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 "region_view.h"
  46 #include "ghostregion.h"
  47 #include "simplerect.h"
  48 #include "simpleline.h"
  49 #include "selection.h"
  50 #include "keyboard.h"
  51 #include "rgb_macros.h"
  52 #include "utils.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace Gtk;
  57 using namespace Gdk;
  58 using namespace sigc;
  59 using namespace ARDOUR;
  60 using namespace PBD;
  61 using namespace Editing;
  62 using namespace ArdourCanvas;
  63
  64 const double trim_handle_size = 6.0; /* pixels */
  65
  66 uint32_t TimeAxisView::hLargest = 0;
  67 uint32_t TimeAxisView::hLarge = 0;
  68 uint32_t TimeAxisView::hLarger = 0;
  69 uint32_t TimeAxisView::hNormal = 0;
  70 uint32_t TimeAxisView::hSmaller = 0;
  71 uint32_t TimeAxisView::hSmall = 0;
  72 bool TimeAxisView::need_size_info = true;
  73
  74 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  75         : AxisView (sess),
  76           editor (ed),
  77           height_style(Small),
  78           y_position(0),
  79           order(0),
  80           controls_table (2, 7)
  81 {
  82         if (need_size_info) {
  83                 compute_controls_size_info ();
  84                 need_size_info = false;
  85         }
  86
  87         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  88
  89         ghost_group = new Group (*canvas_display);
  90         ghost_group->lower_to_bottom();
  91         ghost_group->show();
  92
  93         selection_group = new Group (*canvas_display);
  94         selection_group->hide();
  95
  96         control_parent = 0;
  97         display_menu = 0;
  98         size_menu = 0;
  99         _marked_for_display = false;
 100         _hidden = false;
 101         in_destructor = false;
 102         height = 0;
 103         effective_height = 0;
 104         parent = rent;
 105         _has_state = false;
 106         last_name_entry_key_press_event = 0;
 107         name_packing = NamePackingBits (0);
 108
 109         /*
 110           Create the standard LHS Controls
 111           We create the top-level container and name add the name label here,
 112           subclasses can add to the layout as required
 113         */
 114
 115         name_entry.set_name ("EditorTrackNameDisplay");
 116         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 117         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 118         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 119         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 120         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 121         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 122         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 123
 124         name_label.set_name ("TrackLabel");
 125         name_label.set_alignment (0.0, 0.5);
 126
 127         /* typically, either name_label OR name_entry are visible,
 128            but not both. its up to derived classes to show/hide them as they
 129            wish.
 130         */
 131
 132         name_hbox.show ();
 133
 134         controls_table.set_border_width (2);
 135         controls_table.set_row_spacings (0);
 136         controls_table.set_col_spacings (0);
 137         controls_table.set_homogeneous (true);
 138
 139         controls_table.attach (name_hbox, 0, 4, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 140         controls_table.show_all ();
 141         controls_table.set_no_show_all ();
 142
 143         controls_vbox.pack_start (controls_table, false, false);
 144         controls_vbox.show ();
 145
 146         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 147         controls_ebox.add (controls_vbox);
 148         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 149         controls_ebox.set_flags (CAN_FOCUS);
 150
 151         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 152         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 153
 154         controls_hbox.pack_start (controls_ebox,true,true);
 155         controls_hbox.show ();
 156
 157         //controls_frame.add (controls_hbox);
 158         //controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 159         //controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 160
 161         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 162 }
 163
 164 TimeAxisView::~TimeAxisView()
 165 {
 166         in_destructor = true;
 167
 168         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 169                 delete *i;
 170         }
 171
 172         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 173                 delete (*i)->rect;
 174                 delete (*i)->start_trim;
 175                 delete (*i)->end_trim;
 176
 177         }
 178
 179         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 180                 delete (*i)->rect;
 181                 delete (*i)->start_trim;
 182                 delete (*i)->end_trim;
 183         }
 184
 185         if (selection_group) {
 186                 delete selection_group;
 187                 selection_group = 0;
 188         }
 189
 190         if (canvas_display) {
 191                 delete canvas_display;
 192                 canvas_display = 0;
 193         }
 194
 195         if (display_menu) {
 196                 delete display_menu;
 197                 display_menu = 0;
 198         }
 199 }
 200
 201 guint32
 202 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 203 {
 204         gdouble ix1, ix2, iy1, iy2;
 205         effective_height = 0;
 206
 207         if (control_parent) {
 208                 control_parent->reorder_child (controls_hbox, nth);
 209         } else {
 210                 control_parent = parent;
 211                 parent->pack_start (controls_hbox, false, false);
 212                 parent->reorder_child (controls_hbox, nth);
 213         }
 214         controls_hbox.show ();
 215         controls_ebox.show ();
 216
 217         /* the coordinates used here are in the system of the
 218            item's parent ...
