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 uint32_t TimeAxisView::hLargest = 0;
  64 uint32_t TimeAxisView::hLarge = 0;
  65 uint32_t TimeAxisView::hLarger = 0;
  66 uint32_t TimeAxisView::hNormal = 0;
  67 uint32_t TimeAxisView::hSmaller = 0;
  68 uint32_t TimeAxisView::hSmall = 0;
  69 bool TimeAxisView::need_size_info = true;
  70
  71 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  72         : AxisView (sess),
  73           editor (ed),
  74           controls_table (2, 8)
  75 {
  76         if (need_size_info) {
  77                 compute_controls_size_info ();
  78                 need_size_info = false;
  79         }
  80
  81         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  82
  83         selection_group = new Group (*canvas_display);
  84         selection_group->hide();
  85
  86         control_parent = 0;
  87         display_menu = 0;
  88         size_menu = 0;
  89         _marked_for_display = false;
  90         _hidden = false;
  91         height = 0;
  92         effective_height = 0;
  93         parent = rent;
  94         _has_state = false;
  95         last_name_entry_key_press_event = 0;
  96         name_packing = NamePackingBits (0);
  97
  98         /*
  99           Create the standard LHS Controls
 100           We create the top-level container and name add the name label here,
 101           subclasses can add to the layout as required
 102         */
 103
 104         name_entry.set_name ("EditorTrackNameDisplay");
 105         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 106         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 107         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 108         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 109         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 110         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 111         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 112
 113         name_label.set_name ("TrackLabel");
 114         name_label.set_alignment (0.0, 0.5);
 115
 116         /* typically, either name_label OR name_entry are visible,
 117            but not both. its up to derived classes to show/hide them as they
 118            wish.
 119         */
 120
 121         name_hbox.show ();
 122
 123         controls_table.set_border_width (2);
 124         controls_table.set_row_spacings (0);
 125         controls_table.set_col_spacings (0);
 126         controls_table.set_homogeneous (true);
 127
 128         controls_table.attach (name_hbox, 0, 4, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 129         controls_table.show_all ();
 130
 131         controls_vbox.pack_start (controls_table, false, false);
 132         controls_vbox.show ();
 133
 134         controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 135         controls_ebox.add (controls_vbox);
 136         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 137         controls_ebox.set_flags (CAN_FOCUS);
 138
 139         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 140         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 141
 142         controls_lhs_pad.set_name ("TimeAxisViewControlsPadding");
 143         controls_hbox.pack_start (controls_lhs_pad,false,false);
 144         controls_hbox.pack_start (controls_ebox,true,true);
 145         controls_hbox.show ();
 146
 147         controls_frame.add (controls_hbox);
 148         controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 149         controls_frame.set_shadow_type (Gtk::SHADOW_OUT);
 150 }
 151
 152 TimeAxisView::~TimeAxisView()
 153 {
 154         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 155                 delete *i;
 156         }
 157
 158         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 159                 delete (*i)->rect;
 160                 delete (*i)->start_trim;
 161                 delete (*i)->end_trim;
 162
 163         }
 164
 165         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 166                 delete (*i)->rect;
 167                 delete (*i)->start_trim;
 168                 delete (*i)->end_trim;
 169         }
 170
 171         if (selection_group) {
 172                 delete selection_group;
 173                 selection_group = 0;
 174         }
 175
 176         if (canvas_display) {
 177                 delete canvas_display;
 178                 canvas_display = 0;
 179         }
 180
 181         if (display_menu) {
 182                 delete display_menu;
 183                 display_menu = 0;
 184         }
 185 }
 186
 187 guint32
 188 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 189 {
 190         gdouble ix1, ix2, iy1, iy2;
 191         effective_height = 0;
 192
 193         if (control_parent) {
 194                 control_parent->reorder_child (controls_frame, nth);
 195         } else {
 196                 control_parent = parent;
 197                 parent->pack_start (controls_frame, false, false);
 198                 parent->reorder_child (controls_frame, nth);
 199         }
 200         controls_frame.show ();
 201         controls_ebox.show ();
 202
 203         /* the coordinates used here are in the system of the
 204            item's parent ...
