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 #include "streamview.h"
  54
  55 #include "i18n.h"
  56
  57 using namespace Gtk;
  58 using namespace Gdk;
  59 using namespace sigc;
  60 using namespace ARDOUR;
  61 using namespace PBD;
  62 using namespace Editing;
  63 using namespace ArdourCanvas;
  64
  65 const double trim_handle_size = 6.0; /* pixels */
  66
  67 uint32_t TimeAxisView::hLargest = 0;
  68 uint32_t TimeAxisView::hLarge = 0;
  69 uint32_t TimeAxisView::hLarger = 0;
  70 uint32_t TimeAxisView::hNormal = 0;
  71 uint32_t TimeAxisView::hSmaller = 0;
  72 uint32_t TimeAxisView::hSmall = 0;
  73 bool TimeAxisView::need_size_info = true;
  74 int const TimeAxisView::_max_order = 512;
  75
  76 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  77         : AxisView (sess),
  78           controls_table (2, 8),
  79           _y_position (0),
  80           _editor (ed),
  81           _order (0)
  82 {
  83         if (need_size_info) {
  84                 compute_controls_size_info ();
  85                 need_size_info = false;
  86         }
  87         _canvas_background = new Group (*ed.get_background_group (), 0.0, 0.0);
  88         _canvas_display = new Group (*ed.get_trackview_group (), 0.0, 0.0);
  89
  90         selection_group = new Group (*_canvas_display);
  91         selection_group->hide();
  92
  93         _ghost_group = new Group (*_canvas_display);
  94         _ghost_group->lower_to_bottom();
  95         _ghost_group->show();
  96
  97         control_parent = 0;
  98         display_menu = 0;
  99         size_menu = 0;
 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         _resize_drag_start = -1;
 109
 110         /*
 111           Create the standard LHS Controls
 112           We create the top-level container and name add the name label here,
 113           subclasses can add to the layout as required
 114         */
 115
 116         name_entry.set_name ("EditorTrackNameDisplay");
 117         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 118         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 119         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 120         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 121         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 122         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 123         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 124
 125         name_label.set_name ("TrackLabel");
 126         name_label.set_alignment (0.0, 0.5);
 127
 128         /* typically, either name_label OR name_entry are visible,
 129            but not both. its up to derived classes to show/hide them as they
 130            wish.
 131         */
 132
 133         name_hbox.show ();
 134
 135         controls_table.set_border_width (2);
 136         controls_table.set_row_spacings (0);
 137         controls_table.set_col_spacings (0);
 138         controls_table.set_homogeneous (true);
 139
 140         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 141         controls_table.show_all ();
 142         controls_table.set_no_show_all ();
 143
 144         resizer.set_size_request (10, 10);
 145         resizer.set_name ("ResizeHandle");
 146         resizer.signal_expose_event().connect (mem_fun (*this, &TimeAxisView::resizer_expose));
 147         resizer.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_press));
 148         resizer.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_release));
 149         resizer.signal_motion_notify_event().connect (mem_fun (*this, &TimeAxisView::resizer_motion));
 150         resizer.set_events (Gdk::BUTTON_PRESS_MASK|
 151                         Gdk::BUTTON_RELEASE_MASK|
 152                         Gdk::POINTER_MOTION_MASK|
 153                         Gdk::SCROLL_MASK);
 154
 155         resizer_box.pack_start (resizer, false, false);
 156         resizer.show ();
 157         resizer_box.show();
 158
 159         HSeparator* separator = manage (new HSeparator());
 160
 161         controls_vbox.pack_start (controls_table, false, false);
 162         controls_vbox.pack_end (*separator, false, false);
 163         controls_vbox.pack_end (resizer_box, false, true);
 164         controls_vbox.show ();
 165
 166         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 167         controls_ebox.add (controls_vbox);
 168         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 169         controls_ebox.set_flags (CAN_FOCUS);
 170
 171         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 172         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 173
 174         controls_hbox.pack_start (controls_ebox,true,true);
 175         controls_hbox.show ();
 176
 177         // controls_frame.add (controls_hbox);
 178         // controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 179         // controls_vbox.set_name ("TimeAxisViewControlsBaseUnselected");
 180         // controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 181
 182         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 183 }
 184
 185 TimeAxisView::~TimeAxisView()
 186 {
 187         in_destructor = true;
 188
 189         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 190                 delete *i;
 191         }
 192
 193         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 194                 delete (*i)->rect;
 195                 delete (*i)->start_trim;
 196                 delete (*i)->end_trim;
 197
 198         }
 199
 200         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 201                 delete (*i)->rect;
 202                 delete (*i)->start_trim;
 203                 delete (*i)->end_trim;
 204         }
 205
 206         for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 207                 delete (*i);
 208         }
 209
 210         delete selection_group;
 211         selection_group = 0;
 212
 213         delete _canvas_background;
 214         _canvas_background = 0;
 215
 216         delete _canvas_display;
 217         _canvas_display = 0;
 218
 219         delete display_menu;
 220         display_menu = 0;
 221 }
 222
 223 /** Display this TimeAxisView as the nth component of the parent box, at y.
