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::Line*> >::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::Line*> >::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                         } else {
 417                                 l->second->show();
 418                         }
 419                 }
 420         }
 421 }
 422
 423 void
 424 AudioRegionView::reset_width_dependent_items (double pixel_width)
 425 {
 426         RegionView::reset_width_dependent_items(pixel_width);
 427         assert(_pixel_width == pixel_width);
 428
 429         if (zero_line) {
 430                 zero_line->property_x2() = pixel_width - 1.0;
 431         }
 432
 433         if (fade_in_handle) {
 434                 if (pixel_width <= 6.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
 435                         fade_in_handle->hide();
 436                         fade_out_handle->hide();
 437                 }
 438                 else {
 439                         fade_in_handle->show();
 440                         fade_out_handle->show();
 441                 }
 442         }
 443
 444         AnalysisFeatureList analysis_features = _region->transients();
 445         AnalysisFeatureList::const_iterator i;
 446
 447         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
 448
 449         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 450
 451                 float x_pos = trackview.editor().frame_to_pixel (*i);
 452
 453                 ArdourCanvas::Points points;
 454                 points.push_back(Gnome::Art::Point(x_pos, 2.0)); // first x-coord needs to be a non-normal value
 455                 points.push_back(Gnome::Art::Point(x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 456
 457                 (*l).first = *i;
 458                 (*l).second->property_points() = points;
 459         }
 460
 461         reset_fade_shapes ();
 462 }
 463
 464 void
 465 AudioRegionView::region_muted ()
 466 {
 467         RegionView::region_muted();
 468
 469         for (uint32_t n=0; n < waves.size(); ++n) {
 470                 if (_region->muted()) {
 471                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 472                 } else {
 473                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 474                 }
 475         }
 476 }
 477
 478 void
 479 AudioRegionView::setup_fade_handle_positions()
 480 {
 481         /* position of fade handle offset from the top of the region view */
 482         double const handle_pos = 2;
 483         /* height of fade handles */
 484         double const handle_height = 5;
 485
 486         if (fade_in_handle) {
 487                 fade_in_handle->property_y1() = handle_pos;
 488                 fade_in_handle->property_y2() = handle_pos + handle_height;
 489         }
 490
 491         if (fade_out_handle) {
 492                 fade_out_handle->property_y1() = handle_pos;
 493                 fade_out_handle->property_y2() = handle_pos + handle_height;
 494         }
 495 }
 496
 497 void
 498 AudioRegionView::set_height (gdouble height)
 499 {
 500         RegionView::set_height (height);
 501
 502         uint32_t wcnt = waves.size();
 503
 504         for (uint32_t n = 0; n < wcnt; ++n) {
 505                 gdouble ht;
 506
 507                 if (height < NAME_HIGHLIGHT_THRESH) {
 508                         ht = ((height - 2 * wcnt) / (double) wcnt);
 509                 } else {
 510                         ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 511                 }
 512
 513                 gdouble yoff = n * (ht + 1);
 514
 515                 waves[n]->property_height() = ht;
 516                 waves[n]->property_y() = yoff + 2;
 517         }
 518
 519         if (gain_line) {
 520
 521                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 522                         gain_line->hide ();
 523                 } else {
 524                         if (_flags & EnvelopeVisible) {
 525                                 gain_line->show ();
 526                         }
 527                 }
 528
 529                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
 530         }
 531
 532         manage_zero_line ();
 533         reset_fade_shapes ();
 534
 535         /* Update hights for any active feature lines */
 536         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
 537
 538         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 539
 540                 float pos_x = trackview.editor().frame_to_pixel((*l).first);
 541
 542                 ArdourCanvas::Points points;
 543
 544                 points.push_back(Gnome::Art::Point(pos_x, 2.0)); // first x-coord needs to be a non-normal value
 545                 points.push_back(Gnome::Art::Point(pos_x, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 546
 547                 (*l).second->property_points() = points;
 548         }
 549
 550         if (fade_position_line) {
 551
