gtk2_ardour/time_axis_view.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdlib>
  21 #include <cmath>
  22 #include <algorithm>
  23 #include <string>
  24 #include <list>
  25
  26 #include <libgnomecanvasmm.h>
  27 #include <libgnomecanvasmm/canvas.h>
  28 #include <libgnomecanvasmm/item.h>
  29
  30 #include <pbd/error.h>
  31
  32 #include <gtkmm2ext/utils.h>
  33 #include <gtkmm2ext/selector.h>
  34 #include <gtkmm2ext/stop_signal.h>
  35
  36 #include <ardour/session.h>
  37 #include <ardour/utils.h>
  38 #include <ardour/ladspa_plugin.h>
  39 #include <ardour/processor.h>
  40 #include <ardour/location.h>
  41
  42 #include "ardour_ui.h"
  43 #include "public_editor.h"
  44 #include "time_axis_view.h"
  45 #include "region_view.h"
  46 #include "ghostregion.h"
  47 #include "simplerect.h"
  48 #include "simpleline.h"
  49 #include "selection.h"
  50 #include "keyboard.h"
  51 #include "rgb_macros.h"
  52 #include "utils.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace Gtk;
  57 using namespace Gdk;
  58 using namespace sigc;
  59 using namespace ARDOUR;
  60 using namespace PBD;
  61 using namespace Editing;
  62 using namespace ArdourCanvas;
  63
  64 const double trim_handle_size = 6.0; /* pixels */
  65
  66 uint32_t TimeAxisView::hLargest = 0;
  67 uint32_t TimeAxisView::hLarge = 0;
  68 uint32_t TimeAxisView::hLarger = 0;
  69 uint32_t TimeAxisView::hNormal = 0;
  70 uint32_t TimeAxisView::hSmaller = 0;
  71 uint32_t TimeAxisView::hSmall = 0;
  72 bool TimeAxisView::need_size_info = true;
  73
  74 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  75         : AxisView (sess),
  76           editor (ed),
  77           y_position(0),
  78           order(0),
  79           controls_table (2, 8)
  80 {
  81         if (need_size_info) {
  82                 compute_controls_size_info ();
  83                 need_size_info = false;
  84         }
  85
  86         canvas_display = new Group (*canvas.root(), 0.0, 0.0);
  87
  88         ghost_group = new Group (*canvas_display);
  89         ghost_group->lower_to_bottom();
  90         ghost_group->show();
  91
  92         selection_group = new Group (*canvas_display);
  93         selection_group->hide();
  94
  95         control_parent = 0;
  96         display_menu = 0;
  97         size_menu = 0;
  98         _marked_for_display = false;
  99         _hidden = false;
 100         in_destructor = false;
 101         height = 0;
 102         effective_height = 0;
 103         parent = rent;
 104         _has_state = false;
 105         last_name_entry_key_press_event = 0;
 106         name_packing = NamePackingBits (0);
 107         resize_drag_start = -1;
 108
 109         /*
 110           Create the standard LHS Controls
 111           We create the top-level container and name add the name label here,
 112           subclasses can add to the layout as required
 113         */
 114
 115         name_entry.set_name ("EditorTrackNameDisplay");
 116         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 117         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 118         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 119         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 120         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 121         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 122         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 123
 124         name_label.set_name ("TrackLabel");
 125         name_label.set_alignment (0.0, 0.5);
 126
 127         /* typically, either name_label OR name_entry are visible,
 128            but not both. its up to derived classes to show/hide them as they
 129            wish.