 224 *
 225 * @param y y position.
 226 * @param nth index for this TimeAxisView, increased if this view has children.
 227 * @param parent parent component.
 228 * @return height of this TimeAxisView.
 229 */
 230 guint32
 231 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 232 {
 233         if (control_parent) {
 234                 control_parent->reorder_child (controls_hbox, nth);
 235         } else {
 236                 control_parent = parent;
 237                 parent->pack_start (controls_hbox, false, false);
 238                 parent->reorder_child (controls_hbox, nth);
 239         }
 240
 241         _order = nth;
 242
 243         if (_y_position != y) {
 244                 _canvas_display->property_y () = y;
 245                 _canvas_background->property_y () = y;
 246                 /* silly canvas */
 247                 _canvas_display->move (0.0, 0.0);
 248                 _canvas_background->move (0.0, 0.0);
 249                 _y_position = y;
 250
 251         }
 252
 253         _canvas_background->raise_to_top ();
 254         _canvas_display->raise_to_top ();
 255
 256         if (_marked_for_display) {
 257                 controls_hbox.show ();
 258                 controls_ebox.show ();
 259                 _canvas_background->show ();
 260         }
 261
 262         _hidden = false;
 263
 264         _effective_height = current_height ();
 265
 266         /* now show children */
 267
 268         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 269                 if (canvas_item_visible ((*i)->_canvas_display)) {
 270                         ++nth;
 271                         _effective_height += (*i)->show_at (y + _effective_height, nth, parent);
 272                 }
 273         }
 274
 275         return _effective_height;
 276 }
 277
 278 void
 279 TimeAxisView::clip_to_viewport ()
 280 {
 281         if (_marked_for_display) {
 282                 if (_y_position + _effective_height < _editor.get_trackview_group_vertical_offset () || _y_position > _editor.get_trackview_group_vertical_offset () + _canvas_display->get_canvas()->get_height()) {
 283                         _canvas_background->hide ();
 284                         _canvas_display->hide ();
 285                         return;
 286                 }
 287                 _canvas_background->show ();
 288                 _canvas_display->show ();
 289         }
 290         return;
 291 }
 292
 293 bool
 294 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 295 {
 296         switch (ev->direction) {
 297         case GDK_SCROLL_UP:
 298                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 299                         step_height (true);
 300                         return true;
 301                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 302                         _editor.scroll_tracks_up_line();
 303                         return true;
 304                 }
 305                 break;
 306
 307         case GDK_SCROLL_DOWN:
 308                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 309                         step_height (false);
 310                         return true;
 311                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 312                         _editor.scroll_tracks_down_line();
 313                         return true;
 314                 }
 315                 break;
 316
 317         default:
 318                 /* no handling for left/right, yet */
 319                 break;
 320         }
 321
 322         return false;
 323 }
 324
 325 bool
 326 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 327 {
 328         switch (ev->button) {
 329         case 1:
 330                 selection_click (ev);
 331                 break;
 332
 333         case 3:
 334                 popup_display_menu (ev->time);
 335                 break;
 336         }
 337
 338         return true;
 339 }
 340
 341 void
 342 TimeAxisView::selection_click (GdkEventButton* ev)
 343 {
 344         Selection::Operation op = Keyboard::selection_type (ev->state);
 345         _editor.set_selected_track (*this, op, false);
 346 }
 347
 348 void
 349 TimeAxisView::hide ()
 350 {
 351         if (_hidden) {
 352                 return;
 353         }
 354
 355         _canvas_display->hide ();
 356         _canvas_background->hide ();
 357         controls_frame.hide ();
 358
 359         if (control_parent) {
 360                 control_parent->remove (controls_hbox);
 361                 control_parent = 0;
 362         }
 363
 364         _y_position = -1;
 365         _hidden = true;
 366
 367         /* now hide children */
 368
 369         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 370                 (*i)->hide ();
 371         }
 372
 373         /* if its hidden, it cannot be selected */
 374
 375         _editor.get_selection().remove (this);
 376
 377         Hiding ();
 378 }
 379
 380 void
 381 TimeAxisView::step_height (bool bigger)
 382 {
 383         static const uint32_t step = 20;
 384
 385         if (bigger) {
 386                 set_height (height + step);
 387         } else {
 388                 if (height > step) {
 389                         set_height (std::max (height - step, hSmall));
 390                 } else if (height != hSmall) {
 391                         set_height (hSmall);
 392                 }
