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         , gain_line(0)
  77         , _amplitude_above_axis(1.0)
  78         , _flags(0)
  79         , fade_color(0)
  80 {
  81 }
  82
  83
  84 AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<AudioRegion> r, double spu,
  85                                   Gdk::Color const & basic_color, bool recording, TimeAxisViewItem::Visibility visibility)
  86         : RegionView (parent, tv, r, spu, basic_color, recording, visibility)
  87         , sync_mark(0)
  88         , zero_line(0)
  89         , fade_in_shape(0)
  90         , fade_out_shape(0)
  91         , fade_in_handle(0)
  92         , fade_out_handle(0)
  93         , gain_line(0)
  94         , _amplitude_above_axis(1.0)
  95         , _flags(0)
  96         , fade_color(0)
  97 {
  98 }
  99
 100
 101 AudioRegionView::AudioRegionView (const AudioRegionView& other)
 102         : sigc::trackable(other)
 103         , RegionView (other)
 104         , zero_line(0)
 105         , fade_in_shape(0)
 106         , fade_out_shape(0)
 107         , fade_in_handle(0)
 108         , fade_out_handle(0)
 109         , gain_line(0)
 110         , _amplitude_above_axis(1.0)
 111         , _flags(0)
 112         , fade_color(0)
 113 {
 114         Gdk::Color c;
 115         int r,g,b,a;
 116
 117         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 118         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 119
 120         init (c, false);
 121 }
 122
 123 AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
 124         : RegionView (other, boost::shared_ptr<Region> (other_region))
 125         , zero_line(0)
 126         , fade_in_shape(0)
 127         , fade_out_shape(0)
 128         , fade_in_handle(0)
 129         , fade_out_handle(0)
 130         , gain_line(0)
 131         , _amplitude_above_axis(1.0)
 132         , _flags(0)
 133         , fade_color(0)
 134 {
 135         Gdk::Color c;
 136         int r,g,b,a;
 137
 138         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 139         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 140
 141         init (c, true);
 142 }
 143
 144 void
 145 AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
 146 {
 147         // FIXME: Some redundancy here with RegionView::init.  Need to figure out
 148         // where order is important and where it isn't...
 149
 150         RegionView::init (basic_color, wfd);
 151
 152         XMLNode *node;
 153
 154         _amplitude_above_axis = 1.0;
 155         zero_line             = 0;
 156         _flags                = 0;
 157
 158         if ((node = _region->extra_xml ("GUI")) != 0) {
 159                 set_flags (node);
 160         } else {
 161                 _flags = WaveformVisible;
 162                 store_flags ();
 163         }
 164
 165         /* make envelope visible if it has anything interesting in it */
 166         if (audio_region()->envelope()->size() > 2) {
 167                 _flags |= EnvelopeVisible;
 168         }
 169
 170         compute_colors (basic_color);
 171
 172         create_waves ();
 173
 174         fade_in_shape = new ArdourCanvas::Polygon (*group);
 175         fade_in_shape->property_fill_color_rgba() = fade_color;
 176         fade_in_shape->set_data ("regionview", this);
 177
 178         fade_out_shape = new ArdourCanvas::Polygon (*group);
 179         fade_out_shape->property_fill_color_rgba() = fade_color;
 180         fade_out_shape->set_data ("regionview", this);
 181
 182         if (!_recregion) {
 183                 uint32_t r,g,b,a;
 184                 UINT_TO_RGBA(fill_color,&r,&g,&b,&a);
 185
 186                 fade_in_handle = new ArdourCanvas::SimpleRect (*group);
 187                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 188                 fade_in_handle->property_outline_pixels() = 0;
 189
 190                 fade_in_handle->set_data ("regionview", this);
 191
 192                 fade_out_handle = new ArdourCanvas::SimpleRect (*group);
 193                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0);
 194                 fade_out_handle->property_outline_pixels() = 0;
 195
 196                 fade_out_handle->set_data ("regionview", this);
 197         }
 198
 199         setup_fade_handle_positions ();
 200
 201         if (!trackview.session()->config.get_show_region_fades()) {
 202                 set_fade_visibility (false);
 203         }
 204
 205         const string line_name = _region->name() + ":gain";
 206
 207         if (!Profile->get_sae()) {
 208                 gain_line = new AudioRegionGainLine (line_name, *this, *group, audio_region()->envelope());
 209         }
 210
 211         if (!(_flags & EnvelopeVisible)) {
 212                 gain_line->hide ();
 213         } else {
 214                 gain_line->show ();
 215         }
 216
 217         gain_line->reset ();
 218
 219         set_height (trackview.current_height());
 220
 221         region_muted ();
 222         region_sync_changed ();
 223
 224         region_resized (ARDOUR::bounds_change);
 225         set_waveview_data_src();
 226         region_locked ();
 227         envelope_active_changed ();
 228         fade_in_active_changed ();
 229         fade_out_active_changed ();
 230
 231         reset_width_dependent_items (_pixel_width);
 232
 233         fade_in_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
 234         if (fade_in_handle) {
 235                 fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 236         }
 237
 238         fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 239
 240         if (fade_out_handle) {
 241                 fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 242         }
 243
 244         set_colors ();
 245
 246         /* XXX sync mark drag? */
 247 }
 248
 249 AudioRegionView::~AudioRegionView ()
 250 {
 251         in_destructor = true;
 252
 253         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 254
 255         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 256                 gnome_canvas_waveview_cache_destroy (*cache);
 257         }
 258
 259         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 260                 delete *i;
 261         }
 262
 263         for (list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 264                 delete ((*i).second);
 265         }
 266
 267         /* all waveviews etc will be destroyed when the group is destroyed */
 268
 269         delete gain_line;
 270 }
 271
 272 boost::shared_ptr<ARDOUR::AudioRegion>
 273 AudioRegionView::audio_region() const
 274 {
 275         // "Guaranteed" to succeed...