 130         */
 131
 132         name_hbox.show ();
 133
 134         controls_table.set_border_width (2);
 135         controls_table.set_row_spacings (0);
 136         controls_table.set_col_spacings (0);
 137         controls_table.set_homogeneous (true);
 138
 139         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 140         controls_table.show_all ();
 141         controls_table.set_no_show_all ();
 142
 143         resizer.set_size_request (10, 10);
 144         resizer.set_name ("ResizeHandle");
 145         resizer.signal_expose_event().connect (mem_fun (*this, &TimeAxisView::resizer_expose));
 146         resizer.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_press));
 147         resizer.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_release));
 148         resizer.signal_motion_notify_event().connect (mem_fun (*this, &TimeAxisView::resizer_motion));
 149         resizer.set_events (Gdk::BUTTON_PRESS_MASK|
 150                             Gdk::BUTTON_RELEASE_MASK|
 151                             Gdk::POINTER_MOTION_MASK|
 152                             Gdk::SCROLL_MASK);
 153
 154         resizer_box.pack_start (resizer, false, false);
 155         resizer.show ();
 156         resizer_box.show();
 157
 158         controls_vbox.pack_start (controls_table, false, false);
 159         controls_vbox.pack_end (resizer_box, false, true);
 160         controls_vbox.show ();
 161
 162         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 163         controls_ebox.add (controls_vbox);
 164         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 165         controls_ebox.set_flags (CAN_FOCUS);
 166
 167         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 168         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 169
 170         controls_hbox.pack_start (controls_ebox,true,true);
 171         controls_hbox.show ();
 172
 173         //controls_frame.add (controls_hbox);
 174         //controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 175         //controls_vbox.set_name ("TimeAxisViewControlsBaseUnselected");
 176         //controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 177
 178         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 179 }
 180
 181 TimeAxisView::~TimeAxisView()
 182 {
 183         in_destructor = true;
 184
 185         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 186                 delete *i;
 187         }
 188
 189         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 190                 delete (*i)->rect;
 191                 delete (*i)->start_trim;
 192                 delete (*i)->end_trim;
 193
 194         }
 195
 196         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 197                 delete (*i)->rect;
 198                 delete (*i)->start_trim;
 199                 delete (*i)->end_trim;
 200         }
 201
 202         for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 203                 delete (*i);
 204         }
 205
 206         if (selection_group) {
 207                 delete selection_group;
 208                 selection_group = 0;
 209         }
 210
 211         if (canvas_display) {
 212                 delete canvas_display;
 213                 canvas_display = 0;
 214         }
 215
 216         if (display_menu) {
 217                 delete display_menu;
 218                 display_menu = 0;
 219         }
 220 }
 221
 222 guint32
 223 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 224 {
 225         gdouble ix1, ix2, iy1, iy2;
 226         effective_height = 0;
 227
 228         if (control_parent) {
 229                 control_parent->reorder_child (controls_hbox, nth);
 230         } else {
 231                 control_parent = parent;
 232                 parent->pack_start (controls_hbox, false, false);
 233                 parent->reorder_child (controls_hbox, nth);
 234         }
 235         controls_hbox.show ();
 236         controls_ebox.show ();
 237
 238         /* the coordinates used here are in the system of the
 239            item's parent ...
 240         */
 241
 242         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 243         Group* pg = canvas_display->property_parent();
 244         pg->i2w (ix1, iy1);
 245
 246         if (iy1 < 0) {
 247                 iy1 = 0;
 248         }
 249
 250         canvas_display->move (0.0, y - iy1);
 251         canvas_display->show();/* XXX not necessary */
 252         y_position = y;
 253         order = nth;
 254         _hidden = false;
 255
 256         /* height in pixels depends on _order, so update it now we've changed _order */
 257         set_height (height);
 258
 259         effective_height = current_height();
 260
 261         /* now show children */
 262
 263         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 264
 265                 if ((*i)->marked_for_display()) {
 266                         (*i)->canvas_display->show();
 267                 }
 268
 269                 if (canvas_item_visible ((*i)->canvas_display)) {
 270                         ++nth;
 271                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 272                 }