 393         }
 394 }
 395
 396 void
 397 TimeAxisView::set_heights (uint32_t h)
 398 {
 399         TrackSelection& ts (_editor.get_selection().tracks);
 400
 401         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 402                 (*i)->set_height (h);
 403         }
 404 }
 405
 406 void
 407 TimeAxisView::set_height(uint32_t h)
 408 {
 409         controls_ebox.property_height_request () = h;
 410         height = h;
 411
 412         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 413                 (*i)->set_height ();
 414         }
 415
 416         if (canvas_item_visible (selection_group)) {
 417                 /* resize the selection rect */
 418                 show_selection (_editor.get_selection().time);
 419         }
 420
 421         reshow_feature_lines ();
 422 }
 423
 424 bool
 425 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 426 {
 427         PublicEditor::TrackViewList *allviews = 0;
 428         PublicEditor::TrackViewList::iterator i;
 429
 430         switch (ev->keyval) {
 431         case GDK_Escape:
 432                 name_entry.select_region (0,0);
 433                 controls_ebox.grab_focus ();
 434                 name_entry_changed ();
 435                 return true;
 436
 437         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 438          * generates a different ev->keyval, rather than setting
 439          * ev->state.
 440          */
 441         case GDK_ISO_Left_Tab:
 442         case GDK_Tab:
 443                 name_entry_changed ();
 444                 allviews = _editor.get_valid_views (0);
 445                 if (allviews != 0) {
 446                         i = find (allviews->begin(), allviews->end(), this);
 447                         if (ev->keyval == GDK_Tab) {
 448                                 if (i != allviews->end()) {
 449                                         do {
 450                                                 if (++i == allviews->end()) { return true; }
 451                                         } while((*i)->hidden());
 452                                 }
 453                         } else {
 454                                 if (i != allviews->begin()) {
 455                                         do {
 456                                                 if (--i == allviews->begin()) { return true; }
 457                                         } while ((*i)->hidden());
 458                                 }
 459                         }
 460
 461
 462                         /* resize to show editable name display */
 463
 464                         if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 465                                 (*i)->set_height (hSmaller);
 466                         }
 467
 468                         (*i)->name_entry.grab_focus();
 469                 }
 470                 return true;
 471
 472         case GDK_Up:
 473         case GDK_Down:
 474                 name_entry_changed ();
 475                 return true;
 476
 477         default:
 478                 break;
 479         }
 480
 481 #ifdef TIMEOUT_NAME_EDIT
 482         /* adapt the timeout to reflect the user's typing speed */
 483
 484         guint32 name_entry_timeout;
 485
 486         if (last_name_entry_key_press_event) {
 487                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 488                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 489         } else {
 490                 /* start with a 1 second timeout */
 491                 name_entry_timeout = 1000;
 492         }
 493
 494         last_name_entry_key_press_event = ev->time;
 495
 496         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 497
 498         name_entry_key_timeout.disconnect();
 499         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 500 #endif
 501
 502         return false;
 503 }
 504
 505 bool
 506 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 507 {
 508         name_entry.select_region (0, -1);
 509         name_entry.set_name ("EditorActiveTrackNameDisplay");
 510         return false;
 511 }
 512
 513 bool
 514 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 515 {
 516         /* clean up */
 517
 518         last_name_entry_key_press_event = 0;
 519         name_entry_key_timeout.disconnect ();
 520         name_entry.set_name ("EditorTrackNameDisplay");
 521         name_entry.select_region (0,0);
 522
 523         /* do the real stuff */
 524
 525         name_entry_changed ();
 526
 527         return false;
 528 }
 529
 530 bool
 531 TimeAxisView::name_entry_key_timed_out ()
 532 {
 533         name_entry_activated();
 534         return false;
 535 }
 536
 537 void
 538 TimeAxisView::name_entry_activated ()
 539 {
 540         controls_ebox.grab_focus();
 541 }
 542
 543 void
 544 TimeAxisView::name_entry_changed ()
 545 {
 546 }
 547
 548 bool
 549 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 550 {
 551         if (ev->button == 3) {
 552                 return true;
 553         }
 554         return false;
 555 }
 556
 557 bool
 558 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 559 {
 560         if (ev->button == 3) {
 561                 popup_display_menu (ev->time);
 562                 return true;
 563         }
 564         return false;
 565 }
 566
 567 void
 568 TimeAxisView::conditionally_add_to_selection ()
 569 {
