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
  27 #include "pbd/error.h"
  28 #include "pbd/convert.h"
  29
  30 #include <gtkmm2ext/doi.h>
  31 #include <gtkmm2ext/utils.h>
  32 #include <gtkmm2ext/selector.h>
  33
  34 #include "canvas/rectangle.h"
  35
  36 #include "ardour_ui.h"
  37 #include "ardour_dialog.h"
  38 #include "global_signals.h"
  39 #include "gui_thread.h"
  40 #include "public_editor.h"
  41 #include "time_axis_view.h"
  42 #include "region_view.h"
  43 #include "ghostregion.h"
  44 #include "selection.h"
  45 #include "keyboard.h"
  46 #include "rgb_macros.h"
  47 #include "utils.h"
  48 #include "streamview.h"
  49 #include "editor_drag.h"
  50 #include "editor.h"
  51
  52 #include "i18n.h"
  53
  54 using namespace std;
  55 using namespace Gtk;
  56 using namespace Gdk;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Editing;
  60 using namespace ArdourCanvas;
  61 using Gtkmm2ext::Keyboard;
  62
  63 const double trim_handle_size = 6.0; /* pixels */
  64 uint32_t TimeAxisView::button_height = 0;
  65 uint32_t TimeAxisView::extra_height = 0;
  66 int const TimeAxisView::_max_order = 512;
  67 PBD::Signal1<void,TimeAxisView*> TimeAxisView::CatchDeletion;
  68
  69 TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* rent, Canvas& /*canvas*/)
  70         : AxisView (sess)
  71         , controls_table (2, 8)
  72         , _name_editing (false)
  73         , height (0)
  74         , display_menu (0)
  75         , parent (rent)
  76         , selection_group (0)
  77         , _hidden (false)
  78         , in_destructor (false)
  79         , _size_menu (0)
  80         , _canvas_display (0)
  81         , _y_position (0)
  82         , _editor (ed)
  83         , name_entry (0)
  84         , control_parent (0)
  85         , _order (0)
  86         , _effective_height (0)
  87         , _resize_drag_start (-1)
  88         , _preresize_cursor (0)
  89         , _have_preresize_cursor (false)
  90         , _ghost_group (0)
  91         , _ebox_release_can_act (true)
  92 {
  93         if (extra_height == 0) {
  94                 compute_heights ();
  95         }
  96
  97         _canvas_background = new Group (ed.get_background_group (), ArdourCanvas::Duple (0.0, 0.0));
  98         _canvas_display = new Group (ed.get_trackview_group (), ArdourCanvas::Duple (0.0, 0.0));
  99         _canvas_display->hide(); // reveal as needed
 100
 101         selection_group = new Group (_canvas_display);
 102         selection_group->set_data (X_("timeselection"), (void *) 1);
 103         selection_group->hide();
 104
 105         _ghost_group = new Group (_canvas_display);
 106         _ghost_group->lower_to_bottom();
 107         _ghost_group->show();
 108
 109         name_label.set_name ("TrackLabel");
 110         name_label.set_alignment (0.0, 0.5);
 111         ARDOUR_UI::instance()->set_tip (name_label, _("Track/Bus name (double click to edit)"));
 112
 113         Gtk::Entry* an_entry = new Gtk::Entry;
 114         Gtk::Requisition req;
 115         an_entry->size_request (req);
 116         name_label.set_size_request (-1, req.height);
 117         delete an_entry;
 118
 119         name_hbox.pack_start (name_label, true, true);
 120         name_hbox.show ();
 121         name_label.show ();
 122
 123         controls_table.set_size_request (200);
 124         controls_table.set_row_spacings (2);
 125         controls_table.set_col_spacings (2);
 126         controls_table.set_border_width (2);
 127         controls_table.set_homogeneous (true);
 128
 129         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 130         controls_table.show_all ();
 131         controls_table.set_no_show_all ();
 132
 133         HSeparator* separator = manage (new HSeparator());
 134
 135         controls_vbox.pack_start (controls_table, false, false);
 136         controls_vbox.show ();
 137
 138         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 139         controls_ebox.add (controls_vbox);
 140         controls_ebox.add_events (Gdk::BUTTON_PRESS_MASK|
 141                                   Gdk::BUTTON_RELEASE_MASK|
 142                                   Gdk::POINTER_MOTION_MASK|
 143                                   Gdk::ENTER_NOTIFY_MASK|
 144                                   Gdk::LEAVE_NOTIFY_MASK|
 145                                   Gdk::SCROLL_MASK);
 146         controls_ebox.set_flags (CAN_FOCUS);
 147
 148         /* note that this handler connects *before* the default handler */
 149         controls_ebox.signal_scroll_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 150         controls_ebox.signal_button_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_press));
 151         controls_ebox.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 152         controls_ebox.signal_motion_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_motion));
 153         controls_ebox.signal_leave_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_leave));
 154         controls_ebox.show ();
 155
 156         controls_hbox.pack_start (controls_ebox, true, true);
 157         controls_hbox.show ();
 158
 159         time_axis_vbox.pack_start (controls_hbox, true, true);
 160         time_axis_vbox.pack_end (*separator, false, false);
 161         time_axis_vbox.show();
 162
 163         ColorsChanged.connect (sigc::mem_fun (*this, &TimeAxisView::color_handler));
 164