 273         }
 274
 275         return effective_height;
 276 }
 277
 278 bool
 279 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 280 {
 281         switch (ev->direction) {
 282         case GDK_SCROLL_UP:
 283                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 284                         step_height (true);
 285                         return true;
 286                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 287                         editor.scroll_tracks_up_line();
 288                         return true;
 289                 }
 290                 break;
 291
 292         case GDK_SCROLL_DOWN:
 293                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 294                         step_height (false);
 295                         return true;
 296                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 297                         editor.scroll_tracks_down_line();
 298                         return true;
 299                 }
 300                 break;
 301
 302         default:
 303                 /* no handling for left/right, yet */
 304                 break;
 305         }
 306
 307         return false;
 308 }
 309
 310 bool
 311 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 312 {
 313         switch (ev->button) {
 314         case 1:
 315                 selection_click (ev);
 316                 break;
 317
 318         case 3:
 319                 popup_display_menu (ev->time);
 320                 break;
 321         }
 322
 323         return true;
 324 }
 325
 326 void
 327 TimeAxisView::selection_click (GdkEventButton* ev)
 328 {
 329         Selection::Operation op = Keyboard::selection_type (ev->state);
 330         editor.set_selected_track (*this, op, false);
 331 }
 332
 333 void
 334 TimeAxisView::hide ()
 335 {
 336         if (_hidden) {
 337                 return;
 338         }
 339
 340         canvas_display->hide();
 341         controls_hbox.hide ();
 342
 343         if (control_parent) {
 344                 control_parent->remove (controls_hbox);
 345                 control_parent = 0;
 346         }
 347
 348         y_position = -1;
 349         _hidden = true;
 350
 351         /* now hide children */
 352
 353         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 354                 (*i)->hide ();
 355         }
 356
 357         Hiding ();
 358 }
 359
 360 void
 361 TimeAxisView::step_height (bool bigger)
 362 {
 363         static const uint32_t step = 20;
 364
 365         if (bigger) {
 366                 set_height (height + step);
 367         } else {
 368                 if (height > step) {
 369                         set_height (std::max (height - step, hSmall));
 370                 } else if (height != hSmall) {
 371                         set_height (hSmall);
 372                 }
 373         }
 374 }
 375
 376 void
 377 TimeAxisView::set_heights (uint32_t h)
 378 {
 379         TrackSelection& ts (editor.get_selection().tracks);
 380
 381         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 382                 (*i)->set_height (h);
 383         }
 384 }
 385
 386 void
 387 TimeAxisView::set_height(uint32_t h)
 388 {
 389         height = h;
 390
 391         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 392                 (*i)->set_height ();
 393         }
 394
 395         if (canvas_item_visible (selection_group)) {
 396                 /* resize the selection rect */
 397                 show_selection (editor.get_selection().time);
 398         }
 399
 400         reshow_feature_lines ();
 401 }
 402
 403 bool
 404 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 405 {
 406         PublicEditor::TrackViewList *allviews = 0;
 407         PublicEditor::TrackViewList::iterator i;
 408
 409         switch (ev->keyval) {
 410         case GDK_Escape:
 411                 name_entry.select_region (0,0);
 412                 controls_ebox.grab_focus ();
 413                 name_entry_changed ();
 414                 return true;
 415
 416         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 417          * generates a different ev->keyval, rather than setting
 418          * ev->state.
 419          */
 420         case GDK_ISO_Left_Tab:
 421         case GDK_Tab:
 422                 name_entry_changed ();
 423                 allviews = editor.get_valid_views (0);
 424                 if (allviews != 0) {
 425                         i = find (allviews->begin(), allviews->end(), this);
 426                         if (ev->keyval == GDK_Tab) {
 427                                 if (i != allviews->end()) {
 428                                         do {
 429                                                 if (++i == allviews->end()) { return true; }
 430                                         } while((*i)->hidden());
 431                                 }
 432                         } else {
 433                                 if (i != allviews->begin()) {
 434                                         do {
 435                                                 if (--i == allviews->begin()) { return true; }
