gtk2_ardour/time_axis_view.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdlib>
  21 #include <cmath>
  22 #include <algorithm>
  23 #include <string>
  24 #include <list>
  25
  26 #include <libgnomecanvasmm.h>
  27 #include <libgnomecanvasmm/canvas.h>
  28 #include <libgnomecanvasmm/item.h>
  29
  30 #include <pbd/error.h>
  31
  32 #include <gtkmm2ext/utils.h>
  33 #include <gtkmm2ext/selector.h>
  34 #include <gtkmm2ext/stop_signal.h>
  35
  36 #include <ardour/session.h>
  37 #include <ardour/utils.h>
  38 #include <ardour/ladspa_plugin.h>
  39 #include <ardour/processor.h>
  40 #include <ardour/location.h>
  41
  42 #include "ardour_ui.h"
  43 #include "public_editor.h"
  44 #include "time_axis_view.h"
  45 #include "simplerect.h"
  46 #include "simpleline.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 PBD;
  59 using namespace Editing;
  60 using namespace ArdourCanvas;
  61
  62 const double trim_handle_size = 6.0; /* pixels */
  63
  64 uint32_t TimeAxisView::hLargest = 0;
  65 uint32_t TimeAxisView::hLarge = 0;
  66 uint32_t TimeAxisView::hLarger = 0;
  67 uint32_t TimeAxisView::hNormal = 0;
  68 uint32_t TimeAxisView::hSmaller = 0;
  69 uint32_t TimeAxisView::hSmall = 0;
  70 bool TimeAxisView::need_size_info = true;
  71
  72 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  73         : AxisView (sess),
  74           editor (ed),
  75           height_style(Small),
  76           y_position(0),
  77           order(0),
  78           controls_table (2, 7)
  79 {
  80         if (need_size_info) {
  81                 compute_controls_size_info ();
  82                 need_size_info = false;
  83         }
  84
  85         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  86
  87         selection_group = new Group (*canvas_display);
  88         selection_group->hide();
  89
  90         control_parent = 0;
  91         display_menu = 0;
  92         size_menu = 0;
  93         _marked_for_display = false;
  94         _hidden = false;
  95         height = 0;
  96         effective_height = 0;
  97         parent = rent;
  98         _has_state = false;
  99         last_name_entry_key_press_event = 0;
 100         name_packing = NamePackingBits (0);
 101
 102         /*
 103           Create the standard LHS Controls
 104           We create the top-level container and name add the name label here,
 105           subclasses can add to the layout as required
 106         */
 107
 108         name_entry.set_name ("EditorTrackNameDisplay");
 109         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 110         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 111         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 112         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 113         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 114         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 115         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 116
 117         name_label.set_name ("TrackLabel");
 118         name_label.set_alignment (0.0, 0.5);
 119
 120         /* typically, either name_label OR name_entry are visible,
 121            but not both. its up to derived classes to show/hide them as they
 122            wish.
 123         */
 124
 125         name_hbox.show ();
 126
 127         controls_table.set_border_width (2);
 128         controls_table.set_row_spacings (0);
 129         controls_table.set_col_spacings (0);
 130         controls_table.set_homogeneous (true);
 131
 132         controls_table.attach (name_hbox, 0, 4, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 133         controls_table.show_all ();
 134         controls_table.set_no_show_all ();
 135
 136         controls_vbox.pack_start (controls_table, false, false);
 137         controls_vbox.show ();
 138
 139         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 140         controls_ebox.add (controls_vbox);
 141         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 142         controls_ebox.set_flags (CAN_FOCUS);
 143
 144         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 145         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 146
 147         controls_hbox.pack_start (controls_ebox,true,true);
 148         controls_hbox.show ();
 149
 150         //controls_frame.add (controls_hbox);
 151         //controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 152         //controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 153
 154         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 155 }
 156
 157 TimeAxisView::~TimeAxisView()
 158 {
 159         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 160                 delete (*i)->rect;
 161                 delete (*i)->start_trim;
 162                 delete (*i)->end_trim;
 163
 164         }
 165
 166         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 167                 delete (*i)->rect;
 168                 delete (*i)->start_trim;
 169                 delete (*i)->end_trim;
 170         }
 171
 172         if (selection_group) {
 173                 delete selection_group;
 174                 selection_group = 0;
 175         }
 176
 177         if (canvas_display) {
 178                 delete canvas_display;
 179                 canvas_display = 0;
 180         }
 181
 182         if (display_menu) {
 183                 delete display_menu;
 184                 display_menu = 0;
 185         }
 186 }
 187
 188 guint32
 189 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 190 {
 191         gdouble ix1, ix2, iy1, iy2;
 192         effective_height = 0;
 193
 194         if (control_parent) {
 195                 control_parent->reorder_child (controls_hbox, nth);
 196         } else {
 197                 control_parent = parent;
 198                 parent->pack_start (controls_hbox, false, false);
 199                 parent->reorder_child (controls_hbox, nth);
 200         }
 201         controls_hbox.show ();
 202         controls_ebox.show ();
 203
 204         /* the coordinates used here are in the system of the
 205            item's parent ...
