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         , fade_in_shape(0)
  72         , fade_out_shape(0)
  73         , fade_in_handle(0)
  74         , fade_out_handle(0)
  75         , fade_position_line(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         , fade_in_shape(0)
  89         , fade_out_shape(0)
  90         , fade_in_handle(0)
  91         , fade_out_handle(0)
  92         , fade_position_line(0)
  93         , gain_line(0)
  94         , _amplitude_above_axis(1.0)
  95         , _flags(0)
  96         , fade_color(0)
  97 {
  98 }
  99
 100 AudioRegionView::AudioRegionView (const AudioRegionView& other, boost::shared_ptr<AudioRegion> other_region)
 101         : RegionView (other, boost::shared_ptr<Region> (other_region))
 102         , fade_in_shape(0)
 103         , fade_out_shape(0)
 104         , fade_in_handle(0)
 105         , fade_out_handle(0)
 106         , fade_position_line(0)
 107         , gain_line(0)
 108         , _amplitude_above_axis (other._amplitude_above_axis)
 109         , _flags (other._flags)
 110         , fade_color(0)
 111 {
 112         Gdk::Color c;
 113         int r,g,b,a;
 114
 115         UINT_TO_RGBA (other.fill_color, &r, &g, &b, &a);
 116         c.set_rgb_p (r/255.0, g/255.0, b/255.0);
 117
 118         init (c, true);
 119 }
 120
 121 void
 122 AudioRegionView::init (Gdk::Color const & basic_color, bool wfd)
 123 {
 124         // FIXME: Some redundancy here with RegionView::init.  Need to figure out
 125         // where order is important and where it isn't...
 126
 127         RegionView::init (basic_color, wfd);
 128
 129         XMLNode *node;
 130
 131         _amplitude_above_axis = 1.0;
 132         _flags                = 0;
 133
 134         if ((node = _region->extra_xml ("GUI")) != 0) {
 135                 set_flags (node);
 136         } else {
 137                 _flags = WaveformVisible;
 138                 store_flags ();
 139         }
 140
 141         /* make envelope visible if it has anything interesting in it */
 142         boost::shared_ptr<AutomationList> env = audio_region()->envelope ();
 143         if (env->size() > 2 || (env->size() == 2 && env->front()->value != env->back()->value)) {
 144                 _flags |= EnvelopeVisible;
 145         }
 146
 147         compute_colors (basic_color);
 148
 149         create_waves ();
 150
 151         fade_in_shape = new ArdourCanvas::Polygon (*group);
 152         fade_in_shape->property_fill_color_rgba() = fade_color;
 153         fade_in_shape->set_data ("regionview", this);
 154
 155         fade_out_shape = new ArdourCanvas::Polygon (*group);
 156         fade_out_shape->property_fill_color_rgba() = fade_color;
 157         fade_out_shape->set_data ("regionview", this);
 158
 159         if (!_recregion) {
 160                 fade_in_handle = new ArdourCanvas::SimpleRect (*group);
 161                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
 162                 fade_in_handle->property_outline_pixels() = 0;
 163
 164                 fade_in_handle->set_data ("regionview", this);
 165
 166                 fade_out_handle = new ArdourCanvas::SimpleRect (*group);
 167                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fill_color, 0);
 168                 fade_out_handle->property_outline_pixels() = 0;
 169
 170                 fade_out_handle->set_data ("regionview", this);
 171
 172                 fade_position_line = new ArdourCanvas::SimpleLine (*group);
 173                 fade_position_line->property_color_rgba() = 0xBBBBBBAA;
 174                 fade_position_line->property_y1() = 7;
 175                 fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 176
 177                 fade_position_line->hide();
 178         }
 179
 180         setup_fade_handle_positions ();
 181
 182         if (!trackview.session()->config.get_show_region_fades()) {
 183                 set_fade_visibility (false);
 184         }
 185
 186         const string line_name = _region->name() + ":gain";
 187
 188         if (!Profile->get_sae()) {
 189                 gain_line = new AudioRegionGainLine (line_name, *this, *group, audio_region()->envelope());
 190         }
 191
 192         if (!(_flags & EnvelopeVisible)) {
 193                 gain_line->hide ();
 194         } else {
 195                 gain_line->show ();
 196         }
 197
 198         gain_line->reset ();
 199
 200         set_height (trackview.current_height());
 201
 202         region_muted ();
 203         region_sync_changed ();
 204
 205         region_resized (ARDOUR::bounds_change);
 206         set_waveview_data_src();
 207         region_locked ();
 208         envelope_active_changed ();
 209         fade_in_active_changed ();
 210         fade_out_active_changed ();
 211
 212         reset_width_dependent_items (_pixel_width);
 213
 214         fade_in_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this));
 215         if (fade_in_handle) {
 216                 fade_in_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this));
 217         }
 218
 219         fade_out_shape->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this));
 220
 221         if (fade_out_handle) {
 222                 fade_out_handle->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this));
 223         }
 224
 225         set_colors ();
 226
 227         /* XXX sync mark drag? */
 228 }
 229
 230 AudioRegionView::~AudioRegionView ()
 231 {
 232         in_destructor = true;
 233
 234         RegionViewGoingAway (this); /* EMIT_SIGNAL */
 235
 236         for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) {
 237                 gnome_canvas_waveview_cache_destroy (*cache);
 238         }
 239
 240         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 241                 delete *i;
 242         }
 243
 244         for (list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 245                 delete ((*i).second);
 246         }
 247
 248         /* all waveviews etc will be destroyed when the group is destroyed */
 249
 250         delete gain_line;
 251 }
 252
 253 boost::shared_ptr<ARDOUR::AudioRegion>
 254 AudioRegionView::audio_region() const
 255 {
 256         // "Guaranteed" to succeed...
