gtk2_ardour/regionview.cc

   1 /*
   2     Copyright (C) 2001 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     $Id$
  19 */
  20
  21 #include <cmath>
  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/sndfilesource.h>
  31 #include <ardour/diskstream.h>
  32
  33 #include "streamview.h"
  34 #include "regionview.h"
  35 #include "audio_time_axis.h"
  36 #include "simplerect.h"
  37 #include "simpleline.h"
  38 #include "waveview.h"
  39 #include "public_editor.h"
  40 #include "region_editor.h"
  41 #include "region_gain_line.h"
  42 #include "ghostregion.h"
  43 #include "audio_time_axis.h"
  44 #include "utils.h"
  45 #include "rgb_macros.h"
  46 #include "gui_thread.h"
  47
  48 #include "i18n.h"
  49
  50 using namespace sigc;
  51 using namespace ARDOUR;
  52 using namespace Editing;
  53 using namespace ArdourCanvas;
  54
  55 static const int32_t sync_mark_width = 9;
  56
  57 sigc::signal<void,AudioRegionView*> AudioRegionView::AudioRegionViewGoingAway;
  58
  59 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, AudioTimeAxisView &tv,
  60                                   AudioRegion& r,
  61                                   double spu,
  62                                   double amplitude_above_axis,
  63                                   Gdk::Color& basic_color,
  64                                   bool wfw)
  65
  66         : TimeAxisViewItem (r.name(), *parent, tv, spu, basic_color, r.position(), r.length(),
  67                             TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
  68                                                           TimeAxisViewItem::ShowNameHighlight|
  69                                                           TimeAxisViewItem::ShowFrame)),
  70
  71           region (r)
  72 {
  73         ArdourCanvas::Points shape;
  74         XMLNode *node;
  75
  76         editor = 0;
  77         valid = true;
  78         in_destructor = false;
  79         _amplitude_above_axis = amplitude_above_axis;
  80         zero_line = 0;
  81         wait_for_waves = wfw;
  82         _height = 0;
  83
  84         _flags = 0;
  85
  86         if ((node = region.extra_xml ("GUI")) != 0) {
  87                 set_flags (node);
  88         } else {
  89                 _flags = WaveformVisible;
  90                 store_flags ();
  91         }
  92
  93         if (trackview.editor.new_regionviews_display_gain()) {
  94                 _flags |= EnvelopeVisible;
  95         }
  96
  97         compute_colors (basic_color);
  98
  99         create_waves ();
 100
 101         name_highlight->set_data ("regionview", this);
 102         name_text->set_data ("regionview", this);
 103
 104         //      shape = new ArdourCanvas::Points ();
 105
 106         /* an equilateral triangle */
 107
 108         shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
 109         shape.push_back (Gnome::Art::Point ((sync_mark_width - 1)/2, 1));
 110         shape.push_back (Gnome::Art::Point (0, sync_mark_width - 1));
 111         shape.push_back (Gnome::Art::Point (-((sync_mark_width-1)/2), 1));
 112
 113         sync_mark =  new ArdourCanvas::Polygon (*group);
 114         sync_mark->property_points() = shape;
 115         sync_mark->property_fill_color_rgba() = fill_color;
 116         sync_mark->hide();
 117
 118         fade_in_shape = new ArdourCanvas::Polygon (*group);
 119         fade_in_shape->property_fill_color_rgba() = fade_color;
 120         fade_in_shape->set_data ("regionview", this);
 121
 122         fade_out_shape = new ArdourCanvas::Polygon (*group);
 123         fade_out_shape->property_fill_color_rgba() = fade_color;
 124         fade_out_shape->set_data ("regionview", this);
 125
 126
 127         {
 128                 uint32_t r,g,b,a;
 129                 UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
 130
 131
 132                 fade_in_handle = new ArdourCanvas::SimpleRect (*group);
 133                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 134                 fade_in_handle->property_outline_pixels() = 0;
 135                 fade_in_handle->property_y1() = 2.0;
 136                 fade_in_handle->property_y2() = 7.0;
 137
 138                 fade_in_handle->set_data ("regionview", this);
 139
 140                 fade_out_handle = new ArdourCanvas::SimpleRect (*group);
 141                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 142                 fade_out_handle->property_outline_pixels() = 0;
 143                 fade_out_handle->property_y1() = 2.0;
 144                 fade_out_handle->property_y2() = 7.0;
 145
 146                 fade_out_handle->set_data ("regionview", this);
 147         }
 148
 149         string foo = region.name();
 150         foo += ':';
 151         foo += "gain";
 152
 153         gain_line = new AudioRegionGainLine (foo, tv.session(), *this, *group, region.envelope());
 154
 155         if (!(_flags & EnvelopeVisible)) {
 156                 gain_line->hide ();
 157         } else {
 158                 gain_line->show ();
 159         }
 160
 161         reset_width_dependent_items ((double) region.length() / samples_per_unit);
 162
 163         gain_line->reset ();
 164
 165         set_height (trackview.height);
 166
