gtk2_ardour/time_axis_view.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include <cstdlib>
  21 #include <cmath>
  22 #include <algorithm>
  23 #include <string>
  24 #include <list>
  25
  26 #include <libgnomecanvasmm.h>
  27 #include <libgnomecanvasmm/canvas.h>
  28 #include <libgnomecanvasmm/item.h>
  29
  30 #include <pbd/error.h>
  31
  32 #include <gtkmm2ext/utils.h>
  33 #include <gtkmm2ext/selector.h>
  34 #include <gtkmm2ext/stop_signal.h>
  35
  36 #include <ardour/session.h>
  37 #include <ardour/utils.h>
  38 #include <ardour/ladspa_plugin.h>
  39 #include <ardour/insert.h>
  40 #include <ardour/location.h>
  41
  42 #include "ardour_ui.h"
  43 #include "public_editor.h"
  44 #include "time_axis_view.h"
  45 #include "simplerect.h"
  46 #include "simpleline.h"
  47 #include "selection.h"
  48 #include "keyboard.h"
  49 #include "rgb_macros.h"
  50 #include "utils.h"
  51
  52 #include "i18n.h"
  53
  54 using namespace Gtk;
  55 using namespace Gdk;
  56 using namespace sigc;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Editing;
  60 using namespace ArdourCanvas;
  61
  62 const double trim_handle_size = 6.0; /* pixels */
  63
  64 uint32_t TimeAxisView::hLargest = 0;
  65 uint32_t TimeAxisView::hLarge = 0;
  66 uint32_t TimeAxisView::hLarger = 0;
  67 uint32_t TimeAxisView::hNormal = 0;
  68 uint32_t TimeAxisView::hSmaller = 0;
  69 uint32_t TimeAxisView::hSmall = 0;
  70 bool TimeAxisView::need_size_info = true;
  71
  72 TimeAxisView::TimeAxisView (ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* rent, Canvas& canvas)
  73         : AxisView (sess),
  74           editor (ed),
  75           controls_table (2, 8)
  76 {
  77         if (need_size_info) {
  78                 compute_controls_size_info ();
  79                 need_size_info = false;
  80         }
  81
  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         resize_drag_start = -1;
  99
 100         /*
 101           Create the standard LHS Controls
 102           We create the top-level container and name add the name label here,
 103           subclasses can add to the layout as required
 104         */
 105
 106         name_entry.set_name ("EditorTrackNameDisplay");
 107         name_entry.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_release));
 108         name_entry.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::name_entry_button_press));
 109         name_entry.signal_key_release_event().connect (mem_fun (*this, &TimeAxisView::name_entry_key_release));
 110         name_entry.signal_activate().connect (mem_fun(*this, &TimeAxisView::name_entry_activated));
 111         name_entry.signal_focus_in_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_in));
 112         name_entry.signal_focus_out_event().connect (mem_fun (*this, &TimeAxisView::name_entry_focus_out));
 113         Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
 114
 115         name_label.set_name ("TrackLabel");
 116         name_label.set_alignment (0.0, 0.5);
 117
 118         /* typically, either name_label OR name_entry are visible,
 119            but not both. its up to derived classes to show/hide them as they
 120            wish.
 121         */
 122
 123         name_hbox.show ();
 124
 125         controls_table.set_border_width (2);
 126         controls_table.set_row_spacings (0);
 127         controls_table.set_col_spacings (0);
 128         controls_table.set_homogeneous (true);
 129
 130         controls_table.attach (name_hbox, 0, 5, 0, 1,  Gtk::FILL|Gtk::EXPAND,  Gtk::FILL|Gtk::EXPAND, 3, 0);
 131         controls_table.show_all ();
 132         controls_table.set_no_show_all ();
 133
 134         resizer.set_size_request (10, 10);
 135         resizer.set_name ("ResizeHandle");
 136         resizer.signal_expose_event().connect (mem_fun (*this, &TimeAxisView::resizer_expose));
 137         resizer.signal_button_press_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_press));
 138         resizer.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::resizer_button_release));
 139         resizer.signal_motion_notify_event().connect (mem_fun (*this, &TimeAxisView::resizer_motion));
 140         resizer.set_events (Gdk::BUTTON_PRESS_MASK|
 141                             Gdk::BUTTON_RELEASE_MASK|
 142                             Gdk::POINTER_MOTION_MASK|
 143                             Gdk::SCROLL_MASK);
 144
 145         resizer_box.pack_start (resizer, false, false);
 146         resizer.show ();
 147         resizer_box.show();
 148
 149         controls_vbox.pack_start (controls_table, false, false);
 150         controls_vbox.pack_end (resizer_box, false, true);
 151         controls_vbox.show ();
 152
 153         controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
 154         controls_ebox.add (controls_vbox);
 155         controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
 156         controls_ebox.set_flags (CAN_FOCUS);
 157
 158         controls_ebox.signal_button_release_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
 159         controls_ebox.signal_scroll_event().connect (mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
 160
