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/canvas.h"
  35 #include "canvas/rectangle.h"
  36 #include "canvas/debug.h"
  37
  38 #include "ardour_ui.h"
  39 #include "ardour_dialog.h"
  40 #include "global_signals.h"
  41 #include "gui_thread.h"
  42 #include "public_editor.h"
  43 #include "time_axis_view.h"
  44 #include "region_view.h"
  45 #include "ghostregion.h"
  46 #include "selection.h"
  47 #include "keyboard.h"
  48 #include "rgb_macros.h"
  49 #include "utils.h"
  50 #include "streamview.h"
  51 #include "editor_drag.h"
  52 #include "editor.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace Gtk;
  58 using namespace Gdk;
  59 using namespace ARDOUR;
  60 using namespace PBD;
  61 using namespace Editing;
  62 using namespace ArdourCanvas;
  63 using Gtkmm2ext::Keyboard;
  64
  65 const double trim_handle_size = 6.0; /* pixels */
  66 uint32_t TimeAxisView::button_height = 0;
  67 uint32_t TimeAxisView::extra_height = 0;
  68 int const TimeAxisView::_max_order = 512;
  69 PBD::Signal1<void,TimeAxisView*> TimeAxisView::CatchDeletion;
  70
  71 TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* rent, Canvas& /*canvas*/)
  72         : AxisView (sess)
  73         , controls_table (2, 8)
  74         , _name_editing (false)
  75         , height (0)
  76         , display_menu (0)
  77         , parent (rent)
  78         , selection_group (0)
  79         , _hidden (false)
  80         , in_destructor (false)
  81         , _size_menu (0)
  82         , _canvas_display (0)
  83         , _y_position (0)
  84         , _editor (ed)
  85         , name_entry (0)
  86         , control_parent (0)
  87         , _order (0)
  88         , _effective_height (0)
  89         , _resize_drag_start (-1)
  90         , _preresize_cursor (0)
  91         , _have_preresize_cursor (false)
  92         , _ghost_group (0)
  93         , _ebox_release_can_act (true)
  94 {
  95         if (extra_height == 0) {
  96                 compute_heights ();
  97         }
  98
  99         _canvas_display = new Group (ed.get_trackview_group (), ArdourCanvas::Duple (0.0, 0.0));
 100         _canvas_display->hide(); // reveal as needed
 101
 102         selection_group = new Group (_canvas_display);
 103         selection_group->set_data (X_("timeselection"), (void *) 1);
 104         selection_group->hide();
 105
 106         _ghost_group = new Group (_canvas_display);
 107         _ghost_group->lower_to_bottom();
 108         _ghost_group->show();
 109
 110         name_label.set_name ("TrackLabel");
 111         name_label.set_alignment (0.0, 0.5);
 112         ARDOUR_UI::instance()->set_tip (name_label, _("Track/Bus name (double click to edit)"));
 113
 114         Gtk::Entry* an_entry = new Gtk::Entry;
 115         Gtk::Requisition req;
 116         an_entry->size_request (req);
 117         name_label.set_size_request (-1, req.height);
 118         delete an_entry;
 119
 120         name_hbox.pack_start (name_label, true, true);
 121         name_hbox.show ();
 122         name_label.show ();
 123
 124         controls_table.set_size_request (200);
 125         controls_table.set_row_spacings (2);
 126         controls_table.set_col_spacings (2);
 127         controls_table.set_border_width (2);
 128         controls_table.set_homogeneous (true);
 129
 130         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 131         controls_table.show_all ();
 132         controls_table.set_no_show_all ();
 133
 134         HSeparator* separator = manage (new HSeparator());
 135         separator->set_name("TrackSeparator");
 136         separator->set_size_request(-1, 1);
 137         separator->show();
 138
 139         controls_vbox.pack_start (controls_table, false, false);
 140         controls_vbox.show ();
 141
 142         controls_hbox.pack_start (controls_vbox, true, true);
 143         controls_hbox.show ();
 144
 145         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 146         controls_ebox.add (controls_hbox);
 147         controls_ebox.add_events (Gdk::BUTTON_PRESS_MASK|
 148                                   Gdk::BUTTON_RELEASE_MASK|
 149                                   Gdk::POINTER_MOTION_MASK|
 150                                   Gdk::ENTER_NOTIFY_MASK|
 151                                   Gdk::LEAVE_NOTIFY_MASK|
 152                                   Gdk::SCROLL_MASK);
 153         controls_ebox.set_flags (CAN_FOCUS);
 154
 155         /* note that this handler connects *before* the default handler */
 156         controls_ebox.signal_scroll_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 157         controls_ebox.signal_button_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_press));
 158         controls_ebox.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 159         controls_ebox.signal_motion_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_motion));
 160         controls_ebox.signal_leave_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_leave));
 161         controls_ebox.show ();
 162
 163         time_axis_vbox.pack_start (controls_ebox, true, true, 0);
 164         time_axis_vbox.pack_end (*separator, false, false);
 165         time_axis_vbox.show();
 166
 167         ColorsChanged.connect (sigc::mem_fun (*this, &TimeAxisView::color_handler));
 168
 169         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&TimeAxisView::erase_ghost, this, _1), gui_context());
