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 sigc;
  56 using namespace ARDOUR;
  57 using namespace Editing;
  58 using namespace ArdourCanvas;
  59
  60 const double trim_handle_size = 6.0; /* pixels */
  61
  62 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  63         : AxisView (sess),
  64           editor (ed),
  65           controls_table (2, 9)
  66 {
  67         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  68
  69         selection_group = new Group (*canvas_display);
  70         selection_group->hide();
  71
  72         control_parent = 0;
  73         display_menu = 0;
  74         size_menu = 0;
  75         _marked_for_display = false;
  76         _hidden = false;
  77         height = 0;
  78         effective_height = 0;
  79         parent = rent;
  80         _has_state = false;
  81
  82         /*
  83           Create the standard LHS Controls
  84           We create the top-level container and name add the name label here,
  85           subclasses can add to the layout as required
  86         */
  87
  88         name_entry.set_name ("EditorTrackNameDisplay");
  89         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
  90         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
  91
  92         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
  93
  94         name_label.set_name ("TrackLabel");
  95         name_label.set_alignment (0.0, 0.5);
  96
  97         // name_hbox.set_border_width (2);
  98         // name_hbox.set_spacing (5);
  99
 100         /* typically, either name_label OR name_entry are visible,
 101            but not both. its up to derived classes to show/hide them as they
 102            wish.
 103         */
 104
 105         name_hbox.pack_start (name_label, true, true);
 106         name_hbox.pack_start (name_entry, true, true);
 107         name_hbox.show ();
 108
 109         controls_table.set_border_width (2);
 110         controls_table.set_row_spacings (0);
 111         controls_table.set_col_spacings (0);
 112         controls_table.set_homogeneous (true);
 113         controls_table.show ();
 114
 115         controls_table.attach (name_hbox, 0, 5, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 116
 117         controls_table.show ();
 118
 119         controls_vbox.pack_start (controls_table, false, false);
 120         controls_vbox.show ();
 121
 122         controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 123         controls_ebox.add (controls_vbox);
 124         controls_ebox.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 125         controls_ebox.set_flags (Gtk::CAN_FOCUS);
 126
 127         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 128
 129         controls_lhs_pad.set_name ("TimeAxisViewControlsPadding");
 130         controls_hbox.pack_start (controls_lhs_pad,false,false);
 131         controls_hbox.pack_start (controls_ebox,true,true);
 132         controls_hbox.show ();
 133
 134         controls_frame.add (controls_hbox);
 135         controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 136         controls_frame.set_shadow_type (Gtk::SHADOW_OUT);
 137 }
 138
 139 TimeAxisView::~TimeAxisView()
 140 {
 141         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 142                 delete *i;
 143         }
 144
 145         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 146                 delete (*i)->rect;
 147                 delete (*i)->start_trim;
 148                 delete (*i)->end_trim;
 149
 150         }
 151
 152         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 153                 delete (*i)->rect;
 154                 delete (*i)->start_trim;
 155                 delete (*i)->end_trim;
 156         }
 157
 158         if (selection_group) {
 159                 delete selection_group;
 160                 selection_group = 0;
 161         }
 162
 163         if (canvas_display) {
 164                 delete canvas_display;
 165                 canvas_display = 0;
 166         }
 167
 168         if (display_menu) {
 169                 delete display_menu;
 170                 display_menu = 0;
 171         }
 172
 173         if (size_menu) {
 174                 delete size_menu;
 175                 size_menu = 0;
 176         }
 177 }
 178
 179 guint32
 180 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 181 {
 182         gdouble ix1, ix2, iy1, iy2;
 183         effective_height = 0;
 184
 185         if (control_parent) {
 186                 control_parent->reorder_child (controls_frame, nth);
 187         } else {
 188                 control_parent = parent;
 189                 parent->pack_start (controls_frame, false, false);
 190                 parent->reorder_child (controls_frame, nth);
 191         }
 192
 193         controls_frame.show ();
 194         controls_ebox.show ();
 195
 196         /* the coordinates used here are in the system of the
 197            item's parent ...