 219         */
 220
 221         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 222         Group* pg = canvas_display->property_parent();
 223         pg->i2w (ix1, iy1);
 224
 225         if (iy1 < 0) {
 226                 iy1 = 0;
 227         }
 228
 229         canvas_display->move (0.0, y - iy1);
 230         canvas_display->show();/* XXX not necessary */
 231         y_position = y;
 232         order = nth;
 233         _hidden = false;
 234
 235         /* height in pixels depends on _order, so update it now we've changed _order */
 236         set_height (height_style);
 237
 238         effective_height = height;
 239
 240         /* now show children */
 241
 242         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 243
 244                 if ((*i)->marked_for_display()) {
 245                         (*i)->canvas_display->show();
 246                 }
 247
 248                 if (canvas_item_visible ((*i)->canvas_display)) {
 249                         ++nth;
 250                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 251                 }
 252         }
 253
 254         return effective_height;
 255 }
 256
 257 bool
 258 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 259 {
 260         switch (ev->direction) {
 261         case GDK_SCROLL_UP:
 262                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 263                         step_height (true);
 264                         return true;
 265                 }
 266                 break;
 267
 268         case GDK_SCROLL_DOWN:
 269                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 270                         step_height (false);
 271                         return true;
 272                 }
 273                 break;
 274
 275         default:
 276                 /* no handling for left/right, yet */
 277                 break;
 278         }
 279
 280         return false;
 281 }
 282
 283 bool
 284 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 285 {
 286         switch (ev->button) {
 287         case 1:
 288                 selection_click (ev);
 289                 break;
 290
 291         case 3:
 292                 popup_display_menu (ev->time);
 293                 break;
 294         }
 295
 296         return true;
 297 }
 298
 299 void
 300 TimeAxisView::selection_click (GdkEventButton* ev)
 301 {
 302         Selection::Operation op = Keyboard::selection_type (ev->state);
 303         editor.set_selected_track (*this, op, false);
 304 }
 305
 306 void
 307 TimeAxisView::hide ()
 308 {
 309         if (_hidden) {
 310                 return;
 311         }
 312
 313         canvas_display->hide();
 314         controls_hbox.hide ();
 315
 316         if (control_parent) {
 317                 control_parent->remove (controls_hbox);
 318                 control_parent = 0;
 319         }
 320
 321         y_position = -1;
 322         _hidden = true;
 323
 324         /* now hide children */
 325
 326         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 327                 (*i)->hide ();
 328         }
 329
 330         Hiding ();
 331 }
 332
 333 void
 334 TimeAxisView::step_height (bool bigger)
 335 {
 336
 337        if (height == hLargest) {
 338                if (!bigger) set_height (Large);
 339                return;
 340        }
 341        if (height == hLarge) {
 342                if (bigger) set_height (Largest);
 343                 else set_height (Larger);
 344                return;
 345        }
 346        if (height == hLarger) {
 347                 if (bigger) set_height (Large);
 348                 else set_height (Normal);
 349                return;
 350        }
 351        if (height == hNormal) {
 352                 if (bigger) set_height (Larger);
 353                 else set_height (Smaller);
 354                return;
 355        }
 356        if (height == hSmaller) {
 357                 if (bigger) set_height (Normal);
 358                 else set_height (Small);
 359                return;
 360        }
 361        if (height == hSmall) {
 362                 if (bigger) set_height (Smaller);
 363                return;
 364        }
 365 }
 366
 367 void
 368 TimeAxisView::set_height (TrackHeight h)
 369 {
 370         height_style = h;
 371         set_height_pixels (height_to_pixels (h));
 372
 373         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 374                 (*i)->set_height ();
 375         }
 376 }
 377
 378 void
 379 TimeAxisView::set_height_pixels (uint32_t h)
 380 {
 381         height = h;
 382         controls_hbox.set_size_request (-1, height + ((order == 0) ? 1 : 0));
 383         //cerr << "TimeAxisView::set_height_pixels() called h = " << h << endl;//DEBUG
 384         if (canvas_item_visible (selection_group)) {
 385                 /* resize the selection rect */
 386                 show_selection (editor.get_selection().time);
 387         }
 388
 389 }
 390
 391 bool
 392 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 393 {
 394         PublicEditor::TrackViewList *allviews = 0;
 395         PublicEditor::TrackViewList::iterator i;
 396
 397         switch (ev->keyval) {
 398         case GDK_Escape:
 399                 name_entry.select_region (0,0);
 400                 controls_ebox.grab_focus ();
 401                 name_entry_changed ();
 402                 return true;
 403
 404         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 405          * generates a different ev->keyval, rather than setting
 406          * ev->state.