 170 }
 171
 172 TimeAxisView::~TimeAxisView()
 173 {
 174         in_destructor = true;
 175
 176         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 177                 delete *i;
 178         }
 179
 180         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 181  delete (*i)->rect;
 182                 delete (*i)->start_trim;
 183                 delete (*i)->end_trim;
 184
 185         }
 186
 187         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 188                 delete (*i)->rect;
 189                 delete (*i)->start_trim;
 190                 delete (*i)->end_trim;
 191         }
 192
 193         delete selection_group;
 194         selection_group = 0;
 195
 196         delete _canvas_display;
 197         _canvas_display = 0;
 198
 199         delete display_menu;
 200         display_menu = 0;
 201
 202         delete _size_menu;
 203 }
 204
 205 void
 206 TimeAxisView::hide ()
 207 {
 208         if (_hidden) {
 209                 return;
 210         }
 211
 212         _canvas_display->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                 _y_position = y;
 259
 260         }
 261
 262         _canvas_display->raise_to_top ();
 263         _canvas_display->show ();
 264
 265         _hidden = false;
 266
 267         _effective_height = current_height ();
 268
 269         /* now show relevant children */
 270
 271         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 272                 if ((*i)->marked_for_display()) {
 273                         ++nth;
 274                         _effective_height += (*i)->show_at (y + _effective_height, nth, parent);
 275                 } else {
 276                         (*i)->hide ();
 277                 }
 278         }
 279
 280         return _effective_height;
 281 }
 282
 283 bool
 284 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 285 {
 286         switch (ev->direction) {
 287         case GDK_SCROLL_UP:
 288                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomVerticalModifier)) {
 289                         /* See Editor::_stepping_axis_view for notes on this hack */
 290                         Editor& e = dynamic_cast<Editor&> (_editor);
 291                         if (!e.stepping_axis_view ()) {
 292                                 e.set_stepping_axis_view (this);
 293                         }
 294                         e.stepping_axis_view()->step_height (false);
 295                         return true;
 296                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 297                         _editor.scroll_tracks_up_line();
 298                         return true;
 299                 }
 300                 break;
 301
 302         case GDK_SCROLL_DOWN:
 303                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomVerticalModifier)) {
 304                         /* See Editor::_stepping_axis_view for notes on this hack */
 305                         Editor& e = dynamic_cast<Editor&> (_editor);
 306                         if (!e.stepping_axis_view ()) {
 307                                 e.set_stepping_axis_view (this);
 308                         }
 309                         e.stepping_axis_view()->step_height (true);
 310                         return true;
 311                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 312                         _editor.scroll_tracks_down_line();
 313                         return true;
 314                 }
 315                 break;
 316
 317         default:
 318                 /* no handling for left/right, yet */
 319                 break;
 320         }
 321
 322         return false;
 323 }
 324
 325 bool
 326 TimeAxisView::controls_ebox_button_press (GdkEventButton* event)
 327 {
 328         if ((event->button == 1 && event->type == GDK_2BUTTON_PRESS) || Keyboard::is_edit_event (event)) {
 329                 /* see if it is inside the name label */
 330                 if (name_label.is_ancestor (controls_ebox)) {
 331                         int nlx;
 332                         int nly;
 333                         controls_ebox.translate_coordinates (name_label, event->x, event->y, nlx, nly);
 334                         Gtk::Allocation a = name_label.get_allocation ();
 335                         if (nlx > 0 && nlx < a.get_width() && nly > 0 && nly < a.get_height()) {
 336                                 begin_name_edit ();
 337                                 _ebox_release_can_act = false;
 338                                 return true;
 339                         }
 340                 }
 341
 342         }
 343
 344         _ebox_release_can_act = true;
 345
 346         if (maybe_set_cursor (event->y) > 0) {
 347                 _resize_drag_start = event->y_root;
 348         }
 349
 350         return true;
 351 }
 352
 353 void
 354 TimeAxisView::idle_resize (uint32_t h)
 355 {
 356         set_height (h);
 357 }
 358
 359
 360 bool
 361 TimeAxisView::controls_ebox_motion (GdkEventMotion* ev)
 362 {
 363         if (_resize_drag_start >= 0) {
 364
 365                 /* (ab)use the DragManager to do autoscrolling - basically we
 366                  * are pretending that the drag is taking place over the canvas
 367                  * (which perhaps in the glorious future, when track headers
 368                  * and the canvas are unified, will actually be true.)