 198         */
 199
 200         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 201         Group* pg = canvas_display->property_parent();
 202         pg->i2w (ix1, iy1);
 203
 204         if (iy1 < 0) {
 205                 iy1 = 0;
 206         }
 207
 208         canvas_display->move (0.0, y - iy1);
 209         canvas_display->show();/* XXX not necessary */
 210         y_position = y;
 211         order = nth;
 212         _hidden = false;
 213
 214         effective_height = height;
 215
 216         /* now show children */
 217
 218         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 219
 220                 if ((*i)->marked_for_display()) {
 221                         (*i)->canvas_display->show();
 222                 }
 223
 224                 if (canvas_item_visible ((*i)->canvas_display)) {
 225                         ++nth;
 226                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 227                 }
 228         }
 229
 230         return effective_height;
 231 }
 232
 233 gint
 234 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 235 {
 236         switch (ev->button) {
 237         case 1:
 238                 selection_click (ev);
 239                 break;
 240
 241         case 3:
 242                 popup_display_menu (ev->time);
 243                 break;
 244
 245         case 4:
 246                 if (Keyboard::no_modifier_keys_pressed (ev)) {
 247                         editor.scroll_tracks_up_line ();
 248                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 249                         step_height (true);
 250                 }
 251                 break;
 252
 253         case 5:
 254                 if (Keyboard::no_modifier_keys_pressed (ev)) {
 255                         editor.scroll_tracks_down_line ();
 256                 } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 257                         step_height (false);
 258                 }
 259                 break;
 260
 261
 262         }
 263
 264         return TRUE;
 265 }
 266
 267 void
 268 TimeAxisView::selection_click (GdkEventButton* ev)
 269 {
 270         if (Keyboard::modifier_state_contains (ev->state, Keyboard::Shift)) {
 271
 272                 if (editor.get_selection().selected (this)) {
 273                         editor.get_selection().remove (this);
 274                 } else {
 275                         editor.get_selection().add (this);
 276                 }
 277
 278         } else {
 279
 280                 editor.get_selection().set (this);
 281         }
 282 }
 283
 284 void
 285 TimeAxisView::hide ()
 286 {
 287         if (_hidden) {
 288                 return;
 289         }
 290
 291         canvas_display->hide();
 292         controls_frame.hide ();
 293
 294         if (control_parent) {
 295                 control_parent->remove (controls_frame);
 296                 control_parent = 0;
 297         }
 298
 299         y_position = -1;
 300         _hidden = true;
 301
 302         /* now hide children */
 303
 304         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 305                 (*i)->hide ();
 306         }
 307
 308         Hiding ();
 309 }
 310
 311 void
 312 TimeAxisView::step_height (bool bigger)
 313 {
 314         switch (height) {
 315         case Largest:
 316                 if (!bigger) set_height (Large);
 317                 break;
 318         case Large:
 319                 if (bigger) set_height (Largest);
 320                 else set_height (Larger);
 321                 break;
 322         case Larger:
 323                 if (bigger) set_height (Large);
 324                 else set_height (Normal);
 325                 break;
 326         case Normal:
 327                 if (bigger) set_height (Larger);
 328                 else set_height (Smaller);
 329                 break;
 330         case Smaller:
 331                 if (bigger) set_height (Normal);
 332                 else set_height (Small);
 333                 break;
 334         case Small:
 335                 if (bigger) set_height (Smaller);
 336                 break;
 337         }
 338 }
 339
 340
 341 void
 342 TimeAxisView::set_height (TrackHeight h)
 343 {
 344         height = (guint32) h;
 345         controls_frame.set_size_request (-1, height);
 346
 347         if (canvas_item_visible (selection_group)) {
 348                 /* resize the selection rect */
 349                 show_selection (editor.get_selection().time);
 350         }
 351
 352 //      for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 353 //              (*i)->set_height (h);
 354 //      }
 355
 356 }
 357
 358 bool
 359 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 360 {
 361         if (ev->button == 3) {