 161         controls_hbox.pack_start (controls_ebox,true,true);
 162         controls_hbox.show ();
 163
 164         controls_frame.add (controls_hbox);
 165         controls_frame.set_name ("TimeAxisViewControlsBaseUnselected");
 166         controls_vbox.set_name ("TimeAxisViewControlsBaseUnselected");
 167         controls_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
 168
 169         ColorsChanged.connect (mem_fun (*this, &TimeAxisView::color_handler));
 170 }
 171
 172 TimeAxisView::~TimeAxisView()
 173 {
 174         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 175                 delete *i;
 176         }
 177
 178         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 179                 delete (*i)->rect;
 180                 delete (*i)->start_trim;
 181                 delete (*i)->end_trim;
 182
 183         }
 184
 185         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 186                 delete (*i)->rect;
 187                 delete (*i)->start_trim;
 188                 delete (*i)->end_trim;
 189         }
 190
 191         for (list<SimpleLine*>::iterator i = feature_lines.begin(); i != feature_lines.end(); ++i) {
 192                 delete (*i);
 193         }
 194
 195         if (selection_group) {
 196                 delete selection_group;
 197                 selection_group = 0;
 198         }
 199
 200         if (canvas_display) {
 201                 delete canvas_display;
 202                 canvas_display = 0;
 203         }
 204
 205         if (display_menu) {
 206                 delete display_menu;
 207                 display_menu = 0;
 208         }
 209 }
 210
 211 guint32
 212 TimeAxisView::show_at (double y, int& nth, VBox *parent)
 213 {
 214         gdouble ix1, ix2, iy1, iy2;
 215         effective_height = 0;
 216
 217         if (control_parent) {
 218                 control_parent->reorder_child (controls_frame, nth);
 219         } else {
 220                 control_parent = parent;
 221                 parent->pack_start (controls_frame, false, false);
 222                 parent->reorder_child (controls_frame, nth);
 223         }
 224         controls_frame.show ();
 225         controls_ebox.show ();
 226
 227         /* the coordinates used here are in the system of the
 228            item's parent ...
 229         */
 230
 231         canvas_display->get_bounds (ix1, iy1, ix2, iy2);
 232         Group* pg = canvas_display->property_parent();
 233         pg->i2w (ix1, iy1);
 234
 235         if (iy1 < 0) {
 236                 iy1 = 0;
 237         }
 238
 239         canvas_display->move (0.0, y - iy1);
 240         canvas_display->show();/* XXX not necessary */
 241         y_position = y;
 242         order = nth;
 243         _hidden = false;
 244
 245         /* height in pixels depends on _order, so update it now we've changed _order */
 246         set_height (height);
 247
 248         effective_height = current_height();
 249
 250         /* now show children */
 251
 252         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 253
 254                 if ((*i)->marked_for_display()) {
 255                         (*i)->canvas_display->show();
 256                 }
 257
 258                 if (canvas_item_visible ((*i)->canvas_display)) {
 259                         ++nth;
 260                         effective_height += (*i)->show_at (y + effective_height, nth, parent);
 261                 }
 262         }
 263
 264         return effective_height;
 265 }
 266
 267 bool
 268 TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
 269 {
 270         switch (ev->direction) {
 271         case GDK_SCROLL_UP:
 272                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 273                         step_height (true);
 274                         return true;
 275                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 276                         editor.scroll_tracks_up_line();
 277                         return true;
 278                 }
 279                 break;
 280
 281         case GDK_SCROLL_DOWN:
 282                 if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
 283                         step_height (false);
 284                         return true;
 285                 } else if (Keyboard::no_modifiers_active (ev->state)) {
 286                         editor.scroll_tracks_down_line();
 287                         return true;
 288                 }
 289                 break;
 290
 291         default:
 292                 /* no handling for left/right, yet */
 293                 break;
 294         }
 295
 296         return false;
 297 }
 298
 299 bool
 300 TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
 301 {
 302         switch (ev->button) {
 303         case 1:
 304                 selection_click (ev);
 305                 break;
 306
 307         case 3:
 308                 popup_display_menu (ev->time);
 309                 break;
 310         }
 311
 312         return true;
 313 }
 314
 315 void
 316 TimeAxisView::selection_click (GdkEventButton* ev)
 317 {
 318         Selection::Operation op = Keyboard::selection_type (ev->state);
 319         editor.set_selected_track (*this, op, false);