 167         region_muted ();
 168         region_sync_changed ();
 169         region_resized (BoundsChanged);
 170         set_waveview_data_src();
 171         region_locked ();
 172         envelope_active_changed ();
 173         fade_in_active_changed ();
 174         fade_out_active_changed ();
 175
 176         region.StateChanged.connect (mem_fun(*this, &AudioRegionView::region_changed));
 177
 178         group->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
 179         name_highlight->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
 180         fade_in_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
 181         fade_in_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 182         fade_out_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 183         fade_out_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 184
 185         set_colors ();
 186
 187         /* XXX sync mark drag? */
 188 }
 189
 190 AudioRegionView::~AudioRegionView ()
 191 {
 192         in_destructor = true;
 193
 194         AudioRegionViewGoingAway (this); /* EMIT_SIGNAL */
 195
 196         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 197                 gnome_canvas_waveview_cache_destroy (*cache);
 198         }
 199
 200         /* all waveviews will be destroyed when the group is destroyed */
 201
 202         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 203                 delete *g;
 204         }
 205
 206         if (editor) {
 207                 delete editor;
 208         }
 209
 210         delete gain_line;
 211 }
 212
 213 gint
 214 AudioRegionView::_lock_toggle (ArdourCanvas::Item* item, GdkEvent* ev, void* arg)
 215 {
 216         switch (ev->type) {
 217         case GDK_BUTTON_RELEASE:
 218                 static_cast<AudioRegionView*>(arg)->lock_toggle ();
 219                 return TRUE;
 220                 break;
 221         default:
 222                 break;
 223         }
 224         return FALSE;
 225 }
 226
 227 void
 228 AudioRegionView::lock_toggle ()
 229 {
 230         region.set_locked (!region.locked());
 231 }
 232
 233 void
 234 AudioRegionView::region_changed (Change what_changed)
 235 {
 236         ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionView::region_changed), what_changed));
 237
 238         if (what_changed & BoundsChanged) {
 239                 region_resized (what_changed);
 240                 region_sync_changed ();
 241         }
 242         if (what_changed & Region::MuteChanged) {
 243                 region_muted ();
 244         }
 245         if (what_changed & Region::OpacityChanged) {
 246                 region_opacity ();
 247         }
 248         if (what_changed & ARDOUR::NameChanged) {
 249                 region_renamed ();
 250         }
 251         if (what_changed & Region::SyncOffsetChanged) {
 252                 region_sync_changed ();
 253         }
 254         if (what_changed & Region::LayerChanged) {
 255                 region_layered ();
 256         }
 257         if (what_changed & Region::LockChanged) {
 258                 region_locked ();
 259         }
 260         if (what_changed & AudioRegion::ScaleAmplitudeChanged) {
 261                 region_scale_amplitude_changed ();
 262         }
 263         if (what_changed & AudioRegion::FadeInChanged) {
 264                 fade_in_changed ();
 265         }
 266         if (what_changed & AudioRegion::FadeOutChanged) {
 267                 fade_out_changed ();
 268         }
 269         if (what_changed & AudioRegion::FadeInActiveChanged) {
 270                 fade_in_active_changed ();
 271         }
 272         if (what_changed & AudioRegion::FadeOutActiveChanged) {
 273                 fade_out_active_changed ();
 274         }
 275         if (what_changed & AudioRegion::EnvelopeActiveChanged) {
 276                 envelope_active_changed ();
 277         }
 278 }
 279
 280 void
 281 AudioRegionView::fade_in_changed ()
 282 {
 283         reset_fade_in_shape ();
 284 }
 285
 286 void
 287 AudioRegionView::fade_out_changed ()
 288 {
 289         reset_fade_out_shape ();
 290 }
 291
 292 void
 293 AudioRegionView::set_fade_in_active (bool yn)
 294 {
 295         region.set_fade_in_active (yn);
 296 }
 297
 298 void
 299 AudioRegionView::set_fade_out_active (bool yn)
 300 {
 301         region.set_fade_out_active (yn);
 302 }
 303
 304 void
 305 AudioRegionView::fade_in_active_changed ()
 306 {
 307         uint32_t r,g,b,a;
 308         uint32_t col;
 309         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 310
 311         if (region.fade_in_active()) {
 312                 col = RGBA_TO_UINT(r,g,b,120);
 313                 fade_in_shape->property_fill_color_rgba() = col;
 314                 fade_in_shape->property_width_pixels() = 0;
 315                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 316         } else {
 317                 col = RGBA_TO_UINT(r,g,b,0);
 318                 fade_in_shape->property_fill_color_rgba() = col;
 319                 fade_in_shape->property_width_pixels() = 1;
 320                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
 321         }
 322 }
 323
 324 void
 325 AudioRegionView::fade_out_active_changed ()
 326 {
 327         uint32_t r,g,b,a;