 276         return boost::dynamic_pointer_cast<AudioRegion>(_region);
 277 }
 278
 279 void
 280 AudioRegionView::region_changed (const PropertyChange& what_changed)
 281 {
 282         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_changed, what_changed);
 283         // cerr << "AudioRegionView::region_changed() called" << endl;
 284
 285         RegionView::region_changed (what_changed);
 286
 287         if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
 288                 region_scale_amplitude_changed ();
 289         }
 290         if (what_changed.contains (ARDOUR::Properties::fade_in)) {
 291                 fade_in_changed ();
 292         }
 293         if (what_changed.contains (ARDOUR::Properties::fade_out)) {
 294                 fade_out_changed ();
 295         }
 296         if (what_changed.contains (ARDOUR::Properties::fade_in_active)) {
 297                 fade_in_active_changed ();
 298         }
 299         if (what_changed.contains (ARDOUR::Properties::fade_out_active)) {
 300                 fade_out_active_changed ();
 301         }
 302         if (what_changed.contains (ARDOUR::Properties::envelope_active)) {
 303                 envelope_active_changed ();
 304         }
 305         if (what_changed.contains (ARDOUR::Properties::valid_transients)) {
 306                 transients_changed ();
 307         }
 308 }
 309
 310 void
 311 AudioRegionView::fade_in_changed ()
 312 {
 313         reset_fade_in_shape ();
 314 }
 315
 316 void
 317 AudioRegionView::fade_out_changed ()
 318 {
 319         reset_fade_out_shape ();
 320 }
 321 void
 322 AudioRegionView::fade_in_active_changed ()
 323 {
 324 //      uint32_t r,g,b,a;
 325 //      uint32_t col;
 326 //      UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 327
 328         if (audio_region()->fade_in_active()) {
 329                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                          // FIXME make a themeable colour
 330                 fade_in_shape->property_width_pixels() = 1;
 331                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(180,180,180,190);                   // FIXME make a themeable colour
 332         } else {
 333                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                          // FIXME make a themeable colour
 334                 fade_in_shape->property_width_pixels() = 1;
 335                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(45,45,45,150);                      // FIXME make a themeable colour
 336         }
 337 }
 338
 339 void
 340 AudioRegionView::fade_out_active_changed ()
 341 {
 342 //      uint32_t r,g,b,a;
 343 //      uint32_t col;
 344 //      UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 345
 346         if (audio_region()->fade_out_active()) {
 347                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                         // FIXME make a themeable colour
 348                 fade_out_shape->property_width_pixels() = 1;
 349                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(180,180,180,200);                  // FIXME make a themeable colour
 350         } else {
 351                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                         // FIXME make a themeable colour
 352                 fade_out_shape->property_width_pixels() = 1;
 353                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(45,45,45,200);                     // FIXME make a themeable colour
 354         }
 355 }
 356
 357
 358 void
 359 AudioRegionView::region_scale_amplitude_changed ()
 360 {
 361         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
 362
 363         for (uint32_t n = 0; n < waves.size(); ++n) {
 364                 // force a reload of the cache
 365                 waves[n]->property_data_src() = _region.get();
 366         }
 367 }
 368
 369 void
 370 AudioRegionView::region_renamed ()
 371 {
 372         Glib::ustring str = RegionView::make_name ();
 373
 374         if (audio_region()->speed_mismatch (trackview.session()->frame_rate())) {
 375                 str = string ("*") + str;
 376         }
 377
 378         if (_region->muted()) {
 379                 str = string ("!") + str;
 380         }
 381
 382         set_item_name (str, this);
 383         set_name_text (str);
 384 }
 385
 386 void
 387 AudioRegionView::region_resized (const PropertyChange& what_changed)
 388 {
 389         AudioGhostRegion* agr;
 390
 391         RegionView::region_resized(what_changed);
 392         PropertyChange interesting_stuff;
 393
 394         interesting_stuff.add (ARDOUR::Properties::start);
 395         interesting_stuff.add (ARDOUR::Properties::length);
 396
 397         if (what_changed.contains (interesting_stuff)) {
 398
 399                 for (uint32_t n = 0; n < waves.size(); ++n) {
 400                         waves[n]->property_region_start() = _region->start();
 401                 }
 402
 403                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 404                         if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
 405
 406                                 for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
 407                                         (*w)->property_region_start() = _region->start();