 320 }
 321
 322 void
 323 TimeAxisView::hide ()
 324 {
 325         if (_hidden) {
 326                 return;
 327         }
 328
 329         canvas_display->hide();
 330         controls_frame.hide ();
 331
 332         if (control_parent) {
 333                 control_parent->remove (controls_frame);
 334                 control_parent = 0;
 335         }
 336
 337         y_position = -1;
 338         _hidden = true;
 339
 340         /* now hide children */
 341
 342         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 343                 (*i)->hide ();
 344         }
 345
 346         Hiding ();
 347 }
 348
 349 void
 350 TimeAxisView::step_height (bool bigger)
 351 {
 352         static const uint32_t step = 20;
 353
 354         if (bigger) {
 355                 set_height (height + step);
 356         } else {
 357                 if (height > step) {
 358                         set_height (std::max (height - step, hSmall));
 359                 } else if (height != hSmall) {
 360                         set_height (hSmall);
 361                 }
 362         }
 363 }
 364
 365 void
 366 TimeAxisView::set_heights (uint32_t h)
 367 {
 368         TrackSelection& ts (editor.get_selection().tracks);
 369
 370         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
 371                 (*i)->set_height (h);
 372         }
 373 }
 374
 375 void
 376 TimeAxisView::set_height(uint32_t h)
 377 {
 378         height = h;
 379
 380         controls_frame.set_size_request (-1, current_height() + ((order == 0) ? 1 : 0));
 381
 382         if (canvas_item_visible (selection_group)) {
 383                 /* resize the selection rect */
 384                 show_selection (editor.get_selection().time);
 385         }
 386
 387         reshow_feature_lines ();
 388 }
 389
 390 bool
 391 TimeAxisView::name_entry_key_release (GdkEventKey* ev)
 392 {
 393         PublicEditor::TrackViewList *allviews = 0;
 394         PublicEditor::TrackViewList::iterator i;
 395
 396         switch (ev->keyval) {
 397         case GDK_Escape:
 398                 name_entry.select_region (0,0);
 399                 controls_ebox.grab_focus ();
 400                 name_entry_changed ();
 401                 return true;
 402
 403         /* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
 404          * generates a different ev->keyval, rather than setting
 405          * ev->state.
 406          */
 407         case GDK_ISO_Left_Tab:
 408         case GDK_Tab:
 409                 name_entry_changed ();
 410                 allviews = editor.get_valid_views (0);
 411                 if (allviews != 0) {
 412                         i = find (allviews->begin(), allviews->end(), this);
 413                         if (ev->keyval == GDK_Tab) {
 414                                 if (i != allviews->end()) {
 415                                         do {
 416                                                 if (++i == allviews->end()) { return true; }
 417                                         } while((*i)->hidden());
 418                                 }
 419                         } else {
 420                                 if (i != allviews->begin()) {
 421                                         do {
 422                                                 if (--i == allviews->begin()) { return true; }
 423                                         } while ((*i)->hidden());
 424                                 }
 425                         }
 426
 427
 428                         /* resize to show editable name display */
 429
 430                         if ((*i)->current_height() >= hSmall && (*i)->current_height() < hNormal) {
 431                                 (*i)->set_height (hSmaller);
 432                         }
 433
 434                         (*i)->name_entry.grab_focus();
 435                 }
 436                 return true;
 437
 438         case GDK_Up:
 439         case GDK_Down:
 440                 name_entry_changed ();
 441                 return true;
 442
 443         default:
 444                 break;
 445         }
 446
 447 #ifdef TIMEOUT_NAME_EDIT
 448         /* adapt the timeout to reflect the user's typing speed */
 449
 450         guint32 name_entry_timeout;
 451
 452         if (last_name_entry_key_press_event) {
 453                 /* timeout is 1/2 second or 5 times their current inter-char typing speed */
 454                 name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
 455         } else {
 456                 /* start with a 1 second timeout */
 457                 name_entry_timeout = 1000;
 458         }
 459
 460         last_name_entry_key_press_event = ev->time;
 461
 462         /* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
 463
 464         name_entry_key_timeout.disconnect();
 465         name_entry_key_timeout = Glib::signal_timeout().connect (mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
 466 #endif
 467
 468         return false;
 469 }
 470
 471 bool
 472 TimeAxisView::name_entry_focus_in (GdkEventFocus* ev)
 473 {
 474         name_entry.select_region (0, -1);
 475         name_entry.set_name ("EditorActiveTrackNameDisplay");
