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