gtk2_ardour/ardour_ui2.cc

   1 /*
   2     Copyright (C) 1999 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 <fcntl.h>
  22 #include <signal.h>
  23 #include <unistd.h>
  24 #include <cerrno>
  25 #include <iostream>
  26 #include <cmath>
  27
  28 #include <sigc++/bind.h>
  29 #include <pbd/error.h>
  30 #include <pbd/basename.h>
  31 #include <pbd/fastlog.h>
  32 #include <gtkmm2ext/utils.h>
  33 #include <gtkmm2ext/click_box.h>
  34 #include <gtkmm2ext/tearoff.h>
  35
  36 #include <ardour/audioengine.h>
  37 #include <ardour/ardour.h>
  38 #include <ardour/route.h>
  39
  40 #include "ardour_ui.h"
  41 #include "public_editor.h"
  42 #include "audio_clock.h"
  43 #include "actions.h"
  44 #include "utils.h"
  45
  46 #include "i18n.h"
  47
  48 using namespace std;
  49 using namespace ARDOUR;
  50 using namespace Gtkmm2ext;
  51 using namespace Gtk;
  52 using namespace Glib;
  53 using namespace sigc;
  54
  55 int
  56 ARDOUR_UI::setup_windows ()
  57 {
  58         if (create_editor ()) {
  59                 error << _("UI: cannot setup editor") << endmsg;
  60                 return -1;
  61         }
  62
  63         if (create_mixer ()) {
  64                 error << _("UI: cannot setup mixer") << endmsg;
  65                 return -1;
  66         }
  67
  68         /* all other dialogs are created conditionally */
  69
  70         we_have_dependents ();
  71
  72         setup_clock ();
  73         setup_transport();
  74         setup_adjustables ();
  75         build_menu_bar ();
  76
  77         top_packer.pack_start (menu_bar_base, false, false);
  78         top_packer.pack_start (transport_frame, false, false);
  79
  80         editor->add_toplevel_controls (top_packer);
  81
  82         return 0;
  83 }
  84
  85 void
  86 ARDOUR_UI::setup_adjustables ()
  87 {
  88         adjuster_table.set_homogeneous (true);
  89
  90         online_control_strings.push_back (_("MMC + Local"));
  91         online_control_strings.push_back (_("MMC"));
  92         online_control_strings.push_back (_("Local"));
  93
  94         online_control_button = new GlobalClickBox ("CONTROL",
  95                                                     online_control_strings);
  96
  97         online_control_button->adjustment.signal_value_changed().connect(mem_fun(*this,&ARDOUR_UI::control_methods_adjusted));
  98
  99         mmc_id_strings.push_back ("1");
 100         mmc_id_strings.push_back ("2");
 101         mmc_id_strings.push_back ("3");
 102         mmc_id_strings.push_back ("4");
 103         mmc_id_strings.push_back ("5");
 104         mmc_id_strings.push_back ("6");
 105         mmc_id_strings.push_back ("7");
 106         mmc_id_strings.push_back ("8");
 107         mmc_id_strings.push_back ("9");
 108
 109         mmc_id_button = new GlobalClickBox (_("MMC ID"), mmc_id_strings);
 110
 111         mmc_id_button->adjustment.signal_value_changed().connect (mem_fun(*this,&ARDOUR_UI::mmc_device_id_adjusted));
 112
 113         adjuster_table.attach (*online_control_button, 0, 2, 1, 2, FILL|EXPAND, FILL, 5, 5);
 114         adjuster_table.attach (*mmc_id_button, 2, 3, 1, 2, FILL, FILL, 5, 5);
 115 }
 116
 117 void
 118 ARDOUR_UI::transport_stopped ()
 119 {
 120         stop_button.set_active (true);
 121
 122         roll_button.set_active (false);
 123         play_selection_button.set_active (false);
 124         auto_loop_button.set_active (false);
 125
 126         shuttle_fract = 0;
 127         shuttle_box.queue_draw ();
 128
 129         update_disk_space ();
 130 }
 131
 132 static const double SHUTTLE_FRACT_SPEED1=0.48412291827; /* derived from A1,A2 */
 133
 134 void
 135 ARDOUR_UI::transport_rolling ()
 136 {
 137         stop_button.set_active (false);
 138         if (session->get_play_range()) {
 139
 140                 play_selection_button.set_active (true);
 141                 roll_button.set_active (false);
 142                 auto_loop_button.set_active (false);
 143
 144         } else if (session->get_auto_loop ()) {
 145
 146                 auto_loop_button.set_active (true);
 147                 play_selection_button.set_active (false);
 148                 roll_button.set_active (false);
 149
 150         } else {
 151
 152                 roll_button.set_active (true);
 153                 play_selection_button.set_active (false);
 154                 auto_loop_button.set_active (false);
 155         }
 156
 157         /* reset shuttle controller */
 158
