gtk2_ardour/time_axis_view.cc

   1  /*
   2      Copyright (C) 2000 Paul Davis
   3
   4      This program is free software; you can redistribute 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
  20  #include <cstdlib>
  21  #include <cmath>
  22  #include <algorithm>
  23  #include <string>
  24  #include <list>
  25
  26  #include <libgnomecanvasmm.h>
  27  #include <libgnomecanvasmm/canvas.h>
  28  #include <libgnomecanvasmm/item.h>
  29
  30  #include <pbd/error.h>
  31
  32  #include <gtkmm2ext/utils.h>
  33  #include <gtkmm2ext/selector.h>
  34  #include <gtkmm2ext/stop_signal.h>
  35
  36  #include <ardour/session.h>
  37  #include <ardour/utils.h>
  38  #include <ardour/ladspa_plugin.h>
  39  #include <ardour/processor.h>
  40  #include <ardour/location.h>
  41
  42  #include "ardour_ui.h"
  43  #include "public_editor.h"
  44  #include "time_axis_view.h"
  45  #include "region_view.h"
  46  #include "ghostregion.h"
  47  #include "simplerect.h"
  48  #include "simpleline.h"
  49  #include "selection.h"
  50  #include "keyboard.h"
  51  #include "rgb_macros.h"
  52  #include "utils.h"
  53  #include "streamview.h"
  54
  55  #include "i18n.h"
  56
  57  using namespace Gtk;
  58  using namespace Gdk;
  59  using namespace sigc;
  60  using namespace ARDOUR;
  61  using namespace PBD;
  62  using namespace Editing;
  63  using namespace ArdourCanvas;
  64
  65  const double trim_handle_size = 6.0; /* pixels */
  66
  67  uint32_t TimeAxisView::hLargest = 0;
  68  uint32_t TimeAxisView::hLarge = 0;
  69  uint32_t TimeAxisView::hLarger = 0;
  70  uint32_t TimeAxisView::hNormal = 0;
  71  uint32_t TimeAxisView::hSmaller = 0;
  72  uint32_t TimeAxisView::hSmall = 0;
  73  bool TimeAxisView::need_size_info = true;
  74  int const TimeAxisView::_max_order = 512;
  75
  76  TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  77          : AxisView (sess),
  78            controls_table (2, 8),
  79            _y_position (0),
  80            _editor (ed),
  81            _order (0)
  82  {
  83          if (need_size_info) {
  84                  compute_controls_size_info ();
  85                  need_size_info = false;
  86          }
  87          _canvas_background = new Group (*ed.get_background_group (), 0.0, 0.0);
  88          _canvas_display = new Group (*ed.get_trackview_group (), 0.0, 0.0);
  89
  90          selection_group = new Group (*_canvas_display);
  91          selection_group->hide();
  92
  93          _ghost_group = new Group (*_canvas_display);
  94          _ghost_group->lower_to_bottom();
  95          _ghost_group->show();
  96
  97          control_parent = 0;
  98          display_menu = 0;
  99          size_menu = 0;
 100          _hidden = false;
 101          in_destructor = false;
 102          height = 0;
 103          _effective_height = 0;
 104          parent = rent;
 105          _has_state = false;
 106          last_name_entry_key_press_event = 0;
 107          name_packing = NamePackingBits (0);
 108          _resize_drag_start = -1;
 109
 110          /*
 111            Create the standard LHS Controls
 112            We create the top-level container and name add the name label here,
 113            subclasses can add to the layout as required
 114          */
 115
 116          name_entry.set_name ("EditorTrackNameDisplay");
 117          name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 118          name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 119          name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 120          name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 121          name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 122          name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 123          Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 124
 125          name_label.set_name ("TrackLabel");
 126          name_label.set_alignment (0.0, 0.5);
 127
 128          /* typically, either name_label OR name_entry are visible,
 129             but not both. its up to derived classes to show/hide them as they
 130             wish.
