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 #include <cmath>
  20 #include <cassert>
  21 #include <algorithm>
  22
  23 #include <gtkmm.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26
  27 #include "ardour/playlist.h"
  28 #include "ardour/audioregion.h"
  29 #include "ardour/audiosource.h"
  30 #include "ardour/profile.h"
  31 #include "ardour/session.h"
  32
  33 #include "pbd/memento_command.h"
  34 #include "pbd/stacktrace.h"
  35
  36 #include "evoral/Curve.hpp"
  37
  38 #include "streamview.h"
  39 #include "audio_region_view.h"
  40 #include "audio_time_axis.h"
  41 #include "simplerect.h"
  42 #include "simpleline.h"
  43 #include "waveview.h"
  44 #include "public_editor.h"
  45 #include "audio_region_editor.h"
  46 #include "region_gain_line.h"
  47 #include "control_point.h"
  48 #include "ghostregion.h"
  49 #include "audio_time_axis.h"
  50 #include "utils.h"
  51 #include "rgb_macros.h"
  52 #include "gui_thread.h"
  53 #include "ardour_ui.h"
  54
  55 #include "i18n.h"
  56
  57 #define MUTED_ALPHA 10
  58
  59 using namespace std;
  60 using namespace ARDOUR;
  61 using namespace PBD;
  62 using namespace Editing;
  63 using namespace ArdourCanvas;
  64
  65 static const int32_t sync_mark_width = 9;
  66
  67 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
  68                                   Gdk::Color const & basic_color)
  69         : RegionView (parent, tv, r, spu, basic_color)
  70         , sync_mark(0)
  71         , zero_line(0)
  72         , fade_in_shape(0)
  73         , fade_out_shape(0)
  74         , fade_in_handle(0)
  75         , fade_out_handle(0)
  76         , fade_position_line(0)
  77         , gain_line(0)
  78         , _amplitude_above_axis(1.0)
  79         , _flags(0)
  80         , fade_color(0)
  81 {
  82 }
  83
  84
  85 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
  86                                   Gdk::Color const & basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
  87         : RegionView (parent, tv, r, spu, basic_color, recording, visibility)
  88         , sync_mark(0)
  89         , zero_line(0)
  90         , fade_in_shape(0)
  91         , fade_out_shape(0)
  92         , fade_in_handle(0)
  93         , fade_out_handle(0)
  94         , fade_position_line(0)
  95         , gain_line(0)
  96         , _amplitude_above_axis(1.0)
  97         , _flags(0)
  98         , fade_color(0)
  99 {
 100 }
 101
 102
 103 AudioRegionView::AudioRegionView (const AudioRegionView& other)
 104         : sigc::trackable(other)
 105         , RegionView (other)
 106         , zero_line(0)
 107         , fade_in_shape(0)
 108         , fade_out_shape(0)
 109         , fade_in_handle(0)
 110         , fade_out_handle(0)
 111         , fade_position_line(0)
 112         , gain_line(0)
 113         , _amplitude_above_axis(1.0)
 114         , _flags(0)
 115         , fade_color(0)
 116 {
 117         Gdk::Color c;
 118         int r,g,b,a;
 119
 120         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 121         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 122
 123         init (c, false);
 124 }
 125
 126 AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
 127         : RegionView (other, boost::shared_ptr<Region> (other_region))
 128         , zero_line(0)
 129         , fade_in_shape(0)
 130         , fade_out_shape(0)
 131         , fade_in_handle(0)
 132         , fade_out_handle(0)
 133         , fade_position_line(0)
 134         , gain_line(0)
 135         , _amplitude_above_axis(1.0)
 136         , _flags(0)
 137         , fade_color(0)
 138 {
 139         Gdk::Color c;
 140         int r,g,b,a;
 141
 142         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 143         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 144
 145         init (c, true);
 146 }
 147
 148 void
 149 AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
 150 {
 151         // FIXME: Some redundancy here with RegionView::init.  Need to figure out
 152         // where order is important and where it isn't...
