if (_region->opaque()) {
1230                 fill_opacity = 130;
1231         } else {
1232                 fill_opacity = 0;
1233         }
1234
1235         uint32_t r,g,b,a;
1236
1237         if (_selected && should_show_selection) {
1238                 UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get(), &r, &g, &b, &a);
1239                 frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1240
1241                 for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1242                         if (_region->muted()) {
1243                                 (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1244                         } else {
1245                                 (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1246                                 (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1247                         }
1248                 }
1249         } else {
1250                 if (_recregion) {
1251                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_RecordingRect.get(), &r, &g, &b, &a);
1252                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, a);
1253
1254                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1255                                 if (_region->muted()) {
1256                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1257                                 } else {
1258                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1259                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1260                                 }
1261                         }
1262                 } else {
1263                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_FrameBase.get(), &r, &g, &b, &a);
1264                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1265
1266                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1267                                 if (_region->muted()) {
1268                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1269                                 } else {
1270                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1271                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1272                                 }
1273                         }
1274                 }
1275         }
1276 }
1277
1278 void
1279 AudioRegionView::set_fade_visibility (bool yn)
1280 {
1281         if (yn) {
1282                 if (fade_in_shape) {
1283                         fade_in_shape->show();
1284                 }
1285                 if (fade_out_shape) {
1286                         fade_out_shape->show ();
1287                 }
1288                 if (fade_in_handle) {
1289                         fade_in_handle->show ();
1290                 }
1291                 if (fade_out_handle) {
1292                         fade_out_handle->show ();
1293                 }
1294         } else {
1295                 if (fade_in_shape) {
1296                         fade_in_shape->hide();
1297                 }
1298                 if (fade_out_shape) {
1299                         fade_out_shape->hide ();
1300                 }
1301                 if (fade_in_handle) {
1302                         fade_in_handle->hide ();
1303                 }
1304                 if (fade_out_handle) {
1305                         fade_out_handle->hide ();
1306                 }
1307         }
1308 }