gtk2_ardour/ardour_ui.h

   1 /*
   2     Copyright (C) 1999-2002 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 #ifndef __ardour_gui_h__
  21 #define __ardour_gui_h__
  22
  23 #include <time.h>
  24
  25 /* need _BSD_SOURCE to get timersub macros */
  26
  27 #ifdef _BSD_SOURCE
  28 #include <sys/time.h>
  29 #else
  30 #define _BSD_SOURCE
  31 #include <sys/time.h>
  32 #undef _BSD_SOURCE
  33 #endif
  34
  35 #include <list>
  36 #include <cmath>
  37
  38 #include <libgnomecanvasmm/canvas.h>
  39
  40 #include "pbd/xml++.h"
  41 #include "pbd/controllable.h"
  42 #include <gtkmm/box.h>
  43 #include <gtkmm/frame.h>
  44 #include <gtkmm/label.h>
  45 #include <gtkmm/table.h>
  46 #include <gtkmm/fixed.h>
  47 #include <gtkmm/drawingarea.h>
  48 #include <gtkmm/eventbox.h>
  49 #include <gtkmm/menu.h>
  50 #include <gtkmm/menuitem.h>
  51 #include <gtkmm/button.h>
  52 #include <gtkmm/togglebutton.h>
  53 #include <gtkmm/treeview.h>
  54 #include <gtkmm/menubar.h>
  55 #include <gtkmm/textbuffer.h>
  56 #include <gtkmm/adjustment.h>
  57 #include <gtkmm2ext/gtk_ui.h>
  58 #include <gtkmm2ext/click_box.h>
  59 #include <gtkmm2ext/stateful_button.h>
  60 #include <gtkmm2ext/bindable_button.h>
  61 #include "ardour/ardour.h"
  62 #include "ardour/types.h"
  63 #include "ardour/utils.h"
  64 #include "ardour/session_handle.h"
  65
  66 #include "ardour_dialog.h"
  67 #include "editing.h"
  68 #include "ui_config.h"
  69 #include "window_proxy.h"
  70
  71 class About;
  72 class AddRouteDialog;
  73 class ArdourStartup;
  74 class ArdourKeyboard;
  75 class AudioClock;
  76 class BundleManager;
  77 class ConnectionEditor;
  78 class KeyEditor;
  79 class LocationUIWindow;
  80 class Mixer_UI;
  81 class PublicEditor;
  82 class RCOptionEditor;
  83 class RouteParams_UI;
  84 class SessionOptionEditor;
  85 class ShuttleControl;
  86 class Splash;
  87 class SpeakerDialog;
  88 class ThemeManager;
  89 class TimeInfoBox;
  90 class MidiTracer;
  91 class WindowProxyBase;
  92 class GlobalPortMatrixWindow;
  93 class GUIObjectState;
  94
  95 namespace Gtkmm2ext {
  96         class TearOff;
  97 }
  98
  99 namespace ARDOUR {
 100         class ControlProtocolInfo;
 101         class IO;
 102         class Port;
 103         class Route;
 104         class RouteGroup;
 105         class Location;
 106 }
 107
 108 class ARDOUR_UI : public Gtkmm2ext::UI, public ARDOUR::SessionHandlePtr
 109 {
 110   public:
 111         ARDOUR_UI (int *argcp, char **argvp[]);
 112         ~ARDOUR_UI();
 113
 114         bool run_startup (bool should_be_new, std::string load_template);
 115
 116         void show_splash ();
 117         void hide_splash ();
 118
 119         void launch_chat ();
 120         void launch_manual ();
 121         void launch_reference ();
 122         void show_about ();
 123         void hide_about ();
 124
 125         void idle_load (const std::string& path);
 126         void finish();
 127
 128         int load_session (const std::string& path, const std::string& snapshot, std::string mix_template = std::string());
 129         bool session_loaded;
 130         int build_session (const std::string& path, const std::string& snapshot, ARDOUR::BusProfile&);
 131         bool session_is_new() const { return _session_is_new; }
 132
 133         ARDOUR::Session* the_session() { return _session; }
 134
 135         bool will_create_new_session_automatically() const {
 136                 return _will_create_new_session_automatically;
 137         }
 138
 139         void set_will_create_new_session_automatically (bool yn) {
 140                 _will_create_new_session_automatically = yn;
 141         }
 142
 143         int get_session_parameters (bool quit_on_cancel, bool should_be_new = false, std::string load_template = "");
 144         int  build_session_from_nsd (const std::string& session_name, const std::string& session_path);
 145         bool ask_about_loading_existing_session (const std::string& session_path);
 146
 147         /// @return true if session was successfully unloaded.
