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