 552                 if (height < NAME_HIGHLIGHT_THRESH) {
 553                         fade_position_line->property_y2() = _height - 1;
 554                 }
 555                 else {
 556                         fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 557                 }
 558         }
 559
 560         if (name_pixbuf) {
 561                 name_pixbuf->raise_to_top();
 562         }
 563 }
 564
 565 void
 566 AudioRegionView::manage_zero_line ()
 567 {
 568         if (!zero_line) {
 569                 return;
 570         }
 571
 572         if (_height >= 100) {
 573                 double const wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
 574                 zero_line->property_y1() = wave_midpoint;
 575                 zero_line->property_y2() = wave_midpoint;
 576                 zero_line->show();
 577         } else {
 578                 zero_line->hide();
 579         }
 580 }
 581
 582 void
 583 AudioRegionView::reset_fade_shapes ()
 584 {
 585         reset_fade_in_shape ();
 586         reset_fade_out_shape ();
 587 }
 588
 589 void
 590 AudioRegionView::reset_fade_in_shape ()
 591 {
 592         reset_fade_in_shape_width ((framecnt_t) audio_region()->fade_in()->back()->when);
 593 }
 594
 595 void
 596 AudioRegionView::reset_fade_in_shape_width (framecnt_t width)
 597 {
 598         if (fade_in_handle == 0) {
 599                 return;
 600         }
 601
 602         /* smallest size for a fade is 64 frames */
 603
 604         width = std::max ((framecnt_t) 64, width);
 605
 606         Points* points;
 607
 608         /* round here to prevent little visual glitches with sub-pixel placement */
 609         double const pwidth = rint (width / samples_per_unit);
 610         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 611         double h;
 612
 613         if (_height < 5) {
 614                 fade_in_shape->hide();
 615                 fade_in_handle->hide();
 616                 return;
 617         }
 618
 619         double const handle_center = pwidth;
 620
 621         /* Put the fade in handle so that its left side is at the end-of-fade line */
 622         fade_in_handle->property_x1() = handle_center;
 623         fade_in_handle->property_x2() = handle_center + 6;
 624
 625         if (pwidth < 5) {
 626                 fade_in_shape->hide();
 627                 return;
 628         }
 629
 630         if (trackview.session()->config.get_show_region_fades()) {
 631                 fade_in_shape->show();
 632         }
 633
 634         float curve[npoints];
 635         audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
 636
 637         points = get_canvas_points ("fade in shape", npoints + 3);
 638
 639         if (_height >= NAME_HIGHLIGHT_THRESH) {
 640                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 641         } else {
 642                 h = _height;
 643         }
 644
 645         /* points *MUST* be in anti-clockwise order */
 646
 647         uint32_t pi, pc;
 648         double xdelta = pwidth/npoints;
 649
 650         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 651                 (*points)[pi].set_x(1 + (pc * xdelta));
 652                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 653         }
 654
 655         /* fold back */
 656
 657         (*points)[pi].set_x(pwidth);
 658         (*points)[pi++].set_y(2);
 659
 660         (*points)[pi].set_x(1);
 661         (*points)[pi++].set_y(2);
 662
 663         /* connect the dots ... */
 664
 665         (*points)[pi] = (*points)[0];
 666
 667         fade_in_shape->property_points() = *points;
 668         delete points;
 669
 670         /* ensure trim handle stays on top */
 671         if (frame_handle_start) {
 672                 frame_handle_start->raise_to_top();
 673         }
 674 }
 675
 676 void
 677 AudioRegionView::reset_fade_out_shape ()
 678 {
 679         reset_fade_out_shape_width ((framecnt_t) audio_region()->fade_out()->back()->when);
 680 }
 681
 682 void
 683 AudioRegionView::reset_fade_out_shape_width (framecnt_t width)
 684 {
 685         if (fade_out_handle == 0) {
 686                 return;
 687         }
 688
 689         /* smallest size for a fade is 64 frames */
 690
 691         width = std::max ((framecnt_t) 64, width);
 692
 693         Points* points;
 694
 695         /* round here to prevent little visual glitches with sub-pixel placement */
 696         double const pwidth = rint (width / samples_per_unit);
 697         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 698         double h;
 699
 700         if (_height < 5) {
 701                 fade_out_shape->hide();
 702                 fade_out_handle->hide();
 703                 return;
 704         }
 705
 706         double const handle_center = (_region->length() - width) / samples_per_unit;
 707
 708         /* Put the fade out handle so that its right side is at the end-of-fade line;
 709          * it's `one out' for precise pixel accuracy.