 148         int unload_session (bool hide_stuff = false);
 149         void close_session();
 150
 151         int  save_state_canfail (std::string state_name = "", bool switch_to_it = false);
 152         void save_state (const std::string & state_name = "", bool switch_to_it = false);
 153
 154         static ARDOUR_UI *instance () { return theArdourUI; }
 155         static UIConfiguration *config () { return ui_config; }
 156
 157         PublicEditor&     the_editor(){return *editor;}
 158         Mixer_UI* the_mixer() { return mixer; }
 159
 160         void toggle_key_editor ();
 161         void toggle_location_window ();
 162         void toggle_theme_manager ();
 163         void toggle_bundle_manager ();
 164         void toggle_big_clock_window ();
 165         void toggle_speaker_config_window ();
 166         void new_midi_tracer_window ();
 167         void toggle_route_params_window ();
 168         void toggle_editing_space();
 169         void toggle_keep_tearoffs();
 170
 171         Gtk::Tooltips& tooltips() { return _tooltips; }
 172
 173         Gtk::HBox& editor_transport_box() { return _editor_transport_box; }
 174
 175         static PublicEditor* _instance;
 176         static sigc::signal<void,bool> Blink;
 177         static sigc::signal<void>      RapidScreenUpdate;
 178         static sigc::signal<void>      SuperRapidScreenUpdate;
 179         /** Emitted frequently with the audible frame, false, and the edit point as
 180          *  parameters respectively.
 181          */
 182         static sigc::signal<void, framepos_t, bool, framepos_t> Clock;
 183
 184         XMLNode* editor_settings() const;
 185         XMLNode* mixer_settings () const;
 186         XMLNode* keyboard_settings () const;
 187         XMLNode* tearoff_settings (const char*) const;
 188
 189         void save_ardour_state ();
 190         gboolean configure_handler (GdkEventConfigure* conf);
 191
 192         void do_transport_locate (framepos_t, bool);
 193         void halt_on_xrun_message ();
 194         void xrun_handler (framepos_t);
 195         void create_xrun_marker (framepos_t);
 196
 197         GUIObjectState* gui_object_state;
 198
 199         AudioClock* primary_clock;
 200         AudioClock* secondary_clock;
 201         AudioClock* preroll_clock;
 202         AudioClock* postroll_clock;
 203
 204         TimeInfoBox* time_info_box;
 205
 206         void store_clock_modes ();
 207         void restore_clock_modes ();
 208         void reset_main_clocks ();
 209
 210         void synchronize_sync_source_and_video_pullup ();
 211
 212         void add_route (Gtk::Window* float_window);
 213
 214         void session_add_audio_track (
 215                 int input_channels,
 216                 int32_t output_channels,
 217                 ARDOUR::TrackMode mode,
 218                 ARDOUR::RouteGroup* route_group,
 219                 uint32_t how_many,
 220                 std::string const & name_template
 221                 ) {
 222
 223                 session_add_audio_route (true, input_channels, output_channels, mode, route_group, how_many, name_template);
 224         }
 225
 226         void session_add_audio_bus (
 227                 int input_channels,
 228                 int32_t output_channels,
 229                 ARDOUR::RouteGroup* route_group,
 230                 uint32_t how_many,
 231                 std::string const & name_template
 232                 ) {
 233
 234                 session_add_audio_route (false, input_channels, output_channels, ARDOUR::Normal, route_group, how_many, name_template);
 235         }
 236
 237         void session_add_midi_track (
 238                 ARDOUR::RouteGroup* route_group,
 239                 uint32_t how_many,
 240                 std::string const & name_template
 241                 ) {
 242
 243                 session_add_midi_route (true, route_group, how_many, name_template);
 244         }
 245
 246         /*void session_add_midi_bus () {
 247                 session_add_midi_route (false);
 248         }*/
 249
 250         int  create_engine ();
 251         void post_engine ();
 252
 253         gint exit_on_main_window_close (GdkEventAny *);
 254
 255         void maximise_editing_space ();
 256         void restore_editing_space ();
 257
 258         void setup_profile ();
