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     $Id$
  19 */
  20
  21 #include <cstdlib>
  22 #include <cmath>
  23 #include <algorithm>
  24 #include <string>
  25 #include <list>
  26
  27 #include <libgnomecanvasmm/libgnomecanvasmm.h>
  28 #include <libgnomecanvasmm/canvas.h>
  29 #include <libgnomecanvasmm/item.h>
  30
  31 #include <pbd/error.h>
  32
  33 #include <gtkmm2ext/utils.h>
  34 #include <gtkmm2ext/selector.h>
  35 #include <gtkmm2ext/stop_signal.h>
  36
  37 #include <ardour/session.h>
  38 #include <ardour/utils.h>
  39 #include <ardour/ladspa_plugin.h>
  40 #include <ardour/insert.h>
  41 #include <ardour/location.h>
  42
  43 #include "ardour_ui.h"
  44 #include "public_editor.h"
  45 #include "time_axis_view.h"
  46 #include "simplerect.h"
  47 #include "selection.h"
  48 #include "keyboard.h"
  49 #include "rgb_macros.h"
  50 #include "utils.h"
  51
  52 #include "i18n.h"
  53
  54 using namespace Gtk;
  55 using namespace Gdk;
  56 using namespace sigc;
  57 using namespace ARDOUR;
  58 using namespace Editing;
  59 using namespace ArdourCanvas;
  60
  61 const double trim_handle_size = 6.0; /* pixels */
  62
  63 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  64         : AxisView (sess),
  65           editor (ed),
  66           controls_table (2, 9)
  67 {
  68         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  69
  70         selection_group = new Group (*canvas_display);
  71         selection_group->hide();
  72
  73         control_parent = 0;
  74         display_menu = 0;
  75         size_menu = 0;
  76         _marked_for_display = false;
  77         _hidden = false;
  78         height = 0;
  79         effective_height = 0;
  80         parent = rent;
  81         _has_state = false;
  82         last_name_entry_key_press_event = 0;
  83
  84         /*
  85           Create the standard LHS Controls
  86           We create the top-level container and name add the name label here,
  87           subclasses can add to the layout as required
  88         */
  89
  90         name_entry.set_name ("EditorTrackNameDisplay");
  91         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
  92         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
  93         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
  94         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
  95         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
  96         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
  97         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
  98
  99         name_label.set_name ("TrackLabel");
 100         name_label.set_alignment (0.0, 0.5);
 101
 102         // name_hbox.set_border_width (2);
 103         // name_hbox.set_spacing (5);
 104
 105         /* typically, either name_label OR name_entry are visible,
 106            but not both. its up to derived classes to show/hide them as they
 107            wish.
 108         */
 109
 110         name_hbox.pack_start (name_label, true, true);
 111         name_hbox.pack_start (name_entry, true, true);
 112         name_hbox.show ();
 113
 114         controls_table.set_border_width (2);
 115         controls_table.set_row_spacings (0);
 116         controls_table.set_col_spacings (0);
 117         controls_table.set_homogeneous (true);
 118         controls_table.show ();
 119
 120         controls_table.attach (name_hbox, 0, 5, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 121
 122         controls_table.show ();
 123
 124         controls_vbox.pack_start (controls_table, false, false);
 125         controls_vbox.show ();
 126
 127         controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 128         controls_ebox.add (controls_vbox);
 129         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 130         controls_ebox.set_flags (CAN_FOCUS);
 131
 132         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 133         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll));
 134
 135         controls_lhs_pad.set_name ("TimeAxisViewControlsPadding");
 136         controls_hbox.pack_start (controls_lhs_pad,false,false);
 137         controls_hbox.pack_start (controls_ebox,true,true);
 138         controls_hbox.show ();
 139
 140         controls_frame.add (controls_hbox);
 141         controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 142         controls_frame.set_shadow_type (Gtk::SHADOW_IN);
 143 }
 144
 145 TimeAxisView::~TimeAxisView()
 146 {
 147         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 148                 delete *i;
 149         }
 150
 151         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 152                 delete (*i)->rect;
 153                 delete (*i)->start_trim;
 154                 delete (*i)->end_trim;
 155
 156         }
 157
 158         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 159                 delete (*i)->rect;
 160                 delete (*i)->start_trim;
 161                 delete (*i)->end_trim;
 162         }
 163
 164         if (selection_group) {
 165                 delete selection_group;
 166                 selection_group = 0;
 167         }
 168
 169         if (canvas_display) {
 170                 delete canvas_display;
 171                 canvas_display = 0;
 172         }
 173
 174         if (display_menu) {
 175                 delete display_menu;
 176                 display_menu = 0;
 177         }
 178
 179         if (size_menu) {
 180                 delete size_menu;
 181                 size_menu = 0;
 182         }
 183 }
 184
 185 guint32
 186 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 187 {
 188         gdouble ix1, ix2, iy1, iy2;
 189         effective_height = 0;
 190
 191         if (control_parent) {
 192                 control_parent->reorder_child (controls_frame, nth);
 193         } else {
 194                 control_parent = parent;
 195                 parent->pack_start (controls_frame, false, false);
 196                 parent->reorder_child (controls_frame, nth);
 197         }
 198         controls_frame.show ();
 199         controls_ebox.show ();
 200
 201         /* the coordinates used here are in the system of the
 202            item's parent ...