 131          */
 132
 133          name_hbox.show ();
 134
 135          controls_table.set_border_width (2);
 136          controls_table.set_row_spacings (0);
 137          controls_table.set_col_spacings (0);
 138          controls_table.set_homogeneous (true);
 139
 140          controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 141          controls_table.show_all ();
 142          controls_table.set_no_show_all ();
 143
 144          resizer.set_size_request (10, 10);
 145          resizer.set_name ("ResizeHandle");
 146          resizer.signal_expose_event().connect (mem_fun (*this, &TimeAxisView::resizer_expose));
 147          resizer.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_press));
 148          resizer.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_release));
 149          resizer.signal_motion_notify_event().connect (mem_fun (*this, &TimeAxisView::resizer_motion));
 150          resizer.set_events (Gdk::BUTTON_PRESS_MASK|
 151                              Gdk::BUTTON_RELEASE_MASK|
 152                              Gdk::POINTER_MOTION_MASK|
 153                              Gdk::SCROLL_MASK);
 154
 155          resizer_box.pack_start (resizer, false, false);
 156          resizer.show ();
 157          resizer_box.show();
 158
 159          HSeparator* separator = manage (new HSeparator());
 160
 161          controls_vbox.pack_start (controls_table, false, false);
 162          controls_vbox.pack_end (*separator, false, false);
 163          controls_vbox.pack_end (resizer_box, false, true);
 164          controls_vbox.show ();
 165
 166          //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 167          controls_ebox.add (controls_vbox);
 168          controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 169          controls_ebox.set_flags (CAN_FOCUS);
 170
 171          controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 172          controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 173
 174          controls_hbox.pack_start (controls_ebox,true,true);
 175          controls_hbox.show ();
 176
 177          // controls_frame.add (controls_hbox);
 178          // controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 179          // controls_vbox.set_name ("TimeAxisViewControlsBaseUnselected");
 180          // controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 181
 182          ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 183  }
 184
 185  TimeAxisView::~TimeAxisView()
 186  {
 187          in_destructor = true;
 188
 189          for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 190                  delete *i;
 191          }
 192
 193          for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 194                  delete (*i)->rect;
 195                  delete (*i)->start_trim;
 196                  delete (*i)->end_trim;
 197
 198          }
 199
 200          for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 201                  delete (*i)->rect;
 202                  delete (*i)->start_trim;
 203                  delete (*i)->end_trim;
 204          }
 205
 206          for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 207                  delete (*i);
 208          }
 209
 210          delete selection_group;
 211          selection_group = 0;
 212
 213          delete _canvas_background;
 214          _canvas_background = 0;
 215
 216          delete _canvas_display;
 217          _canvas_display = 0;
 218
 219          delete display_menu;
 220          display_menu = 0;
 221  }
 222
 223 /** Display this TimeAxisView as the nth component of the parent box, at y.
 224  *
 225  * @param y y position.
 226  * @param nth index for this TimeAxisView, increased if this view has children.
 227  * @param parent parent component.
 228  * @return height of this TimeAxisView.
 229  */
 230  guint32
 231  TimeAxisView::show_at (double y, int& nth, VBox *parent)
 232  {
 233          if (control_parent) {
 234                  control_parent->reorder_child (controls_hbox, nth);
 235          } else {
 236                  control_parent = parent;
 237                  parent->pack_start (controls_hbox, false, false);
 238                  parent->reorder_child (controls_hbox, nth);
 239          }
 240
 241          _order = nth;
 242
 243          if (_y_position != y) {
 244                  _canvas_display->property_y () = y;
 245                  _canvas_background->property_y () = y;
 246                  /* silly canvas */
 247                  _canvas_display->move (0.0, 0.0);
 248                  _canvas_background->move (0.0, 0.0);
 249                  _y_position = y;
 250
 251          }
 252
 253          _canvas_background->raise_to_top ();
 254          _canvas_display->raise_to_top ();
 255
 256          if (_marked_for_display) {
 257                  controls_hbox.show ();
 258                  controls_ebox.show ();
 259                  _canvas_background->show ();
 260          }
 261
 262          _hidden = false;
 263
 264          _effective_height = current_height ();
 265
 266          /* now show children */
 267
 268          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 269                  if (canvas_item_visible ((*i)->_canvas_display)) {
 270                          ++nth;
 271                          _effective_height += (*i)->show_at (y + _effective_height, nth, parent);
 272                  }
 273          }
 274
 275          return _effective_height;
 276  }
 277
 278  void
 279  TimeAxisView::clip_to_viewport ()
 280  {
 281          if (_marked_for_display) {
