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/session.h"
  63 #include "ardour/types.h"
  64
  65 #include "audio_clock.h"
  66 #include "ardour_dialog.h"
  67 #include "editing.h"
  68 #include "ui_config.h"
  69
  70 class AudioClock;
  71 class PublicEditor;
  72 class Keyboard;
  73 class RCOptionEditor;
  74 class SessionOptionEditor;
  75 class KeyEditor;
  76 class Mixer_UI;
  77 class ConnectionEditor;
  78 class RouteParams_UI;
  79 class About;
  80 class Splash;
  81 class AddRouteDialog;
  82 class LocationUI;
  83 class ThemeManager;
  84 class BundleManager;
  85 class ArdourStartup;
  86
  87 namespace Gtkmm2ext {
  88         class TearOff;
  89 }
  90
  91 namespace ARDOUR {
  92         class Route;
  93         class Port;
  94         class IO;
  95         class ControlProtocolInfo;
  96 }
  97
  98 extern sigc::signal<void>  ColorsChanged;
  99 extern sigc::signal<void>  DPIReset;
 100
 101 class ARDOUR_UI : public Gtkmm2ext::UI
 102 {
 103   public:
 104         ARDOUR_UI (int *argcp, char **argvp[]);
 105         ~ARDOUR_UI();
 106
 107         bool run_startup (bool should_be_new);
 108
 109         void show ();
 110         bool shown() { return shown_flag; }
 111
 112         void show_splash ();
 113         void hide_splash ();
 114
 115         void show_about ();
 116         void hide_about ();
 117
 118         void idle_load (const Glib::ustring& path);
 119         void finish();
 120
 121         int load_session (const Glib::ustring& path, const Glib::ustring& snapshot, Glib::ustring mix_template = Glib::ustring());
 122         bool session_loaded;
 123         int build_session (const Glib::ustring& path, const Glib::ustring& snapshot,
 124                            uint32_t ctl_chns,
 125                            uint32_t master_chns,
 126                            ARDOUR::AutoConnectOption input_connect,
 127                            ARDOUR::AutoConnectOption output_connect,
 128                            uint32_t nphysin,
 129                            uint32_t nphysout,
 130                            nframes_t initial_length);
 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);
 144         void parse_cmdline_path (const Glib::ustring& cmdline_path, Glib::ustring& session_name, Glib::ustring& session_path, bool& existing_session);
 145         int  load_cmdline_session (const Glib::ustring& session_name, const Glib::ustring& session_path, bool& existing_session);
 146         int  build_session_from_nsd (const Glib::ustring& session_name, const Glib::ustring& session_path);
 147         bool ask_about_loading_existing_session (const Glib::ustring& session_path);
 148
 149         /// @return true if session was successfully unloaded.
 150         int unload_session (bool hide_stuff = false);
 151         void close_session();
 152
 153         int  save_state_canfail (std::string state_name = "");
 154         void save_state (const std::string & state_name = "");
 155
 156         static double gain_to_slider_position (ARDOUR::gain_t g);
 157         static ARDOUR::gain_t slider_position_to_gain (double pos);
 158
 159         static ARDOUR_UI *instance () { return theArdourUI; }
 160         static UIConfiguration *config () { return ui_config; }
 161
 162         PublicEditor&     the_editor(){return *editor;}
 163         Mixer_UI* the_mixer() { return mixer; }
 164
 165         void toggle_key_editor ();
 166         void toggle_location_window ();
 167         void toggle_theme_manager ();
 168         void toggle_bundle_manager ();
 169         void toggle_big_clock_window ();
 170         void toggle_route_params_window ();
 171         void toggle_editing_space();
 172
 173         Gtk::Tooltips& tooltips() { return _tooltips; }
 174
 175         static sigc::signal<void,bool> Blink;
 176         static sigc::signal<void>      RapidScreenUpdate;
 177         static sigc::signal<void>      SuperRapidScreenUpdate;
 178         static sigc::signal<void,nframes_t, bool, nframes_t> Clock;
 179
 180         XMLNode* editor_settings() const;
 181         XMLNode* mixer_settings () const;
 182         XMLNode* keyboard_settings () const;
 183
 184         void save_ardour_state ();
 185         gboolean configure_handler (GdkEventConfigure* conf);
 186
 187         void do_transport_locate (nframes_t position);
 188         void halt_on_xrun_message ();
 189         void xrun_handler (nframes_t);
 190         void create_xrun_marker (nframes_t);
 191
 192         AudioClock primary_clock;
 193         AudioClock secondary_clock;
 194         AudioClock preroll_clock;
 195         AudioClock postroll_clock;
 196
 197         void store_clock_modes ();
