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     $Id$
  19 */
  20
  21 #include <cstdlib>
  22 #include <cmath>
  23 #include <algorithm>
  24 #include <string>
  25 #include <list>
  26
  27 #include <libgnomecanvasmm.h>
  28 #include <libgnomecanvasmm/canvas.h>
  29 #include <libgnomecanvasmm/item.h>
  30
  31 #include <pbd/error.h>
  32
  33 #include <gtkmm2ext/utils.h>
  34 #include <gtkmm2ext/selector.h>
  35 #include <gtkmm2ext/stop_signal.h>
  36
  37 #include <ardour/session.h>
  38 #include <ardour/utils.h>
  39 #include <ardour/ladspa_plugin.h>
  40 #include <ardour/insert.h>
  41 #include <ardour/location.h>
  42
  43 #include "ardour_ui.h"
  44 #include "public_editor.h"
  45 #include "time_axis_view.h"
  46 #include "simplerect.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
  82         canvas_display = new Group (*canvas.root(), 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
  99         /*
 100           Create the standard LHS Controls
 101           We create the top-level container and name add the name label here,
 102           subclasses can add to the layout as required
 103         */
 104
 105         name_entry.set_name ("EditorTrackNameDisplay");
 106         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 107         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 108         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 109         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 110         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 111         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 112         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 113
 114         name_label.set_name ("TrackLabel");
 115         name_label.set_alignment (0.0, 0.5);
 116
 117         /* typically, either name_label OR name_entry are visible,
 118            but not both. its up to derived classes to show/hide them as they
 119            wish.
 120         */
 121
 122         name_hbox.show ();
 123
 124         controls_table.set_border_width (2);
 125         controls_table.set_row_spacings (0);
 126         controls_table.set_col_spacings (0);
 127         controls_table.set_homogeneous (true);
 128
 129         controls_table.attach (name_hbox, 0, 4, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND);
 130         controls_table.show_all ();
 131         controls_table.set_no_show_all ();
 132
 133         controls_vbox.pack_start (controls_table, false, false);
 134         controls_vbox.show ();
 135
 136         controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 137         controls_ebox.add (controls_vbox);
 138         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 139         controls_ebox.set_flags (CAN_FOCUS);
 140
 141         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 142         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 143
 144         controls_lhs_pad.set_name ("TimeAxisViewControlsPadding");
 145         controls_hbox.pack_start (controls_lhs_pad,false,false);
 146         controls_hbox.pack_start (controls_ebox,true,true);
 147         controls_hbox.show ();
 148
 149         controls_frame.add (controls_hbox);
 150         controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 151         controls_frame.set_shadow_type (Gtk::SHADOW_OUT);
 152
 153         ColorChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 154 }
 155
 156 TimeAxisView::~TimeAxisView()
 157 {
 158         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 159                 delete *i;
 160         }
 161
 162         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 163                 delete (*i)->rect;
 164                 delete (*i)->start_trim;
 165                 delete (*i)->end_trim;
 166
 167         }
 168
 169         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 170                 delete (*i)->rect;
 171                 delete (*i)->start_trim;
 172                 delete (*i)->end_trim;
 173         }
 174
 175         if (selection_group) {
 176                 delete selection_group;
 177                 selection_group = 0;
 178         }
 179
 180         if (canvas_display) {
 181                 delete canvas_display;
 182                 canvas_display = 0;
 183         }
 184
 185         if (display_menu) {
 186                 delete display_menu;
 187                 display_menu = 0;
 188         }
 189 }
 190
 191 guint32
 192 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 193 {
 194         gdouble ix1, ix2, iy1, iy2;
 195         effective_height = 0;
 196
 197         if (control_parent) {
 198                 control_parent->reorder_child (controls_frame, nth);
 199         } else {
 200                 control_parent = parent;
 201                 parent->pack_start (controls_frame, false, false);
 202                 parent->reorder_child (controls_frame, nth);
 203         }
 204         controls_frame.show ();
 205         controls_ebox.show ();
 206
 207         /* the coordinates used here are in the system of the
 208            item's parent ...