 159         shuttle_fract = SHUTTLE_FRACT_SPEED1;  /* speed = 1.0, believe it or not */
 160         shuttle_box.queue_draw ();
 161 }
 162
 163 void
 164 ARDOUR_UI::transport_rewinding ()
 165 {
 166         stop_button.set_active(false);
 167         roll_button.set_active (true);
 168         play_selection_button.set_active (false);
 169         auto_loop_button.set_active (false);
 170 }
 171
 172 void
 173 ARDOUR_UI::transport_forwarding ()
 174 {
 175         stop_button.set_active (false);
 176         roll_button.set_active (true);
 177         play_selection_button.set_active (false);
 178         auto_loop_button.set_active (false);
 179 }
 180
 181 void
 182 ARDOUR_UI::setup_transport ()
 183 {
 184         transport_tearoff = manage (new TearOff (transport_tearoff_hbox));
 185         transport_tearoff->set_name ("TransportBase");
 186
 187         transport_hbox.pack_start (*transport_tearoff, true, false);
 188
 189         transport_base.set_name ("TransportBase");
 190         transport_base.add (transport_hbox);
 191
 192         transport_frame.set_shadow_type (SHADOW_OUT);
 193         transport_frame.set_name ("BaseFrame");
 194         transport_frame.add (transport_base);
 195
 196         transport_tearoff->Detach.connect (bind (mem_fun(*this, &ARDOUR_UI::detach_tearoff), static_cast<Box*>(&top_packer),
 197                                                  static_cast<Widget*>(&transport_frame)));
 198         transport_tearoff->Attach.connect (bind (mem_fun(*this, &ARDOUR_UI::reattach_tearoff), static_cast<Box*> (&top_packer),
 199                                                  static_cast<Widget*> (&transport_frame), 1));
 200         transport_tearoff->Hidden.connect (bind (mem_fun(*this, &ARDOUR_UI::detach_tearoff), static_cast<Box*>(&top_packer),
 201                                                  static_cast<Widget*>(&transport_frame)));
 202         transport_tearoff->Visible.connect (bind (mem_fun(*this, &ARDOUR_UI::reattach_tearoff), static_cast<Box*> (&top_packer),
 203                                                   static_cast<Widget*> (&transport_frame), 1));
 204
 205         shuttle_box.set_name ("TransportButton");
 206         goto_start_button.set_name ("TransportButton");
 207         goto_end_button.set_name ("TransportButton");
 208         roll_button.set_name ("TransportButton");
 209         stop_button.set_name ("TransportButton");
 210         play_selection_button.set_name ("TransportButton");
 211         rec_button.set_name ("TransportRecButton");
 212         auto_loop_button.set_name ("TransportButton");
 213         auto_return_button.set_name ("TransportButton");
 214         auto_play_button.set_name ("TransportButton");
 215         auto_input_button.set_name ("TransportButton");
 216         punch_in_button.set_name ("TransportButton");
 217         punch_out_button.set_name ("TransportButton");
 218         click_button.set_name ("TransportButton");
 219         time_master_button.set_name ("TransportButton");
 220
 221         vector<Gdk::Color> colors;
 222         Gdk::Color c;
 223
 224         /* record button has 3 color states, so we set 2 extra here */
 225         set_color(c, rgba_from_style ("TransportRecButton", 0xff, 0, 0, 0, "bg", Gtk::STATE_PRELIGHT, false ));
 226         colors.push_back (c);
 227
 228         set_color(c, rgba_from_style ("TransportRecButton", 0xff, 0, 0, 0, "bg", Gtk::STATE_ACTIVE, false ));
 229         colors.push_back (c);
 230
 231         rec_button.set_colors (colors);
 232         colors.clear ();
 233
 234         /* other buttons get 2 color states, so add one here */
 235         set_color(c, rgba_from_style ("TransportButton", 0x7f, 0xff, 0x7f, 0, "bg", Gtk::STATE_ACTIVE, false ));
 236         colors.push_back (c);
 237
 238         stop_button.set_colors (colors);
 239         roll_button.set_colors (colors);
 240         auto_loop_button.set_colors (colors);
 241         play_selection_button.set_colors (colors);
 242         goto_start_button.set_colors (colors);
 243         goto_end_button.set_colors (colors);
 244
 245         Widget* w;
 246
 247         stop_button.set_active (true);
 248
 249         w = manage (new Image (Stock::MEDIA_PREVIOUS, ICON_SIZE_BUTTON));
 250         w->show();
 251         goto_start_button.add (*w);
 252         w = manage (new Image (Stock::MEDIA_NEXT, ICON_SIZE_BUTTON));
 253         w->show();
 254         goto_end_button.add (*w);