 710          */
 711         fade_out_handle->property_x1() = handle_center - 5;
 712         fade_out_handle->property_x2() = handle_center + 1;
 713
 714         /* don't show shape if its too small */
 715
 716         if (pwidth < 5) {
 717                 fade_out_shape->hide();
 718                 return;
 719         }
 720
 721         if (trackview.session()->config.get_show_region_fades()) {
 722                 fade_out_shape->show();
 723         }
 724
 725         float curve[npoints];
 726         audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
 727
 728         if (_height >= NAME_HIGHLIGHT_THRESH) {
 729                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 730         } else {
 731                 h = _height;
 732         }
 733
 734         /* points *MUST* be in anti-clockwise order */
 735
 736         points = get_canvas_points ("fade out shape", npoints + 3);
 737
 738         uint32_t pi, pc;
 739         double xdelta = pwidth/npoints;
 740
 741         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 742                 (*points)[pi].set_x(_pixel_width - pwidth + (pc * xdelta));
 743                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 744         }
 745
 746         /* fold back */
 747
 748         (*points)[pi].set_x(_pixel_width);
 749         (*points)[pi++].set_y(h);
 750
 751         (*points)[pi].set_x(_pixel_width);
 752         (*points)[pi++].set_y(2);
 753
 754         /* connect the dots ... */
 755
 756         (*points)[pi] = (*points)[0];
 757
 758         fade_out_shape->property_points() = *points;
 759         delete points;
 760
 761         /* ensure trim handle stays on top */
 762         if (frame_handle_end) {
 763                 frame_handle_end->raise_to_top();
 764         }
 765 }
 766
 767 void
 768 AudioRegionView::set_samples_per_unit (gdouble spu)
 769 {
 770         RegionView::set_samples_per_unit (spu);
 771
 772         if (_flags & WaveformVisible) {
 773                 for (uint32_t n=0; n < waves.size(); ++n) {
 774                         waves[n]->property_samples_per_unit() = spu;
 775                 }
 776         }
 777
 778         if (gain_line) {
 779                 gain_line->reset ();
 780         }
 781
 782         reset_fade_shapes ();
 783 }
 784
 785 void
 786 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 787 {
 788         for (uint32_t n=0; n < waves.size(); ++n) {
 789                 waves[n]->property_amplitude_above_axis() = spp;
 790         }
 791 }
 792
 793 void
 794 AudioRegionView::compute_colors (Gdk::Color const & basic_color)
 795 {
 796         RegionView::compute_colors (basic_color);
 797
 798         /* gain color computed in envelope_active_changed() */
 799
 800         fade_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 801 }
 802
 803 void
 804 AudioRegionView::set_colors ()
 805 {
 806         RegionView::set_colors();
 807
 808         if (gain_line) {
 809                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 810         }
 811
 812         for (uint32_t n=0; n < waves.size(); ++n) {
 813                 if (_region->muted()) {
 814                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 815                 } else {
 816                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 817                 }
 818
 819                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 820                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 821         }
 822 }
 823
 824 void
 825 AudioRegionView::set_waveform_visible (bool yn)
 826 {
 827         if (((_flags & WaveformVisible) != yn)) {
 828                 if (yn) {
 829                         for (uint32_t n=0; n < waves.size(); ++n) {
 830                                 /* make sure the zoom level is correct, since we don't update
 831                                    this when waveforms are hidden.