 407          */
 408         case GDK_ISO_Left_Tab:
 409         case GDK_Tab:
 410                 name_entry_changed ();
 411                 allviews = editor.get_valid_views (0);
 412                 if (allviews != 0) {
 413                         i = find (allviews->begin(), allviews->end(), this);
 414                         if (ev->keyval == GDK_Tab) {
 415                                 if (i != allviews->end()) {
 416                                         do {
 417                                                 if (++i == allviews->end()) { return true; }
 418                                         } while((*i)->hidden());
 419                                 }
 420                         } else {
 421                                 if (i != allviews->begin()) {
 422                                         do {
 423                                                 if (--i == allviews->begin()) { return true; }
 424                                         } while ((*i)->hidden());
 425                                 }
 426                         }
 427
 428                         if ((*i)->height_style == Small) {
 429                                 (*i)->set_height(Smaller);
 430                         }
 431
 432                         (*i)->name_entry.grab_focus();
 433                 }
 434                 return true;
 435
 436         case GDK_Up:
 437         case GDK_Down:
 438                 name_entry_changed ();
 439                 return true;
 440
 441         default:
 442                 break;
 443         }
 444
 445 #ifdef TIMEOUT_NAME_EDIT
 446         /* adapt the timeout to reflect the user's typing speed */
 447
 448         guint32 name_entry_timeout;
 449
 450         if (last_name_entry_key_press_event) {
 451                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 452                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 453         } else {
 454                 /* start with a 1 second timeout */
 455                 name_entry_timeout = 1000;
 456         }
 457
 458         last_name_entry_key_press_event = ev->time;
 459
 460         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 461
 462         name_entry_key_timeout.disconnect();
 463         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 464 #endif
 465
 466         return false;
 467 }
 468
 469 bool
 470 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 471 {
 472         name_entry.select_region (0, -1);
 473         name_entry.set_name ("EditorActiveTrackNameDisplay");
 474         return false;
 475 }
 476
 477 bool
 478 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 479 {
 480         /* clean up */
 481
 482         last_name_entry_key_press_event = 0;
 483         name_entry_key_timeout.disconnect ();
 484         name_entry.set_name ("EditorTrackNameDisplay");
 485         name_entry.select_region (0,0);
 486
 487         /* do the real stuff */
 488
 489         name_entry_changed ();
 490
 491         return false;
 492 }
 493
 494 bool
 495 TimeAxisView::name_entry_key_timed_out ()
 496 {
 497         name_entry_activated();
 498         return false;
 499 }
 500
 501 void
 502 TimeAxisView::name_entry_activated ()
 503 {
 504         controls_ebox.grab_focus();
 505 }
 506
 507 void
 508 TimeAxisView::name_entry_changed ()
 509 {
 510 }
 511
 512 bool
 513 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 514 {
 515         if (ev->button == 3) {
 516                 return true;
 517         }
 518         return false;
 519 }
 520
 521 bool
 522 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 523 {
 524         if (ev->button == 3) {
 525                 popup_display_menu (ev->time);
 526                 return true;
 527         }
 528         return false;
 529 }
 530
 531 void
 532 TimeAxisView::popup_display_menu (guint32 when)
 533 {
 534         if (display_menu == 0) {
 535                 build_display_menu ();
 536         }
 537
 538         editor.set_selected_track (*this, Selection::Add);
 539         display_menu->popup (1, when);
 540 }
 541
 542 gint
 543 TimeAxisView::size_click (GdkEventButton *ev)
 544 {
 545         editor.set_selected_track (*this, Selection::Add);
 546         popup_size_menu (ev->time);
 547         return TRUE;
 548 }
 549
 550 void
 551 TimeAxisView::popup_size_menu (guint32 when)
 552 {
 553         if (size_menu == 0) {
 554                 build_size_menu ();
 555         }
 556         size_menu->popup (1, when);
 557 }
 558
 559 void
 560 TimeAxisView::set_selected (bool yn)
 561 {
 562         if (yn == _selected) {
 563                 return;
 564         }
 565
 566         Selectable::set_selected (yn);
 567
 568         if (_selected) {
 569                 controls_ebox.set_name (controls_base_selected_name);
 570                 controls_hbox.set_name (controls_base_selected_name);
 571
 572                 /* propagate any existing selection, if the mode is right */
 573
 574                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 575                         show_selection (editor.get_selection().time);
 576                 }
 577
 578         } else {
 579                 controls_ebox.set_name (controls_base_unselected_name);
 580                 controls_hbox.set_name (controls_base_unselected_name);
 581
 582                 hide_selection ();
 583
 584                 /* children will be set for the yn=true case. but when deselecting