 476         return false;
 477 }
 478
 479 bool
 480 TimeAxisView::name_entry_focus_out (GdkEventFocus* ev)
 481 {
 482         /* clean up */
 483
 484         last_name_entry_key_press_event = 0;
 485         name_entry_key_timeout.disconnect ();
 486         name_entry.set_name ("EditorTrackNameDisplay");
 487         name_entry.select_region (0,0);
 488
 489         /* do the real stuff */
 490
 491         name_entry_changed ();
 492
 493         return false;
 494 }
 495
 496 bool
 497 TimeAxisView::name_entry_key_timed_out ()
 498 {
 499         name_entry_activated();
 500         return false;
 501 }
 502
 503 void
 504 TimeAxisView::name_entry_activated ()
 505 {
 506         controls_ebox.grab_focus();
 507 }
 508
 509 void
 510 TimeAxisView::name_entry_changed ()
 511 {
 512 }
 513
 514 bool
 515 TimeAxisView::name_entry_button_press (GdkEventButton *ev)
 516 {
 517         if (ev->button == 3) {
 518                 return true;
 519         }
 520         return false;
 521 }
 522
 523 bool
 524 TimeAxisView::name_entry_button_release (GdkEventButton *ev)
 525 {
 526         if (ev->button == 3) {
 527                 popup_display_menu (ev->time);
 528                 return true;
 529         }
 530         return false;
 531 }
 532
 533 void
 534 TimeAxisView::conditionally_add_to_selection ()
 535 {
 536         Selection& s (editor.get_selection());
 537
 538         if (!s.selected (this)) {
 539                 editor.set_selected_track (*this, Selection::Set);
 540         }
 541 }
 542
 543
 544 void
 545 TimeAxisView::popup_display_menu (guint32 when)
 546 {
 547         if (display_menu == 0) {
 548                 build_display_menu ();
 549         }
 550
 551         conditionally_add_to_selection ();
 552         display_menu->popup (1, when);
 553 }
 554
 555 gint
 556 TimeAxisView::size_click (GdkEventButton *ev)
 557 {
 558         conditionally_add_to_selection ();
 559         popup_size_menu (ev->time);
 560         return TRUE;
 561 }
 562
 563 void
 564 TimeAxisView::popup_size_menu (guint32 when)
 565 {
 566         if (size_menu == 0) {
 567                 build_size_menu ();
 568         }
 569         size_menu->popup (1, when);
 570 }
 571
 572 void
 573 TimeAxisView::set_selected (bool yn)
 574 {
 575         if (yn == _selected) {
 576                 return;
 577         }
 578
 579         Selectable::set_selected (yn);
 580
 581         if (_selected) {
 582                 controls_ebox.set_name (controls_base_selected_name);
 583                 controls_frame.set_name (controls_base_selected_name);
 584                 controls_vbox.set_name (controls_base_selected_name);
 585                 /* propagate any existing selection, if the mode is right */
 586
 587                 if (editor.current_mouse_mode() == Editing::MouseRange && !editor.get_selection().time.empty()) {
 588                         show_selection (editor.get_selection().time);
 589                 }
 590
 591         } else {
 592                 controls_ebox.set_name (controls_base_unselected_name);
 593                 controls_frame.set_name (controls_base_unselected_name);
 594                 controls_vbox.set_name (controls_base_unselected_name);
 595                 hide_selection ();
 596
 597                 /* children will be set for the yn=true case. but when deselecting
 598                    the editor only has a list of top-level trackviews, so we
 599                    have to do this here.
 600                 */
 601
 602                 for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 603                         (*i)->set_selected (false);
 604                 }
 605         }
 606
 607         resizer.queue_draw ();
 608 }
 609
 610 void
 611 TimeAxisView::build_size_menu ()
 612 {
 613         using namespace Menu_Helpers;
 614
 615         size_menu = new Menu;
 616         size_menu->set_name ("ArdourContextMenu");
 617         MenuList& items = size_menu->items();
 618
 619         items.push_back (MenuElem (_("Largest"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLargest)));
 620         items.push_back (MenuElem (_("Large"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarge)));
 621         items.push_back (MenuElem (_("Larger"), bind (mem_fun (*this, &TimeAxisView::set_heights), hLarger)));
 622         items.push_back (MenuElem (_("Normal"), bind (mem_fun (*this, &TimeAxisView::set_heights), hNormal)));
 623         items.push_back (MenuElem (_("Smaller"), bind (mem_fun (*this, &TimeAxisView::set_heights),hSmaller)));
 624         items.push_back (MenuElem (_("Small"), bind (mem_fun (*this, &TimeAxisView::set_heights), hSmall)));
 625 }
 626
 627 void
 628 TimeAxisView::build_display_menu ()
 629 {
 630         using namespace Menu_Helpers;
 631
 632         display_menu = new Menu;
 633         display_menu->set_name ("ArdourContextMenu");
 634
 635         // Just let implementing classes define what goes into the manu
 636 }
 637
 638 void
 639 TimeAxisView::set_samples_per_unit (double spu)
 640 {
 641         AnalysisFeatureList::const_iterator i;
 642         list<ArdourCanvas::SimpleLine*>::iterator l;
 643