 832                                 */
 833                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 834                                 waves[n]->show();
 835                         }
 836                         _flags |= WaveformVisible;
 837                 } else {
 838                         for (uint32_t n=0; n < waves.size(); ++n) {
 839                                 waves[n]->hide();
 840                         }
 841                         _flags &= ~WaveformVisible;
 842                 }
 843                 store_flags ();
 844         }
 845 }
 846
 847 void
 848 AudioRegionView::temporarily_hide_envelope ()
 849 {
 850         if (gain_line) {
 851                 gain_line->hide ();
 852         }
 853 }
 854
 855 void
 856 AudioRegionView::unhide_envelope ()
 857 {
 858         if (gain_line && (_flags & EnvelopeVisible)) {
 859                 gain_line->show ();
 860         }
 861 }
 862
 863 void
 864 AudioRegionView::set_envelope_visible (bool yn)
 865 {
 866         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 867                 if (yn) {
 868                         gain_line->show ();
 869                         _flags |= EnvelopeVisible;
 870                 } else {
 871                         gain_line->hide ();
 872                         _flags &= ~EnvelopeVisible;
 873                 }
 874                 store_flags ();
 875         }
 876 }
 877
 878 void
 879 AudioRegionView::create_waves ()
 880 {
 881         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 882         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 883
 884         if (!atv.track()) {
 885                 return;
 886         }
 887
 888         ChanCount nchans = atv.track()->n_channels();
 889
 890         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
 891         //              << " and channels = " << nchans.n_audio() << endl;
 892
 893         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 894         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 895                 tmp_waves.push_back (0);
 896         }
 897
 898         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 899                 delete *i;
 900         }
 901
 902         _data_ready_connections.clear ();
 903
 904         for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
 905                 _data_ready_connections.push_back (0);
 906         }
 907
 908         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 909
 910                 if (n >= audio_region()->n_channels()) {
 911                         break;
 912                 }
 913
 914                 wave_caches.push_back (WaveView::create_cache ());
 915
 916                 // cerr << "\tchannel " << n << endl;
 917
 918                 if (wait_for_data) {
 919                         if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
 920                                 // cerr << "\tData is ready\n";
 921                                 create_one_wave (n, true);
 922                         } else {
 923                                 // cerr << "\tdata is not ready\n";
 924                                 // we'll get a PeaksReady signal from the source in the future
 925                                 // and will call create_one_wave(n) then.
 926                         }
 927
 928                 } else {
 929                         // cerr << "\tdon't delay, display today!\n";
 930                         create_one_wave (n, true);
 931                 }
 932
 933         }
 934 }
 935
 936 void
 937 AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 938 {
 939         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 940         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 941         uint32_t nchans = atv.track()->n_channels().n_audio();
 942         uint32_t n;
 943         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 944         gdouble ht;
 945
 946         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 947                 ht = ((trackview.current_height()) / (double) nchans);
 948         } else {
 949                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 950         }
 951
 952         gdouble yoff = which * ht;
 953
 954         WaveView *wave = new WaveView(*group);
 955
 956         wave->property_data_src() = (gpointer) _region.get();
 957         wave->property_cache() =  wave_caches[which];
 958         wave->property_cache_updater() = true;
 959         wave->property_channel() =  which;
 960         wave->property_length_function() = (gpointer) region_length_from_c;
 961         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 962         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 963         wave->property_x() =  0.0;
 964         wave->property_y() =  yoff;
 965         wave->property_height() =  (double) ht;
 966         wave->property_samples_per_unit() =  samples_per_unit;
 967         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 968
 969         if (_recregion) {
 970                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 971                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 972         } else {
 973                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 974                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 975         }
 976
 977         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 978         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 979         wave->property_region_start() = _region->start();
 980         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 981         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 982
 983         if (!(_flags & WaveformVisible)) {
 984                 wave->hide();
 985         }
 986
 987         /* note: calling this function is serialized by the lock
 988            held in the peak building thread that signals that
 989            peaks are ready for use *or* by the fact that it is
 990            called one by one from the GUI thread.
