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         gdouble ix1, ix2, iy1, iy2;
 228         effective_height = 0;
 229
 230         if (control_parent) {
 231                 control_parent->reorder_child (controls_hbox, nth);
 232         } else {
 233                 control_parent = parent;
 234                 parent->pack_start (controls_hbox, false, false);
 235                 parent->reorder_child (controls_hbox, nth);
 236         }
 237         //controls_frame.show ();
 238         controls_hbox.show ();
 239         controls_ebox.show ();
 240
 241         /* the coordinates used here are in the system of the
 242            item's parent ...
 243         */
 244
 245         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 246         iy1 += editor.get_trackview_group_vertical_offset ();
 247         Group* pg = canvas_display->property_parent();
 248         pg->i2w (ix1, iy1);
 249
 250         if (iy1 < 0) {
 251                 iy1 = 0;
 252         }
 253
 254         canvas_display->move (0.0, y - iy1);
 255         canvas_display->show();/* XXX not necessary */
 256         y_position = y;
 257         order = nth;
 258         _hidden = false;
 259
 260         /* height in pixels depends on _order, so update it now we've changed _order */
 261
 262         set_height (height);
 263
 264         effective_height = current_height();
 265
 266         /* now show children */
 267
 268         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 269
 270                 if ((*i)->marked_for_display()) {
 271                         (*i)->canvas_display->show();
 272                 }
 273
 274                 if (canvas_item_visible ((*i)->canvas_display)) {
 275                         ++nth;
 276                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 277                 }
 278         }
 279
 280         return effective_height;
 281 }
 282
 283 bool
 284 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 285 {
 286         switch (ev->direction) {
 287         case GDK_SCROLL_UP:
 288                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 289                         step_height (true);
 290                         return true;
 291                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 292                         editor.scroll_tracks_up_line();
 293                         return true;
 294                 }
 295                 break;
 296
 297         case GDK_SCROLL_DOWN:
 298                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 299                         step_height (false);
 300                         return true;
 301                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 302                         editor.scroll_tracks_down_line();
 303                         return true;
 304                 }
 305                 break;
 306
 307         default:
 308                 /* no handling for left/right, yet */
 309                 break;
 310         }
 311
 312         return false;
 313 }
 314
 315 bool
 316 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 317 {
 318         switch (ev->button) {
 319         case 1:
 320                 selection_click (ev);
 321                 break;
 322
 323         case 3:
 324                 popup_display_menu (ev->time);
 325                 break;
 326         }
 327
 328         return true;
 329 }
 330
 331 void
 332 TimeAxisView::selection_click (GdkEventButton* ev)
 333 {
 334         Selection::Operation op = Keyboard::selection_type (ev->state);
 335         editor.set_selected_track (*this, op, false);
 336 }
 337
 338 void
 339 TimeAxisView::hide ()
 340 {
 341         if (_hidden) {
 342                 return;
 343         }
 344
 345         canvas_display->hide();
 346         controls_hbox.hide ();
 347
 348         if (control_parent) {
 349                 control_parent->remove (controls_hbox);
 350                 control_parent = 0;
 351         }
 352
 353         y_position = -1;
 354         _hidden = true;
 355
 356         /* now hide children */
 357
 358         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 359                 (*i)->hide ();
 360         }
 361
 362         Hiding ();
 363 }
 364
 365 void
 366 TimeAxisView::step_height (bool bigger)
 367 {
 368         static const uint32_t step = 20;
 369
 370         if (bigger) {
 371                 set_height (height + step);
 372         } else {
 373                 if (height > step) {
 374                         set_height (std::max (height - step, hSmall));
 375                 } else if (height != hSmall) {
 376                         set_height (hSmall);
 377                 }
 378         }
 379 }
 380
 381 void
 382 TimeAxisView::set_heights (uint32_t h)
 383 {
 384         TrackSelection& ts (editor.get_selection().tracks);
 385
 386         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 387                 (*i)->set_height (h);
 388         }
 389 }
 390
 391 void
 392 TimeAxisView::set_height(uint32_t h)
 393 {
 394         height = h;
 395
 396         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 397                 (*i)->set_height ();
 398         }
 399
 400         if (canvas_item_visible (selection_group)) {
 401                 /* resize the selection rect */
 402                 show_selection (editor.get_selection().time);
 403         }
 404
 405         reshow_feature_lines ();
 406 }
 407
 408 bool
 409 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 410 {
 411         PublicEditor::TrackViewList *allviews = 0;
 412         PublicEditor::TrackViewList::iterator i;
 413
 414         switch (ev->keyval) {
 415         case GDK_Escape:
 416                 name_entry.select_region (0,0);
 417                 controls_ebox.grab_focus ();
 418                 name_entry_changed ();
 419                 return true;
 420
 421         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 422          * generates a different ev->keyval, rather than setting
 423          * ev->state.