 282                  if (_y_position + _effective_height < _editor.get_trackview_group_vertical_offset () || _y_position > _editor.get_trackview_group_vertical_offset () + _canvas_display->get_canvas()->get_height()) {
 283                          _canvas_background->hide ();
 284                          _canvas_display->hide ();
 285                          return;
 286                  }
 287                  _canvas_background->show ();
 288                  _canvas_display->show ();
 289          }
 290          return;
 291  }
 292
 293  bool
 294  TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 295  {
 296          switch (ev->direction) {
 297          case GDK_SCROLL_UP:
 298                  if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 299                          step_height (true);
 300                          return true;
 301                  } else if (Keyboard::no_modifiers_active (ev->state)) {
 302                          _editor.scroll_tracks_up_line();
 303                          return true;
 304                  }
 305                  break;
 306
 307          case GDK_SCROLL_DOWN:
 308                  if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 309                          step_height (false);
 310                          return true;
 311                  } else if (Keyboard::no_modifiers_active (ev->state)) {
 312                          _editor.scroll_tracks_down_line();
 313                          return true;
 314                  }
 315                  break;
 316
 317          default:
 318                  /* no handling for left/right, yet */
 319                  break;
 320          }
 321
 322          return false;
 323  }
 324
 325  bool
 326  TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 327  {
 328          switch (ev->button) {
 329          case 1:
 330                  selection_click (ev);
 331                  break;
 332
 333          case 3:
 334                  popup_display_menu (ev->time);
 335                  break;
 336          }
 337
 338          return true;
 339  }
 340
 341  void
 342  TimeAxisView::selection_click (GdkEventButton* ev)
 343  {
 344          Selection::Operation op = Keyboard::selection_type (ev->state);
 345          _editor.set_selected_track (*this, op, false);
 346  }
 347
 348  void
 349  TimeAxisView::hide ()
 350  {
 351          if (_hidden) {
 352                  return;
 353          }
 354
 355          _canvas_display->hide ();
 356          _canvas_background->hide ();
 357          controls_frame.hide ();
 358
 359          if (control_parent) {
 360                  control_parent->remove (controls_hbox);
 361                  control_parent = 0;
 362          }
 363
 364          _y_position = -1;
 365          _hidden = true;
 366
 367          /* now hide children */
 368
 369          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 370                  (*i)->hide ();
 371          }
 372
 373          /* if its hidden, it cannot be selected */
 374
 375          _editor.get_selection().remove (this);
 376
 377          Hiding ();
 378  }
 379
 380  void
 381  TimeAxisView::step_height (bool bigger)
 382  {
 383          static const uint32_t step = 20;
 384
 385          if (bigger) {
 386                  set_height (height + step);
 387          } else {
 388                  if (height > step) {
 389                          set_height (std::max (height - step, hSmall));
 390                  } else if (height != hSmall) {
 391                          set_height (hSmall);
 392                  }
 393          }
 394  }
 395
 396  void
 397  TimeAxisView::set_heights (uint32_t h)
 398  {
 399          TrackSelection& ts (_editor.get_selection().tracks);
 400
 401          for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 402                  (*i)->set_height (h);
 403          }
 404  }
 405
 406  void
 407  TimeAxisView::set_height(uint32_t h)
 408  {
 409          controls_ebox.property_height_request () = h;
 410          height = h;
 411
 412          for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 413                  (*i)->set_height ();
 414          }
 415
 416          if (canvas_item_visible (selection_group)) {
 417                  /* resize the selection rect */
 418                  show_selection (_editor.get_selection().time);
 419          }
 420
 421          reshow_feature_lines ();
 422  }
 423
 424  bool
 425  TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 426  {
 427          PublicEditor::TrackViewList *allviews = 0;
 428          PublicEditor::TrackViewList::iterator i;
 429
 430          switch (ev->keyval) {
 431          case GDK_Escape:
 432                  name_entry.select_region (0,0);
 433                  controls_ebox.grab_focus ();
 434                  name_entry_changed ();
 435                  return true;
 436
 437          /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 438           * generates a different ev->keyval, rather than setting
 439           * ev->state.
 440           */
 441          case GDK_ISO_Left_Tab:
 442          case GDK_Tab:
 443                  name_entry_changed ();
 444                  allviews = _editor.get_valid_views (0);
 445                  if (allviews != 0) {
 446                          i = find (allviews->begin(), allviews->end(), this);
 447                          if (ev->keyval == GDK_Tab) {
 448                                  if (i != allviews->end()) {
 449                                          do {
 450                                                  if (++i == allviews->end()) { return true; }
 451                                          } while((*i)->hidden());