 369                  *
 370                  * First, translate the event coordinates into the canvas
 371                  * coordinate space that DragManager::motion_handler is
 372                  * expecting (this requires translation into the *window*
 373                  * coordinates for the track canvas window, and then conversion
 374                  * from window to canvas coordinate spaces).
 375                  *
 376                  * Then fake a DragManager motion event so that when
 377                  * maybe_autoscroll asks DragManager for the current pointer
 378                  * position it will get the correct answers.
 379                 */
 380
 381                 int tx, ty;
 382                 controls_ebox.translate_coordinates (*_editor.get_track_canvas(), ev->x, ev->y, tx, ty);
 383
 384                 /* x-axis of track headers is not shared with the canvas, but
 385                    the y-axis is, so we we can get a valid translation here.
 386                 */
 387
 388                 Duple canvas_coord = _editor.get_track_canvas()->canvas()->window_to_canvas (Duple (tx, ty));
 389                 ev->y = (int) floor (canvas_coord.y);
 390
 391                 _editor.drags()->motion_handler ((GdkEvent *) ev, false);
 392                 _editor.maybe_autoscroll (false, true, false, ev->y_root < _resize_drag_start);
 393
 394                 /* now do the actual TAV resize */
 395                 int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
 396                 _editor.add_to_idle_resize (this, delta);
 397                 _resize_drag_start = ev->y_root;
 398         } else {
 399                 /* not dragging but ... */
 400                 maybe_set_cursor (ev->y);
 401         }
 402
 403         gdk_event_request_motions(ev);
 404         return true;
 405 }
 406
 407 bool
 408 TimeAxisView::controls_ebox_leave (GdkEventCrossing*)
 409 {
 410         if (_have_preresize_cursor) {
 411                 gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
 412                 _have_preresize_cursor = false;
 413         }
 414         return true;
 415 }
 416
 417 bool
 418 TimeAxisView::maybe_set_cursor (int y)
 419 {
 420         /* XXX no Gtkmm Gdk::Window::get_cursor() */
 421         Glib::RefPtr<Gdk::Window> win = controls_ebox.get_window();
 422
 423         if (y > (gint) floor (controls_ebox.get_height() * 0.75)) {
 424
 425                 /* y-coordinate in lower 25% */
 426
 427                 if (!_have_preresize_cursor) {
 428                         _preresize_cursor = gdk_window_get_cursor (win->gobj());
 429                         _have_preresize_cursor = true;
 430                         win->set_cursor (Gdk::Cursor(Gdk::SB_V_DOUBLE_ARROW));
 431                 }
 432
 433                 return 1;
 434
 435         } else if (_have_preresize_cursor) {
 436                 gdk_window_set_cursor (win->gobj(), _preresize_cursor);
 437                 _have_preresize_cursor = false;
 438
 439                 return -1;
 440         }
 441
 442         return 0;
 443 }
 444
 445 bool
 446 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 447 {
 448         if (_resize_drag_start >= 0) {
 449                 if (_have_preresize_cursor) {
 450                         gdk_window_set_cursor (controls_ebox.get_window()->gobj(), _preresize_cursor);
 451                         _preresize_cursor = 0;
 452                         _have_preresize_cursor = false;
 453                 }
 454                 _editor.stop_canvas_autoscroll ();
 455                 _resize_drag_start = -1;
 456         }
 457
 458         if (!_ebox_release_can_act) {
 459                 return true;
 460         }
 461
 462         switch (ev->button) {
 463         case 1:
 464                 selection_click (ev);
 465                 break;
 466
 467         case 3:
 468                 popup_display_menu (ev->time);
 469                 break;
 470         }
 471
 472         return true;
 473 }
 474
 475 void
 476 TimeAxisView::selection_click (GdkEventButton* ev)
 477 {
 478         Selection::Operation op = ArdourKeyboard::selection_type (ev->state);
 479         _editor.set_selected_track (*this, op, false);
 480 }
 481
 482
 483 /** Steps through the defined heights for this TrackView.
 484  *  @param coarser true if stepping should decrease in size, otherwise false.