 209         */
 210
 211         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 212         Group* pg = canvas_display->property_parent();
 213         pg->i2w (ix1, iy1);
 214
 215         if (iy1 < 0) {
 216                 iy1 = 0;
 217         }
 218
 219         canvas_display->move (0.0, y - iy1);
 220         canvas_display->show();/* XXX not necessary */
 221         y_position = y;
 222         order = nth;
 223         _hidden = false;
 224
 225         effective_height = height;
 226
 227         /* now show children */
 228
 229         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 230
 231                 if ((*i)->marked_for_display()) {
 232                         (*i)->canvas_display->show();
 233                 }
 234
 235                 if (canvas_item_visible ((*i)->canvas_display)) {
 236                         ++nth;
 237                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 238                 }
 239         }
 240
 241         return effective_height;
 242 }
 243
 244 bool
 245 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 246 {
 247         switch (ev->direction) {
 248         case GDK_SCROLL_UP:
 249                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
 250                         step_height (true);
 251                         return true;
 252                 }
 253                 break;
 254
 255         case GDK_SCROLL_DOWN:
 256                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::Shift)) {
 257                         step_height (false);
 258                         return true;
 259                 }
 260                 break;
 261
 262         default:
 263                 /* no handling for left/right, yet */
 264                 break;
 265         }
 266
 267         return false;
 268 }
 269
 270 bool
 271 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 272 {
 273         switch (ev->button) {
 274         case 1:
 275                 selection_click (ev);
 276                 break;
 277
 278         case 3:
 279                 popup_display_menu (ev->time);
 280                 break;
 281         }
 282
 283         return true;
 284 }
 285
 286 void
 287 TimeAxisView::selection_click (GdkEventButton* ev)
 288 {
 289         Selection::Operation op = Keyboard::selection_type (ev->state);
 290         editor.set_selected_track (*this, op, false);
 291 }
 292
 293 void
 294 TimeAxisView::hide ()
 295 {
 296         if (_hidden) {
 297                 return;
 298         }
 299
 300         canvas_display->hide();
 301         controls_frame.hide ();
 302
 303         if (control_parent) {
 304                 control_parent->remove (controls_frame);
 305                 control_parent = 0;
 306         }
 307
 308         y_position = -1;
 309         _hidden = true;
 310
 311         /* now hide children */
 312
 313         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 314                 (*i)->hide ();
 315         }
 316
 317         Hiding ();
 318 }
 319
 320 void
 321 TimeAxisView::step_height (bool bigger)
 322 {
 323
 324        if (height == hLargest) {
 325                if (!bigger) set_height (Large);
 326                return;
 327        }
 328        if (height == hLarge) {
 329                if (bigger) set_height (Largest);
 330                 else set_height (Larger);
 331                return;
 332        }
 333        if (height == hLarger) {
 334                 if (bigger) set_height (Large);
 335                 else set_height (Normal);
 336                return;
 337        }
 338        if (height == hNormal) {
 339                 if (bigger) set_height (Larger);
 340                 else set_height (Smaller);
 341                return;
 342        }
 343        if (height == hSmaller) {
 344                 if (bigger) set_height (Normal);
 345                 else set_height (Small);
 346                return;
 347        }
 348        if (height == hSmall) {
 349                 if (bigger) set_height (Smaller);
 350                return;
 351        }
 352 }
 353
 354 void
 355 TimeAxisView::set_height (TrackHeight h)
 356 {
 357         height_style = h;
 358         set_height_pixels (height_to_pixels (h));
 359 }
 360
 361 void
 362 TimeAxisView::set_height_pixels (uint32_t h)
 363 {
 364         height = h;
 365         controls_frame.set_size_request (-1, height);
 366