 198         void restore_clock_modes ();
 199
 200         void add_route (Gtk::Window* float_window);
 201
 202         void session_add_audio_track (int input_channels, int32_t output_channels, ARDOUR::TrackMode mode, ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 203                 session_add_audio_route (true, input_channels, output_channels, mode, route_group, how_many);
 204         }
 205
 206         void session_add_audio_bus (int input_channels, int32_t output_channels, ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 207                 session_add_audio_route (false, input_channels, output_channels, ARDOUR::Normal, route_group, how_many);
 208         }
 209
 210         void session_add_midi_track (ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 211                 session_add_midi_route (true, route_group, how_many);
 212         }
 213
 214         /*void session_add_midi_bus () {
 215                 session_add_midi_route (false);
 216         }*/
 217
 218         int  create_engine ();
 219         void post_engine ();
 220
 221         gint exit_on_main_window_close (GdkEventAny *);
 222
 223         void maximise_editing_space ();
 224         void restore_editing_space ();
 225
 226         void setup_profile ();
 227         void setup_theme ();
 228
 229         void set_shuttle_fract (double);
 230
 231   protected:
 232         friend class PublicEditor;
 233
 234         void toggle_clocking ();
 235         void toggle_auto_play ();
 236         void toggle_auto_input ();
 237         void toggle_punch ();
 238         void unset_dual_punch ();
 239         bool ignore_dual_punch;
 240         void toggle_punch_in ();
 241         void toggle_punch_out ();
 242         void show_loop_punch_ruler_and_disallow_hide ();
 243         void reenable_hide_loop_punch_ruler_if_appropriate ();
 244         void toggle_auto_return ();
 245         void toggle_click ();
 246
 247         void toggle_session_auto_loop ();
 248
 249         void toggle_rc_options_window ();
 250         void toggle_session_options_window ();
 251
 252   private:
 253         ArdourStartup*      _startup;
 254         ARDOUR::AudioEngine *engine;
 255         ARDOUR::Session      *session;
 256         Gtk::Tooltips        _tooltips;
 257
 258         void                goto_editor_window ();
 259         void                goto_mixer_window ();
 260         void                toggle_editor_mixer_on_top ();
 261         bool                _mixer_on_top;
 262
 263         Gtk::ToggleButton   preroll_button;
 264         Gtk::ToggleButton   postroll_button;
 265
 266         int  setup_windows ();
 267         void setup_transport ();
 268         void setup_clock ();
 269
 270         static ARDOUR_UI *theArdourUI;
 271
 272         void backend_audio_error (bool we_set_params, Gtk::Window* toplevel = 0);
 273         void startup ();
 274         void shutdown ();
 275
 276         int  ask_about_saving_session (const std::string & why);
 277
 278         /* periodic safety backup, to be precise */
 279         gint autosave_session();
 280         void update_autosave();
 281         sigc::connection _autosave_connection;
 282
 283         void queue_transport_change ();
 284         void map_transport_state ();
 285         int32_t do_engine_start ();
 286
 287         void engine_halted ();
 288         void engine_stopped ();
 289         void engine_running ();
 290
 291         void use_config ();
 292
 293         static gint _blink  (void *);
 294         void blink ();
 295         gint blink_timeout_tag;
 296         bool blink_on;
 297         void start_blinking ();
 298         void stop_blinking ();
 299
 300         void about_signal_response(int response);
 301
 302   private:
 303         Gtk::VBox     top_packer;
 304
 305         sigc::connection clock_signal_connection;
 306         void         update_clocks ();
 307         void         start_clocking ();
 308         void         stop_clocking ();
 309
 310         void manage_window (Gtk::Window&);
 311
 312         AudioClock   big_clock;
 313         Gtk::Window* big_clock_window;
 314
 315         void float_big_clock (Gtk::Window* parent);
 316         bool main_window_state_event_handler (GdkEventWindowState*, bool window_was_editor);
 317
 318         void update_transport_clocks (nframes_t pos);
 319         void record_state_changed ();
 320
 321         /* Transport Control */
 322
 323         void detach_tearoff (Gtk::Box* parent, Gtk::Widget* contents);
 324         void reattach_tearoff (Gtk::Box* parent, Gtk::Widget* contents, int32_t order);
 325
 326         Gtkmm2ext::TearOff*      transport_tearoff;