 485  */
 486 void
 487 TimeAxisView::step_height (bool coarser)
 488 {
 489         static const uint32_t step = 25;
 490
 491         if (coarser) {
 492
 493                 if (height <= preset_height (HeightSmall)) {
 494                         return;
 495                 } else if (height <= preset_height (HeightNormal) && height > preset_height (HeightSmall)) {
 496                         set_height_enum (HeightSmall);
 497                 } else {
 498                         set_height (height - step);
 499                 }
 500
 501         } else {
 502
 503                 if (height <= preset_height(HeightSmall)) {
 504                         set_height_enum (HeightNormal);
 505                 } else {
 506                         set_height (height + step);
 507                 }
 508
 509         }
 510 }
 511
 512 void
 513 TimeAxisView::set_height_enum (Height h, bool apply_to_selection)
 514 {
 515         if (apply_to_selection) {
 516                 _editor.get_selection().tracks.foreach_time_axis (boost::bind (&TimeAxisView::set_height_enum, _1, h, false));
 517         } else {
 518                 set_height (preset_height (h));
 519         }
 520 }
 521
 522 void
 523 TimeAxisView::set_height (uint32_t h)
 524 {
 525         if (h < preset_height (HeightSmall)) {
 526                 h = preset_height (HeightSmall);
 527         }
 528
 529         time_axis_vbox.property_height_request () = h;
 530         height = h;
 531
 532         char buf[32];
 533         snprintf (buf, sizeof (buf), "%u", height);
 534         set_gui_property ("height", buf);
 535
 536         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 537                 (*i)->set_height ();
 538         }
 539
 540         if (selection_group->visible ()) {
 541                 /* resize the selection rect */
 542                 show_selection (_editor.get_selection().time);
 543         }
 544 }
 545
 546 bool
 547 TimeAxisView::name_entry_key_press (GdkEventKey* ev)
 548 {
 549         /* steal escape, tabs from GTK */
 550
 551         switch (ev->keyval) {
 552         case GDK_Escape:
 553         case GDK_ISO_Left_Tab:
 554         case GDK_Tab:
 555                 return true;
 556         }
 557         return false;
 558 }
 559
 560 bool
 561 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 562 {
 563         TrackViewList::iterator i;
 564
 565         switch (ev->keyval) {
 566         case GDK_Escape:
 567                 end_name_edit (RESPONSE_CANCEL);
 568                 return true;
 569
 570         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 571          * generates a different ev->keyval, rather than setting
 572          * ev->state.
 573          */
 574         case GDK_ISO_Left_Tab:
 575                 end_name_edit (RESPONSE_APPLY);
 576                 return true;
 577
 578         case GDK_Tab:
 579                 end_name_edit (RESPONSE_ACCEPT);
 580                 return true;
 581         default:
 582                 break;
 583         }
 584
 585         return false;
 586 }
 587
 588 bool
 589 TimeAxisView::name_entry_focus_out (GdkEventFocus*)
 590 {
 591         end_name_edit (RESPONSE_OK);
 592         return false;
 593 }
 594
 595 void
 596 TimeAxisView::begin_name_edit ()
 597 {
 598         if (name_entry) {
 599                 return;
 600         }
 601
 602         if (can_edit_name()) {
 603
 604                 name_entry = manage (new Gtkmm2ext::FocusEntry);
 605
 606                 name_entry->set_name ("EditorTrackNameDisplay");
 607                 name_entry->signal_key_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_press), false);
 608                 name_entry->signal_key_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_release), false);
 609                 name_entry->signal_focus_out_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 610                 name_entry->set_text (name_label.get_text());
 611                 name_entry->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &TimeAxisView::end_name_edit), RESPONSE_OK));
 612
 613                 if (name_label.is_ancestor (name_hbox)) {
 614                         name_hbox.remove (name_label);
 615                 }
 616
 617                 name_hbox.pack_start (*name_entry);
 618                 name_entry->show ();
 619
 620                 name_entry->select_region (0, -1);
 621                 name_entry->set_state (STATE_SELECTED);
 622                 name_entry->grab_focus ();
 623                 name_entry->start_editing (0);
 624         }
 625 }
 626
 627 void
 628 TimeAxisView::end_name_edit (int response)
 629 {
 630         if (!name_entry) {
 631                 return;
 632         }
 633
 634         bool edit_next = false;
 635         bool edit_prev = false;
 636
 637         switch (response) {
 638         case RESPONSE_CANCEL:
 639                 break;
 640         case RESPONSE_OK:
 641                 name_entry_changed ();
 642                 break;
 643         case RESPONSE_ACCEPT:
 644                 name_entry_changed ();
 645                 edit_next = true;
 646         case RESPONSE_APPLY:
 647                 name_entry_changed ();
 648                 edit_prev = true;
 649         }
 650
 651         /* this will delete the name_entry. but it will also drop focus, which
 652          * will cause another callback to this function, so set name_entry = 0
 653          * first to ensure we don't double-remove etc. etc.