 255         w = manage (new Image (Stock::MEDIA_PLAY, ICON_SIZE_BUTTON));
 256         w->show();
 257         roll_button.add (*w);
 258         w = manage (new Image (Stock::MEDIA_STOP, ICON_SIZE_BUTTON));
 259         w->show();
 260         stop_button.add (*w);
 261         w = manage (new Image (Stock::MEDIA_PLAY, ICON_SIZE_BUTTON));
 262         w->show();
 263         play_selection_button.add (*w);
 264         w = manage (new Image (Stock::MEDIA_RECORD, ICON_SIZE_BUTTON));
 265         w->show();
 266         rec_button.add (*w);
 267         w = manage (new Image (get_xpm("loop.xpm")));
 268         w->show();
 269         auto_loop_button.add (*w);
 270
 271         RefPtr<Action> act;
 272
 273         act = ActionManager::get_action (X_("Transport"), X_("Stop"));
 274         act->connect_proxy (stop_button);
 275         act = ActionManager::get_action (X_("Transport"), X_("Roll"));
 276         act->connect_proxy (roll_button);
 277         act = ActionManager::get_action (X_("Transport"), X_("Record"));
 278         act->connect_proxy (rec_button);
 279         act = ActionManager::get_action (X_("Transport"), X_("GotoStart"));
 280         act->connect_proxy (goto_start_button);
 281         act = ActionManager::get_action (X_("Transport"), X_("GotoEnd"));
 282         act->connect_proxy (goto_end_button);
 283         act = ActionManager::get_action (X_("Transport"), X_("Loop"));
 284         act->connect_proxy (auto_loop_button);
 285         act = ActionManager::get_action (X_("Transport"), X_("PlaySelection"));
 286         act->connect_proxy (play_selection_button);
 287         act = ActionManager::get_action (X_("Transport"), X_("ToggleTimeMaster"));
 288         act->connect_proxy (time_master_button);
 289
 290         ARDOUR_UI::instance()->tooltips().set_tip (roll_button, _("Play from playhead"));
 291         ARDOUR_UI::instance()->tooltips().set_tip (stop_button, _("Stop playback"));
 292         ARDOUR_UI::instance()->tooltips().set_tip (play_selection_button, _("Play range/selection"));
 293         ARDOUR_UI::instance()->tooltips().set_tip (goto_start_button, _("Go to start of session"));
 294         ARDOUR_UI::instance()->tooltips().set_tip (goto_end_button, _("Go to end of session"));
 295         ARDOUR_UI::instance()->tooltips().set_tip (auto_loop_button, _("Play loop range"));
 296         ARDOUR_UI::instance()->tooltips().set_tip (auto_return_button, _("Return to last playback start when stopped"));
 297         ARDOUR_UI::instance()->tooltips().set_tip (auto_play_button, _("Start playback after any locate"));
 298         ARDOUR_UI::instance()->tooltips().set_tip (auto_input_button, _("Be sensible about input monitoring"));
 299         ARDOUR_UI::instance()->tooltips().set_tip (punch_in_button, _("Start recording at auto-punch start"));
 300         ARDOUR_UI::instance()->tooltips().set_tip (punch_out_button, _("Stop recording at auto-punch end"));
 301         ARDOUR_UI::instance()->tooltips().set_tip (click_button, _("Enable/Disable audio click"));
 302         ARDOUR_UI::instance()->tooltips().set_tip (sync_option_combo, _("Positional sync source"));
 303         ARDOUR_UI::instance()->tooltips().set_tip (time_master_button, _("Does Ardour control the time?"));
 304         ARDOUR_UI::instance()->tooltips().set_tip (shuttle_box, _("Shuttle speed control"));
 305         ARDOUR_UI::instance()->tooltips().set_tip (shuttle_units_button, _("Select semitones or %%-age for speed display"));
 306         ARDOUR_UI::instance()->tooltips().set_tip (speed_display_box, _("Current transport speed"));
 307
 308         shuttle_box.set_flags (CAN_FOCUS);
 309         shuttle_box.add_events (Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::BUTTON_PRESS_MASK|Gdk::POINTER_MOTION_MASK);
 310         shuttle_box.set_size_request (100, 15);
 311
 312         shuttle_box.signal_button_press_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_button_press));
 313         shuttle_box.signal_button_release_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_button_release));
 314         shuttle_box.signal_motion_notify_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_motion));
 315         shuttle_box.signal_expose_event().connect (mem_fun(*this, &ARDOUR_UI::shuttle_box_expose));
 316
 317         /* clocks, etc. */
 318
 319         ARDOUR_UI::Clock.connect (bind (mem_fun (primary_clock, &AudioClock::set), false));
 320         ARDOUR_UI::Clock.connect (bind (mem_fun (secondary_clock, &AudioClock::set), false));