 165         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&TimeAxisView::erase_ghost, this, _1), gui_context());
 166 }
 167
 168 TimeAxisView::~TimeAxisView()
 169 {
 170         in_destructor = true;
 171
 172         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 173                 delete *i;
 174         }
 175
 176         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 177  delete (*i)->rect;
 178                 delete (*i)->start_trim;
 179                 delete (*i)->end_trim;
 180
 181         }
 182
 183         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 184                 delete (*i)->rect;
 185                 delete (*i)->start_trim;
 186                 delete (*i)->end_trim;
 187         }
 188
 189         delete selection_group;
 190         selection_group = 0;
 191
 192         delete _canvas_background;
 193         _canvas_background = 0;
 194
 195         delete _canvas_display;
 196         _canvas_display = 0;
 197
 198         delete display_menu;
 199         display_menu = 0;
 200
 201         delete _size_menu;
 202 }
 203
 204 void
 205 TimeAxisView::hide ()
 206 {
 207         if (_hidden) {
 208                 return;
 209         }
 210
 211         _canvas_display->hide ();
 212         _canvas_background->hide ();
 213
 214         if (control_parent) {
 215                 control_parent->remove (time_axis_vbox);
 216                 control_parent = 0;
 217         }
 218
 219         _y_position = -1;
 220         _hidden = true;
 221
 222         /* now hide children */
 223
 224         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 225                 (*i)->hide ();
 226         }
 227
 228         /* if its hidden, it cannot be selected */
 229         _editor.get_selection().remove (this);
 230         /* and neither can its regions */
 231         _editor.get_selection().remove_regions (this);
 232
 233         Hiding ();
 234 }
 235
 236 /** Display this TimeAxisView as the nth component of the parent box, at y.
 237 *
 238 * @param y y position.
 239 * @param nth index for this TimeAxisView, increased if this view has children.
 240 * @param parent parent component.
 241 * @return height of this TimeAxisView.
 242 */
 243 guint32
 244 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 245 {
 246         if (control_parent) {
 247                 control_parent->reorder_child (time_axis_vbox, nth);
 248         } else {
 249                 control_parent = parent;
 250                 parent->pack_start (time_axis_vbox, false, false);
 251                 parent->reorder_child (time_axis_vbox, nth);
 252         }
 253
 254         _order = nth;
 255
 256         if (_y_position != y) {
 257                 _canvas_display->set_y_position (y);
 258                 _canvas_background->set_y_position (y);
 259                 _y_position = y;
 260
 261         }
 262
 263         _canvas_background->raise_to_top ();
 264         _canvas_display->raise_to_top ();
 265
 266         _canvas_background->show ();
 267         _canvas_display->show ();
 268
 269         _hidden = false;
 270
 271         _effective_height = current_height ();
 272
 273         /* now show relevant children */
 274
 275         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 276                 if ((*i)->marked_for_display()) {
 277                         ++nth;
 278                         _effective_height += (*i)->show_at (y + _effective_height, nth, parent);
 279                 } else {
 280                         (*i)->hide ();
 281                 }
 282         }
 283
 284         return _effective_height;
 285 }
 286
 287 void
 288 TimeAxisView::clip_to_viewport ()
 289 {
 290         if (marked_for_display()) {
 291                 _canvas_background->show ();
 292                 _canvas_display->show ();
 293         }
 294         return;
 295 }
 296
 297 bool
 298 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 299 {
 300         switch (ev->direction) {
 301         case GDK_SCROLL_UP:
 302                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 303                         /* See Editor::_stepping_axis_view for notes on this hack */
 304                         Editor& e = dynamic_cast<Editor&> (_editor);
 305                         if (!e.stepping_axis_view ()) {
 306                                 e.set_stepping_axis_view (this);
 307                         }
 308                         e.stepping_axis_view()->step_height (false);
 309                         return true;
 310                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 311                         _editor.scroll_tracks_up_line();
 312                         return true;
 313                 }
 314                 break;
 315
 316         case GDK_SCROLL_DOWN:
 317                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 318                         /* See Editor::_stepping_axis_view for notes on this hack */
 319                         Editor& e = dynamic_cast<Editor&> (_editor);
 320                         if (!e.stepping_axis_view ()) {
 321                                 e.set_stepping_axis_view (this);
 322                         }
 323                         e.stepping_axis_view()->step_height (true);
 324                         return true;
 325                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 326                         _editor.scroll_tracks_down_line();
