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