 436                                         } while ((*i)->hidden());
 437                                 }
 438                         }
 439
 440
 441                         /* resize to show editable name display */
 442
 443                         if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 444                                 (*i)->set_height (hSmaller);
 445                         }
 446
 447                         (*i)->name_entry.grab_focus();
 448                 }
 449                 return true;
 450
 451         case GDK_Up:
 452         case GDK_Down:
 453                 name_entry_changed ();
 454                 return true;
 455
 456         default:
 457                 break;
 458         }
 459
 460 #ifdef TIMEOUT_NAME_EDIT
 461         /* adapt the timeout to reflect the user's typing speed */
 462
 463         guint32 name_entry_timeout;
 464
 465         if (last_name_entry_key_press_event) {
 466                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 467                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 468         } else {
 469                 /* start with a 1 second timeout */
 470                 name_entry_timeout = 1000;
 471         }
 472
 473         last_name_entry_key_press_event = ev->time;
 474
 475         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 476
 477         name_entry_key_timeout.disconnect();
 478         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 479 #endif
 480
 481         return false;
 482 }
 483
 484 bool
 485 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 486 {
 487         name_entry.select_region (0, -1);
 488         name_entry.set_name ("EditorActiveTrackNameDisplay");
 489         return false;
 490 }
 491
 492 bool
 493 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 494 {
 495         /* clean up */
 496
 497         last_name_entry_key_press_event = 0;
 498         name_entry_key_timeout.disconnect ();
 499         name_entry.set_name ("EditorTrackNameDisplay");
 500         name_entry.select_region (0,0);
 501
 502         /* do the real stuff */
 503
 504         name_entry_changed ();
 505
 506         return false;
 507 }
 508
 509 bool
 510 TimeAxisView::name_entry_key_timed_out ()
 511 {
 512         name_entry_activated();
 513         return false;
 514 }
 515
 516 void
 517 TimeAxisView::name_entry_activated ()
 518 {
 519         controls_ebox.grab_focus();
 520 }
 521
 522 void
 523 TimeAxisView::name_entry_changed ()
 524 {
 525 }
 526
 527 bool
 528 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 529 {
 530         if (ev->button == 3) {
 531                 return true;
 532         }
 533         return false;
 534 }
 535
 536 bool
 537 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 538 {
 539         if (ev->button == 3) {
 540                 popup_display_menu (ev->time);
 541                 return true;
 542         }
 543         return false;
 544 }
 545
 546 void
 547 TimeAxisView::conditionally_add_to_selection ()
 548 {
 549         Selection& s (editor.get_selection());
 550
 551         if (!s.selected (this)) {
 552                 editor.set_selected_track (*this, Selection::Set);
 553         }
 554 }
 555
 556
 557 void
 558 TimeAxisView::popup_display_menu (guint32 when)
 559 {
 560         if (display_menu == 0) {
 561                 build_display_menu ();
 562         }
 563
 564         conditionally_add_to_selection ();
 565         display_menu->popup (1, when);
 566 }
 567
 568 gint
 569 TimeAxisView::size_click (GdkEventButton *ev)
 570 {
 571         conditionally_add_to_selection ();
 572         popup_size_menu (ev->time);
 573         return TRUE;
 574 }
 575
 576 void
 577 TimeAxisView::popup_size_menu (guint32 when)
 578 {
 579         if (size_menu == 0) {
 580                 build_size_menu ();
 581         }
 582         size_menu->popup (1, when);
 583 }
 584
 585 void
 586 TimeAxisView::set_selected (bool yn)
 587 {
 588         if (yn == _selected) {
 589                 return;
 590         }
 591
 592         Selectable::set_selected (yn);
 593
 594         if (_selected) {
 595                 controls_ebox.set_name (controls_base_selected_name);
 596                 controls_hbox.set_name (controls_base_selected_name);
 597                 controls_vbox.set_name (controls_base_selected_name);
 598                 /* propagate any existing selection, if the mode is right */
 599
 600                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 601                         show_selection (editor.get_selection().time);
 602                 }
 603
 604         } else {
 605                 controls_ebox.set_name (controls_base_unselected_name);
 606                 controls_hbox.set_name (controls_base_unselected_name);
 607                 controls_vbox.set_name (controls_base_unselected_name);
 608                 hide_selection ();
 609
 610                 /* children will be set for the yn=true case. but when deselecting
 611                    the editor only has a list of top-level trackviews, so we
 612                    have to do this here.