 424          */
 425         case GDK_ISO_Left_Tab:
 426         case GDK_Tab:
 427                 name_entry_changed ();
 428                 allviews = editor.get_valid_views (0);
 429                 if (allviews != 0) {
 430                         i = find (allviews->begin(), allviews->end(), this);
 431                         if (ev->keyval == GDK_Tab) {
 432                                 if (i != allviews->end()) {
 433                                         do {
 434                                                 if (++i == allviews->end()) { return true; }
 435                                         } while((*i)->hidden());
 436                                 }
 437                         } else {
 438                                 if (i != allviews->begin()) {
 439                                         do {
 440                                                 if (--i == allviews->begin()) { return true; }
 441                                         } while ((*i)->hidden());
 442                                 }
 443                         }
 444
 445
 446                         /* resize to show editable name display */
 447
 448                         if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 449                                 (*i)->set_height (hSmaller);
 450                         }
 451
 452                         (*i)->name_entry.grab_focus();
 453                 }
 454                 return true;
 455
 456         case GDK_Up:
 457         case GDK_Down:
 458                 name_entry_changed ();
 459                 return true;
 460
 461         default:
 462                 break;
 463         }
 464
 465 #ifdef TIMEOUT_NAME_EDIT
 466         /* adapt the timeout to reflect the user's typing speed */
 467
 468         guint32 name_entry_timeout;
 469
 470         if (last_name_entry_key_press_event) {
 471                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 472                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 473         } else {
 474                 /* start with a 1 second timeout */
 475                 name_entry_timeout = 1000;
 476         }
 477
 478         last_name_entry_key_press_event = ev->time;
 479
 480         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 481
 482         name_entry_key_timeout.disconnect();
 483         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 484 #endif
 485
 486         return false;
 487 }
 488
 489 bool
 490 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 491 {
 492         name_entry.select_region (0, -1);
 493         name_entry.set_name ("EditorActiveTrackNameDisplay");
 494         return false;
 495 }
 496
 497 bool
 498 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 499 {
 500         /* clean up */
 501
 502         last_name_entry_key_press_event = 0;
 503         name_entry_key_timeout.disconnect ();
 504         name_entry.set_name ("EditorTrackNameDisplay");
 505         name_entry.select_region (0,0);
 506
 507         /* do the real stuff */
 508
 509         name_entry_changed ();
 510
 511         return false;
 512 }
 513
 514 bool
 515 TimeAxisView::name_entry_key_timed_out ()
 516 {
 517         name_entry_activated();
 518         return false;
 519 }
 520
 521 void
 522 TimeAxisView::name_entry_activated ()
 523 {
 524         controls_ebox.grab_focus();
 525 }
 526
 527 void
 528 TimeAxisView::name_entry_changed ()
 529 {
 530 }
 531
 532 bool
 533 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 534 {
 535         if (ev->button == 3) {
 536                 return true;
 537         }
 538         return false;
 539 }
 540
 541 bool
 542 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 543 {
 544         if (ev->button == 3) {
 545                 popup_display_menu (ev->time);
 546                 return true;
 547         }
 548         return false;
 549 }
 550
 551 void
 552 TimeAxisView::conditionally_add_to_selection ()
 553 {
 554         Selection& s (editor.get_selection());
 555
 556         if (!s.selected (this)) {
 557                 editor.set_selected_track (*this, Selection::Set);
 558         }
 559 }
 560
 561
 562 void
 563 TimeAxisView::popup_display_menu (guint32 when)
 564 {
 565         if (display_menu == 0) {
 566                 build_display_menu ();
 567         }
 568
 569         conditionally_add_to_selection ();
 570         display_menu->popup (1, when);
 571 }
 572
 573 gint
 574 TimeAxisView::size_click (GdkEventButton *ev)
 575 {
 576         conditionally_add_to_selection ();
 577         popup_size_menu (ev->time);
 578         return TRUE;
 579 }
 580
 581 void
 582 TimeAxisView::popup_size_menu (guint32 when)
 583 {
 584         if (size_menu == 0) {
 585                 build_size_menu ();
 586         }
 587         size_menu->popup (1, when);
 588 }
 589
 590 void
 591 TimeAxisView::set_selected (bool yn)
 592 {
 593         if (yn == _selected) {