 327                         return true;
 328                 }
 329                 break;
 330
 331         default:
 332                 /* no handling for left/right, yet */
 333                 break;
 334         }
 335
 336         return false;
 337 }
 338
 339 bool
 340 TimeAxisView::controls_ebox_button_press (GdkEventButton* event)
 341 {
 342         if ((event->button == 1 && event->type == GDK_2BUTTON_PRESS) || Keyboard::is_edit_event (event)) {
 343                 /* see if it is inside the name label */
 344                 if (name_label.is_ancestor (controls_ebox)) {
 345                         int nlx;
 346                         int nly;
 347                         controls_ebox.translate_coordinates (name_label, event->x, event->y, nlx, nly);
 348                         Gtk::Allocation a = name_label.get_allocation ();
 349                         if (nlx > 0 && nlx < a.get_width() && nly > 0 && nly < a.get_height()) {
 350                                 begin_name_edit ();
 351                                 _ebox_release_can_act = false;
 352                                 return true;
 353                         }
 354                 }
 355
 356         }
 357
 358         _ebox_release_can_act = true;
 359
 360         if (maybe_set_cursor (event->y) > 0) {
 361                 _resize_drag_start = event->y_root;
 362         }
 363
 364         return true;
 365 }
 366
 367 void
 368 TimeAxisView::idle_resize (uint32_t h)
 369 {
 370         set_height (h);
 371 }
 372
 373
 374 bool
 375 TimeAxisView::controls_ebox_motion (GdkEventMotion* ev)
 376 {
 377         if (_resize_drag_start >= 0) {
 378                 /* (ab)use the DragManager to do autoscrolling; adjust the event coordinates
 379                    into the world coordinate space that DragManager::motion_handler is expecting,
 380                    and then fake a DragManager motion event so that when maybe_autoscroll
 381                    asks DragManager for the current pointer position it will get the correct
 382                    answers.
 383                 */
 384                 int tx, ty;
 385                 controls_ebox.translate_coordinates (*control_parent, ev->x, ev->y, tx, ty);
 386                 ev->y = ty - _editor.get_trackview_group_vertical_offset();
 387                 _editor.drags()->motion_handler ((GdkEvent *) ev, false);
 388                 _editor.maybe_autoscroll (false, true, false, ev->y_root < _resize_drag_start);
 389
 390                 /* now do the actual TAV resize */
 391                 int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
 392                 _editor.add_to_idle_resize (this, delta);
 393                 _resize_drag_start = ev->y_root;
 394         } else {
 395                 /* not dragging but ... */
 396                 maybe_set_cursor (ev->y);
 397         }
 398
 399         return true;
 400 }
 401
 402 bool
 403 TimeAxisView::controls_ebox_leave (GdkEventCrossing*)
 404 {
 405         if (_have_preresize_cursor) {
 406                 gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
 407                 _have_preresize_cursor = false;
 408         }
 409         return true;
 410 }
 411
 412 bool
 413 TimeAxisView::maybe_set_cursor (int y)
 414 {
 415         /* XXX no Gtkmm Gdk::Window::get_cursor() */
 416         Glib::RefPtr<Gdk::Window> win = controls_ebox.get_window();
 417
 418         if (y > (gint) floor (controls_ebox.get_height() * 0.75)) {
 419
 420                 /* y-coordinate in lower 25% */
 421
 422                 if (!_have_preresize_cursor) {
 423                         _preresize_cursor = gdk_window_get_cursor (win->gobj());
 424                         _have_preresize_cursor = true;
 425                         win->set_cursor (Gdk::Cursor(Gdk::SB_V_DOUBLE_ARROW));
 426                 }
 427
 428                 return 1;
 429
 430         } else if (_have_preresize_cursor) {
 431                 gdk_window_set_cursor (win->gobj(), _preresize_cursor);
 432                 _have_preresize_cursor = false;
 433
 434                 return -1;
 435         }
 436
 437         return 0;
 438 }
 439
 440 bool
 441 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 442 {
 443         if (_resize_drag_start >= 0) {
 444                 if (_have_preresize_cursor) {
 445                         gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
 446                         _preresize_cursor = 0;
 447                         _have_preresize_cursor = false;
 448                 }
 449                 _editor.stop_canvas_autoscroll ();
 450                 _resize_drag_start = -1;
 451         }
 452
 453         if (!_ebox_release_can_act) {
 454                 return true;
 455         }
 456
 457         switch (ev->button) {
 458         case 1:
 459                 selection_click (ev);
 460                 break;
 461
 462         case 3:
 463                 popup_display_menu (ev->time);
 464                 break;
 465         }
 466
 467         return true;
 468 }
 469
 470 void
 471 TimeAxisView::selection_click (GdkEventButton* ev)
 472 {
 473         Selection::Operation op = ArdourKeyboard::selection_type (ev->state);
 474         _editor.set_selected_track (*this, op, false);
 475 }
 476
 477
 478 /** Steps through the defined heights for this TrackView.
 479  *  @param coarser true if stepping should decrease in size, otherwise false.