 452                                  }
 453                          } else {
 454                                  if (i != allviews->begin()) {
 455                                          do {
 456                                                  if (--i == allviews->begin()) { return true; }
 457                                          } while ((*i)->hidden());
 458                                  }
 459                          }
 460
 461
 462                          /* resize to show editable name display */
 463
 464                          if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 465                                  (*i)->set_height (hSmaller);
 466                          }
 467
 468                          (*i)->name_entry.grab_focus();
 469                  }
 470                  return true;
 471
 472          case GDK_Up:
 473          case GDK_Down:
 474                  name_entry_changed ();
 475                  return true;
 476
 477          default:
 478                  break;
 479          }
 480
 481  #ifdef TIMEOUT_NAME_EDIT
 482          /* adapt the timeout to reflect the user's typing speed */
 483
 484          guint32 name_entry_timeout;
 485
 486          if (last_name_entry_key_press_event) {
 487                  /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 488                  name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 489          } else {
 490                  /* start with a 1 second timeout */
 491                  name_entry_timeout = 1000;
 492          }
 493
 494          last_name_entry_key_press_event = ev->time;
 495
 496          /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 497
 498          name_entry_key_timeout.disconnect();
 499          name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 500  #endif
 501
 502          return false;
 503  }
 504
 505  bool
 506  TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 507  {
 508          name_entry.select_region (0, -1);
 509          name_entry.set_name ("EditorActiveTrackNameDisplay");
 510          return false;
 511  }
 512
 513  bool
 514  TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 515  {
 516          /* clean up */
 517
 518          last_name_entry_key_press_event = 0;
 519          name_entry_key_timeout.disconnect ();
 520          name_entry.set_name ("EditorTrackNameDisplay");
 521          name_entry.select_region (0,0);
 522
 523          /* do the real stuff */
 524
 525          name_entry_changed ();
 526
 527          return false;
 528  }
 529
 530  bool
 531  TimeAxisView::name_entry_key_timed_out ()
 532  {
 533          name_entry_activated();
 534          return false;
 535  }
 536
 537  void
 538  TimeAxisView::name_entry_activated ()
 539  {
 540          controls_ebox.grab_focus();
 541  }
 542
 543  void
 544  TimeAxisView::name_entry_changed ()
 545  {
 546  }
 547
 548  bool
 549  TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 550  {
 551          if (ev->button == 3) {
 552                  return true;
 553          }
 554          return false;
 555  }
 556
 557  bool
 558  TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 559  {
 560          if (ev->button == 3) {
 561                  popup_display_menu (ev->time);
 562                  return true;
 563          }
 564          return false;
 565  }
 566
 567  void
 568  TimeAxisView::conditionally_add_to_selection ()
 569  {
 570          Selection& s (_editor.get_selection ());
 571
 572          if (!s.selected (this)) {
 573                  _editor.set_selected_track (*this, Selection::Set);
 574          }
 575  }
 576
 577  void
 578  TimeAxisView::popup_display_menu (guint32 when)
 579  {
 580          if (display_menu == 0) {
 581                  build_display_menu ();
 582          }
 583
 584          conditionally_add_to_selection ();
 585          display_menu->popup (1, when);
 586  }
 587
 588  gint
 589  TimeAxisView::size_click (GdkEventButton *ev)
 590  {
 591          conditionally_add_to_selection ();
 592          popup_size_menu (ev->time);
 593          return TRUE;
 594  }
 595
 596  void
 597  TimeAxisView::popup_size_menu (guint32 when)
 598  {
 599          if (size_menu == 0) {
 600                  build_size_menu ();
 601          }
 602          size_menu->popup (1, when);
 603  }
 604
 605  void
 606  TimeAxisView::set_selected (bool yn)
 607  {
 608          if (yn == _selected) {
 609                  return;
 610          }
 611
 612          Selectable::set_selected (yn);
 613
 614          if (_selected) {
 615                  controls_ebox.set_name (controls_base_selected_name);
 616                  controls_hbox.set_name (controls_base_selected_name);
 617                  controls_vbox.set_name (controls_base_selected_name);
 618                  /* propagate any existing selection, if the mode is right */
 619
 620                  if (_editor.current_mouse_mode() == Editing::MouseRange && !_editor.get_selection().time.empty()) {
 621                          show_selection (_editor.get_selection().time);
 622                  }
 623
 624          } else {
 625                  controls_ebox.set_name (controls_base_unselected_name);
 626                  controls_hbox.set_name (controls_base_unselected_name);
 627                  controls_vbox.set_name (controls_base_unselected_name);
 628                  hide_selection ();
 629
 630                  /* children will be set for the yn=true case. but when deselecting
 631                     the editor only has a list of top-level trackviews, so we
 632                     have to do this here.