 257         return boost::dynamic_pointer_cast<AudioRegion>(_region);
 258 }
 259
 260 void
 261 AudioRegionView::region_changed (const PropertyChange& what_changed)
 262 {
 263         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_changed, what_changed);
 264         // cerr << "AudioRegionView::region_changed() called" << endl;
 265
 266         RegionView::region_changed (what_changed);
 267
 268         if (what_changed.contains (ARDOUR::Properties::scale_amplitude)) {
 269                 region_scale_amplitude_changed ();
 270         }
 271         if (what_changed.contains (ARDOUR::Properties::fade_in)) {
 272                 fade_in_changed ();
 273         }
 274         if (what_changed.contains (ARDOUR::Properties::fade_out)) {
 275                 fade_out_changed ();
 276         }
 277         if (what_changed.contains (ARDOUR::Properties::fade_in_active)) {
 278                 fade_in_active_changed ();
 279         }
 280         if (what_changed.contains (ARDOUR::Properties::fade_out_active)) {
 281                 fade_out_active_changed ();
 282         }
 283         if (what_changed.contains (ARDOUR::Properties::envelope_active)) {
 284                 envelope_active_changed ();
 285         }
 286         if (what_changed.contains (ARDOUR::Properties::valid_transients)) {
 287                 transients_changed ();
 288         }
 289 }
 290
 291 void
 292 AudioRegionView::fade_in_changed ()
 293 {
 294         reset_fade_in_shape ();
 295 }
 296
 297 void
 298 AudioRegionView::fade_out_changed ()
 299 {
 300         reset_fade_out_shape ();
 301 }
 302 void
 303 AudioRegionView::fade_in_active_changed ()
 304 {
 305         if (audio_region()->fade_in_active()) {
 306                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                          // FIXME make a themeable colour
 307                 fade_in_shape->property_width_pixels() = 1;
 308         } else {
 309                 fade_in_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                          // FIXME make a themeable colour
 310                 fade_in_shape->property_width_pixels() = 1;
 311         }
 312 }
 313
 314 void
 315 AudioRegionView::fade_out_active_changed ()
 316 {
 317         if (audio_region()->fade_out_active()) {
 318                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,90);                         // FIXME make a themeable colour
 319                 fade_out_shape->property_width_pixels() = 1;
 320         } else {
 321                 fade_out_shape->property_fill_color_rgba() = RGBA_TO_UINT(45,45,45,20);                         // FIXME make a themeable colour
 322                 fade_out_shape->property_width_pixels() = 1;
 323         }
 324 }
 325
 326
 327 void
 328 AudioRegionView::region_scale_amplitude_changed ()
 329 {
 330         ENSURE_GUI_THREAD (*this, &AudioRegionView::region_scale_amplitude_changed)
 331
 332         for (uint32_t n = 0; n < waves.size(); ++n) {
 333                 // force a reload of the cache
 334                 waves[n]->property_data_src() = _region.get();
 335         }
 336 }
 337
 338 void
 339 AudioRegionView::region_renamed ()
 340 {
 341         std::string str = RegionView::make_name ();
 342
 343         if (audio_region()->speed_mismatch (trackview.session()->frame_rate())) {
 344                 str = string ("*") + str;
 345         }
 346
 347         if (_region->muted()) {
 348                 str = string ("!") + str;
 349         }
 350
 351         set_item_name (str, this);
 352         set_name_text (str);
 353 }
 354
 355 void
 356 AudioRegionView::region_resized (const PropertyChange& what_changed)
 357 {
 358         AudioGhostRegion* agr;
 359
 360         RegionView::region_resized(what_changed);
 361         PropertyChange interesting_stuff;
 362
 363         interesting_stuff.add (ARDOUR::Properties::start);
 364         interesting_stuff.add (ARDOUR::Properties::length);
 365
 366         if (what_changed.contains (interesting_stuff)) {
 367
 368                 for (uint32_t n = 0; n < waves.size(); ++n) {
 369                         waves[n]->property_region_start() = _region->start();
 370                 }
 371
 372                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 373                         if ((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
 374
 375                                 for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
 376                                         (*w)->property_region_start() = _region->start();
 377                                 }
 378                         }
 379                 }
 380
 381                 /* hide transient lines that extend beyond the region end */
 382
 383                 list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
 384
 385                 for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 386                         if (l->first > _region->length() - 1) {
 387                                 l->second->hide();
 388                         } else {
 389                                 l->second->show();
 390                         }
 391                 }
 392         }
 393 }
 394
 395 void
 396 AudioRegionView::reset_width_dependent_items (double pixel_width)
 397 {
 398         RegionView::reset_width_dependent_items(pixel_width);
 399         assert(_pixel_width == pixel_width);
 400
 401         if (fade_in_handle) {
 402                 if (pixel_width <= 6.0 || _height < 5.0 || !trackview.session()->config.get_show_region_fades()) {
 403                         fade_in_handle->hide();
 404                         fade_out_handle->hide();
 405                 }
 406                 else {
 407                         fade_in_handle->show();
 408                         fade_out_handle->show();
 409                 }
 410         }
 411
 412         AnalysisFeatureList analysis_features = _region->transients();
 413         AnalysisFeatureList::const_iterator i;
 414
 415         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
 416
 417         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 418
 419                 float x_pos = trackview.editor().frame_to_pixel (*i);
 420
 421                 ArdourCanvas::Points points;
 422                 points.push_back(Gnome::Art::Point(x_pos, 2.0)); // first x-coord needs to be a non-normal value
 423                 points.push_back(Gnome::Art::Point(x_pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 424
 425                 (*l).first = *i;
 426                 (*l).second->property_points() = points;
 427         }
 428
 429         reset_fade_shapes ();
 430 }
 431
 432 void
 433 AudioRegionView::region_muted ()
 434 {
 435         RegionView::region_muted();
 436
 437         for (uint32_t n=0; n < waves.size(); ++n) {
 438                 if (_region->muted()) {
 439                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 440                 } else {
 441                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 442                 }
 443         }
 444 }
 445
 446 void
 447 AudioRegionView::setup_fade_handle_positions()
