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         {
 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         fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 235         fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 236         fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 237
 238         set_colors ();
 239
 240         /* XXX sync mark drag? */
 241 }
 242
 243 AudioRegionView::~AudioRegionView ()
 244 {
 245         in_destructor = true;
 246
 247         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 248
 249         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 250                 gnome_canvas_waveview_cache_destroy (*cache);
 251         }
 252
 253         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 254                 delete *i;
 255         }
 256
 257         for (list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 258                 delete ((*i).second);
 259         }
 260
 261         /* all waveviews etc will be destroyed when the group is destroyed */
 262
 263         delete gain_line;
 264 }
 265
 266 boost::shared_ptr<ARDOUR::AudioRegion>
 267 AudioRegionView::audio_region() const
 268 {
 269         // "Guaranteed" to succeed...
 270         return boost::dynamic_pointer_cast<AudioRegion>(_region);
 271 }
 272
 273 void
 274 AudioRegionView::region_changed (const PropertyChange& what_changed)
 275 {
 276         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_changed, what_changed);
 277         // cerr << "AudioRegionView::region_changed() called" << endl;
 278
 279         RegionView::region_changed (what_changed);
 280
 281         if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
 282                 region_scale_amplitude_changed ();
 283         }
 284         if (what_changed.contains (ARDOUR::Properties::fade_in)) {
 285                 fade_in_changed ();
 286         }
 287         if (what_changed.contains (ARDOUR::Properties::fade_out)) {
 288                 fade_out_changed ();
 289         }
 290         if (what_changed.contains (ARDOUR::Properties::fade_in_active)) {
 291                 fade_in_active_changed ();
 292         }
 293         if (what_changed.contains (ARDOUR::Properties::fade_out_active)) {
 294                 fade_out_active_changed ();
 295         }
 296         if (what_changed.contains (ARDOUR::Properties::envelope_active)) {
 297                 envelope_active_changed ();
 298         }
 299         if (what_changed.contains (ARDOUR::Properties::valid_transients)) {
 300                 transients_changed ();
 301         }
 302 }
 303
 304 void
 305 AudioRegionView::fade_in_changed ()
 306 {
 307         reset_fade_in_shape ();
 308 }
 309
 310 void
 311 AudioRegionView::fade_out_changed ()
 312 {
 313         reset_fade_out_shape ();
 314 }
 315 void
 316 AudioRegionView::fade_in_active_changed ()
 317 {
 318 //      uint32_t r,g,b,a;
 319 //      uint32_t col;
 320 //      UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 321
 322         if (audio_region()->fade_in_active()) {
 323                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                          // FIXME make a themeable colour
 324                 fade_in_shape->property_width_pixels() = 1;
 325                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(180,180,180,190);                   // FIXME make a themeable colour
 326         } else {
 327                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                          // FIXME make a themeable colour
 328                 fade_in_shape->property_width_pixels() = 1;
 329                 fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(45,45,45,150);                      // FIXME make a themeable colour
 330         }
 331 }
 332
 333 void
 334 AudioRegionView::fade_out_active_changed ()
 335 {
 336 //      uint32_t r,g,b,a;
 337 //      uint32_t col;
 338 //      UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
 339
 340         if (audio_region()->fade_out_active()) {
 341                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                         // FIXME make a themeable colour
 342                 fade_out_shape->property_width_pixels() = 1;
 343                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(180,180,180,200);                  // FIXME make a themeable colour
 344         } else {
 345                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                         // FIXME make a themeable colour
 346                 fade_out_shape->property_width_pixels() = 1;
 347                 fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(45,45,45,200);                     // FIXME make a themeable colour
 348         }
 349 }
 350
 351
 352 void
 353 AudioRegionView::region_scale_amplitude_changed ()
 354 {
 355         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
 356
 357         for (uint32_t n = 0; n < waves.size(); ++n) {