 153
 154         RegionView::init (basic_color, wfd);
 155
 156         XMLNode *node;
 157
 158         _amplitude_above_axis = 1.0;
 159         zero_line             = 0;
 160         _flags                = 0;
 161
 162         if ((node = _region->extra_xml ("GUI")) != 0) {
 163                 set_flags (node);
 164         } else {
 165                 _flags = WaveformVisible;
 166                 store_flags ();
 167         }
 168
 169         /* make envelope visible if it has anything interesting in it */
 170         boost::shared_ptr<AutomationList> env = audio_region()->envelope ();
 171         if (env->size() > 2 || (env->size() == 2 && env->front()->value != env->back()->value)) {
 172                 _flags |= EnvelopeVisible;
 173         }
 174
 175         compute_colors (basic_color);
 176
 177         create_waves ();
 178
 179         fade_in_shape = new ArdourCanvas::Polygon (*group);
 180         fade_in_shape->property_fill_color_rgba() = fade_color;
 181         fade_in_shape->set_data ("regionview", this);
 182
 183         fade_out_shape = new ArdourCanvas::Polygon (*group);
 184         fade_out_shape->property_fill_color_rgba() = fade_color;
 185         fade_out_shape->set_data ("regionview", this);
 186
 187         if (!_recregion) {
 188                 fade_in_handle = new ArdourCanvas::SimpleRect (*group);
 189                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
 190                 fade_in_handle->property_outline_pixels() = 0;
 191
 192                 fade_in_handle->set_data ("regionview", this);
 193
 194                 fade_out_handle = new ArdourCanvas::SimpleRect (*group);
 195                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
 196                 fade_out_handle->property_outline_pixels() = 0;
 197
 198                 fade_out_handle->set_data ("regionview", this);
 199
 200                 fade_position_line = new ArdourCanvas::SimpleLine (*group);
 201                 fade_position_line->property_color_rgba() = 0xBBBBBBAA;
 202                 fade_position_line->property_y1() = 7;
 203                 fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 204
 205                 fade_position_line->hide();
 206         }
 207
 208         setup_fade_handle_positions ();
 209
 210         if (!trackview.session()->config.get_show_region_fades()) {
 211                 set_fade_visibility (false);
 212         }
 213
 214         const string line_name = _region->name() + ":gain";
 215
 216         if (!Profile->get_sae()) {
 217                 gain_line = new AudioRegionGainLine (line_name, *this, *group, audio_region()->envelope());
 218         }
 219
 220         if (!(_flags & EnvelopeVisible)) {
 221                 gain_line->hide ();
 222         } else {
 223                 gain_line->show ();
 224         }
 225
 226         gain_line->reset ();
 227
 228         set_height (trackview.current_height());
 229
 230         region_muted ();
 231         region_sync_changed ();
 232
 233         region_resized (ARDOUR::bounds_change);
 234         set_waveview_data_src();
 235         region_locked ();
 236         envelope_active_changed ();
 237         fade_in_active_changed ();
 238         fade_out_active_changed ();
 239
 240         reset_width_dependent_items (_pixel_width);
 241
 242         fade_in_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
 243         if (fade_in_handle) {
 244                 fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 245         }
 246
 247         fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 248
 249         if (fade_out_handle) {
 250                 fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 251         }
 252
 253         set_colors ();
 254
 255         /* XXX sync mark drag? */
 256 }
 257
 258 AudioRegionView::~AudioRegionView ()
 259 {
 260         in_destructor = true;
 261
 262         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 263
 264         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 265                 gnome_canvas_waveview_cache_destroy (*cache);
 266         }
 267
 268         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 269                 delete *i;
 270         }
 271
 272         for (list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 273                 delete ((*i).second);
 274         }
 275
 276         /* all waveviews etc will be destroyed when the group is destroyed */
 277
 278         delete gain_line;
 279 }
 280
 281 boost::shared_ptr<ARDOUR::AudioRegion>
 282 AudioRegionView::audio_region() const
 283 {
 284         // "Guaranteed" to succeed...
 285         return boost::dynamic_pointer_cast<AudioRegion>(_region);
 286 }
 287
 288 void
 289 AudioRegionView::region_changed (const PropertyChange& what_changed)
 290 {
 291         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_changed, what_changed);
 292         // cerr << "AudioRegionView::region_changed() called" << endl;
 293
 294         RegionView::region_changed (what_changed);
 295
 296         if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
 297                 region_scale_amplitude_changed ();
 298         }
 299         if (what_changed.contains (ARDOUR::Properties::fade_in)) {
 300                 fade_in_changed ();
 301         }
 302         if (what_changed.contains (ARDOUR::Properties::fade_out)) {
 303                 fade_out_changed ();
 304         }
 305         if (what_changed.contains (ARDOUR::Properties::fade_in_active)) {
 306                 fade_in_active_changed ();
 307         }
 308         if (what_changed.contains (ARDOUR::Properties::fade_out_active)) {
 309                 fade_out_active_changed ();
 310         }
 311         if (what_changed.contains (ARDOUR::Properties::envelope_active)) {
 312                 envelope_active_changed ();
 313         }
 314         if (what_changed.contains (ARDOUR::Properties::valid_transients)) {
 315                 transients_changed ();
 316         }
 317 }
 318
 319 void
 320 AudioRegionView::fade_in_changed ()
 321 {
 322         reset_fade_in_shape ();
 323 }
 324
 325 void
 326 AudioRegionView::fade_out_changed ()
 327 {
 328         reset_fade_out_shape ();
 329 }
 330 void
