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