 570         Selection& s (_editor.get_selection ());
 571
 572         if (!s.selected (this)) {
 573                 _editor.set_selected_track (*this, Selection::Set);
 574         }
 575 }
 576
 577 void
 578 TimeAxisView::popup_display_menu (guint32 when)
 579 {
 580         if (display_menu == 0) {
 581                 build_display_menu ();
 582         }
 583
 584         conditionally_add_to_selection ();
 585         display_menu->popup (1, when);
 586 }
 587
 588 gint
 589 TimeAxisView::size_click (GdkEventButton *ev)
 590 {
 591         conditionally_add_to_selection ();
 592         popup_size_menu (ev->time);
 593         return TRUE;
 594 }
 595
 596 void
 597 TimeAxisView::popup_size_menu (guint32 when)
 598 {
 599         if (size_menu == 0) {
 600                 build_size_menu ();
 601         }
 602         size_menu->popup (1, when);
 603 }
 604
 605 void
 606 TimeAxisView::set_selected (bool yn)
 607 {
 608         if (yn == _selected) {
 609                 return;
 610         }
 611
 612         Selectable::set_selected (yn);
 613
 614         if (_selected) {
 615                 controls_ebox.set_name (controls_base_selected_name);
 616                 controls_hbox.set_name (controls_base_selected_name);
 617                 controls_vbox.set_name (controls_base_selected_name);
 618                 /* propagate any existing selection, if the mode is right */
 619
 620                 if (_editor.current_mouse_mode() == Editing::MouseRange && !_editor.get_selection().time.empty()) {
 621                         show_selection (_editor.get_selection().time);
 622                 }
 623
 624         } else {
 625                 controls_ebox.set_name (controls_base_unselected_name);
 626                 controls_hbox.set_name (controls_base_unselected_name);
 627                 controls_vbox.set_name (controls_base_unselected_name);
 628                 hide_selection ();
 629
 630                 /* children will be set for the yn=true case. but when deselecting
 631                    the editor only has a list of top-level trackviews, so we
 632                    have to do this here.
 633                 */
 634
 635                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 636                         (*i)->set_selected (false);
 637                 }
 638         }
 639
 640         resizer.queue_draw ();
 641 }
 642
 643 void
 644 TimeAxisView::build_size_menu ()
 645 {
 646         using namespace Menu_Helpers;
 647
 648         size_menu = new Menu;
 649         size_menu->set_name ("ArdourContextMenu");
 650         MenuList& items = size_menu->items();
 651
 652         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 653         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 654         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 655         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 656         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 657         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 658 }
 659
 660 void
 661 TimeAxisView::build_display_menu ()
 662 {
 663         using namespace Menu_Helpers;
 664
 665         display_menu = new Menu;
 666         display_menu->set_name ("ArdourContextMenu");
 667
 668         // Just let implementing classes define what goes into the manu
 669 }
 670
 671 void
 672 TimeAxisView::set_samples_per_unit (double spu)
 673 {
 674         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 675                 (*i)->set_samples_per_unit (spu);
 676         }
 677
 678         AnalysisFeatureList::const_iterator i;
 679         list<ArdourCanvas::SimpleLine*>::iterator l;
 680
 681         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 682                 (*l)->property_x1() = _editor.frame_to_pixel (*i);
 683                 (*l)->property_x2() = _editor.frame_to_pixel (*i);
 684         }
 685 }
 686
 687 void
 688 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 689 {
 690         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 691                 (*i)->show_timestretch (start, end);
 692         }
 693 }
 694
 695 void
 696 TimeAxisView::hide_timestretch ()
 697 {
 698         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 699                 (*i)->hide_timestretch ();
 700         }
 701 }
 702
 703 void
 704 TimeAxisView::show_selection (TimeSelection& ts)
 705 {
 706         double x1;
 707         double x2;
 708         double y2;
 709         SelectionRect *rect;
 710
 711         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 712                 (*i)->show_selection (ts);
 713         }
 714
 715         if (canvas_item_visible (selection_group)) {
 716                 while (!used_selection_rects.empty()) {
 717                         free_selection_rects.push_front (used_selection_rects.front());
 718                         used_selection_rects.pop_front();
 719                         free_selection_rects.front()->rect->hide();
 720                         free_selection_rects.front()->start_trim->hide();
 721                         free_selection_rects.front()->end_trim->hide();
 722                 }
 723                 selection_group->hide();
 724         }
 725
 726         selection_group->show();
 727         selection_group->raise_to_top();
 728
 729         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 730                 nframes_t start, end, cnt;