 331 AudioRegionView::fade_in_active_changed ()
 332 {
 333         if (audio_region()->fade_in_active()) {
 334                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                          // FIXME make a themeable colour
 335                 fade_in_shape->property_width_pixels() = 1;
 336         } else {
 337                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                          // FIXME make a themeable colour
 338                 fade_in_shape->property_width_pixels() = 1;
 339         }
 340 }
 341
 342 void
 343 AudioRegionView::fade_out_active_changed ()
 344 {
 345         if (audio_region()->fade_out_active()) {
 346                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                         // FIXME make a themeable colour
 347                 fade_out_shape->property_width_pixels() = 1;
 348         } else {
 349                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                         // FIXME make a themeable colour
 350                 fade_out_shape->property_width_pixels() = 1;
 351         }
 352 }
 353
 354
 355 void
 356 AudioRegionView::region_scale_amplitude_changed ()
 357 {
 358         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
 359
 360         for (uint32_t n = 0; n < waves.size(); ++n) {
 361                 // force a reload of the cache
 362                 waves[n]->property_data_src() = _region.get();
 363         }
 364 }
 365
 366 void
 367 AudioRegionView::region_renamed ()
 368 {
 369         std::string str = RegionView::make_name ();
 370
 371         if (audio_region()->speed_mismatch (trackview.session()->frame_rate())) {
 372                 str = string ("*") + str;
 373         }
 374
 375         if (_region->muted()) {
 376                 str = string ("!") + str;
 377         }
 378
 379         set_item_name (str, this);
 380         set_name_text (str);
 381 }
 382
 383 void
 384 AudioRegionView::region_resized (const PropertyChange& what_changed)
 385 {
 386         AudioGhostRegion* agr;
 387
 388         RegionView::region_resized(what_changed);
 389         PropertyChange interesting_stuff;
 390
 391         interesting_stuff.add (ARDOUR::Properties::start);
 392         interesting_stuff.add (ARDOUR::Properties::length);
 393
 394         if (what_changed.contains (interesting_stuff)) {
 395
 396                 for (uint32_t n = 0; n < waves.size(); ++n) {
 397                         waves[n]->property_region_start() = _region->start();
 398                 }
 399
 400                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 401                         if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
 402
 403                                 for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
 404                                         (*w)->property_region_start() = _region->start();
 405                                 }
 406                         }
 407                 }
 408
 409                 /* hide transient lines that extend beyond the region end */
 410
 411                 list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
 412
 413                 for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 414                         if ((*l).first > _region->length()- 1){
 415                           (*l).second->hide();
 416                         }
 417                         else {
 418                           (*l).second->show();
 419                         }
 420                 }
 421         }
 422 }
 423
 424 void
 425 AudioRegionView::reset_width_dependent_items (double pixel_width)
 426 {
 427         RegionView::reset_width_dependent_items(pixel_width);
 428         assert(_pixel_width == pixel_width);
 429
 430         if (zero_line) {
 431                 zero_line->property_x2() = pixel_width - 1.0;
 432         }
 433
 434         if (fade_in_handle) {
 435                 if (pixel_width <= 6.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
 436                         fade_in_handle->hide();
 437                         fade_out_handle->hide();
 438                 }
 439                 else {
 440                         fade_in_handle->show();
 441                         fade_out_handle->show();
 442                 }
 443         }
 444
 445         AnalysisFeatureList analysis_features = _region->transients();
 446         AnalysisFeatureList::const_iterator i;
 447         list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
 448
 449         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 450                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
 451                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
 452         }
 453
 454         reset_fade_shapes ();
 455 }
 456
 457 void
 458 AudioRegionView::region_muted ()
 459 {
 460         RegionView::region_muted();
 461
 462         for (uint32_t n=0; n < waves.size(); ++n) {
 463                 if (_region->muted()) {
 464                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 465                 } else {
 466                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 467                 }
 468         }
 469 }
 470
 471 void
 472 AudioRegionView::setup_fade_handle_positions()
 473 {
 474         /* position of fade handle offset from the top of the region view */
 475         double const handle_pos = 2;
 476         /* height of fade handles */
 477         double const handle_height = 5;
 478
 479         if (fade_in_handle) {
 480                 fade_in_handle->property_y1() = handle_pos;
 481                 fade_in_handle->property_y2() = handle_pos + handle_height;
 482         }
 483
 484         if (fade_out_handle) {
 485                 fade_out_handle->property_y1() = handle_pos;
 486                 fade_out_handle->property_y2() = handle_pos + handle_height;
 487         }
 488 }
 489
 490 void
 491 AudioRegionView::set_height (gdouble height)
 492 {
 493         RegionView::set_height (height);
 494
 495         uint32_t wcnt = waves.size();
 496
 497         for (uint32_t n = 0; n < wcnt; ++n) {
 498                 gdouble ht;
 499
 500                 if (height < NAME_HIGHLIGHT_THRESH) {