 328         uint32_t col;
 329         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 330
 331         if (region.fade_out_active()) {
 332                 col = RGBA_TO_UINT(r,g,b,120);
 333                 fade_out_shape->property_fill_color_rgba() = col;
 334                 fade_out_shape->property_width_pixels() = 0;
 335                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 336         } else {
 337                 col = RGBA_TO_UINT(r,g,b,0);
 338                 fade_out_shape->property_fill_color_rgba() = col;
 339                 fade_out_shape->property_width_pixels() = 1;
 340                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255);
 341         }
 342 }
 343
 344
 345 void
 346 AudioRegionView::region_scale_amplitude_changed ()
 347 {
 348         ENSURE_GUI_THREAD (mem_fun(*this, &AudioRegionView::region_scale_amplitude_changed));
 349
 350         for (uint32_t n = 0; n < waves.size(); ++n) {
 351                 // force a reload of the cache
 352                 waves[n]->property_data_src() = &region;
 353         }
 354 }
 355
 356 void
 357 AudioRegionView::region_locked ()
 358 {
 359         /* name will show locked status */
 360         region_renamed ();
 361 }
 362
 363 void
 364 AudioRegionView::region_resized (Change what_changed)
 365 {
 366         double unit_length;
 367
 368         if (what_changed & ARDOUR::PositionChanged) {
 369                 set_position (region.position(), 0);
 370         }
 371
 372         if (what_changed & Change (StartChanged|LengthChanged)) {
 373
 374                 set_duration (region.length(), 0);
 375
 376                 unit_length = region.length() / samples_per_unit;
 377
 378                 reset_width_dependent_items (unit_length);
 379
 380                 for (uint32_t n = 0; n < waves.size(); ++n) {
 381                         waves[n]->property_region_start() = region.start();
 382                 }
 383
 384                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 385
 386                         (*i)->set_duration (unit_length);
 387
 388                         for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
 389                                 (*w)->property_region_start() = region.start();
 390                         }
 391                 }
 392         }
 393 }
 394
 395 void
 396 AudioRegionView::reset_width_dependent_items (double pixel_width)
 397 {
 398         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
 399         _pixel_width = pixel_width;
 400
 401         if (zero_line) {
 402                 zero_line->property_x2() = pixel_width - 1.0;
 403         }
 404
 405         if (pixel_width <= 6.0) {
 406                 fade_in_handle->hide();
 407                 fade_out_handle->hide();
 408         } else {
 409                 if (_height < 5.0) {
 410                         fade_in_handle->hide();
 411                         fade_out_handle->hide();
 412                 } else {
 413                         fade_in_handle->show();
 414                         fade_out_handle->show();
 415                 }
 416         }
 417
 418         reset_fade_shapes ();
 419 }
 420
 421 void
 422 AudioRegionView::region_layered ()
 423 {
 424         AudioTimeAxisView *atv = dynamic_cast<AudioTimeAxisView*> (&get_time_axis_view());
 425         atv->view->region_layered (this);
 426 }
 427
 428 void
 429 AudioRegionView::region_muted ()
 430 {
 431         set_frame_color ();
 432         region_renamed ();
 433
 434         for (uint32_t n=0; n < waves.size(); ++n) {
 435                 if (region.muted()) {
 436                         waves[n]->property_wave_color() = color_map[cMutedWaveForm];
 437                 } else {
 438                         waves[n]->property_wave_color() = color_map[cWaveForm];
 439                 }
 440         }
 441 }
 442
 443 void
 444 AudioRegionView::region_opacity ()
 445 {
 446         set_frame_color ();
 447 }
 448
 449 void
 450 AudioRegionView::raise ()
 451 {
 452         region.raise ();
 453 }
 454
 455 void
 456 AudioRegionView::raise_to_top ()
 457 {
 458         region.raise_to_top ();
 459 }
 460
 461 void
 462 AudioRegionView::lower ()
 463 {
 464         region.lower ();
 465 }
 466
 467 void
 468 AudioRegionView::lower_to_bottom ()
 469 {
 470         region.lower_to_bottom ();
 471 }
 472
 473 bool
 474 AudioRegionView::set_position (jack_nframes_t pos, void* src, double* ignored)
 475 {
 476         double delta;
 477         bool ret;
 478
 479         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
 480                 return false;
 481         }
 482
 483         if (ignored) {
 484                 *ignored = delta;
 485         }
 486
 487         if (delta) {
 488                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 489                         (*i)->group->move (delta, 0.0);
 490                 }
 491         }
 492
 493         return ret;
 494 }
 495
 496 void
 497 AudioRegionView::set_height (gdouble height)
 498 {
 499         uint32_t wcnt = waves.size();
 500
 501         TimeAxisViewItem::set_height (height - 2);
 502
 503         _height = height;
 504
 505         for (uint32_t n=0; n < wcnt; ++n) {
 506                 gdouble ht;