 448 {
 449         /* position of fade handle offset from the top of the region view */
 450         double const handle_pos = 2;
 451         /* height of fade handles */
 452         double const handle_height = 5;
 453
 454         if (fade_in_handle) {
 455                 fade_in_handle->property_y1() = handle_pos;
 456                 fade_in_handle->property_y2() = handle_pos + handle_height;
 457         }
 458
 459         if (fade_out_handle) {
 460                 fade_out_handle->property_y1() = handle_pos;
 461                 fade_out_handle->property_y2() = handle_pos + handle_height;
 462         }
 463 }
 464
 465 void
 466 AudioRegionView::set_height (gdouble height)
 467 {
 468         RegionView::set_height (height);
 469
 470         uint32_t wcnt = waves.size();
 471
 472         for (uint32_t n = 0; n < wcnt; ++n) {
 473                 gdouble ht;
 474
 475                 if (height < NAME_HIGHLIGHT_THRESH) {
 476                         ht = ((height - 2 * wcnt) / (double) wcnt);
 477                 } else {
 478                         ht = (((height - 2 * wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt);
 479                 }
 480
 481                 gdouble yoff = n * (ht + 1);
 482
 483                 waves[n]->property_height() = ht;
 484                 waves[n]->property_y() = yoff + 2;
 485         }
 486
 487         if (gain_line) {
 488
 489                 if ((height/wcnt) < NAME_HIGHLIGHT_THRESH) {
 490                         gain_line->hide ();
 491                 } else {
 492                         if (_flags & EnvelopeVisible) {
 493                                 gain_line->show ();
 494                         }
 495                 }
 496
 497                 gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE) - 2);
 498         }
 499
 500         reset_fade_shapes ();
 501
 502         /* Update hights for any active feature lines */
 503         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
 504
 505         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
 506
 507                 float pos_x = trackview.editor().frame_to_pixel((*l).first);
 508
 509                 ArdourCanvas::Points points;
 510
 511                 points.push_back(Gnome::Art::Point(pos_x, 2.0)); // first x-coord needs to be a non-normal value
 512                 points.push_back(Gnome::Art::Point(pos_x, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
 513
 514                 (*l).second->property_points() = points;
 515         }
 516
 517         if (fade_position_line) {
 518
 519                 if (height < NAME_HIGHLIGHT_THRESH) {
 520                         fade_position_line->property_y2() = _height - 1;
 521                 }
 522                 else {
 523                         fade_position_line->property_y2() = _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1;
 524                 }
 525         }
 526
 527         if (name_pixbuf) {
 528                 name_pixbuf->raise_to_top();
 529         }
 530 }
 531
 532 void
 533 AudioRegionView::reset_fade_shapes ()
 534 {
 535         reset_fade_in_shape ();
 536         reset_fade_out_shape ();
 537 }
 538
 539 void
 540 AudioRegionView::reset_fade_in_shape ()
 541 {
 542         reset_fade_in_shape_width ((framecnt_t) audio_region()->fade_in()->back()->when);
 543 }
 544
 545 void
 546 AudioRegionView::reset_fade_in_shape_width (framecnt_t width)
 547 {
 548         if (fade_in_handle == 0) {
 549                 return;
 550         }
 551
 552         /* smallest size for a fade is 64 frames */
 553
 554         width = std::max ((framecnt_t) 64, width);
 555
 556         Points* points;
 557
 558         /* round here to prevent little visual glitches with sub-pixel placement */
 559         double const pwidth = rint (width / samples_per_unit);
 560         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 561         double h;
 562
 563         if (_height < 5) {
 564                 fade_in_shape->hide();
 565                 fade_in_handle->hide();
 566                 return;
 567         }
 568
 569         double const handle_center = pwidth;
 570
 571         /* Put the fade in handle so that its left side is at the end-of-fade line */
 572         fade_in_handle->property_x1() = handle_center;
 573         fade_in_handle->property_x2() = handle_center + 6;
 574
 575         if (pwidth < 5) {
 576                 fade_in_shape->hide();
 577                 return;
 578         }
 579
 580         if (trackview.session()->config.get_show_region_fades()) {
 581                 fade_in_shape->show();
 582         }
 583
 584         float curve[npoints];
 585         audio_region()->fade_in()->curve().get_vector (0, audio_region()->fade_in()->back()->when, curve, npoints);
 586
 587         points = get_canvas_points ("fade in shape", npoints + 3);
 588
 589         if (_height >= NAME_HIGHLIGHT_THRESH) {
 590                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 591         } else {
 592                 h = _height;
 593         }
 594
 595         /* points *MUST* be in anti-clockwise order */
 596
 597         uint32_t pi, pc;
 598         double xdelta = pwidth/npoints;
 599
 600         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 601                 (*points)[pi].set_x(1 + (pc * xdelta));
 602                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 603         }
 604
 605         /* fold back */
 606
 607         (*points)[pi].set_x(pwidth);
 608         (*points)[pi++].set_y(2);
 609
 610         (*points)[pi].set_x(1);
 611         (*points)[pi++].set_y(2);
 612
 613         /* connect the dots ... */
 614
 615         (*points)[pi] = (*points)[0];
 616
 617         fade_in_shape->property_points() = *points;
 618         delete points;
 619
 620         /* ensure trim handle stays on top */
 621         if (frame_handle_start) {
 622                 frame_handle_start->raise_to_top();
 623         }
 624 }
 625
 626 void
 627 AudioRegionView::reset_fade_out_shape ()
 628 {
 629         reset_fade_out_shape_width ((framecnt_t) audio_region()->fade_out()->back()->when);
 630 }
 631
 632 void
 633 AudioRegionView::reset_fade_out_shape_width (framecnt_t width)
 634 {
 635         if (fade_out_handle == 0) {
 636                 return;
 637         }
 638
 639         /* smallest size for a fade is 64 frames */
 640
 641         width = std::max ((framecnt_t) 64, width);
 642
 643         Points* points;
 644
 645         /* round here to prevent little visual glitches with sub-pixel placement */
 646         double const pwidth = rint (width / samples_per_unit);
 647         uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth);
 648         double h;
 649
 650         if (_height < 5) {
 651                 fade_out_shape->hide();
 652                 fade_out_handle->hide();
 653                 return;
 654         }
 655
 656         double const handle_center = (_region->length() - width) / samples_per_unit;
 657
 658         /* Put the fade out handle so that its right side is at the end-of-fade line;
 659          * it's `one out' for precise pixel accuracy.