 480  */
 481 void
 482 TimeAxisView::step_height (bool coarser)
 483 {
 484         static const uint32_t step = 25;
 485
 486         if (coarser) {
 487
 488                 if (height <= preset_height (HeightSmall)) {
 489                         return;
 490                 } else if (height <= preset_height (HeightNormal) && height > preset_height (HeightSmall)) {
 491                         set_height_enum (HeightSmall);
 492                 } else {
 493                         set_height (height - step);
 494                 }
 495
 496         } else {
 497
 498                 if (height <= preset_height(HeightSmall)) {
 499                         set_height_enum (HeightNormal);
 500                 } else {
 501                         set_height (height + step);
 502                 }
 503
 504         }
 505 }
 506
 507 void
 508 TimeAxisView::set_height_enum (Height h, bool apply_to_selection)
 509 {
 510         if (apply_to_selection) {
 511                 _editor.get_selection().tracks.foreach_time_axis (boost::bind (&TimeAxisView::set_height_enum, _1, h, false));
 512         } else {
 513                 set_height (preset_height (h));
 514         }
 515 }
 516
 517 void
 518 TimeAxisView::set_height (uint32_t h)
 519 {
 520         if (h < preset_height (HeightSmall)) {
 521                 h = preset_height (HeightSmall);
 522         }
 523
 524         time_axis_vbox.property_height_request () = h;
 525         height = h;
 526
 527         char buf[32];
 528         snprintf (buf, sizeof (buf), "%u", height);
 529         set_gui_property ("height", buf);
 530
 531         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 532                 (*i)->set_height ();
 533         }
 534
 535         if (selection_group->visible ()) {
 536                 /* resize the selection rect */
 537                 show_selection (_editor.get_selection().time);
 538         }
 539 }
 540
 541 bool
 542 TimeAxisView::name_entry_key_press (GdkEventKey* ev)
 543 {
 544         /* steal escape, tabs from GTK */
 545
 546         switch (ev->keyval) {
 547         case GDK_Escape:
 548         case GDK_ISO_Left_Tab:
 549         case GDK_Tab:
 550                 return true;
 551         }
 552         return false;
 553 }
 554
 555 bool
 556 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 557 {
 558         TrackViewList::iterator i;
 559
 560         switch (ev->keyval) {
 561         case GDK_Escape:
 562                 end_name_edit (RESPONSE_CANCEL);
 563                 return true;
 564
 565         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 566          * generates a different ev->keyval, rather than setting
 567          * ev->state.
 568          */
 569         case GDK_ISO_Left_Tab:
 570                 end_name_edit (RESPONSE_APPLY);
 571                 return true;
 572
 573         case GDK_Tab:
 574                 end_name_edit (RESPONSE_ACCEPT);
 575                 return true;
 576         default:
 577                 break;
 578         }
 579
 580         return false;
 581 }
 582
 583 bool
 584 TimeAxisView::name_entry_focus_out (GdkEventFocus*)
 585 {
 586         end_name_edit (RESPONSE_OK);
 587         return false;
 588 }
 589
 590 void
 591 TimeAxisView::begin_name_edit ()
 592 {
 593         if (name_entry) {
 594                 return;
 595         }
 596
 597         if (can_edit_name()) {
 598
 599                 name_entry = manage (new Gtkmm2ext::FocusEntry);
 600
 601                 name_entry->set_name ("EditorTrackNameDisplay");
 602                 name_entry->signal_key_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_press), false);
 603                 name_entry->signal_key_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_release), false);
 604                 name_entry->signal_focus_out_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 605                 name_entry->set_text (name_label.get_text());
 606                 name_entry->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisView::end_name_edit), RESPONSE_OK));
 607
 608                 if (name_label.is_ancestor (name_hbox)) {
 609                         name_hbox.remove (name_label);
 610                 }
 611
 612                 name_hbox.pack_start (*name_entry);
 613                 name_entry->show ();
 614
 615                 name_entry->select_region (0, -1);
 616                 name_entry->set_state (STATE_SELECTED);
 617                 name_entry->grab_focus ();
 618                 name_entry->start_editing (0);
 619         }
 620 }
 621
 622 void
 623 TimeAxisView::end_name_edit (int response)
 624 {
 625         if (!name_entry) {
 626                 return;
 627         }
 628
 629         bool edit_next = false;
 630         bool edit_prev = false;
 631
 632         switch (response) {
 633         case RESPONSE_CANCEL:
 634                 break;
 635         case RESPONSE_OK:
 636                 name_entry_changed ();
 637                 break;
 638         case RESPONSE_ACCEPT:
 639                 name_entry_changed ();
 640                 edit_next = true;
 641         case RESPONSE_APPLY:
 642                 name_entry_changed ();
 643                 edit_prev = true;
 644         }
 645
 646         /* this will delete the name_entry. but it will also drop focus, which
 647          * will cause another callback to this function, so set name_entry = 0
 648          * first to ensure we don't double-remove etc. etc.