 206         */
 207
 208         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 209         Group* pg = canvas_display->property_parent();
 210         pg->i2w (ix1, iy1);
 211
 212         if (iy1 < 0) {
 213                 iy1 = 0;
 214         }
 215
 216         canvas_display->move (0.0, y - iy1);
 217         canvas_display->show();/* XXX not necessary */
 218         y_position = y;
 219         order = nth;
 220         _hidden = false;
 221
 222         /* height in pixels depends on _order, so update it now we've changed _order */
 223         set_height (height_style);
 224
 225         effective_height = height;
 226
 227         /* now show children */
 228
 229         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 230
 231                 if ((*i)->marked_for_display()) {
 232                         (*i)->canvas_display->show();
 233                 }
 234
 235                 if (canvas_item_visible ((*i)->canvas_display)) {
 236                         ++nth;
 237                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 238                 }
 239         }
 240
 241         return effective_height;
 242 }
 243
 244 bool
 245 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 246 {
 247         switch (ev->direction) {
 248         case GDK_SCROLL_UP:
 249                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 250                         step_height (true);
 251                         return true;
 252                 }
 253                 break;
 254
 255         case GDK_SCROLL_DOWN:
 256                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 257                         step_height (false);
 258                         return true;
 259                 }
 260                 break;
 261
 262         default:
 263                 /* no handling for left/right, yet */
 264                 break;
 265         }
 266
 267         return false;
 268 }
 269
 270 bool
 271 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 272 {
 273         switch (ev->button) {
 274         case 1:
 275                 selection_click (ev);
 276                 break;
 277
 278         case 3:
 279                 popup_display_menu (ev->time);
 280                 break;
 281         }
 282
 283         return true;
 284 }
 285
 286 void
 287 TimeAxisView::selection_click (GdkEventButton* ev)
 288 {
 289         Selection::Operation op = Keyboard::selection_type (ev->state);
 290         editor.set_selected_track (*this, op, false);
 291 }
 292
 293 void
 294 TimeAxisView::hide ()
 295 {
 296         if (_hidden) {
 297                 return;
 298         }
 299
 300         canvas_display->hide();
 301         controls_hbox.hide ();
 302
 303         if (control_parent) {
 304                 control_parent->remove (controls_hbox);
 305                 control_parent = 0;
 306         }
 307
 308         y_position = -1;
 309         _hidden = true;
 310
 311         /* now hide children */
 312
 313         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 314                 (*i)->hide ();
 315         }
 316
 317         Hiding ();
 318 }
 319
 320 void
 321 TimeAxisView::step_height (bool bigger)
 322 {
 323
 324        if (height == hLargest) {
 325                if (!bigger) set_height (Large);
 326                return;
 327        }
 328        if (height == hLarge) {
 329                if (bigger) set_height (Largest);
 330                 else set_height (Larger);
 331                return;
 332        }
 333        if (height == hLarger) {
 334                 if (bigger) set_height (Large);
 335                 else set_height (Normal);
 336                return;
 337        }
 338        if (height == hNormal) {
 339                 if (bigger) set_height (Larger);
 340                 else set_height (Smaller);
 341                return;
 342        }
 343        if (height == hSmaller) {
 344                 if (bigger) set_height (Normal);
 345                 else set_height (Small);
 346                return;
 347        }
 348        if (height == hSmall) {
 349                 if (bigger) set_height (Smaller);
 350                return;
 351        }
 352 }
 353
 354 void
 355 TimeAxisView::set_height (TrackHeight h)
 356 {
 357         height_style = h;
 358         set_height_pixels (height_to_pixels (h));
 359 }
 360
 361 void
 362 TimeAxisView::set_height_pixels (uint32_t h)
 363 {
 364         height = h;
 365         controls_hbox.set_size_request (-1, height + ((order == 0) ? 1 : 0));
 366         //cerr << "TimeAxisView::set_height_pixels() called h = " << h << endl;//DEBUG
 367         if (canvas_item_visible (selection_group)) {
 368                 /* resize the selection rect */
 369                 show_selection (editor.get_selection().time);
 370         }
 371
 372 }
 373
 374 bool
 375 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 376 {
 377         PublicEditor::TrackViewList *allviews = 0;
 378         PublicEditor::TrackViewList::iterator i;
 379
 380         switch (ev->keyval) {
 381         case GDK_Escape:
 382                 name_entry.select_region (0,0);
 383                 controls_ebox.grab_focus ();
 384                 name_entry_changed ();