 321
 322         primary_clock.set_mode (AudioClock::SMPTE);
 323         secondary_clock.set_mode (AudioClock::BBT);
 324
 325         primary_clock.ValueChanged.connect (mem_fun(*this, &ARDOUR_UI::primary_clock_value_changed));
 326         secondary_clock.ValueChanged.connect (mem_fun(*this, &ARDOUR_UI::secondary_clock_value_changed));
 327
 328         ARDOUR_UI::instance()->tooltips().set_tip (primary_clock, _("Primary clock"));
 329         ARDOUR_UI::instance()->tooltips().set_tip (secondary_clock, _("secondary clock"));
 330
 331         ActionManager::get_action ("Transport", "ToggleAutoReturn")->connect_proxy (auto_return_button);
 332         ActionManager::get_action ("Transport", "ToggleAutoPlay")->connect_proxy (auto_play_button);
 333         ActionManager::get_action ("Transport", "ToggleAutoInput")->connect_proxy (auto_input_button);
 334         ActionManager::get_action ("Transport", "ToggleClick")->connect_proxy (click_button);
 335         ActionManager::get_action ("Transport", "TogglePunchIn")->connect_proxy (punch_in_button);
 336         ActionManager::get_action ("Transport", "TogglePunchOut")->connect_proxy (punch_out_button);
 337
 338         preroll_button.unset_flags (CAN_FOCUS);
 339         preroll_button.set_events (preroll_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
 340         preroll_button.set_name ("TransportButton");
 341
 342         postroll_button.unset_flags (CAN_FOCUS);
 343         postroll_button.set_events (postroll_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
 344         postroll_button.set_name ("TransportButton");
 345
 346         preroll_clock.set_mode (AudioClock::MinSec);
 347         preroll_clock.set_name ("TransportClockDisplay");
 348         postroll_clock.set_mode (AudioClock::MinSec);
 349         postroll_clock.set_name ("TransportClockDisplay");
 350
 351         /* alerts */
 352
 353         /* CANNOT bind these to clicked or toggled, must use pressed or released */
 354
 355         solo_alert_button.set_name ("TransportSoloAlert");
 356         solo_alert_button.signal_pressed().connect (mem_fun(*this,&ARDOUR_UI::solo_alert_toggle));
 357         auditioning_alert_button.set_name ("TransportAuditioningAlert");
 358         auditioning_alert_button.signal_pressed().connect (mem_fun(*this,&ARDOUR_UI::audition_alert_toggle));
 359
 360         alert_box.pack_start (solo_alert_button);
 361         alert_box.pack_start (auditioning_alert_button);
 362
 363         transport_tearoff_hbox.set_border_width (5);
 364
 365         transport_tearoff_hbox.pack_start (goto_start_button, false, false);
 366         transport_tearoff_hbox.pack_start (goto_end_button, false, false);
 367
 368         Frame* sframe = manage (new Frame);
 369         VBox*  svbox = manage (new VBox);
 370         HBox*  shbox = manage (new HBox);
 371
 372         sframe->set_shadow_type (SHADOW_IN);
 373         sframe->add (shuttle_box);
 374
 375         shuttle_box.set_name (X_("ShuttleControl"));
 376
 377         speed_display_box.add (speed_display_label);
 378         speed_display_box.set_name (X_("ShuttleDisplay"));
 379
 380         shuttle_units_button.set_name (X_("ShuttleButton"));
 381         shuttle_units_button.signal_clicked().connect (mem_fun(*this, &ARDOUR_UI::shuttle_unit_clicked));
 382
 383         shuttle_style_button.set_name (X_("ShuttleButton"));
 384
 385         vector<string> shuttle_strings;
 386         shuttle_strings.push_back (_("sprung"));
 387         shuttle_strings.push_back (_("wheel"));
 388         set_popdown_strings (shuttle_style_button, shuttle_strings);
 389         shuttle_style_button.signal_changed().connect (mem_fun (*this, &ARDOUR_UI::shuttle_style_changed));
 390
 391         Frame* sdframe = manage (new Frame);
 392
 393         sdframe->set_shadow_type (SHADOW_IN);
 394         sdframe->add (speed_display_box);
 395
 396         mtc_port_changed ();
 397         sync_option_combo.set_active_text (positional_sync_strings.front());
 398         sync_option_combo.signal_changed().connect (mem_fun (*this, &ARDOUR_UI::sync_option_changed));
 399
 400         shbox->pack_start (*sdframe, false, false);
 401         shbox->pack_start (shuttle_units_button, true, true);
 402         shbox->pack_start (shuttle_style_button, false, false);
 403
 404         svbox->pack_start (*sframe, false, false);
 405         svbox->pack_start (*shbox, false, false);
 406
