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