 507
 508                 if ((height) < NAME_HIGHLIGHT_THRESH) {
 509                         ht = ((height-2*wcnt) / (double) wcnt);
 510                 } else {
 511                         ht = (((height-2*wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 512                 }
 513
 514                 gdouble yoff = n * (ht+1);
 515
 516                 waves[n]->property_height() = ht;
 517                 waves[n]->property_y() = yoff + 2;
 518         }
 519
 520         if ((height/wcnt) < NAME_HIGHLIGHT_SIZE) {
 521                 gain_line->hide ();
 522         } else {
 523                 if (_flags & EnvelopeVisible) {
 524                         gain_line->show ();
 525                 }
 526         }
 527
 528         manage_zero_line ();
 529         gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE));
 530         reset_fade_shapes ();
 531
 532         name_text->raise_to_top();
 533 }
 534
 535 void
 536 AudioRegionView::manage_zero_line ()
 537 {
 538         if (!zero_line) {
 539                 return;
 540         }
 541
 542         if (_height >= 100) {
 543                 gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
 544                 zero_line->property_y1() = wave_midpoint;
 545                 zero_line->property_y2() = wave_midpoint;
 546                 zero_line->show();
 547         } else {
 548                 zero_line->hide();
 549         }
 550 }
 551
 552 void
 553 AudioRegionView::reset_fade_shapes ()
 554 {
 555         reset_fade_in_shape ();
 556         reset_fade_out_shape ();
 557 }
 558
 559 void
 560 AudioRegionView::reset_fade_in_shape ()
 561 {
 562         reset_fade_in_shape_width ((jack_nframes_t) region.fade_in().back()->when);
 563 }
 564
 565 void
 566 AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width)
 567 {
 568         /* smallest size for a fade is 64 frames */
 569
 570         width = std::max ((jack_nframes_t) 64, width);
 571
 572         Points* points;
 573         double pwidth = width / samples_per_unit;
 574         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 575         double h;
 576
 577         if (_height < 5) {
 578                 fade_in_shape->hide();
 579                 fade_in_handle->hide();
 580                 return;
 581         }
 582
 583         double handle_center;
 584         handle_center = pwidth;
 585
 586         if (handle_center > 7.0) {
 587                 handle_center -= 3.0;
 588         } else {
 589                 handle_center = 3.0;
 590         }
 591
 592         fade_in_handle->property_x1() =  handle_center - 3.0;
 593         fade_in_handle->property_x2() =  handle_center + 3.0;
 594
 595         if (pwidth < 5) {
 596                 fade_in_shape->hide();
 597                 return;
 598         }
 599
 600         fade_in_shape->show();
 601
 602         float curve[npoints];
 603         region.fade_in().get_vector (0, region.fade_in().back()->when, curve, npoints);
 604
 605         points = get_canvas_points ("fade in shape", npoints+3);
 606
 607         if (_height > NAME_HIGHLIGHT_THRESH) {
 608                 h = _height - NAME_HIGHLIGHT_SIZE;
 609         } else {
 610                 h = _height;
 611         }
 612
 613         /* points *MUST* be in anti-clockwise order */
 614
 615         uint32_t pi, pc;
 616         double xdelta = pwidth/npoints;
 617
 618         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 619                 (*points)[pi].set_x(1 + (pc * xdelta));
 620                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 621         }
 622
 623         /* fold back */
 624
 625         (*points)[pi].set_x(pwidth);
 626         (*points)[pi++].set_y(2);
 627
 628         (*points)[pi].set_x(1);
 629         (*points)[pi++].set_y(2);
 630
 631         /* connect the dots ... */
 632
 633         (*points)[pi] = (*points)[0];
 634
 635         fade_in_shape->property_points() = *points;
 636         delete points;
 637 }
 638
 639 void
 640 AudioRegionView::reset_fade_out_shape ()
 641 {
 642         reset_fade_out_shape_width ((jack_nframes_t) region.fade_out().back()->when);
 643 }
 644
 645 void
 646 AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width)
 647 {
 648         /* smallest size for a fade is 64 frames */
 649
 650         width = std::max ((jack_nframes_t) 64, width);
 651
 652         Points* points;
 653         double pwidth = width / samples_per_unit;
 654         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 655         double h;
 656
 657         if (_height < 5) {
 658                 fade_out_shape->hide();
 659                 fade_out_handle->hide();
 660                 return;
 661         }
 662
 663         double handle_center;
 664         handle_center = (region.length() - width) / samples_per_unit;
 665
 666         if (handle_center > 7.0) {
 667                 handle_center -= 3.0;
 668         } else {
 669                 handle_center = 3.0;
 670         }
 671
 672         fade_out_handle->property_x1() =  handle_center - 3.0;
 673         fade_out_handle->property_x2() =  handle_center + 3.0;
 674
 675         /* don't show shape if its too small */
 676
 677         if (pwidth < 5) {
 678                 fade_out_shape->hide();