 367         if (canvas_item_visible (selection_group)) {
 368                 /* resize the selection rect */
 369                 show_selection (editor.get_selection().time);
 370         }
 371 }
 372
 373 bool
 374 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 375 {
 376         switch (ev->keyval) {
 377         case GDK_Tab:
 378         case GDK_Up:
 379         case GDK_Down:
 380                 name_entry_changed ();
 381                 return true;
 382
 383         default:
 384                 break;
 385         }
 386
 387 #ifdef TIMEOUT_NAME_EDIT
 388         /* adapt the timeout to reflect the user's typing speed */
 389
 390         guint32 name_entry_timeout;
 391
 392         if (last_name_entry_key_press_event) {
 393                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 394                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 395         } else {
 396                 /* start with a 1 second timeout */
 397                 name_entry_timeout = 1000;
 398         }
 399
 400         last_name_entry_key_press_event = ev->time;
 401
 402         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 403
 404         name_entry_key_timeout.disconnect();
 405         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 406 #endif
 407
 408         return false;
 409 }
 410
 411 bool
 412 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 413 {
 414         name_entry.select_region (0, -1);
 415         name_entry.set_name ("EditorActiveTrackNameDisplay");
 416         return false;
 417 }
 418
 419 bool
 420 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 421 {
 422         /* clean up */
 423
 424         last_name_entry_key_press_event = 0;
 425         name_entry_key_timeout.disconnect ();
 426         name_entry.set_name ("EditorTrackNameDisplay");
 427
 428         /* do the real stuff */
 429
 430         name_entry_changed ();
 431
 432         return false;
 433 }
 434
 435 bool
 436 TimeAxisView::name_entry_key_timed_out ()
 437 {
 438         name_entry_activated();
 439         return false;
 440 }
 441
 442 void
 443 TimeAxisView::name_entry_activated ()
 444 {
 445         controls_ebox.grab_focus();
 446 }
 447
 448 void
 449 TimeAxisView::name_entry_changed ()
 450 {
 451 }
 452
 453 bool
 454 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 455 {
 456         if (ev->button == 3) {
 457                 return true;
 458         }
 459         return false;
 460 }
 461
 462 bool
 463 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 464 {
 465         if (ev->button == 3) {
 466                 popup_display_menu (ev->time);
 467                 return true;
 468         }
 469         return false;
 470 }
 471
 472 void
 473 TimeAxisView::popup_display_menu (guint32 when)
 474 {
 475         if (display_menu == 0) {
 476                 build_display_menu ();
 477         }
 478         editor.set_selected_track (*this, Selection::Add);
 479         display_menu->popup (1, when);
 480 }
 481
 482 gint
 483 TimeAxisView::size_click (GdkEventButton *ev)
 484 {
 485         editor.set_selected_track (*this, Selection::Add);
 486         popup_size_menu (ev->time);
 487         return TRUE;
 488 }
 489
 490 void
 491 TimeAxisView::popup_size_menu (guint32 when)
 492 {
 493         if (size_menu == 0) {
 494                 build_size_menu ();
 495         }
 496         size_menu->popup (1, when);
 497 }
 498
 499 void
 500 TimeAxisView::set_selected (bool yn)
 501 {
 502         AxisView::set_selected (yn);
 503
 504         if (_selected) {
 505                 controls_ebox.set_name (controls_base_selected_name);
 506                 controls_frame.set_name (controls_base_selected_name);
 507
 508                 /* propagate any existing selection, if the mode is right */
 509
 510                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 511                         show_selection (editor.get_selection().time);
 512                 }
 513
 514         } else {
 515                 controls_ebox.set_name (controls_base_unselected_name);
 516                 controls_frame.set_name (controls_base_unselected_name);
 517
 518                 hide_selection ();
 519
 520                 /* children will be set for the yn=true case. but when deselecting
 521                    the editor only has a list of top-level trackviews, so we
 522                    have to do this here.