 649          */
 650
 651         Gtk::Entry* tmp = name_entry;
 652         name_entry = 0;
 653         name_hbox.remove (*tmp);
 654
 655         /* put the name label back */
 656
 657         name_hbox.pack_start (name_label);
 658         name_label.show ();
 659
 660         if (edit_next) {
 661
 662                 TrackViewList const & allviews = _editor.get_track_views ();
 663                 TrackViewList::const_iterator i = find (allviews.begin(), allviews.end(), this);
 664
 665                 if (i != allviews.end()) {
 666
 667                         do {
 668                                 if (++i == allviews.end()) {
 669                                         return;
 670                                 }
 671
 672                                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*>(*i);
 673
 674                                 if (rtav && rtav->route()->record_enabled()) {
 675                                         continue;
 676                                 }
 677
 678                                 if (!(*i)->hidden()) {
 679                                         break;
 680                                 }
 681
 682                         } while (true);
 683                 }
 684
 685                 if ((i != allviews.end()) && (*i != this) && !(*i)->hidden()) {
 686                         _editor.ensure_time_axis_view_is_visible (**i);
 687                         (*i)->begin_name_edit ();
 688                 }
 689
 690         } else if (edit_prev) {
 691
 692                 TrackViewList const & allviews = _editor.get_track_views ();
 693                 TrackViewList::const_iterator i = find (allviews.begin(), allviews.end(), this);
 694
 695                 if (i != allviews.begin()) {
 696                         do {
 697                                 if (i == allviews.begin()) {
 698                                         return;
 699                                 }
 700
 701                                 --i;
 702
 703                                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*>(*i);
 704
 705                                 if (rtav && rtav->route()->record_enabled()) {
 706                                         continue;
 707                                 }
 708
 709                                 if (!(*i)->hidden()) {
 710                                         break;
 711                                 }
 712
 713                         } while (true);
 714                 }
 715
 716                 if ((i != allviews.end()) && (*i != this) && !(*i)->hidden()) {
 717                         _editor.ensure_time_axis_view_is_visible (**i);
 718                         (*i)->begin_name_edit ();
 719                 }
 720         }
 721 }
 722
 723 void
 724 TimeAxisView::name_entry_changed ()
 725 {
 726 }
 727
 728 bool
 729 TimeAxisView::can_edit_name () const
 730 {
 731         return true;
 732 }
 733
 734 void
 735 TimeAxisView::conditionally_add_to_selection ()
 736 {
 737         Selection& s (_editor.get_selection ());
 738
 739         if (!s.selected (this)) {
 740                 _editor.set_selected_track (*this, Selection::Set);
 741         }
 742 }
 743
 744 void
 745 TimeAxisView::popup_display_menu (guint32 when)
 746 {
 747         conditionally_add_to_selection ();
 748
 749         build_display_menu ();
 750         display_menu->popup (1, when);
 751 }
 752
 753 void
 754 TimeAxisView::set_selected (bool yn)
 755 {
 756         if (yn == _selected) {
 757                 return;
 758         }
 759
 760         Selectable::set_selected (yn);
 761
 762         if (_selected) {
 763                 controls_ebox.set_name (controls_base_selected_name);
 764                 time_axis_vbox.set_name (controls_base_selected_name);
 765                 controls_vbox.set_name (controls_base_selected_name);
 766         } else {
 767                 controls_ebox.set_name (controls_base_unselected_name);
 768                 time_axis_vbox.set_name (controls_base_unselected_name);
 769                 controls_vbox.set_name (controls_base_unselected_name);
 770                 hide_selection ();
 771
 772                 /* children will be set for the yn=true case. but when deselecting
 773                    the editor only has a list of top-level trackviews, so we
 774                    have to do this here.