 259         void setup_theme ();
 260         void setup_tooltips ();
 261
 262         void set_shuttle_fract (double);
 263
 264         void add_window_proxy (WindowProxyBase *);
 265         void remove_window_proxy (WindowProxyBase *);
 266
 267   protected:
 268         friend class PublicEditor;
 269
 270         void toggle_clocking ();
 271         void toggle_auto_play ();
 272         void toggle_auto_input ();
 273         void toggle_punch ();
 274         void unset_dual_punch ();
 275         bool ignore_dual_punch;
 276         void toggle_punch_in ();
 277         void toggle_punch_out ();
 278         void show_loop_punch_ruler_and_disallow_hide ();
 279         void reenable_hide_loop_punch_ruler_if_appropriate ();
 280         void toggle_auto_return ();
 281         void toggle_click ();
 282
 283         void toggle_session_auto_loop ();
 284
 285         void toggle_rc_options_window ();
 286         void toggle_session_options_window ();
 287
 288   private:
 289         ArdourStartup*      _startup;
 290         ARDOUR::AudioEngine *engine;
 291         Gtk::Tooltips        _tooltips;
 292
 293         void                goto_editor_window ();
 294         void                goto_mixer_window ();
 295         void                toggle_mixer_window ();
 296         void                toggle_mixer_on_top ();
 297
 298         Gtk::ToggleButton   preroll_button;
 299         Gtk::ToggleButton   postroll_button;
 300
 301         int  setup_windows ();
 302         void setup_transport ();
 303         void setup_clock ();
 304
 305         static ARDOUR_UI *theArdourUI;
 306
 307         void backend_audio_error (bool we_set_params, Gtk::Window* toplevel = 0);
 308         void startup ();
 309         void shutdown ();
 310
 311         int  ask_about_saving_session (const std::vector<std::string>& actions);
 312
 313         /* periodic safety backup, to be precise */
 314         gint autosave_session();
 315         void update_autosave();
 316         sigc::connection _autosave_connection;
 317
 318         void map_transport_state ();
 319         int32_t do_engine_start ();
 320
 321         void engine_halted (const char* reason, bool free_reason);
 322         void engine_stopped ();
 323         void engine_running ();
 324
 325         void use_config ();
 326
 327         static gint _blink  (void *);
 328         void blink ();
 329         gint blink_timeout_tag;
 330         bool blink_on;
 331         void start_blinking ();
 332         void stop_blinking ();
 333
 334         void about_signal_response(int response);
 335
 336         Gtk::VBox     top_packer;
 337
 338         sigc::connection clock_signal_connection;
 339         void         update_clocks ();
 340         void         start_clocking ();
 341         void         stop_clocking ();
 342
 343         void manage_window (Gtk::Window&);
 344
 345         AudioClock*   big_clock;
 346         ActionWindowProxy<Gtk::Window>* big_clock_window;
 347         int original_big_clock_width;
 348         int original_big_clock_height;
 349         double original_big_clock_font_size;
 350
 351         void big_clock_size_allocate (Gtk::Allocation&);
 352         bool idle_big_clock_text_resizer (int width, int height);
 353         void big_clock_realized ();
 354         bool big_clock_resize_in_progress;
 355         int  big_clock_height;
 356
 357         void float_big_clock (Gtk::Window* parent);
 358         bool main_window_state_event_handler (GdkEventWindowState*, bool window_was_editor);
 359
 360         ActionWindowProxy<SpeakerDialog>* speaker_config_window;
 361
 362         void update_transport_clocks (framepos_t pos);
 363         void record_state_changed ();
 364
 365         std::list<MidiTracer*> _midi_tracer_windows;
 366
 367         /* Transport Control */
 368
 369         void detach_tearoff (Gtk::Box* parent, Gtk::Widget* contents);
 370         void reattach_tearoff (Gtk::Box* parent, Gtk::Widget* contents, int32_t order);
 371
 372         Gtkmm2ext::TearOff*      transport_tearoff;
 373         Gtk::Frame               transport_frame;
 374         Gtk::HBox                transport_tearoff_hbox;
 375         Gtk::HBox               _editor_transport_box;
 376         Gtk::HBox                transport_hbox;
 377         Gtk::Fixed               transport_base;