 585                    the editor only has a list of top-level trackviews, so we
 586                    have to do this here.
 587                 */
 588
 589                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 590                         (*i)->set_selected (false);
 591                 }
 592         }
 593 }
 594
 595 void
 596 TimeAxisView::build_size_menu ()
 597 {
 598         using namespace Menu_Helpers;
 599
 600         size_menu = new Menu;
 601         size_menu->set_name ("ArdourContextMenu");
 602         MenuList& items = size_menu->items();
 603
 604         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 605         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 606         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 607         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 608         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height),Smaller)));
 609         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 610 }
 611
 612 void
 613 TimeAxisView::build_display_menu ()
 614 {
 615         using namespace Menu_Helpers;
 616
 617         display_menu = new Menu;
 618         display_menu->set_name ("ArdourContextMenu");
 619
 620         // Just let implementing classes define what goes into the manu
 621 }
 622
 623 void
 624 TimeAxisView::set_samples_per_unit (double spu)
 625 {
 626         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 627                 (*i)->set_samples_per_unit (spu);
 628         }
 629 }
 630
 631 void
 632 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 633 {
 634         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 635                 (*i)->show_timestretch (start, end);
 636         }
 637 }
 638
 639 void
 640 TimeAxisView::hide_timestretch ()
 641 {
 642         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 643                 (*i)->hide_timestretch ();
 644         }
 645 }
 646
 647 void
 648 TimeAxisView::show_selection (TimeSelection& ts)
 649 {
 650         double x1;
 651         double x2;
 652         double y2;
 653         SelectionRect *rect;
 654
 655         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 656                 (*i)->show_selection (ts);
 657         }
 658
 659         if (canvas_item_visible (selection_group)) {
 660                 while (!used_selection_rects.empty()) {
 661                         free_selection_rects.push_front (used_selection_rects.front());
 662                         used_selection_rects.pop_front();
 663                         free_selection_rects.front()->rect->hide();
 664                         free_selection_rects.front()->start_trim->hide();
 665                         free_selection_rects.front()->end_trim->hide();
 666                 }
 667                 selection_group->hide();
 668         }
 669
 670         selection_group->show();
 671         selection_group->raise_to_top();
 672
 673         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 674                 nframes_t start, end, cnt;
 675
 676                 start = (*i).start;
 677                 end = (*i).end;
 678                 cnt = end - start + 1;
 679
 680                 rect = get_selection_rect ((*i).id);
 681
 682                 x1 = editor.frame_to_unit (start);
 683                 x2 = editor.frame_to_unit (start + cnt - 1);
 684                 y2 = height;
 685
 686                 rect->rect->property_x1() = x1;
 687                 rect->rect->property_y1() = 1.0;
 688                 rect->rect->property_x2() = x2;
 689                 rect->rect->property_y2() = y2;
 690
 691                 // trim boxes are at the top for selections
 692
 693                 if (x2 > x1) {
 694                         rect->start_trim->property_x1() = x1;
 695                         rect->start_trim->property_y1() = 1.0;
 696                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 697                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 698
 699                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 700                         rect->end_trim->property_y1() = 1.0;
 701                         rect->end_trim->property_x2() = x2;
 702                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 703
 704                         rect->start_trim->show();
 705                         rect->end_trim->show();
 706                 } else {
 707                         rect->start_trim->hide();
 708                         rect->end_trim->hide();
 709                 }
 710
 711                 rect->rect->show ();
 712                 used_selection_rects.push_back (rect);
 713         }
 714 }
 715
 716 void
 717 TimeAxisView::reshow_selection (TimeSelection& ts)
 718 {
 719         show_selection (ts);
 720
 721         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 722                 (*i)->show_selection (ts);
 723         }
 724 }
 725
 726 void
 727 TimeAxisView::hide_selection ()
 728 {
 729         if (canvas_item_visible (selection_group)) {
 730                 while (!used_selection_rects.empty()) {
 731                         free_selection_rects.push_front (used_selection_rects.front());
 732                         used_selection_rects.pop_front();
 733                         free_selection_rects.front()->rect->hide();
 734                         free_selection_rects.front()->start_trim->hide();
 735                         free_selection_rects.front()->end_trim->hide();