 408                                 }
 409                         }
 410                 }
 411
 412                 /* hide transient lines that extend beyond the region end */
 413
 414                 list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 415
 416                 for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 417                         if ((*l).first > _region->length()- 1){
 418                           (*l).second->hide();
 419                         }
 420                         else {
 421                           (*l).second->show();
 422                         }
 423                 }
 424         }
 425 }
 426
 427 void
 428 AudioRegionView::reset_width_dependent_items (double pixel_width)
 429 {
 430         RegionView::reset_width_dependent_items(pixel_width);
 431         assert(_pixel_width == pixel_width);
 432
 433         if (zero_line) {
 434                 zero_line->property_x2() = pixel_width - 1.0;
 435         }
 436
 437         if (fade_in_handle) {
 438                 if (pixel_width <= 6.0) {
 439                         fade_in_handle->hide();
 440                         fade_out_handle->hide();
 441                 } else {
 442                         if (_height < 5.0) {
 443                                 fade_in_handle->hide();
 444                                 fade_out_handle->hide();
 445                         } else {
 446                                 if (trackview.session()->config.get_show_region_fades()) {
 447                                         fade_in_handle->show();
 448                                         fade_out_handle->show();
 449                                 }
 450                         }
 451                 }
 452         }
 453
 454         AnalysisFeatureList analysis_features = _region->transients();
 455         AnalysisFeatureList::const_iterator i;
 456         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 457
 458         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 459                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
 460                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
 461         }
 462
 463         reset_fade_shapes ();
 464 }
 465
 466 void
 467 AudioRegionView::region_muted ()
 468 {
 469         RegionView::region_muted();
 470
 471         for (uint32_t n=0; n < waves.size(); ++n) {
 472                 if (_region->muted()) {
 473                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 474                 } else {
 475                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 476                 }
 477         }
 478 }
 479
 480 void
 481 AudioRegionView::setup_fade_handle_positions()
 482 {
 483         /* position of fade handle offset from the top of the region view */
 484         double const handle_pos = 2;
 485         /* height of fade handles */
 486         double const handle_height = 5;
 487
 488         if (fade_in_handle) {
 489                 fade_in_handle->property_y1() = handle_pos;
 490                 fade_in_handle->property_y2() = handle_pos + handle_height;
 491         }
 492
 493         if (fade_out_handle) {
 494                 fade_out_handle->property_y1() = handle_pos;
 495                 fade_out_handle->property_y2() = handle_pos + handle_height;
 496         }
 497 }
 498
 499 void
 500 AudioRegionView::set_height (gdouble height)
 501 {
 502         RegionView::set_height (height);
 503
 504         uint32_t wcnt = waves.size();
 505
 506         for (uint32_t n = 0; n < wcnt; ++n) {
 507                 gdouble ht;
 508
 509                 if (height < NAME_HIGHLIGHT_THRESH) {
 510                         ht = ((height - 2 * wcnt) / (double) wcnt);
 511                 } else {
 512                         ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 513                 }
 514
 515                 gdouble yoff = n * (ht + 1);
 516
 517                 waves[n]->property_height() = ht;
 518                 waves[n]->property_y() = yoff + 2;
 519         }
 520
 521         if (gain_line) {
 522
 523                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 524                         gain_line->hide ();
 525                 } else {
 526                         if (_flags & EnvelopeVisible) {
 527                                 gain_line->show ();
 528                         }
 529                 }
 530
 531                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
 532         }
 533
 534         manage_zero_line ();
 535         reset_fade_shapes ();
 536
 537         /* Update hights for any active feature lines */
 538         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 539
 540         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 541                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 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 ((nframes_t) audio_region()->fade_in()->back()->when);
 577 }
 578
 579 void
 580 AudioRegionView::reset_fade_in_shape_width (nframes_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 ((nframes_t) 64, width);
 589
 590         Points* points;
 591         double pwidth = width / samples_per_unit;