 327         Gtk::Frame               transport_frame;
 328         Gtk::HBox                transport_tearoff_hbox;
 329         Gtk::HBox                transport_hbox;
 330         Gtk::Fixed               transport_base;
 331         Gtk::Fixed               transport_button_base;
 332         Gtk::Frame               transport_button_frame;
 333         Gtk::HBox                transport_button_hbox;
 334         Gtk::VBox                transport_button_vbox;
 335         Gtk::HBox                transport_option_button_hbox;
 336         Gtk::VBox                transport_option_button_vbox;
 337         Gtk::HBox                transport_clock_hbox;
 338         Gtk::VBox                transport_clock_vbox;
 339         Gtk::HBox                primary_clock_hbox;
 340         Gtk::HBox                secondary_clock_hbox;
 341
 342
 343         struct TransportControllable : public PBD::Controllable {
 344             enum ToggleType {
 345                     Roll = 0,
 346                     Stop,
 347                     RecordEnable,
 348                     GotoStart,
 349                     GotoEnd,
 350                     AutoLoop,
 351                     PlaySelection,
 352                     ShuttleControl
 353
 354             };
 355
 356             TransportControllable (std::string name, ARDOUR_UI&, ToggleType);
 357             void set_value (float);
 358             float get_value (void) const;
 359
 360             void set_id (const std::string&);
 361
 362             ARDOUR_UI& ui;
 363             ToggleType type;
 364         };
 365
 366         boost::shared_ptr<TransportControllable> roll_controllable;
 367         boost::shared_ptr<TransportControllable> stop_controllable;
 368         boost::shared_ptr<TransportControllable> goto_start_controllable;
 369         boost::shared_ptr<TransportControllable> goto_end_controllable;
 370         boost::shared_ptr<TransportControllable> auto_loop_controllable;
 371         boost::shared_ptr<TransportControllable> play_selection_controllable;
 372         boost::shared_ptr<TransportControllable> rec_controllable;
 373         boost::shared_ptr<TransportControllable> shuttle_controllable;
 374         BindingProxy shuttle_controller_binding_proxy;
 375
 376         void set_transport_controllable_state (const XMLNode&);
 377         XMLNode& get_transport_controllable_state ();
 378
 379         BindableButton roll_button;
 380         BindableButton stop_button;
 381         BindableButton goto_start_button;
 382         BindableButton goto_end_button;
 383         BindableButton auto_loop_button;
 384         BindableButton play_selection_button;
 385         BindableButton rec_button;
 386
 387         Gtk::ComboBoxText sync_option_combo;
 388
 389         void sync_option_changed ();
 390         void toggle_time_master ();
 391         void toggle_video_sync ();
 392
 393         Gtk::DrawingArea  shuttle_box;
 394         Gtk::EventBox     speed_display_box;
 395         Gtk::Label        speed_display_label;
 396         Gtk::Button       shuttle_units_button;
 397         Gtk::ComboBoxText shuttle_style_button;
 398         Gtk::Menu*        shuttle_unit_menu;
 399         Gtk::Menu*        shuttle_style_menu;
 400         float             shuttle_max_speed;
 401         Gtk::Menu*        shuttle_context_menu;
 402
 403         void build_shuttle_context_menu ();
 404         void show_shuttle_context_menu ();
 405         void shuttle_style_changed();
 406         void shuttle_unit_clicked ();
 407         void set_shuttle_max_speed (float);
 408         void update_speed_display ();
 409         float last_speed_displayed;
 410
 411         gint shuttle_box_button_press (GdkEventButton*);
 412         gint shuttle_box_button_release (GdkEventButton*);
 413         gint shuttle_box_scroll (GdkEventScroll*);
 414         gint shuttle_box_motion (GdkEventMotion*);
 415         gint shuttle_box_expose (GdkEventExpose*);
 416         gint mouse_shuttle (double x, bool force);
 417         void use_shuttle_fract (bool force);
 418
 419         bool   shuttle_grabbed;
 420         double shuttle_fract;
 421
 422         Gtkmm2ext::StatefulToggleButton punch_in_button;
 423         Gtkmm2ext::StatefulToggleButton punch_out_button;
 424         Gtkmm2ext::StatefulToggleButton auto_return_button;
 425         Gtkmm2ext::StatefulToggleButton auto_play_button;
 426         Gtkmm2ext::StatefulToggleButton auto_input_button;
 427         Gtkmm2ext::StatefulToggleButton click_button;
 428         Gtkmm2ext::StatefulToggleButton time_master_button;
 429
 430         Gtk::ToggleButton auditioning_alert_button;
 431         Gtk::ToggleButton solo_alert_button;