 358                 // force a reload of the cache
 359                 waves[n]->property_data_src() = _region.get();
 360         }
 361 }
 362
 363 void
 364 AudioRegionView::region_renamed ()
 365 {
 366         Glib::ustring str = RegionView::make_name ();
 367
 368         if (audio_region()->speed_mismatch (trackview.session()->frame_rate())) {
 369                 str = string ("*") + str;
 370         }
 371
 372         if (_region->muted()) {
 373                 str = string ("!") + str;
 374         }
 375
 376         set_item_name (str, this);
 377         set_name_text (str);
 378 }
 379
 380 void
 381 AudioRegionView::region_resized (const PropertyChange& what_changed)
 382 {
 383         AudioGhostRegion* agr;
 384
 385         RegionView::region_resized(what_changed);
 386         PropertyChange interesting_stuff;
 387
 388         interesting_stuff.add (ARDOUR::Properties::start);
 389         interesting_stuff.add (ARDOUR::Properties::length);
 390
 391         if (what_changed.contains (interesting_stuff)) {
 392
 393                 for (uint32_t n = 0; n < waves.size(); ++n) {
 394                         waves[n]->property_region_start() = _region->start();
 395                 }
 396
 397                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 398                         if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
 399
 400                                 for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
 401                                         (*w)->property_region_start() = _region->start();
 402                                 }
 403                         }
 404                 }
 405
 406                 /* hide transient lines that extend beyond the region end */
 407
 408                 list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 409
 410                 for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 411                         if ((*l).first > _region->length()- 1){
 412                           (*l).second->hide();
 413                         }
 414                         else {
 415                           (*l).second->show();
 416                         }
 417                 }
 418         }
 419 }
 420
 421 void
 422 AudioRegionView::reset_width_dependent_items (double pixel_width)
 423 {
 424         RegionView::reset_width_dependent_items(pixel_width);
 425         assert(_pixel_width == pixel_width);
 426
 427         if (zero_line) {
 428                 zero_line->property_x2() = pixel_width - 1.0;
 429         }
 430
 431         if (fade_in_handle) {
 432                 if (pixel_width <= 6.0) {
 433                         fade_in_handle->hide();
 434                         fade_out_handle->hide();
 435                 } else {
 436                         if (_height < 5.0) {
 437                                 fade_in_handle->hide();
 438                                 fade_out_handle->hide();
 439                         } else {
 440                                 if (trackview.session()->config.get_show_region_fades()) {
 441                                         fade_in_handle->show();
 442                                         fade_out_handle->show();
 443                                 }
 444                         }
 445                 }
 446         }
 447
 448         AnalysisFeatureList analysis_features = _region->transients();
 449         AnalysisFeatureList::const_iterator i;
 450         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 451
 452         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 453                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
 454                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
 455         }
 456
 457         reset_fade_shapes ();
 458 }
 459
 460 void
 461 AudioRegionView::region_muted ()
 462 {
 463         RegionView::region_muted();
 464
 465         for (uint32_t n=0; n < waves.size(); ++n) {
 466                 if (_region->muted()) {
 467                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 468                 } else {
 469                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 470                 }
 471         }
 472 }
 473
 474 void
 475 AudioRegionView::setup_fade_handle_positions()
 476 {
 477         /* position of fade handle offset from the top of the region view */
 478         double const handle_pos = 2;
 479         /* height of fade handles */
 480         double const handle_height = 5;
 481
 482         if (fade_in_handle) {
 483                 fade_in_handle->property_y1() = handle_pos;
 484                 fade_in_handle->property_y2() = handle_pos + handle_height;
 485         }
 486
 487         if (fade_out_handle) {
 488                 fade_out_handle->property_y1() = handle_pos;
 489                 fade_out_handle->property_y2() = handle_pos + handle_height;
 490         }
 491 }
 492
 493 void
 494 AudioRegionView::set_height (gdouble height)
 495 {