 378         Gtk::Fixed               transport_button_base;
 379         Gtk::Frame               transport_button_frame;
 380         Gtk::HBox                transport_button_hbox;
 381         Gtk::VBox                transport_button_vbox;
 382         Gtk::HBox                transport_option_button_hbox;
 383         Gtk::VBox                transport_option_button_vbox;
 384         Gtk::HBox                transport_clock_hbox;
 385         Gtk::VBox                transport_clock_vbox;
 386         Gtk::HBox                primary_clock_hbox;
 387         Gtk::HBox                secondary_clock_hbox;
 388
 389         struct TransportControllable : public PBD::Controllable {
 390             enum ToggleType {
 391                     Roll = 0,
 392                     Stop,
 393                     RecordEnable,
 394                     GotoStart,
 395                     GotoEnd,
 396                     AutoLoop,
 397                     PlaySelection,
 398             };
 399
 400             TransportControllable (std::string name, ARDOUR_UI&, ToggleType);
 401             void set_value (double);
 402             double get_value (void) const;
 403
 404             void set_id (const std::string&);
 405
 406             ARDOUR_UI& ui;
 407             ToggleType type;
 408         };
 409
 410         boost::shared_ptr<TransportControllable> roll_controllable;
 411         boost::shared_ptr<TransportControllable> stop_controllable;
 412         boost::shared_ptr<TransportControllable> goto_start_controllable;
 413         boost::shared_ptr<TransportControllable> goto_end_controllable;
 414         boost::shared_ptr<TransportControllable> auto_loop_controllable;
 415         boost::shared_ptr<TransportControllable> play_selection_controllable;
 416         boost::shared_ptr<TransportControllable> rec_controllable;
 417         boost::shared_ptr<TransportControllable> shuttle_controllable;
 418         boost::shared_ptr<TransportControllable> join_play_range_controllable;
 419
 420         void set_transport_controllable_state (const XMLNode&);
 421         XMLNode& get_transport_controllable_state ();
 422
 423         BindableButton roll_button;
 424         BindableButton stop_button;
 425         BindableButton goto_start_button;
 426         BindableButton goto_end_button;
 427         BindableButton auto_loop_button;
 428         BindableButton play_selection_button;
 429         BindableButton rec_button;
 430         BindableToggleButton join_play_range_button;
 431
 432         void toggle_external_sync ();
 433         void toggle_time_master ();
 434         void toggle_video_sync ();
 435
 436         ShuttleControl* shuttle_box;
 437
 438         Gtkmm2ext::StatefulToggleButton auto_return_button;
 439         Gtkmm2ext::StatefulToggleButton auto_play_button;
 440         Gtkmm2ext::StatefulToggleButton auto_input_button;
 441         Gtkmm2ext::StatefulToggleButton click_button;
 442         Gtkmm2ext::StatefulToggleButton time_master_button;
 443         Gtkmm2ext::StatefulToggleButton sync_button;
 444
 445         Gtk::ToggleButton auditioning_alert_button;
 446         Gtk::ToggleButton solo_alert_button;
 447
 448         Gtk::VBox alert_box;
 449
 450         void solo_blink (bool);
 451         void sync_blink (bool);
 452         void audition_blink (bool);
 453
 454         void soloing_changed (bool);
 455         void auditioning_changed (bool);
 456         void _auditioning_changed (bool);
 457
 458         bool solo_alert_press (GdkEventButton* ev);
 459         bool audition_alert_press (GdkEventButton* ev);
 460
 461         void big_clock_value_changed ();
 462         void primary_clock_value_changed ();
 463         void secondary_clock_value_changed ();
 464
 465         /* called by Blink signal */
 466
 467         void transport_rec_enable_blink (bool onoff);
 468
 469         Gtk::Menu*        session_popup_menu;
 470
 471         struct RecentSessionModelColumns : public Gtk::TreeModel::ColumnRecord {
 472             RecentSessionModelColumns() {
 473                     add (visible_name);
 474                     add (fullpath);
 475             }
 476             Gtk::TreeModelColumn<std::string> visible_name;
 477             Gtk::TreeModelColumn<std::string> fullpath;
 478         };
 479