 731
 732                 start = (*i).start;
 733                 end = (*i).end;
 734                 cnt = end - start + 1;
 735
 736                 rect = get_selection_rect ((*i).id);
 737
 738                 x1 = _editor.frame_to_unit (start);
 739                 x2 = _editor.frame_to_unit (start + cnt - 1);
 740                 y2 = current_height();
 741
 742                 rect->rect->property_x1() = x1;
 743                 rect->rect->property_y1() = 1.0;
 744                 rect->rect->property_x2() = x2;
 745                 rect->rect->property_y2() = y2;
 746
 747                 // trim boxes are at the top for selections
 748
 749                 if (x2 > x1) {
 750                         rect->start_trim->property_x1() = x1;
 751                         rect->start_trim->property_y1() = 1.0;
 752                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 753                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 754
 755                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 756                         rect->end_trim->property_y1() = 1.0;
 757                         rect->end_trim->property_x2() = x2;
 758                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 759
 760                         rect->start_trim->show();
 761                         rect->end_trim->show();
 762                 } else {
 763                         rect->start_trim->hide();
 764                         rect->end_trim->hide();
 765                 }
 766
 767                 rect->rect->show ();
 768                 used_selection_rects.push_back (rect);
 769         }
 770 }
 771
 772 void
 773 TimeAxisView::reshow_selection (TimeSelection& ts)
 774 {
 775         show_selection (ts);
 776
 777         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 778                 (*i)->show_selection (ts);
 779         }
 780 }
 781
 782 void
 783 TimeAxisView::hide_selection ()
 784 {
 785         if (canvas_item_visible (selection_group)) {
 786                 while (!used_selection_rects.empty()) {
 787                         free_selection_rects.push_front (used_selection_rects.front());
 788                         used_selection_rects.pop_front();
 789                         free_selection_rects.front()->rect->hide();
 790                         free_selection_rects.front()->start_trim->hide();
 791                         free_selection_rects.front()->end_trim->hide();
 792                 }
 793                 selection_group->hide();
 794         }
 795
 796         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 797                 (*i)->hide_selection ();
 798         }
 799 }
 800
 801 void
 802 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 803 {
 804         /* find the selection rect this is for. we have the item corresponding to one
 805            of the trim handles.
 806          */
 807
 808         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 809                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 810
 811                         /* make one trim handle be "above" the other so that if they overlap,
 812                            the top one is the one last used.
 813                         */
 814
 815                         (*i)->rect->raise_to_top ();
 816                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 817                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 818
 819                         break;
 820                 }
 821         }
 822 }
 823
 824 SelectionRect *
 825 TimeAxisView::get_selection_rect (uint32_t id)
 826 {
 827         SelectionRect *rect;
 828
 829         /* check to see if we already have a visible rect for this particular selection ID */
 830
 831         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 832                 if ((*i)->id == id) {
 833                         return (*i);
 834                 }
 835         }
 836
 837         /* ditto for the free rect list */
 838
 839         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 840                 if ((*i)->id == id) {
 841                         SelectionRect* ret = (*i);
 842                         free_selection_rects.erase (i);
 843                         return ret;
 844                 }
 845         }
 846
 847         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 848
 849         if (free_selection_rects.empty()) {
 850
 851                 rect = new SelectionRect;
 852
 853                 rect->rect = new SimpleRect (*selection_group);
 854                 rect->rect->property_x1() = 0.0;
 855                 rect->rect->property_y1() = 0.0;
 856                 rect->rect->property_x2() = 0.0;
 857                 rect->rect->property_y2() = 0.0;
 858                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 859                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 860
 861                 rect->start_trim = new SimpleRect (*selection_group);
 862                 rect->start_trim->property_x1() = 0.0;
 863                 rect->start_trim->property_x2() = 0.0;
 864                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 865                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 866
 867                 rect->end_trim = new SimpleRect (*selection_group);
 868                 rect->end_trim->property_x1() = 0.0;
