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