 592         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 593         double h;
 594
 595         if (_height < 5) {
 596                 fade_in_shape->hide();
 597                 fade_in_handle->hide();
 598                 return;
 599         }
 600
 601         double handle_center;
 602         handle_center = pwidth;
 603
 604         if (handle_center > 7.0) {
 605                 handle_center -= 3.0;
 606         } else {
 607                 handle_center = 3.0;
 608         }
 609
 610         fade_in_handle->property_x1() =  handle_center - 3.0;
 611         fade_in_handle->property_x2() =  handle_center + 3.0;
 612
 613         if (pwidth < 5) {
 614                 fade_in_shape->hide();
 615                 return;
 616         }
 617
 618         if (trackview.session()->config.get_show_region_fades()) {
 619                 fade_in_shape->show();
 620         }
 621
 622         float curve[npoints];
 623         audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
 624
 625         points = get_canvas_points ("fade in shape", npoints + 3);
 626
 627         if (_height >= NAME_HIGHLIGHT_THRESH) {
 628                 h = _height - NAME_HIGHLIGHT_SIZE;
 629         } else {
 630                 h = _height;
 631         }
 632
 633         /* points *MUST* be in anti-clockwise order */
 634
 635         uint32_t pi, pc;
 636         double xdelta = pwidth/npoints;
 637
 638         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 639                 (*points)[pi].set_x(1 + (pc * xdelta));
 640                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 641         }
 642
 643         /* fold back */
 644
 645         (*points)[pi].set_x(pwidth);
 646         (*points)[pi++].set_y(2);
 647
 648         (*points)[pi].set_x(1);
 649         (*points)[pi++].set_y(2);
 650
 651         /* connect the dots ... */
 652
 653         (*points)[pi] = (*points)[0];
 654
 655         fade_in_shape->property_points() = *points;
 656         delete points;
 657
 658         /* ensure trim handle stays on top */
 659         if (frame_handle_start) {
 660                 frame_handle_start->raise_to_top();
 661         }
 662 }
 663
 664 void
 665 AudioRegionView::reset_fade_out_shape ()
 666 {
 667         reset_fade_out_shape_width ((nframes_t) audio_region()->fade_out()->back()->when);
 668 }
 669
 670 void
 671 AudioRegionView::reset_fade_out_shape_width (nframes_t width)
 672 {
 673         if (fade_out_handle == 0) {
 674                 return;
 675         }
 676
 677         /* smallest size for a fade is 64 frames */
 678
 679         width = std::max ((nframes_t) 64, width);
 680
 681         Points* points;
 682         double pwidth = width / samples_per_unit;
 683         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 684         double h;
 685
 686         if (_height < 5) {
 687                 fade_out_shape->hide();
 688                 fade_out_handle->hide();
 689                 return;
 690         }
 691
 692         double handle_center;
 693         handle_center = (_region->length() - width) / samples_per_unit;
 694
 695         if (handle_center > 7.0) {
 696                 handle_center -= 3.0;
 697         } else {
 698                 handle_center = 3.0;
 699         }
 700
 701         fade_out_handle->property_x1() =  handle_center - 3.0;
 702         fade_out_handle->property_x2() =  handle_center + 3.0;
 703
 704         /* don't show shape if its too small */
 705
 706         if (pwidth < 5) {
 707                 fade_out_shape->hide();
 708                 return;
 709         }
 710
 711         if (trackview.session()->config.get_show_region_fades()) {
 712                 fade_out_shape->show();
 713         }
 714
 715         float curve[npoints];
 716         audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
 717
 718         if (_height >= NAME_HIGHLIGHT_THRESH) {
 719                 h = _height - NAME_HIGHLIGHT_SIZE;
 720         } else {
 721                 h = _height;
 722         }
 723
 724         /* points *MUST* be in anti-clockwise order */
 725
 726         points = get_canvas_points ("fade out shape", npoints + 3);
 727
 728         uint32_t pi, pc;
 729         double xdelta = pwidth/npoints;
 730
 731         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 732                 (*points)[pi].set_x(_pixel_width - 1 - pwidth + (pc*xdelta));
 733                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 734         }
 735
 736         /* fold back */
 737
 738         (*points)[pi].set_x(_pixel_width);
 739         (*points)[pi++].set_y(h);
 740
 741         (*points)[pi].set_x(_pixel_width);
 742         (*points)[pi++].set_y(2);
 743
 744         /* connect the dots ... */
 745
 746         (*points)[pi] = (*points)[0];
 747
 748         fade_out_shape->property_points() = *points;
 749         delete points;
 750
 751         /* ensure trim handle stays on top */
 752         if (frame_handle_end) {
 753                 frame_handle_end->raise_to_top();
 754         }
 755 }
 756
 757 void
 758 AudioRegionView::set_samples_per_unit (gdouble spu)
 759 {
 760         RegionView::set_samples_per_unit (spu);
 761
 762         if (_flags & WaveformVisible) {
 763                 for (uint32_t n=0; n < waves.size(); ++n) {