 654          */
 655
 656         Gtk::Entry* tmp = name_entry;
 657         name_entry = 0;
 658         name_hbox.remove (*tmp);
 659
 660         /* put the name label back */
 661
 662         name_hbox.pack_start (name_label);
 663         name_label.show ();
 664
 665         if (edit_next) {
 666
 667                 TrackViewList const & allviews = _editor.get_track_views ();
 668                 TrackViewList::const_iterator i = find (allviews.begin(), allviews.end(), this);
 669
 670                 if (i != allviews.end()) {
 671
 672                         do {
 673                                 if (++i == allviews.end()) {
 674                                         return;
 675                                 }
 676
 677                                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*>(*i);
 678
 679                                 if (rtav && rtav->route()->record_enabled()) {
 680                                         continue;
 681                                 }
 682
 683                                 if (!(*i)->hidden()) {
 684                                         break;
 685                                 }
 686
 687                         } while (true);
 688                 }
 689
 690                 if ((i != allviews.end()) && (*i != this) && !(*i)->hidden()) {
 691                         _editor.ensure_time_axis_view_is_visible (**i);
 692                         (*i)->begin_name_edit ();
 693                 }
 694
 695         } else if (edit_prev) {
 696
 697                 TrackViewList const & allviews = _editor.get_track_views ();
 698                 TrackViewList::const_iterator i = find (allviews.begin(), allviews.end(), this);
 699
 700                 if (i != allviews.begin()) {
 701                         do {
 702                                 if (i == allviews.begin()) {
 703                                         return;
 704                                 }
 705
 706                                 --i;
 707
 708                                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*>(*i);
 709
 710                                 if (rtav && rtav->route()->record_enabled()) {
 711                                         continue;
 712                                 }
 713
 714                                 if (!(*i)->hidden()) {
 715                                         break;
 716                                 }
 717
 718                         } while (true);
 719                 }
 720
 721                 if ((i != allviews.end()) && (*i != this) && !(*i)->hidden()) {
 722                         _editor.ensure_time_axis_view_is_visible (**i);
 723                         (*i)->begin_name_edit ();
 724                 }
 725         }
 726 }
 727
 728 void
 729 TimeAxisView::name_entry_changed ()
 730 {
 731 }
 732
 733 bool
 734 TimeAxisView::can_edit_name () const
 735 {
 736         return true;
 737 }
 738
 739 void
 740 TimeAxisView::conditionally_add_to_selection ()
 741 {
 742         Selection& s (_editor.get_selection ());
 743
 744         if (!s.selected (this)) {
 745                 _editor.set_selected_track (*this, Selection::Set);
 746         }
 747 }
 748
 749 void
 750 TimeAxisView::popup_display_menu (guint32 when)
 751 {
 752         conditionally_add_to_selection ();
 753
 754         build_display_menu ();
 755         display_menu->popup (1, when);
 756 }
 757
 758 void
 759 TimeAxisView::set_selected (bool yn)
 760 {
 761         if (yn == _selected) {
 762                 return;
 763         }
 764
 765         Selectable::set_selected (yn);
 766
 767         if (_selected) {
 768                 controls_ebox.set_name (controls_base_selected_name);
 769                 time_axis_vbox.set_name (controls_base_selected_name);
 770                 controls_vbox.set_name (controls_base_selected_name);
 771         } else {
 772                 controls_ebox.set_name (controls_base_unselected_name);
 773                 time_axis_vbox.set_name (controls_base_unselected_name);
 774                 controls_vbox.set_name (controls_base_unselected_name);
 775                 hide_selection ();
 776
 777                 /* children will be set for the yn=true case. but when deselecting
 778                    the editor only has a list of top-level trackviews, so we
 779                    have to do this here.
 780                 */
 781
 782                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 783                         (*i)->set_selected (false);
 784                 }
 785         }
 786 }
 787
 788 void
 789 TimeAxisView::build_display_menu ()
 790 {
 791         using namespace Menu_Helpers;
 792
 793         delete display_menu;
 794
 795         display_menu = new Menu;
 796         display_menu->set_name ("ArdourContextMenu");
 797
 798         // Just let implementing classes define what goes into the manu
 799 }
 800
 801 void
 802 TimeAxisView::set_samples_per_pixel (double fpp)
 803 {
 804         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 805                 (*i)->set_samples_per_pixel (fpp);
 806         }
 807 }
 808
 809 void
 810 TimeAxisView::show_timestretch (framepos_t start, framepos_t end, int layers, int layer)
 811 {
 812         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 813                 (*i)->show_timestretch (start, end, layers, layer);
 814         }
 815 }
 816
 817 void
 818 TimeAxisView::hide_timestretch ()
 819 {
 820         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 821                 (*i)->hide_timestretch ();
 822         }
 823 }
 824
 825 void
 826 TimeAxisView::show_selection (TimeSelection& ts)
 827 {
 828         double x1;
 829         double x2;
 830         double y2;
 831         SelectionRect *rect;
 832
 833         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 834                 (*i)->show_selection (ts);
 835         }
 836
 837         if (selection_group->visible ()) {
 838                 while (!used_selection_rects.empty()) {
 839                         free_selection_rects.push_front (used_selection_rects.front());
 840                         used_selection_rects.pop_front();
 841                         free_selection_rects.front()->rect->hide();
 842                         free_selection_rects.front()->start_trim->hide();
 843                         free_selection_rects.front()->end_trim->hide();