 501                         ht = ((height - 2 * wcnt) / (double) wcnt);
 502                 } else {
 503                         ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 504                 }
 505
 506                 gdouble yoff = n * (ht + 1);
 507
 508                 waves[n]->property_height() = ht;
 509                 waves[n]->property_y() = yoff + 2;
 510         }
 511
 512         if (gain_line) {
 513
 514                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 515                         gain_line->hide ();
 516                 } else {
 517                         if (_flags & EnvelopeVisible) {
 518                                 gain_line->show ();
 519                         }
 520                 }
 521
 522                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
 523         }
 524
 525         manage_zero_line ();
 526         reset_fade_shapes ();
 527
 528         /* Update hights for any active feature lines */
 529         list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
 530
 531         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 532                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 533         }
 534
 535         if (fade_position_line) {
 536                 if (height < NAME_HIGHLIGHT_THRESH) {
 537                         fade_position_line->property_y2() = _height - 1;
 538                 }
 539                 else {
 540                         fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 541                 }
 542         }
 543
 544         if (name_pixbuf) {
 545                 name_pixbuf->raise_to_top();
 546         }
 547 }
 548
 549 void
 550 AudioRegionView::manage_zero_line ()
 551 {
 552         if (!zero_line) {
 553                 return;
 554         }
 555
 556         if (_height >= 100) {
 557                 double const wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
 558                 zero_line->property_y1() = wave_midpoint;
 559                 zero_line->property_y2() = wave_midpoint;
 560                 zero_line->show();
 561         } else {
 562                 zero_line->hide();
 563         }
 564 }
 565
 566 void
 567 AudioRegionView::reset_fade_shapes ()
 568 {
 569         reset_fade_in_shape ();
 570         reset_fade_out_shape ();
 571 }
 572
 573 void
 574 AudioRegionView::reset_fade_in_shape ()
 575 {
 576         reset_fade_in_shape_width ((framecnt_t) audio_region()->fade_in()->back()->when);
 577 }
 578
 579 void
 580 AudioRegionView::reset_fade_in_shape_width (framecnt_t width)
 581 {
 582         if (fade_in_handle == 0) {
 583                 return;
 584         }
 585
 586         /* smallest size for a fade is 64 frames */
 587
 588         width = std::max ((framecnt_t) 64, width);
 589
 590         Points* points;
 591
 592         /* round here to prevent little visual glitches with sub-pixel placement */
 593         double const pwidth = rint (width / samples_per_unit);
 594         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 595         double h;
 596
 597         if (_height < 5) {
 598                 fade_in_shape->hide();
 599                 fade_in_handle->hide();
 600                 return;
 601         }
 602
 603         double const handle_center = pwidth;
 604
 605         /* Put the fade in handle so that its left side is at the end-of-fade line */
 606         fade_in_handle->property_x1() = handle_center;
 607         fade_in_handle->property_x2() = handle_center + 6;
 608
 609         if (pwidth < 5) {
 610                 fade_in_shape->hide();
 611                 return;
 612         }
 613
 614         if (trackview.session()->config.get_show_region_fades()) {
 615                 fade_in_shape->show();
 616         }
 617
 618         float curve[npoints];
 619         audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
 620
 621         points = get_canvas_points ("fade in shape", npoints + 3);
 622
 623         if (_height >= NAME_HIGHLIGHT_THRESH) {
 624                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 625         } else {
 626                 h = _height;
 627         }
 628
 629         /* points *MUST* be in anti-clockwise order */
 630
 631         uint32_t pi, pc;
 632         double xdelta = pwidth/npoints;
 633
 634         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 635                 (*points)[pi].set_x(1 + (pc * xdelta));
 636                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 637         }
 638
 639         /* fold back */
 640
 641         (*points)[pi].set_x(pwidth);
 642         (*points)[pi++].set_y(2);
 643
 644         (*points)[pi].set_x(1);
 645         (*points)[pi++].set_y(2);
 646
 647         /* connect the dots ... */
 648
 649         (*points)[pi] = (*points)[0];
 650
 651         fade_in_shape->property_points() = *points;
 652         delete points;
 653
 654         /* ensure trim handle stays on top */
 655         if (frame_handle_start) {
 656                 frame_handle_start->raise_to_top();
 657         }
 658 }
 659
 660 void
 661 AudioRegionView::reset_fade_out_shape ()
 662 {
 663         reset_fade_out_shape_width ((framecnt_t) audio_region()->fade_out()->back()->when);
 664 }
 665
 666 void
 667 AudioRegionView::reset_fade_out_shape_width (framecnt_t width)
 668 {
 669         if (fade_out_handle == 0) {
 670                 return;
 671         }
 672
 673         /* smallest size for a fade is 64 frames */
 674
 675         width = std::max ((framecnt_t) 64, width);
 676
 677         Points* points;
 678
 679         /* round here to prevent little visual glitches with sub-pixel placement */
 680         double const pwidth = rint (width / samples_per_unit);
 681         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 682         double h;
 683
 684         if (_height < 5) {
 685                 fade_out_shape->hide();
 686                 fade_out_handle->hide();
 687                 return;
 688         }
 689
 690         double const handle_center = (_region->length() - width) / samples_per_unit;
 691
 692         /* Put the fade out handle so that its right side is at the end-of-fade line;
 693          * it's `one out' for precise pixel accuracy.