 869                 rect->end_trim->property_x2() = 0.0;
 870                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 871                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 872
 873                 free_selection_rects.push_front (rect);
 874
 875                 rect->rect->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 876                 rect->start_trim->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 877                 rect->end_trim->signal_event().connect (bind (mem_fun (_editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 878         }
 879
 880         rect = free_selection_rects.front();
 881         rect->id = id;
 882         free_selection_rects.pop_front();
 883         return rect;
 884 }
 885
 886 struct null_deleter { void operator()(void const *) const {} };
 887
 888 bool
 889 TimeAxisView::is_child (TimeAxisView* tav)
 890 {
 891         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 892 }
 893
 894 void
 895 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 896 {
 897         children.push_back (child);
 898 }
 899
 900 void
 901 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 902 {
 903         Children::iterator i;
 904
 905         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 906                 children.erase (i);
 907         }
 908 }
 909
 910 void
 911 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 912 {
 913         return;
 914 }
 915
 916 void
 917 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 918 {
 919         return;
 920 }
 921
 922 void
 923 TimeAxisView::add_ghost (RegionView* rv)
 924 {
 925         GhostRegion* gr = rv->add_ghost (*this);
 926
 927         if(gr) {
 928                 ghosts.push_back(gr);
 929                 gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 930         }
 931 }
 932
 933 void
 934 TimeAxisView::remove_ghost (RegionView* rv) {
 935         rv->remove_ghost_in (*this);
 936 }
 937
 938 void
 939 TimeAxisView::erase_ghost (GhostRegion* gr) {
 940         if(in_destructor) {
 941                 return;
 942         }
 943
 944         list<GhostRegion*>::iterator i;
 945
 946         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 947                 if ((*i) == gr) {
 948                         ghosts.erase (i);
 949                         break;
 950                 }
 951         }
 952 }
 953
 954 bool
 955 TimeAxisView::touched (double top, double bot)
 956 {
 957         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 958           y_position is the "origin" or "top" of the track.
 959         */
 960
 961         double mybot = _y_position + current_height();
 962
 963         return ((_y_position <= bot && _y_position >= top) ||
 964                 ((mybot <= bot) && (top < mybot)) ||
 965                 (mybot >= bot && _y_position < top));
 966 }
 967
 968 void
 969 TimeAxisView::set_parent (TimeAxisView& p)
 970 {
 971         parent = &p;
 972 }
 973
 974 bool
 975 TimeAxisView::has_state () const
 976 {
 977         return _has_state;
 978 }
 979
 980 TimeAxisView*
 981 TimeAxisView::get_parent_with_state ()
 982 {
 983         if (parent == 0) {
 984                 return 0;
 985         }
 986
 987         if (parent->has_state()) {
 988                 return parent;
 989         }
 990
 991         return parent->get_parent_with_state ();
 992 }
 993
 994
 995 XMLNode&
 996 TimeAxisView::get_state ()
 997 {
 998         XMLNode* node = new XMLNode ("TAV-" + name());
 999         char buf[32];
1000
1001         snprintf (buf, sizeof(buf), "%u", height);
1002         node->add_property ("height", buf);
1003         node->add_property ("marked-for-display", (_marked_for_display ? "1" : "0"));
1004         return *node;
1005 }
1006
1007 int
1008 TimeAxisView::set_state (const XMLNode& node)
1009 {
1010         const XMLProperty *prop;
1011
1012         if ((prop = node.property ("marked-for-display")) != 0) {
1013                 _marked_for_display = (prop->value() == "1");
1014         }
1015
1016         if ((prop = node.property ("track-height")) != 0) {
1017
1018                 if (prop->value() == "largest") {
1019                         set_height (hLargest);
1020                 } else if (prop->value() == "large") {
1021                         set_height (hLarge);
1022                 } else if (prop->value() == "larger") {
1023                         set_height (hLarger);
1024                 } else if (prop->value() == "normal") {
1025                         set_height (hNormal);
1026                 } else if (prop->value() == "smaller") {
1027                         set_height (hSmaller);
1028                 } else if (prop->value() == "small") {
1029                         set_height (hSmall);
1030                 } else {
1031                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
1032                         set_height (Normal);
1033                 }
1034
1035         } else if ((prop = node.property ("height")) != 0) {
1036
1037                 set_height (atoi (prop->value()));
1038
1039         } else {
1040
1041                 set_height (hNormal);
1042         }
1043
1044         return 0;
1045 }
1046
1047 void
1048 TimeAxisView::reset_height()
1049 {
1050         set_height (height);
1051
1052         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1053                 (*i)->set_height ((*i)->height);