 660          */
 661         fade_out_handle->property_x1() = handle_center - 5;
 662         fade_out_handle->property_x2() = handle_center + 1;
 663
 664         /* don't show shape if its too small */
 665
 666         if (pwidth < 5) {
 667                 fade_out_shape->hide();
 668                 return;
 669         }
 670
 671         if (trackview.session()->config.get_show_region_fades()) {
 672                 fade_out_shape->show();
 673         }
 674
 675         float curve[npoints];
 676         audio_region()->fade_out()->curve().get_vector (0, audio_region()->fade_out()->back()->when, curve, npoints);
 677
 678         if (_height >= NAME_HIGHLIGHT_THRESH) {
 679                 h = _height - NAME_HIGHLIGHT_SIZE - 2;
 680         } else {
 681                 h = _height;
 682         }
 683
 684         /* points *MUST* be in anti-clockwise order */
 685
 686         points = get_canvas_points ("fade out shape", npoints + 3);
 687
 688         uint32_t pi, pc;
 689         double xdelta = pwidth/npoints;
 690
 691         for (pi = 0, pc = 0; pc < npoints; ++pc) {
 692                 (*points)[pi].set_x(_pixel_width - pwidth + (pc * xdelta));
 693                 (*points)[pi++].set_y(2 + (h - (curve[pc] * h)));
 694         }
 695
 696         /* fold back */
 697
 698         (*points)[pi].set_x(_pixel_width);
 699         (*points)[pi++].set_y(h);
 700
 701         (*points)[pi].set_x(_pixel_width);
 702         (*points)[pi++].set_y(2);
 703
 704         /* connect the dots ... */
 705
 706         (*points)[pi] = (*points)[0];
 707
 708         fade_out_shape->property_points() = *points;
 709         delete points;
 710
 711         /* ensure trim handle stays on top */
 712         if (frame_handle_end) {
 713                 frame_handle_end->raise_to_top();
 714         }
 715 }
 716
 717 void
 718 AudioRegionView::set_samples_per_unit (gdouble spu)
 719 {
 720         RegionView::set_samples_per_unit (spu);
 721
 722         if (_flags & WaveformVisible) {
 723                 for (uint32_t n=0; n < waves.size(); ++n) {
 724                         waves[n]->property_samples_per_unit() = spu;
 725                 }
 726         }
 727
 728         if (gain_line) {
 729                 gain_line->reset ();
 730         }
 731
 732         reset_fade_shapes ();
 733 }
 734
 735 void
 736 AudioRegionView::set_amplitude_above_axis (gdouble spp)
 737 {
 738         for (uint32_t n=0; n < waves.size(); ++n) {
 739                 waves[n]->property_amplitude_above_axis() = spp;
 740         }
 741 }
 742
 743 void
 744 AudioRegionView::compute_colors (Gdk::Color const & basic_color)
 745 {
 746         RegionView::compute_colors (basic_color);
 747
 748         /* gain color computed in envelope_active_changed() */
 749
 750         fade_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 751 }
 752
 753 void
 754 AudioRegionView::set_colors ()
 755 {
 756         RegionView::set_colors();
 757
 758         if (gain_line) {
 759                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
 760         }
 761
 762         for (uint32_t n=0; n < waves.size(); ++n) {
 763                 if (_region->muted()) {
 764                         waves[n]->property_wave_color() = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
 765                 } else {
 766                         waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_WaveForm.get();
 767                 }
 768
 769                 waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 770                 waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 771         }
 772 }
 773
 774 void
 775 AudioRegionView::set_waveform_visible (bool yn)
 776 {
 777         if (((_flags & WaveformVisible) != yn)) {
 778                 if (yn) {
 779                         for (uint32_t n=0; n < waves.size(); ++n) {
 780                                 /* make sure the zoom level is correct, since we don't update
 781                                    this when waveforms are hidden.