 694          */
 695         fade_out_handle->property_x1() = handle_center - 5;
 696         fade_out_handle->property_x2() = handle_center + 1;
 697
 698         /* don't show shape if its too small */
 699
 700         if (pwidth < 5) {
 701                 fade_out_shape->hide();
 702                 return;
 703         }
 704
 705         if (trackview.session()->config.get_show_region_fades()) {
 706                 fade_out_shape->show();
 707         }
 708
 709         float curve[npoints];
 710         audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
 711
 712         if (_height >= NAME_HIGHLIGHT_THRESH) {
 713                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 714         } else {
 715                 h = _height;
 716         }
 717
 718         /* points *MUST* be in anti-clockwise order */
 719
 720         points = get_canvas_points ("fade out shape", npoints + 3);
 721
 722         uint32_t pi, pc;
 723         double xdelta = pwidth/npoints;
 724
 725         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 726                 (*points)[pi].set_x(_pixel_width - pwidth + (pc * xdelta));
 727                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 728         }
 729
 730         /* fold back */
 731
 732         (*points)[pi].set_x(_pixel_width);
 733         (*points)[pi++].set_y(h);
 734
 735         (*points)[pi].set_x(_pixel_width);
 736         (*points)[pi++].set_y(2);
 737
 738         /* connect the dots ... */
 739
 740         (*points)[pi] = (*points)[0];
 741
 742         fade_out_shape->property_points() = *points;
 743         delete points;
 744
 745         /* ensure trim handle stays on top */
 746         if (frame_handle_end) {
 747                 frame_handle_end->raise_to_top();
 748         }
 749 }
 750
 751 void
 752 AudioRegionView::set_samples_per_unit (gdouble spu)
 753 {
 754         RegionView::set_samples_per_unit (spu);
 755
 756         if (_flags & WaveformVisible) {
 757                 for (uint32_t n=0; n < waves.size(); ++n) {
 758                         waves[n]->property_samples_per_unit() = spu;
 759                 }
 760         }
 761
 762         if (gain_line) {
 763                 gain_line->reset ();
 764         }
 765
 766         reset_fade_shapes ();
 767 }
 768
 769 void
 770 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 771 {
 772         for (uint32_t n=0; n < waves.size(); ++n) {
 773                 waves[n]->property_amplitude_above_axis() = spp;
 774         }
 775 }
 776
 777 void
 778 AudioRegionView::compute_colors (Gdk::Color const & basic_color)
 779 {
 780         RegionView::compute_colors (basic_color);
 781
 782         /* gain color computed in envelope_active_changed() */
 783
 784         fade_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 785 }
 786
 787 void
 788 AudioRegionView::set_colors ()
 789 {
 790         RegionView::set_colors();
 791
 792         if (gain_line) {
 793                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 794         }
 795
 796         for (uint32_t n=0; n < waves.size(); ++n) {
 797                 if (_region->muted()) {
 798                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 799                 } else {
 800                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 801                 }
 802
 803                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 804                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 805         }
 806 }
 807
 808 void
 809 AudioRegionView::set_waveform_visible (bool yn)
 810 {
 811         if (((_flags & WaveformVisible) != yn)) {
 812                 if (yn) {
 813                         for (uint32_t n=0; n < waves.size(); ++n) {
 814                                 /* make sure the zoom level is correct, since we don't update
 815                                    this when waveforms are hidden.
 816                                 */
 817                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 818                                 waves[n]->show();
 819                         }
 820                         _flags |= WaveformVisible;
 821                 } else {
 822                         for (uint32_t n=0; n < waves.size(); ++n) {
 823                                 waves[n]->hide();
 824                         }
 825                         _flags &= ~WaveformVisible;
 826                 }
 827                 store_flags ();
 828         }
 829 }
 830
 831 void
 832 AudioRegionView::temporarily_hide_envelope ()
 833 {
 834         if (gain_line) {
 835                 gain_line->hide ();
 836         }
 837 }
 838
 839 void
 840 AudioRegionView::unhide_envelope ()
 841 {
 842         if (gain_line && (_flags & EnvelopeVisible)) {
 843                 gain_line->show ();
 844         }
 845 }
 846
 847 void
 848 AudioRegionView::set_envelope_visible (bool yn)
 849 {
 850         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 851                 if (yn) {
 852                         gain_line->show ();
 853                         _flags |= EnvelopeVisible;
 854                 } else {
 855                         gain_line->hide ();
 856                         _flags &= ~EnvelopeVisible;
 857                 }
 858                 store_flags ();
 859         }
 860 }
 861
 862 void
 863 AudioRegionView::create_waves ()
 864 {
 865         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 866         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 867
 868         if (!atv.track()) {
 869                 return;
 870         }
 871
 872         ChanCount nchans = atv.track()->n_channels();
 873
 874         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
 875         //              << " and channels = " << nchans.n_audio() << endl;
 876
 877         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 878         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 879                 tmp_waves.push_back (0);
 880         }
 881
 882         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 883                 delete *i;
 884         }
 885
 886         _data_ready_connections.clear ();
 887
 888         for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
 889                 _data_ready_connections.push_back (0);
 890         }
 891
 892         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 893
 894                 if (n >= audio_region()->n_channels()) {
 895                         break;
 896                 }
 897
 898                 wave_caches.push_back (WaveView::create_cache ());
 899
 900                 // cerr << "\tchannel " << n << endl;
 901
 902                 if (wait_for_data) {
 903                         if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
 904                                 // cerr << "\tData is ready\n";
 905                                 create_one_wave (n, true);
 906                         } else {
 907                                 // cerr << "\tdata is not ready\n";
 908                                 // we'll get a PeaksReady signal from the source in the future
 909                                 // and will call create_one_wave(n) then.