 594                 return;
 595         }
 596
 597         Selectable::set_selected (yn);
 598
 599         if (_selected) {
 600                 controls_ebox.set_name (controls_base_selected_name);
 601                 controls_hbox.set_name (controls_base_selected_name);
 602                 controls_vbox.set_name (controls_base_selected_name);
 603                 /* propagate any existing selection, if the mode is right */
 604
 605                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 606                         show_selection (editor.get_selection().time);
 607                 }
 608
 609         } else {
 610                 controls_ebox.set_name (controls_base_unselected_name);
 611                 controls_hbox.set_name (controls_base_unselected_name);
 612                 controls_vbox.set_name (controls_base_unselected_name);
 613                 hide_selection ();
 614
 615                 /* children will be set for the yn=true case. but when deselecting
 616                    the editor only has a list of top-level trackviews, so we
 617                    have to do this here.
 618                 */
 619
 620                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 621                         (*i)->set_selected (false);
 622                 }
 623         }
 624
 625         resizer.queue_draw ();
 626 }
 627
 628 void
 629 TimeAxisView::build_size_menu ()
 630 {
 631         using namespace Menu_Helpers;
 632
 633         size_menu = new Menu;
 634         size_menu->set_name ("ArdourContextMenu");
 635         MenuList& items = size_menu->items();
 636
 637         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 638         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 639         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 640         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 641         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 642         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 643 }
 644
 645 void
 646 TimeAxisView::build_display_menu ()
 647 {
 648         using namespace Menu_Helpers;
 649
 650         display_menu = new Menu;
 651         display_menu->set_name ("ArdourContextMenu");
 652
 653         // Just let implementing classes define what goes into the manu
 654 }
 655
 656 void
 657 TimeAxisView::set_samples_per_unit (double spu)
 658 {
 659         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 660                 (*i)->set_samples_per_unit (spu);
 661         }
 662
 663         AnalysisFeatureList::const_iterator i;
 664         list<ArdourCanvas::SimpleLine*>::iterator l;
 665
 666         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 667                 (*l)->property_x1() = editor.frame_to_pixel (*i);
 668                 (*l)->property_x2() = editor.frame_to_pixel (*i);
 669         }
 670 }
 671
 672 void
 673 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 674 {
 675         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 676                 (*i)->show_timestretch (start, end);
 677         }
 678 }
 679
 680 void
 681 TimeAxisView::hide_timestretch ()
 682 {
 683         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 684                 (*i)->hide_timestretch ();
 685         }
 686 }
 687
 688 void
 689 TimeAxisView::show_selection (TimeSelection& ts)
 690 {
 691         double x1;
 692         double x2;
 693         double y2;
 694         SelectionRect *rect;
 695
 696         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 697                 (*i)->show_selection (ts);
 698         }
 699
 700         if (canvas_item_visible (selection_group)) {
 701                 while (!used_selection_rects.empty()) {
 702                         free_selection_rects.push_front (used_selection_rects.front());
 703                         used_selection_rects.pop_front();
 704                         free_selection_rects.front()->rect->hide();
 705                         free_selection_rects.front()->start_trim->hide();
 706                         free_selection_rects.front()->end_trim->hide();
 707                 }
 708                 selection_group->hide();
 709         }
 710
 711         selection_group->show();
 712         selection_group->raise_to_top();
 713
 714         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 715                 nframes_t start, end, cnt;
 716
 717                 start = (*i).start;
 718                 end = (*i).end;
 719                 cnt = end - start + 1;
 720
 721                 rect = get_selection_rect ((*i).id);
 722
 723                 x1 = editor.frame_to_unit (start);
 724                 x2 = editor.frame_to_unit (start + cnt - 1);
 725                 y2 = current_height();
 726
 727                 rect->rect->property_x1() = x1;
 728                 rect->rect->property_y1() = 1.0;
 729                 rect->rect->property_x2() = x2;
 730                 rect->rect->property_y2() = y2;