 385                 return true;
 386
 387         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 388          * generates a different ev->keyval, rather than setting
 389          * ev->state.
 390          */
 391         case GDK_ISO_Left_Tab:
 392         case GDK_Tab:
 393                 name_entry_changed ();
 394                 allviews = editor.get_valid_views (0);
 395                 if (allviews != 0) {
 396                         i = find (allviews->begin(), allviews->end(), this);
 397                         if (ev->keyval == GDK_Tab) {
 398                                 if (i != allviews->end()) {
 399                                         do {
 400                                                 if (++i == allviews->end()) { return true; }
 401                                         } while((*i)->hidden());
 402                                 }
 403                         } else {
 404                                 if (i != allviews->begin()) {
 405                                         do {
 406                                                 if (--i == allviews->begin()) { return true; }
 407                                         } while ((*i)->hidden());
 408                                 }
 409                         }
 410
 411                         if ((*i)->height_style == Small) {
 412                                 (*i)->set_height(Smaller);
 413                         }
 414
 415                         (*i)->name_entry.grab_focus();
 416                 }
 417                 return true;
 418
 419         case GDK_Up:
 420         case GDK_Down:
 421                 name_entry_changed ();
 422                 return true;
 423
 424         default:
 425                 break;
 426         }
 427
 428 #ifdef TIMEOUT_NAME_EDIT
 429         /* adapt the timeout to reflect the user's typing speed */
 430
 431         guint32 name_entry_timeout;
 432
 433         if (last_name_entry_key_press_event) {
 434                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 435                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 436         } else {
 437                 /* start with a 1 second timeout */
 438                 name_entry_timeout = 1000;
 439         }
 440
 441         last_name_entry_key_press_event = ev->time;
 442
 443         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 444
 445         name_entry_key_timeout.disconnect();
 446         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 447 #endif
 448
 449         return false;
 450 }
 451
 452 bool
 453 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 454 {
 455         name_entry.select_region (0, -1);
 456         name_entry.set_name ("EditorActiveTrackNameDisplay");
 457         return false;
 458 }
 459
 460 bool
 461 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 462 {
 463         /* clean up */
 464
 465         last_name_entry_key_press_event = 0;
 466         name_entry_key_timeout.disconnect ();
 467         name_entry.set_name ("EditorTrackNameDisplay");
 468         name_entry.select_region (0,0);
 469
 470         /* do the real stuff */
 471
 472         name_entry_changed ();
 473
 474         return false;
 475 }
 476
 477 bool
 478 TimeAxisView::name_entry_key_timed_out ()
 479 {
 480         name_entry_activated();
 481         return false;
 482 }
 483
 484 void
 485 TimeAxisView::name_entry_activated ()
 486 {
 487         controls_ebox.grab_focus();
 488 }
 489
 490 void
 491 TimeAxisView::name_entry_changed ()
 492 {
 493 }
 494
 495 bool
 496 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 497 {
 498         if (ev->button == 3) {
 499                 return true;
 500         }
 501         return false;
 502 }
 503
 504 bool
 505 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 506 {
 507         if (ev->button == 3) {
 508                 popup_display_menu (ev->time);
 509                 return true;
 510         }
 511         return false;
 512 }
 513
 514 void
 515 TimeAxisView::popup_display_menu (guint32 when)
 516 {
 517         if (display_menu == 0) {
 518                 build_display_menu ();
 519         }
 520
 521         editor.set_selected_track (*this, Selection::Add);
 522         display_menu->popup (1, when);
 523 }
 524
 525 gint
 526 TimeAxisView::size_click (GdkEventButton *ev)
 527 {
 528         editor.set_selected_track (*this, Selection::Add);
 529         popup_size_menu (ev->time);
 530         return TRUE;
 531 }
 532
 533 void
 534 TimeAxisView::popup_size_menu (guint32 when)
 535 {
 536         if (size_menu == 0) {
 537                 build_size_menu ();
 538         }
 539         size_menu->popup (1, when);
 540 }
 541
 542 void
 543 TimeAxisView::set_selected (bool yn)
 544 {
 545         if (yn == _selected) {
 546                 return;
 547         }
 548
 549         Selectable::set_selected (yn);
 550
 551         if (_selected) {
 552                 controls_ebox.set_name (controls_base_selected_name);
 553                 controls_hbox.set_name (controls_base_selected_name);
 554
 555                 /* propagate any existing selection, if the mode is right */
 556
 557                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 558                         show_selection (editor.get_selection().time);
