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         _marked_for_display = false;
  99         _hidden = false;
 100         in_destructor = false;
 101         height = 0;
 102         effective_height = 0;
 103         parent = rent;
 104         _has_state = false;
 105         last_name_entry_key_press_event = 0;
 106         name_packing = NamePackingBits (0);
 107         resize_drag_start = -1;
 108
 109         /*
 110           Create the standard LHS Controls
 111           We create the top-level container and name add the name label here,
 112           subclasses can add to the layout as required
 113         */
 114
 115         name_entry.set_name ("EditorTrackNameDisplay");
 116         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 117         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 118         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 119         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 120         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 121         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 122         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 123
 124         name_label.set_name ("TrackLabel");
 125         name_label.set_alignment (0.0, 0.5);
 126
 127         /* typically, either name_label OR name_entry are visible,
 128            but not both. its up to derived classes to show/hide them as they
 129            wish.
 130         */
 131
 132         name_hbox.show ();
 133
 134         controls_table.set_border_width (2);
 135         controls_table.set_row_spacings (0);
 136         controls_table.set_col_spacings (0);
 137         controls_table.set_homogeneous (true);
 138
 139         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 140         controls_table.show_all ();
 141         controls_table.set_no_show_all ();
 142
 143         resizer.set_size_request (10, 10);
 144         resizer.set_name ("ResizeHandle");
 145         resizer.signal_expose_event().connect (mem_fun (*this, &TimeAxisView::resizer_expose));
 146         resizer.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_press));
 147         resizer.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_release));
 148         resizer.signal_motion_notify_event().connect (mem_fun (*this, &TimeAxisView::resizer_motion));
 149         resizer.set_events (Gdk::BUTTON_PRESS_MASK|
 150                             Gdk::BUTTON_RELEASE_MASK|
 151                             Gdk::POINTER_MOTION_MASK|
 152                             Gdk::SCROLL_MASK);
 153
 154         resizer_box.pack_start (resizer, false, false);
 155         resizer.show ();
 156         resizer_box.show();
 157
 158         controls_vbox.pack_start (controls_table, false, false);
 159         controls_vbox.pack_end (resizer_box, false, true);
 160         controls_vbox.show ();
 161
 162         //controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 163         controls_ebox.add (controls_vbox);
 164         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 165         controls_ebox.set_flags (CAN_FOCUS);
 166
 167         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 168         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 169
 170         controls_hbox.pack_start (controls_ebox,true,true);
 171         controls_hbox.show ();
 172
 173         //controls_frame.add (controls_hbox);
 174         //controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 175         //controls_vbox.set_name ("TimeAxisViewControlsBaseUnselected");
 176         //controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 177
 178         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 179 }
 180
 181 TimeAxisView::~TimeAxisView()
 182 {
 183         in_destructor = true;
 184
 185         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 186                 delete *i;
 187         }
 188
 189         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 190                 delete (*i)->rect;
 191                 delete (*i)->start_trim;
 192                 delete (*i)->end_trim;
 193
 194         }
 195
 196         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 197                 delete (*i)->rect;
 198                 delete (*i)->start_trim;
 199                 delete (*i)->end_trim;
 200         }
 201
 202         for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 203                 delete (*i);
 204         }
 205
 206         if (selection_group) {
 207                 delete selection_group;
 208                 selection_group = 0;
 209         }
 210
 211         if (canvas_display) {
 212                 delete canvas_display;
 213                 canvas_display = 0;
 214         }
 215
 216         if (display_menu) {
 217                 delete display_menu;
 218                 display_menu = 0;
 219         }
 220 }
 221
 222 guint32
 223 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 224 {
 225         gdouble ix1, ix2, iy1, iy2;
 226         effective_height = 0;
 227
 228         if (control_parent) {
 229                 control_parent->reorder_child (controls_hbox, nth);
 230         } else {
 231                 control_parent = parent;
 232                 parent->pack_start (controls_hbox, false, false);
 233                 parent->reorder_child (controls_hbox, nth);
 234         }
 235         controls_hbox.show ();
 236         controls_ebox.show ();
 237
 238         /* the coordinates used here are in the system of the
 239            item's parent ...