 736                 }
 737                 selection_group->hide();
 738         }
 739
 740         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 741                 (*i)->hide_selection ();
 742         }
 743 }
 744
 745 void
 746 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 747 {
 748         /* find the selection rect this is for. we have the item corresponding to one
 749            of the trim handles.
 750          */
 751
 752         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 753                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 754
 755                         /* make one trim handle be "above" the other so that if they overlap,
 756                            the top one is the one last used.
 757                         */
 758
 759                         (*i)->rect->raise_to_top ();
 760                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 761                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 762
 763                         break;
 764                 }
 765         }
 766 }
 767
 768 SelectionRect *
 769 TimeAxisView::get_selection_rect (uint32_t id)
 770 {
 771         SelectionRect *rect;
 772
 773         /* check to see if we already have a visible rect for this particular selection ID */
 774
 775         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 776                 if ((*i)->id == id) {
 777                         return (*i);
 778                 }
 779         }
 780
 781         /* ditto for the free rect list */
 782
 783         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 784                 if ((*i)->id == id) {
 785                         SelectionRect* ret = (*i);
 786                         free_selection_rects.erase (i);
 787                         return ret;
 788                 }
 789         }
 790
 791         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 792
 793         if (free_selection_rects.empty()) {
 794
 795                 rect = new SelectionRect;
 796
 797                 rect->rect = new SimpleRect (*selection_group);
 798                 rect->rect->property_x1() = 0.0;
 799                 rect->rect->property_y1() = 0.0;
 800                 rect->rect->property_x2() = 0.0;
 801                 rect->rect->property_y2() = 0.0;
 802                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 803                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 804
 805                 rect->start_trim = new SimpleRect (*selection_group);
 806                 rect->start_trim->property_x1() = 0.0;
 807                 rect->start_trim->property_x2() = 0.0;
 808                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 809                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 810
 811                 rect->end_trim = new SimpleRect (*selection_group);
 812                 rect->end_trim->property_x1() = 0.0;
 813                 rect->end_trim->property_x2() = 0.0;
 814                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 815                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 816
 817                 free_selection_rects.push_front (rect);
 818
 819                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 820                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 821                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 822         }
 823
 824         rect = free_selection_rects.front();
 825         rect->id = id;
 826         free_selection_rects.pop_front();
 827         return rect;
 828 }
 829
 830 struct null_deleter { void operator()(void const *) const {} };
 831
 832 bool
 833 TimeAxisView::is_child (TimeAxisView* tav)
 834 {
 835         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 836 }
 837
 838 void
 839 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 840 {
 841         children.push_back (child);
 842 }
 843
 844 void
 845 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 846 {
 847         Children::iterator i;
 848
 849         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 850                 children.erase (i);
 851         }
 852 }
 853
 854 void
 855 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 856 {
 857         return;
 858 }
 859
 860 void
 861 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 862 {
 863         return;
 864 }
 865
 866 void
 867 TimeAxisView::add_ghost (RegionView* rv) {
 868         GhostRegion* gr = rv->add_ghost (*this);
 869
 870         if(gr) {
 871                 ghosts.push_back(gr);
 872                 gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 873         }
 874 }
 875
 876 void
 877 TimeAxisView::remove_ghost (RegionView* rv) {
 878         rv->remove_ghost_in (*this);
 879 }
 880
 881 void
 882 TimeAxisView::erase_ghost (GhostRegion* gr) {
 883         if(in_destructor) {
 884                 return;
 885         }
 886
 887         list<GhostRegion*>::iterator i;
 888
 889         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 890                 if ((*i) == gr) {
 891                         ghosts.erase (i);
 892                         break;
 893                 }
 894         }
 895 }
 896
 897 bool
 898 TimeAxisView::touched (double top, double bot)
 899 {
 900         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 901            y_position is the "origin" or "top" of the track.