 633                  */
 634
 635                  for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 636                          (*i)->set_selected (false);
 637                  }
 638          }
 639
 640          resizer.queue_draw ();
 641  }
 642
 643  void
 644  TimeAxisView::build_size_menu ()
 645  {
 646          using namespace Menu_Helpers;
 647
 648          size_menu = new Menu;
 649          size_menu->set_name ("ArdourContextMenu");
 650          MenuList& items = size_menu->items();
 651
 652          items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 653          items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 654          items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 655          items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 656          items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 657          items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 658  }
 659
 660  void
 661  TimeAxisView::build_display_menu ()
 662  {
 663          using namespace Menu_Helpers;
 664
 665          display_menu = new Menu;
 666          display_menu->set_name ("ArdourContextMenu");
 667
 668          // Just let implementing classes define what goes into the manu
 669  }
 670
 671  void
 672  TimeAxisView::set_samples_per_unit (double spu)
 673  {
 674          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 675                  (*i)->set_samples_per_unit (spu);
 676          }
 677
 678          AnalysisFeatureList::const_iterator i;
 679          list<ArdourCanvas::SimpleLine*>::iterator l;
 680
 681          for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 682                  (*l)->property_x1() = _editor.frame_to_pixel (*i);
 683                  (*l)->property_x2() = _editor.frame_to_pixel (*i);
 684          }
 685  }
 686
 687  void
 688  TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 689  {
 690          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 691                  (*i)->show_timestretch (start, end);
 692          }
 693  }
 694
 695  void
 696  TimeAxisView::hide_timestretch ()
 697  {
 698          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 699                  (*i)->hide_timestretch ();
 700          }
 701  }
 702
 703  void
 704  TimeAxisView::show_selection (TimeSelection& ts)
 705  {
 706          double x1;
 707          double x2;
 708          double y2;
 709          SelectionRect *rect;
 710
 711          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 712                  (*i)->show_selection (ts);
 713          }
 714
 715          if (canvas_item_visible (selection_group)) {
 716                  while (!used_selection_rects.empty()) {
 717                          free_selection_rects.push_front (used_selection_rects.front());
 718                          used_selection_rects.pop_front();
 719                          free_selection_rects.front()->rect->hide();
 720                          free_selection_rects.front()->start_trim->hide();
 721                          free_selection_rects.front()->end_trim->hide();
 722                  }
 723                  selection_group->hide();
 724          }
 725
 726          selection_group->show();
 727          selection_group->raise_to_top();
 728
 729          for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 730                  nframes_t start, end, cnt;
 731
 732                  start = (*i).start;
 733                  end = (*i).end;
 734                  cnt = end - start + 1;
 735
 736                  rect = get_selection_rect ((*i).id);
 737
 738                  x1 = _editor.frame_to_unit (start);
 739                  x2 = _editor.frame_to_unit (start + cnt - 1);
 740                  y2 = current_height();
 741
 742                  rect->rect->property_x1() = x1;
 743                  rect->rect->property_y1() = 1.0;
 744                  rect->rect->property_x2() = x2;
 745                  rect->rect->property_y2() = y2;
 746
 747                  // trim boxes are at the top for selections
 748
 749                  if (x2 > x1) {
 750                          rect->start_trim->property_x1() = x1;
 751                          rect->start_trim->property_y1() = 1.0;
 752                          rect->start_trim->property_x2() = x1 + trim_handle_size;
 753                          rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 754
 755                          rect->end_trim->property_x1() = x2 - trim_handle_size;
 756                          rect->end_trim->property_y1() = 1.0;
 757                          rect->end_trim->property_x2() = x2;
 758                          rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 759
 760                          rect->start_trim->show();
 761                          rect->end_trim->show();
 762                  } else {
 763                          rect->start_trim->hide();
 764                          rect->end_trim->hide();
 765                  }
 766
 767                  rect->rect->show ();
 768                  used_selection_rects.push_back (rect);
 769          }
 770  }
 771
 772  void
 773  TimeAxisView::reshow_selection (TimeSelection& ts)
 774  {
 775          show_selection (ts);
 776
 777          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 778                  (*i)->show_selection (ts);
 779          }
 780  }
 781
 782  void
 783  TimeAxisView::hide_selection ()
 784  {
 785          if (canvas_item_visible (selection_group)) {
 786                  while (!used_selection_rects.empty()) {
 787                          free_selection_rects.push_front (used_selection_rects.front());
 788                          used_selection_rects.pop_front();
 789                          free_selection_rects.front()->rect->hide();
 790                          free_selection_rects.front()->start_trim->hide();
 791                          free_selection_rects.front()->end_trim->hide();
 792                  }
 793                  selection_group->hide();
 794          }
 795
 796          for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 797                  (*i)->hide_selection ();
 798          }
 799  }
 800
 801  void
 802  TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 803  {
 804          /* find the selection rect this is for. we have the item corresponding to one
 805             of the trim handles.
 806           */
 807
 808          for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 809                  if ((*i)->start_trim == item || (*i)->end_trim == item) {
 810
 811                          /* make one trim handle be "above" the other so that if they overlap,
 812                             the top one is the one last used.
