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