 910                         }
 911
 912                 } else {
 913                         // cerr << "\tdon't delay, display today!\n";
 914                         create_one_wave (n, true);
 915                 }
 916
 917         }
 918 }
 919
 920 void
 921 AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 922 {
 923         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 924         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 925         uint32_t nchans = atv.track()->n_channels().n_audio();
 926         uint32_t n;
 927         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 928         gdouble ht;
 929
 930         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 931                 ht = ((trackview.current_height()) / (double) nchans);
 932         } else {
 933                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 934         }
 935
 936         gdouble yoff = which * ht;
 937
 938         WaveView *wave = new WaveView(*group);
 939
 940         wave->property_data_src() = (gpointer) _region.get();
 941         wave->property_cache() =  wave_caches[which];
 942         wave->property_cache_updater() = true;
 943         wave->property_channel() =  which;
 944         wave->property_length_function() = (gpointer) region_length_from_c;
 945         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 946         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 947         wave->property_x() =  0.0;
 948         wave->property_y() =  yoff;
 949         wave->property_height() =  (double) ht;
 950         wave->property_samples_per_unit() =  samples_per_unit;
 951         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 952
 953         if (_recregion) {
 954                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 955                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 956         } else {
 957                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 958                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 959         }
 960
 961         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 962         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 963         wave->property_region_start() = _region->start();
 964         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 965         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 966
 967         if (!(_flags & WaveformVisible)) {
 968                 wave->hide();
 969         }
 970
 971         /* note: calling this function is serialized by the lock
 972            held in the peak building thread that signals that
 973            peaks are ready for use *or* by the fact that it is
 974            called one by one from the GUI thread.
 975         */
 976
 977         if (which < nchans) {
 978                 tmp_waves[which] = wave;
 979         } else {
 980                 /* n-channel track, >n-channel source */
 981         }
 982
 983         /* see if we're all ready */
 984
 985         for (n = 0; n < nchans; ++n) {
 986                 if (tmp_waves[n] == 0) {
 987                         break;
 988                 }
 989         }
 990
 991         if (n == nwaves && waves.empty()) {
 992                 /* all waves are ready */
 993                 tmp_waves.resize(nwaves);
 994
 995                 waves = tmp_waves;
 996                 tmp_waves.clear ();
 997
 998                 /* all waves created, don't hook into peaks ready anymore */
 999                 delete _data_ready_connections[which];
1000                 _data_ready_connections[which] = 0;
1001
1002 #if 0
1003                 if (!zero_line) {
1004                         zero_line = new ArdourCanvas::SimpleLine (*group);
1005                         zero_line->property_x1() = (gdouble) 1.0;
1006                         zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
1007                         zero_line->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1008                         manage_zero_line ();
1009                 }
1010 #endif
1011         }
1012 }
1013
1014 void
1015 AudioRegionView::peaks_ready_handler (uint32_t which)
1016 {
1017         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
1018         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
1019 }
1020
1021 void
1022 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1023 {
1024         if (gain_line == 0) {
1025                 return;
1026         }
1027
1028         double x, y;
1029
1030         /* don't create points that can't be seen */
1031
1032         set_envelope_visible (true);
1033
1034         x = ev->button.x;
1035         y = ev->button.y;
1036
1037         item->w2i (x, y);
1038
1039         framepos_t fx = trackview.editor().pixel_to_frame (x);
1040
1041         if (fx > _region->length()) {
1042                 return;
1043         }
1044
1045         /* compute vertical fractional position */
1046
1047         y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
1048
1049         /* map using gain line */
1050
1051         gain_line->view_to_model_coord (x, y);
1052
1053         /* XXX STATEFUL: can't convert to stateful diff until we
1054            can represent automation data with it.
1055         */
1056
1057         trackview.session()->begin_reversible_command (_("add gain control point"));
1058         XMLNode &before = audio_region()->envelope()->get_state();
1059
1060         if (!audio_region()->envelope_active()) {
1061                 XMLNode &region_before = audio_region()->get_state();
1062                 audio_region()->set_envelope_active(true);
1063                 XMLNode &region_after = audio_region()->get_state();
1064                 trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
1065         }
1066
1067         audio_region()->envelope()->add (fx, y);
1068
1069         XMLNode &after = audio_region()->envelope()->get_state();
1070         trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
1071         trackview.session()->commit_reversible_command ();
1072 }
1073
1074 void
1075 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
1076 {
1077         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1078         audio_region()->envelope()->erase (cp->model());
1079 }
1080
1081 void
1082 AudioRegionView::store_flags()
1083 {
1084         XMLNode *node = new XMLNode ("GUI");
1085
1086         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1087         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1088         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1089         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1090
1091         _region->add_extra_xml (*node);
1092 }
1093
1094 void
1095 AudioRegionView::set_flags (XMLNode* node)
1096 {
1097         XMLProperty *prop;
1098
1099         if ((prop = node->property ("waveform-visible")) != 0) {
1100                 if (string_is_affirmative (prop->value())) {
1101                         _flags |= WaveformVisible;
1102                 }
1103         }
1104
1105         if ((prop = node->property ("envelope-visible")) != 0) {
1106                 if (string_is_affirmative (prop->value())) {
1107                         _flags |= EnvelopeVisible;
1108                 }
1109         }
1110
1111         if ((prop = node->property ("waveform-rectified")) != 0) {
1112                 if (string_is_affirmative (prop->value())) {
1113                         _flags |= WaveformRectified;
1114                 }
1115         }
1116
1117         if ((prop = node->property ("waveform-logscaled")) != 0) {
1118                 if (string_is_affirmative (prop->value())) {
1119                         _flags |= WaveformLogScaled;
1120                 }
1121         }
1122 }
1123
1124 void
1125 AudioRegionView::set_waveform_shape (WaveformShape shape)
1126 {
1127         bool yn;
1128
1129         /* this slightly odd approach is to leave the door open to
1130            other "shapes" such as spectral displays, etc.