 844                 }
 845                 selection_group->hide();
 846         }
 847
 848         selection_group->show();
 849         selection_group->raise_to_top();
 850
 851         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 852                 framepos_t start, end;
 853                 framecnt_t cnt;
 854
 855                 start = (*i).start;
 856                 end = (*i).end;
 857                 cnt = end - start + 1;
 858
 859                 rect = get_selection_rect ((*i).id);
 860
 861                 x1 = _editor.sample_to_pixel (start);
 862                 x2 = _editor.sample_to_pixel (start + cnt - 1);
 863                 y2 = current_height();
 864
 865                 rect->rect->set (ArdourCanvas::Rect (x1, 1, x2, y2));
 866
 867                 // trim boxes are at the top for selections
 868
 869                 if (x2 > x1) {
 870                         rect->start_trim->set (ArdourCanvas::Rect (x1, 1, x1 + trim_handle_size, y2));
 871                         rect->end_trim->set (ArdourCanvas::Rect (x2 - trim_handle_size, 1, x2, y2));
 872
 873                         rect->start_trim->show();
 874                         rect->end_trim->show();
 875                 } else {
 876                         rect->start_trim->hide();
 877                         rect->end_trim->hide();
 878                 }
 879
 880                 rect->rect->show ();
 881                 used_selection_rects.push_back (rect);
 882         }
 883 }
 884
 885 void
 886 TimeAxisView::reshow_selection (TimeSelection& ts)
 887 {
 888         show_selection (ts);
 889
 890         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 891                 (*i)->show_selection (ts);
 892         }
 893 }
 894
 895 void
 896 TimeAxisView::hide_selection ()
 897 {
 898         if (selection_group->visible ()) {
 899                 while (!used_selection_rects.empty()) {
 900                         free_selection_rects.push_front (used_selection_rects.front());
 901                         used_selection_rects.pop_front();
 902                         free_selection_rects.front()->rect->hide();
 903                         free_selection_rects.front()->start_trim->hide();
 904                         free_selection_rects.front()->end_trim->hide();
 905                 }
 906                 selection_group->hide();
 907         }
 908
 909         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 910                 (*i)->hide_selection ();
 911         }
 912 }
 913
 914 void
 915 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 916 {
 917         /* find the selection rect this is for. we have the item corresponding to one
 918            of the trim handles.
 919          */
 920
 921         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 922                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 923
 924                         /* make one trim handle be "above" the other so that if they overlap,
 925                            the top one is the one last used.
 926                         */
 927
 928                         (*i)->rect->raise_to_top ();
 929                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 930                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 931
 932                         break;
 933                 }
 934         }
 935 }
 936
 937 SelectionRect *
 938 TimeAxisView::get_selection_rect (uint32_t id)
 939 {
 940         SelectionRect *rect;
 941
 942         /* check to see if we already have a visible rect for this particular selection ID */
 943
 944         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 945                 if ((*i)->id == id) {
 946                         return (*i);
 947                 }
 948         }
 949
 950         /* ditto for the free rect list */
 951
 952         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 953                 if ((*i)->id == id) {
 954                         SelectionRect* ret = (*i);
 955                         free_selection_rects.erase (i);
 956                         return ret;
 957                 }
 958         }
 959
 960         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 961
 962         if (free_selection_rects.empty()) {
 963
 964                 rect = new SelectionRect;
 965
 966                 rect->rect = new ArdourCanvas::Rectangle (selection_group);
 967                 CANVAS_DEBUG_NAME (rect->rect, "selection rect");
 968                 rect->rect->set_outline (false);
 969                 rect->rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_SelectionRect());
 970
 971                 rect->start_trim = new ArdourCanvas::Rectangle (selection_group);
 972                 CANVAS_DEBUG_NAME (rect->rect, "selection rect start trim");
 973                 rect->start_trim->set_outline (false);
 974                 rect->start_trim->set_fill (false);
 975
 976                 rect->end_trim = new ArdourCanvas::Rectangle (selection_group);
 977                 CANVAS_DEBUG_NAME (rect->rect, "selection rect end trim");
 978                 rect->end_trim->set_outline (false);
 979                 rect->end_trim->set_fill (false);
 980
 981                 free_selection_rects.push_front (rect);
 982
 983                 rect->rect->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 984                 rect->start_trim->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 985                 rect->end_trim->Event.connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 986         }
 987
 988         rect = free_selection_rects.front();
 989         rect->id = id;
 990         free_selection_rects.pop_front();
 991         return rect;
 992 }
 993
 994 struct null_deleter { void operator()(void const *) const {} };
 995
 996 bool
 997 TimeAxisView::is_child (TimeAxisView* tav)
 998 {
 999         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
1000 }
1001
1002 void
1003 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
1004 {
1005         children.push_back (child);
1006 }
1007
1008 void
1009 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
1010 {
1011         Children::iterator i;
1012
1013         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
1014                 children.erase (i);
1015         }
1016 }
1017
1018 /** Get selectable things within a given range.