 205         */
 206
 207         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 208         Group* pg = canvas_display->property_parent();
 209         pg->i2w (ix1, iy1);
 210
 211         if (iy1 < 0) {
 212                 iy1 = 0;
 213         }
 214
 215         canvas_display->move (0.0, y - iy1);
 216         canvas_display->show();/* XXX not necessary */
 217         y_position = y;
 218         order = nth;
 219         _hidden = false;
 220
 221         effective_height = height;
 222
 223         /* now show children */
 224
 225         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 226
 227                 if ((*i)->marked_for_display()) {
 228                         (*i)->canvas_display->show();
 229                 }
 230
 231                 if (canvas_item_visible ((*i)->canvas_display)) {
 232                         ++nth;
 233                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 234                 }
 235         }
 236
 237         return effective_height;
 238 }
 239
 240 bool
 241 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 242 {
 243         switch (ev->direction) {
 244         case GDK_SCROLL_UP:
 245                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 246                         step_height (true);
 247                         return true;
 248                 }
 249                 break;
 250
 251         case GDK_SCROLL_DOWN:
 252                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Control)) {
 253                         step_height (false);
 254                         return true;
 255                 }
 256                 break;
 257
 258         default:
 259                 /* no handling for left/right, yet */
 260                 break;
 261         }
 262
 263         return false;
 264 }
 265
 266 bool
 267 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 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 void
 356 TimeAxisView::set_height (TrackHeight h)
 357 {
 358         height_style = h;
 359         set_height_pixels (height_to_pixels (h));
 360 }
 361
 362 void
 363 TimeAxisView::set_height_pixels (uint32_t h)
 364 {
 365         height = h;
 366         controls_frame.set_size_request (-1, height);
 367
 368         if (canvas_item_visible (selection_group)) {
 369                 /* resize the selection rect */
 370                 show_selection (editor.get_selection().time);
 371         }
 372 }
 373
 374 bool
 375 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 376 {
 377         switch (ev->keyval) {
 378         case GDK_Tab:
 379         case GDK_Up:
 380         case GDK_Down:
 381                 name_entry_changed ();
 382                 return true;
 383
 384         default:
 385                 break;
 386         }
 387
 388 #ifdef TIMEOUT_NAME_EDIT
 389         /* adapt the timeout to reflect the user's typing speed */
 390
 391         guint32 name_entry_timeout;
 392
 393         if (last_name_entry_key_press_event) {
 394                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 395                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 396         } else {
 397                 /* start with a 1 second timeout */
 398                 name_entry_timeout = 1000;
 399         }
 400
 401         last_name_entry_key_press_event = ev->time;
 402
 403         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 404
 405         name_entry_key_timeout.disconnect();
 406         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 407 #endif
 408
 409         return false;
 410 }
 411
 412 bool
 413 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 414 {
 415         name_entry.select_region (0, -1);
 416         name_entry.set_name ("EditorActiveTrackNameDisplay");
 417         return false;
 418 }
 419
 420 bool
 421 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 422 {
 423         /* clean up */
 424
 425         last_name_entry_key_press_event = 0;
 426         name_entry_key_timeout.disconnect ();
 427         name_entry.set_name ("EditorTrackNameDisplay");
 428
 429         /* do the real stuff */
 430
 431         name_entry_changed ();
 432
 433         return false;
 434 }
 435
 436 bool
 437 TimeAxisView::name_entry_key_timed_out ()
 438 {
 439         name_entry_activated();
 440         return false;
 441 }
 442
 443 void
 444 TimeAxisView::name_entry_activated ()
 445 {
 446         controls_ebox.grab_focus();
 447 }
 448
 449 void
 450 TimeAxisView::name_entry_changed ()
 451 {
 452 }
 453
 454 bool
 455 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 456 {
 457         if (ev->button == 3) {
 458                 return true;
 459         }
 460         return false;
 461 }
 462
 463 bool
 464 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 465 {
 466         if (ev->button == 3) {
 467                 popup_display_menu (ev->time);
 468                 return true;
 469         }
 470         return false;
 471 }
 472
 473 void
 474 TimeAxisView::popup_display_menu (guint32 when)
 475 {
 476         if (display_menu == 0) {
 477                 build_display_menu ();
 478         }
 479         display_menu->popup (1, when);
 480 }
 481
 482 gint
 483 TimeAxisView::size_click (GdkEventButton *ev)
 484 {
 485         popup_size_menu (ev->time);
 486         return TRUE;
 487 }
 488
 489 void
 490 TimeAxisView::popup_size_menu (guint32 when)
 491 {
 492         if (size_menu == 0) {
 493                 build_size_menu ();
 494         }
 495         size_menu->popup (1, when);
 496 }
 497
 498 void
 499 TimeAxisView::set_selected (bool yn)
 500 {
 501         AxisView::set_selected (yn);
 502
 503         if (_selected) {
 504                 controls_ebox.set_name (controls_base_selected_name);
 505                 controls_frame.set_name (controls_base_selected_name);
 506
 507                 /* propagate any existing selection, if the mode is right */
 508
 509                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 510                         show_selection (editor.get_selection().time);
 511                 }
 512
 513         } else {
 514                 controls_ebox.set_name (controls_base_unselected_name);
 515                 controls_frame.set_name (controls_base_unselected_name);
 516
 517                 hide_selection ();
 518
 519                 /* children will be set for the yn=true case. but when deselecting
 520                    the editor only has a list of top-level trackviews, so we
 521                    have to do this here.