 432
 433         Gtk::VBox alert_box;
 434
 435         void solo_blink (bool);
 436         void audition_blink (bool);
 437
 438         void soloing_changed (bool);
 439         void auditioning_changed (bool);
 440         void _auditioning_changed (bool);
 441
 442         void solo_alert_toggle ();
 443         void audition_alert_toggle ();
 444
 445         void big_clock_value_changed ();
 446         void primary_clock_value_changed ();
 447         void secondary_clock_value_changed ();
 448
 449         /* called by Blink signal */
 450
 451         void transport_rec_enable_blink (bool onoff);
 452
 453         Gtk::Menu*        session_popup_menu;
 454
 455         struct RecentSessionModelColumns : public Gtk::TreeModel::ColumnRecord {
 456             RecentSessionModelColumns() {
 457                     add (visible_name);
 458                     add (fullpath);
 459             }
 460             Gtk::TreeModelColumn<Glib::ustring> visible_name;
 461             Gtk::TreeModelColumn<Glib::ustring> fullpath;
 462         };
 463
 464         RecentSessionModelColumns    recent_session_columns;
 465         Gtk::TreeView                recent_session_display;
 466         Glib::RefPtr<Gtk::TreeStore> recent_session_model;
 467
 468         ArdourDialog*     session_selector_window;
 469         Gtk::FileChooserDialog* open_session_selector;
 470
 471         void build_session_selector();
 472         void redisplay_recent_sessions();
 473         void recent_session_row_activated (const Gtk::TreePath& path, Gtk::TreeViewColumn* col);
 474
 475         struct RecentSessionsSorter {
 476                 bool operator() (std::pair<std::string,std::string> a, std::pair<std::string,std::string> b) const {
 477                     return cmp_nocase(a.first, b.first) == -1;
 478             }
 479         };
 480
 481         /* menu bar and associated stuff */
 482
 483         Gtk::MenuBar* menu_bar;
 484         Gtk::EventBox menu_bar_base;
 485         Gtk::HBox     menu_hbox;
 486
 487         void use_menubar_as_top_menubar ();
 488         void build_menu_bar ();
 489
 490         Gtk::Label   wall_clock_label;
 491         Gtk::EventBox wall_clock_box;
 492         gint update_wall_clock ();
 493
 494         Gtk::Label   disk_space_label;
 495         Gtk::EventBox disk_space_box;
 496         void update_disk_space ();
 497
 498         Gtk::Label   cpu_load_label;
 499         Gtk::EventBox cpu_load_box;
 500         void update_cpu_load ();
 501
 502         Gtk::Label   buffer_load_label;
 503         Gtk::EventBox buffer_load_box;
 504         void update_buffer_load ();
 505
 506         Gtk::Label   sample_rate_label;
 507         Gtk::EventBox sample_rate_box;
 508         void update_sample_rate (nframes_t);
 509
 510         gint every_second ();
 511         gint every_point_one_seconds ();
 512         gint every_point_zero_one_seconds ();
 513
 514         sigc::connection second_connection;
 515         sigc::connection point_one_second_connection;
 516         sigc::connection point_oh_five_second_connection;
 517         sigc::connection point_zero_one_second_connection;
 518
 519         gint session_menu (GdkEventButton *);
 520
 521         bool _will_create_new_session_automatically;
 522
 523         void open_session ();
 524         void open_recent_session ();
 525         void save_template ();
 526
 527         void edit_metadata ();
 528         void import_metadata ();
 529
 530         void session_add_audio_route (bool disk, int32_t input_channels, int32_t output_channels, ARDOUR::TrackMode mode, ARDOUR::RouteGroup *, uint32_t how_many);
 531         void session_add_midi_route (bool disk, ARDOUR::RouteGroup *, uint32_t how_many);
 532
 533         void set_transport_sensitivity (bool);
 534
 535         void remove_last_capture ();
 536
 537         void transport_goto_zero ();
 538         void transport_goto_start ();
 539         void transport_goto_end ();
 540         void transport_goto_wallclock ();
 541         void transport_stop ();
 542         void transport_stop_and_forget_capture ();
 543         void transport_record (bool roll);
 544         void transport_roll ();
 545         void transport_play_selection();
 546         void transport_forward (int option);
 547         void transport_rewind (int option);
 548         void transport_loop ();
 549
 550         void transport_rolling ();
 551         void transport_rewinding ();
 552         void transport_forwarding ();
 553         void transport_stopped ();
 554
 555         bool _session_is_new;
 556         void connect_to_session (ARDOUR::Session *);