 240         */
 241
 242         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 243         iy1 += editor.get_trackview_group_vertical_offset ();
 244         Group* pg = canvas_display->property_parent();
 245         pg->i2w (ix1, iy1);
 246
 247         if (iy1 < 0) {
 248                 iy1 = 0;
 249         }
 250
 251         canvas_display->move (0.0, y - iy1);
 252         canvas_display->show();/* XXX not necessary */
 253         y_position = y;
 254         order = nth;
 255         _hidden = false;
 256
 257         /* height in pixels depends on _order, so update it now we've changed _order */
 258         set_height (height);
 259
 260         effective_height = current_height();
 261
 262         /* now show children */
 263
 264         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 265
 266                 if ((*i)->marked_for_display()) {
 267                         (*i)->canvas_display->show();
 268                 }
 269
 270                 if (canvas_item_visible ((*i)->canvas_display)) {
 271                         ++nth;
 272                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 273                 }
 274         }
 275
 276         return effective_height;
 277 }
 278
 279 bool
 280 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 281 {
 282         switch (ev->direction) {
 283         case GDK_SCROLL_UP:
 284                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 285                         step_height (true);
 286                         return true;
 287                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 288                         editor.scroll_tracks_up_line();
 289                         return true;
 290                 }
 291                 break;
 292
 293         case GDK_SCROLL_DOWN:
 294                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 295                         step_height (false);
 296                         return true;
 297                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 298                         editor.scroll_tracks_down_line();
 299                         return true;
 300                 }
 301                 break;
 302
 303         default:
 304                 /* no handling for left/right, yet */
 305                 break;
 306         }
 307
 308         return false;
 309 }
 310
 311 bool
 312 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 313 {
 314         switch (ev->button) {
 315         case 1:
 316                 selection_click (ev);
 317                 break;
 318
 319         case 3:
 320                 popup_display_menu (ev->time);
 321                 break;
 322         }
 323
 324         return true;
 325 }
 326
 327 void
 328 TimeAxisView::selection_click (GdkEventButton* ev)
 329 {
 330         Selection::Operation op = Keyboard::selection_type (ev->state);
 331         editor.set_selected_track (*this, op, false);
 332 }
 333
 334 void
 335 TimeAxisView::hide ()
 336 {
 337         if (_hidden) {
 338                 return;
 339         }
 340
 341         canvas_display->hide();
 342         controls_hbox.hide ();
 343
 344         if (control_parent) {
 345                 control_parent->remove (controls_hbox);
 346                 control_parent = 0;
 347         }
 348
 349         y_position = -1;
 350         _hidden = true;
 351
 352         /* now hide children */
 353
 354         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 355                 (*i)->hide ();
 356         }
 357
 358         Hiding ();
 359 }
 360
 361 void
 362 TimeAxisView::step_height (bool bigger)
 363 {
 364         static const uint32_t step = 20;
 365
 366         if (bigger) {
 367                 set_height (height + step);
 368         } else {
 369                 if (height > step) {
 370                         set_height (std::max (height - step, hSmall));
 371                 } else if (height != hSmall) {
 372                         set_height (hSmall);
 373                 }
 374         }
 375 }
 376
 377 void
 378 TimeAxisView::set_heights (uint32_t h)
 379 {
 380         TrackSelection& ts (editor.get_selection().tracks);
 381
 382         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 383                 (*i)->set_height (h);
 384         }
 385 }
 386
 387 void
 388 TimeAxisView::set_height(uint32_t h)
 389 {
 390         height = h;
 391
 392         for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 393                 (*i)->set_height ();
 394         }
 395
 396         if (canvas_item_visible (selection_group)) {
 397                 /* resize the selection rect */
 398                 show_selection (editor.get_selection().time);
 399         }
 400
 401         reshow_feature_lines ();
 402 }
 403
 404 bool
 405 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 406 {
 407         PublicEditor::TrackViewList *allviews = 0;
 408         PublicEditor::TrackViewList::iterator i;
 409
 410         switch (ev->keyval) {
 411         case GDK_Escape:
 412                 name_entry.select_region (0,0);
 413                 controls_ebox.grab_focus ();
 414                 name_entry_changed ();
 415                 return true;
 416
 417         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 418          * generates a different ev->keyval, rather than setting
 419          * ev->state.