 679                 return;
 680         }
 681
 682         fade_out_shape->show();
 683
 684         float curve[npoints];
 685         region.fade_out().get_vector (0, region.fade_out().back()->when, curve, npoints);
 686
 687         if (_height > NAME_HIGHLIGHT_THRESH) {
 688                 h = _height - NAME_HIGHLIGHT_SIZE;
 689         } else {
 690                 h = _height;
 691         }
 692
 693         /* points *MUST* be in anti-clockwise order */
 694
 695         points = get_canvas_points ("fade out shape", npoints+3);
 696
 697         uint32_t pi, pc;
 698         double xdelta = pwidth/npoints;
 699
 700         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 701                 (*points)[pi] = _pixel_width - 1 - pwidth + (pc*xdelta);
 702                 (*points)[pi++] = 2 + (h - (curve[pc] * h));
 703         }
 704
 705         /* fold back */
 706
 707         (*points)[pi] = _pixel_width;
 708         (*points)[pi++] = h;
 709
 710         (*points)[pi] = _pixel_width;
 711         (*points)[pi++] = 2;
 712
 713         /* connect the dots ... */
 714
 715         (*points)[pi] = (*points)[0];
 716
 717         fade_out_shape->property_points() = *points;
 718         delete points;
 719 }
 720
 721 void
 722 AudioRegionView::set_samples_per_unit (gdouble spu)
 723 {
 724         TimeAxisViewItem::set_samples_per_unit (spu);
 725
 726         for (uint32_t n=0; n < waves.size(); ++n) {
 727                 waves[n]->property_samples_per_unit() = spu;
 728         }
 729
 730         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 731                 (*i)->set_samples_per_unit (spu);
 732                 (*i)->set_duration (region.length() / samples_per_unit);
 733         }
 734
 735         gain_line->reset ();
 736         reset_fade_shapes ();
 737         region_sync_changed ();
 738 }
 739
 740 bool
 741 AudioRegionView::set_duration (jack_nframes_t frames, void *src)
 742 {
 743         if (!TimeAxisViewItem::set_duration (frames, src)) {
 744                 return false;
 745         }
 746
 747         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 748                 (*i)->set_duration (region.length() / samples_per_unit);
 749         }
 750
 751         return true;
 752 }
 753
 754 void
 755 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 756 {
 757         for (uint32_t n=0; n < waves.size(); ++n) {
 758                 waves[n]->property_amplitude_above_axis() = spp;
 759         }
 760 }
 761
 762 void
 763 AudioRegionView::compute_colors (Gdk::Color& basic_color)
 764 {
 765         TimeAxisViewItem::compute_colors (basic_color);
 766         uint32_t r, g, b, a;
 767
 768         /* gain color computed in envelope_active_changed() */
 769
 770         UINT_TO_RGBA (fill_color, &r, &g, &b, &a);
 771         fade_color = RGBA_TO_UINT(r,g,b,120);
 772 }
 773
 774 void
 775 AudioRegionView::set_colors ()
 776 {
 777         TimeAxisViewItem::set_colors ();
 778
 779         gain_line->set_line_color (region.envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
 780         sync_mark->property_fill_color_rgba() = fill_color;
 781
 782         for (uint32_t n=0; n < waves.size(); ++n) {
 783                 if (region.muted()) {
 784                         waves[n]->property_wave_color() = color_map[cMutedWaveForm];
 785                 } else {
 786                         waves[n]->property_wave_color() = color_map[cWaveForm];
 787                 }
 788         }
 789 }
 790
 791 void
 792 AudioRegionView::set_frame_color ()
 793 {
 794         if (region.opaque()) {
 795                 fill_opacity = 180;
 796         } else {
 797                 fill_opacity = 100;
 798         }
 799
 800         TimeAxisViewItem::set_frame_color ();
 801 }
 802
 803 void
 804 AudioRegionView::show_region_editor ()
 805 {
 806         if (editor == 0) {
 807                 editor = new AudioRegionEditor (trackview.session(), region, *this);
 808                 // GTK2FIX : how to ensure float without realizing
 809                 // editor->realize ();
 810                 // trackview.editor.ensure_float (*editor);
 811         }
 812
 813         editor->show_all ();
 814         editor->get_window()->raise();
 815 }
 816
 817 void
 818 AudioRegionView::hide_region_editor()
 819 {
 820         if (editor) {
 821                 editor->hide_all ();
 822         }
 823 }
 824
 825 void
 826 AudioRegionView::region_renamed ()
 827 {
 828         string str;
 829
 830         if (region.locked()) {
 831                 str += '>';
 832                 str += region.name();
 833                 str += '<';
 834         } else {
 835                 str = region.name();
 836         }
 837
 838         if (region.muted()) {
 839                 str = string ("!") + str;
 840         }
 841
 842         set_item_name (region.name(), this);
 843         set_name_text (str);
 844 }
 845
 846 void
 847 AudioRegionView::region_sync_changed ()
 848 {
 849         int sync_dir;
 850         jack_nframes_t sync_offset;
 851
 852         sync_offset = region.sync_offset (sync_dir);
 853
 854         /* this has to handle both a genuine change of position, a change of samples_per_unit,
 855            and a change in the bounds of the region.