 782                                 */
 783                                 waves[n]->property_samples_per_unit() = samples_per_unit;
 784                                 waves[n]->show();
 785                         }
 786                         _flags |= WaveformVisible;
 787                 } else {
 788                         for (uint32_t n=0; n < waves.size(); ++n) {
 789                                 waves[n]->hide();
 790                         }
 791                         _flags &= ~WaveformVisible;
 792                 }
 793                 store_flags ();
 794         }
 795 }
 796
 797 void
 798 AudioRegionView::temporarily_hide_envelope ()
 799 {
 800         if (gain_line) {
 801                 gain_line->hide ();
 802         }
 803 }
 804
 805 void
 806 AudioRegionView::unhide_envelope ()
 807 {
 808         if (gain_line && (_flags & EnvelopeVisible)) {
 809                 gain_line->show ();
 810         }
 811 }
 812
 813 void
 814 AudioRegionView::set_envelope_visible (bool yn)
 815 {
 816         if (gain_line && ((_flags & EnvelopeVisible) != yn)) {
 817                 if (yn) {
 818                         gain_line->show ();
 819                         _flags |= EnvelopeVisible;
 820                 } else {
 821                         gain_line->hide ();
 822                         _flags &= ~EnvelopeVisible;
 823                 }
 824                 store_flags ();
 825         }
 826 }
 827
 828 void
 829 AudioRegionView::create_waves ()
 830 {
 831         // cerr << "AudioRegionView::create_waves() called on " << this << endl;//DEBUG
 832         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 833
 834         if (!atv.track()) {
 835                 return;
 836         }
 837
 838         ChanCount nchans = atv.track()->n_channels();
 839
 840         // cerr << "creating waves for " << _region->name() << " with wfd = " << wait_for_data
 841         //              << " and channels = " << nchans.n_audio() << endl;
 842
 843         /* in tmp_waves, set up null pointers for each channel so the vector is allocated */
 844         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 845                 tmp_waves.push_back (0);
 846         }
 847
 848         for (vector<ScopedConnection*>::iterator i = _data_ready_connections.begin(); i != _data_ready_connections.end(); ++i) {
 849                 delete *i;
 850         }
 851
 852         _data_ready_connections.clear ();
 853
 854         for (uint32_t i = 0; i < nchans.n_audio(); ++i) {
 855                 _data_ready_connections.push_back (0);
 856         }
 857
 858         for (uint32_t n = 0; n < nchans.n_audio(); ++n) {
 859
 860                 if (n >= audio_region()->n_channels()) {
 861                         break;
 862                 }
 863
 864                 wave_caches.push_back (WaveView::create_cache ());
 865
 866                 // cerr << "\tchannel " << n << endl;
 867
 868                 if (wait_for_data) {
 869                         if (audio_region()->audio_source(n)->peaks_ready (boost::bind (&AudioRegionView::peaks_ready_handler, this, n), &_data_ready_connections[n], gui_context())) {
 870                                 // cerr << "\tData is ready\n";
 871                                 create_one_wave (n, true);
 872                         } else {
 873                                 // cerr << "\tdata is not ready\n";
 874                                 // we'll get a PeaksReady signal from the source in the future
 875                                 // and will call create_one_wave(n) then.
 876                         }
 877
 878                 } else {
 879                         // cerr << "\tdon't delay, display today!\n";
 880                         create_one_wave (n, true);
 881                 }
 882
 883         }
 884 }
 885
 886 void
 887 AudioRegionView::create_one_wave (uint32_t which, bool /*direct*/)
 888 {
 889         //cerr << "AudioRegionView::create_one_wave() called which: " << which << " this: " << this << endl;//DEBUG
 890         RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick
 891         uint32_t nchans = atv.track()->n_channels().n_audio();
 892         uint32_t n;
 893         uint32_t nwaves = std::min (nchans, audio_region()->n_channels());
 894         gdouble ht;
 895
 896         if (trackview.current_height() < NAME_HIGHLIGHT_THRESH) {
 897                 ht = ((trackview.current_height()) / (double) nchans);
 898         } else {
 899                 ht = ((trackview.current_height() - NAME_HIGHLIGHT_SIZE) / (double) nchans);
 900         }
 901
 902         gdouble yoff = which * ht;
 903
 904         WaveView *wave = new WaveView(*group);
 905
 906         wave->property_data_src() = (gpointer) _region.get();
 907         wave->property_cache() =  wave_caches[which];
 908         wave->property_cache_updater() = true;
 909         wave->property_channel() =  which;
 910         wave->property_length_function() = (gpointer) region_length_from_c;
 911         wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
 912         wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
 913         wave->property_x() =  0.0;
 914         wave->property_y() =  yoff;
 915         wave->property_height() =  (double) ht;
 916         wave->property_samples_per_unit() =  samples_per_unit;
 917         wave->property_amplitude_above_axis() =  _amplitude_above_axis;
 918
 919         if (_recregion) {
 920                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
 921                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
 922         } else {
 923                 wave->property_wave_color() = _region->muted() ? UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA) : ARDOUR_UI::config()->canvasvar_WaveForm.get();
 924                 wave->property_fill_color() = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
 925         }
 926
 927         wave->property_clip_color() = ARDOUR_UI::config()->canvasvar_WaveFormClip.get();
 928         wave->property_zero_color() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
 929         wave->property_zero_line() = true;
 930         wave->property_region_start() = _region->start();
 931         wave->property_rectified() = (bool) (_flags & WaveformRectified);
 932         wave->property_logscaled() = (bool) (_flags & WaveformLogScaled);
 933
 934         if (!(_flags & WaveformVisible)) {
 935                 wave->hide();
 936         }
 937
 938         /* note: calling this function is serialized by the lock
 939            held in the peak building thread that signals that
 940            peaks are ready for use *or* by the fact that it is
 941            called one by one from the GUI thread.