 420          */
 421         case GDK_ISO_Left_Tab:
 422         case GDK_Tab:
 423                 name_entry_changed ();
 424                 allviews = editor.get_valid_views (0);
 425                 if (allviews != 0) {
 426                         i = find (allviews->begin(), allviews->end(), this);
 427                         if (ev->keyval == GDK_Tab) {
 428                                 if (i != allviews->end()) {
 429                                         do {
 430                                                 if (++i == allviews->end()) { return true; }
 431                                         } while((*i)->hidden());
 432                                 }
 433                         } else {
 434                                 if (i != allviews->begin()) {
 435                                         do {
 436                                                 if (--i == allviews->begin()) { return true; }
 437                                         } while ((*i)->hidden());
 438                                 }
 439                         }
 440
 441
 442                         /* resize to show editable name display */
 443
 444                         if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 445                                 (*i)->set_height (hSmaller);
 446                         }
 447
 448                         (*i)->name_entry.grab_focus();
 449                 }
 450                 return true;
 451
 452         case GDK_Up:
 453         case GDK_Down:
 454                 name_entry_changed ();
 455                 return true;
 456
 457         default:
 458                 break;
 459         }
 460
 461 #ifdef TIMEOUT_NAME_EDIT
 462         /* adapt the timeout to reflect the user's typing speed */
 463
 464         guint32 name_entry_timeout;
 465
 466         if (last_name_entry_key_press_event) {
 467                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 468                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 469         } else {
 470                 /* start with a 1 second timeout */
 471                 name_entry_timeout = 1000;
 472         }
 473
 474         last_name_entry_key_press_event = ev->time;
 475
 476         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 477
 478         name_entry_key_timeout.disconnect();
 479         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 480 #endif
 481
 482         return false;
 483 }
 484
 485 bool
 486 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 487 {
 488         name_entry.select_region (0, -1);
 489         name_entry.set_name ("EditorActiveTrackNameDisplay");
 490         return false;
 491 }
 492
 493 bool
 494 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 495 {
 496         /* clean up */
 497
 498         last_name_entry_key_press_event = 0;
 499         name_entry_key_timeout.disconnect ();
 500         name_entry.set_name ("EditorTrackNameDisplay");
 501         name_entry.select_region (0,0);
 502
 503         /* do the real stuff */
 504
 505         name_entry_changed ();
 506
 507         return false;
 508 }
 509
 510 bool
 511 TimeAxisView::name_entry_key_timed_out ()
 512 {
 513         name_entry_activated();
 514         return false;
 515 }
 516
 517 void
 518 TimeAxisView::name_entry_activated ()
 519 {
 520         controls_ebox.grab_focus();
 521 }
 522
 523 void
 524 TimeAxisView::name_entry_changed ()
 525 {
 526 }
 527
 528 bool
 529 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 530 {
 531         if (ev->button == 3) {
 532                 return true;
 533         }
 534         return false;
 535 }
 536
 537 bool
 538 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 539 {
 540         if (ev->button == 3) {
 541                 popup_display_menu (ev->time);
 542                 return true;
 543         }
 544         return false;
 545 }
 546
 547 void
 548 TimeAxisView::conditionally_add_to_selection ()
 549 {
 550         Selection& s (editor.get_selection());
 551
 552         if (!s.selected (this)) {
 553                 editor.set_selected_track (*this, Selection::Set);
 554         }
 555 }
 556
 557
 558 void
 559 TimeAxisView::popup_display_menu (guint32 when)
 560 {
 561         if (display_menu == 0) {
 562                 build_display_menu ();
 563         }
 564
 565         conditionally_add_to_selection ();
 566         display_menu->popup (1, when);
 567 }
 568
 569 gint
 570 TimeAxisView::size_click (GdkEventButton *ev)
 571 {
 572         conditionally_add_to_selection ();
 573         popup_size_menu (ev->time);
 574         return TRUE;
 575 }
 576
 577 void
 578 TimeAxisView::popup_size_menu (guint32 when)
 579 {
 580         if (size_menu == 0) {
 581                 build_size_menu ();
 582         }
 583         size_menu->popup (1, when);
 584 }
 585
 586 void
 587 TimeAxisView::set_selected (bool yn)
 588 {