1054         }
1055 }
1056
1057 void
1058 TimeAxisView::compute_controls_size_info ()
1059 {
1060         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1061         Gtk::Table two_row_table (2, 8);
1062         Gtk::Table one_row_table (1, 8);
1063         Button* buttons[5];
1064         const int border_width = 2;
1065         const int extra_height = (2 * border_width)
1066                 //+ 2   // 2 pixels for the hseparator between TimeAxisView control areas
1067                 + 10; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
1068
1069         window.add (one_row_table);
1070
1071         one_row_table.set_border_width (border_width);
1072         one_row_table.set_row_spacings (0);
1073         one_row_table.set_col_spacings (0);
1074         one_row_table.set_homogeneous (true);
1075
1076         two_row_table.set_border_width (border_width);
1077         two_row_table.set_row_spacings (0);
1078         two_row_table.set_col_spacings (0);
1079         two_row_table.set_homogeneous (true);
1080
1081         for (int i = 0; i < 5; ++i) {
1082                 buttons[i] = manage (new Button (X_("f")));
1083                 buttons[i]->set_name ("TrackMuteButton");
1084         }
1085
1086         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1087
1088         one_row_table.show_all ();
1089         Gtk::Requisition req(one_row_table.size_request ());
1090
1091
1092         // height required to show 1 row of buttons
1093
1094         hSmaller = req.height + extra_height;
1095
1096         window.remove ();
1097         window.add (two_row_table);
1098
1099         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1100         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1101         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1102         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1103
1104         two_row_table.show_all ();
1105         req = two_row_table.size_request ();
1106
1107         cerr << "Normal height is " << req.height << " + " << extra_height << endl;
1108
1109         // height required to show all normal buttons
1110
1111         hNormal = /*req.height*/ 48 + extra_height;
1112
1113         // these heights are all just larger than normal. no more
1114         // elements are visible (yet).
1115
1116         hLarger = hNormal + 50;
1117         hLarge = hNormal + 150;
1118         hLargest = hNormal + 250;
1119
1120         // height required to show track name
1121
1122         hSmall = 27;
1123 }
1124
1125 void
1126 TimeAxisView::show_name_label ()
1127 {
1128         if (!(name_packing & NameLabelPacked)) {
1129                 name_hbox.pack_start (name_label, true, true);
1130                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1131                 name_hbox.show ();
1132                 name_label.show ();
1133         }
1134 }
1135
1136 void
1137 TimeAxisView::show_name_entry ()
1138 {
1139         if (!(name_packing & NameEntryPacked)) {
1140                 name_hbox.pack_start (name_entry, true, true);
1141                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1142                 name_hbox.show ();
1143                 name_entry.show ();
1144         }
1145 }
1146
1147 void
1148 TimeAxisView::hide_name_label ()
1149 {
1150         if (name_packing & NameLabelPacked) {
1151                 name_hbox.remove (name_label);
1152                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1153         }
1154 }
1155
1156 void
1157 TimeAxisView::hide_name_entry ()
1158 {
1159         if (name_packing & NameEntryPacked) {
1160                 name_hbox.remove (name_entry);
1161                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1162         }
1163 }
1164
1165 void
1166 TimeAxisView::color_handler ()
1167 {
1168         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1169                 (*i)->set_colors();
1170         }
1171
1172         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1173
1174                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1175                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1176
1177                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1178                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1179
1180                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1181                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1182         }
1183
1184         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1185
1186                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1187                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1188
1189                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1190                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1191
1192                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1193                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1194         }
1195 }
1196
1197 /** @return Pair: TimeAxisView, layer index.
1198  * TimeAxisView is non-0 if this object covers y, or one of its children does.
1199  * If the covering object is a child axis, then the child is returned.
1200  * TimeAxisView is 0 otherwise.
1201  * Layer index is the layer number if the TimeAxisView is valid and is in stacked
1202  * region display mode, otherwise 0.