 942         */
 943
 944         if (which < nchans) {
 945                 tmp_waves[which] = wave;
 946         } else {
 947                 /* n-channel track, >n-channel source */
 948         }
 949
 950         /* see if we're all ready */
 951
 952         for (n = 0; n < nchans; ++n) {
 953                 if (tmp_waves[n] == 0) {
 954                         break;
 955                 }
 956         }
 957
 958         if (n == nwaves && waves.empty()) {
 959                 /* all waves are ready */
 960                 tmp_waves.resize(nwaves);
 961
 962                 waves = tmp_waves;
 963                 tmp_waves.clear ();
 964
 965                 /* all waves created, don't hook into peaks ready anymore */
 966                 delete _data_ready_connections[which];
 967                 _data_ready_connections[which] = 0;
 968         }
 969 }
 970
 971 void
 972 AudioRegionView::peaks_ready_handler (uint32_t which)
 973 {
 974         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AudioRegionView::create_one_wave, this, which, false));
 975         // cerr << "AudioRegionView::peaks_ready_handler() called on " << which << " this: " << this << endl;
 976 }
 977
 978 void
 979 AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev)
 980 {
 981         if (gain_line == 0) {
 982                 return;
 983         }
 984
 985         double x, y;
 986
 987         /* don't create points that can't be seen */
 988
 989         set_envelope_visible (true);
 990
 991         x = ev->button.x;
 992         y = ev->button.y;
 993
 994         item->w2i (x, y);
 995
 996         framepos_t fx = trackview.editor().pixel_to_frame (x);
 997
 998         if (fx > _region->length()) {
 999                 return;
1000         }
1001
1002         /* compute vertical fractional position */
1003
1004         y = 1.0 - (y / (_height - NAME_HIGHLIGHT_SIZE));
1005
1006         /* map using gain line */
1007
1008         gain_line->view_to_model_coord (x, y);
1009
1010         /* XXX STATEFUL: can't convert to stateful diff until we
1011            can represent automation data with it.
1012         */
1013
1014         trackview.session()->begin_reversible_command (_("add gain control point"));
1015         XMLNode &before = audio_region()->envelope()->get_state();
1016
1017         if (!audio_region()->envelope_active()) {
1018                 XMLNode &region_before = audio_region()->get_state();
1019                 audio_region()->set_envelope_active(true);
1020                 XMLNode &region_after = audio_region()->get_state();
1021                 trackview.session()->add_command (new MementoCommand<AudioRegion>(*(audio_region().get()), &region_before, &region_after));
1022         }
1023
1024         audio_region()->envelope()->add (fx, y);
1025
1026         XMLNode &after = audio_region()->envelope()->get_state();
1027         trackview.session()->add_command (new MementoCommand<AutomationList>(*audio_region()->envelope().get(), &before, &after));
1028         trackview.session()->commit_reversible_command ();
1029 }
1030
1031 void
1032 AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent */*ev*/)
1033 {
1034         ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point"));
1035         audio_region()->envelope()->erase (cp->model());
1036 }
1037
1038 void
1039 AudioRegionView::store_flags()
1040 {
1041         XMLNode *node = new XMLNode ("GUI");
1042
1043         node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no");
1044         node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no");
1045         node->add_property ("waveform-rectified", (_flags & WaveformRectified) ? "yes" : "no");
1046         node->add_property ("waveform-logscaled", (_flags & WaveformLogScaled) ? "yes" : "no");
1047
1048         _region->add_extra_xml (*node);
1049 }
1050
1051 void
1052 AudioRegionView::set_flags (XMLNode* node)
1053 {
1054         XMLProperty *prop;
1055
1056         if ((prop = node->property ("waveform-visible")) != 0) {
1057                 if (string_is_affirmative (prop->value())) {
1058                         _flags |= WaveformVisible;
1059                 }
1060         }
1061
1062         if ((prop = node->property ("envelope-visible")) != 0) {
1063                 if (string_is_affirmative (prop->value())) {
1064                         _flags |= EnvelopeVisible;
1065                 }
1066         }
1067
1068         if ((prop = node->property ("waveform-rectified")) != 0) {
1069                 if (string_is_affirmative (prop->value())) {
1070                         _flags |= WaveformRectified;
1071                 }
1072         }
1073
1074         if ((prop = node->property ("waveform-logscaled")) != 0) {
1075                 if (string_is_affirmative (prop->value())) {
1076                         _flags |= WaveformLogScaled;
1077                 }
1078         }
1079 }
1080
1081 void
1082 AudioRegionView::set_waveform_shape (WaveformShape shape)
1083 {
1084         bool yn;
1085
1086         /* this slightly odd approach is to leave the door open to
1087            other "shapes" such as spectral displays, etc.