 902          */
 903
 904         double mybot = y_position + height;
 905
 906         return ((y_position <= bot && y_position >= top) ||
 907                 ((mybot <= bot) && (top < mybot)) ||
 908                 (mybot >= bot && y_position < top));
 909 }
 910
 911 void
 912 TimeAxisView::set_parent (TimeAxisView& p)
 913 {
 914         parent = &p;
 915 }
 916
 917 bool
 918 TimeAxisView::has_state () const
 919 {
 920         return _has_state;
 921 }
 922
 923 TimeAxisView*
 924 TimeAxisView::get_parent_with_state ()
 925 {
 926         if (parent == 0) {
 927                 return 0;
 928         }
 929
 930         if (parent->has_state()) {
 931                 return parent;
 932         }
 933
 934         return parent->get_parent_with_state ();
 935 }
 936
 937 void
 938 TimeAxisView::set_state (const XMLNode& node)
 939 {
 940         const XMLProperty *prop;
 941
 942         if ((prop = node.property ("track_height")) != 0) {
 943
 944                 if (prop->value() == "largest") {
 945                         set_height (Largest);
 946                 } else if (prop->value() == "large") {
 947                         set_height (Large);
 948                 } else if (prop->value() == "larger") {
 949                         set_height (Larger);
 950                 } else if (prop->value() == "normal") {
 951                         set_height (Normal);
 952                 } else if (prop->value() == "smaller") {
 953                         set_height (Smaller);
 954                 } else if (prop->value() == "small") {
 955                         set_height (Small);
 956                 } else {
 957                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 958                         set_height (Normal);
 959                 }
 960
 961         } else {
 962                 set_height (Normal);
 963         }
 964 }
 965
 966 void
 967 TimeAxisView::reset_height()
 968 {
 969         set_height_pixels (height);
 970
 971         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 972                 (*i)->set_height_pixels ((TrackHeight)(*i)->height);
 973         }
 974 }
 975
 976 uint32_t
 977 TimeAxisView::height_to_pixels (TrackHeight h)
 978 {
 979         switch (h) {
 980         case Largest:
 981                 return hLargest;
 982         case Large:
 983                 return hLarge;
 984         case Larger:
 985                 return hLarger;
 986         case Normal:
 987                 return hNormal;
 988         case Smaller:
 989                 return hSmaller;
 990         case Small:
 991                 return hSmall;
 992         }
 993
 994         // what is wrong with gcc ?
