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