 523                 */
 524
 525                 for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 526                         (*i)->set_selected (false);
 527                 }
 528
 529
 530         }
 531 }
 532
 533 void
 534 TimeAxisView::build_size_menu ()
 535 {
 536         using namespace Menu_Helpers;
 537
 538         size_menu = new Menu;
 539         size_menu->set_name ("ArdourContextMenu");
 540         MenuList& items = size_menu->items();
 541
 542         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_height), Largest)));
 543         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_height), Large)));
 544         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_height), Larger)));
 545         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_height), Normal)));
 546         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_height),Smaller)));
 547         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_height), Small)));
 548 }
 549
 550 void
 551 TimeAxisView::build_display_menu ()
 552 {
 553         using namespace Menu_Helpers;
 554
 555         display_menu = new Menu;
 556         display_menu->set_name ("ArdourContextMenu");
 557
 558         // Just let implementing classes define what goes into the manu
 559 }
 560
 561 void
 562 TimeAxisView::set_samples_per_unit (double spu)
 563 {
 564         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 565                 (*i)->set_samples_per_unit (spu);
 566         }
 567 }
 568
 569 void
 570 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 571 {
 572         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 573                 (*i)->show_timestretch (start, end);
 574         }
 575 }
 576
 577 void
 578 TimeAxisView::hide_timestretch ()
 579 {
 580         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 581                 (*i)->hide_timestretch ();
 582         }
 583 }
 584
 585 void
 586 TimeAxisView::show_selection (TimeSelection& ts)
 587 {
 588         double x1;
 589         double x2;
 590         double y2;
 591         SelectionRect *rect;
 592
 593         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 594                 (*i)->show_selection (ts);
 595         }
 596
 597         if (canvas_item_visible (selection_group)) {
 598                 while (!used_selection_rects.empty()) {
 599                         free_selection_rects.push_front (used_selection_rects.front());
 600                         used_selection_rects.pop_front();
 601                         free_selection_rects.front()->rect->hide();
 602                         free_selection_rects.front()->start_trim->hide();
 603                         free_selection_rects.front()->end_trim->hide();
 604                 }
 605                 selection_group->hide();
 606         }
 607
 608         selection_group->show();
 609         selection_group->raise_to_top();
 610
 611         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 612                 nframes_t start, end, cnt;
 613
 614                 start = (*i).start;
 615                 end = (*i).end;
 616                 cnt = end - start + 1;
 617
 618                 rect = get_selection_rect ((*i).id);
 619
 620                 x1 = editor.frame_to_unit (start);
 621                 x2 = editor.frame_to_unit (start + cnt - 1);
 622                 y2 = height;
 623
 624                 rect->rect->property_x1() = x1;
 625                 rect->rect->property_y1() = 1.0;
 626                 rect->rect->property_x2() = x2;
 627                 rect->rect->property_y2() = y2;
 628
 629                 // trim boxes are at the top for selections
 630
 631                 if (x2 > x1) {
 632                         rect->start_trim->property_x1() = x1;
 633                         rect->start_trim->property_y1() = 1.0;
 634                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 635                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 636
 637                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 638                         rect->end_trim->property_y1() = 1.0;
 639                         rect->end_trim->property_x2() = x2;
 640                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 641
 642                         rect->start_trim->show();
 643                         rect->end_trim->show();
 644                 } else {
 645                         rect->start_trim->hide();
 646                         rect->end_trim->hide();
 647                 }
 648
 649                 rect->rect->show ();
 650                 used_selection_rects.push_back (rect);
 651         }
 652 }
 653
 654 void
 655 TimeAxisView::reshow_selection (TimeSelection& ts)
 656 {
 657         show_selection (ts);
 658
 659         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 660                 (*i)->show_selection (ts);
 661         }
 662 }
 663
 664 void
 665 TimeAxisView::hide_selection ()
 666 {
 667         if (canvas_item_visible (selection_group)) {
 668                 while (!used_selection_rects.empty()) {
 669                         free_selection_rects.push_front (used_selection_rects.front());
 670                         used_selection_rects.pop_front();
 671                         free_selection_rects.front()->rect->hide();
 672                         free_selection_rects.front()->start_trim->hide();
 673                         free_selection_rects.front()->end_trim->hide();
 674                 }
 675                 selection_group->hide();
 676         }
 677
 678         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 679                 (*i)->hide_selection ();
 680         }
 681 }
 682
 683 void
 684 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 685 {
 686         /* find the selection rect this is for. we have the item corresponding to one
 687            of the trim handles.
 688          */
 689
 690         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 691                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 692
 693                         /* make one trim handle be "above" the other so that if they overlap,
 694                            the top one is the one last used.