 613                 */
 614
 615                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 616                         (*i)->set_selected (false);
 617                 }
 618         }
 619
 620         resizer.queue_draw ();
 621 }
 622
 623 void
 624 TimeAxisView::build_size_menu ()
 625 {
 626         using namespace Menu_Helpers;
 627
 628         size_menu = new Menu;
 629         size_menu->set_name ("ArdourContextMenu");
 630         MenuList& items = size_menu->items();
 631
 632         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 633         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 634         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 635         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 636         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 637         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 638 }
 639
 640 void
 641 TimeAxisView::build_display_menu ()
 642 {
 643         using namespace Menu_Helpers;
 644
 645         display_menu = new Menu;
 646         display_menu->set_name ("ArdourContextMenu");
 647
 648         // Just let implementing classes define what goes into the manu
 649 }
 650
 651 void
 652 TimeAxisView::set_samples_per_unit (double spu)
 653 {
 654         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 655                 (*i)->set_samples_per_unit (spu);
 656         }
 657
 658         AnalysisFeatureList::const_iterator i;
 659         list<ArdourCanvas::SimpleLine*>::iterator l;
 660
 661         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 662                 (*l)->property_x1() = editor.frame_to_pixel (*i);
 663                 (*l)->property_x2() = editor.frame_to_pixel (*i);
 664         }
 665 }
 666
 667 void
 668 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 669 {
 670         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 671                 (*i)->show_timestretch (start, end);
 672         }
 673 }
 674
 675 void
 676 TimeAxisView::hide_timestretch ()
 677 {
 678         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 679                 (*i)->hide_timestretch ();
 680         }
 681 }
 682
 683 void
 684 TimeAxisView::show_selection (TimeSelection& ts)
 685 {
 686         double x1;
 687         double x2;
 688         double y2;
 689         SelectionRect *rect;
 690
 691         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 692                 (*i)->show_selection (ts);
 693         }
 694
 695         if (canvas_item_visible (selection_group)) {
 696                 while (!used_selection_rects.empty()) {
 697                         free_selection_rects.push_front (used_selection_rects.front());
 698                         used_selection_rects.pop_front();
 699                         free_selection_rects.front()->rect->hide();
 700                         free_selection_rects.front()->start_trim->hide();
 701                         free_selection_rects.front()->end_trim->hide();
 702                 }
 703                 selection_group->hide();
 704         }
 705
 706         selection_group->show();
 707         selection_group->raise_to_top();
 708
 709         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 710                 nframes_t start, end, cnt;
 711
 712                 start = (*i).start;
 713                 end = (*i).end;
 714                 cnt = end - start + 1;
 715
 716                 rect = get_selection_rect ((*i).id);
 717
 718                 x1 = editor.frame_to_unit (start);
 719                 x2 = editor.frame_to_unit (start + cnt - 1);
 720                 y2 = current_height();
 721
 722                 rect->rect->property_x1() = x1;
 723                 rect->rect->property_y1() = 1.0;
 724                 rect->rect->property_x2() = x2;
 725                 rect->rect->property_y2() = y2;
 726
 727                 // trim boxes are at the top for selections
 728
 729                 if (x2 > x1) {
 730                         rect->start_trim->property_x1() = x1;
 731                         rect->start_trim->property_y1() = 1.0;
 732                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 733                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 734
 735                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 736                         rect->end_trim->property_y1() = 1.0;
 737                         rect->end_trim->property_x2() = x2;
 738                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 739
 740                         rect->start_trim->show();
 741                         rect->end_trim->show();
 742                 } else {
 743                         rect->start_trim->hide();
 744                         rect->end_trim->hide();
 745                 }
 746
 747                 rect->rect->show ();
 748                 used_selection_rects.push_back (rect);
 749         }
 750 }
 751
 752 void
 753 TimeAxisView::reshow_selection (TimeSelection& ts)
 754 {
 755         show_selection (ts);
 756
 757         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 758                 (*i)->show_selection (ts);
 759         }
 760 }
 761
 762 void
 763 TimeAxisView::hide_selection ()
 764 {
 765         if (canvas_item_visible (selection_group)) {
 766                 while (!used_selection_rects.empty()) {
 767                         free_selection_rects.push_front (used_selection_rects.front());
 768                         used_selection_rects.pop_front();
 769                         free_selection_rects.front()->rect->hide();
 770                         free_selection_rects.front()->start_trim->hide();
 771                         free_selection_rects.front()->end_trim->hide();
 772                 }
 773                 selection_group->hide();
 774         }
 775
 776         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 777                 (*i)->hide_selection ();
 778         }
 779 }
 780
 781 void
 782 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 783 {
 784         /* find the selection rect this is for. we have the item corresponding to one
 785            of the trim handles.
 786          */
 787
 788         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 789                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 790
 791                         /* make one trim handle be "above" the other so that if they overlap,
 792                            the top one is the one last used.