 731
 732                 // trim boxes are at the top for selections
 733
 734                 if (x2 > x1) {
 735                         rect->start_trim->property_x1() = x1;
 736                         rect->start_trim->property_y1() = 1.0;
 737                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 738                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 739
 740                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 741                         rect->end_trim->property_y1() = 1.0;
 742                         rect->end_trim->property_x2() = x2;
 743                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 744
 745                         rect->start_trim->show();
 746                         rect->end_trim->show();
 747                 } else {
 748                         rect->start_trim->hide();
 749                         rect->end_trim->hide();
 750                 }
 751
 752                 rect->rect->show ();
 753                 used_selection_rects.push_back (rect);
 754         }
 755 }
 756
 757 void
 758 TimeAxisView::reshow_selection (TimeSelection& ts)
 759 {
 760         show_selection (ts);
 761
 762         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 763                 (*i)->show_selection (ts);
 764         }
 765 }
 766
 767 void
 768 TimeAxisView::hide_selection ()
 769 {
 770         if (canvas_item_visible (selection_group)) {
 771                 while (!used_selection_rects.empty()) {
 772                         free_selection_rects.push_front (used_selection_rects.front());
 773                         used_selection_rects.pop_front();
 774                         free_selection_rects.front()->rect->hide();
 775                         free_selection_rects.front()->start_trim->hide();
 776                         free_selection_rects.front()->end_trim->hide();
 777                 }
 778                 selection_group->hide();
 779         }
 780
 781         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 782                 (*i)->hide_selection ();
 783         }
 784 }
 785
 786 void
 787 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 788 {
 789         /* find the selection rect this is for. we have the item corresponding to one
 790            of the trim handles.
 791          */
 792
 793         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 794                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 795
 796                         /* make one trim handle be "above" the other so that if they overlap,
 797                            the top one is the one last used.
 798                         */
 799
 800                         (*i)->rect->raise_to_top ();
 801                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 802                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 803
 804                         break;
 805                 }
 806         }
 807 }
 808
 809 SelectionRect *
 810 TimeAxisView::get_selection_rect (uint32_t id)
 811 {
 812         SelectionRect *rect;
 813
 814         /* check to see if we already have a visible rect for this particular selection ID */
 815
 816         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 817                 if ((*i)->id == id) {
 818                         return (*i);
 819                 }
 820         }
 821
 822         /* ditto for the free rect list */
 823
 824         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 825                 if ((*i)->id == id) {
 826                         SelectionRect* ret = (*i);
 827                         free_selection_rects.erase (i);
 828                         return ret;
 829                 }
 830         }
 831
 832         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 833
 834         if (free_selection_rects.empty()) {
 835
 836                 rect = new SelectionRect;
 837
 838                 rect->rect = new SimpleRect (*selection_group);
 839                 rect->rect->property_x1() = 0.0;
 840                 rect->rect->property_y1() = 0.0;
 841                 rect->rect->property_x2() = 0.0;
 842                 rect->rect->property_y2() = 0.0;
 843                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 844                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 845
 846                 rect->start_trim = new SimpleRect (*selection_group);
 847                 rect->start_trim->property_x1() = 0.0;
 848                 rect->start_trim->property_x2() = 0.0;
 849                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 850                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 851
 852                 rect->end_trim = new SimpleRect (*selection_group);
 853                 rect->end_trim->property_x1() = 0.0;
 854                 rect->end_trim->property_x2() = 0.0;