 407         transport_tearoff_hbox.pack_start (*svbox, false, false, 5);
 408
 409         transport_tearoff_hbox.pack_start (auto_loop_button, false, false);
 410         transport_tearoff_hbox.pack_start (play_selection_button, false, false);
 411         transport_tearoff_hbox.pack_start (roll_button, false, false);
 412         transport_tearoff_hbox.pack_start (stop_button, false, false);
 413         transport_tearoff_hbox.pack_start (rec_button, false, false, 10);
 414
 415         transport_tearoff_hbox.pack_start (primary_clock, false, false, 5);
 416         transport_tearoff_hbox.pack_start (secondary_clock, false, false, 5);
 417
 418         transport_tearoff_hbox.pack_start (sync_option_combo, false, false);
 419         transport_tearoff_hbox.pack_start (time_master_button, false, false);
 420         transport_tearoff_hbox.pack_start (punch_in_button, false, false);
 421         transport_tearoff_hbox.pack_start (punch_out_button, false, false);
 422         transport_tearoff_hbox.pack_start (auto_input_button, false, false);
 423         transport_tearoff_hbox.pack_start (auto_return_button, false, false);
 424         transport_tearoff_hbox.pack_start (auto_play_button, false, false);
 425         transport_tearoff_hbox.pack_start (click_button, false, false);
 426
 427         /* desensitize */
 428
 429         set_transport_sensitivity (false);
 430
 431 //      transport_tearoff_hbox.pack_start (preroll_button, false, false);
 432 //      transport_tearoff_hbox.pack_start (preroll_clock, false, false);
 433
 434 //      transport_tearoff_hbox.pack_start (postroll_button, false, false);
 435 //      transport_tearoff_hbox.pack_start (postroll_clock, false, false);
 436
 437         transport_tearoff_hbox.pack_start (alert_box, false, false, 5);
 438 }
 439
 440 void
 441 ARDOUR_UI::setup_clock ()
 442 {
 443         ARDOUR_UI::Clock.connect (bind (mem_fun (big_clock, &AudioClock::set), false));
 444
 445         big_clock_window = new Window (WINDOW_TOPLEVEL);
 446
 447         big_clock_window->set_border_width (0);
 448         big_clock_window->add  (big_clock);
 449         big_clock_window->set_title (_("ardour: clock"));
 450         big_clock_window->set_type_hint (Gdk::WINDOW_TYPE_HINT_MENU);
 451         big_clock_window->signal_realize().connect (bind (sigc::ptr_fun (set_decoration), big_clock_window,  (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
 452         big_clock_window->signal_unmap().connect (bind (sigc::ptr_fun(&ActionManager::uncheck_toggleaction), X_("<Actions>/Common/ToggleBigClock")));
 453
 454         manage_window (*big_clock_window);
 455 }
 456
 457 void
 458 ARDOUR_UI::manage_window (Window& win)
 459 {
 460         win.signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), &win));
 461         win.signal_enter_notify_event().connect (bind (mem_fun (Keyboard::the_keyboard(), &Keyboard::enter_window), &win));
 462         win.signal_leave_notify_event().connect (bind (mem_fun (Keyboard::the_keyboard(), &Keyboard::leave_window), &win));
 463 }
 464
 465 void
 466 ARDOUR_UI::detach_tearoff (Box* b, Widget* w)
 467 {
 468 //      editor->ensure_float (transport_tearoff->tearoff_window());
 469         b->remove (*w);
 470 }
 471
 472 void
 473 ARDOUR_UI::reattach_tearoff (Box* b, Widget* w, int32_t n)
 474 {
 475         b->pack_start (*w);
 476         b->reorder_child (*w, n);
 477 }
 478
 479 void
 480 ARDOUR_UI::soloing_changed (bool onoff)
 481 {
 482         if (solo_alert_button.get_active() != onoff) {
 483                 solo_alert_button.set_active (onoff);
 484         }
 485 }
 486
 487 void
 488 ARDOUR_UI::_auditioning_changed (bool onoff)
 489 {
 490         if (auditioning_alert_button.get_active() != onoff) {
 491                 auditioning_alert_button.set_active (onoff);
 492                 set_transport_sensitivity (!onoff);
 493         }
 494 }
 495
 496 void
 497 ARDOUR_UI::auditioning_changed (bool onoff)
 498 {
 499         Gtkmm2ext::UI::instance()->call_slot(bind (mem_fun(*this, &ARDOUR_UI::_auditioning_changed), onoff));
 500 }
 501
 502 void
 503 ARDOUR_UI::audition_alert_toggle ()
 504 {
 505         if (session) {
 506                 session->cancel_audition();
 507         }
 508 }
 509
 510 void
 511 ARDOUR_UI::solo_alert_toggle ()
 512 {
 513         if (session) {
 514                 session->set_all_solo (!session->soloing());
 515         }
 516 }
 517
 518 void
 519 ARDOUR_UI::solo_blink (bool onoff)
 520 {
 521         if (session == 0) {