 522                 */
 523
 524                 for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 525                         (*i)->set_selected (false);
 526                 }
 527
 528
 529         }
 530 }
 531
 532 void
 533 TimeAxisView::build_size_menu ()
 534 {
 535         using namespace Menu_Helpers;
 536
 537         size_menu = new Menu;
 538         size_menu->set_name ("ArdourContextMenu");
 539         MenuList& items = size_menu->items();
 540
 541         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 542         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 543         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 544         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 545         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height),Smaller)));
 546         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 547 }
 548
 549 void
 550 TimeAxisView::build_display_menu ()
 551 {
 552         using namespace Menu_Helpers;
 553
 554         display_menu = new Menu;
 555         display_menu->set_name ("ArdourContextMenu");
 556
 557         // Just let implementing classes define what goes into the manu
 558 }
 559
 560 void
 561 TimeAxisView::set_samples_per_unit (double spu)
 562 {
 563         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 564                 (*i)->set_samples_per_unit (spu);
 565         }
 566 }
 567
 568 void
 569 TimeAxisView::show_timestretch (jack_nframes_t start, jack_nframes_t end)
 570 {
 571         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 572                 (*i)->show_timestretch (start, end);
 573         }
 574 }
 575
 576 void
 577 TimeAxisView::hide_timestretch ()
 578 {
 579         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 580                 (*i)->hide_timestretch ();
 581         }
 582 }
 583
 584 void
 585 TimeAxisView::show_selection (TimeSelection& ts)
 586 {
 587         double x1;
 588         double x2;
 589         double y2;
 590         SelectionRect *rect;
 591
 592         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 593                 (*i)->show_selection (ts);
 594         }
 595
 596         if (canvas_item_visible (selection_group)) {
 597                 while (!used_selection_rects.empty()) {
 598                         free_selection_rects.push_front (used_selection_rects.front());
 599                         used_selection_rects.pop_front();
 600                         free_selection_rects.front()->rect->hide();
 601                         free_selection_rects.front()->start_trim->hide();
 602                         free_selection_rects.front()->end_trim->hide();
 603                 }
 604                 selection_group->hide();
 605         }
 606
 607         selection_group->show();
 608         selection_group->raise_to_top();
 609
 610         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 611                 jack_nframes_t start, end, cnt;
 612
 613                 start = (*i).start;
 614                 end = (*i).end;
 615                 cnt = end - start + 1;
 616
 617                 rect = get_selection_rect ((*i).id);
 618
 619                 x1 = start / editor.get_current_zoom();
 620                 x2 = (start + cnt - 1) / editor.get_current_zoom();
 621                 y2 = height;
 622
 623                 rect->rect->property_x1() = x1;
 624                 rect->rect->property_y1() = 1.0;
 625                 rect->rect->property_x2() = x2;
 626                 rect->rect->property_y2() = y2;
 627
 628                 // trim boxes are at the top for selections
 629
 630                 if (x2 > x1) {
 631                         rect->start_trim->property_x1() = x1;
 632                         rect->start_trim->property_y1() = 1.0;
 633                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 634                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 635
 636                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 637                         rect->end_trim->property_y1() = 1.0;
 638                         rect->end_trim->property_x2() = x2;
 639                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 640
 641                         rect->start_trim->show();
 642                         rect->end_trim->show();
 643                 } else {
 644                         rect->start_trim->hide();
 645                         rect->end_trim->hide();
 646                 }
 647
 648                 rect->rect->show ();
 649                 used_selection_rects.push_back (rect);
 650         }
 651 }
 652
 653 void
 654 TimeAxisView::reshow_selection (TimeSelection& ts)
 655 {
 656         show_selection (ts);
 657
 658         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 659                 (*i)->show_selection (ts);
 660         }
 661 }
 662
 663 void
 664 TimeAxisView::hide_selection ()
 665 {
 666         if (canvas_item_visible (selection_group)) {
 667                 while (!used_selection_rects.empty()) {
 668                         free_selection_rects.push_front (used_selection_rects.front());
 669                         used_selection_rects.pop_front();
 670                         free_selection_rects.front()->rect->hide();
 671                         free_selection_rects.front()->start_trim->hide();
 672                         free_selection_rects.front()->end_trim->hide();
 673                 }
 674                 selection_group->hide();
 675         }
 676
 677         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 678                 (*i)->hide_selection ();
 679         }
 680 }
 681
 682 void
 683 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 684 {
 685         /* find the selection rect this is for. we have the item corresponding to one
 686            of the trim handles.