 496         RegionView::set_height (height);
 497
 498         uint32_t wcnt = waves.size();
 499
 500         // FIXME: ick
 501         height -= 2;
 502
 503         for (uint32_t n = 0; n < wcnt; ++n) {
 504                 gdouble ht;
 505
 506                 if ((height) < NAME_HIGHLIGHT_THRESH) {
 507                         ht = ((height - 2 * wcnt) / (double) wcnt);
 508                 } else {
 509                         ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 510                 }
 511
 512                 gdouble yoff = n * (ht + 1);
 513
 514                 waves[n]->property_height() = ht;
 515                 waves[n]->property_y() = yoff + 2;
 516         }
 517
 518         if (gain_line) {
 519
 520                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 521                         gain_line->hide ();
 522                 } else {
 523                         if (_flags & EnvelopeVisible) {
 524                                 gain_line->show ();
 525                         }
 526                 }
 527
 528                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
 529         }
 530
 531         manage_zero_line ();
 532         reset_fade_shapes ();
 533
 534         /* Update hights for any active feature lines */
 535         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
 536
 537         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 538                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 539         }
 540
 541         if (name_pixbuf) {
 542                 name_pixbuf->raise_to_top();
 543         }
 544 }
 545
 546 void
 547 AudioRegionView::manage_zero_line ()
 548 {
 549         if (!zero_line) {
 550                 return;
 551         }
 552
 553         if (_height >= 100) {
 554                 double const wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0;
 555                 zero_line->property_y1() = wave_midpoint;
 556                 zero_line->property_y2() = wave_midpoint;
 557                 zero_line->show();
 558         } else {
 559                 zero_line->hide();
 560         }
 561 }
 562
 563 void
 564 AudioRegionView::reset_fade_shapes ()
 565 {
 566         reset_fade_in_shape ();
 567         reset_fade_out_shape ();
 568 }
 569
 570 void
 571 AudioRegionView::reset_fade_in_shape ()
 572 {
 573         reset_fade_in_shape_width ((nframes_t) audio_region()->fade_in()->back()->when);
 574 }
 575
 576 void
 577 AudioRegionView::reset_fade_in_shape_width (nframes_t width)
 578 {
 579         if (fade_in_handle == 0) {
 580                 return;
 581         }
 582
 583         /* smallest size for a fade is 64 frames */
 584
 585         width = std::max ((nframes_t) 64, width);
 586
 587         Points* points;
 588         double pwidth = width / samples_per_unit;
 589         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 590         double h;
 591
 592         if (_height < 5) {
 593                 fade_in_shape->hide();
 594                 fade_in_handle->hide();
 595                 return;
 596         }
 597
 598         double handle_center;
 599         handle_center = pwidth;
 600
 601         if (handle_center > 7.0) {
 602                 handle_center -= 3.0;
 603         } else {
 604                 handle_center = 3.0;
 605         }
 606
 607         fade_in_handle->property_x1() =  handle_center - 3.0;
 608         fade_in_handle->property_x2() =  handle_center + 3.0;
 609
 610         if (pwidth < 5) {
 611                 fade_in_shape->hide();
 612                 return;
 613         }
 614
 615         if (trackview.session()->config.get_show_region_fades()) {
 616                 fade_in_shape->show();
 617         }
 618
 619         float curve[npoints];
 620         audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
 621
 622         points = get_canvas_points ("fade in shape", npoints + 3);
 623
 624         if (_height >= NAME_HIGHLIGHT_THRESH) {
 625                 h = _height - NAME_HIGHLIGHT_SIZE;
 626         } else {
 627                 h = _height;
 628         }
 629
 630         /* points *MUST* be in anti-clockwise order */
 631
 632         uint32_t pi, pc;
 633         double xdelta = pwidth/npoints;
 634
 635         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 636                 (*points)[pi].set_x(1 + (pc * xdelta));
 637                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 638         }
 639
 640         /* fold back */
 641
 642         (*points)[pi].set_x(pwidth);
 643         (*points)[pi++].set_y(2);
 644
 645         (*points)[pi].set_x(1);
 646         (*points)[pi++].set_y(2);
 647
 648         /* connect the dots ... */
 649
 650         (*points)[pi] = (*points)[0];
 651
 652         fade_in_shape->property_points() = *points;
 653         delete points;
 654
 655         /* ensure trim handle stays on top */
 656         frame_handle_start->raise_to_top();
 657 }
 658
 659 void