 362                 return true;
 363         }
 364         return false;
 365 }
 366
 367 bool
 368 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 369 {
 370         if (ev->button == 3) {
 371                 popup_display_menu (ev->time);
 372                 return true;
 373         }
 374         return false;
 375 }
 376
 377 void
 378 TimeAxisView::popup_display_menu (guint32 when)
 379 {
 380         if (display_menu == 0) {
 381                 build_display_menu ();
 382         }
 383         display_menu->popup (1, when);
 384 }
 385
 386 gint
 387 TimeAxisView::size_click (GdkEventButton *ev)
 388 {
 389         popup_size_menu (ev->time);
 390         return TRUE;
 391 }
 392
 393 void
 394 TimeAxisView::popup_size_menu (guint32 when)
 395 {
 396         if (size_menu == 0) {
 397                 build_size_menu ();
 398         }
 399         size_menu->popup (1, when);
 400 }
 401
 402 void
 403 TimeAxisView::set_selected (bool yn)
 404 {
 405         AxisView::set_selected (yn);
 406
 407         if (_selected) {
 408                 controls_ebox.set_name (controls_base_selected_name);
 409                 controls_frame.set_name (controls_base_selected_name);
 410
 411                 /* propagate any existing selection, if the mode is right */
 412
 413                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 414                         show_selection (editor.get_selection().time);
 415                 }
 416
 417         } else {
 418                 controls_ebox.set_name (controls_base_unselected_name);
 419                 controls_frame.set_name (controls_base_unselected_name);
 420
 421                 hide_selection ();
 422
 423                 /* children will be set for the yn=true case. but when deselecting
 424                    the editor only has a list of top-level trackviews, so we
 425                    have to do this here.
 426                 */
 427
 428                 for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 429                         (*i)->set_selected (false);
 430                 }
 431
 432
 433         }
 434 }
 435
 436 void
 437 TimeAxisView::build_size_menu ()
 438 {
 439         using namespace Menu_Helpers;
 440
 441         size_menu = new Menu;
 442         size_menu->set_name ("ArdourContextMenu");
 443         MenuList& items = size_menu->items();
 444
 445         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 446         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 447         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 448         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 449         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height), Smaller)));
 450         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 451 }
 452
 453 void
 454 TimeAxisView::build_display_menu ()
 455 {
 456         using namespace Menu_Helpers;
 457
 458         display_menu = new Menu;
 459         display_menu->set_name ("ArdourContextMenu");
 460
 461         // Just let implementing classes define what goes into the manu
 462 }
 463
 464 void
 465 TimeAxisView::set_samples_per_unit (double spu)
 466 {
 467         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 468                 (*i)->set_samples_per_unit (spu);
 469         }
 470 }
 471
 472 void
 473 TimeAxisView::show_timestretch (jack_nframes_t start, jack_nframes_t end)
 474 {
 475         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 476                 (*i)->show_timestretch (start, end);
 477         }
 478 }
 479
 480 void
 481 TimeAxisView::hide_timestretch ()
 482 {
 483         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 484                 (*i)->hide_timestretch ();
 485         }
 486 }
 487
 488 void
 489 TimeAxisView::show_selection (TimeSelection& ts)
 490 {
 491         double x1;
 492         double x2;
 493         double y2;
 494         SelectionRect *rect;
 495
 496         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 497                 (*i)->show_selection (ts);
 498         }
 499
 500         if (canvas_item_visible (selection_group)) {
 501                 while (!used_selection_rects.empty()) {
 502                         free_selection_rects.push_front (used_selection_rects.front());
 503                         used_selection_rects.pop_front();
 504                         free_selection_rects.front()->rect->hide();
 505                         free_selection_rects.front()->start_trim->hide();
 506                         free_selection_rects.front()->end_trim->hide();
 507                 }
 508                 selection_group->hide();
 509         }
 510
 511         selection_group->show();
 512         selection_group->raise_to_top();