 687          */
 688
 689         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 690                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 691
 692                         /* make one trim handle be "above" the other so that if they overlap,
 693                            the top one is the one last used.
 694                         */
 695
 696                         (*i)->rect->raise_to_top ();
 697                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 698                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 699
 700                         break;
 701                 }
 702         }
 703 }
 704
 705 SelectionRect *
 706 TimeAxisView::get_selection_rect (uint32_t id)
 707 {
 708         SelectionRect *rect;
 709
 710         /* check to see if we already have a visible rect for this particular selection ID */
 711
 712         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 713                 if ((*i)->id == id) {
 714                         return (*i);
 715                 }
 716         }
 717
 718         /* ditto for the free rect list */
 719
 720         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 721                 if ((*i)->id == id) {
 722                         free_selection_rects.erase (i);
 723                         return (*i);
 724                 }
 725         }
 726
 727         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 728
 729         if (free_selection_rects.empty()) {
 730
 731                 rect = new SelectionRect;
 732
 733                 rect->rect = new SimpleRect (*selection_group);
 734                 rect->rect->property_x1() = 0.0;
 735                 rect->rect->property_y1() = 0.0;
 736                 rect->rect->property_x2() = 0.0;
 737                 rect->rect->property_y2() = 0.0;
 738                 rect->rect->property_fill_color_rgba() = color_map[cSelectionRectFill];
 739                 rect->rect->property_outline_color_rgba() = color_map[cSelectionRectOutline];
 740
 741                 rect->start_trim = new SimpleRect (*selection_group);
 742                 rect->start_trim->property_x1() = 0.0;
 743                 rect->start_trim->property_x2() = 0.0;
 744                 rect->start_trim->property_fill_color_rgba() = color_map[cSelectionStartFill];
 745                 rect->start_trim->property_outline_color_rgba() = color_map[cSelectionStartOutline];
 746
 747                 rect->end_trim = new SimpleRect (*selection_group);
 748                 rect->end_trim->property_x1() = 0.0;
 749                 rect->end_trim->property_x2() = 0.0;
 750                 rect->end_trim->property_fill_color_rgba() = color_map[cSelectionEndFill];
 751                 rect->end_trim->property_outline_color_rgba() = color_map[cSelectionEndOutline];
 752
 753                 free_selection_rects.push_front (rect);
 754
 755                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 756                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 757                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 758         }
 759
 760         rect = free_selection_rects.front();
 761         rect->id = id;
 762         free_selection_rects.pop_front();
 763         return rect;
 764 }
 765
 766 bool
 767 TimeAxisView::is_child (TimeAxisView* tav)
 768 {
 769         return find (children.begin(), children.end(), tav) != children.end();
 770 }
 771
 772 void
 773 TimeAxisView::add_child (TimeAxisView* child)
 774 {
 775         children.push_back (child);
 776 }
 777
 778 void
 779 TimeAxisView::remove_child (TimeAxisView* child)
 780 {
 781         vector<TimeAxisView*>::iterator i;
 782
 783         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 784                 children.erase (i);
 785         }
 786 }
 787
 788 void
 789 TimeAxisView::get_selectables (jack_nframes_t start, jack_nframes_t end, double top, double bot, list<Selectable*>& result)
 790 {
 791         return;
 792 }
 793
 794 void
 795 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 796 {
 797         return;
 798 }
 799
 800 bool
 801 TimeAxisView::touched (double top, double bot)
 802 {
 803         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 804            y_position is the "origin" or "top" of the track.