 991         */
 992
 993         if (which < nchans) {
 994                 tmp_waves[which] = wave;
 995         } else {
 996                 /* n-channel track, >n-channel source */
 997         }
 998
 999         /* see if we're all ready */
1000
1001         for (n = 0; n < nchans; ++n) {
1002                 if (tmp_waves[n] == 0) {
1003                         break;
1004                 }
1005         }
1006
1007         if (n == nwaves && waves.empty()) {
1008                 /* all waves are ready */
1009                 tmp_waves.resize(nwaves);
1010
1011                 waves = tmp_waves;
1012                 tmp_waves.clear ();
1013
1014                 /* all waves created, don't hook into peaks ready anymore */
1015                 delete _data_ready_connections[which];
1016                 _data_ready_connections[which] = 0;
1017
1018 #if 0
1019                 if (!zero_line) {
1020                         zero_line = new ArdourCanvas::SimpleLine (*group);
1021                         zero_line->property_x1() = (gdouble) 1.0;
1022                         zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
1023                         zero_line->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1024                         manage_zero_line ();
1025                 }
1026 #endif
1027         }
1028 }
1029
1030 void
1031 AudioRegionView::peaks_ready_handler (uint32_t which)
1032 {
1033         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
1034         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
1035 }
1036
1037 void
1038 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1039 {
1040         if (gain_line == 0) {
1041                 return;
1042         }
1043
1044         double x, y;
1045
1046         /* don't create points that can't be seen */
1047
1048         set_envelope_visible (true);
1049
1050         x = ev->button.x;
1051         y = ev->button.y;
1052
1053         item->w2i (x, y);
1054
1055         framepos_t fx = trackview.editor().pixel_to_frame (x);
1056
1057         if (fx > _region->length()) {
1058                 return;
1059         }
1060
1061         /* compute vertical fractional position */
1062
1063         y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
1064
1065         /* map using gain line */
1066
1067         gain_line->view_to_model_coord (x, y);
1068
1069         /* XXX STATEFUL: can't convert to stateful diff until we
1070            can represent automation data with it.
1071         */
1072
1073         trackview.session()->begin_reversible_command (_("add gain control point"));
1074         XMLNode &before = audio_region()->envelope()->get_state();
1075
1076         if (!audio_region()->envelope_active()) {
1077                 XMLNode &region_before = audio_region()->get_state();
1078                 audio_region()->set_envelope_active(true);
1079                 XMLNode &region_after = audio_region()->get_state();
1080                 trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
1081         }
1082
1083         audio_region()->envelope()->add (fx, y);
1084
1085         XMLNode &after = audio_region()->envelope()->get_state();
1086         trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
1087         trackview.session()->commit_reversible_command ();
1088 }
1089
1090 void
1091 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
1092 {
1093         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1094         audio_region()->envelope()->erase (cp->model());
1095 }
1096
1097 void
1098 AudioRegionView::store_flags()
1099 {
1100         XMLNode *node = new XMLNode ("GUI");
1101
1102         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1103         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1104         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1105         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1106
1107         _region->add_extra_xml (*node);
1108 }
1109
1110 void
1111 AudioRegionView::set_flags (XMLNode* node)
1112 {
1113         XMLProperty *prop;
1114
1115         if ((prop = node->property ("waveform-visible")) != 0) {
1116                 if (string_is_affirmative (prop->value())) {
1117                         _flags |= WaveformVisible;
1118                 }
1119         }
1120
1121         if ((prop = node->property ("envelope-visible")) != 0) {
1122                 if (string_is_affirmative (prop->value())) {
1123                         _flags |= EnvelopeVisible;
1124                 }
1125         }
1126
1127         if ((prop = node->property ("waveform-rectified")) != 0) {
1128                 if (string_is_affirmative (prop->value())) {
1129                         _flags |= WaveformRectified;
1130                 }
1131         }
1132
1133         if ((prop = node->property ("waveform-logscaled")) != 0) {
1134                 if (string_is_affirmative (prop->value())) {
1135                         _flags |= WaveformLogScaled;
1136                 }
1137         }
1138 }
1139
1140 void
1141 AudioRegionView::set_waveform_shape (WaveformShape shape)
1142 {
1143         bool yn;
1144
1145         /* this slightly odd approach is to leave the door open to
1146            other "shapes" such as spectral displays, etc.