 764                         waves[n]->property_samples_per_unit() = spu;
 765                 }
 766         }
 767
 768         if (gain_line) {
 769                 gain_line->reset ();
 770         }
 771
 772         reset_fade_shapes ();
 773 }
 774
 775 void
 776 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 777 {
 778         for (uint32_t n=0; n < waves.size(); ++n) {
 779                 waves[n]->property_amplitude_above_axis() = spp;
 780         }
 781 }
 782
 783 void
 784 AudioRegionView::compute_colors (Gdk::Color const & basic_color)
 785 {
 786         RegionView::compute_colors (basic_color);
 787
 788         uint32_t r, g, b, a;
 789
 790         /* gain color computed in envelope_active_changed() */
 791
 792         UINT_TO_RGBA (fill_color, &r, &g, &b, &a);
 793         fade_color = RGBA_TO_UINT(r,g,b,120);
 794 }
 795
 796 void
 797 AudioRegionView::set_colors ()
 798 {
 799         RegionView::set_colors();
 800
 801         if (gain_line) {
 802                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 803         }
 804
 805         for (uint32_t n=0; n < waves.size(); ++n) {
 806                 if (_region->muted()) {
 807                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 808                 } else {
 809                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 810                 }
 811
 812                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 813                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 814         }
 815 }
 816
 817 void
 818 AudioRegionView::set_waveform_visible (bool yn)
 819 {
 820         if (((_flags & WaveformVisible) != yn)) {
 821                 if (yn) {
 822                         for (uint32_t n=0; n < waves.size(); ++n) {
 823                                 /* make sure the zoom level is correct, since we don't update
 824                                    this when waveforms are hidden.
 825                                 */
 826                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 827                                 waves[n]->show();
 828                         }
 829                         _flags |= WaveformVisible;
 830                 } else {
 831                         for (uint32_t n=0; n < waves.size(); ++n) {
 832                                 waves[n]->hide();
 833                         }
 834                         _flags &= ~WaveformVisible;
 835                 }
 836                 store_flags ();
 837         }
 838 }
 839
 840 void
 841 AudioRegionView::temporarily_hide_envelope ()
 842 {
 843         if (gain_line) {
 844                 gain_line->hide ();
 845         }
 846 }
 847
 848 void
 849 AudioRegionView::unhide_envelope ()
 850 {
 851         if (gain_line && (_flags & EnvelopeVisible)) {
 852                 gain_line->show ();
 853         }
 854 }
 855
 856 void
 857 AudioRegionView::set_envelope_visible (bool yn)
 858 {
 859         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 860                 if (yn) {
 861                         gain_line->show ();
 862                         _flags |= EnvelopeVisible;
 863                 } else {
 864                         gain_line->hide ();
 865                         _flags &= ~EnvelopeVisible;
 866                 }
 867                 store_flags ();
 868         }
 869 }
 870
 871 void
 872 AudioRegionView::create_waves ()
 873 {
 874         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 875         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 876
 877         if (!atv.track()) {
 878                 return;
 879         }
 880
 881         ChanCount nchans = atv.track()->n_channels();
 882
 883         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
 884         //              << " and channels = " << nchans.n_audio() << endl;
 885
 886         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 887         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 888                 tmp_waves.push_back (0);
 889         }
 890
 891         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 892                 delete *i;
 893         }
 894
 895         _data_ready_connections.clear ();
 896
 897         for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
 898                 _data_ready_connections.push_back (0);
 899         }
 900
 901         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 902
 903                 if (n >= audio_region()->n_channels()) {
 904                         break;
 905                 }
 906
 907                 wave_caches.push_back (WaveView::create_cache ());
 908
 909                 // cerr << "\tchannel " << n << endl;
 910
 911                 if (wait_for_data) {
 912                         if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
 913                                 // cerr << "\tData is ready\n";
 914                                 create_one_wave (n, true);
 915                         } else {
 916                                 // cerr << "\tdata is not ready\n";
 917                                 // we'll get a PeaksReady signal from the source in the future
 918                                 // and will call create_one_wave(n) then.