 589         if (yn == _selected) {
 590                 return;
 591         }
 592
 593         Selectable::set_selected (yn);
 594
 595         if (_selected) {
 596                 controls_ebox.set_name (controls_base_selected_name);
 597                 controls_hbox.set_name (controls_base_selected_name);
 598                 controls_vbox.set_name (controls_base_selected_name);
 599                 /* propagate any existing selection, if the mode is right */
 600
 601                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 602                         show_selection (editor.get_selection().time);
 603                 }
 604
 605         } else {
 606                 controls_ebox.set_name (controls_base_unselected_name);
 607                 controls_hbox.set_name (controls_base_unselected_name);
 608                 controls_vbox.set_name (controls_base_unselected_name);
 609                 hide_selection ();
 610
 611                 /* children will be set for the yn=true case. but when deselecting
 612                    the editor only has a list of top-level trackviews, so we
 613                    have to do this here.
 614                 */
 615
 616                 for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 617                         (*i)->set_selected (false);
 618                 }
 619         }
 620
 621         resizer.queue_draw ();
 622 }
 623
 624 void
 625 TimeAxisView::build_size_menu ()
 626 {
 627         using namespace Menu_Helpers;
 628
 629         size_menu = new Menu;
 630         size_menu->set_name ("ArdourContextMenu");
 631         MenuList& items = size_menu->items();
 632
 633         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 634         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 635         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 636         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 637         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 638         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 639 }
 640
 641 void
 642 TimeAxisView::build_display_menu ()
 643 {
 644         using namespace Menu_Helpers;
 645
 646         display_menu = new Menu;
 647         display_menu->set_name ("ArdourContextMenu");
 648
 649         // Just let implementing classes define what goes into the manu
 650 }
 651
 652 void
 653 TimeAxisView::set_samples_per_unit (double spu)
 654 {
 655         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 656                 (*i)->set_samples_per_unit (spu);
 657         }
 658
 659         AnalysisFeatureList::const_iterator i;
 660         list<ArdourCanvas::SimpleLine*>::iterator l;
 661
 662         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 663                 (*l)->property_x1() = editor.frame_to_pixel (*i);
 664                 (*l)->property_x2() = editor.frame_to_pixel (*i);
 665         }
 666 }
 667
 668 void
 669 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 670 {
 671         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 672                 (*i)->show_timestretch (start, end);
 673         }
 674 }
 675
 676 void
 677 TimeAxisView::hide_timestretch ()
 678 {
 679         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 680                 (*i)->hide_timestretch ();
 681         }
 682 }
 683
 684 void
 685 TimeAxisView::show_selection (TimeSelection& ts)
 686 {
 687         double x1;
 688         double x2;
 689         double y2;
 690         SelectionRect *rect;
 691
 692         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 693                 (*i)->show_selection (ts);
 694         }
 695
 696         if (canvas_item_visible (selection_group)) {
 697                 while (!used_selection_rects.empty()) {
 698                         free_selection_rects.push_front (used_selection_rects.front());
 699                         used_selection_rects.pop_front();
 700                         free_selection_rects.front()->rect->hide();
 701                         free_selection_rects.front()->start_trim->hide();
 702                         free_selection_rects.front()->end_trim->hide();
 703                 }
 704                 selection_group->hide();
 705         }
 706
 707         selection_group->show();
 708         selection_group->raise_to_top();
 709
 710         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 711                 nframes_t start, end, cnt;
 712
 713                 start = (*i).start;
 714                 end = (*i).end;
 715                 cnt = end - start + 1;
 716
 717                 rect = get_selection_rect ((*i).id);
 718
 719                 x1 = editor.frame_to_unit (start);
 720                 x2 = editor.frame_to_unit (start + cnt - 1);
 721                 y2 = current_height();
 722
 723                 rect->rect->property_x1() = x1;
 724                 rect->rect->property_y1() = 1.0;
