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