 522                 return;
 523         }
 524
 525         if (session->soloing()) {
 526                 if (onoff) {
 527                         solo_alert_button.set_state (STATE_ACTIVE);
 528                 } else {
 529                         solo_alert_button.set_state (STATE_NORMAL);
 530                 }
 531         } else {
 532                 solo_alert_button.set_active (false);
 533                 solo_alert_button.set_state (STATE_NORMAL);
 534         }
 535 }
 536
 537 void
 538 ARDOUR_UI::audition_blink (bool onoff)
 539 {
 540         if (session == 0) {
 541                 return;
 542         }
 543
 544         if (session->is_auditioning()) {
 545                 if (onoff) {
 546                         auditioning_alert_button.set_state (STATE_ACTIVE);
 547                 } else {
 548                         auditioning_alert_button.set_state (STATE_NORMAL);
 549                 }
 550         } else {
 551                 auditioning_alert_button.set_active (false);
 552                 auditioning_alert_button.set_state (STATE_NORMAL);
 553         }
 554 }
 555
 556 void
 557 ARDOUR_UI::build_shuttle_context_menu ()
 558 {
 559         using namespace Menu_Helpers;
 560
 561         shuttle_context_menu = new Menu();
 562         MenuList& items = shuttle_context_menu->items();
 563
 564         Menu* speed_menu = manage (new Menu());
 565         MenuList& speed_items = speed_menu->items();
 566
 567         RadioMenuItem::Group group;
 568
 569         speed_items.push_back (RadioMenuElem (group, "8", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 8.0f)));
 570         if (shuttle_max_speed == 8.0) {
 571                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 572         }
 573         speed_items.push_back (RadioMenuElem (group, "6", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 6.0f)));
 574         if (shuttle_max_speed == 6.0) {
 575                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 576         }
 577         speed_items.push_back (RadioMenuElem (group, "4", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 4.0f)));
 578         if (shuttle_max_speed == 4.0) {
 579                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 580         }
 581         speed_items.push_back (RadioMenuElem (group, "3", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 3.0f)));
 582         if (shuttle_max_speed == 3.0) {
 583                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 584         }
 585         speed_items.push_back (RadioMenuElem (group, "2", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 2.0f)));
 586         if (shuttle_max_speed == 2.0) {
 587                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 588         }
 589         speed_items.push_back (RadioMenuElem (group, "1.5", bind (mem_fun (*this, &ARDOUR_UI::set_shuttle_max_speed), 1.5f)));
 590         if (shuttle_max_speed == 1.5) {
 591                 static_cast<RadioMenuItem*>(&speed_items.back())->set_active ();
 592         }
 593
 594         items.push_back (MenuElem (_("Maximum speed"), *speed_menu));
 595 }
 596
 597 void
 598 ARDOUR_UI::show_shuttle_context_menu ()
 599 {
 600         if (shuttle_context_menu == 0) {
 601                 build_shuttle_context_menu ();
 602         }
 603
 604         shuttle_context_menu->popup (1, 0);
 605 }
 606
 607 void
 608 ARDOUR_UI::set_shuttle_max_speed (float speed)
 609 {
 610         shuttle_max_speed = speed;
 611 }
 612
 613 gint
 614 ARDOUR_UI::shuttle_box_button_press (GdkEventButton* ev)
 615 {
 616         if (!session) {
 617                 return true;
 618         }
 619
 620         if (Keyboard::is_context_menu_event (ev)) {
 621                 show_shuttle_context_menu ();
 622                 return true;
 623         }
 624
 625         switch (ev->button) {
 626         case 1:
 627                 shuttle_box.add_modal_grab ();
 628                 shuttle_grabbed = true;
 629                 mouse_shuttle (ev->x, true);
 630                 break;
 631
 632         case 2:
 633         case 3:
 634                 return true;
 635                 break;
 636         }
 637
 638         return true;
 639 }
 640
 641 gint
 642 ARDOUR_UI::shuttle_box_button_release (GdkEventButton* ev)
 643 {
 644         if (!session) {
 645                 return true;
 646         }
 647
 648         switch (ev->button) {
 649         case 1:
 650                 mouse_shuttle (ev->x, true);