 660 AudioRegionView::reset_fade_out_shape ()
 661 {
 662         reset_fade_out_shape_width ((nframes_t) audio_region()->fade_out()->back()->when);
 663 }
 664
 665 void
 666 AudioRegionView::reset_fade_out_shape_width (nframes_t width)
 667 {
 668         if (fade_out_handle == 0) {
 669                 return;
 670         }
 671
 672         /* smallest size for a fade is 64 frames */
 673
 674         width = std::max ((nframes_t) 64, width);
 675
 676         Points* points;
 677         double pwidth = width / samples_per_unit;
 678         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 679         double h;
 680
 681         if (_height < 5) {
 682                 fade_out_shape->hide();
 683                 fade_out_handle->hide();
 684                 return;
 685         }
 686
 687         double handle_center;
 688         handle_center = (_region->length() - width) / samples_per_unit;
 689
 690         if (handle_center > 7.0) {
 691                 handle_center -= 3.0;
 692         } else {
 693                 handle_center = 3.0;
 694         }
 695
 696         fade_out_handle->property_x1() =  handle_center - 3.0;
 697         fade_out_handle->property_x2() =  handle_center + 3.0;
 698
 699         /* don't show shape if its too small */
 700
 701         if (pwidth < 5) {
 702                 fade_out_shape->hide();
 703                 return;
 704         }
 705
 706         if (trackview.session()->config.get_show_region_fades()) {
 707                 fade_out_shape->show();
 708         }
 709
 710         float curve[npoints];
 711         audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
 712
 713         if (_height >= NAME_HIGHLIGHT_THRESH) {
 714                 h = _height - NAME_HIGHLIGHT_SIZE;
 715         } else {
 716                 h = _height;
 717         }
 718
 719         /* points *MUST* be in anti-clockwise order */
 720
 721         points = get_canvas_points ("fade out shape", npoints + 3);
 722
 723         uint32_t pi, pc;
 724         double xdelta = pwidth/npoints;
 725
 726         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 727                 (*points)[pi].set_x(_pixel_width - 1 - pwidth + (pc*xdelta));
 728                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 729         }
 730
 731         /* fold back */
 732
 733         (*points)[pi].set_x(_pixel_width);
 734         (*points)[pi++].set_y(h);
 735
 736         (*points)[pi].set_x(_pixel_width);
 737         (*points)[pi++].set_y(2);
 738
 739         /* connect the dots ... */
 740
 741         (*points)[pi] = (*points)[0];
 742
 743         fade_out_shape->property_points() = *points;
 744         delete points;
 745
 746         /* ensure trim handle stays on top */
 747         frame_handle_end->raise_to_top();
 748 }
 749
 750 void
 751 AudioRegionView::set_samples_per_unit (gdouble spu)
 752 {
 753         RegionView::set_samples_per_unit (spu);
 754
 755         if (_flags & WaveformVisible) {
 756                 for (uint32_t n=0; n < waves.size(); ++n) {
 757                         waves[n]->property_samples_per_unit() = spu;
 758                 }
 759         }
 760
 761         if (gain_line) {
 762                 gain_line->reset ();
 763         }
 764
 765         reset_fade_shapes ();
 766 }
 767
 768 void
 769 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 770 {
 771         for (uint32_t n=0; n < waves.size(); ++n) {
 772                 waves[n]->property_amplitude_above_axis() = spp;
 773         }
 774 }
 775
 776 void
 777 AudioRegionView::compute_colors (Gdk::Color const & basic_color)
 778 {
 779         RegionView::compute_colors (basic_color);
 780
 781         uint32_t r, g, b, a;
 782
 783         /* gain color computed in envelope_active_changed() */
 784
 785         UINT_TO_RGBA (fill_color, &r, &g, &b, &a);
 786         fade_color = RGBA_TO_UINT(r,g,b,120);
 787 }
 788
 789 void
 790 AudioRegionView::set_colors ()
 791 {
 792         RegionView::set_colors();
 793
 794         if (gain_line) {
 795                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 796         }
 797
 798         for (uint32_t n=0; n < waves.size(); ++n) {
 799                 if (_region->muted()) {
 800                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 801                 } else {
 802                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 803                 }
 804
 805                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 806                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 807         }
 808 }
 809
 810 void
 811 AudioRegionView::set_waveform_visible (bool yn)
 812 {
 813         if (((_flags & WaveformVisible) != yn)) {
 814                 if (yn) {
 815                         for (uint32_t n=0; n < waves.size(); ++n) {
 816                                 /* make sure the zoom level is correct, since we don't update
 817                                    this when waveforms are hidden.