 725                 rect->rect->property_x2() = x2;
 726                 rect->rect->property_y2() = y2;
 727
 728                 // trim boxes are at the top for selections
 729
 730                 if (x2 > x1) {
 731                         rect->start_trim->property_x1() = x1;
 732                         rect->start_trim->property_y1() = 1.0;
 733                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 734                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 735
 736                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 737                         rect->end_trim->property_y1() = 1.0;
 738                         rect->end_trim->property_x2() = x2;
 739                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 740
 741                         rect->start_trim->show();
 742                         rect->end_trim->show();
 743                 } else {
 744                         rect->start_trim->hide();
 745                         rect->end_trim->hide();
 746                 }
 747
 748                 rect->rect->show ();
 749                 used_selection_rects.push_back (rect);
 750         }
 751 }
 752
 753 void
 754 TimeAxisView::reshow_selection (TimeSelection& ts)
 755 {
 756         show_selection (ts);
 757
 758         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 759                 (*i)->show_selection (ts);
 760         }
 761 }
 762
 763 void
 764 TimeAxisView::hide_selection ()
 765 {
 766         if (canvas_item_visible (selection_group)) {
 767                 while (!used_selection_rects.empty()) {
 768                         free_selection_rects.push_front (used_selection_rects.front());
 769                         used_selection_rects.pop_front();
 770                         free_selection_rects.front()->rect->hide();
 771                         free_selection_rects.front()->start_trim->hide();
 772                         free_selection_rects.front()->end_trim->hide();
 773                 }
 774                 selection_group->hide();
 775         }
 776
 777         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
 778                 (*i)->hide_selection ();
 779         }
 780 }
 781
 782 void
 783 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 784 {
 785         /* find the selection rect this is for. we have the item corresponding to one
 786            of the trim handles.
 787          */
 788
 789         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 790                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 791
 792                         /* make one trim handle be "above" the other so that if they overlap,
 793                            the top one is the one last used.
 794                         */
 795
 796                         (*i)->rect->raise_to_top ();
 797                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 798                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 799
 800                         break;
 801                 }
 802         }
 803 }
 804
 805 SelectionRect *
 806 TimeAxisView::get_selection_rect (uint32_t id)
 807 {
 808         SelectionRect *rect;
 809
 810         /* check to see if we already have a visible rect for this particular selection ID */
 811
 812         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 813                 if ((*i)->id == id) {
 814                         return (*i);
 815                 }
 816         }
 817
 818         /* ditto for the free rect list */
 819
 820         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 821                 if ((*i)->id == id) {
 822                         SelectionRect* ret = (*i);
 823                         free_selection_rects.erase (i);
 824                         return ret;
 825                 }
 826         }
 827
 828         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 829
 830         if (free_selection_rects.empty()) {
 831
 832                 rect = new SelectionRect;
 833
 834                 rect->rect = new SimpleRect (*selection_group);
 835                 rect->rect->property_x1() = 0.0;
 836                 rect->rect->property_y1() = 0.0;
 837                 rect->rect->property_x2() = 0.0;
 838                 rect->rect->property_y2() = 0.0;
 839                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 840                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 841
 842                 rect->start_trim = new SimpleRect (*selection_group);
 843                 rect->start_trim->property_x1() = 0.0;
 844                 rect->start_trim->property_x2() = 0.0;
 845                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 846                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 847
 848                 rect->end_trim = new SimpleRect (*selection_group);
 849                 rect->end_trim->property_x1() = 0.0;