1088         */
1089
1090         switch (shape) {
1091         case Rectified:
1092                 yn = true;
1093                 break;
1094
1095         default:
1096                 yn = false;
1097                 break;
1098         }
1099
1100         if (yn != (bool) (_flags & WaveformRectified)) {
1101                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1102                         (*wave)->property_rectified() = yn;
1103                 }
1104
1105                 if (yn) {
1106                         _flags |= WaveformRectified;
1107                 } else {
1108                         _flags &= ~WaveformRectified;
1109                 }
1110                 store_flags ();
1111         }
1112 }
1113
1114 void
1115 AudioRegionView::set_waveform_scale (WaveformScale scale)
1116 {
1117         bool yn = (scale == Logarithmic);
1118
1119         if (yn != (bool) (_flags & WaveformLogScaled)) {
1120                 for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) {
1121                         (*wave)->property_logscaled() = yn;
1122                 }
1123
1124                 if (yn) {
1125                         _flags |= WaveformLogScaled;
1126                 } else {
1127                         _flags &= ~WaveformLogScaled;
1128                 }
1129                 store_flags ();
1130         }
1131 }
1132
1133
1134 GhostRegion*
1135 AudioRegionView::add_ghost (TimeAxisView& tv)
1136 {
1137         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
1138         assert(rtv);
1139
1140         double unit_position = _region->position () / samples_per_unit;
1141         AudioGhostRegion* ghost = new AudioGhostRegion (tv, trackview, unit_position);
1142         uint32_t nchans;
1143
1144         nchans = rtv->track()->n_channels().n_audio();
1145
1146         for (uint32_t n = 0; n < nchans; ++n) {
1147
1148                 if (n >= audio_region()->n_channels()) {
1149                         break;
1150                 }
1151
1152                 WaveView *wave = new WaveView(*ghost->group);
1153
1154                 wave->property_data_src() = _region.get();
1155                 wave->property_cache() =  wave_caches[n];
1156                 wave->property_cache_updater() = false;
1157                 wave->property_channel() = n;
1158                 wave->property_length_function() = (gpointer)region_length_from_c;
1159                 wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c;
1160                 wave->property_peak_function() =  (gpointer) region_read_peaks_from_c;
1161                 wave->property_x() =  0.0;
1162                 wave->property_samples_per_unit() =  samples_per_unit;
1163                 wave->property_amplitude_above_axis() =  _amplitude_above_axis;
1164
1165                 wave->property_region_start() = _region->start();
1166
1167                 ghost->waves.push_back(wave);
1168         }
1169
1170         ghost->set_height ();
1171         ghost->set_duration (_region->length() / samples_per_unit);
1172         ghost->set_colors();
1173         ghosts.push_back (ghost);
1174
1175         return ghost;
1176 }
1177
1178 void
1179 AudioRegionView::entered (bool internal_editing)
1180 {
1181         trackview.editor().set_current_trimmable (_region);
1182         trackview.editor().set_current_movable (_region);
1183
1184         if (gain_line && _flags & EnvelopeVisible) {
1185                 gain_line->show_all_control_points ();
1186         }
1187
1188         if (fade_in_handle && !internal_editing) {
1189                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1190                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 255);
1191         }
1192 }
1193
1194 void
1195 AudioRegionView::exited ()
1196 {
1197         trackview.editor().set_current_trimmable (boost::shared_ptr<Trimmable>());
1198         trackview.editor().set_current_movable (boost::shared_ptr<Movable>());
1199
1200         if (gain_line) {
1201                 gain_line->hide_all_but_selected_control_points ();
1202         }
1203
1204         if (fade_in_handle) {
1205                 fade_in_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1206                 fade_out_handle->property_fill_color_rgba() = UINT_RGBA_CHANGE_A (fade_color, 0);
1207         }
1208 }
1209
1210 void
1211 AudioRegionView::envelope_active_changed ()
1212 {
1213         if (gain_line) {
1214                 gain_line->set_line_color (audio_region()->envelope_active() ? ARDOUR_UI::config()->canvasvar_GainLine.get() : ARDOUR_UI::config()->canvasvar_GainLineInactive.get());
1215         }
1216 }
1217
1218 void
1219 AudioRegionView::set_waveview_data_src()
1220 {
1221         AudioGhostRegion* agr;
1222         double unit_length= _region->length() / samples_per_unit;
1223
1224         for (uint32_t n = 0; n < waves.size(); ++n) {
1225                 // TODO: something else to let it know the channel
1226                 waves[n]->property_data_src() = _region.get();
1227         }
1228
1229         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1230
1231                 (*i)->set_duration (unit_length);
1232
1233                 if((agr = dynamic_cast<AudioGhostRegion*>(*i)) != 0) {
1234                         for (vector<WaveView*>::iterator w = agr->waves.begin(); w != agr->waves.end(); ++w) {
1235                                 (*w)->property_data_src() = _region.get();
1236                         }
1237                 }
1238         }
1239
1240 }
1241
1242 void
1243 AudioRegionView::color_handler ()
1244 {
1245         //case cMutedWaveForm:
1246         //case cWaveForm:
1247         //case cWaveFormClip:
1248         //case cZeroLine:
1249         set_colors ();
1250
1251         //case cGainLineInactive:
1252         //case cGainLine:
1253         envelope_active_changed();
1254
1255 }
1256
1257 void
1258 AudioRegionView::set_frame_color ()
1259 {
1260         if (!frame) {
1261                 return;
1262         }
1263
1264         if (_region->opaque()) {
1265                 fill_opacity = 130;
1266         } else {
1267                 fill_opacity = 0;
1268         }
1269
1270         TimeAxisViewItem::set_frame_color ();
1271
1272         uint32_t wc;
1273         uint32_t fc;
1274
1275         if (_selected) {
1276                 if (_region->muted()) {
1277                         wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get(), MUTED_ALPHA);
1278                 } else {
1279                         wc = ARDOUR_UI::config()->canvasvar_SelectedWaveForm.get();
1280                 }
1281                 fc = ARDOUR_UI::config()->canvasvar_SelectedWaveFormFill.get();
1282         } else {
1283                 if (_recregion) {
1284                         if (_region->muted()) {
1285                                 wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_RecWaveForm.get(), MUTED_ALPHA);
1286                         } else {
1287                                 wc = ARDOUR_UI::config()->canvasvar_RecWaveForm.get();
1288                         }
1289                         fc = ARDOUR_UI::config()->canvasvar_RecWaveFormFill.get();
1290                 } else {
1291                         if (_region->muted()) {