 644         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
 645                 (*l)->property_x1() = editor.frame_to_pixel (*i);
 646                 (*l)->property_x2() = editor.frame_to_pixel (*i);
 647         }
 648
 649         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 650                 (*i)->set_samples_per_unit (spu);
 651         }
 652 }
 653
 654 void
 655 TimeAxisView::show_timestretch (nframes_t start, nframes_t end)
 656 {
 657         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 658                 (*i)->show_timestretch (start, end);
 659         }
 660 }
 661
 662 void
 663 TimeAxisView::hide_timestretch ()
 664 {
 665         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 666                 (*i)->hide_timestretch ();
 667         }
 668 }
 669
 670 void
 671 TimeAxisView::show_selection (TimeSelection& ts)
 672 {
 673         double x1;
 674         double x2;
 675         double y2;
 676         SelectionRect *rect;
 677
 678         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 679                 (*i)->show_selection (ts);
 680         }
 681
 682         if (canvas_item_visible (selection_group)) {
 683                 while (!used_selection_rects.empty()) {
 684                         free_selection_rects.push_front (used_selection_rects.front());
 685                         used_selection_rects.pop_front();
 686                         free_selection_rects.front()->rect->hide();
 687                         free_selection_rects.front()->start_trim->hide();
 688                         free_selection_rects.front()->end_trim->hide();
 689                 }
 690                 selection_group->hide();
 691         }
 692
 693         selection_group->show();
 694         selection_group->raise_to_top();
 695
 696         for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
 697                 nframes_t start, end, cnt;
 698
 699                 start = (*i).start;
 700                 end = (*i).end;
 701                 cnt = end - start + 1;
 702
 703                 rect = get_selection_rect ((*i).id);
 704
 705                 x1 = editor.frame_to_unit (start);
 706                 x2 = editor.frame_to_unit (start + cnt - 1);
 707                 y2 = current_height();
 708
 709                 rect->rect->property_x1() = x1;
 710                 rect->rect->property_y1() = 1.0;
 711                 rect->rect->property_x2() = x2;
 712                 rect->rect->property_y2() = y2;
 713
 714                 // trim boxes are at the top for selections
 715
 716                 if (x2 > x1) {
 717                         rect->start_trim->property_x1() = x1;
 718                         rect->start_trim->property_y1() = 1.0;
 719                         rect->start_trim->property_x2() = x1 + trim_handle_size;
 720                         rect->start_trim->property_y2() = 1.0 + trim_handle_size;
 721
 722                         rect->end_trim->property_x1() = x2 - trim_handle_size;
 723                         rect->end_trim->property_y1() = 1.0;
 724                         rect->end_trim->property_x2() = x2;
 725                         rect->end_trim->property_y2() = 1.0 + trim_handle_size;
 726
 727                         rect->start_trim->show();
 728                         rect->end_trim->show();
 729                 } else {
 730                         rect->start_trim->hide();
 731                         rect->end_trim->hide();
 732                 }
 733
 734                 rect->rect->show ();
 735                 used_selection_rects.push_back (rect);
 736         }
 737 }
 738
 739 void
 740 TimeAxisView::reshow_selection (TimeSelection& ts)
 741 {
 742         show_selection (ts);
 743
 744         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 745                 (*i)->show_selection (ts);
 746         }
 747 }
 748
 749 void
 750 TimeAxisView::hide_selection ()
 751 {
 752         if (canvas_item_visible (selection_group)) {
 753                 while (!used_selection_rects.empty()) {
 754                         free_selection_rects.push_front (used_selection_rects.front());
 755                         used_selection_rects.pop_front();
 756                         free_selection_rects.front()->rect->hide();
 757                         free_selection_rects.front()->start_trim->hide();
 758                         free_selection_rects.front()->end_trim->hide();
 759                 }
 760                 selection_group->hide();
 761         }
 762
 763         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 764                 (*i)->hide_selection ();
 765         }
 766 }
 767
 768 void
 769 TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
 770 {
 771         /* find the selection rect this is for. we have the item corresponding to one
 772            of the trim handles.
 773          */
 774
 775         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 776                 if ((*i)->start_trim == item || (*i)->end_trim == item) {
 777
 778                         /* make one trim handle be "above" the other so that if they overlap,
 779                            the top one is the one last used.