 513
 514         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 515                 jack_nframes_t start, end, cnt;
 516
 517                 start = (*i).start;
 518                 end = (*i).end;
 519                 cnt = end - start + 1;
 520
 521                 rect = get_selection_rect ((*i).id);
 522
 523                 x1 = start / editor.get_current_zoom();
 524                 x2 = (start + cnt - 1) / editor.get_current_zoom();
 525                 y2 = height;
 526
 527                 rect->rect->property_x1() = x1;
 528                 rect->rect->property_y1() = 1.0;
 529                 rect->rect->property_x2() = x2;
 530                 rect->rect->property_y2() = y2;
 531
 532                 // trim boxes are at the top for selections
 533
 534                 if (x2 > x1) {
 535                         rect->start_trim->property_x1() = x1;
 536                         rect->start_trim->property_y1() = 1.0;
 537                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 538                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 539
 540                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 541                         rect->end_trim->property_y1() = 1.0;
 542                         rect->end_trim->property_x2() = x2;
 543                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 544
 545                         rect->start_trim->show();
 546                         rect->end_trim->show();
 547                 } else {
 548                         rect->start_trim->hide();
 549                         rect->end_trim->hide();
 550                 }
 551
 552                 rect->rect->show ();
 553                 used_selection_rects.push_back (rect);
 554         }
 555 }
 556
 557 void
 558 TimeAxisView::reshow_selection (TimeSelection& ts)
 559 {
 560         show_selection (ts);
 561
 562         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 563                 (*i)->show_selection (ts);
 564         }
 565 }
 566
 567 void
 568 TimeAxisView::hide_selection ()
 569 {
 570         if (canvas_item_visible (selection_group)) {
 571                 while (!used_selection_rects.empty()) {
 572                         free_selection_rects.push_front (used_selection_rects.front());
 573                         used_selection_rects.pop_front();
 574                         free_selection_rects.front()->rect->hide();
 575                         free_selection_rects.front()->start_trim->hide();
 576                         free_selection_rects.front()->end_trim->hide();
 577                 }
 578                 selection_group->hide();
 579         }
 580
 581         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 582                 (*i)->hide_selection ();
 583         }
 584 }
 585
 586 void
 587 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 588 {
 589         /* find the selection rect this is for. we have the item corresponding to one
 590            of the trim handles.
 591          */
 592
 593         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 594                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 595
 596                         /* make one trim handle be "above" the other so that if they overlap,
 597                            the top one is the one last used.
 598                         */
 599
 600                         (*i)->rect->raise_to_top ();
 601                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 602                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 603
 604                         break;
 605                 }
 606         }
 607 }
 608
 609 SelectionRect *
 610 TimeAxisView::get_selection_rect (uint32_t id)
 611 {
 612         SelectionRect *rect;
 613
 614         /* check to see if we already have a visible rect for this particular selection ID */
 615
 616         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 617                 if ((*i)->id == id) {
 618                         return (*i);
 619                 }
 620         }
 621
 622         /* ditto for the free rect list */
 623
 624         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 625                 if ((*i)->id == id) {
 626                         free_selection_rects.erase (i);
 627                         return (*i);
 628                 }
 629         }
 630
 631         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 632
 633         if (free_selection_rects.empty()) {
 634
 635                 rect = new SelectionRect;
 636
 637                 rect->rect = new SimpleRect (*selection_group);
 638                 rect->rect->property_x1() = 0.0;
 639                 rect->rect->property_y1() = 0.0;