 919                         }
 920
 921                 } else {
 922                         // cerr << "\tdon't delay, display today!\n";
 923                         create_one_wave (n, true);
 924                 }
 925
 926         }
 927 }
 928
 929 void
 930 AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 931 {
 932         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 933         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 934         uint32_t nchans = atv.track()->n_channels().n_audio();
 935         uint32_t n;
 936         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 937         gdouble ht;
 938
 939         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 940                 ht = ((trackview.current_height()) / (double) nchans);
 941         } else {
 942                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 943         }
 944
 945         gdouble yoff = which * ht;
 946
 947         WaveView *wave = new WaveView(*group);
 948
 949         wave->property_data_src() = (gpointer) _region.get();
 950         wave->property_cache() =  wave_caches[which];
 951         wave->property_cache_updater() = true;
 952         wave->property_channel() =  which;
 953         wave->property_length_function() = (gpointer) region_length_from_c;
 954         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 955         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 956         wave->property_x() =  0.0;
 957         wave->property_y() =  yoff;
 958         wave->property_height() =  (double) ht;
 959         wave->property_samples_per_unit() =  samples_per_unit;
 960         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 961
 962         if (_recregion) {
 963                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 964                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 965         } else {
 966                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 967                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 968         }
 969
 970         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 971         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 972         wave->property_region_start() = _region->start();
 973         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 974         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 975
 976         if (!(_flags & WaveformVisible)) {
 977                 wave->hide();
 978         }
 979
 980         /* note: calling this function is serialized by the lock
 981            held in the peak building thread that signals that
 982            peaks are ready for use *or* by the fact that it is
 983            called one by one from the GUI thread.
 984         */
 985
 986         if (which < nchans) {
 987                 tmp_waves[which] = wave;
 988         } else {
 989                 /* n-channel track, >n-channel source */
 990         }
 991
 992         /* see if we're all ready */
 993
 994         for (n = 0; n < nchans; ++n) {
 995                 if (tmp_waves[n] == 0) {
 996                         break;
 997                 }
 998         }
 999
1000         if (n == nwaves && waves.empty()) {
1001                 /* all waves are ready */
1002                 tmp_waves.resize(nwaves);
1003
1004                 waves = tmp_waves;
1005                 tmp_waves.clear ();
1006
1007                 /* all waves created, don't hook into peaks ready anymore */
1008                 delete _data_ready_connections[which];
1009                 _data_ready_connections[which] = 0;
1010
1011 #if 0
1012                 if (!zero_line) {
1013                         zero_line = new ArdourCanvas::SimpleLine (*group);
1014                         zero_line->property_x1() = (gdouble) 1.0;
1015                         zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
1016                         zero_line->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1017                         manage_zero_line ();
1018                 }
1019 #endif
1020         }
1021 }
1022
1023 void
1024 AudioRegionView::peaks_ready_handler (uint32_t which)
1025 {
1026         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
1027         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
1028 }
1029
1030 void
1031 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1032 {
1033         if (gain_line == 0) {
1034                 return;
1035         }
1036
1037         double x, y;
1038
1039         /* don't create points that can't be seen */
1040
1041         set_envelope_visible (true);
1042
1043         x = ev->button.x;
1044         y = ev->button.y;
1045
1046         item->w2i (x, y);
1047
1048         nframes_t fx = trackview.editor().pixel_to_frame (x);
1049
1050         if (fx > _region->length()) {
1051                 return;
1052         }
1053
1054         /* compute vertical fractional position */
1055
1056         y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
1057
1058         /* map using gain line */
1059
1060         gain_line->view_to_model_coord (x, y);
1061
1062         /* XXX STATEFUL: can't convert to stateful diff until we
1063            can represent automation data with it.
1064         */
1065
1066         trackview.session()->begin_reversible_command (_("add gain control point"));
1067         XMLNode &before = audio_region()->envelope()->get_state();
1068
1069         if (!audio_region()->envelope_active()) {
1070                 XMLNode &region_before = audio_region()->get_state();
1071                 audio_region()->set_envelope_active(true);
1072                 XMLNode &region_after = audio_region()->get_state();
1073                 trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
1074         }
1075
1076         audio_region()->envelope()->add (fx, y);
1077
1078         XMLNode &after = audio_region()->envelope()->get_state();
1079         trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
1080         trackview.session()->commit_reversible_command ();
1081 }
1082
1083 void
1084 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
1085 {
1086         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1087         audio_region()->envelope()->erase (cp->model());
1088 }
1089
1090 void
1091 AudioRegionView::store_flags()
1092 {
1093         XMLNode *node = new XMLNode ("GUI");
1094
1095         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1096         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1097         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1098         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1099
1100         _region->add_extra_xml (*node);
1101 }
1102
1103 void
1104 AudioRegionView::set_flags (XMLNode* node)
1105 {
1106         XMLProperty *prop;
1107
1108         if ((prop = node->property ("waveform-visible")) != 0) {
1109                 if (string_is_affirmative (prop->value())) {
1110                         _flags |= WaveformVisible;
1111                 }
1112         }
1113
1114         if ((prop = node->property ("envelope-visible")) != 0) {
1115                 if (string_is_affirmative (prop->value())) {
1116                         _flags |= EnvelopeVisible;
1117                 }
1118         }
1119
1120         if ((prop = node->property ("waveform-rectified")) != 0) {
1121                 if (string_is_affirmative (prop->value())) {
1122                         _flags |= WaveformRectified;
1123                 }
1124         }
1125
1126         if ((prop = node->property ("waveform-logscaled")) != 0) {
1127                 if (string_is_affirmative (prop->value())) {
1128                         _flags |= WaveformLogScaled;
1129                 }
1130         }
1131 }
1132
1133 void
1134 AudioRegionView::set_waveform_shape (WaveformShape shape)
1135 {
1136         bool yn;
1137
1138         /* this slightly odd approach is to leave the door open to
1139            other "shapes" such as spectral displays, etc.