 855                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 856                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 857
 858                 free_selection_rects.push_front (rect);
 859
 860                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 861                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 862                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 863         }
 864
 865         rect = free_selection_rects.front();
 866         rect->id = id;
 867         free_selection_rects.pop_front();
 868         return rect;
 869 }
 870
 871 struct null_deleter { void operator()(void const *) const {} };
 872
 873 bool
 874 TimeAxisView::is_child (TimeAxisView* tav)
 875 {
 876         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 877 }
 878
 879 void
 880 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 881 {
 882         children.push_back (child);
 883 }
 884
 885 void
 886 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 887 {
 888         Children::iterator i;
 889
 890         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 891                 children.erase (i);
 892         }
 893 }
 894
 895 void
 896 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 897 {
 898         return;
 899 }
 900
 901 void
 902 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 903 {
 904         return;
 905 }
 906
 907 void
 908 TimeAxisView::add_ghost (RegionView* rv) {
 909         GhostRegion* gr = rv->add_ghost (*this);
 910
 911         if(gr) {
 912                 ghosts.push_back(gr);
 913                 gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 914         }
 915 }
 916
 917 void
 918 TimeAxisView::remove_ghost (RegionView* rv) {
 919         rv->remove_ghost_in (*this);
 920 }
 921
 922 void
 923 TimeAxisView::erase_ghost (GhostRegion* gr) {
 924         if(in_destructor) {
 925                 return;
 926         }
 927
 928         list<GhostRegion*>::iterator i;
 929
 930         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 931                 if ((*i) == gr) {
 932                         ghosts.erase (i);
 933                         break;
 934                 }
 935         }
 936 }
 937
 938 bool
 939 TimeAxisView::touched (double top, double bot)
 940 {
 941         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 942            y_position is the "origin" or "top" of the track.
 943          */
 944
 945         double mybot = y_position + current_height();
 946
 947         return ((y_position <= bot && y_position >= top) ||
 948                 ((mybot <= bot) && (top < mybot)) ||
 949                 (mybot >= bot && y_position < top));
 950 }
 951
 952 void
 953 TimeAxisView::set_parent (TimeAxisView& p)
 954 {
 955         parent = &p;
 956 }
 957
 958 bool
 959 TimeAxisView::has_state () const
 960 {
 961         return _has_state;
 962 }
 963
 964 TimeAxisView*
 965 TimeAxisView::get_parent_with_state ()
 966 {
 967         if (parent == 0) {
 968                 return 0;
 969         }
 970
 971         if (parent->has_state()) {
 972                 return parent;
 973         }
 974
 975         return parent->get_parent_with_state ();
 976 }
 977
 978
 979 XMLNode&
 980 TimeAxisView::get_state ()
 981 {
 982         XMLNode* node = new XMLNode ("TAV-" + name());
 983         char buf[32];
 984
 985         snprintf (buf, sizeof(buf), "%u", height);
 986         node->add_property ("height", buf);
 987         node->add_property ("marked_for_display", (_marked_for_display ? "1" : "0"));
 988         return *node;
 989 }
 990
 991 int
 992 TimeAxisView::set_state (const XMLNode& node)
 993 {
 994         const XMLProperty *prop;
 995
 996         if ((prop = node.property ("marked_for_display")) != 0) {
 997                 _marked_for_display = (prop->value() == "1");
 998         }
 999
1000         if ((prop = node.property ("track_height")) != 0) {
1001
1002                 if (prop->value() == "largest") {
1003                         set_height (hLargest);
1004                 } else if (prop->value() == "large") {
1005                         set_height (hLarge);
1006                 } else if (prop->value() == "larger") {
1007                         set_height (hLarger);
1008                 } else if (prop->value() == "normal") {
1009                         set_height (hNormal);
1010                 } else if (prop->value() == "smaller") {
1011                         set_height (hSmaller);
1012                 } else if (prop->value() == "small") {
1013                         set_height (hSmall);
1014                 } else {
1015                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
1016                         set_height (Normal);
1017                 }
1018
1019         } else if ((prop = node.property ("height")) != 0) {
1020
1021                 set_height (atoi (prop->value()));
1022
1023         } else {
1024
1025                 set_height (hNormal);
1026         }