 850                 rect->end_trim->property_x2() = 0.0;
 851                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 852                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 853
 854                 free_selection_rects.push_front (rect);
 855
 856                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 857                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 858                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 859         }
 860
 861         rect = free_selection_rects.front();
 862         rect->id = id;
 863         free_selection_rects.pop_front();
 864         return rect;
 865 }
 866
 867 struct null_deleter { void operator()(void const *) const {} };
 868
 869 bool
 870 TimeAxisView::is_child (TimeAxisView* tav)
 871 {
 872         return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
 873 }
 874
 875 void
 876 TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
 877 {
 878         children.push_back (child);
 879 }
 880
 881 void
 882 TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
 883 {
 884         Children::iterator i;
 885
 886         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 887                 children.erase (i);
 888         }
 889 }
 890
 891 void
 892 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 893 {
 894         return;
 895 }
 896
 897 void
 898 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 899 {
 900         return;
 901 }
 902
 903 void
 904 TimeAxisView::add_ghost (RegionView* rv) {
 905         GhostRegion* gr = rv->add_ghost (*this);
 906
 907         if(gr) {
 908                 ghosts.push_back(gr);
 909                 gr->GoingAway.connect (mem_fun(*this, &TimeAxisView::erase_ghost));
 910         }
 911 }
 912
 913 void
 914 TimeAxisView::remove_ghost (RegionView* rv) {
 915         rv->remove_ghost_in (*this);
 916 }
 917
 918 void
 919 TimeAxisView::erase_ghost (GhostRegion* gr) {
 920         if(in_destructor) {
 921                 return;
 922         }
 923
 924         list<GhostRegion*>::iterator i;
 925
 926         for (i = ghosts.begin(); i != ghosts.end(); ++i) {
 927                 if ((*i) == gr) {
 928                         ghosts.erase (i);
 929                         break;
 930                 }
 931         }
 932 }
 933
 934 bool
 935 TimeAxisView::touched (double top, double bot)
 936 {
 937         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 938            y_position is the "origin" or "top" of the track.
 939          */
 940
 941         double mybot = y_position + current_height();
 942
 943         return ((y_position <= bot && y_position >= top) ||
 944                 ((mybot <= bot) && (top < mybot)) ||
 945                 (mybot >= bot && y_position < top));
 946 }
 947
 948 void
 949 TimeAxisView::set_parent (TimeAxisView& p)
 950 {
 951         parent = &p;
 952 }
 953
 954 bool
 955 TimeAxisView::has_state () const
 956 {
 957         return _has_state;
 958 }
 959
 960 TimeAxisView*
 961 TimeAxisView::get_parent_with_state ()
 962 {
 963         if (parent == 0) {
 964                 return 0;
 965         }
 966
 967         if (parent->has_state()) {
 968                 return parent;
 969         }
 970
 971         return parent->get_parent_with_state ();
 972 }
 973
 974
 975 XMLNode&
 976 TimeAxisView::get_state ()
 977 {
 978         XMLNode* node = new XMLNode ("TAV-" + name());
 979         char buf[32];
 980
 981         snprintf (buf, sizeof(buf), "%u", height);
 982         node->add_property ("height", buf);
 983         node->add_property ("marked_for_display", (_marked_for_display ? "1" : "0"));
 984         return *node;
 985 }
 986
 987 int
 988 TimeAxisView::set_state (const XMLNode& node)
 989 {
 990         const XMLProperty *prop;
 991
 992         if ((prop = node.property ("marked_for_display")) != 0) {
 993                 _marked_for_display = (prop->value() == "1");
 994         }
 995
 996         if ((prop = node.property ("track_height")) != 0) {
 997
 998                 if (prop->value() == "largest") {
 999                         set_height (hLargest);
1000                 } else if (prop->value() == "large") {
1001                         set_height (hLarge);
1002                 } else if (prop->value() == "larger") {
1003                         set_height (hLarger);
1004                 } else if (prop->value() == "normal") {
1005                         set_height (hNormal);
1006                 } else if (prop->value() == "smaller") {
1007                         set_height (hSmaller);
1008                 } else if (prop->value() == "small") {
1009                         set_height (hSmall);
1010                 } else {
1011                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
1012                         set_height (Normal);
1013                 }
1014