 480         RecentSessionModelColumns    recent_session_columns;
 481         Gtk::TreeView                recent_session_display;
 482         Glib::RefPtr<Gtk::TreeStore> recent_session_model;
 483
 484         ArdourDialog*     session_selector_window;
 485         Gtk::FileChooserDialog* open_session_selector;
 486
 487         void build_session_selector();
 488         void redisplay_recent_sessions();
 489         void recent_session_row_activated (const Gtk::TreePath& path, Gtk::TreeViewColumn* col);
 490
 491         struct RecentSessionsSorter {
 492                 bool operator() (std::pair<std::string,std::string> a, std::pair<std::string,std::string> b) const {
 493                     return cmp_nocase(a.first, b.first) == -1;
 494             }
 495         };
 496
 497         /* menu bar and associated stuff */
 498
 499         Gtk::MenuBar* menu_bar;
 500         Gtk::EventBox menu_bar_base;
 501         Gtk::HBox     menu_hbox;
 502
 503         void use_menubar_as_top_menubar ();
 504         void build_menu_bar ();
 505
 506         Gtk::Label   wall_clock_label;
 507         Gtk::EventBox wall_clock_box;
 508         gint update_wall_clock ();
 509
 510         Gtk::Label   disk_space_label;
 511         Gtk::EventBox disk_space_box;
 512         void update_disk_space ();
 513
 514         Gtk::Label   cpu_load_label;
 515         Gtk::EventBox cpu_load_box;
 516         void update_cpu_load ();
 517
 518         Gtk::Label   buffer_load_label;
 519         Gtk::EventBox buffer_load_box;
 520         void update_buffer_load ();
 521
 522         Gtk::Label   sample_rate_label;
 523         Gtk::EventBox sample_rate_box;
 524         void update_sample_rate (ARDOUR::framecnt_t);
 525
 526         Gtk::Label    format_label;
 527         Gtk::EventBox format_box;
 528         void update_format ();
 529
 530         gint every_second ();
 531         gint every_point_one_seconds ();
 532         gint every_point_zero_one_seconds ();
 533
 534         sigc::connection second_connection;
 535         sigc::connection point_one_second_connection;
 536         sigc::connection point_oh_five_second_connection;
 537         sigc::connection point_zero_one_second_connection;
 538
 539         gint session_menu (GdkEventButton *);
 540
 541         bool _will_create_new_session_automatically;
 542
 543         void open_session ();
 544         void open_recent_session ();
 545         void save_template ();
 546
 547         void edit_metadata ();
 548         void import_metadata ();
 549
 550         void session_add_audio_route (bool, int32_t, int32_t, ARDOUR::TrackMode, ARDOUR::RouteGroup *, uint32_t, std::string const &);
 551         void session_add_midi_route (bool, ARDOUR::RouteGroup *, uint32_t, std::string const &);
 552
 553         void set_transport_sensitivity (bool);
 554
 555         void remove_last_capture ();
 556
 557         void transport_goto_zero ();
 558         void transport_goto_start ();
 559         void transport_goto_end ();
 560         void transport_goto_wallclock ();
 561         void transport_stop ();
 562         void transport_stop_and_forget_capture ();
 563         void transport_record (bool roll);
 564         void transport_roll ();
 565         void transport_play_selection();
 566         void transport_forward (int option);
 567         void transport_rewind (int option);
 568         void transport_loop ();
 569         void toggle_roll (bool with_abort, bool roll_out_of_bounded_mode);
 570
 571         bool _session_is_new;
 572         void set_session (ARDOUR::Session *);
 573         void connect_dependents_to_session (ARDOUR::Session *);
 574         void we_have_dependents ();
 575
 576         void setup_session_options ();
 577
 578         guint32  last_key_press_time;
 579
 580         void snapshot_session (bool switch_to_it);
 581         void rename_session ();
 582
 583         Mixer_UI   *mixer;
 584         int         create_mixer ();
 585
 586         PublicEditor     *editor;
 587         int         create_editor ();
 588
 589         RouteParams_UI *route_params;
 590         int             create_route_params ();
 591
 592         BundleManager *bundle_manager;
 593         void create_bundle_manager ();
 594
 595         ActionWindowProxy<LocationUIWindow>* location_ui;
 596         int               create_location_ui ();