 813                          */
 814
 815                          (*i)->rect->raise_to_top ();
 816                          (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 817                          (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 818
 819                          break;
 820                  }
 821          }
 822  }
 823
 824  SelectionRect *
 825  TimeAxisView::get_selection_rect (uint32_t id)
 826  {
 827          SelectionRect *rect;
 828
 829          /* check to see if we already have a visible rect for this particular selection ID */
 830
 831          for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 832                  if ((*i)->id == id) {
 833                          return (*i);
 834                  }
 835          }
 836
 837          /* ditto for the free rect list */
 838
 839          for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 840                  if ((*i)->id == id) {
 841                          SelectionRect* ret = (*i);
 842                          free_selection_rects.erase (i);
 843                          return ret;
 844                  }
 845          }
 846
 847          /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 848
 849          if (free_selection_rects.empty()) {
 850
 851                  rect = new SelectionRect;
 852
 853                  rect->rect = new SimpleRect (*selection_group);
 854                  rect->rect->property_x1() = 0.0;
 855                  rect->rect->property_y1() = 0.0;
 856                  rect->rect->property_x2() = 0.0;
 857                  rect->rect->property_y2() = 0.0;
 858                  rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 859                  rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 860
 861                  rect->start_trim = new SimpleRect (*selection_group);
 862                  rect->start_trim->property_x1() = 0.0;
 863                  rect->start_trim->property_x2() = 0.0;
 864                  rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 865                  rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 866
 867                  rect->end_trim = new SimpleRect (*selection_group);
 868                  rect->end_trim->property_x1() = 0.0;
 869                  rect->end_trim->property_x2() = 0.0;
 870                  rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 871                  rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 872
 873                  free_selection_rects.push_front (rect);
 874
 875                  rect->rect->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 876                  rect->start_trim->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 877                  rect->end_trim->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 878          }
 879
 880          rect = free_selection_rects.front();
 881          rect->id = id;
 882          free_selection_rects.pop_front();
 883          return rect;
 884  }
 885
 886  struct null_deleter { void operator()(void const *) const {} };
 887
 888  bool
 889  TimeAxisView::is_child (TimeAxisView* tav)
 890  {
 891          return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 892  }
 893
 894  void
 895  TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 896  {
 897          children.push_back (child);
 898  }
 899
 900  void
 901  TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 902  {
 903          Children::iterator i;
 904
 905          if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 906                  children.erase (i);
 907          }
 908  }
 909
 910  void
 911  TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 912  {
 913          return;
 914  }
 915
 916  void
 917  TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 918  {
 919          return;
 920  }
 921
 922  void
 923  TimeAxisView::add_ghost (RegionView* rv) {
 924          GhostRegion* gr = rv->add_ghost (*this);
 925
 926          if(gr) {
 927                  ghosts.push_back(gr);
 928                  gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 929          }
 930  }
 931
 932  void
 933  TimeAxisView::remove_ghost (RegionView* rv) {
 934         rv->remove_ghost_in (*this);
 935 }
 936
 937 void
 938 TimeAxisView::erase_ghost (GhostRegion* gr) {
 939         if(in_destructor) {
 940                 return;
 941         }
 942
 943         list<GhostRegion*>::iterator i;
 944
 945         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 946                 if ((*i) == gr) {
 947                         ghosts.erase (i);
 948                         break;
 949                 }
 950         }
 951 }
 952
 953 bool
 954 TimeAxisView::touched (double top, double bot)
 955 {
 956         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 957            y_position is the "origin" or "top" of the track.
 958          */
 959
 960         double mybot = _y_position + current_height();
 961
 962         return ((_y_position <= bot && _y_position >= top) ||
 963                 ((mybot <= bot) && (top < mybot)) ||
 964                 (mybot >= bot && _y_position < top));
 965 }
 966
 967 void
 968 TimeAxisView::set_parent (TimeAxisView& p)
 969 {
 970         parent = &p;
 971 }
 972
 973 bool
 974 TimeAxisView::has_state () const
 975 {
 976         return _has_state;
 977 }
 978
 979 TimeAxisView*
 980 TimeAxisView::get_parent_with_state ()
 981 {
 982         if (parent == 0) {
 983                 return 0;
 984         }
 985
 986         if (parent->has_state()) {
 987                 return parent;
 988         }
 989
 990         return parent->get_parent_with_state ();
 991 }
 992
 993
 994 XMLNode&
 995 TimeAxisView::get_state ()
 996 {
 997         XMLNode* node = new XMLNode ("TAV-" + name());
 998         char buf[32];
 999
1000         snprintf (buf, sizeof(buf), "%u", height);
1001         node->add_property ("height", buf);
1002         node->add_property ("marked-for-display", (_marked_for_display ? "1" : "0"));
1003         return *node;
1004 }
1005
1006 int
1007 TimeAxisView::set_state (const XMLNode& node)
1008 {
1009         const XMLProperty *prop;
1010
1011         if ((prop = node.property ("marked-for-display")) != 0) {
1012                 _marked_for_display = (prop->value() == "1");
1013         }
1014
1015         if ((prop = node.property ("track-height")) != 0) {
1016
1017                 if (prop->value() == "largest") {
1018                         set_height (hLargest);