1019  *  @param start Start time in session frames.
1020  *  @param end End time in session frames.
1021  *  @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
1022  *  @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
1023  *  @param result Filled in with selectable things.
1024  */
1025 void
1026 TimeAxisView::get_selectables (framepos_t /*start*/, framepos_t /*end*/, double /*top*/, double /*bot*/, list<Selectable*>& /*result*/)
1027 {
1028         return;
1029 }
1030
1031 void
1032 TimeAxisView::get_inverted_selectables (Selection& /*sel*/, list<Selectable*>& /*result*/)
1033 {
1034         return;
1035 }
1036
1037 void
1038 TimeAxisView::add_ghost (RegionView* rv)
1039 {
1040         GhostRegion* gr = rv->add_ghost (*this);
1041
1042         if (gr) {
1043                 ghosts.push_back(gr);
1044         }
1045 }
1046
1047 void
1048 TimeAxisView::remove_ghost (RegionView* rv)
1049 {
1050         rv->remove_ghost_in (*this);
1051 }
1052
1053 void
1054 TimeAxisView::erase_ghost (GhostRegion* gr)
1055 {
1056         if (in_destructor) {
1057                 return;
1058         }
1059
1060         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
1061                 if ((*i) == gr) {
1062                         ghosts.erase (i);
1063                         break;
1064                 }
1065         }
1066 }
1067
1068 bool
1069 TimeAxisView::touched (double top, double bot)
1070 {
1071         /* remember: this is X Window - coordinate space starts in upper left and moves down.
1072           y_position is the "origin" or "top" of the track.
1073         */
1074
1075         double mybot = _y_position + current_height();
1076
1077         return ((_y_position <= bot && _y_position >= top) ||
1078                 ((mybot <= bot) && (top < mybot)) ||
1079                 (mybot >= bot && _y_position < top));
1080 }
1081
1082 void
1083 TimeAxisView::set_parent (TimeAxisView& p)
1084 {
1085         parent = &p;
1086 }
1087
1088 void
1089 TimeAxisView::reset_height ()
1090 {
1091         set_height (height);
1092
1093         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1094                 (*i)->set_height ((*i)->height);
1095         }
1096 }
1097
1098 void
1099 TimeAxisView::compute_heights ()
1100 {
1101         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1102         Gtk::Table two_row_table (2, 8);
1103         Gtk::Table one_row_table (1, 8);
1104         Button* buttons[5];
1105         const int border_width = 2;
1106
1107         const int separator_height = 2;
1108         extra_height = (2 * border_width) + separator_height;
1109
1110         window.add (one_row_table);
1111
1112         one_row_table.set_border_width (border_width);
1113         one_row_table.set_row_spacings (0);
1114         one_row_table.set_col_spacings (0);
1115         one_row_table.set_homogeneous (true);
1116
1117         two_row_table.set_border_width (border_width);
1118         two_row_table.set_row_spacings (0);
1119         two_row_table.set_col_spacings (0);
1120         two_row_table.set_homogeneous (true);
1121
1122         for (int i = 0; i < 5; ++i) {
1123                 buttons[i] = manage (new Button (X_("f")));
1124                 buttons[i]->set_name ("TrackMuteButton");
1125         }
1126
1127         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1128
1129         one_row_table.show_all ();
1130         Gtk::Requisition req(one_row_table.size_request ());
1131
1132         // height required to show 1 row of buttons
1133         button_height = req.height;
1134 }
1135
1136 void
1137 TimeAxisView::color_handler ()
1138 {
1139         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); i++) {
1140                 (*i)->set_colors();
1141         }
1142
1143         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1144
1145                 (*i)->rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_SelectionRect());
1146                 (*i)->rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1147
1148                 (*i)->start_trim->set_fill_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1149                 (*i)->start_trim->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1150
1151                 (*i)->end_trim->set_fill_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1152                 (*i)->end_trim->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1153         }
1154
1155         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1156
1157                 (*i)->rect->set_fill_color (ARDOUR_UI::config()->get_canvasvar_SelectionRect());
1158                 (*i)->rect->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1159
1160                 (*i)->start_trim->set_fill_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1161                 (*i)->start_trim->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1162
1163                 (*i)->end_trim->set_fill_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1164                 (*i)->end_trim->set_outline_color (ARDOUR_UI::config()->get_canvasvar_Selection());
1165         }
1166 }
1167
1168 /** @return Pair: TimeAxisView, layer index.
1169  * TimeAxisView is non-0 if this object covers y, or one of its children does.
1170  * If the covering object is a child axis, then the child is returned.
1171  * TimeAxisView is 0 otherwise.
1172  * Layer index is the layer number (possibly fractional) if the TimeAxisView is valid
1173  * and is in stacked or expanded * region display mode, otherwise 0.