 805          */
 806
 807         double mybot = y_position + height; // XXX need to include Editor::track_spacing;
 808
 809         return ((y_position <= bot && y_position >= top) ||
 810                 ((mybot <= bot) && (top < mybot)) ||
 811                 (mybot >= bot && y_position < top));
 812 }
 813
 814 void
 815 TimeAxisView::set_parent (TimeAxisView& p)
 816 {
 817         parent = &p;
 818 }
 819
 820 bool
 821 TimeAxisView::has_state () const
 822 {
 823         return _has_state;
 824 }
 825
 826 TimeAxisView*
 827 TimeAxisView::get_parent_with_state ()
 828 {
 829         if (parent == 0) {
 830                 return 0;
 831         }
 832
 833         if (parent->has_state()) {
 834                 return parent;
 835         }
 836
 837         return parent->get_parent_with_state ();
 838 }
 839
 840 void
 841 TimeAxisView::set_state (const XMLNode& node)
 842 {
 843         const XMLProperty *prop;
 844
 845         if ((prop = node.property ("track_height")) != 0) {
 846
 847                 if (prop->value() == "largest") {
 848                         set_height (Largest);
 849                 } else if (prop->value() == "large") {
 850                         set_height (Large);
 851                 } else if (prop->value() == "larger") {
 852                         set_height (Larger);
 853                 } else if (prop->value() == "normal") {
 854                         set_height (Normal);
 855                 } else if (prop->value() == "smaller") {
 856                         set_height (Smaller);
 857                 } else if (prop->value() == "small") {
 858                         set_height (Small);
 859                 } else {
 860                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 861                         set_height (Normal);
 862                 }
 863
 864         } else {
 865                 set_height (Normal);
 866         }
 867 }
 868
 869 void
 870 TimeAxisView::reset_height()
 871 {
 872         set_height_pixels (height);
 873
 874         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 875                 (*i)->set_height ((TrackHeight)(*i)->height);
 876         }
 877 }
 878
 879 uint32_t
 880 TimeAxisView::height_to_pixels (TrackHeight h)
 881 {
 882         switch (h) {
 883         case Largest:
 884                 return hLargest;
 885         case Large:
 886                 return hLarge;
 887         case Larger:
 888                 return hLarger;
 889         case Normal:
 890                 return hNormal;
 891         case Smaller:
 892                 return hSmaller;
 893         case Small:
 894                 return hSmall;
 895         }
 896
 897         // what is wrong with gcc ?
 898
 899         return hNormal;
 900 }
 901
 902 void
 903 TimeAxisView::compute_controls_size_info ()
 904 {
 905         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
 906         Gtk::Table two_row_table (2, 8);
 907         Gtk::Table one_row_table (1, 8);
 908         Button* buttons[5];
 909
 910         window.add (one_row_table);
 911
 912         one_row_table.set_border_width (2);
 913         one_row_table.set_row_spacings (0);
 914         one_row_table.set_col_spacings (0);
 915         one_row_table.set_homogeneous (true);
 916
 917         two_row_table.set_border_width (2);
 918         two_row_table.set_row_spacings (0);
 919         two_row_table.set_col_spacings (0);
 920         two_row_table.set_homogeneous (true);
 921
 922         for (int i = 0; i < 5; ++i) {
 923                 buttons[i] = manage (new Button (X_("f")));
 924                 buttons[i]->set_name ("TrackMuteButton");
 925         }
 926
 927         Gtk::Requisition req;
 928
 929         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 930
 931         one_row_table.show_all ();
 932         one_row_table.size_request (req);
 933
 934         // height required to show 1 row of buttons
 935
 936         hSmaller = req.height + 3;
 937
 938         window.remove ();
 939         window.add (two_row_table);
 940
 941         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 942         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 943         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 944         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 945
 946         two_row_table.show_all ();
 947         two_row_table.size_request (req);
 948
 949         // height required to show all normal buttons
 950
 951         hNormal = req.height + 3;
 952
 953         // these heights are all just larger than normal. no more
 954         // elements are visible (yet).
 955
 956         hLarger = hNormal + 50;
 957         hLarge = hNormal + 150;
 958         hLargest = hNormal + 250;
 959
 960         // height required to show track name
 961
 962         hSmall = 27;
 963 }
 964
 965 void
 966 TimeAxisView::show_name_label ()
 967 {
 968         if (!(name_packing & NameLabelPacked)) {
 969                 name_hbox.pack_start (name_label, true, true);
 970                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
 971                 name_hbox.show ();
 972                 name_label.show ();
 973         }
 974 }
 975
 976 void
 977 TimeAxisView::show_name_entry ()
 978 {
 979         if (!(name_packing & NameEntryPacked)) {
 980                 name_hbox.pack_start (name_entry, true, true);
 981                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
 982                 name_hbox.show ();
 983                 name_entry.show ();
 984         }
 985 }
 986
 987 void
 988 TimeAxisView::hide_name_label ()
 989 {
 990         if (name_packing & NameLabelPacked) {
 991                 name_hbox.remove (name_label);
 992                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
 993         }
 994 }
 995
 996 void
 997 TimeAxisView::hide_name_entry ()
 998 {
 999         if (name_packing & NameEntryPacked) {
1000                 name_hbox.remove (name_entry);
1001                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1002         }
1003 }