 780                         */
 781
 782                         (*i)->rect->raise_to_top ();
 783                         (put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
 784                         (put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
 785
 786                         break;
 787                 }
 788         }
 789 }
 790
 791 SelectionRect *
 792 TimeAxisView::get_selection_rect (uint32_t id)
 793 {
 794         SelectionRect *rect;
 795
 796         /* check to see if we already have a visible rect for this particular selection ID */
 797
 798         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
 799                 if ((*i)->id == id) {
 800                         return (*i);
 801                 }
 802         }
 803
 804         /* ditto for the free rect list */
 805
 806         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
 807                 if ((*i)->id == id) {
 808                         SelectionRect* ret = (*i);
 809                         free_selection_rects.erase (i);
 810                         return ret;
 811                 }
 812         }
 813
 814         /* no existing matching rect, so go get a new one from the free list, or create one if there are none */
 815
 816         if (free_selection_rects.empty()) {
 817
 818                 rect = new SelectionRect;
 819
 820                 rect->rect = new SimpleRect (*selection_group);
 821                 rect->rect->property_x1() = 0.0;
 822                 rect->rect->property_y1() = 0.0;
 823                 rect->rect->property_x2() = 0.0;
 824                 rect->rect->property_y2() = 0.0;
 825                 rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 826                 rect->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
 827
 828                 rect->start_trim = new SimpleRect (*selection_group);
 829                 rect->start_trim->property_x1() = 0.0;
 830                 rect->start_trim->property_x2() = 0.0;
 831                 rect->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 832                 rect->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 833
 834                 rect->end_trim = new SimpleRect (*selection_group);
 835                 rect->end_trim->property_x1() = 0.0;
 836                 rect->end_trim->property_x2() = 0.0;
 837                 rect->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 838                 rect->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
 839
 840                 free_selection_rects.push_front (rect);
 841
 842                 rect->rect->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
 843                 rect->start_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
 844                 rect->end_trim->signal_event().connect (bind (mem_fun (editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
 845         }
 846
 847         rect = free_selection_rects.front();
 848         rect->id = id;
 849         free_selection_rects.pop_front();
 850         return rect;
 851 }
 852
 853 bool
 854 TimeAxisView::is_child (TimeAxisView* tav)
 855 {
 856         return find (children.begin(), children.end(), tav) != children.end();
 857 }
 858
 859 void
 860 TimeAxisView::add_child (TimeAxisView* child)
 861 {
 862         children.push_back (child);
 863 }
 864
 865 void
 866 TimeAxisView::remove_child (TimeAxisView* child)
 867 {
 868         vector<TimeAxisView*>::iterator i;
 869
 870         if ((i = find (children.begin(), children.end(), child)) != children.end()) {
 871                 children.erase (i);
 872         }
 873 }
 874
 875 void
 876 TimeAxisView::get_selectables (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& result)
 877 {
 878         return;
 879 }
 880
 881 void
 882 TimeAxisView::get_inverted_selectables (Selection& sel, list<Selectable*>& result)
 883 {
 884         return;
 885 }
 886
 887 bool
 888 TimeAxisView::touched (double top, double bot)
 889 {
 890         /* remember: this is X Window - coordinate space starts in upper left and moves down.
 891            y_position is the "origin" or "top" of the track.
 892          */
 893
 894         double mybot = y_position + current_height();
 895
 896         return ((y_position <= bot && y_position >= top) ||
 897                 ((mybot <= bot) && (top < mybot)) ||
 898                 (mybot >= bot && y_position < top));
 899 }
 900
 901 void
 902 TimeAxisView::set_parent (TimeAxisView& p)
 903 {
 904         parent = &p;
 905 }
 906
 907 bool
 908 TimeAxisView::has_state () const
 909 {
 910         return _has_state;
 911 }
 912
 913 TimeAxisView*
 914 TimeAxisView::get_parent_with_state ()
 915 {
 916         if (parent == 0) {
 917                 return 0;
 918         }
 919
 920         if (parent->has_state()) {
 921                 return parent;
 922         }
 923
 924         return parent->get_parent_with_state ();
 925 }
 926
 927
 928 XMLNode&
 929 TimeAxisView::get_state ()
 930 {
 931         XMLNode* node = new XMLNode ("TAV-" + name());
 932         char buf[32];
 933
 934         snprintf (buf, sizeof(buf), "%u", height);
 935         node->add_property ("height", buf);
 936         node->add_property ("marked_for_display", (_marked_for_display ? "1" : "0"));
 937         return *node;
 938 }
 939
 940 int
 941 TimeAxisView::set_state (const XMLNode& node)
 942 {
 943         const XMLProperty *prop;
 944
 945         if ((prop = node.property ("marked_for_display")) != 0) {
 946                 _marked_for_display = (prop->value() == "1");