1174  */
1175 std::pair<TimeAxisView*, double>
1176 TimeAxisView::covers_y_position (double y)
1177 {
1178         if (hidden()) {
1179                 return std::make_pair ((TimeAxisView *) 0, 0);
1180         }
1181
1182         if (_y_position <= y && y < (_y_position + height)) {
1183
1184                 /* work out the layer index if appropriate */
1185                 double l = 0;
1186                 switch (layer_display ()) {
1187                 case Overlaid:
1188                         break;
1189                 case Stacked:
1190                         if (view ()) {
1191                                 /* compute layer */
1192                                 l = layer_t ((_y_position + height - y) / (view()->child_height ()));
1193                                 /* clamp to max layers to be on the safe side; sometimes the above calculation
1194                                    returns a too-high value */
1195                                 if (l >= view()->layers ()) {
1196                                         l = view()->layers() - 1;
1197                                 }
1198                         }
1199                         break;
1200                 case Expanded:
1201                         if (view ()) {
1202                                 int const n = floor ((_y_position + height - y) / (view()->child_height ()));
1203                                 l = n * 0.5 - 0.5;
1204                                 if (l >= (view()->layers() - 0.5)) {
1205                                         l = view()->layers() - 0.5;
1206                                 }
1207                         }
1208                         break;
1209                 }
1210
1211                 return std::make_pair (this, l);
1212         }
1213
1214         for (Children::const_iterator i = children.begin(); i != children.end(); ++i) {
1215
1216                 std::pair<TimeAxisView*, int> const r = (*i)->covers_y_position (y);
1217                 if (r.first) {
1218                         return r;
1219                 }
1220         }
1221
1222         return std::make_pair ((TimeAxisView *) 0, 0);
1223 }
1224
1225
1226 uint32_t
1227 TimeAxisView::preset_height (Height h)
1228 {
1229         switch (h) {
1230         case HeightLargest:
1231                 return (button_height * 2) + extra_height + 260;
1232         case HeightLarger:
1233                 return (button_height * 2) + extra_height + 160;
1234         case HeightLarge:
1235                 return (button_height * 2) + extra_height + 60;
1236         case HeightNormal:
1237                 return (button_height * 2) + extra_height + 10;
1238         case HeightSmall:
1239                 return button_height + extra_height;
1240         }
1241
1242         /* NOTREACHED */
1243         return 0;
1244 }
1245
1246 /** @return Child time axis views that are not hidden */
1247 TimeAxisView::Children
1248 TimeAxisView::get_child_list ()
1249 {
1250         Children c;
1251
1252         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1253                 if (!(*i)->hidden()) {
1254                         c.push_back(*i);
1255                 }
1256         }
1257
1258         return c;
1259 }
1260
1261 void
1262 TimeAxisView::build_size_menu ()
1263 {
1264         if (_size_menu && _size_menu->gobj ()) {
1265                 return;
1266         }
1267
1268         delete _size_menu;
1269
1270         using namespace Menu_Helpers;
1271
1272         _size_menu = new Menu;
1273         _size_menu->set_name ("ArdourContextMenu");
1274         MenuList& items = _size_menu->items();
1275
1276         items.push_back (MenuElem (_("Largest"), sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLargest, true)));
1277         items.push_back (MenuElem (_("Larger"),  sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLarger, true)));
1278         items.push_back (MenuElem (_("Large"),   sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightLarge, true)));
1279         items.push_back (MenuElem (_("Normal"),  sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightNormal, true)));
1280         items.push_back (MenuElem (_("Small"),   sigc::bind (sigc::mem_fun (*this, &TimeAxisView::set_height_enum), HeightSmall, true)));
1281 }
1282
1283 void
1284 TimeAxisView::reset_visual_state ()
1285 {
1286         /* this method is not required to trigger a global redraw */
1287
1288         string str = gui_property ("height");
1289
1290         if (!str.empty()) {
1291                 set_height (atoi (str));
1292         } else {
1293                 set_height (preset_height (HeightNormal));
1294         }
1295 }
1296
1297 TrackViewList
1298 TrackViewList::filter_to_unique_playlists ()
1299 {
1300         std::set<boost::shared_ptr<ARDOUR::Playlist> > playlists;
1301         TrackViewList ts;
1302
1303         for (iterator i = begin(); i != end(); ++i) {
1304                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
1305                 if (!rtav) {
1306                         /* not a route: include it anyway */
1307                         ts.push_back (*i);
1308                 } else {
1309                         boost::shared_ptr<ARDOUR::Track> t = rtav->track();
1310                         if (t) {
1311                                 if (playlists.insert (t->playlist()).second) {
1312                                         /* playlist not seen yet */
1313                                         ts.push_back (*i);
1314                                 }
1315                         } else {
1316                                 /* not a track: include it anyway */
1317                                 ts.push_back (*i);
1318                         }
1319                 }
1320         }
1321         return ts;
1322 }