 818                                 */
 819                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 820                                 waves[n]->show();
 821                         }
 822                         _flags |= WaveformVisible;
 823                 } else {
 824                         for (uint32_t n=0; n < waves.size(); ++n) {
 825                                 waves[n]->hide();
 826                         }
 827                         _flags &= ~WaveformVisible;
 828                 }
 829                 store_flags ();
 830         }
 831 }
 832
 833 void
 834 AudioRegionView::temporarily_hide_envelope ()
 835 {
 836         if (gain_line) {
 837                 gain_line->hide ();
 838         }
 839 }
 840
 841 void
 842 AudioRegionView::unhide_envelope ()
 843 {
 844         if (gain_line && (_flags & EnvelopeVisible)) {
 845                 gain_line->show ();
 846         }
 847 }
 848
 849 void
 850 AudioRegionView::set_envelope_visible (bool yn)
 851 {
 852         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 853                 if (yn) {
 854                         gain_line->show ();
 855                         _flags |= EnvelopeVisible;
 856                 } else {
 857                         gain_line->hide ();
 858                         _flags &= ~EnvelopeVisible;
 859                 }
 860                 store_flags ();
 861         }
 862 }
 863
 864 void
 865 AudioRegionView::create_waves ()
 866 {
 867         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 868         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 869
 870         if (!atv.track()) {
 871                 return;
 872         }
 873
 874         ChanCount nchans = atv.track()->n_channels();
 875
 876         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
 877         //              << " and channels = " << nchans.n_audio() << endl;
 878
 879         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 880         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 881                 tmp_waves.push_back (0);
 882         }
 883
 884         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 885                 delete *i;
 886         }
 887
 888         _data_ready_connections.clear ();
 889
 890         for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
 891                 _data_ready_connections.push_back (0);
 892         }
 893
 894         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 895
 896                 if (n >= audio_region()->n_channels()) {
 897                         break;
 898                 }
 899
 900                 wave_caches.push_back (WaveView::create_cache ());
 901
 902                 // cerr << "\tchannel " << n << endl;
 903
 904                 if (wait_for_data) {
 905                         if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
 906                                 // cerr << "\tData is ready\n";
 907                                 create_one_wave (n, true);
 908                         } else {
 909                                 // cerr << "\tdata is not ready\n";
 910                                 // we'll get a PeaksReady signal from the source in the future
 911                                 // and will call create_one_wave(n) then.
 912                         }
 913
 914                 } else {
 915                         // cerr << "\tdon't delay, display today!\n";
 916                         create_one_wave (n, true);
 917                 }
 918
 919         }
 920 }
 921
 922 void
 923 AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 924 {
 925         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 926         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 927         uint32_t nchans = atv.track()->n_channels().n_audio();
 928         uint32_t n;
 929         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 930         gdouble ht;
 931
 932         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 933                 ht = ((trackview.current_height()) / (double) nchans);
 934         } else {
 935                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 936         }
 937
 938         gdouble yoff = which * ht;
 939
 940         WaveView *wave = new WaveView(*group);
 941
 942         wave->property_data_src() = (gpointer) _region.get();
 943         wave->property_cache() =  wave_caches[which];
 944         wave->property_cache_updater() = true;
 945         wave->property_channel() =  which;
 946         wave->property_length_function() = (gpointer) region_length_from_c;
 947         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 948         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 949         wave->property_x() =  0.0;
 950         wave->property_y() =  yoff;
 951         wave->property_height() =  (double) ht;
 952         wave->property_samples_per_unit() =  samples_per_unit;
 953         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 954
 955         if (_recregion) {
 956                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 957                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 958         } else {
 959                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 960                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 961         }
 962
 963         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 964         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 965         wave->property_region_start() = _region->start();
 966         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 967         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 968
 969         if (!(_flags & WaveformVisible)) {
 970                 wave->hide();
 971         }
 972
 973         /* note: calling this function is serialized by the lock
 974            held in the peak building thread that signals that
 975            peaks are ready for use *or* by the fact that it is
 976            called one by one from the GUI thread.
 977         */
 978
 979         if (which < nchans) {
 980                 tmp_waves[which] = wave;
 981         } else {
 982                 /* n-channel track, >n-channel source */
 983         }
 984
 985         /* see if we're all ready */
 986
 987         for (n = 0; n < nchans; ++n) {
 988                 if (tmp_waves[n] == 0) {
 989                         break;
 990                 }
 991         }
 992
 993         if (n == nwaves && waves.empty()) {
 994                 /* all waves are ready */
 995                 tmp_waves.resize(nwaves);
 996
 997                 waves = tmp_waves;
 998                 tmp_waves.clear ();
 999
1000                 /* all waves created, don't hook into peaks ready anymore */
1001                 delete _data_ready_connections[which];
1002                 _data_ready_connections[which] = 0;
1003
1004 #if 0
1005                 if (!zero_line) {
1006                         zero_line = new ArdourCanvas::SimpleLine (*group);
1007                         zero_line->property_x1() = (gdouble) 1.0;
1008                         zero_line->property_x2() = (gdouble) (_region->length() / samples_per_unit) - 1.0;
1009                         zero_line->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1010                         manage_zero_line ();
1011                 }
1012 #endif
1013         }
1014 }
1015
1016 void
1017 AudioRegionView::peaks_ready_handler (uint32_t which)
1018 {
1019         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
1020         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
1021 }
1022
1023 void
1024 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
1025 {
1026         if (gain_line == 0) {
1027                 return;
1028         }
1029
1030         double x, y;
1031
1032         /* don't create points that can't be seen */
1033
1034         set_envelope_visible (true);
1035
1036         x = ev->button.x;
1037         y = ev->button.y;
1038
1039         item->w2i (x, y);
1040
1041         nframes_t fx = trackview.editor().pixel_to_frame (x);
1042
1043         if (fx > _region->length()) {
1044                 return;
1045         }
1046
1047         /* compute vertical fractional position */
1048
1049         y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
1050
1051         /* map using gain line */
1052
1053         gain_line->view_to_model_coord (x, y);
1054
1055         /* XXX STATEFUL: can't convert to stateful diff until we
1056            can represent automation data with it.