1015         } else if ((prop = node.property ("height")) != 0) {
1016
1017                 set_height (atoi (prop->value()));
1018
1019         } else {
1020
1021                 set_height (hNormal);
1022         }
1023
1024         return 0;
1025 }
1026
1027 void
1028 TimeAxisView::reset_height()
1029 {
1030         set_height (height);
1031
1032         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1033                 (*i)->set_height ((*i)->height);
1034         }
1035 }
1036
1037 void
1038 TimeAxisView::compute_controls_size_info ()
1039 {
1040         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
1041         Gtk::Table two_row_table (2, 8);
1042         Gtk::Table one_row_table (1, 8);
1043         Button* buttons[5];
1044         const int border_width = 2;
1045         const int extra_height = (2 * border_width) + 2 // 2 pixels for the controls frame
1046                 + 10; // resizer button
1047
1048         window.add (one_row_table);
1049
1050         one_row_table.set_border_width (border_width);
1051         one_row_table.set_row_spacings (0);
1052         one_row_table.set_col_spacings (0);
1053         one_row_table.set_homogeneous (true);
1054
1055         two_row_table.set_border_width (border_width);
1056         two_row_table.set_row_spacings (0);
1057         two_row_table.set_col_spacings (0);
1058         two_row_table.set_homogeneous (true);
1059
1060         for (int i = 0; i < 5; ++i) {
1061                 buttons[i] = manage (new Button (X_("f")));
1062                 buttons[i]->set_name ("TrackMuteButton");
1063         }
1064
1065         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1066
1067         one_row_table.show_all ();
1068         Gtk::Requisition req(one_row_table.size_request ());
1069
1070
1071         // height required to show 1 row of buttons
1072
1073         hSmaller = req.height + extra_height;
1074
1075         window.remove ();
1076         window.add (two_row_table);
1077
1078         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1079         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1080         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1081         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1082
1083         two_row_table.show_all ();
1084         req = two_row_table.size_request ();
1085
1086         // height required to show all normal buttons
1087
1088         hNormal = req.height + extra_height;
1089
1090         // these heights are all just larger than normal. no more
1091         // elements are visible (yet).
1092
1093         hLarger = hNormal + 50;
1094         hLarge = hNormal + 150;
1095         hLargest = hNormal + 250;
1096
1097         // height required to show track name
1098
1099         hSmall = 27;
1100 }
1101
1102 void
1103 TimeAxisView::show_name_label ()
1104 {
1105         if (!(name_packing & NameLabelPacked)) {
1106                 name_hbox.pack_start (name_label, true, true);
1107                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1108                 name_hbox.show ();
1109                 name_label.show ();
1110         }
1111 }
1112
1113 void
1114 TimeAxisView::show_name_entry ()
1115 {
1116         if (!(name_packing & NameEntryPacked)) {
1117                 name_hbox.pack_start (name_entry, true, true);
1118                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1119                 name_hbox.show ();
1120                 name_entry.show ();
1121         }
1122 }
1123
1124 void
1125 TimeAxisView::hide_name_label ()
1126 {
1127         if (name_packing & NameLabelPacked) {
1128                 name_hbox.remove (name_label);
1129                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1130         }
1131 }
1132
1133 void
1134 TimeAxisView::hide_name_entry ()
1135 {
1136         if (name_packing & NameEntryPacked) {
1137                 name_hbox.remove (name_entry);
1138                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1139         }
1140 }
1141
1142 void
1143 TimeAxisView::color_handler ()
1144 {
1145         for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
1146                 (*i)->set_colors();
1147         }
1148
1149         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1150
1151                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1152                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1153
1154                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1155                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1156
1157                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1158                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1159         }
1160
1161         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1162
1163                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1164                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1165