 651                 shuttle_grabbed = false;
 652                 shuttle_box.remove_modal_grab ();
 653                 if (shuttle_behaviour == Sprung) {
 654                         shuttle_fract = SHUTTLE_FRACT_SPEED1;
 655                         session->request_transport_speed (1.0);
 656                         shuttle_box.queue_draw ();
 657                 }
 658                 return true;
 659
 660         case 2:
 661                 if (session->transport_rolling()) {
 662                         shuttle_fract = SHUTTLE_FRACT_SPEED1;
 663                         session->request_transport_speed (1.0);
 664                 } else {
 665                         shuttle_fract = 0;
 666                 }
 667                 shuttle_box.queue_draw ();
 668                 return true;
 669
 670         case 3:
 671                 return true;
 672
 673         case 4:
 674                 shuttle_fract += 0.005;
 675                 break;
 676         case 5:
 677                 shuttle_fract -= 0.005;
 678                 break;
 679         }
 680
 681         use_shuttle_fract (true);
 682
 683         return true;
 684 }
 685
 686 gint
 687 ARDOUR_UI::shuttle_box_motion (GdkEventMotion* ev)
 688 {
 689         if (!session || !shuttle_grabbed) {
 690                 return true;
 691         }
 692
 693         return mouse_shuttle (ev->x, false);
 694 }
 695
 696 gint
 697 ARDOUR_UI::mouse_shuttle (double x, bool force)
 698 {
 699         double half_width = shuttle_box.get_width() / 2.0;
 700         double distance = x - half_width;
 701
 702         if (distance > 0) {
 703                 distance = min (distance, half_width);
 704         } else {
 705                 distance = max (distance, -half_width);
 706         }
 707
 708         shuttle_fract = distance / half_width;
 709         use_shuttle_fract (force);
 710         return true;
 711 }
 712
 713 void
 714 ARDOUR_UI::use_shuttle_fract (bool force)
 715 {
 716         struct timeval now;
 717         struct timeval diff;
 718
 719         /* do not attempt to submit a motion-driven transport speed request
 720            more than once per process cycle.
 721          */
 722
 723         gettimeofday (&now, 0);
 724         timersub (&now, &last_shuttle_request, &diff);
 725
 726         if (!force && (diff.tv_usec + (diff.tv_sec * 1000000)) < engine->usecs_per_cycle()) {
 727                 return;
 728         }
 729
 730         last_shuttle_request = now;
 731
 732         bool neg = (shuttle_fract < 0.0);
 733
 734         double fract = 1 - sqrt (1 - (shuttle_fract * shuttle_fract)); // Formula A1
 735
 736         if (neg) {
 737                 fract = -fract;
 738         }
 739
 740         session->request_transport_speed (shuttle_max_speed * fract); // Formula A2
 741         shuttle_box.queue_draw ();
 742 }
 743
 744 gint
 745 ARDOUR_UI::shuttle_box_expose (GdkEventExpose* event)
 746 {
 747         gint x;
 748         Glib::RefPtr<Gdk::Window> win (shuttle_box.get_window());
 749
 750         /* redraw the background */
 751
 752         win->draw_rectangle (shuttle_box.get_style()->get_bg_gc (shuttle_box.get_state()),
 753                              true,
 754                              event->area.x, event->area.y,
 755                              event->area.width, event->area.height);
 756
 757
 758         x = (gint) floor ((shuttle_box.get_width() / 2.0) + (0.5 * (shuttle_box.get_width() * shuttle_fract)));
 759
 760         /* draw line */
 761
 762         win->draw_line (shuttle_box.get_style()->get_fg_gc (shuttle_box.get_state()),
 763                         x,
 764                         0,
 765                         x,
 766                         shuttle_box.get_height());
 767         return true;
 768 }
 769
 770 void
 771 ARDOUR_UI::shuttle_unit_clicked ()
 772 {
 773         if (shuttle_unit_menu == 0) {
 774                 shuttle_unit_menu = dynamic_cast<Menu*> (ActionManager::get_widget ("/ShuttleUnitPopup"));
 775         }
 776         shuttle_unit_menu->popup (1, 0);
 777 }
 778
 779 void
 780 ARDOUR_UI::set_shuttle_units (ShuttleUnits u)
 781 {
 782         switch ((shuttle_units = u)) {
 783         case Percentage:
 784                 static_cast<Label*>(shuttle_units_button.get_child())->set_text ("% ");
 785                 break;
 786         case Semitones:
 787                 static_cast<Label*>(shuttle_units_button.get_child())->set_text (_("st"));