1203  */
1204 std::pair<TimeAxisView*, layer_t>
1205 TimeAxisView::covers_y_position (double y)
1206 {
1207         if (hidden()) {
1208                 return std::make_pair ( (TimeAxisView *) 0, 0);
1209         }
1210
1211         if (_y_position <= y && y < (_y_position + height)) {
1212
1213                 /* work out the layer index if appropriate */
1214                 layer_t l = 0;
1215                 if (layer_display () == Stacked && view ()) {
1216                         /* compute layer */
1217                         l = layer_t ((_y_position + height - y) / (view()->child_height ()));
1218                         /* clamp to max layers to be on the safe side; sometimes the above calculation
1219                           returns a too-high value */
1220                         if (l >= view()->layers ()) {
1221                                 l = view()->layers() - 1;
1222                         }
1223                 }
1224
1225                 return std::make_pair (this, l);
1226         }
1227
1228         for (Children::const_iterator i = children.begin(); i != children.end(); ++i) {
1229
1230                 std::pair<TimeAxisView*, int> const r = (*i)->covers_y_position (y);
1231                 if (r.first) {
1232                         return r;
1233                 }
1234         }
1235
1236         return std::make_pair ( (TimeAxisView *) 0, 0);
1237 }
1238
1239 void
1240 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1241 {
1242         analysis_features = pos;
1243         reshow_feature_lines ();
1244 }
1245
1246
1247 void
1248 TimeAxisView::hide_feature_lines ()
1249 {
1250         list<ArdourCanvas::SimpleLine*>::iterator l;
1251
1252         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1253                 (*l)->hide();
1254         }
1255 }
1256
1257 void
1258 TimeAxisView::reshow_feature_lines ()
1259 {
1260         while (feature_lines.size()< analysis_features.size()) {
1261                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*_canvas_display);
1262                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1263                 feature_lines.push_back (l);
1264         }
1265
1266         while (feature_lines.size() > analysis_features.size()) {
1267                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1268                 feature_lines.pop_back ();
1269                 delete line;
1270         }
1271
1272         AnalysisFeatureList::const_iterator i;
1273         list<ArdourCanvas::SimpleLine*>::iterator l;
1274
1275         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1276                 (*l)->property_x1() = _editor.frame_to_pixel (*i);
1277                 (*l)->property_x2() = _editor.frame_to_pixel (*i);
1278                 (*l)->property_y1() = 0;
1279                 (*l)->property_y2() = current_height();
1280                 (*l)->show ();
1281         }
1282 }
1283
1284 bool
1285 TimeAxisView::resizer_button_press (GdkEventButton* event)
1286 {
1287         _resize_drag_start = event->y_root;
1288         _resize_idle_target = current_height ();
1289         _editor.start_resize_line_ops ();
1290         return true;
1291 }
1292
1293 bool
1294 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1295 {
1296         _resize_drag_start = -1;
1297         _editor.end_resize_line_ops ();
1298         return true;
1299 }
1300
1301 void
1302 TimeAxisView::idle_resize (uint32_t h)
1303 {
1304         set_height (h);
1305 }
1306
1307 bool
1308 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1309 {
1310         if (_resize_drag_start < 0) {
1311                 return true;
1312         }
1313
1314         int32_t const delta = (int32_t) floor (_resize_drag_start - ev->y_root);
1315
1316         _resize_idle_target = std::max (_resize_idle_target - delta, (int) hSmall);
1317         _editor.add_to_idle_resize (this, _resize_idle_target);
1318
1319         _resize_drag_start = ev->y_root;
1320
1321         return true;
1322 }
1323
1324 bool
1325 TimeAxisView::resizer_expose (GdkEventExpose* event)
1326 {
1327         int w, h, x, y, d;
1328         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1329         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1330         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1331
1332         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1333                         true,
1334                         event->area.x,
1335                         event->area.y,
1336                         event->area.width,
1337                         event->area.height);
1338
1339         win->get_geometry (x, y, w, h, d);
1340
1341         /* handle/line #1 */
1342
1343         win->draw_line (dark, 0, 0, w - 2, 0);
1344         win->draw_point (dark, 0, 1);
1345         win->draw_line (light, 1, 1, w - 1, 1);
1346         win->draw_point (light, w - 1, 0);
1347
1348         /* handle/line #2 */
1349
1350         win->draw_line (dark, 0, 4, w - 2, 4);
1351         win->draw_point (dark, 0, 5);
1352         win->draw_line (light, 1, 5, w - 1, 5);
1353         win->draw_point (light, w - 1, 4);
1354
1355         /* handle/line #3 */
1356
1357         win->draw_line (dark, 0, 8, w - 2, 8);
1358         win->draw_point (dark, 0, 9);
1359         win->draw_line (light, 1, 9, w - 1, 9);
1360         win->draw_point (light, w - 1, 8);
1361
1362         return true;
1363 }
1364