 559                 }
 560
 561         } else {
 562                 controls_ebox.set_name (controls_base_unselected_name);
 563                 controls_hbox.set_name (controls_base_unselected_name);
 564
 565                 hide_selection ();
 566
 567                 /* children will be set for the yn=true case. but when deselecting
 568                    the editor only has a list of top-level trackviews, so we
 569                    have to do this here.
 570                 */
 571
 572                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 573                         (*i)->set_selected (false);
 574                 }
 575         }
 576 }
 577
 578 void
 579 TimeAxisView::build_size_menu ()
 580 {
 581         using namespace Menu_Helpers;
 582
 583         size_menu = new Menu;
 584         size_menu->set_name ("ArdourContextMenu");
 585         MenuList& items = size_menu->items();
 586
 587         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 588         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 589         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 590         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 591         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height),Smaller)));
 592         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 593 }
 594
 595 void
 596 TimeAxisView::build_display_menu ()
 597 {
 598         using namespace Menu_Helpers;
 599
 600         display_menu = new Menu;
 601         display_menu->set_name ("ArdourContextMenu");
 602
 603         // Just let implementing classes define what goes into the manu
 604 }
 605
 606 void
 607 TimeAxisView::set_samples_per_unit (double spu)
 608 {
 609         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 610                 (*i)->set_samples_per_unit (spu);
 611         }
 612 }
 613
 614 void
 615 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 616 {
 617         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 618                 (*i)->show_timestretch (start, end);
 619         }
 620 }
 621
 622 void
 623 TimeAxisView::hide_timestretch ()
 624 {
 625         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 626                 (*i)->hide_timestretch ();
 627         }
 628 }
 629
 630 void
 631 TimeAxisView::show_selection (TimeSelection& ts)
 632 {
 633         double x1;
 634         double x2;
 635         double y2;
 636         SelectionRect *rect;
 637
 638         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 639                 (*i)->show_selection (ts);
 640         }
 641
 642         if (canvas_item_visible (selection_group)) {
 643                 while (!used_selection_rects.empty()) {
 644                         free_selection_rects.push_front (used_selection_rects.front());
 645                         used_selection_rects.pop_front();
 646                         free_selection_rects.front()->rect->hide();
 647                         free_selection_rects.front()->start_trim->hide();
 648                         free_selection_rects.front()->end_trim->hide();
 649                 }
 650                 selection_group->hide();
 651         }
 652
 653         selection_group->show();
 654         selection_group->raise_to_top();
 655
 656         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 657                 nframes_t start, end, cnt;
 658
 659                 start = (*i).start;
 660                 end = (*i).end;
 661                 cnt = end - start + 1;
 662
 663                 rect = get_selection_rect ((*i).id);
 664
 665                 x1 = editor.frame_to_unit (start);
 666                 x2 = editor.frame_to_unit (start + cnt - 1);
 667                 y2 = height;
 668
 669                 rect->rect->property_x1() = x1;
 670                 rect->rect->property_y1() = 1.0;
 671                 rect->rect->property_x2() = x2;
 672                 rect->rect->property_y2() = y2;
 673
 674                 // trim boxes are at the top for selections
 675
 676                 if (x2 > x1) {
 677                         rect->start_trim->property_x1() = x1;
 678                         rect->start_trim->property_y1() = 1.0;
 679                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 680                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 681
 682                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 683                         rect->end_trim->property_y1() = 1.0;
 684                         rect->end_trim->property_x2() = x2;
 685                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 686
 687                         rect->start_trim->show();
 688                         rect->end_trim->show();
 689                 } else {
 690                         rect->start_trim->hide();
 691                         rect->end_trim->hide();
 692                 }
 693
 694                 rect->rect->show ();
 695                 used_selection_rects.push_back (rect);
 696         }
 697 }
 698
 699 void
 700 TimeAxisView::reshow_selection (TimeSelection& ts)
 701 {
 702         show_selection (ts);
 703
 704         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 705                 (*i)->show_selection (ts);