 856          */
 857
 858         if (sync_offset == 0) {
 859
 860                 /* no sync mark - its the start of the region */
 861
 862                 sync_mark->hide();
 863
 864         } else {
 865
 866                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > region.length()))) {
 867
 868                         /* no sync mark - its out of the bounds of the region */
 869
 870                         sync_mark->hide();
 871
 872                 } else {
 873
 874                         /* lets do it */
 875
 876                         Points points;
 877
 878                         points = sync_mark->property_points().get_value();
 879
 880                         double offset = sync_offset / samples_per_unit;
 881
 882                         points[0].set_x(offset - ((sync_mark_width-1)/2));
 883                         points[0].set_y(1);
 884
 885                         points[1].set_x(offset + (sync_mark_width-1)/2);
 886                         points[1].set_y(1);
 887
 888                         points[2].set_x(offset);
 889                         points[2].set_y(sync_mark_width - 1);
 890
 891                         points[3].set_x(offset - ((sync_mark_width-1)/2));
 892                         points[3].set_y(1);
 893
 894                         sync_mark->show();
 895                         sync_mark->property_points() = points;
 896
 897                 }
 898         }
 899 }
 900
 901 void
 902 AudioRegionView::set_waveform_visible (bool yn)
 903 {
 904         if (((_flags & WaveformVisible) != yn)) {
 905                 if (yn) {
 906                         for (uint32_t n=0; n < waves.size(); ++n) {
 907                                 waves[n]->show();
 908                         }
 909                         _flags |= WaveformVisible;
 910                 } else {
 911                         for (uint32_t n=0; n < waves.size(); ++n) {
 912                                 waves[n]->hide();
 913                         }
 914                         _flags &= ~WaveformVisible;
 915                 }
 916                 store_flags ();
 917         }
 918 }
 919
 920 void
 921 AudioRegionView::temporarily_hide_envelope ()
 922 {
 923         gain_line->hide ();
 924 }
 925
 926 void
 927 AudioRegionView::unhide_envelope ()
 928 {
 929         if (_flags & EnvelopeVisible) {
 930                 gain_line->show ();
 931         }
 932 }
 933
 934 void
 935 AudioRegionView::set_envelope_visible (bool yn)
 936 {
 937         if ((_flags & EnvelopeVisible) != yn) {
 938                 if (yn) {
 939                         gain_line->show ();
 940                         _flags |= EnvelopeVisible;
 941                 } else {
 942                         gain_line->hide ();
 943                         _flags &= ~EnvelopeVisible;
 944                 }
 945                 store_flags ();
 946         }
 947 }
 948
 949 void
 950 AudioRegionView::create_waves ()
 951 {
 952         bool create_zero_line = true;
 953
 954         AudioTimeAxisView& atv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
 955
 956         if (!atv.get_diskstream()) {
 957                 return;
 958         }
 959
 960         uint32_t nchans = atv.get_diskstream()->n_channels();
 961
 962 //      if (wait_for_waves) {
 963                 /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 964                 for (uint32_t n = 0; n < nchans; ++n) {
 965                         tmp_waves.push_back (0);
 966                 }
 967 //      }
 968
 969         for (uint32_t n = 0; n < nchans; ++n) {
 970
 971                 if (n >= region.n_channels()) {
 972                         break;
 973                 }
 974
 975                 wave_caches.push_back (WaveView::create_cache ());
 976
 977                 if (wait_for_waves) {
 978                         if (region.source(n).peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n))) {
 979                                 create_one_wave (n, true);
 980                         } else {
 981                                 create_zero_line = false;
 982                         }
 983                 } else {
 984                         create_one_wave (n, true);
 985                 }
 986         }
 987
 988         if (create_zero_line) {
 989                 zero_line = new ArdourCanvas::SimpleLine (*group);
 990                 zero_line->property_x1() = (gdouble) 1.0;
 991                 zero_line->property_x2() = (gdouble) (region.length() / samples_per_unit) - 1.0;
 992                 zero_line->property_color_rgba() = (guint) color_map[cZeroLine];
 993                 manage_zero_line ();
 994         }
 995 }
 996
 997 void
 998 AudioRegionView::create_one_wave (uint32_t which, bool direct)
 999 {
1000         AudioTimeAxisView& atv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
1001         uint32_t nchans = atv.get_diskstream()->n_channels();
1002         uint32_t n;
1003         uint32_t nwaves = std::min (nchans, region.n_channels());
1004
1005         gdouble ht;
1006         if (trackview.height < NAME_HIGHLIGHT_SIZE) {
1007                 ht = ((trackview.height) / (double) nchans);
1008         } else {
1009                 ht = ((trackview.height - NAME_HIGHLIGHT_SIZE) / (double) nchans);
1010         }
1011         gdouble yoff = which * ht;
1012
1013         WaveView *wave = new WaveView(*group);
1014
1015         wave->property_data_src() = (gpointer) &region;
1016         wave->property_cache() =  wave_caches[which];
1017         wave->property_cache_updater() = true;
1018         wave->property_channel() =  which;
1019         wave->property_length_function() = (gpointer) region_length_from_c;
1020         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1021         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1022         wave->property_x() =  0.0;
1023         wave->property_y() =  yoff;
1024         wave->property_height() =  (double) ht;
1025         wave->property_samples_per_unit() =  samples_per_unit;
1026         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1027         wave->property_wave_color() = region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm];
1028         wave->property_region_start() = region.start();
1029 //      WaveView *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
1030 //                                                 gnome_canvas_waveview_get_type (),
1031 //                                                 "data_src", (gpointer) &region,
1032 //                                                 "cache", wave_caches[which],
1033 //                                                 "cache_updater", (gboolean) true,
1034 //                                                 "channel", (guint32) which,
1035 //                                                 "length_function", (gpointer) region_length_from_c,
1036 //                                                 "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
1037 //                                                 "peak_function", (gpointer) region_read_peaks_from_c,
1038 //                                                 "x", 0.0,
1039 //                                                 "y", yoff,
1040 //                                                 "height", (double) ht,
1041 //                                                 "samples_per_unit", samples_per_unit,
1042 //                                                 "amplitude_above_axis", _amplitude_above_axis,
1043 //                                                 "wave_color", (guint32) (region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm]),
1044 //                                                 "region_start",(guint32) region.start(),
1045 //                                                 NULL);
1046
1047         if (!(_flags & WaveformVisible)) {
1048                 wave->hide();
1049         }
1050
1051         /* note: calling this function is serialized by the lock
1052            held in the peak building thread that signals that
1053            peaks are ready for use *or* by the fact that it is
1054            called one by one from the GUI thread.