 695                         */
 696
 697                         (*i)->rect->raise_to_top ();
 698                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 699                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 700
 701                         break;
 702                 }
 703         }
 704 }
 705
 706 SelectionRect *
 707 TimeAxisView::get_selection_rect (uint32_t id)
 708 {
 709         SelectionRect *rect;
 710
 711         /* check to see if we already have a visible rect for this particular selection ID */
 712
 713         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 714                 if ((*i)->id == id) {
 715                         return (*i);
 716                 }
 717         }
 718
 719         /* ditto for the free rect list */
 720
 721         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 722                 if ((*i)->id == id) {
 723                         free_selection_rects.erase (i);
 724                         return (*i);
 725                 }
 726         }
 727
 728         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 729
 730         if (free_selection_rects.empty()) {
 731
 732                 rect = new SelectionRect;
 733
 734                 rect->rect = new SimpleRect (*selection_group);
 735                 rect->rect->property_x1() = 0.0;
 736                 rect->rect->property_y1() = 0.0;
 737                 rect->rect->property_x2() = 0.0;
 738                 rect->rect->property_y2() = 0.0;
 739                 rect->rect->property_fill_color_rgba() = color_map[cSelectionRectFill];
 740                 rect->rect->property_outline_color_rgba() = color_map[cSelectionRectOutline];
 741
 742                 rect->start_trim = new SimpleRect (*selection_group);
 743                 rect->start_trim->property_x1() = 0.0;
 744                 rect->start_trim->property_x2() = 0.0;
 745                 rect->start_trim->property_fill_color_rgba() = color_map[cSelectionStartFill];
 746                 rect->start_trim->property_outline_color_rgba() = color_map[cSelectionStartOutline];
 747
 748                 rect->end_trim = new SimpleRect (*selection_group);
 749                 rect->end_trim->property_x1() = 0.0;
 750                 rect->end_trim->property_x2() = 0.0;
 751                 rect->end_trim->property_fill_color_rgba() = color_map[cSelectionEndFill];
 752                 rect->end_trim->property_outline_color_rgba() = color_map[cSelectionEndOutline];
 753
 754                 free_selection_rects.push_front (rect);
 755
 756                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 757                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 758                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 759         }
 760
 761         rect = free_selection_rects.front();
 762         rect->id = id;
 763         free_selection_rects.pop_front();
 764         return rect;
 765 }
 766
 767 bool
 768 TimeAxisView::is_child (TimeAxisView* tav)
 769 {
 770         return find (children.begin(), children.end(), tav) != children.end();
 771 }
 772
 773 void
 774 TimeAxisView::add_child (TimeAxisView* child)
 775 {
 776         children.push_back (child);
 777 }
 778
 779 void
 780 TimeAxisView::remove_child (TimeAxisView* child)
 781 {
 782         vector<TimeAxisView*>::iterator i;
 783
 784         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 785                 children.erase (i);
 786         }
 787 }
 788
 789 void
 790 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 791 {
 792         return;
 793 }
 794
 795 void
 796 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 797 {
 798         return;
 799 }
 800
 801 bool
 802 TimeAxisView::touched (double top, double bot)
 803 {
 804         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 805            y_position is the "origin" or "top" of the track.
 806          */
 807
 808         double mybot = y_position + height; // XXX need to include Editor::track_spacing;
 809
 810         return ((y_position <= bot && y_position >= top) ||
 811                 ((mybot <= bot) && (top < mybot)) ||
 812                 (mybot >= bot && y_position < top));
 813 }
 814
 815 void
 816 TimeAxisView::set_parent (TimeAxisView& p)
 817 {
 818         parent = &p;
 819 }
 820
 821 bool
 822 TimeAxisView::has_state () const
 823 {
 824         return _has_state;
 825 }
 826
 827 TimeAxisView*
 828 TimeAxisView::get_parent_with_state ()
 829 {
 830         if (parent == 0) {
 831                 return 0;
 832         }
 833
 834         if (parent->has_state()) {
 835                 return parent;
 836         }
 837
 838         return parent->get_parent_with_state ();
 839 }
 840
 841 void
 842 TimeAxisView::set_state (const XMLNode& node)
 843 {
 844         const XMLProperty *prop;
 845
 846         if ((prop = node.property ("track_height")) != 0) {
 847
 848                 if (prop->value() == "largest") {
 849                         set_height (Largest);
 850                 } else if (prop->value() == "large") {
 851                         set_height (Large);
 852                 } else if (prop->value() == "larger") {
 853                         set_height (Larger);
 854                 } else if (prop->value() == "normal") {
 855                         set_height (Normal);
 856                 } else if (prop->value() == "smaller") {
 857                         set_height (Smaller);
 858                 } else if (prop->value() == "small") {
 859                         set_height (Small);
 860                 } else {
 861                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 862                         set_height (Normal);
 863                 }
 864
 865         } else {
 866                 set_height (Normal);
 867         }
 868 }
 869
 870 void
 871 TimeAxisView::reset_height()
 872 {
 873         set_height_pixels (height);
 874
 875         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 876                 (*i)->set_height_pixels ((TrackHeight)(*i)->height);
 877         }
 878 }
 879
 880 uint32_t
 881 TimeAxisView::height_to_pixels (TrackHeight h)
 882 {
 883         switch (h) {
 884         case Largest:
 885                 return hLargest;
 886         case Large:
 887                 return hLarge;
 888         case Larger:
 889                 return hLarger;
 890         case Normal:
 891                 return hNormal;
 892         case Smaller:
 893                 return hSmaller;
 894         case Small:
 895                 return hSmall;
 896         }
 897
 898         // what is wrong with gcc ?