 793                         */
 794
 795                         (*i)->rect->raise_to_top ();
 796                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 797                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 798
 799                         break;
 800                 }
 801         }
 802 }
 803
 804 SelectionRect *
 805 TimeAxisView::get_selection_rect (uint32_t id)
 806 {
 807         SelectionRect *rect;
 808
 809         /* check to see if we already have a visible rect for this particular selection ID */
 810
 811         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 812                 if ((*i)->id == id) {
 813                         return (*i);
 814                 }
 815         }
 816
 817         /* ditto for the free rect list */
 818
 819         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 820                 if ((*i)->id == id) {
 821                         SelectionRect* ret = (*i);
 822                         free_selection_rects.erase (i);
 823                         return ret;
 824                 }
 825         }
 826
 827         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 828
 829         if (free_selection_rects.empty()) {
 830
 831                 rect = new SelectionRect;
 832
 833                 rect->rect = new SimpleRect (*selection_group);
 834                 rect->rect->property_x1() = 0.0;
 835                 rect->rect->property_y1() = 0.0;
 836                 rect->rect->property_x2() = 0.0;
 837                 rect->rect->property_y2() = 0.0;
 838                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 839                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 840
 841                 rect->start_trim = new SimpleRect (*selection_group);
 842                 rect->start_trim->property_x1() = 0.0;
 843                 rect->start_trim->property_x2() = 0.0;
 844                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 845                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 846
 847                 rect->end_trim = new SimpleRect (*selection_group);
 848                 rect->end_trim->property_x1() = 0.0;
 849                 rect->end_trim->property_x2() = 0.0;
 850                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 851                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 852
 853                 free_selection_rects.push_front (rect);
 854
 855                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 856                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 857                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 858         }
 859
 860         rect = free_selection_rects.front();
 861         rect->id = id;
 862         free_selection_rects.pop_front();
 863         return rect;
 864 }
 865
 866 struct null_deleter { void operator()(void const *) const {} };
 867
 868 bool
 869 TimeAxisView::is_child (TimeAxisView* tav)
 870 {
 871         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 872 }
 873
 874 void
 875 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 876 {
 877         children.push_back (child);
 878 }
 879
 880 void
 881 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 882 {
 883         Children::iterator i;
 884
 885         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 886                 children.erase (i);
 887         }
 888 }
 889
 890 void
 891 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 892 {
 893         return;
 894 }
 895
 896 void
 897 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 898 {
 899         return;
 900 }
 901
 902 void
 903 TimeAxisView::add_ghost (RegionView* rv) {
 904         GhostRegion* gr = rv->add_ghost (*this);
 905
 906         if(gr) {
 907                 ghosts.push_back(gr);
 908                 gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 909         }
 910 }
 911
 912 void
 913 TimeAxisView::remove_ghost (RegionView* rv) {
 914         rv->remove_ghost_in (*this);
 915 }
 916
 917 void
 918 TimeAxisView::erase_ghost (GhostRegion* gr) {
 919         if(in_destructor) {
 920                 return;
 921         }
 922
 923         list<GhostRegion*>::iterator i;
 924
 925         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 926                 if ((*i) == gr) {
 927                         ghosts.erase (i);
 928                         break;
 929                 }
 930         }
 931 }
 932
 933 bool
 934 TimeAxisView::touched (double top, double bot)
 935 {
 936         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 937            y_position is the "origin" or "top" of the track.
 938          */
 939
 940         double mybot = y_position + current_height();
 941