1166                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1167                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1168
1169                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1170                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1171         }
1172 }
1173
1174 TimeAxisView*
1175 TimeAxisView::covers_y_position (double y)
1176 {
1177         if (hidden()) {
1178                 return 0;
1179         }
1180
1181         if (y_position <= y && y < (y_position + height)) {
1182                 return this;
1183         }
1184
1185         for (Children::iterator i = children.begin(); i != children.end(); ++i) {
1186                 TimeAxisView* tv;
1187
1188                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1189                         return tv;
1190                 }
1191         }
1192
1193         return 0;
1194 }
1195
1196 void
1197 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1198 {
1199         analysis_features = pos;
1200         reshow_feature_lines ();
1201 }
1202
1203
1204 void
1205 TimeAxisView::hide_feature_lines ()
1206 {
1207         list<ArdourCanvas::SimpleLine*>::iterator l;
1208
1209         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1210                 (*l)->hide();
1211         }
1212 }
1213
1214 void
1215 TimeAxisView::reshow_feature_lines ()
1216 {
1217         while (feature_lines.size()< analysis_features.size()) {
1218                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1219                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1220                 feature_lines.push_back (l);
1221         }
1222
1223         while (feature_lines.size() > analysis_features.size()) {
1224                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1225                 feature_lines.pop_back ();
1226                 delete line;
1227         }
1228
1229         AnalysisFeatureList::const_iterator i;
1230         list<ArdourCanvas::SimpleLine*>::iterator l;
1231
1232         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1233                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1234                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1235                 (*l)->property_y1() = 0;
1236                 (*l)->property_y2() = current_height();
1237                 (*l)->show ();
1238         }
1239 }
1240
1241 bool
1242 TimeAxisView::resizer_button_press (GdkEventButton* event)
1243 {
1244         resize_drag_start = event->y_root;
1245         resize_idle_target = current_height();
1246         editor.start_resize_line_ops ();
1247         return true;
1248 }
1249
1250 bool
1251 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1252 {
1253         resize_drag_start = -1;
1254         editor.end_resize_line_ops ();
1255         return true;
1256 }
1257
1258 void
1259 TimeAxisView::idle_resize (uint32_t h)
1260 {
1261         set_height (h);
1262 }
1263
1264 bool
1265 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1266 {
1267         if (resize_drag_start < 0) {
1268                 return true;
1269         }
1270
1271         int32_t delta = (int32_t) floor (resize_drag_start - ev->y_root);
1272
1273         resize_idle_target = std::max (resize_idle_target - delta, (int) hSmall);
1274         editor.add_to_idle_resize (this, resize_idle_target);
1275
1276         resize_drag_start = ev->y_root;
1277
1278         return true;
1279 }
1280
1281 bool
1282 TimeAxisView::resizer_expose (GdkEventExpose* event)
1283 {
1284         int w, h, x, y, d;
1285         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1286         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1287         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1288
1289         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1290                              true,
1291                              event->area.x,
1292                              event->area.y,
1293                              event->area.width,
1294                              event->area.height);
1295
1296         win->get_geometry (x, y, w, h, d);
1297
1298         /* handle/line #1 */
1299
1300         win->draw_line (dark, 0, 0, w - 2, 0);
1301         win->draw_point (dark, 0, 1);
1302         win->draw_line (light, 1, 1, w - 1, 1);
1303         win->draw_point (light, w - 1, 0);
1304
1305         /* handle/line #2 */
1306
1307         win->draw_line (dark, 0, 4, w - 2, 4);
1308         win->draw_point (dark, 0, 5);
1309         win->draw_line (light, 1, 5, w - 1, 5);
1310         win->draw_point (light, w - 1, 4);
1311
1312         /* handle/line #3 */
1313
1314         win->draw_line (dark, 0, 8, w - 2, 8);
1315         win->draw_point (dark, 0, 9);
1316         win->draw_line (light, 1, 9, w - 1, 9);
1317         win->draw_point (light, w - 1, 8);
1318
1319         return true;
1320 }
1321