 899
 900         return hNormal;
 901 }
 902
 903 void
 904 TimeAxisView::compute_controls_size_info ()
 905 {
 906         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
 907         Gtk::Table two_row_table (2, 8);
 908         Gtk::Table one_row_table (1, 8);
 909         Button* buttons[5];
 910         const int border_width = 2;
 911         const int extra_height = (2 * border_width) + 2; // 2 pixels for the controls frame
 912
 913         window.add (one_row_table);
 914
 915         one_row_table.set_border_width (border_width);
 916         one_row_table.set_row_spacings (0);
 917         one_row_table.set_col_spacings (0);
 918         one_row_table.set_homogeneous (true);
 919
 920         two_row_table.set_border_width (border_width);
 921         two_row_table.set_row_spacings (0);
 922         two_row_table.set_col_spacings (0);
 923         two_row_table.set_homogeneous (true);
 924
 925         for (int i = 0; i < 5; ++i) {
 926                 buttons[i] = manage (new Button (X_("f")));
 927                 buttons[i]->set_name ("TrackMuteButton");
 928         }
 929
 930         Gtk::Requisition req;
 931
 932         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 933
 934         one_row_table.show_all ();
 935         one_row_table.size_request (req);
 936
 937
 938         // height required to show 1 row of buttons
 939
 940         hSmaller = req.height + extra_height;
 941
 942         window.remove ();
 943         window.add (two_row_table);
 944
 945         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 946         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 947         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 948         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
 949
 950         two_row_table.show_all ();
 951         two_row_table.size_request (req);
 952
 953         // height required to show all normal buttons
 954
 955         hNormal = req.height + extra_height;
 956
 957         // these heights are all just larger than normal. no more
 958         // elements are visible (yet).
 959
 960         hLarger = hNormal + 50;
 961         hLarge = hNormal + 150;
 962         hLargest = hNormal + 250;
 963
 964         // height required to show track name
 965
 966         hSmall = 27;
 967 }
 968
 969 void
 970 TimeAxisView::show_name_label ()
 971 {
 972         if (!(name_packing & NameLabelPacked)) {
 973                 name_hbox.pack_start (name_label, true, true);
 974                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
 975                 name_hbox.show ();
 976                 name_label.show ();
 977         }
 978 }
 979
 980 void
 981 TimeAxisView::show_name_entry ()
 982 {
 983         if (!(name_packing & NameEntryPacked)) {
 984                 name_hbox.pack_start (name_entry, true, true);
 985                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
 986                 name_hbox.show ();
 987                 name_entry.show ();
 988         }
 989 }
 990
 991 void
 992 TimeAxisView::hide_name_label ()
 993 {
 994         if (name_packing & NameLabelPacked) {
 995                 name_hbox.remove (name_label);
 996                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
 997         }
 998 }
 999
1000 void
1001 TimeAxisView::hide_name_entry ()
1002 {
1003         if (name_packing & NameEntryPacked) {
1004                 name_hbox.remove (name_entry);
1005                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1006         }
1007 }
1008
1009 void
1010 TimeAxisView::color_handler (ColorID id, uint32_t val)
1011 {
1012         switch (id) {
1013         case cSelectionRectFill:
1014                 break;
1015         case cSelectionRectOutline:
1016                 break;
1017         case cSelectionStartFill:
1018                 break;
1019         case cSelectionStartOutline:
1020                 break;
1021         case cSelectionEndFill:
1022                 break;
1023         case cSelectionEndOutline:
1024                 break;
1025         default:
1026                 break;
1027         }
1028 }