 557         void connect_dependents_to_session (ARDOUR::Session *);
 558         void we_have_dependents ();
 559
 560         void setup_session_options ();
 561
 562         guint32  last_key_press_time;
 563
 564         void snapshot_session ();
 565
 566         Mixer_UI   *mixer;
 567         int         create_mixer ();
 568
 569         PublicEditor     *editor;
 570         int         create_editor ();
 571
 572         RouteParams_UI *route_params;
 573         int             create_route_params ();
 574
 575         BundleManager *bundle_manager;
 576         void create_bundle_manager ();
 577
 578         LocationUI *location_ui;
 579         int         create_location_ui ();
 580         void        handle_locations_change (ARDOUR::Location*);
 581
 582         static UIConfiguration *ui_config;
 583         ThemeManager *theme_manager;
 584
 585         /* Key bindings editor */
 586
 587         KeyEditor *key_editor;
 588
 589         /* RC Options window */
 590
 591         RCOptionEditor *rc_option_editor;
 592
 593         SessionOptionEditor *session_option_editor;
 594
 595         /* route dialog */
 596
 597         AddRouteDialog *add_route_dialog;
 598
 599         /* Keyboard Handling */
 600
 601         Keyboard* keyboard;
 602
 603         /* Keymap handling */
 604
 605         void install_actions ();
 606
 607         void toggle_record_enable (uint32_t);
 608
 609         uint32_t rec_enabled_streams;
 610         void count_recenabled_streams (ARDOUR::Route&);
 611
 612         About* about;
 613         Splash* splash;
 614         void pop_back_splash ();
 615         bool shown_flag;
 616
 617         /* cleanup */
 618
 619         Gtk::MenuItem *cleanup_item;
 620
 621         void display_cleanup_results (ARDOUR::Session::cleanup_report& rep, const gchar* list_title,
 622                                       const std::string& plural_msg, const std::string& singular_msg);
 623         void cleanup ();
 624         void flush_trash ();
 625
 626         bool have_configure_timeout;
 627         ARDOUR::microseconds_t last_configure_time;
 628         gint configure_timeout ();
 629
 630         ARDOUR::microseconds_t last_peak_grab;
 631         ARDOUR::microseconds_t last_shuttle_request;
 632
 633         struct DiskBufferStat {
 634             time_t when;
 635             uint32_t capture;
 636             uint32_t playback;
 637
 638             DiskBufferStat (time_t w, uint32_t c, uint32_t p)
 639             : when (w), capture (c), playback (p) {}
 640         };
 641
 642         std::list<DiskBufferStat> disk_buffer_stats;
 643         void push_buffer_stats (uint32_t, uint32_t);
 644         void write_buffer_stats ();
 645
 646         bool have_disk_speed_dialog_displayed;
 647         void disk_speed_dialog_gone (int ignored_response, Gtk::MessageDialog*);
 648         void disk_overrun_handler ();
 649         void disk_underrun_handler ();
 650
 651         void session_dialog (std::string);
 652         int pending_state_dialog ();
 653         int sr_mismatch_dialog (nframes_t, nframes_t);
 654
 655         void disconnect_from_jack ();
 656         void reconnect_to_jack ();
 657         void set_jack_buffer_size (nframes_t);
 658
 659         Gtk::MenuItem* jack_disconnect_item;
 660         Gtk::MenuItem* jack_reconnect_item;
 661         Gtk::Menu*     jack_bufsize_menu;
 662
 663         Glib::RefPtr<Gtk::ActionGroup> common_actions;
 664
 665         void editor_realized ();
 666
 667         std::vector<std::string> positional_sync_strings;
 668
 669         void toggle_send_midi_feedback ();
 670         void toggle_use_mmc ();
 671         void toggle_send_mmc ();
 672         void toggle_send_mtc ();
 673         void toggle_send_midi_clock ();
 674
 675         void toggle_use_osc ();
 676
 677         void mtc_port_changed ();
 678         void parameter_changed (std::string);
 679
 680         bool first_idle ();
 681
 682         void no_memory_warning ();
 683         void check_memory_locking ();
 684
 685         bool check_audioengine();
 686         void audioengine_setup ();
 687
 688         void display_message (const char *prefix, gint prefix_len,
 689                         Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
 690                         const char *msg);
 691         Gtk::Label status_bar_label;
 692         Gtk::ToggleButton error_log_button;
 693
 694         void loading_message (const std::string& msg);
 695         void end_loading_messages ();
 696
 697         void platform_specific ();
 698         void platform_setup ();
 699         void fontconfig_dialog ();
 700 };
 701
 702 #endif /* __ardour_gui_h__ */
 703