 947         }
 948
 949         if ((prop = node.property ("track_height")) != 0) {
 950
 951                 if (prop->value() == "largest") {
 952                         set_height (hLargest);
 953                 } else if (prop->value() == "large") {
 954                         set_height (hLarge);
 955                 } else if (prop->value() == "larger") {
 956                         set_height (hLarger);
 957                 } else if (prop->value() == "normal") {
 958                         set_height (hNormal);
 959                 } else if (prop->value() == "smaller") {
 960                         set_height (hSmaller);
 961                 } else if (prop->value() == "small") {
 962                         set_height (hSmall);
 963                 } else {
 964                         error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
 965                         set_height (Normal);
 966                 }
 967
 968         } else if ((prop = node.property ("height")) != 0) {
 969
 970                 set_height (atoi (prop->value()));
 971
 972         } else {
 973
 974                 set_height (hNormal);
 975         }
 976
 977         return 0;
 978 }
 979
 980 void
 981 TimeAxisView::reset_height()
 982 {
 983         set_height (height);
 984
 985         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
 986                 (*i)->set_height ((*i)->height);
 987         }
 988 }
 989
 990 void
 991 TimeAxisView::compute_controls_size_info ()
 992 {
 993         Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
 994         Gtk::Table two_row_table (2, 8);
 995         Gtk::Table one_row_table (1, 8);
 996         Button* buttons[5];
 997         const int border_width = 2;
 998         const int extra_height = (2 * border_width) + 2 // 2 pixels for the controls frame
 999                 + 10; // resizer button
1000
1001         window.add (one_row_table);
1002
1003         one_row_table.set_border_width (border_width);
1004         one_row_table.set_row_spacings (0);
1005         one_row_table.set_col_spacings (0);
1006         one_row_table.set_homogeneous (true);
1007
1008         two_row_table.set_border_width (border_width);
1009         two_row_table.set_row_spacings (0);
1010         two_row_table.set_col_spacings (0);
1011         two_row_table.set_homogeneous (true);
1012
1013         for (int i = 0; i < 5; ++i) {
1014                 buttons[i] = manage (new Button (X_("f")));
1015                 buttons[i]->set_name ("TrackMuteButton");
1016         }
1017
1018         one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1019
1020         one_row_table.show_all ();
1021         Gtk::Requisition req(one_row_table.size_request ());
1022
1023
1024         // height required to show 1 row of buttons
1025
1026         hSmaller = req.height + extra_height;
1027
1028         window.remove ();
1029         window.add (two_row_table);
1030
1031         two_row_table.attach (*buttons[1], 5, 6, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1032         two_row_table.attach (*buttons[2], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1033         two_row_table.attach (*buttons[3], 7, 8, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1034         two_row_table.attach (*buttons[4], 8, 9, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
1035
1036         two_row_table.show_all ();
1037         req = two_row_table.size_request ();
1038
1039         // height required to show all normal buttons
1040
1041         hNormal = req.height + extra_height;
1042
1043         // these heights are all just larger than normal. no more
1044         // elements are visible (yet).
1045
1046         hLarger = hNormal + 50;
1047         hLarge = hNormal + 150;
1048         hLargest = hNormal + 250;
1049
1050         // height required to show track name
1051
1052         hSmall = 27;
1053 }
1054
1055 void
1056 TimeAxisView::show_name_label ()
1057 {
1058         if (!(name_packing & NameLabelPacked)) {
1059                 name_hbox.pack_start (name_label, true, true);
1060                 name_packing = NamePackingBits (name_packing | NameLabelPacked);
1061                 name_hbox.show ();
1062                 name_label.show ();
1063         }
1064 }
1065
1066 void
1067 TimeAxisView::show_name_entry ()
1068 {
1069         if (!(name_packing & NameEntryPacked)) {
1070                 name_hbox.pack_start (name_entry, true, true);
1071                 name_packing = NamePackingBits (name_packing | NameEntryPacked);
1072                 name_hbox.show ();
1073                 name_entry.show ();
1074         }
1075 }
1076
1077 void
1078 TimeAxisView::hide_name_label ()
1079 {
1080         if (name_packing & NameLabelPacked) {
1081                 name_hbox.remove (name_label);
1082                 name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
1083         }
1084 }
1085
1086 void
1087 TimeAxisView::hide_name_entry ()
1088 {
1089         if (name_packing & NameEntryPacked) {
1090                 name_hbox.remove (name_entry);
1091                 name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
1092         }
1093 }
1094
1095 void
1096 TimeAxisView::color_handler ()
1097 {
1098         for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
1099
1100                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1101                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1102
1103                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1104                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1105