1019                 } else if (prop->value() == "large") {
1020                         set_height (hLarge);
1021                 } else if (prop->value() == "larger") {
1022                         set_height (hLarger);
1023                 } else if (prop->value() == "normal") {
1024                         set_height (hNormal);
1025                 } else if (prop->value() == "smaller") {
1026                         set_height (hSmaller);
1027                 } else if (prop->value() == "small") {
1028                         set_height (hSmall);
1029                 } else {
1030                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
1031                         set_height (Normal);
1032                 }
1033
1034         } else if ((prop = node.property ("height")) != 0) {
1035
1036                 set_height (atoi (prop->value()));
1037
1038         } else {
1039
1040                 set_height (hNormal);
1041         }
1042
1043         return 0;
1044 }
1045
1046 void
1047 TimeAxisView::reset_height()
1048 {
1049         set_height (height);
1050
1051         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1052                 (*i)->set_height ((*i)->height);
1053         }
1054 }
1055
1056 void
1057 TimeAxisView::compute_controls_size_info ()
1058 {
1059         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1060         Gtk::Table two_row_table (2, 8);
1061         Gtk::Table one_row_table (1, 8);
1062         Button* buttons[5];
1063         const int border_width = 2;
1064         const int extra_height = (2 * border_width)
1065                 //+ 2   // 2 pixels for the hseparator between TimeAxisView control areas
1066                 + 10; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
1067
1068         window.add (one_row_table);
1069
1070         one_row_table.set_border_width (border_width);
1071         one_row_table.set_row_spacings (0);
1072         one_row_table.set_col_spacings (0);
1073         one_row_table.set_homogeneous (true);
1074
1075         two_row_table.set_border_width (border_width);
1076         two_row_table.set_row_spacings (0);
1077         two_row_table.set_col_spacings (0);
1078         two_row_table.set_homogeneous (true);
1079
1080         for (int i = 0; i < 5; ++i) {
1081                 buttons[i] = manage (new Button (X_("f")));
1082                 buttons[i]->set_name ("TrackMuteButton");
1083         }
1084
1085         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1086
1087         one_row_table.show_all ();
1088         Gtk::Requisition req(one_row_table.size_request ());
1089
1090
1091         // height required to show 1 row of buttons
1092
1093         hSmaller = req.height + extra_height;
1094
1095         window.remove ();
1096         window.add (two_row_table);
1097
1098         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1099         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1100         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1101         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1102
1103         two_row_table.show_all ();
1104         req = two_row_table.size_request ();
1105
1106         cerr << "Normal height is " << req.height << " + " << extra_height << endl;
1107
1108         // height required to show all normal buttons
1109
1110         hNormal = /*req.height*/ 48 + extra_height;
1111
1112         // these heights are all just larger than normal. no more
1113         // elements are visible (yet).
1114
1115         hLarger = hNormal + 50;
1116         hLarge = hNormal + 150;
1117         hLargest = hNormal + 250;
1118
1119         // height required to show track name
1120
1121         hSmall = 27;
1122 }
1123
1124 void
1125 TimeAxisView::show_name_label ()
1126 {
1127         if (!(name_packing & NameLabelPacked)) {
1128                 name_hbox.pack_start (name_label, true, true);
1129                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1130                 name_hbox.show ();
1131                 name_label.show ();
1132         }
1133 }
1134
1135 void
1136 TimeAxisView::show_name_entry ()
1137 {
1138         if (!(name_packing & NameEntryPacked)) {
1139                 name_hbox.pack_start (name_entry, true, true);
1140                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1141                 name_hbox.show ();
1142                 name_entry.show ();
1143         }
1144 }
1145
1146 void
1147 TimeAxisView::hide_name_label ()
1148 {
1149         if (name_packing & NameLabelPacked) {
1150                 name_hbox.remove (name_label);
1151                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1152         }
1153 }
1154
1155 void
1156 TimeAxisView::hide_name_entry ()
1157 {
1158         if (name_packing & NameEntryPacked) {
1159                 name_hbox.remove (name_entry);
1160                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1161         }
1162 }
1163
1164 void
1165 TimeAxisView::color_handler ()
1166 {
1167         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1168                 (*i)->set_colors();
1169         }
1170
1171         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1172
1173                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1174                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1175
1176                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1177                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1178
1179                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1180                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1181         }
1182
1183         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1184
1185                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1186                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1187
1188                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1189                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1190
1191                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1192                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1193         }
1194 }
1195
1196 /** @return Pair: TimeAxisView, layer index.
1197  * TimeAxisView is non-0 if this object covers y, or one of its children does.
1198  * If the covering object is a child axis, then the child is returned.
1199  * TimeAxisView is 0 otherwise.
1200  * Layer index is the layer number if the TimeAxisView is valid and is in stacked
1201  * region display mode, otherwise 0.