1131         */
1132
1133         switch (shape) {
1134         case Rectified:
1135                 yn = true;
1136                 break;
1137
1138         default:
1139                 yn = false;
1140                 break;
1141         }
1142
1143         if (yn != (bool) (_flags & WaveformRectified)) {
1144                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1145                         (*wave)->property_rectified() = yn;
1146                 }
1147
1148                 if (zero_line) {
1149                         if (yn) {
1150                                 zero_line->hide();
1151                         } else {
1152                                 zero_line->show();
1153                         }
1154                 }
1155
1156                 if (yn) {
1157                         _flags |= WaveformRectified;
1158                 } else {
1159                         _flags &= ~WaveformRectified;
1160                 }
1161                 store_flags ();
1162         }
1163 }
1164
1165 void
1166 AudioRegionView::set_waveform_scale (WaveformScale scale)
1167 {
1168         bool yn = (scale == Logarithmic);
1169
1170         if (yn != (bool) (_flags & WaveformLogScaled)) {
1171                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1172                         (*wave)->property_logscaled() = yn;
1173                 }
1174
1175                 if (yn) {
1176                         _flags |= WaveformLogScaled;
1177                 } else {
1178                         _flags &= ~WaveformLogScaled;
1179                 }
1180                 store_flags ();
1181         }
1182 }
1183
1184
1185 GhostRegion*
1186 AudioRegionView::add_ghost (TimeAxisView& tv)
1187 {
1188         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1189         assert(rtv);
1190
1191         double unit_position = _region->position () / samples_per_unit;
1192         AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
1193         uint32_t nchans;
1194
1195         nchans = rtv->track()->n_channels().n_audio();
1196
1197         for (uint32_t n = 0; n < nchans; ++n) {
1198
1199                 if (n >= audio_region()->n_channels()) {
1200                         break;
1201                 }
1202
1203                 WaveView *wave = new WaveView(*ghost->group);
1204
1205                 wave->property_data_src() = _region.get();
1206                 wave->property_cache() =  wave_caches[n];
1207                 wave->property_cache_updater() = false;
1208                 wave->property_channel() = n;
1209                 wave->property_length_function() = (gpointer)region_length_from_c;
1210                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1211                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1212                 wave->property_x() =  0.0;
1213                 wave->property_samples_per_unit() =  samples_per_unit;
1214                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1215
1216                 wave->property_region_start() = _region->start();
1217
1218                 ghost->waves.push_back(wave);
1219         }
1220
1221         ghost->set_height ();
1222         ghost->set_duration (_region->length() / samples_per_unit);
1223         ghost->set_colors();
1224         ghosts.push_back (ghost);
1225
1226         return ghost;
1227 }
1228
1229 void
1230 AudioRegionView::entered (bool internal_editing)
1231 {
1232         trackview.editor().set_current_trimmable (_region);
1233         trackview.editor().set_current_movable (_region);
1234
1235         if (gain_line && _flags & EnvelopeVisible) {
1236                 gain_line->show_all_control_points ();
1237         }
1238
1239         if (fade_in_handle && !internal_editing) {
1240                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1241                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1242         }
1243 }
1244
1245 void
1246 AudioRegionView::exited ()
1247 {
1248         trackview.editor().set_current_trimmable (boost::shared_ptr<Trimmable>());
1249         trackview.editor().set_current_movable (boost::shared_ptr<Movable>());
1250
1251         if (gain_line) {
1252                 gain_line->hide_all_but_selected_control_points ();
1253         }
1254
1255         if (fade_in_handle) {
1256                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1257                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1258         }
1259 }
1260
1261 void
1262 AudioRegionView::envelope_active_changed ()
1263 {
1264         if (gain_line) {
1265                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1266         }
1267 }
1268
1269 void
1270 AudioRegionView::set_waveview_data_src()
1271 {
1272         AudioGhostRegion* agr;
1273         double unit_length= _region->length() / samples_per_unit;
1274
1275         for (uint32_t n = 0; n < waves.size(); ++n) {
1276                 // TODO: something else to let it know the channel
1277                 waves[n]->property_data_src() = _region.get();
1278         }
1279
1280         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1281
1282                 (*i)->set_duration (unit_length);
1283
1284                 if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
1285                         for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
1286                                 (*w)->property_data_src() = _region.get();
1287                         }
1288                 }
1289         }
1290
1291 }
1292
1293 void
1294 AudioRegionView::color_handler ()
1295 {
1296         //case cMutedWaveForm:
1297         //case cWaveForm:
1298         //case cWaveFormClip:
1299         //case cZeroLine:
1300         set_colors ();
1301
1302         //case cGainLineInactive:
1303         //case cGainLine:
1304         envelope_active_changed();
1305
1306 }
1307
1308 void
1309 AudioRegionView::set_frame_color ()
1310 {
1311         if (!frame) {
1312                 return;
1313         }
1314
1315         if (_region->opaque()) {
1316                 fill_opacity = 130;
1317         } else {
1318                 fill_opacity = 0;
1319         }
1320
1321         TimeAxisViewItem::set_frame_color ();
1322
1323         if (_selected) {
1324                 for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1325                         if (_region->muted()) {
1326                                 (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1327                         } else {