1140         */
1141
1142         switch (shape) {
1143         case Rectified:
1144                 yn = true;
1145                 break;
1146
1147         default:
1148                 yn = false;
1149                 break;
1150         }
1151
1152         if (yn != (bool) (_flags & WaveformRectified)) {
1153                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1154                         (*wave)->property_rectified() = yn;
1155                 }
1156
1157                 if (zero_line) {
1158                         if (yn) {
1159                                 zero_line->hide();
1160                         } else {
1161                                 zero_line->show();
1162                         }
1163                 }
1164
1165                 if (yn) {
1166                         _flags |= WaveformRectified;
1167                 } else {
1168                         _flags &= ~WaveformRectified;
1169                 }
1170                 store_flags ();
1171         }
1172 }
1173
1174 void
1175 AudioRegionView::set_waveform_scale (WaveformScale scale)
1176 {
1177         bool yn = (scale == Logarithmic);
1178
1179         if (yn != (bool) (_flags & WaveformLogScaled)) {
1180                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1181                         (*wave)->property_logscaled() = yn;
1182                 }
1183
1184                 if (yn) {
1185                         _flags |= WaveformLogScaled;
1186                 } else {
1187                         _flags &= ~WaveformLogScaled;
1188                 }
1189                 store_flags ();
1190         }
1191 }
1192
1193
1194 GhostRegion*
1195 AudioRegionView::add_ghost (TimeAxisView& tv)
1196 {
1197         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1198         assert(rtv);
1199
1200         double unit_position = _region->position () / samples_per_unit;
1201         AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
1202         uint32_t nchans;
1203
1204         nchans = rtv->track()->n_channels().n_audio();
1205
1206         for (uint32_t n = 0; n < nchans; ++n) {
1207
1208                 if (n >= audio_region()->n_channels()) {
1209                         break;
1210                 }
1211
1212                 WaveView *wave = new WaveView(*ghost->group);
1213
1214                 wave->property_data_src() = _region.get();
1215                 wave->property_cache() =  wave_caches[n];
1216                 wave->property_cache_updater() = false;
1217                 wave->property_channel() = n;
1218                 wave->property_length_function() = (gpointer)region_length_from_c;
1219                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1220                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1221                 wave->property_x() =  0.0;
1222                 wave->property_samples_per_unit() =  samples_per_unit;
1223                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1224
1225                 wave->property_region_start() = _region->start();
1226
1227                 ghost->waves.push_back(wave);
1228         }
1229
1230         ghost->set_height ();
1231         ghost->set_duration (_region->length() / samples_per_unit);
1232         ghost->set_colors();
1233         ghosts.push_back (ghost);
1234
1235         return ghost;
1236 }
1237
1238 void
1239 AudioRegionView::entered (bool internal_editing)
1240 {
1241         if (gain_line && _flags & EnvelopeVisible) {
1242                 gain_line->show_all_control_points ();
1243         }
1244
1245         uint32_t r,g,b,a;
1246         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1247         a=255;
1248
1249         if (fade_in_handle && !internal_editing) {
1250                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1251                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1252         }
1253 }
1254
1255 void
1256 AudioRegionView::exited ()
1257 {
1258         if (gain_line) {
1259                 gain_line->hide_all_but_selected_control_points ();
1260         }
1261
1262         uint32_t r,g,b,a;
1263         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1264         a=0;
1265
1266         if (fade_in_handle) {
1267                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1268                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1269         }
1270 }
1271
1272 void
1273 AudioRegionView::envelope_active_changed ()
1274 {
1275         if (gain_line) {
1276                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1277         }
1278 }
1279
1280 void
1281 AudioRegionView::set_waveview_data_src()
1282 {
1283         AudioGhostRegion* agr;
1284         double unit_length= _region->length() / samples_per_unit;
1285
1286         for (uint32_t n = 0; n < waves.size(); ++n) {
1287                 // TODO: something else to let it know the channel
1288                 waves[n]->property_data_src() = _region.get();
1289         }
1290
1291         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1292
1293                 (*i)->set_duration (unit_length);
1294
1295                 if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
1296                         for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
1297                                 (*w)->property_data_src() = _region.get();
1298                         }
1299                 }
1300         }
1301
1302 }
1303
1304 void
1305 AudioRegionView::color_handler ()
1306 {
1307         //case cMutedWaveForm:
1308         //case cWaveForm:
1309         //case cWaveFormClip:
1310         //case cZeroLine:
1311         set_colors ();
1312
1313         //case cGainLineInactive:
1314         //case cGainLine:
1315         envelope_active_changed();
1316
1317 }
1318
1319 void
1320 AudioRegionView::set_frame_color ()
1321 {
1322         if (!frame) {
1323                 return;
1324         }
1325
1326         if (_region->opaque()) {
1327                 fill_opacity = 130;
1328         } else {
1329                 fill_opacity = 0;
1330         }
1331
1332         uint32_t r,g,b,a;
1333
1334         if (_selected && should_show_selection) {
1335                 UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get(), &r, &g, &b, &a);
1336                 frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1337