 203         */
 204
 205         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 206         Group* pg = canvas_display->property_parent();
 207         pg->i2w (ix1, iy1);
 208
 209         if (iy1 < 0) {
 210                 iy1 = 0;
 211         }
 212
 213         canvas_display->move (0.0, y - iy1);
 214         canvas_display->show();/* XXX not necessary */
 215         y_position = y;
 216         order = nth;
 217         _hidden = false;
 218
 219         effective_height = height;
 220
 221         /* now show children */
 222
 223         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 224
 225                 if ((*i)->marked_for_display()) {
 226                         (*i)->canvas_display->show();
 227                 }
 228
 229                 if (canvas_item_visible ((*i)->canvas_display)) {
 230                         ++nth;
 231                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 232                 }
 233         }
 234
 235         return effective_height;
 236 }
 237
 238 bool
 239 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 240 {
 241         switch (ev->direction) {
 242         case GDK_SCROLL_UP:
 243                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 244                         step_height (true);
 245                         return true;
 246                 }
 247                 break;
 248
 249         case GDK_SCROLL_DOWN:
 250                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 251                         step_height (false);
 252                         return true;
 253                 }
 254                 break;
 255
 256         default:
 257                 /* no handling for left/right, yet */
 258                 break;
 259         }
 260
 261         return false;
 262 }
 263
 264 bool
 265 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 266 {
 267         cerr << "controls ebox button release button " << ev->button << endl;
 268
 269         switch (ev->button) {
 270         case 1:
 271                 selection_click (ev);
 272                 break;
 273
 274         case 3:
 275                 popup_display_menu (ev->time);
 276                 break;
 277         }
 278
 279         return true;
 280 }
 281
 282 void
 283 TimeAxisView::selection_click (GdkEventButton* ev)
 284 {
 285         if (Keyboard::modifier_state_contains (ev->state, Keyboard::Shift)) {
 286
 287                 if (editor.get_selection().selected (this)) {
 288                         editor.get_selection().remove (this);
 289                 } else {
 290                         editor.get_selection().add (this);
 291                 }
 292
 293         } else {
 294
 295                 editor.get_selection().set (this);
 296         }
 297 }
 298
 299 void
 300 TimeAxisView::hide ()
 301 {
 302         if (_hidden) {
 303                 return;
 304         }
 305
 306         canvas_display->hide();
 307         controls_frame.hide ();
 308
 309         if (control_parent) {
 310                 control_parent->remove (controls_frame);
 311                 control_parent = 0;
 312         }
 313
 314         y_position = -1;
 315         _hidden = true;
 316
 317         /* now hide children */
 318
 319         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 320                 (*i)->hide ();
 321         }
 322
 323         Hiding ();
 324 }
 325
 326 void
 327 TimeAxisView::step_height (bool bigger)
 328 {
 329         switch (height) {
 330         case Largest:
 331                 if (!bigger) set_height (Large);
 332                 break;
 333         case Large:
 334                 if (bigger) set_height (Largest);
 335                 else set_height (Larger);
 336                 break;
 337         case Larger:
 338                 if (bigger) set_height (Large);
 339                 else set_height (Normal);
 340                 break;
 341         case Normal:
 342                 if (bigger) set_height (Larger);
 343                 else set_height (Smaller);
 344                 break;
 345         case Smaller:
 346                 if (bigger) set_height (Normal);
 347                 else set_height (Small);
 348                 break;
 349         case Small:
 350                 if (bigger) set_height (Smaller);
 351                 break;
 352         }
 353 }
 354
 355
 356 void
 357 TimeAxisView::set_height (TrackHeight h)
 358 {
 359         height = (guint32) h;