 597         void              handle_locations_change (ARDOUR::Location*);
 598
 599         ActionWindowProxy<GlobalPortMatrixWindow>* _global_port_matrix[ARDOUR::DataType::num_types];
 600         void toggle_global_port_matrix (ARDOUR::DataType);
 601
 602         static UIConfiguration *ui_config;
 603         ThemeManager *theme_manager;
 604
 605         /* Key bindings editor */
 606
 607         KeyEditor *key_editor;
 608
 609         /* RC Options window */
 610
 611         RCOptionEditor *rc_option_editor;
 612
 613         SessionOptionEditor *session_option_editor;
 614
 615         /* route dialog */
 616
 617         AddRouteDialog *add_route_dialog;
 618
 619         /* Keyboard Handling */
 620
 621         ArdourKeyboard* keyboard;
 622
 623         /* Keymap handling */
 624
 625         void install_actions ();
 626
 627         void toggle_record_enable (uint32_t);
 628
 629         uint32_t rec_enabled_streams;
 630         void count_recenabled_streams (ARDOUR::Route&);
 631
 632         About* about;
 633         Splash* splash;
 634         void pop_back_splash ();
 635
 636         /* cleanup */
 637
 638         Gtk::MenuItem *cleanup_item;
 639
 640         void display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title,
 641                                       const std::string& plural_msg, const std::string& singular_msg);
 642         void cleanup ();
 643         void flush_trash ();
 644
 645         bool have_configure_timeout;
 646         ARDOUR::microseconds_t last_configure_time;
 647         gint configure_timeout ();
 648
 649         ARDOUR::microseconds_t last_peak_grab;
 650         ARDOUR::microseconds_t last_shuttle_request;
 651
 652         bool have_disk_speed_dialog_displayed;
 653         void disk_speed_dialog_gone (int ignored_response, Gtk::MessageDialog*);
 654         void disk_overrun_handler ();
 655         void disk_underrun_handler ();
 656
 657         void session_dialog (std::string);
 658         int pending_state_dialog ();
 659         int sr_mismatch_dialog (ARDOUR::framecnt_t, ARDOUR::framecnt_t);
 660
 661         void disconnect_from_jack ();
 662         void reconnect_to_jack ();
 663         void set_jack_buffer_size (ARDOUR::pframes_t);
 664
 665         Gtk::MenuItem* jack_disconnect_item;
 666         Gtk::MenuItem* jack_reconnect_item;
 667         Gtk::Menu*     jack_bufsize_menu;
 668
 669         Glib::RefPtr<Gtk::ActionGroup> common_actions;
 670
 671         void editor_realized ();
 672
 673         std::vector<std::string> positional_sync_strings;
 674
 675         void toggle_send_midi_feedback ();
 676         void toggle_use_mmc ();
 677         void toggle_send_mmc ();
 678         void toggle_send_mtc ();
 679         void toggle_send_midi_clock ();
 680
 681         void toggle_use_osc ();
 682
 683         void parameter_changed (std::string);
 684         void session_parameter_changed (std::string);
 685
 686         bool first_idle ();
 687
 688         void no_memory_warning ();
 689         void check_memory_locking ();
 690
 691         bool check_audioengine();
 692         void audioengine_setup ();
 693
 694         void display_message (const char *prefix, gint prefix_len,
 695                         Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
 696                         const char *msg);
 697         Gtk::Label status_bar_label;
 698         bool status_bar_button_press (GdkEventButton*);
 699         Gtk::ToggleButton error_log_button;
 700
 701         void loading_message (const std::string& msg);
 702         void end_loading_messages ();
 703
 704         void toggle_translations ();
 705
 706         PBD::ScopedConnectionList forever_connections;
 707
 708         void step_edit_status_change (bool);
 709
 710         /* these are used only in response to a platform-specific "ShouldQuit" signal
 711          */
 712         bool idle_finish ();
 713         void queue_finish ();
 714
 715         std::list<WindowProxyBase*> _window_proxies;
 716
 717         int missing_file (ARDOUR::Session*s, std::string str, ARDOUR::DataType type);
 718         int ambiguous_file (std::string file, std::string path, std::vector<std::string> hits);
 719
 720         bool click_button_clicked (GdkEventButton *);
 721 };
 722
 723 #endif /* __ardour_gui_h__ */
 724