 706         }
 707 }
 708
 709 void
 710 TimeAxisView::hide_selection ()
 711 {
 712         if (canvas_item_visible (selection_group)) {
 713                 while (!used_selection_rects.empty()) {
 714                         free_selection_rects.push_front (used_selection_rects.front());
 715                         used_selection_rects.pop_front();
 716                         free_selection_rects.front()->rect->hide();
 717                         free_selection_rects.front()->start_trim->hide();
 718                         free_selection_rects.front()->end_trim->hide();
 719                 }
 720                 selection_group->hide();
 721         }
 722
 723         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 724                 (*i)->hide_selection ();
 725         }
 726 }
 727
 728 void
 729 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 730 {
 731         /* find the selection rect this is for. we have the item corresponding to one
 732            of the trim handles.
 733          */
 734
 735         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 736                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 737
 738                         /* make one trim handle be "above" the other so that if they overlap,
 739                            the top one is the one last used.
 740                         */
 741
 742                         (*i)->rect->raise_to_top ();
 743                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 744                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 745
 746                         break;
 747                 }
 748         }
 749 }
 750
 751 SelectionRect *
 752 TimeAxisView::get_selection_rect (uint32_t id)
 753 {
 754         SelectionRect *rect;
 755
 756         /* check to see if we already have a visible rect for this particular selection ID */
 757
 758         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 759                 if ((*i)->id == id) {
 760                         return (*i);
 761                 }
 762         }
 763
 764         /* ditto for the free rect list */
 765
 766         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 767                 if ((*i)->id == id) {
 768                         SelectionRect* ret = (*i);
 769                         free_selection_rects.erase (i);
 770                         return ret;
 771                 }
 772         }
 773
 774         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 775
 776         if (free_selection_rects.empty()) {
 777
 778                 rect = new SelectionRect;
 779
 780                 rect->rect = new SimpleRect (*selection_group);
 781                 rect->rect->property_x1() = 0.0;
 782                 rect->rect->property_y1() = 0.0;
 783                 rect->rect->property_x2() = 0.0;
 784                 rect->rect->property_y2() = 0.0;
 785                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 786                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 787
 788                 rect->start_trim = new SimpleRect (*selection_group);
 789                 rect->start_trim->property_x1() = 0.0;
 790                 rect->start_trim->property_x2() = 0.0;
 791                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 792                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 793
 794                 rect->end_trim = new SimpleRect (*selection_group);
 795                 rect->end_trim->property_x1() = 0.0;
 796                 rect->end_trim->property_x2() = 0.0;
 797                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 798                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 799
 800                 free_selection_rects.push_front (rect);
 801
 802                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 803                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 804                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 805         }
 806
 807         rect = free_selection_rects.front();
 808         rect->id = id;
 809         free_selection_rects.pop_front();
 810         return rect;
 811 }
 812
 813 struct null_deleter { void operator()(void const *) const {} };
 814
 815 bool
 816 TimeAxisView::is_child (TimeAxisView* tav)
 817 {
 818         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 819 }
 820
 821 void
 822 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 823 {
 824         children.push_back (child);
 825 }
 826
 827 void
 828 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 829 {
 830         Children::iterator i;
 831
 832         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 833                 children.erase (i);
 834         }
 835 }
 836
 837 void
 838 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 839 {
 840         return;
 841 }
 842
 843 void
 844 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 845 {
 846         return;
 847 }
 848
 849 bool
 850 TimeAxisView::touched (double top, double bot)
 851 {
 852         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 853            y_position is the "origin" or "top" of the track.