 360         controls_frame.set_size_request (-1, height);
 361
 362         if (canvas_item_visible (selection_group)) {
 363                 /* resize the selection rect */
 364                 show_selection (editor.get_selection().time);
 365         }
 366
 367 //      for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 368 //              (*i)->set_height (h);
 369 //      }
 370
 371 }
 372
 373 bool
 374 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 375 {
 376         switch (ev->keyval) {
 377         case GDK_Tab:
 378         case GDK_Up:
 379         case GDK_Down:
 380                 name_entry_changed ();
 381                 return true;
 382
 383         default:
 384                 break;
 385         }
 386
 387 #ifdef TIMEOUT_NAME_EDIT
 388         /* adapt the timeout to reflect the user's typing speed */
 389
 390         guint32 name_entry_timeout;
 391
 392         if (last_name_entry_key_press_event) {
 393                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 394                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 395         } else {
 396                 /* start with a 1 second timeout */
 397                 name_entry_timeout = 1000;
 398         }
 399
 400         last_name_entry_key_press_event = ev->time;
 401
 402         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 403
 404         name_entry_key_timeout.disconnect();
 405         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 406 #endif
 407
 408         return false;
 409 }
 410
 411 bool
 412 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 413 {
 414         name_entry.select_region (0, -1);
 415         name_entry.set_name ("EditorActiveTrackNameDisplay");
 416         return false;
 417 }
 418
 419 bool
 420 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 421 {
 422         /* clean up */
 423
 424         last_name_entry_key_press_event = 0;
 425         name_entry_key_timeout.disconnect ();
 426         name_entry.set_name ("EditorTrackNameDisplay");
 427
 428         /* do the real stuff */
 429
 430         name_entry_changed ();
 431
 432         return false;
 433 }
 434
 435 bool
 436 TimeAxisView::name_entry_key_timed_out ()
 437 {
 438         name_entry_activated();
 439         return false;
 440 }
 441
 442 void
 443 TimeAxisView::name_entry_activated ()
 444 {
 445         controls_ebox.grab_focus();
 446 }
 447
 448 void
 449 TimeAxisView::name_entry_changed ()
 450 {
 451 }
 452
 453 bool
 454 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 455 {
 456         if (ev->button == 3) {
 457                 return true;
 458         }
 459         return false;
 460 }
 461
 462 bool
 463 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 464 {
 465         if (ev->button == 3) {
 466                 popup_display_menu (ev->time);
 467                 return true;
 468         }
 469         return false;
 470 }
 471
 472 void
 473 TimeAxisView::popup_display_menu (guint32 when)
 474 {
 475         if (display_menu == 0) {
 476                 build_display_menu ();
 477         }
 478         display_menu->popup (1, when);
 479 }
 480
 481 gint
 482 TimeAxisView::size_click (GdkEventButton *ev)
 483 {
 484         popup_size_menu (ev->time);
 485         return TRUE;
 486 }
 487
 488 void
 489 TimeAxisView::popup_size_menu (guint32 when)
 490 {
 491         if (size_menu == 0) {
 492                 build_size_menu ();
 493         }
 494         size_menu->popup (1, when);
 495 }
 496
 497 void
 498 TimeAxisView::set_selected (bool yn)
 499 {
 500         AxisView::set_selected (yn);
 501
 502         if (_selected) {
 503                 controls_ebox.set_name (controls_base_selected_name);
 504                 controls_frame.set_name (controls_base_selected_name);
 505
 506                 /* propagate any existing selection, if the mode is right */
 507
 508                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 509                         show_selection (editor.get_selection().time);
 510                 }
 511
 512         } else {
 513                 controls_ebox.set_name (controls_base_unselected_name);
 514                 controls_frame.set_name (controls_base_unselected_name);
 515
 516                 hide_selection ();
 517
 518                 /* children will be set for the yn=true case. but when deselecting
 519                    the editor only has a list of top-level trackviews, so we
 520                    have to do this here.