 775                 */
 776
 777                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 778                         (*i)->set_selected (false);
 779                 }
 780         }
 781 }
 782
 783 void
 784 TimeAxisView::build_display_menu ()
 785 {
 786         using namespace Menu_Helpers;
 787
 788         delete display_menu;
 789
 790         display_menu = new Menu;
 791         display_menu->set_name ("ArdourContextMenu");
 792
 793         // Just let implementing classes define what goes into the manu
 794 }
 795
 796 void
 797 TimeAxisView::set_frames_per_pixel (double fpp)
 798 {
 799         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 800                 (*i)->set_frames_per_pixel (fpp);
 801         }
 802
 803         AnalysisFeatureList::const_iterator i;
 804         list<ArdourCanvas::Line*>::iterator l;
 805 }
 806
 807 void
 808 TimeAxisView::show_timestretch (framepos_t start, framepos_t end, int layers, int layer)
 809 {
 810         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 811                 (*i)->show_timestretch (start, end, layers, layer);
 812         }
 813 }
 814
 815 void
 816 TimeAxisView::hide_timestretch ()
 817 {
 818         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 819                 (*i)->hide_timestretch ();
 820         }
 821 }
 822
 823 void
 824 TimeAxisView::show_selection (TimeSelection& ts)
 825 {
 826         double x1;
 827         double x2;
 828         double y2;
 829         SelectionRect *rect;
 830
 831         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 832                 (*i)->show_selection (ts);
 833         }
 834
 835         if (selection_group->visible ()) {
 836                 while (!used_selection_rects.empty()) {
 837                         free_selection_rects.push_front (used_selection_rects.front());
 838                         used_selection_rects.pop_front();
 839                         free_selection_rects.front()->rect->hide();
 840                         free_selection_rects.front()->start_trim->hide();
 841                         free_selection_rects.front()->end_trim->hide();
 842                 }
 843                 selection_group->hide();
 844         }
 845
 846         selection_group->show();
 847         selection_group->raise_to_top();
 848
 849         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 850                 framepos_t start, end;
 851                 framecnt_t cnt;
 852
 853                 start = (*i).start;
 854                 end = (*i).end;
 855                 cnt = end - start + 1;
 856
 857                 rect = get_selection_rect ((*i).id);
 858
 859                 x1 = _editor.sample_to_pixel (start);
 860                 x2 = _editor.sample_to_pixel (start + cnt - 1);
 861                 y2 = current_height();
 862
 863                 rect->rect->set (ArdourCanvas::Rect (x1, 1, x2, y2));
 864
 865                 // trim boxes are at the top for selections
 866
 867                 if (x2 > x1) {
 868                         rect->start_trim->set (ArdourCanvas::Rect (x1, 1, x1 + trim_handle_size, y2));
 869                         rect->end_trim->set (ArdourCanvas::Rect (x2 - trim_handle_size, 1, x2, y2));
 870
 871                         rect->start_trim->show();
 872                         rect->end_trim->show();
 873                 } else {
 874                         rect->start_trim->hide();
 875                         rect->end_trim->hide();
 876                 }
 877
 878                 rect->rect->show ();
 879                 used_selection_rects.push_back (rect);
 880         }
 881 }
 882
 883 void
 884 TimeAxisView::reshow_selection (TimeSelection& ts)
 885 {
 886         show_selection (ts);
 887
 888         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 889                 (*i)->show_selection (ts);
 890         }
 891 }
 892
 893 void
 894 TimeAxisView::hide_selection ()
 895 {
 896         if (selection_group->visible ()) {
 897                 while (!used_selection_rects.empty()) {
 898                         free_selection_rects.push_front (used_selection_rects.front());
 899                         used_selection_rects.pop_front();
 900                         free_selection_rects.front()->rect->hide();
 901                         free_selection_rects.front()->start_trim->hide();
 902                         free_selection_rects.front()->end_trim->hide();
 903                 }
 904                 selection_group->hide();
 905         }
 906
 907         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 908                 (*i)->hide_selection ();
 909         }
 910 }
 911
 912 void
 913 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 914 {
 915         /* find the selection rect this is for. we have the item corresponding to one
 916            of the trim handles.
 917          */
 918
 919         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 920                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 921
 922                         /* make one trim handle be "above" the other so that if they overlap,
 923                            the top one is the one last used.
 924                         */
 925
 926                         (*i)->rect->raise_to_top ();
 927                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 928                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 929
 930                         break;
 931                 }
 932         }
 933 }
 934
 935 SelectionRect *
 936 TimeAxisView::get_selection_rect (uint32_t id)
 937 {
 938         SelectionRect *rect;
 939
 940         /* check to see if we already have a visible rect for this particular selection ID */
 941
 942         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 943                 if ((*i)->id == id) {
 944                         return (*i);
 945                 }
 946         }
 947
 948         /* ditto for the free rect list */
 949
 950         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 951                 if ((*i)->id == id) {
 952                         SelectionRect* ret = (*i);
 953                         free_selection_rects.erase (i);
 954                         return ret;
 955                 }
 956         }
 957
 958         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 959
 960         if (free_selection_rects.empty()) {
 961
 962                 rect = new SelectionRect;
 963
 964                 rect->rect = new ArdourCanvas::Rectangle (selection_group);
 965                 rect->rect->set_outline_what (0);
 966                 rect->rect->set_fill_color (ARDOUR_UI::config()->canvasvar_SelectionRect.get());
 967
 968                 rect->start_trim = new ArdourCanvas::Rectangle (selection_group);
 969                 rect->start_trim->set_outline_what (0);
 970
 971                 rect->end_trim = new ArdourCanvas::Rectangle (selection_group);
 972                 rect->end_trim->set_outline_what (0);
 973
 974                 free_selection_rects.push_front (rect);
 975
 976                 rect->rect->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 977                 rect->start_trim->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 978                 rect->end_trim->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 979         }
 980
 981         rect = free_selection_rects.front();
 982         rect->id = id;
 983         free_selection_rects.pop_front();
 984         return rect;
 985 }
 986
 987 struct null_deleter { void operator()(void const *) const {} };
 988
 989 bool
 990 TimeAxisView::is_child (TimeAxisView* tav)
 991 {
 992         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 993 }
 994
 995 void
 996 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 997 {
 998         children.push_back (child);
 999 }
1000
1001 void
1002 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
1003 {
1004         Children::iterator i;
1005
1006         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
1007                 children.erase (i);
1008         }
1009 }
1010
1011 /** Get selectable things within a given range.