1292                                 wc = UINT_RGBA_CHANGE_A(ARDOUR_UI::config()->canvasvar_WaveForm.get(), MUTED_ALPHA);
1293                         } else {
1294                                 wc = ARDOUR_UI::config()->canvasvar_WaveForm.get();
1295                         }
1296                         fc = ARDOUR_UI::config()->canvasvar_WaveFormFill.get();
1297                 }
1298         }
1299
1300         for (vector<ArdourCanvas::WaveView*>::iterator w = waves.begin(); w != waves.end(); ++w) {
1301                 if (_region->muted()) {
1302                         (*w)->property_wave_color() = wc;
1303                 } else {
1304                         (*w)->property_wave_color() = wc;
1305                         (*w)->property_fill_color() = fc;
1306                 }
1307         }
1308 }
1309
1310 void
1311 AudioRegionView::set_fade_visibility (bool yn)
1312 {
1313         if (yn) {
1314                 if (fade_in_shape) {
1315                         fade_in_shape->show();
1316                 }
1317                 if (fade_out_shape) {
1318                         fade_out_shape->show ();
1319                 }
1320                 if (fade_in_handle) {
1321                         fade_in_handle->show ();
1322                 }
1323                 if (fade_out_handle) {
1324                         fade_out_handle->show ();
1325                 }
1326         } else {
1327                 if (fade_in_shape) {
1328                         fade_in_shape->hide();
1329                 }
1330                 if (fade_out_shape) {
1331                         fade_out_shape->hide ();
1332                 }
1333                 if (fade_in_handle) {
1334                         fade_in_handle->hide ();
1335                 }
1336                 if (fade_out_handle) {
1337                         fade_out_handle->hide ();
1338                 }
1339         }
1340 }
1341
1342 void
1343 AudioRegionView::update_coverage_frames (LayerDisplay d)
1344 {
1345         RegionView::update_coverage_frames (d);
1346
1347         if (fade_in_handle) {
1348                 fade_in_handle->raise_to_top ();
1349                 fade_out_handle->raise_to_top ();
1350         }
1351 }
1352
1353 void
1354 AudioRegionView::show_region_editor ()
1355 {
1356         if (editor == 0) {
1357                 editor = new AudioRegionEditor (trackview.session(), audio_region());
1358         }
1359
1360         editor->present ();
1361         editor->set_position (Gtk::WIN_POS_MOUSE);
1362         editor->show_all();
1363 }
1364
1365
1366 void
1367 AudioRegionView::show_fade_line (framepos_t pos)
1368 {
1369         fade_position_line->property_x1() = trackview.editor().frame_to_pixel (pos);
1370         fade_position_line->property_x2() = trackview.editor().frame_to_pixel (pos);
1371         fade_position_line->show ();
1372         fade_position_line->raise_to_top ();
1373 }
1374
1375 void
1376 AudioRegionView::hide_fade_line ()
1377 {
1378         fade_position_line->hide ();
1379 }
1380
1381
1382 void
1383 AudioRegionView::transients_changed ()
1384 {
1385         AnalysisFeatureList analysis_features = _region->transients();
1386
1387         while (feature_lines.size() < analysis_features.size()) {
1388
1389                 ArdourCanvas::Line* canvas_item = new ArdourCanvas::Line(*group);
1390
1391                 ArdourCanvas::Points points;
1392
1393                 points.push_back(Gnome::Art::Point(-1.0, 2.0)); // first x-coord needs to be a non-normal value
1394                 points.push_back(Gnome::Art::Point(1.0, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
1395
1396                 canvas_item->property_points() = points;
1397                 canvas_item->property_width_pixels() = 1;
1398                 canvas_item->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1399                 canvas_item->property_first_arrowhead() = TRUE;
1400                 canvas_item->property_last_arrowhead() = TRUE;
1401                 canvas_item->property_arrow_shape_a() = 11.0;
1402                 canvas_item->property_arrow_shape_b() = 0.0;
1403                 canvas_item->property_arrow_shape_c() = 4.0;
1404
1405                 canvas_item->raise_to_top ();
1406                 canvas_item->show ();
1407
1408                 canvas_item->set_data ("regionview", this);
1409                 canvas_item->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_feature_line_event), canvas_item, this));
1410
1411                 feature_lines.push_back (make_pair(0, canvas_item));
1412         }
1413
1414         while (feature_lines.size() > analysis_features.size()) {
1415                 ArdourCanvas::Line* line = feature_lines.back().second;
1416                 feature_lines.pop_back ();
1417                 delete line;
1418         }
1419
1420         AnalysisFeatureList::const_iterator i;
1421         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1422
1423         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1424
1425                 ArdourCanvas::Points points;
1426
1427                 float *pos = new float;
1428                 *pos = trackview.editor().frame_to_pixel (*i);
1429
1430                 points.push_back(Gnome::Art::Point(*pos, 2.0)); // first x-coord needs to be a non-normal value
1431                 points.push_back(Gnome::Art::Point(*pos, _height - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 1));
1432
1433                 (*l).second->property_points() = points;
1434                 (*l).second->set_data ("position", pos);
1435
1436                 (*l).first = *i;
1437         }
1438 }
1439
1440 void
1441 AudioRegionView::update_transient(float /*old_pos*/, float new_pos)
1442 {
1443         /* Find frame at old pos, calulate new frame then update region transients*/
1444         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1445
1446         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1447
1448                 /* Line has been updated in drag so we compare to new_pos */
1449
1450                 float* pos = (float*) (*l).second->get_data ("position");
1451
1452                 if (rint(new_pos) == rint(*pos)) {
1453
1454                     framepos_t old_frame = (*l).first;
1455                     framepos_t new_frame = trackview.editor().pixel_to_frame (new_pos);
1456
1457                     _region->update_transient (old_frame, new_frame);
1458
1459                     break;
1460                 }
1461         }
1462 }
1463
1464 void
1465 AudioRegionView::remove_transient(float pos)
1466 {
1467         /* Find frame at old pos, calulate new frame then update region transients*/
1468         list<std::pair<framepos_t, ArdourCanvas::Line*> >::iterator l;
1469
1470         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1471
1472                 /* Line has been updated in drag so we compare to new_pos */
1473                 float *line_pos = (float*) (*l).second->get_data ("position");
1474
1475                 if (rint(pos) == rint(*line_pos)) {
1476                     _region->remove_transient ((*l).first);
1477                     break;
1478                 }
1479         }
1480 }
1481
1482 void
1483 AudioRegionView::thaw_after_trim ()
1484 {
1485         RegionView::thaw_after_trim ();
1486
1487         unhide_envelope ();
1488 }