1147         */
1148
1149         switch (shape) {
1150         case Rectified:
1151                 yn = true;
1152                 break;
1153
1154         default:
1155                 yn = false;
1156                 break;
1157         }
1158
1159         if (yn != (bool) (_flags & WaveformRectified)) {
1160                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1161                         (*wave)->property_rectified() = yn;
1162                 }
1163
1164                 if (zero_line) {
1165                         if (yn) {
1166                                 zero_line->hide();
1167                         } else {
1168                                 zero_line->show();
1169                         }
1170                 }
1171
1172                 if (yn) {
1173                         _flags |= WaveformRectified;
1174                 } else {
1175                         _flags &= ~WaveformRectified;
1176                 }
1177                 store_flags ();
1178         }
1179 }
1180
1181 void
1182 AudioRegionView::set_waveform_scale (WaveformScale scale)
1183 {
1184         bool yn = (scale == Logarithmic);
1185
1186         if (yn != (bool) (_flags & WaveformLogScaled)) {
1187                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1188                         (*wave)->property_logscaled() = yn;
1189                 }
1190
1191                 if (yn) {
1192                         _flags |= WaveformLogScaled;
1193                 } else {
1194                         _flags &= ~WaveformLogScaled;
1195                 }
1196                 store_flags ();
1197         }
1198 }
1199
1200
1201 GhostRegion*
1202 AudioRegionView::add_ghost (TimeAxisView& tv)
1203 {
1204         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1205         assert(rtv);
1206
1207         double unit_position = _region->position () / samples_per_unit;
1208         AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
1209         uint32_t nchans;
1210
1211         nchans = rtv->track()->n_channels().n_audio();
1212
1213         for (uint32_t n = 0; n < nchans; ++n) {
1214
1215                 if (n >= audio_region()->n_channels()) {
1216                         break;
1217                 }
1218
1219                 WaveView *wave = new WaveView(*ghost->group);
1220
1221                 wave->property_data_src() = _region.get();
1222                 wave->property_cache() =  wave_caches[n];
1223                 wave->property_cache_updater() = false;
1224                 wave->property_channel() = n;
1225                 wave->property_length_function() = (gpointer)region_length_from_c;
1226                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1227                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1228                 wave->property_x() =  0.0;
1229                 wave->property_samples_per_unit() =  samples_per_unit;
1230                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1231
1232                 wave->property_region_start() = _region->start();
1233
1234                 ghost->waves.push_back(wave);
1235         }
1236
1237         ghost->set_height ();
1238         ghost->set_duration (_region->length() / samples_per_unit);
1239         ghost->set_colors();
1240         ghosts.push_back (ghost);
1241
1242         return ghost;
1243 }
1244
1245 void
1246 AudioRegionView::entered (bool internal_editing)
1247 {
1248         trackview.editor().set_current_trimmable (_region);
1249         trackview.editor().set_current_movable (_region);
1250
1251         if (gain_line && _flags & EnvelopeVisible) {
1252                 gain_line->show_all_control_points ();
1253         }
1254
1255         if (fade_in_handle && !internal_editing) {
1256                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1257                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1258         }
1259 }
1260
1261 void
1262 AudioRegionView::exited ()
1263 {
1264         trackview.editor().set_current_trimmable (boost::shared_ptr<Trimmable>());
1265         trackview.editor().set_current_movable (boost::shared_ptr<Movable>());
1266
1267         if (gain_line) {
1268                 gain_line->hide_all_but_selected_control_points ();
1269         }
1270
1271         if (fade_in_handle) {
1272                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1273                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1274         }
1275 }
1276
1277 void
1278 AudioRegionView::envelope_active_changed ()
1279 {
1280         if (gain_line) {
1281                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1282         }
1283 }
1284
1285 void
1286 AudioRegionView::set_waveview_data_src()
1287 {
