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