1106                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1107                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1108         }
1109
1110         for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
1111
1112                 (*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
1113                 (*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1114
1115                 (*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1116                 (*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1117
1118                 (*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1119                 (*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
1120         }
1121 }
1122
1123 TimeAxisView*
1124 TimeAxisView::covers_y_position (double y)
1125 {
1126         if (hidden()) {
1127                 return 0;
1128         }
1129
1130         if (y_position <= y && y < (y_position + height)) {
1131                 return this;
1132         }
1133
1134         for (vector<TimeAxisView*>::iterator i = children.begin(); i != children.end(); ++i) {
1135                 TimeAxisView* tv;
1136
1137                 if ((tv = (*i)->covers_y_position (y)) != 0) {
1138                         return tv;
1139                 }
1140         }
1141
1142         return 0;
1143 }
1144
1145 void
1146 TimeAxisView::show_feature_lines (const AnalysisFeatureList& pos)
1147 {
1148         analysis_features = pos;
1149         reshow_feature_lines ();
1150 }
1151
1152
1153 void
1154 TimeAxisView::hide_feature_lines ()
1155 {
1156         list<ArdourCanvas::SimpleLine*>::iterator l;
1157
1158         for (l = feature_lines.begin(); l != feature_lines.end(); ++l) {
1159                 (*l)->hide();
1160         }
1161 }
1162
1163 void
1164 TimeAxisView::reshow_feature_lines ()
1165 {
1166         while (feature_lines.size()< analysis_features.size()) {
1167                 ArdourCanvas::SimpleLine* l = new ArdourCanvas::SimpleLine (*canvas_display);
1168                 l->property_color_rgba() = (guint) ARDOUR_UI::config()->canvasvar_ZeroLine.get();
1169                 feature_lines.push_back (l);
1170         }
1171
1172         while (feature_lines.size() > analysis_features.size()) {
1173                 ArdourCanvas::SimpleLine *line = feature_lines.back();
1174                 feature_lines.pop_back ();
1175                 delete line;
1176         }
1177
1178         AnalysisFeatureList::const_iterator i;
1179         list<ArdourCanvas::SimpleLine*>::iterator l;
1180
1181         for (i = analysis_features.begin(), l = feature_lines.begin(); i != analysis_features.end() && l != feature_lines.end(); ++i, ++l) {
1182                 (*l)->property_x1() = editor.frame_to_pixel (*i);
1183                 (*l)->property_x2() = editor.frame_to_pixel (*i);
1184                 (*l)->property_y1() = 0;
1185                 (*l)->property_y2() = current_height();
1186                 (*l)->show ();
1187         }
1188 }
1189
1190 bool
1191 TimeAxisView::resizer_button_press (GdkEventButton* event)
1192 {
1193         resize_drag_start = event->y_root;
1194         resize_idle_target = current_height();
1195         editor.start_resize_line_ops ();
1196         return true;
1197 }
1198
1199 bool
1200 TimeAxisView::resizer_button_release (GdkEventButton* ev)
1201 {
1202         resize_drag_start = -1;
1203         editor.end_resize_line_ops ();
1204         return true;
1205 }
1206
1207 void
1208 TimeAxisView::idle_resize (uint32_t h)
1209 {
1210         set_height (h);
1211 }
1212
1213 bool
1214 TimeAxisView::resizer_motion (GdkEventMotion* ev)
1215 {
1216         if (resize_drag_start < 0) {
1217                 return true;
1218         }
1219
1220         int32_t delta = (int32_t) floor (resize_drag_start - ev->y_root);
1221
1222         resize_idle_target = std::max (resize_idle_target - delta, (int) hSmall);
1223         editor.add_to_idle_resize (this, resize_idle_target);
1224
1225         resize_drag_start = ev->y_root;
1226
1227         return true;
1228 }
1229
1230 bool
1231 TimeAxisView::resizer_expose (GdkEventExpose* event)
1232 {
1233         int w, h, x, y, d;
1234         Glib::RefPtr<Gdk::Window> win (resizer.get_window());
1235         Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
1236         Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
1237
1238         win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
1239                              true,
1240                              event->area.x,
1241                              event->area.y,
1242                              event->area.width,
1243                              event->area.height);
1244
1245         win->get_geometry (x, y, w, h, d);
1246
1247         /* handle/line #1 */
1248
1249         win->draw_line (dark, 0, 0, w - 2, 0);
1250         win->draw_point (dark, 0, 1);
1251         win->draw_line (light, 1, 1, w - 1, 1);
1252         win->draw_point (light, w - 1, 0);
1253
1254         /* handle/line #2 */
1255
1256         win->draw_line (dark, 0, 4, w - 2, 4);
1257         win->draw_point (dark, 0, 5);
1258         win->draw_line (light, 1, 5, w - 1, 5);
1259         win->draw_point (light, w - 1, 4);
1260
1261         /* handle/line #3 */
1262
1263         win->draw_line (dark, 0, 8, w - 2, 8);
1264         win->draw_point (dark, 0, 9);
1265         win->draw_line (light, 1, 9, w - 1, 9);
1266         win->draw_point (light, w - 1, 8);
1267
1268         return true;
1269 }
1270