1338                 for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1339                         if (_region->muted()) {
1340                                 (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1341                         } else {
1342                                 (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1343                                 (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1344                         }
1345                 }
1346         } else {
1347                 if (_recregion) {
1348                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_RecordingRect.get(), &r, &g, &b, &a);
1349                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, a);
1350
1351                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1352                                 if (_region->muted()) {
1353                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1354                                 } else {
1355                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1356                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1357                                 }
1358                         }
1359                 } else {
1360                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_FrameBase.get(), &r, &g, &b, &a);
1361                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1362
1363                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1364                                 if (_region->muted()) {
1365                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1366                                 } else {
1367                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1368                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1369                                 }
1370                         }
1371                 }
1372         }
1373 }
1374
1375 void
1376 AudioRegionView::set_fade_visibility (bool yn)
1377 {
1378         if (yn) {
1379                 if (fade_in_shape) {
1380                         fade_in_shape->show();
1381                 }
1382                 if (fade_out_shape) {
1383                         fade_out_shape->show ();
1384                 }
1385                 if (fade_in_handle) {
1386                         fade_in_handle->show ();
1387                 }
1388                 if (fade_out_handle) {
1389                         fade_out_handle->show ();
1390                 }
1391         } else {
1392                 if (fade_in_shape) {
1393                         fade_in_shape->hide();
1394                 }
1395                 if (fade_out_shape) {
1396                         fade_out_shape->hide ();
1397                 }
1398                 if (fade_in_handle) {
1399                         fade_in_handle->hide ();
1400                 }
1401                 if (fade_out_handle) {
1402                         fade_out_handle->hide ();
1403                 }
1404         }
1405 }
1406
1407 void
1408 AudioRegionView::update_coverage_frames (LayerDisplay d)
1409 {
1410         RegionView::update_coverage_frames (d);
1411
1412         if (fade_in_handle) {
1413                 fade_in_handle->raise_to_top ();
1414                 fade_out_handle->raise_to_top ();
1415         }
1416 }
1417
1418 void
1419 AudioRegionView::show_region_editor ()
1420 {
1421         if (editor == 0) {
1422                 editor = new AudioRegionEditor (trackview.session(), audio_region());
1423         }
1424
1425         editor->present ();
1426         editor->show_all();
1427 }
1428
1429 void
1430 AudioRegionView::transients_changed ()
1431 {
1432         AnalysisFeatureList analysis_features = _region->transients();
1433
1434         while (feature_lines.size() < analysis_features.size()) {
1435                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*group);
1436                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1437                 feature_lines.push_back (make_pair(0, l));
1438         }
1439
1440         while (feature_lines.size() > analysis_features.size()) {
1441                 ArdourCanvas::SimpleLine *line = feature_lines.back().second;
1442                 feature_lines.pop_back ();
1443                 delete line;
1444         }
1445
1446         AnalysisFeatureList::const_iterator i;
1447         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1448
1449         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1450                 (*l).first = *i;
1451                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
1452                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
1453                 (*l).second->property_y1() = 2;
1454                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
1455                 (*l).second->set_data("regionview", this);
1456                 (*l).second->show ();
1457                 (*l).second->raise_to_top ();
1458
1459                 (*l).second->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), (*l).second, this));
1460         }
1461 }
1462
1463 void
1464 AudioRegionView::update_transient(float old_pos, float new_pos)
1465 {
1466         /* Find frame at old pos, calulate new frame then update region transients*/
1467         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1468
1469         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1470                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1471                 if (rint(new_pos) == rint((*l).second->property_x1())) {
1472
1473                     nframes64_t old_frame = (*l).first;
1474                     nframes64_t new_frame = trackview.editor().pixel_to_frame (new_pos);
1475
1476                     _region->update_transient (old_frame, new_frame);
1477
1478                     break;
1479                 }
1480         }
1481 }
1482
1483 void
1484 AudioRegionView::remove_transient(float pos)
1485 {
1486         /* Find frame at old pos, calulate new frame then update region transients*/
1487         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1488
1489         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1490                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1491                 if (rint(pos) == rint((*l).second->property_x1())) {
1492                     _region->remove_transient ((*l).first);
1493                     break;
1494                 }
1495         }
1496 }