 854          */
 855
 856         double mybot = y_position + height;
 857
 858         return ((y_position <= bot && y_position >= top) ||
 859                 ((mybot <= bot) && (top < mybot)) ||
 860                 (mybot >= bot && y_position < top));
 861 }
 862
 863 void
 864 TimeAxisView::set_parent (TimeAxisView& p)
 865 {
 866         parent = &p;
 867 }
 868
 869 bool
 870 TimeAxisView::has_state () const
 871 {
 872         return _has_state;
 873 }
 874
 875 TimeAxisView*
 876 TimeAxisView::get_parent_with_state ()
 877 {
 878         if (parent == 0) {
 879                 return 0;
 880         }
 881
 882         if (parent->has_state()) {
 883                 return parent;
 884         }
 885
 886         return parent->get_parent_with_state ();
 887 }
 888
 889 void
 890 TimeAxisView::set_state (const XMLNode& node)
 891 {
 892         const XMLProperty *prop;
 893
 894         if ((prop = node.property ("track_height")) != 0) {
 895
 896                 if (prop->value() == "largest") {
 897                         set_height (Largest);
 898                 } else if (prop->value() == "large") {
 899                         set_height (Large);
 900                 } else if (prop->value() == "larger") {
 901                         set_height (Larger);
 902                 } else if (prop->value() == "normal") {
 903                         set_height (Normal);
 904                 } else if (prop->value() == "smaller") {
 905                         set_height (Smaller);
 906                 } else if (prop->value() == "small") {
 907                         set_height (Small);
 908                 } else {
 909                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 910                         set_height (Normal);
 911                 }
 912
 913         } else {
 914                 set_height (Normal);
 915         }
 916 }
 917
 918 void
 919 TimeAxisView::reset_height()
 920 {
 921         set_height_pixels (height);
 922
 923         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 924                 (*i)->set_height_pixels ((TrackHeight)(*i)->height);
 925         }
 926 }
 927
 928 uint32_t
 929 TimeAxisView::height_to_pixels (TrackHeight h)
 930 {
 931         switch (h) {
 932         case Largest:
 933                 return hLargest;
 934         case Large:
 935                 return hLarge;
 936         case Larger:
 937                 return hLarger;
 938         case Normal:
 939                 return hNormal;
 940         case Smaller:
 941                 return hSmaller;
 942         case Small:
 943                 return hSmall;
 944         }
 945
 946         // what is wrong with gcc ?