1027
1028         return 0;
1029 }
1030
1031 void
1032 TimeAxisView::reset_height()
1033 {
1034         set_height (height);
1035
1036         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1037                 (*i)->set_height ((*i)->height);
1038         }
1039 }
1040
1041 void
1042 TimeAxisView::compute_controls_size_info ()
1043 {
1044         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1045         Gtk::Table two_row_table (2, 8);
1046         Gtk::Table one_row_table (1, 8);
1047         Button* buttons[5];
1048         const int border_width = 2;
1049         const int extra_height = (2 * border_width)
1050                 + 2   // 2 pixels for the hseparator between TimeAxisView control areas
1051                 + 10; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
1052
1053         window.add (one_row_table);
1054
1055         one_row_table.set_border_width (border_width);
1056         one_row_table.set_row_spacings (0);
1057         one_row_table.set_col_spacings (0);
1058         one_row_table.set_homogeneous (true);
1059
1060         two_row_table.set_border_width (border_width);
1061         two_row_table.set_row_spacings (0);
1062         two_row_table.set_col_spacings (0);
1063         two_row_table.set_homogeneous (true);
1064
1065         for (int i = 0; i < 5; ++i) {
1066                 buttons[i] = manage (new Button (X_("f")));
1067                 buttons[i]->set_name ("TrackMuteButton");
1068         }
1069
1070         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1071
1072         one_row_table.show_all ();
1073         Gtk::Requisition req(one_row_table.size_request ());
1074
1075
1076         // height required to show 1 row of buttons
1077
1078         hSmaller = req.height + extra_height;
1079
1080         window.remove ();
1081         window.add (two_row_table);
1082
1083         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1084         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1085         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1086         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1087
1088         two_row_table.show_all ();
1089         req = two_row_table.size_request ();
1090
1091         cerr << "Normal height is " << req.height << " + " << extra_height << endl;
1092
1093         // height required to show all normal buttons
1094
1095         hNormal = /*req.height*/ 48 + extra_height;
1096
1097         // these heights are all just larger than normal. no more
1098         // elements are visible (yet).
1099
1100         hLarger = hNormal + 50;
1101         hLarge = hNormal + 150;
1102         hLargest = hNormal + 250;
1103
1104         // height required to show track name
1105
1106         hSmall = 27;
1107 }
1108
1109 void
1110 TimeAxisView::show_name_label ()
1111 {
1112         if (!(name_packing & NameLabelPacked)) {
1113                 name_hbox.pack_start (name_label, true, true);
1114                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1115                 name_hbox.show ();
1116                 name_label.show ();
1117         }
1118 }
1119
1120 void
1121 TimeAxisView::show_name_entry ()
1122 {
1123         if (!(name_packing & NameEntryPacked)) {
1124                 name_hbox.pack_start (name_entry, true, true);
1125                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1126                 name_hbox.show ();
1127                 name_entry.show ();
1128         }
1129 }
1130
1131 void
1132 TimeAxisView::hide_name_label ()
1133 {
1134         if (name_packing & NameLabelPacked) {
1135                 name_hbox.remove (name_label);
1136                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1137         }
1138 }
1139
1140 void
1141 TimeAxisView::hide_name_entry ()
1142 {
1143         if (name_packing & NameEntryPacked) {
1144                 name_hbox.remove (name_entry);
1145                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1146         }
1147 }
1148
1149 void
1150 TimeAxisView::color_handler ()
1151 {
1152         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1153                 (*i)->set_colors();
1154         }
1155
1156         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1157
1158                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1159                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1160
1161                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1162                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1163
1164                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1165                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1166         }
1167
1168         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1169
1170                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1171                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1172