 942         return ((y_position <= bot && y_position >= top) ||
 943                 ((mybot <= bot) && (top < mybot)) ||
 944                 (mybot >= bot && y_position < top));
 945 }
 946
 947 void
 948 TimeAxisView::set_parent (TimeAxisView& p)
 949 {
 950         parent = &p;
 951 }
 952
 953 bool
 954 TimeAxisView::has_state () const
 955 {
 956         return _has_state;
 957 }
 958
 959 TimeAxisView*
 960 TimeAxisView::get_parent_with_state ()
 961 {
 962         if (parent == 0) {
 963                 return 0;
 964         }
 965
 966         if (parent->has_state()) {
 967                 return parent;
 968         }
 969
 970         return parent->get_parent_with_state ();
 971 }
 972
 973
 974 XMLNode&
 975 TimeAxisView::get_state ()
 976 {
 977         XMLNode* node = new XMLNode ("TAV-" + name());
 978         char buf[32];
 979
 980         snprintf (buf, sizeof(buf), "%u", height);
 981         node->add_property ("height", buf);
 982         node->add_property ("marked_for_display", (_marked_for_display ? "1" : "0"));
 983         return *node;
 984 }
 985
 986 int
 987 TimeAxisView::set_state (const XMLNode& node)
 988 {
 989         const XMLProperty *prop;
 990
 991         if ((prop = node.property ("marked_for_display")) != 0) {
 992                 _marked_for_display = (prop->value() == "1");
 993         }
 994
 995         if ((prop = node.property ("track_height")) != 0) {
 996
 997                 if (prop->value() == "largest") {
 998                         set_height (hLargest);
 999                 } else if (prop->value() == "large") {
1000                         set_height (hLarge);
1001                 } else if (prop->value() == "larger") {
1002                         set_height (hLarger);
1003                 } else if (prop->value() == "normal") {
1004                         set_height (hNormal);
1005                 } else if (prop->value() == "smaller") {
1006                         set_height (hSmaller);
1007                 } else if (prop->value() == "small") {
1008                         set_height (hSmall);
1009                 } else {
1010                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
1011                         set_height (Normal);
1012                 }
1013
1014         } else if ((prop = node.property ("height")) != 0) {
1015
1016                 set_height (atoi (prop->value()));
1017
1018         } else {
1019
1020                 set_height (hNormal);
1021         }
1022
1023         return 0;
1024 }
1025
1026 void
1027 TimeAxisView::reset_height()
1028 {
1029         set_height (height);
1030
1031         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1032                 (*i)->set_height ((*i)->height);
1033         }
1034 }
1035
1036 void
1037 TimeAxisView::compute_controls_size_info ()
1038 {
1039         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1040         Gtk::Table two_row_table (2, 8);
1041         Gtk::Table one_row_table (1, 8);
1042         Button* buttons[5];
1043         const int border_width = 2;
1044         const int extra_height = (2 * border_width) + 2 // 2 pixels for the controls frame
1045                 + 10; // resizer button
1046
1047         window.add (one_row_table);
1048
1049         one_row_table.set_border_width (border_width);
1050         one_row_table.set_row_spacings (0);
1051         one_row_table.set_col_spacings (0);
1052         one_row_table.set_homogeneous (true);
1053
1054         two_row_table.set_border_width (border_width);
1055         two_row_table.set_row_spacings (0);
1056         two_row_table.set_col_spacings (0);
1057         two_row_table.set_homogeneous (true);
1058
1059         for (int i = 0; i < 5; ++i) {
1060                 buttons[i] = manage (new Button (X_("f")));
1061                 buttons[i]->set_name ("TrackMuteButton");
1062         }
1063
1064         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1065
1066         one_row_table.show_all ();
1067         Gtk::Requisition req(one_row_table.size_request ());
1068
1069
1070         // height required to show 1 row of buttons
1071
1072         hSmaller = req.height + extra_height;
1073
1074         window.remove ();
1075         window.add (two_row_table);
1076
1077         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1078         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1079         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1080         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1081
1082         two_row_table.show_all ();
1083         req = two_row_table.size_request ();
1084
1085         // height required to show all normal buttons
1086
1087         hNormal = req.height + extra_height;
1088
1089         // these heights are all just larger than normal. no more
1090         // elements are visible (yet).