1012  *  @param start Start time in session frames.
1013  *  @param end End time in session frames.
1014  *  @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
1015  *  @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
1016  *  @param result Filled in with selectable things.
1017  */
1018 void
1019 TimeAxisView::get_selectables (framepos_t /*start*/, framepos_t /*end*/, double /*top*/, double /*bot*/, list<Selectable*>& /*result*/)
1020 {
1021         return;
1022 }
1023
1024 void
1025 TimeAxisView::get_inverted_selectables (Selection& /*sel*/, list<Selectable*>& /*result*/)
1026 {
1027         return;
1028 }
1029
1030 void
1031 TimeAxisView::add_ghost (RegionView* rv)
1032 {
1033         GhostRegion* gr = rv->add_ghost (*this);
1034
1035         if (gr) {
1036                 ghosts.push_back(gr);
1037         }
1038 }
1039
1040 void
1041 TimeAxisView::remove_ghost (RegionView* rv)
1042 {
1043         rv->remove_ghost_in (*this);
1044 }
1045
1046 void
1047 TimeAxisView::erase_ghost (GhostRegion* gr)
1048 {
1049         if (in_destructor) {
1050                 return;
1051         }
1052
1053         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1054                 if ((*i) == gr) {
1055                         ghosts.erase (i);
1056                         break;
1057                 }
1058         }
1059 }
1060
1061 bool
1062 TimeAxisView::touched (double top, double bot)
1063 {
1064         /* remember: this is X Window - coordinate space starts in upper left and moves down.
1065           y_position is the "origin" or "top" of the track.
1066         */
1067
1068         double mybot = _y_position + current_height();
1069
1070         return ((_y_position <= bot && _y_position >= top) ||
1071                 ((mybot <= bot) && (top < mybot)) ||
1072                 (mybot >= bot && _y_position < top));
1073 }
1074
1075 void
1076 TimeAxisView::set_parent (TimeAxisView& p)
1077 {
1078         parent = &p;
1079 }
1080
1081 void
1082 TimeAxisView::reset_height ()
1083 {
1084         set_height (height);
1085
1086         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1087                 (*i)->set_height ((*i)->height);
1088         }
1089 }
1090
1091 void
1092 TimeAxisView::compute_heights ()
1093 {
1094         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1095         Gtk::Table two_row_table (2, 8);
1096         Gtk::Table one_row_table (1, 8);
1097         Button* buttons[5];
1098         const int border_width = 2;
1099
1100         const int separator_height = 2;
1101         extra_height = (2 * border_width) + separator_height;
1102
1103         window.add (one_row_table);
1104
1105         one_row_table.set_border_width (border_width);
1106         one_row_table.set_row_spacings (0);
1107         one_row_table.set_col_spacings (0);
1108         one_row_table.set_homogeneous (true);
1109
1110         two_row_table.set_border_width (border_width);
1111         two_row_table.set_row_spacings (0);
1112         two_row_table.set_col_spacings (0);
1113         two_row_table.set_homogeneous (true);
1114
1115         for (int i = 0; i < 5; ++i) {
1116                 buttons[i] = manage (new Button (X_("f")));
1117                 buttons[i]->set_name ("TrackMuteButton");
1118         }
1119
1120         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1121
1122         one_row_table.show_all ();
1123         Gtk::Requisition req(one_row_table.size_request ());
1124
1125         // height required to show 1 row of buttons
1126         button_height = req.height;
1127 }
1128
1129 void
1130 TimeAxisView::color_handler ()
1131 {
1132         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); i++) {
1133                 (*i)->set_colors();
1134         }
1135
1136         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1137
1138                 (*i)->rect->set_fill_color (ARDOUR_UI::config()->canvasvar_SelectionRect.get());
1139                 (*i)->rect->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1140
1141                 (*i)->start_trim->set_fill_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1142                 (*i)->start_trim->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1143
1144                 (*i)->end_trim->set_fill_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1145                 (*i)->end_trim->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1146         }
1147
1148         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1149
1150                 (*i)->rect->set_fill_color (ARDOUR_UI::config()->canvasvar_SelectionRect.get());
1151                 (*i)->rect->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1152
1153                 (*i)->start_trim->set_fill_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1154                 (*i)->start_trim->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1155
1156                 (*i)->end_trim->set_fill_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1157                 (*i)->end_trim->set_outline_color (ARDOUR_UI::config()->canvasvar_Selection.get());
1158         }
1159 }
1160
1161 /** @return Pair: TimeAxisView, layer index.
1162  * TimeAxisView is non-0 if this object covers y, or one of its children does.
1163  * If the covering object is a child axis, then the child is returned.
1164  * TimeAxisView is 0 otherwise.