1055         */
1056
1057         if (which < nchans) {
1058                 tmp_waves[which] = (wave);
1059         } else {
1060                 /* n-channel track, >n-channel source */
1061         }
1062
1063         /* see if we're all ready */
1064
1065         for (n = 0; n < nchans; ++n) {
1066                 if (tmp_waves[n] == 0) {
1067                         break;
1068                 }
1069         }
1070
1071         if (n == nwaves) {
1072                 /* all waves are ready */
1073                 tmp_waves.resize(nwaves);
1074                 waves = tmp_waves;
1075                 tmp_waves.clear ();
1076
1077                 if (!zero_line) {
1078                         zero_line = new ArdourCanvas::SimpleLine (*group);
1079                         zero_line->property_x1() = (gdouble) 1.0;
1080                         zero_line->property_x2() = (gdouble) (region.length() / samples_per_unit) - 1.0;
1081                         zero_line->property_color_rgba() = (guint) color_map[cZeroLine];
1082                         manage_zero_line ();
1083                 }
1084         }
1085 }
1086
1087 void
1088 AudioRegionView::peaks_ready_handler (uint32_t which)
1089 {
1090         Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &AudioRegionView::create_one_wave), which, false));
1091 }
1092
1093 void
1094 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1095 {
1096         double x, y;
1097
1098         /* don't create points that can't be seen */
1099
1100         set_envelope_visible (true);
1101
1102         x = ev->button.x;
1103         y = ev->button.y;
1104
1105         item->w2i (x, y);
1106
1107         jack_nframes_t fx = trackview.editor.pixel_to_frame (x);
1108
1109         if (fx > region.length()) {
1110                 return;
1111         }
1112
1113         /* compute vertical fractional position */
1114
1115         y = 1.0 - (y / (trackview.height - NAME_HIGHLIGHT_SIZE));
1116
1117         /* map using gain line */
1118
1119         gain_line->view_to_model_y (y);
1120
1121         trackview.session().begin_reversible_command (_("add gain control point"));
1122         trackview.session().add_undo (region.envelope().get_memento());
1123
1124
1125         if (!region.envelope_active()) {
1126                 trackview.session().add_undo( bind( mem_fun(region, &AudioRegion::set_envelope_active), false) );
1127                 region.set_envelope_active(true);
1128                 trackview.session().add_redo( bind( mem_fun(region, &AudioRegion::set_envelope_active), true) );
1129         }
1130
1131         region.envelope().add (fx, y);
1132
1133         trackview.session().add_redo_no_execute (region.envelope().get_memento());
1134         trackview.session().commit_reversible_command ();
1135 }
1136
1137 void
1138 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1139 {
1140         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1141         region.envelope().erase (cp->model);
1142 }
1143
1144 void
1145 AudioRegionView::store_flags()
1146 {
1147         XMLNode *node = new XMLNode ("GUI");
1148
1149         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1150         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1151
1152         region.add_extra_xml (*node);
1153 }
1154
1155 void
1156 AudioRegionView::set_flags (XMLNode* node)
1157 {
1158         XMLProperty *prop;
1159
1160         if ((prop = node->property ("waveform-visible")) != 0) {
1161                 if (prop->value() == "yes") {
1162                         _flags |= WaveformVisible;
1163                 }
1164         }
1165
1166         if ((prop = node->property ("envelope-visible")) != 0) {
1167                 if (prop->value() == "yes") {
1168                         _flags |= EnvelopeVisible;
1169                 }
1170         }
1171 }
1172
1173 void
1174 AudioRegionView::set_waveform_shape (WaveformShape shape)
1175 {
1176         bool yn;
1177
1178         /* this slightly odd approach is to leave the door open to
1179            other "shapes" such as spectral displays, etc.