1057         */
1058
1059         trackview.session()->begin_reversible_command (_("add gain control point"));
1060         XMLNode &before = audio_region()->envelope()->get_state();
1061
1062         if (!audio_region()->envelope_active()) {
1063                 XMLNode &region_before = audio_region()->get_state();
1064                 audio_region()->set_envelope_active(true);
1065                 XMLNode &region_after = audio_region()->get_state();
1066                 trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
1067         }
1068
1069         audio_region()->envelope()->add (fx, y);
1070
1071         XMLNode &after = audio_region()->envelope()->get_state();
1072         trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
1073         trackview.session()->commit_reversible_command ();
1074 }
1075
1076 void
1077 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
1078 {
1079         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1080         audio_region()->envelope()->erase (cp->model());
1081 }
1082
1083 void
1084 AudioRegionView::store_flags()
1085 {
1086         XMLNode *node = new XMLNode ("GUI");
1087
1088         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1089         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1090         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1091         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1092
1093         _region->add_extra_xml (*node);
1094 }
1095
1096 void
1097 AudioRegionView::set_flags (XMLNode* node)
1098 {
1099         XMLProperty *prop;
1100
1101         if ((prop = node->property ("waveform-visible")) != 0) {
1102                 if (string_is_affirmative (prop->value())) {
1103                         _flags |= WaveformVisible;
1104                 }
1105         }
1106
1107         if ((prop = node->property ("envelope-visible")) != 0) {
1108                 if (string_is_affirmative (prop->value())) {
1109                         _flags |= EnvelopeVisible;
1110                 }
1111         }
1112
1113         if ((prop = node->property ("waveform-rectified")) != 0) {
1114                 if (string_is_affirmative (prop->value())) {
1115                         _flags |= WaveformRectified;
1116                 }
1117         }
1118
1119         if ((prop = node->property ("waveform-logscaled")) != 0) {
1120                 if (string_is_affirmative (prop->value())) {
1121                         _flags |= WaveformLogScaled;
1122                 }
1123         }
1124 }
1125
1126 void
1127 AudioRegionView::set_waveform_shape (WaveformShape shape)
1128 {
1129         bool yn;
1130
1131         /* this slightly odd approach is to leave the door open to
1132            other "shapes" such as spectral displays, etc.