1288         AudioGhostRegion* agr;
1289         double unit_length= _region->length() / samples_per_unit;
1290
1291         for (uint32_t n = 0; n < waves.size(); ++n) {
1292                 // TODO: something else to let it know the channel
1293                 waves[n]->property_data_src() = _region.get();
1294         }
1295
1296         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1297
1298                 (*i)->set_duration (unit_length);
1299
1300                 if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
1301                         for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
1302                                 (*w)->property_data_src() = _region.get();
1303                         }
1304                 }
1305         }
1306
1307 }
1308
1309 void
1310 AudioRegionView::color_handler ()
1311 {
1312         //case cMutedWaveForm:
1313         //case cWaveForm:
1314         //case cWaveFormClip:
1315         //case cZeroLine:
1316         set_colors ();
1317
1318         //case cGainLineInactive:
1319         //case cGainLine:
1320         envelope_active_changed();
1321
1322 }
1323
1324 void
1325 AudioRegionView::set_frame_color ()
1326 {
1327         if (!frame) {
1328                 return;
1329         }
1330
1331         if (_region->opaque()) {
1332                 fill_opacity = 130;
1333         } else {
1334                 fill_opacity = 0;
1335         }
1336
1337         TimeAxisViewItem::set_frame_color ();
1338
1339         if (_selected) {
1340                 for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1341                         if (_region->muted()) {
1342                                 (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1343                         } else {
1344                                 (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1345                                 (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1346                         }
1347                 }
1348         } else {
1349                 if (_recregion) {
1350                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1351                                 if (_region->muted()) {
1352                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1353                                 } else {
1354                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1355                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1356                                 }
1357                         }
1358                 } else {
1359                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1360                                 if (_region->muted()) {
1361                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1362                                 } else {
1363                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1364                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1365                                 }
1366                         }
1367                 }
1368         }
1369 }
1370
1371 void
1372 AudioRegionView::set_fade_visibility (bool yn)
1373 {
1374         if (yn) {
1375                 if (fade_in_shape) {
1376                         fade_in_shape->show();
1377                 }
1378                 if (fade_out_shape) {
1379                         fade_out_shape->show ();
1380                 }
1381                 if (fade_in_handle) {
1382                         fade_in_handle->show ();
1383                 }
1384                 if (fade_out_handle) {
1385                         fade_out_handle->show ();
1386                 }
1387         } else {
1388                 if (fade_in_shape) {
1389                         fade_in_shape->hide();
1390                 }
1391                 if (fade_out_shape) {
1392                         fade_out_shape->hide ();
1393                 }
1394                 if (fade_in_handle) {
1395                         fade_in_handle->hide ();
1396                 }
1397                 if (fade_out_handle) {
1398                         fade_out_handle->hide ();
1399                 }
1400         }
1401 }
1402
1403 void
1404 AudioRegionView::update_coverage_frames (LayerDisplay d)
1405 {
1406         RegionView::update_coverage_frames (d);
1407
1408         if (fade_in_handle) {
1409                 fade_in_handle->raise_to_top ();
1410                 fade_out_handle->raise_to_top ();
1411         }
1412 }
1413
1414 void
1415 AudioRegionView::show_region_editor ()
1416 {
1417         if (editor == 0) {
1418                 editor = new AudioRegionEditor (trackview.session(), audio_region());
1419         }
1420
1421         editor->present ();
1422         editor->set_position (Gtk::WIN_POS_MOUSE);