 521                 */
 522
 523                 for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 524                         (*i)->set_selected (false);
 525                 }
 526
 527
 528         }
 529 }
 530
 531 void
 532 TimeAxisView::build_size_menu ()
 533 {
 534         using namespace Menu_Helpers;
 535
 536         size_menu = new Menu;
 537         size_menu->set_name ("ArdourContextMenu");
 538         MenuList& items = size_menu->items();
 539
 540         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 541         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 542         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 543         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 544         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height), Smaller)));
 545         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 546 }
 547
 548 void
 549 TimeAxisView::build_display_menu ()
 550 {
 551         using namespace Menu_Helpers;
 552
 553         display_menu = new Menu;
 554         display_menu->set_name ("ArdourContextMenu");
 555
 556         // Just let implementing classes define what goes into the manu
 557 }
 558
 559 void
 560 TimeAxisView::set_samples_per_unit (double spu)
 561 {
 562         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 563                 (*i)->set_samples_per_unit (spu);
 564         }
 565 }
 566
 567 void
 568 TimeAxisView::show_timestretch (jack_nframes_t start, jack_nframes_t end)
 569 {
 570         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 571                 (*i)->show_timestretch (start, end);
 572         }
 573 }
 574
 575 void
 576 TimeAxisView::hide_timestretch ()
 577 {
 578         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 579                 (*i)->hide_timestretch ();
 580         }
 581 }
 582
 583 void
 584 TimeAxisView::show_selection (TimeSelection& ts)
 585 {
 586         double x1;
 587         double x2;
 588         double y2;
 589         SelectionRect *rect;
 590
 591         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 592                 (*i)->show_selection (ts);
 593         }
 594
 595         if (canvas_item_visible (selection_group)) {
 596                 while (!used_selection_rects.empty()) {
 597                         free_selection_rects.push_front (used_selection_rects.front());
 598                         used_selection_rects.pop_front();
 599                         free_selection_rects.front()->rect->hide();
 600                         free_selection_rects.front()->start_trim->hide();
 601                         free_selection_rects.front()->end_trim->hide();
 602                 }
 603                 selection_group->hide();
 604         }
 605
 606         selection_group->show();
 607         selection_group->raise_to_top();
 608
 609         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 610                 jack_nframes_t start, end, cnt;
 611
 612                 start = (*i).start;
 613                 end = (*i).end;
 614                 cnt = end - start + 1;
 615
 616                 rect = get_selection_rect ((*i).id);
 617
 618                 x1 = start / editor.get_current_zoom();
 619                 x2 = (start + cnt - 1) / editor.get_current_zoom();
 620                 y2 = height;
 621
 622                 rect->rect->property_x1() = x1;
 623                 rect->rect->property_y1() = 1.0;
 624                 rect->rect->property_x2() = x2;
 625                 rect->rect->property_y2() = y2;
 626
 627                 // trim boxes are at the top for selections
 628
 629                 if (x2 > x1) {
 630                         rect->start_trim->property_x1() = x1;
 631                         rect->start_trim->property_y1() = 1.0;
 632                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 633                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 634
 635                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 636                         rect->end_trim->property_y1() = 1.0;
 637                         rect->end_trim->property_x2() = x2;
 638                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 639
 640                         rect->start_trim->show();
 641                         rect->end_trim->show();
 642                 } else {
 643                         rect->start_trim->hide();
 644                         rect->end_trim->hide();
 645                 }
 646
 647                 rect->rect->show ();
 648                 used_selection_rects.push_back (rect);
 649         }
 650 }
 651
 652 void
 653 TimeAxisView::reshow_selection (TimeSelection& ts)
 654 {
 655         show_selection (ts);
 656
 657         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 658                 (*i)->show_selection (ts);
 659         }
 660 }
 661
 662 void
 663 TimeAxisView::hide_selection ()
 664 {
 665         if (canvas_item_visible (selection_group)) {
 666                 while (!used_selection_rects.empty()) {
 667                         free_selection_rects.push_front (used_selection_rects.front());
 668                         used_selection_rects.pop_front();
 669                         free_selection_rects.front()->rect->hide();
 670                         free_selection_rects.front()->start_trim->hide();
 671                         free_selection_rects.front()->end_trim->hide();
 672                 }
 673                 selection_group->hide();
 674         }
 675
 676         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 677                 (*i)->hide_selection ();
 678         }
 679 }
 680
 681 void
 682 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 683 {
 684         /* find the selection rect this is for. we have the item corresponding to one
 685            of the trim handles.
 686          */
 687
 688         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 689                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 690
 691                         /* make one trim handle be "above" the other so that if they overlap,
 692                            the top one is the one last used.