1202  */
1203 std::pair<TimeAxisView*, layer_t>
1204 TimeAxisView::covers_y_position (double y)
1205 {
1206         if (hidden()) {
1207                 return std::make_pair ( (TimeAxisView *) 0, 0);
1208         }
1209
1210         if (_y_position <= y && y < (_y_position + height)) {
1211
1212                 /* work out the layer index if appropriate */
1213                 layer_t l = 0;
1214                 if (layer_display () == Stacked && view ()) {
1215                         /* compute layer */
1216                         l = layer_t ((_y_position + height - y) / (view()->child_height ()));
1217                         /* clamp to max layers to be on the safe side; sometimes the above calculation
1218                            returns a too-high value */
1219                         if (l >= view()->layers ()) {
1220                                 l = view()->layers() - 1;
1221                         }
1222                 }
1223
1224                 return std::make_pair (this, l);
1225         }
1226
1227         for (Children::const_iterator i = children.begin(); i != children.end(); ++i) {
1228
1229                 std::pair<TimeAxisView*, int> const r = (*i)->covers_y_position (y);
1230                 if (r.first) {
1231                         return r;
1232                 }
1233         }
1234
1235         return std::make_pair ( (TimeAxisView *) 0, 0);
1236 }
1237
1238 void
1239 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1240 {
1241         analysis_features = pos;
1242         reshow_feature_lines ();
1243 }
1244
1245
1246 void
1247 TimeAxisView::hide_feature_lines ()
1248 {
1249         list<ArdourCanvas::SimpleLine*>::iterator l;
1250
1251         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1252                 (*l)->hide();
1253         }
1254 }
1255
1256 void
1257 TimeAxisView::reshow_feature_lines ()
1258 {
1259         while (feature_lines.size()< analysis_features.size()) {
1260                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*_canvas_display);
1261                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1262                 feature_lines.push_back (l);
1263         }
1264
1265         while (feature_lines.size() > analysis_features.size()) {
1266                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1267                 feature_lines.pop_back ();
1268                 delete line;
1269         }
1270
1271         AnalysisFeatureList::const_iterator i;
1272         list<ArdourCanvas::SimpleLine*>::iterator l;
1273
1274         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1275                 (*l)->property_x1() = _editor.frame_to_pixel (*i);
1276                 (*l)->property_x2() = _editor.frame_to_pixel (*i);
1277                 (*l)->property_y1() = 0;
1278                 (*l)->property_y2() = current_height();
1279                 (*l)->show ();
1280         }
1281 }
1282
1283 bool
1284 TimeAxisView::resizer_button_press (GdkEventButton* event)
1285 {
1286         _resize_drag_start = event->y_root;
1287         _resize_idle_target = current_height ();
1288         _editor.start_resize_line_ops ();
1289         return true;
1290 }
1291
1292 bool
1293 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1294 {
1295         _resize_drag_start = -1;
1296         _editor.end_resize_line_ops ();
1297         return true;
1298 }
1299
1300 void
1301 TimeAxisView::idle_resize (uint32_t h)
1302 {
1303         set_height (h);
1304 }
1305
1306 bool
1307 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1308 {
1309         if (_resize_drag_start < 0) {
1310                 return true;
1311         }
1312
1313         int32_t const delta = (int32_t) floor (_resize_drag_start - ev->y_root);
1314
1315         _resize_idle_target = std::max (_resize_idle_target - delta, (int) hSmall);
1316         _editor.add_to_idle_resize (this, _resize_idle_target);
1317
1318         _resize_drag_start = ev->y_root;
1319
1320         return true;
1321 }
1322
1323 bool
1324 TimeAxisView::resizer_expose (GdkEventExpose* event)
1325 {
1326         int w, h, x, y, d;
1327         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1328         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1329         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1330
1331         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1332                              true,
1333                              event->area.x,
1334                              event->area.y,
1335                              event->area.width,
1336                              event->area.height);
1337
1338         win->get_geometry (x, y, w, h, d);
1339
1340         /* handle/line #1 */
1341
1342         win->draw_line (dark, 0, 0, w - 2, 0);
1343         win->draw_point (dark, 0, 1);
1344         win->draw_line (light, 1, 1, w - 1, 1);
1345         win->draw_point (light, w - 1, 0);
1346
1347         /* handle/line #2 */
1348
1349         win->draw_line (dark, 0, 4, w - 2, 4);
1350         win->draw_point (dark, 0, 5);
1351         win->draw_line (light, 1, 5, w - 1, 5);
1352         win->draw_point (light, w - 1, 4);
1353
1354         /* handle/line #3 */
1355
1356         win->draw_line (dark, 0, 8, w - 2, 8);
1357         win->draw_point (dark, 0, 9);
1358         win->draw_line (light, 1, 9, w - 1, 9);
1359         win->draw_point (light, w - 1, 8);
1360
1361         return true;
1362 }
1363