1133         */
1134
1135         switch (shape) {
1136         case Rectified:
1137                 yn = true;
1138                 break;
1139
1140         default:
1141                 yn = false;
1142                 break;
1143         }
1144
1145         if (yn != (bool) (_flags & WaveformRectified)) {
1146                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1147                         (*wave)->property_rectified() = yn;
1148                 }
1149
1150                 if (zero_line) {
1151                         if (yn) {
1152                                 zero_line->hide();
1153                         } else {
1154                                 zero_line->show();
1155                         }
1156                 }
1157
1158                 if (yn) {
1159                         _flags |= WaveformRectified;
1160                 } else {
1161                         _flags &= ~WaveformRectified;
1162                 }
1163                 store_flags ();
1164         }
1165 }
1166
1167 void
1168 AudioRegionView::set_waveform_scale (WaveformScale scale)
1169 {
1170         bool yn = (scale == Logarithmic);
1171
1172         if (yn != (bool) (_flags & WaveformLogScaled)) {
1173                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1174                         (*wave)->property_logscaled() = yn;
1175                 }
1176
1177                 if (yn) {
1178                         _flags |= WaveformLogScaled;
1179                 } else {
1180                         _flags &= ~WaveformLogScaled;
1181                 }
1182                 store_flags ();
1183         }
1184 }
1185
1186
1187 GhostRegion*
1188 AudioRegionView::add_ghost (TimeAxisView& tv)
1189 {
1190         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1191         assert(rtv);
1192
1193         double unit_position = _region->position () / samples_per_unit;
1194         AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
1195         uint32_t nchans;
1196
1197         nchans = rtv->track()->n_channels().n_audio();
1198
1199         for (uint32_t n = 0; n < nchans; ++n) {
1200
1201                 if (n >= audio_region()->n_channels()) {
1202                         break;
1203                 }
1204
1205                 WaveView *wave = new WaveView(*ghost->group);
1206
1207                 wave->property_data_src() = _region.get();
1208                 wave->property_cache() =  wave_caches[n];
1209                 wave->property_cache_updater() = false;
1210                 wave->property_channel() = n;
1211                 wave->property_length_function() = (gpointer)region_length_from_c;
1212                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1213                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1214                 wave->property_x() =  0.0;
1215                 wave->property_samples_per_unit() =  samples_per_unit;
1216                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1217
1218                 wave->property_region_start() = _region->start();
1219
1220                 ghost->waves.push_back(wave);
1221         }
1222
1223         ghost->set_height ();
1224         ghost->set_duration (_region->length() / samples_per_unit);
1225         ghost->set_colors();
1226         ghosts.push_back (ghost);
1227
1228         return ghost;
1229 }
1230
1231 void
1232 AudioRegionView::entered ()
1233 {
1234         if (gain_line && _flags & EnvelopeVisible) {
1235                 gain_line->show_all_control_points ();
1236         }
1237
1238         uint32_t r,g,b,a;
1239         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1240         a=255;
1241
1242         if (fade_in_handle) {
1243                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1244                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1245         }
1246 }
1247
1248 void
1249 AudioRegionView::exited ()
1250 {
1251         if (gain_line) {
1252                 gain_line->hide_all_but_selected_control_points ();
1253         }
1254
1255         uint32_t r,g,b,a;
1256         UINT_TO_RGBA(fade_color,&r,&g,&b,&a);
1257         a=0;
1258
1259         if (fade_in_handle) {
1260                 fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1261                 fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a);
1262         }
1263 }
1264
1265 void
1266 AudioRegionView::envelope_active_changed ()
1267 {
1268         if (gain_line) {
1269                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1270         }
1271 }
1272
1273 void
1274 AudioRegionView::set_waveview_data_src()
1275 {
1276         AudioGhostRegion* agr;
1277         double unit_length= _region->length() / samples_per_unit;
1278
1279         for (uint32_t n = 0; n < waves.size(); ++n) {
1280                 // TODO: something else to let it know the channel
1281                 waves[n]->property_data_src() = _region.get();
1282         }
1283
1284         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1285
1286                 (*i)->set_duration (unit_length);
1287
1288                 if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
1289                         for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
1290                                 (*w)->property_data_src() = _region.get();
1291                         }
1292                 }
1293         }
1294
1295 }
1296
1297 void
1298 AudioRegionView::color_handler ()
1299 {
1300         //case cMutedWaveForm:
1301         //case cWaveForm:
1302         //case cWaveFormClip:
1303         //case cZeroLine:
1304         set_colors ();
1305
1306         //case cGainLineInactive:
1307         //case cGainLine:
1308         envelope_active_changed();
1309
1310 }
1311
1312 void
1313 AudioRegionView::set_frame_color ()
1314 {
1315         if (!frame) {
1316                 return;
1317         }
1318
1319         if (_region->opaque()) {
1320                 fill_opacity = 130;
1321         } else {
1322                 fill_opacity = 0;
1323         }
1324
1325         uint32_t r,g,b,a;
1326
1327         if (_selected && should_show_selection) {
1328                 UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get(), &r, &g, &b, &a);
1329                 frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1330
1331                 for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1332                         if (_region->muted()) {