 693                         */
 694
 695                         (*i)->rect->raise_to_top ();
 696                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 697                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 698
 699                         break;
 700                 }
 701         }
 702 }
 703
 704 SelectionRect *
 705 TimeAxisView::get_selection_rect (uint32_t id)
 706 {
 707         SelectionRect *rect;
 708
 709         /* check to see if we already have a visible rect for this particular selection ID */
 710
 711         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 712                 if ((*i)->id == id) {
 713                         return (*i);
 714                 }
 715         }
 716
 717         /* ditto for the free rect list */
 718
 719         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 720                 if ((*i)->id == id) {
 721                         free_selection_rects.erase (i);
 722                         return (*i);
 723                 }
 724         }
 725
 726         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 727
 728         if (free_selection_rects.empty()) {
 729
 730                 rect = new SelectionRect;
 731
 732                 rect->rect = new SimpleRect (*selection_group);
 733                 rect->rect->property_x1() = 0.0;
 734                 rect->rect->property_y1() = 0.0;
 735                 rect->rect->property_x2() = 0.0;
 736                 rect->rect->property_y2() = 0.0;
 737                 rect->rect->property_fill_color_rgba() = color_map[cSelectionRectFill];
 738                 rect->rect->property_outline_color_rgba() = color_map[cSelectionRectOutline];
 739
 740                 rect->start_trim = new SimpleRect (*selection_group);
 741                 rect->start_trim->property_x1() = 0.0;
 742                 rect->start_trim->property_x2() = 0.0;
 743                 rect->start_trim->property_fill_color_rgba() = color_map[cSelectionStartFill];
 744                 rect->start_trim->property_outline_color_rgba() = color_map[cSelectionStartOutline];
 745
 746                 rect->end_trim = new SimpleRect (*selection_group);
 747                 rect->end_trim->property_x1() = 0.0;
 748                 rect->end_trim->property_x2() = 0.0;
 749                 rect->end_trim->property_fill_color_rgba() = color_map[cSelectionEndFill];
 750                 rect->end_trim->property_outline_color_rgba() = color_map[cSelectionEndOutline];
 751
 752                 free_selection_rects.push_front (rect);
 753
 754                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 755                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 756                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 757         }
 758
 759         rect = free_selection_rects.front();
 760         rect->id = id;
 761         free_selection_rects.pop_front();
 762         return rect;
 763 }
 764
 765 bool
 766 TimeAxisView::is_child (TimeAxisView* tav)
 767 {
 768         return find (children.begin(), children.end(), tav) != children.end();
 769 }
 770
 771 void
 772 TimeAxisView::add_child (TimeAxisView* child)
 773 {
 774         children.push_back (child);
 775 }
 776
 777 void
 778 TimeAxisView::remove_child (TimeAxisView* child)
 779 {
 780         vector<TimeAxisView*>::iterator i;
 781
 782         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 783                 children.erase (i);
 784         }
 785 }
 786
 787 void
 788 TimeAxisView::get_selectables (jack_nframes_t start, jack_nframes_t end, double top, double bot, list<Selectable*>& result)
 789 {
 790         return;
 791 }
 792
 793 void
 794 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 795 {
 796         return;
 797 }
 798
 799 bool
 800 TimeAxisView::touched (double top, double bot)
 801 {
 802         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 803            y_position is the "origin" or "top" of the track.
 804          */
 805
 806         double mybot = y_position + height; // XXX need to include Editor::track_spacing;
 807
 808         return ((y_position <= bot && y_position >= top) ||
 809                 ((mybot <= bot) && (top < mybot)) ||
 810                 (mybot >= bot && y_position < top));
 811 }
 812
 813 void
 814 TimeAxisView::set_parent (TimeAxisView& p)
 815 {
 816         parent = &p;
 817 }
 818
 819 bool
 820 TimeAxisView::has_state () const
 821 {
 822         return _has_state;
 823 }
 824
 825 TimeAxisView*
 826 TimeAxisView::get_parent_with_state ()
 827 {
 828         if (parent == 0) {
 829                 return 0;
 830         }
 831
 832         if (parent->has_state()) {
 833                 return parent;
 834         }
 835
 836         return parent->get_parent_with_state ();
 837 }
 838
 839 void
 840 TimeAxisView::set_state (const XMLNode& node)
 841 {
 842         const XMLProperty *prop;
 843
 844         if ((prop = node.property ("track_height")) != 0) {
 845
 846                 if (prop->value() == "largest") {
 847                         set_height (Largest);
 848                 } else if (prop->value() == "large") {
 849                         set_height (Large);
 850                 } else if (prop->value() == "larger") {
 851                         set_height (Larger);
 852                 } else if (prop->value() == "normal") {
 853                         set_height (Normal);
 854                 } else if (prop->value() == "smaller") {
 855                         set_height (Smaller);
 856                 } else if (prop->value() == "small") {
 857                         set_height (Small);
 858                 } else {
 859                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 860                         set_height (Normal);
 861                 }
 862
 863         } else {
 864                 set_height (Normal);
 865         }
 866 }
 867
 868 void
 869 TimeAxisView::reset_height()
 870 {
 871         set_height ((TrackHeight) height);
 872
 873         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 874                 (*i)->set_height ((TrackHeight)(*i)->height);
 875         }
 876 }
 877