1423         editor->show_all();
1424 }
1425
1426
1427 void
1428 AudioRegionView::show_fade_line (framepos_t pos)
1429 {
1430         fade_position_line->property_x1() = trackview.editor().frame_to_pixel (pos);
1431         fade_position_line->property_x2() = trackview.editor().frame_to_pixel (pos);
1432         fade_position_line->show ();
1433         fade_position_line->raise_to_top ();
1434 }
1435
1436 void
1437 AudioRegionView::hide_fade_line ()
1438 {
1439         fade_position_line->hide ();
1440 }
1441
1442
1443 void
1444 AudioRegionView::transients_changed ()
1445 {
1446         AnalysisFeatureList analysis_features = _region->transients();
1447
1448         while (feature_lines.size() < analysis_features.size()) {
1449
1450                 ArdourCanvas::Line* canvas_item = new ArdourCanvas::Line(*group);
1451
1452                 ArdourCanvas::Points points;
1453
1454                 points.push_back(Gnome::Art::Point(-1.0, 2.0)); // first x-coord needs to be a non-normal value
1455                 points.push_back(Gnome::Art::Point(1.0, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
1456
1457                 canvas_item->property_points() = points;
1458                 canvas_item->property_width_pixels() = 1;
1459                 canvas_item->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1460                 canvas_item->property_first_arrowhead() = TRUE;
1461                 canvas_item->property_last_arrowhead() = TRUE;
1462                 canvas_item->property_arrow_shape_a() = 11.0;
1463                 canvas_item->property_arrow_shape_b() = 0.0;
1464                 canvas_item->property_arrow_shape_c() = 4.0;
1465
1466                 canvas_item->raise_to_top ();
1467                 canvas_item->show ();
1468
1469                 canvas_item->set_data ("regionview", this);
1470                 canvas_item->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), canvas_item, this));
1471
1472                 feature_lines.push_back (make_pair(0, canvas_item));
1473         }
1474
1475         while (feature_lines.size() > analysis_features.size()) {
1476                 ArdourCanvas::Line* line = feature_lines.back().second;
1477                 feature_lines.pop_back ();
1478                 delete line;
1479         }
1480
1481         AnalysisFeatureList::const_iterator i;
1482         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1483
1484         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1485
1486                 ArdourCanvas::Points points;
1487
1488                 float *pos = new float;
1489                 *pos = trackview.editor().frame_to_pixel (*i);
1490
1491                 points.push_back(Gnome::Art::Point(*pos, 2.0)); // first x-coord needs to be a non-normal value
1492                 points.push_back(Gnome::Art::Point(*pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
1493
1494                 (*l).second->property_points() = points;
1495                 (*l).second->set_data ("position", pos);
1496
1497                 (*l).first = *i;
1498         }
1499 }
1500
1501 void
1502 AudioRegionView::update_transient(float /*old_pos*/, float new_pos)
1503 {
1504         /* Find frame at old pos, calulate new frame then update region transients*/
1505         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1506
1507         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1508
1509                 /* Line has been updated in drag so we compare to new_pos */
1510
1511                 float* pos = (float*) (*l).second->get_data ("position");
1512
1513                 if (rint(new_pos) == rint(*pos)) {
1514
1515                     framepos_t old_frame = (*l).first;
1516                     framepos_t new_frame = trackview.editor().pixel_to_frame (new_pos);
1517
1518                     _region->update_transient (old_frame, new_frame);
1519
1520                     break;
1521                 }
1522         }
1523 }
1524
1525 void
1526 AudioRegionView::remove_transient(float pos)
1527 {
1528         /* Find frame at old pos, calulate new frame then update region transients*/
1529         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1530
1531         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1532
1533                 /* Line has been updated in drag so we compare to new_pos */
1534                 float *line_pos = (float*) (*l).second->get_data ("position");
1535
1536                 if (rint(pos) == rint(*line_pos)) {
1537                     _region->remove_transient ((*l).first);
1538                     break;
1539                 }
1540         }
1541 }
1542
1543 void
1544 AudioRegionView::thaw_after_trim ()
1545 {
1546         RegionView::thaw_after_trim ();
1547
1548         unhide_envelope ();
1549 }