1328                                 (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1329                                 (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1330                         }
1331                 }
1332         } else {
1333                 if (_recregion) {
1334                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1335                                 if (_region->muted()) {
1336                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1337                                 } else {
1338                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1339                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1340                                 }
1341                         }
1342                 } else {
1343                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1344                                 if (_region->muted()) {
1345                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1346                                 } else {
1347                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1348                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1349                                 }
1350                         }
1351                 }
1352         }
1353 }
1354
1355 void
1356 AudioRegionView::set_fade_visibility (bool yn)
1357 {
1358         if (yn) {
1359                 if (fade_in_shape) {
1360                         fade_in_shape->show();
1361                 }
1362                 if (fade_out_shape) {
1363                         fade_out_shape->show ();
1364                 }
1365                 if (fade_in_handle) {
1366                         fade_in_handle->show ();
1367                 }
1368                 if (fade_out_handle) {
1369                         fade_out_handle->show ();
1370                 }
1371         } else {
1372                 if (fade_in_shape) {
1373                         fade_in_shape->hide();
1374                 }
1375                 if (fade_out_shape) {
1376                         fade_out_shape->hide ();
1377                 }
1378                 if (fade_in_handle) {
1379                         fade_in_handle->hide ();
1380                 }
1381                 if (fade_out_handle) {
1382                         fade_out_handle->hide ();
1383                 }
1384         }
1385 }
1386
1387 void
1388 AudioRegionView::update_coverage_frames (LayerDisplay d)
1389 {
1390         RegionView::update_coverage_frames (d);
1391
1392         if (fade_in_handle) {
1393                 fade_in_handle->raise_to_top ();
1394                 fade_out_handle->raise_to_top ();
1395         }
1396 }
1397
1398 void
1399 AudioRegionView::show_region_editor ()
1400 {
1401         if (editor == 0) {
1402                 editor = new AudioRegionEditor (trackview.session(), audio_region());
1403         }
1404
1405         editor->present ();
1406         editor->set_position (Gtk::WIN_POS_MOUSE);
1407         editor->show_all();
1408 }
1409
1410
1411 void
1412 AudioRegionView::show_fade_line (framepos_t pos)
1413 {
1414         fade_position_line->property_x1() = trackview.editor().frame_to_pixel (pos);
1415         fade_position_line->property_x2() = trackview.editor().frame_to_pixel (pos);
1416         fade_position_line->show ();
1417         fade_position_line->raise_to_top ();
1418 }
1419
1420 void
1421 AudioRegionView::hide_fade_line ()
1422 {
1423         fade_position_line->hide ();
1424 }
1425
1426
1427 void
1428 AudioRegionView::transients_changed ()
1429 {
1430         AnalysisFeatureList analysis_features = _region->transients();
1431
1432         while (feature_lines.size() < analysis_features.size()) {
1433                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*group);
1434                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1435                 feature_lines.push_back (make_pair(0, l));
1436         }
1437
1438         while (feature_lines.size() > analysis_features.size()) {
1439                 ArdourCanvas::SimpleLine *line = feature_lines.back().second;
1440                 feature_lines.pop_back ();
1441                 delete line;
1442         }
1443
1444         AnalysisFeatureList::const_iterator i;
1445         list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
1446
1447         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1448                 (*l).first = *i;
1449                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
1450                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
1451                 (*l).second->property_y1() = 2;
1452                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
1453                 (*l).second->set_data("regionview", this);
1454                 (*l).second->show ();
1455                 (*l).second->raise_to_top ();
1456
1457                 (*l).second->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), (*l).second, this));
1458         }
1459 }
1460
1461 void
1462 AudioRegionView::update_transient(float /*old_pos*/, float new_pos)
1463 {
1464         /* Find frame at old pos, calulate new frame then update region transients*/
1465         list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
1466
1467         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1468                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1469                 if (rint(new_pos) == rint((*l).second->property_x1())) {
1470
1471                     framepos_t old_frame = (*l).first;
1472                     framepos_t new_frame = trackview.editor().pixel_to_frame (new_pos);
1473
1474                     _region->update_transient (old_frame, new_frame);
1475
1476                     break;
1477                 }
1478         }
1479 }
1480
1481 void
1482 AudioRegionView::remove_transient(float pos)
1483 {
1484         /* Find frame at old pos, calulate new frame then update region transients*/
1485         list<std::pair<framepos_t, ArdourCanvas::SimpleLine*> >::iterator l;
1486
1487         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1488                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1489                 if (rint(pos) == rint((*l).second->property_x1())) {
1490                     _region->remove_transient ((*l).first);
1491                     break;
1492                 }
1493         }
1494 }
1495
1496 void
1497 AudioRegionView::thaw_after_trim ()
1498 {
1499         RegionView::thaw_after_trim ();
1500
1501         unhide_envelope ();
1502 }