 995
 996         return hNormal;
 997 }
 998
 999 void
1000 TimeAxisView::compute_controls_size_info ()
1001 {
1002         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1003         Gtk::Table two_row_table (2, 8);
1004         Gtk::Table one_row_table (1, 8);
1005         Button* buttons[5];
1006         const int border_width = 2;
1007         const int extra_height = (2 * border_width) + 2; // 2 pixels for the controls frame
1008
1009         window.add (one_row_table);
1010
1011         one_row_table.set_border_width (border_width);
1012         one_row_table.set_row_spacings (0);
1013         one_row_table.set_col_spacings (0);
1014         one_row_table.set_homogeneous (true);
1015
1016         two_row_table.set_border_width (border_width);
1017         two_row_table.set_row_spacings (0);
1018         two_row_table.set_col_spacings (0);
1019         two_row_table.set_homogeneous (true);
1020
1021         for (int i = 0; i < 5; ++i) {
1022                 buttons[i] = manage (new Button (X_("f")));
1023                 buttons[i]->set_name ("TrackMuteButton");
1024         }
1025
1026         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1027
1028         one_row_table.show_all ();
1029         Gtk::Requisition req(one_row_table.size_request ());
1030
1031
1032         // height required to show 1 row of buttons
1033
1034         hSmaller = req.height + extra_height;
1035
1036         window.remove ();
1037         window.add (two_row_table);
1038
1039         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1040         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1041         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1042         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1043
1044         two_row_table.show_all ();
1045         req = two_row_table.size_request ();
1046
1047         // height required to show all normal buttons
1048
1049         hNormal = req.height + extra_height;
1050
1051         // these heights are all just larger than normal. no more
1052         // elements are visible (yet).
1053
1054         hLarger = hNormal + 50;
1055         hLarge = hNormal + 150;
1056         hLargest = hNormal + 250;
1057
1058         // height required to show track name
1059
1060         hSmall = 27;
1061 }
1062
1063 void
1064 TimeAxisView::show_name_label ()
1065 {
1066         if (!(name_packing & NameLabelPacked)) {
1067                 name_hbox.pack_start (name_label, true, true);
1068                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1069                 name_hbox.show ();
1070                 name_label.show ();
1071         }
1072 }
1073
1074 void
1075 TimeAxisView::show_name_entry ()
1076 {
1077         if (!(name_packing & NameEntryPacked)) {
1078                 name_hbox.pack_start (name_entry, true, true);
1079                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1080                 name_hbox.show ();
1081                 name_entry.show ();
1082         }
1083 }
1084
1085 void
1086 TimeAxisView::hide_name_label ()
1087 {
1088         if (name_packing & NameLabelPacked) {
1089                 name_hbox.remove (name_label);
1090                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1091         }
1092 }
1093
1094 void
1095 TimeAxisView::hide_name_entry ()
1096 {
1097         if (name_packing & NameEntryPacked) {
1098                 name_hbox.remove (name_entry);
1099                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1100         }
1101 }
1102
1103 void
1104 TimeAxisView::color_handler ()
1105 {
1106         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1107                 (*i)->set_colors();
1108         }
1109
1110         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1111
1112                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1113                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1114
1115                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1116                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1117
1118                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1119                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1120         }
1121
1122         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1123
1124                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1125                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1126
1127                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1128                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1129
1130                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1131                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1132         }
1133 }
1134
1135 TimeAxisView*
1136 TimeAxisView::covers_y_position (double y)
1137 {
1138         if (hidden()) {
1139                 return 0;
1140         }
1141
1142         if (y_position <= y && y < (y_position + height)) {
1143                 return this;
1144         }
1145
1146         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1147                 TimeAxisView* tv;
1148
1149                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1150                         return tv;
1151                 }
1152         }
1153
1154         return 0;
1155 }
1156
1157 void
1158 TimeAxisView::show_temporary_lines (const AnalysisFeatureList& pos)
1159 {
1160         while (temp_lines.size()< pos.size()) {
1161                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1162                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1163                 l->property_y1() = 0;
1164                 l->property_y2() = height;
1165                 temp_lines.push_back (l);
1166         }
1167
1168         while (temp_lines.size() > pos.size()) {
1169                 ArdourCanvas::SimpleLine *line = temp_lines.back();
1170                 temp_lines.pop_back ();
1171                 delete line;
1172         }
1173
1174         AnalysisFeatureList::const_iterator i;
1175         list<ArdourCanvas::SimpleLine*>::iterator l;
1176
1177         for (i = pos.begin(), l = temp_lines.begin(); i != pos.end() && l != temp_lines.end(); ++i, ++l) {
1178                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1179                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1180         }
1181 }
1182
1183 void
1184 TimeAxisView::hide_temporary_lines ()
1185 {
1186         for (list<ArdourCanvas::SimpleLine*>::iterator l = temp_lines.begin(); l != temp_lines.end(); ++l) {
1187                 (*l)->hide ();
1188         }
1189 }