1091
1092         hLarger = hNormal + 50;
1093         hLarge = hNormal + 150;
1094         hLargest = hNormal + 250;
1095
1096         // height required to show track name
1097
1098         hSmall = 27;
1099 }
1100
1101 void
1102 TimeAxisView::show_name_label ()
1103 {
1104         if (!(name_packing & NameLabelPacked)) {
1105                 name_hbox.pack_start (name_label, true, true);
1106                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1107                 name_hbox.show ();
1108                 name_label.show ();
1109         }
1110 }
1111
1112 void
1113 TimeAxisView::show_name_entry ()
1114 {
1115         if (!(name_packing & NameEntryPacked)) {
1116                 name_hbox.pack_start (name_entry, true, true);
1117                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1118                 name_hbox.show ();
1119                 name_entry.show ();
1120         }
1121 }
1122
1123 void
1124 TimeAxisView::hide_name_label ()
1125 {
1126         if (name_packing & NameLabelPacked) {
1127                 name_hbox.remove (name_label);
1128                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1129         }
1130 }
1131
1132 void
1133 TimeAxisView::hide_name_entry ()
1134 {
1135         if (name_packing & NameEntryPacked) {
1136                 name_hbox.remove (name_entry);
1137                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1138         }
1139 }
1140
1141 void
1142 TimeAxisView::color_handler ()
1143 {
1144         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1145                 (*i)->set_colors();
1146         }
1147
1148         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1149
1150                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1151                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1152
1153                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1154                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1155
1156                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1157                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1158         }
1159
1160         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1161
1162                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1163                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1164
1165                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1166                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1167
1168                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1169                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1170         }
1171 }
1172
1173 TimeAxisView*
1174 TimeAxisView::covers_y_position (double y)
1175 {
1176         if (hidden()) {
1177                 return 0;
1178         }
1179
1180         if (y_position <= y && y < (y_position + height)) {
1181                 return this;
1182         }
1183
1184         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1185                 TimeAxisView* tv;
1186
1187                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1188                         return tv;
1189                 }
1190         }
1191
1192         return 0;
1193 }
1194
1195 void
1196 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1197 {
1198         analysis_features = pos;
1199         reshow_feature_lines ();
1200 }
1201
1202
1203 void
1204 TimeAxisView::hide_feature_lines ()
1205 {
1206         list<ArdourCanvas::SimpleLine*>::iterator l;
1207
1208         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1209                 (*l)->hide();
1210         }
1211 }
1212
1213 void
1214 TimeAxisView::reshow_feature_lines ()
1215 {
1216         while (feature_lines.size()< analysis_features.size()) {
1217                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1218                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1219                 feature_lines.push_back (l);
1220         }
1221
1222         while (feature_lines.size() > analysis_features.size()) {
1223                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1224                 feature_lines.pop_back ();
1225                 delete line;
1226         }
1227
1228         AnalysisFeatureList::const_iterator i;
1229         list<ArdourCanvas::SimpleLine*>::iterator l;
1230
1231         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1232                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1233                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1234                 (*l)->property_y1() = 0;
1235                 (*l)->property_y2() = current_height();
1236                 (*l)->show ();
1237         }
1238 }
1239
1240 bool
1241 TimeAxisView::resizer_button_press (GdkEventButton* event)
1242 {
1243         resize_drag_start = event->y_root;
1244         resize_idle_target = current_height();
1245         editor.start_resize_line_ops ();
1246         return true;
1247 }
1248
1249 bool
1250 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1251 {
1252         resize_drag_start = -1;
1253         editor.end_resize_line_ops ();
1254         return true;
1255 }
1256
1257 void
1258 TimeAxisView::idle_resize (uint32_t h)
1259 {
1260         set_height (h);
1261 }
1262
1263 bool
1264 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1265 {
1266         if (resize_drag_start < 0) {
1267                 return true;
1268         }
1269
1270         int32_t delta = (int32_t) floor (resize_drag_start - ev->y_root);
1271
1272         resize_idle_target = std::max (resize_idle_target - delta, (int) hSmall);
1273         editor.add_to_idle_resize (this, resize_idle_target);
1274
1275         resize_drag_start = ev->y_root;
1276
1277         return true;
1278 }
1279
1280 bool
1281 TimeAxisView::resizer_expose (GdkEventExpose* event)
1282 {
1283         int w, h, x, y, d;
1284         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1285         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1286         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1287
1288         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1289                              true,
1290                              event->area.x,
1291                              event->area.y,
1292                              event->area.width,
1293                              event->area.height);
1294
1295         win->get_geometry (x, y, w, h, d);
1296
1297         /* handle/line #1 */
1298
1299         win->draw_line (dark, 0, 0, w - 2, 0);
1300         win->draw_point (dark, 0, 1);
1301         win->draw_line (light, 1, 1, w - 1, 1);
1302         win->draw_point (light, w - 1, 0);
1303
1304         /* handle/line #2 */
1305
1306         win->draw_line (dark, 0, 4, w - 2, 4);
1307         win->draw_point (dark, 0, 5);
1308         win->draw_line (light, 1, 5, w - 1, 5);
1309         win->draw_point (light, w - 1, 4);
1310
1311         /* handle/line #3 */
1312
1313         win->draw_line (dark, 0, 8, w - 2, 8);
1314         win->draw_point (dark, 0, 9);
1315         win->draw_line (light, 1, 9, w - 1, 9);
1316         win->draw_point (light, w - 1, 8);
1317
1318         return true;
1319 }
1320