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