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