1180         */
1181
1182         switch (shape) {
1183         case Rectified:
1184                 yn = true;
1185                 break;
1186
1187         default:
1188                 yn = false;
1189                 break;
1190         }
1191
1192         if (yn != (bool) (_flags & WaveformRectified)) {
1193                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1194                         (*wave)->property_rectified() = yn;
1195                 }
1196
1197                 if (zero_line) {
1198                         if (yn) {
1199                                 zero_line->hide();
1200                         } else {
1201                                 zero_line->show();
1202                         }
1203                 }
1204
1205                 if (yn) {
1206                         _flags |= WaveformRectified;
1207                 } else {
1208                         _flags &= ~WaveformRectified;
1209                 }
1210         }
1211 }
1212
1213 std::string
1214 AudioRegionView::get_item_name ()
1215 {
1216         return region.name();
1217 }
1218
1219 void
1220 AudioRegionView::move (double x_delta, double y_delta)
1221 {
1222         if (region.locked() || (x_delta == 0 && y_delta == 0)) {
1223                 return;
1224         }
1225
1226         get_canvas_group()->move (x_delta, y_delta);
1227
1228         /* note: ghosts never leave their tracks so y_delta for them is always zero */
1229
1230         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1231                 (*i)->group->move (x_delta, 0.0);
1232         }
1233 }
1234
1235 GhostRegion*
1236 AudioRegionView::add_ghost (AutomationTimeAxisView& atv)
1237 {
1238         AudioTimeAxisView& myatv (*(dynamic_cast<AudioTimeAxisView*>(&trackview))); // ick
1239         double unit_position = region.position () / samples_per_unit;
1240         GhostRegion* ghost = new GhostRegion (atv, unit_position);
1241         uint32_t nchans;
1242
1243         nchans = myatv.get_diskstream()->n_channels();
1244
1245         for (uint32_t n = 0; n < nchans; ++n) {
1246
1247                 if (n >= region.n_channels()) {
1248                         break;
1249                 }
1250
1251                 WaveView *wave = new WaveView(*ghost->group);
1252
1253                 wave->property_data_src() =  &region;
1254                 wave->property_cache() =  wave_caches[n];
1255                 wave->property_cache_updater() = false;
1256                 wave->property_channel() = n;
1257                 wave->property_length_function() = (gpointer)region_length_from_c;
1258                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1259                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1260                 wave->property_x() =  0.0;
1261                 wave->property_samples_per_unit() =  samples_per_unit;
1262                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1263                 wave->property_wave_color() = color_map[cGhostTrackWave];
1264                 wave->property_region_start() = region.start();
1265                 //              WaveView *wave = gnome_canvas_item_new (GNOME_CANVAS_GROUP(ghost->group),
1266                 //                                                         gnome_canvas_waveview_get_type (),
1267                 //                                                         "data_src", (gpointer) &region,
1268                 //                                                         "cache", wave_caches[n],
1269                 //                                                         "cache_updater", (gboolean) false,
1270                 //                                                         "channel", (guint32) n,
1271                 //                                                         "length_function", (gpointer) region_length_from_c,
1272                 //                                                         "sourcefile_length_function",(gpointer) sourcefile_length_from_c,
1273                 //                                                         "peak_function", (gpointer) region_read_peaks_from_c,
1274                 //                                                         "x", 0.0,
1275                 //                                                         "samples_per_unit", samples_per_unit,
1276                 //                                                         "amplitude_above_axis", _amplitude_above_axis,
1277                 //                                                         "wave_color", color_map[cGhostTrackWave],
1278                 //                                                         "region_start", (guint32) region.start(),
1279                 //                                                         NULL);
1280
1281
1282                 ghost->waves.push_back(wave);
1283         }
1284
1285         ghost->set_height ();
1286         ghost->set_duration (region.length() / samples_per_unit);
1287         ghosts.push_back (ghost);
1288
1289         ghost->GoingAway.connect (mem_fun(*this, &AudioRegionView::remove_ghost));
1290
1291         return ghost;
1292 }
1293
1294 void
1295 AudioRegionView::remove_ghost (GhostRegion* ghost)
1296 {
1297         if (in_destructor) {
1298                 return;
1299         }
1300
1301         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1302                 if (*i == ghost) {
1303                         ghosts.erase (i);
1304                         break;
1305                 }
1306         }
1307 }
1308
1309 uint32_t
1310 AudioRegionView::get_fill_color ()
1311 {
1312         return fill_color;
1313 }
1314
1315 void
1316 AudioRegionView::entered ()
1317 {
1318         if (_flags & EnvelopeVisible) {
1319                 gain_line->show_all_control_points ();
1320         }
1321
1322         uint32_t r,g,b,a;
1323         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1324         a=255;
1325
1326         fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1327         fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1328 }
1329
1330 void
1331 AudioRegionView::exited ()
1332 {
1333         gain_line->hide_all_but_selected_control_points ();
1334
1335         uint32_t r,g,b,a;
1336         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1337         a=0;
1338
1339         fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1340         fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1341 }
1342
1343 void
1344 AudioRegionView::envelope_active_changed ()
1345 {
1346         gain_line->set_line_color (region.envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]);
1347 }
1348
1349 void
1350 AudioRegionView::set_waveview_data_src()
1351 {
1352
1353         double unit_length= region.length() / samples_per_unit;
1354
1355         for (uint32_t n = 0; n < waves.size(); ++n) {
1356                 // TODO: something else to let it know the channel
1357                 waves[n]->property_data_src() = &region;
1358         }
1359
1360         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1361
1362                 (*i)->set_duration (unit_length);
1363
1364                 for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) {
1365                         (*w)->property_data_src() = &region;
1366                 }
1367         }
1368
1369 }
1370
1371