1333                                 (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1334                         } else {
1335                                 (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1336                                 (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1337                         }
1338                 }
1339         } else {
1340                 if (_recregion) {
1341                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_RecordingRect.get(), &r, &g, &b, &a);
1342                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, a);
1343
1344                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1345                                 if (_region->muted()) {
1346                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1347                                 } else {
1348                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1349                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1350                                 }
1351                         }
1352                 } else {
1353                         UINT_TO_RGBA(ARDOUR_UI::config()->canvasvar_FrameBase.get(), &r, &g, &b, &a);
1354                         frame->property_fill_color_rgba() = RGBA_TO_UINT(r, g, b, fill_opacity ? fill_opacity : a);
1355
1356                         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1357                                 if (_region->muted()) {
1358                                         (*w)->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1359                                 } else {
1360                                         (*w)->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1361                                         (*w)->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1362                                 }
1363                         }
1364                 }
1365         }
1366 }
1367
1368 void
1369 AudioRegionView::set_fade_visibility (bool yn)
1370 {
1371         if (yn) {
1372                 if (fade_in_shape) {
1373                         fade_in_shape->show();
1374                 }
1375                 if (fade_out_shape) {
1376                         fade_out_shape->show ();
1377                 }
1378                 if (fade_in_handle) {
1379                         fade_in_handle->show ();
1380                 }
1381                 if (fade_out_handle) {
1382                         fade_out_handle->show ();
1383                 }
1384         } else {
1385                 if (fade_in_shape) {
1386                         fade_in_shape->hide();
1387                 }
1388                 if (fade_out_shape) {
1389                         fade_out_shape->hide ();
1390                 }
1391                 if (fade_in_handle) {
1392                         fade_in_handle->hide ();
1393                 }
1394                 if (fade_out_handle) {
1395                         fade_out_handle->hide ();
1396                 }
1397         }
1398 }
1399
1400 void
1401 AudioRegionView::update_coverage_frames (LayerDisplay d)
1402 {
1403         RegionView::update_coverage_frames (d);
1404
1405         fade_in_handle->raise_to_top ();
1406         fade_out_handle->raise_to_top ();
1407 }
1408
1409 void
1410 AudioRegionView::show_region_editor ()
1411 {
1412         if (editor == 0) {
1413                 editor = new AudioRegionEditor (trackview.session(), audio_region());
1414         }
1415
1416         editor->present ();
1417         editor->show_all();
1418 }
1419
1420 void
1421 AudioRegionView::transients_changed ()
1422 {
1423         AnalysisFeatureList analysis_features = _region->transients();
1424
1425         while (feature_lines.size() < analysis_features.size()) {
1426                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*group);
1427                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1428                 feature_lines.push_back (make_pair(0, l));
1429         }
1430
1431         while (feature_lines.size() > analysis_features.size()) {
1432                 ArdourCanvas::SimpleLine *line = feature_lines.back().second;
1433                 feature_lines.pop_back ();
1434                 delete line;
1435         }
1436
1437         AnalysisFeatureList::const_iterator i;
1438         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1439
1440         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1441                 (*l).first = *i;
1442                 (*l).second->property_x1() = trackview.editor().frame_to_pixel (*i);
1443                 (*l).second->property_x2() = trackview.editor().frame_to_pixel (*i);
1444                 (*l).second->property_y1() = 2;
1445                 (*l).second->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
1446                 (*l).second->set_data("regionview", this);
1447                 (*l).second->show ();
1448                 (*l).second->raise_to_top ();
1449
1450                 (*l).second->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), (*l).second, this));
1451         }
1452 }
1453
1454 void
1455 AudioRegionView::update_transient(float old_pos, float new_pos)
1456 {
1457         /* Find frame at old pos, calulate new frame then update region transients*/
1458         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1459
1460         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1461                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1462                 if (rint(new_pos) == rint((*l).second->property_x1())) {
1463
1464                     nframes64_t old_frame = (*l).first;
1465                     nframes64_t new_frame = trackview.editor().pixel_to_frame (new_pos);
1466
1467                     _region->update_transient (old_frame, new_frame);
1468
1469                     break;
1470                 }
1471         }
1472 }
1473
1474 void
1475 AudioRegionView::remove_transient(float pos)
1476 {
1477         /* Find frame at old pos, calulate new frame then update region transients*/
1478         list<std::pair<nframes64_t, ArdourCanvas::SimpleLine*> >::iterator l;
1479
1480         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1481                 /* Simple line x1 has been updated in drag so we compare to new_pos */
1482                 if (rint(pos) == rint((*l).second->property_x1())) {
1483                     _region->remove_transient ((*l).first);
1484                     break;
1485                 }
1486         }
1487 }