 788                 break;
 789         }
 790 }
 791
 792 void
 793 ARDOUR_UI::shuttle_style_changed ()
 794 {
 795         ustring str = shuttle_style_button.get_active_text ();
 796
 797         if (str == _("sprung")) {
 798                 set_shuttle_behaviour (Sprung);
 799         } else if (str == _("wheel")) {
 800                 set_shuttle_behaviour (Wheel);
 801         }
 802 }
 803
 804
 805 void
 806 ARDOUR_UI::set_shuttle_behaviour (ShuttleBehaviour b)
 807 {
 808         switch ((shuttle_behaviour = b)) {
 809         case Sprung:
 810                 shuttle_style_button.set_active_text (_("sprung"));
 811                 shuttle_fract = 0.0;
 812                 shuttle_box.queue_draw ();
 813                 if (session) {
 814                         if (session->transport_rolling()) {
 815                                 shuttle_fract = SHUTTLE_FRACT_SPEED1;
 816                                 session->request_transport_speed (1.0);
 817                         }
 818                 }
 819                 break;
 820         case Wheel:
 821                 shuttle_style_button.set_active_text (_("wheel"));
 822                 break;
 823         }
 824 }
 825
 826 void
 827 ARDOUR_UI::update_speed_display ()
 828 {
 829         if (!session) {
 830                 if (last_speed_displayed != 0) {
 831                         speed_display_label.set_text (_("stopped"));
 832                         last_speed_displayed = 0;
 833                 }
 834                 return;
 835         }
 836
 837         char buf[32];
 838         float x = session->transport_speed ();
 839
 840         if (x != last_speed_displayed) {
 841
 842                 if (x != 0) {
 843                         if (shuttle_units == Percentage) {
 844                                 snprintf (buf, sizeof (buf), "%.4f", x);
 845                         } else {
 846                                 if (x < 0) {
 847                                         snprintf (buf, sizeof (buf), "< %.1f", 12.0 * fast_log2 (-x));
 848                                 } else {
 849                                         snprintf (buf, sizeof (buf), "> %.1f", 12.0 * fast_log2 (x));
 850                                 }
 851                         }
 852                         speed_display_label.set_text (buf);
 853                 } else {
 854                         speed_display_label.set_text (_("stopped"));
 855                 }
 856
 857                 last_speed_displayed = x;
 858         }
 859 }
 860
 861 void
 862 ARDOUR_UI::set_transport_sensitivity (bool yn)
 863 {
 864         ActionManager::set_sensitive (ActionManager::transport_sensitive_actions, yn);
 865         shuttle_box.set_sensitive (yn);
 866 }
 867
 868 void
 869 ARDOUR_UI::editor_realized ()
 870 {
 871         set_size_request_to_display_given_text (speed_display_box, _("stopped"), 2, 2);
 872         /* XXX: this should really be saved in instant.xml or something similar and restored from there */
 873         shuttle_style_button.set_active_text (_("sprung"));
 874         const guint32 FUDGE = 20; // Combo's are stupid - they steal space from the entry for the button
 875         set_size_request_to_display_given_text (shuttle_style_button, _("sprung"), 2+FUDGE, 10);
 876 }
 877
 878 void
 879 ARDOUR_UI::sync_option_changed ()
 880 {
 881         string which;
 882
 883         if (session == 0) {
 884                 return;
 885         }
 886
 887         which = sync_option_combo.get_active_text();
 888
 889         if (which == positional_sync_strings[Session::None]) {
 890                 session->request_slave_source (Session::None);
 891         } else if (which == positional_sync_strings[Session::MTC]) {
 892                 session->request_slave_source (Session::MTC);
 893         } else if (which == positional_sync_strings[Session::JACK]) {
 894                 session->request_slave_source (Session::JACK);
 895         }
 896 }
 897
 898 void
 899 ARDOUR_UI::maximise_editing_space ()
 900 {
 901         if (!editor) {
 902                 return;
 903         }
 904
 905         transport_tearoff->set_visible (false);
 906         editor->maximise_editing_space ();
 907 }
 908
 909 void
 910 ARDOUR_UI::restore_editing_space ()
 911 {
 912         if (!editor) {
 913                 return;
 914         }
 915
 916         transport_tearoff->set_visible (true);
 917         editor->restore_editing_space ();
 918 }