1165  * Layer index is the layer number (possibly fractional) if the TimeAxisView is valid
1166  * and is in stacked or expanded * region display mode, otherwise 0.
1167  */
1168 std::pair<TimeAxisView*, double>
1169 TimeAxisView::covers_y_position (double y)
1170 {
1171         if (hidden()) {
1172                 return std::make_pair ((TimeAxisView *) 0, 0);
1173         }
1174
1175         if (_y_position <= y && y < (_y_position + height)) {
1176
1177                 /* work out the layer index if appropriate */
1178                 double l = 0;
1179                 switch (layer_display ()) {
1180                 case Overlaid:
1181                         break;
1182                 case Stacked:
1183                         if (view ()) {
1184                                 /* compute layer */
1185                                 l = layer_t ((_y_position + height - y) / (view()->child_height ()));
1186                                 /* clamp to max layers to be on the safe side; sometimes the above calculation
1187                                    returns a too-high value */
1188                                 if (l >= view()->layers ()) {
1189                                         l = view()->layers() - 1;
1190                                 }
1191                         }
1192                         break;
1193                 case Expanded:
1194                         if (view ()) {
1195                                 int const n = floor ((_y_position + height - y) / (view()->child_height ()));
1196                                 l = n * 0.5 - 0.5;
1197                                 if (l >= (view()->layers() - 0.5)) {
1198                                         l = view()->layers() - 0.5;
1199                                 }
1200                         }
1201                         break;
1202                 }
1203
1204                 return std::make_pair (this, l);
1205         }
1206
1207         for (Children::const_iterator i = children.begin(); i != children.end(); ++i) {
1208
1209                 std::pair<TimeAxisView*, int> const r = (*i)->covers_y_position (y);
1210                 if (r.first) {
1211                         return r;
1212                 }
1213         }
1214
1215         return std::make_pair ((TimeAxisView *) 0, 0);
1216 }
1217
1218
1219 uint32_t
1220 TimeAxisView::preset_height (Height h)
1221 {
1222         switch (h) {
1223         case HeightLargest:
1224                 return (button_height * 2) + extra_height + 260;
1225         case HeightLarger:
1226                 return (button_height * 2) + extra_height + 160;
1227         case HeightLarge:
1228                 return (button_height * 2) + extra_height + 60;
1229         case HeightNormal:
1230                 return (button_height * 2) + extra_height + 10;
1231         case HeightSmall:
1232                 return button_height + extra_height;
1233         }
1234
1235         /* NOTREACHED */
1236         return 0;
1237 }
1238
1239 /** @return Child time axis views that are not hidden */
1240 TimeAxisView::Children
1241 TimeAxisView::get_child_list ()
1242 {
1243         Children c;
1244
1245         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1246                 if (!(*i)->hidden()) {
1247                         c.push_back(*i);
1248                 }
1249         }
1250
1251         return c;
1252 }
1253
1254 void
1255 TimeAxisView::build_size_menu ()
1256 {
1257         if (_size_menu && _size_menu->gobj ()) {
1258                 return;
1259         }
1260
1261         delete _size_menu;
1262
1263         using namespace Menu_Helpers;
1264
1265         _size_menu = new Menu;
1266         _size_menu->set_name ("ArdourContextMenu");
1267         MenuList& items = _size_menu->items();
1268
1269         items.push_back (MenuElem (_("Largest"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLargest, true)));
1270         items.push_back (MenuElem (_("Larger"),  sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLarger, true)));
1271         items.push_back (MenuElem (_("Large"),   sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLarge, true)));
1272         items.push_back (MenuElem (_("Normal"),  sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightNormal, true)));
1273         items.push_back (MenuElem (_("Small"),   sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightSmall, true)));
1274 }
1275
1276 void
1277 TimeAxisView::reset_visual_state ()
1278 {
1279         /* this method is not required to trigger a global redraw */
1280
1281         string str = gui_property ("height");
1282
1283         if (!str.empty()) {
1284                 set_height (atoi (str));
1285         } else {
1286                 set_height (preset_height (HeightNormal));
1287         }
1288 }
1289
1290 TrackViewList
1291 TrackViewList::filter_to_unique_playlists ()
1292 {
1293         std::set<boost::shared_ptr<ARDOUR::Playlist> > playlists;
1294         TrackViewList ts;
1295
1296         for (iterator i = begin(); i != end(); ++i) {
1297                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
1298                 if (!rtav) {
1299                         /* not a route: include it anyway */
1300                         ts.push_back (*i);
1301                 } else {
1302                         boost::shared_ptr<ARDOUR::Track> t = rtav->track();
1303                         if (t) {
1304                                 if (playlists.insert (t->playlist()).second) {
1305                                         /* playlist not seen yet */
1306                                         ts.push_back (*i);
1307                                 }
1308                         } else {
1309                                 /* not a track: include it anyway */
1310                                 ts.push_back (*i);
1311                         }
1312                 }
1313         }
1314         return ts;
1315 }