 947
 948         return hNormal;
 949 }
 950
 951 void
 952 TimeAxisView::compute_controls_size_info ()
 953 {
 954         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
 955         Gtk::Table two_row_table (2, 8);
 956         Gtk::Table one_row_table (1, 8);
 957         Button* buttons[5];
 958         const int border_width = 2;
 959         const int extra_height = (2 * border_width) + 2; // 2 pixels for the controls frame
 960
 961         window.add (one_row_table);
 962
 963         one_row_table.set_border_width (border_width);
 964         one_row_table.set_row_spacings (0);
 965         one_row_table.set_col_spacings (0);
 966         one_row_table.set_homogeneous (true);
 967
 968         two_row_table.set_border_width (border_width);
 969         two_row_table.set_row_spacings (0);
 970         two_row_table.set_col_spacings (0);
 971         two_row_table.set_homogeneous (true);
 972
 973         for (int i = 0; i < 5; ++i) {
 974                 buttons[i] = manage (new Button (X_("f")));
 975                 buttons[i]->set_name ("TrackMuteButton");
 976         }
 977
 978         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 979
 980         one_row_table.show_all ();
 981         Gtk::Requisition req(one_row_table.size_request ());
 982
 983
 984         // height required to show 1 row of buttons
 985
 986         hSmaller = req.height + extra_height;
 987
 988         window.remove ();
 989         window.add (two_row_table);
 990
 991         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 992         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 993         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 994         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 995
 996         two_row_table.show_all ();
 997         req = two_row_table.size_request ();
 998
 999         // height required to show all normal buttons
1000
1001         hNormal = req.height + extra_height;
1002
1003         // these heights are all just larger than normal. no more
1004         // elements are visible (yet).
1005
1006         hLarger = hNormal + 50;
1007         hLarge = hNormal + 150;
1008         hLargest = hNormal + 250;
1009
1010         // height required to show track name
1011
1012         hSmall = 27;
1013 }
1014
1015 void
1016 TimeAxisView::show_name_label ()
1017 {
1018         if (!(name_packing & NameLabelPacked)) {
1019                 name_hbox.pack_start (name_label, true, true);
1020                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1021                 name_hbox.show ();
1022                 name_label.show ();
1023         }
1024 }
1025
1026 void
1027 TimeAxisView::show_name_entry ()
1028 {
1029         if (!(name_packing & NameEntryPacked)) {
1030                 name_hbox.pack_start (name_entry, true, true);
1031                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1032                 name_hbox.show ();
1033                 name_entry.show ();
1034         }
1035 }
1036
1037 void
1038 TimeAxisView::hide_name_label ()
1039 {
1040         if (name_packing & NameLabelPacked) {
1041                 name_hbox.remove (name_label);
1042                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1043         }
1044 }
1045
1046 void
1047 TimeAxisView::hide_name_entry ()
1048 {
1049         if (name_packing & NameEntryPacked) {
1050                 name_hbox.remove (name_entry);
1051                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1052         }
1053 }
1054
1055 void
1056 TimeAxisView::color_handler ()
1057 {
1058
1059         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1060
1061                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1062                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1063
1064                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1065                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1066
1067                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1068                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1069         }
1070
1071         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1072
1073                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1074                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1075
1076                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1077                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1078
1079                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1080                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1081         }
1082 }
1083
1084 TimeAxisView*
1085 TimeAxisView::covers_y_position (double y)
1086 {
1087         if (hidden()) {
1088                 return 0;
1089         }
1090
1091         if (y_position <= y && y < (y_position + height)) {
1092                 return this;
1093         }
1094
1095         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1096                 TimeAxisView* tv;
1097
1098                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1099                         return tv;
1100                 }
1101         }
1102
1103         return 0;
1104 }
1105
1106 void
1107 TimeAxisView::show_temporary_lines (const vector<nframes64_t>& pos)
1108 {
1109         while (temp_lines.size()< pos.size()) {
1110                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1111                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1112                 l->property_y1() = 0;
1113                 l->property_y2() = height;
1114                 temp_lines.push_back (l);
1115         }
1116
1117         while (temp_lines.size() > pos.size()) {
1118                 ArdourCanvas::SimpleLine *line = temp_lines.back();
1119                 temp_lines.pop_back ();
1120                 delete line;
1121         }
1122
1123         vector<nframes64_t>::const_iterator i;
1124         list<ArdourCanvas::SimpleLine*>::iterator l;
1125
1126         for (i = pos.begin(), l = temp_lines.begin(); i != pos.end() && l != temp_lines.end(); ++i, ++l) {
1127                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1128                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1129         }
1130 }
1131
1132 void
1133 TimeAxisView::hide_temporary_lines ()
1134 {
1135         for (list<ArdourCanvas::SimpleLine*>::iterator l = temp_lines.begin(); l != temp_lines.end(); ++l) {
1136                 (*l)->hide ();
1137         }
1138 }