1173                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1174                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1175
1176                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1177                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1178         }
1179 }
1180
1181 TimeAxisView*
1182 TimeAxisView::covers_y_position (double y)
1183 {
1184         if (hidden()) {
1185                 return 0;
1186         }
1187
1188         cerr << name() << " check for " << y << " within " << y_position << " and + " << height << endl;
1189
1190         if (y_position <= y && y < (y_position + height)) {
1191                 return this;
1192         }
1193
1194         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1195                 TimeAxisView* tv;
1196
1197                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1198                         return tv;
1199                 }
1200         }
1201
1202         return 0;
1203 }
1204
1205 void
1206 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1207 {
1208         analysis_features = pos;
1209         reshow_feature_lines ();
1210 }
1211
1212
1213 void
1214 TimeAxisView::hide_feature_lines ()
1215 {
1216         list<ArdourCanvas::SimpleLine*>::iterator l;
1217
1218         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1219                 (*l)->hide();
1220         }
1221 }
1222
1223 void
1224 TimeAxisView::reshow_feature_lines ()
1225 {
1226         while (feature_lines.size()< analysis_features.size()) {
1227                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1228                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1229                 feature_lines.push_back (l);
1230         }
1231
1232         while (feature_lines.size() > analysis_features.size()) {
1233                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1234                 feature_lines.pop_back ();
1235                 delete line;
1236         }
1237
1238         AnalysisFeatureList::const_iterator i;
1239         list<ArdourCanvas::SimpleLine*>::iterator l;
1240
1241         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1242                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1243                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1244                 (*l)->property_y1() = 0;
1245                 (*l)->property_y2() = current_height();
1246                 (*l)->show ();
1247         }
1248 }
1249
1250 bool
1251 TimeAxisView::resizer_button_press (GdkEventButton* event)
1252 {
1253         resize_drag_start = event->y_root;
1254         resize_idle_target = current_height();
1255         editor.start_resize_line_ops ();
1256         return true;
1257 }
1258
1259 bool
1260 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1261 {
1262         resize_drag_start = -1;
1263         editor.end_resize_line_ops ();
1264         return true;
1265 }
1266
1267 void
1268 TimeAxisView::idle_resize (uint32_t h)
1269 {
1270         set_height (h);
1271 }
1272
1273 bool
1274 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1275 {
1276         if (resize_drag_start < 0) {
1277                 return true;
1278         }
1279
1280         int32_t delta = (int32_t) floor (resize_drag_start - ev->y_root);
1281
1282         resize_idle_target = std::max (resize_idle_target - delta, (int) hSmall);
1283         editor.add_to_idle_resize (this, resize_idle_target);
1284
1285         resize_drag_start = ev->y_root;
1286
1287         return true;
1288 }
1289
1290 bool
1291 TimeAxisView::resizer_expose (GdkEventExpose* event)
1292 {
1293         int w, h, x, y, d;
1294         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1295         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1296         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1297
1298         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1299                              true,
1300                              event->area.x,
1301                              event->area.y,
1302                              event->area.width,
1303                              event->area.height);
1304
1305         win->get_geometry (x, y, w, h, d);
1306
1307         /* handle/line #1 */
1308
1309         win->draw_line (dark, 0, 0, w - 2, 0);
1310         win->draw_point (dark, 0, 1);
1311         win->draw_line (light, 1, 1, w - 1, 1);
1312         win->draw_point (light, w - 1, 0);
1313
1314         /* handle/line #2 */
1315
1316         win->draw_line (dark, 0, 4, w - 2, 4);
1317         win->draw_point (dark, 0, 5);
1318         win->draw_line (light, 1, 5, w - 1, 5);
1319         win->draw_point (light, w - 1, 4);
1320
1321         /* handle/line #3 */
1322
1323         win->draw_line (dark, 0, 8, w - 2, 8);
1324         win->draw_point (dark, 0, 9);
1325         win->draw_line (light, 1, 9, w - 1, 9);
1326         win->draw_point (light, w - 1, 8);
1327
1328         return true;
1329 }
1330