 640                 rect->rect->property_x2() = 0.0;
 641                 rect->rect->property_y2() = 0.0;
 642                 rect->rect->property_fill_color_rgba() = color_map[cSelectionRectFill];
 643                 rect->rect->property_outline_color_rgba() = color_map[cSelectionRectOutline];
 644
 645                 rect->start_trim = new SimpleRect (*selection_group);
 646                 rect->start_trim->property_x1() = 0.0;
 647                 rect->start_trim->property_x2() = 0.0;
 648                 rect->start_trim->property_fill_color_rgba() = color_map[cSelectionStartFill];
 649                 rect->start_trim->property_outline_color_rgba() = color_map[cSelectionStartOutline];
 650
 651                 rect->end_trim = new SimpleRect (*selection_group);
 652                 rect->end_trim->property_x1() = 0.0;
 653                 rect->end_trim->property_x2() = 0.0;
 654                 rect->end_trim->property_fill_color_rgba() = color_map[cSelectionEndFill];
 655                 rect->end_trim->property_outline_color_rgba() = color_map[cSelectionEndOutline];
 656
 657                 free_selection_rects.push_front (rect);
 658
 659                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 660                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 661                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 662         }
 663
 664         rect = free_selection_rects.front();
 665         rect->id = id;
 666         free_selection_rects.pop_front();
 667         return rect;
 668 }
 669
 670 bool
 671 TimeAxisView::is_child (TimeAxisView* tav)
 672 {
 673         return find (children.begin(), children.end(), tav) != children.end();
 674 }
 675
 676 void
 677 TimeAxisView::add_child (TimeAxisView* child)
 678 {
 679         children.push_back (child);
 680 }
 681
 682 void
 683 TimeAxisView::remove_child (TimeAxisView* child)
 684 {
 685         vector<TimeAxisView*>::iterator i;
 686
 687         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 688                 children.erase (i);
 689         }
 690 }
 691
 692 void
 693 TimeAxisView::get_selectables (jack_nframes_t start, jack_nframes_t end, double top, double bot, list<Selectable*>& result)
 694 {
 695         return;
 696 }
 697
 698 void
 699 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 700 {
 701         return;
 702 }
 703
 704 bool
 705 TimeAxisView::touched (double top, double bot)
 706 {
 707         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 708            y_position is the "origin" or "top" of the track.
 709          */
 710
 711         double mybot = y_position + height; // XXX need to include Editor::track_spacing;
 712
 713         return ((y_position <= bot && y_position >= top) ||
 714                 ((mybot <= bot) && (top < mybot)) ||
 715                 (mybot >= bot && y_position < top));
 716 }
 717
 718 void
 719 TimeAxisView::set_parent (TimeAxisView& p)
 720 {
 721         parent = &p;
 722 }
 723
 724 bool
 725 TimeAxisView::has_state () const
 726 {
 727         return _has_state;
 728 }
 729
 730 TimeAxisView*
 731 TimeAxisView::get_parent_with_state ()
 732 {
 733         if (parent == 0) {
 734                 return 0;
 735         }
 736
 737         if (parent->has_state()) {
 738                 return parent;
 739         }
 740
 741         return parent->get_parent_with_state ();
 742 }
 743
 744 void
 745 TimeAxisView::set_state (const XMLNode& node)
 746 {
 747         const XMLProperty *prop;
 748
 749         if ((prop = node.property ("track_height")) != 0) {
 750
 751                 if (prop->value() == "largest") {
 752                         set_height (Largest);
 753                 } else if (prop->value() == "large") {
 754                         set_height (Large);
 755                 } else if (prop->value() == "larger") {
 756                         set_height (Larger);
 757                 } else if (prop->value() == "normal") {
 758                         set_height (Normal);
 759                 } else if (prop->value() == "smaller") {
 760                         set_height (Smaller);
 761                 } else if (prop->value() == "small") {
 762                         set_height (Small);
 763                 } else {
 764                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 765                         set_height (Normal);
 766                 }
 767
 768         } else {
 769                 set_height (Normal);
 770         }
 771 }
 772
 773 void
 774 TimeAxisView::reset_height()
 775 {
 776         set_height ((TrackHeight) height);
 777
 778         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 779                 (*i)->set_height ((TrackHeight)(*i)->height);
 780         }
 781 }
 782