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 "audio_clock.h"
  67 #include "ardour_dialog.h"
  68 #include "editing.h"
  69 #include "ui_config.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 Splash;
  86 class ThemeManager;
  87 class MidiTracer;
  88
  89 namespace Gtkmm2ext {
  90         class TearOff;
  91 }
  92
  93 namespace ARDOUR {
  94         class ControlProtocolInfo;
  95         class IO;
  96         class Port;
  97         class Route;
  98         class RouteGroup;
  99         class Location;
 100 }
 101
 102 extern sigc::signal<void>  ColorsChanged;
 103 extern sigc::signal<void>  DPIReset;
 104
 105 class ARDOUR_UI : public Gtkmm2ext::UI, public ARDOUR::SessionHandlePtr
 106 {
 107   public:
 108         ARDOUR_UI (int *argcp, char **argvp[]);
 109         ~ARDOUR_UI();
 110
 111         bool run_startup (bool should_be_new, std::string load_template);
 112
 113         void show ();
 114         bool shown() { return shown_flag; }
 115
 116         void show_splash ();
 117         void hide_splash ();
 118
 119         void launch_chat ();
 120         void show_about ();
 121         void hide_about ();
 122
 123         void idle_load (const Glib::ustring& path);
 124         void finish();
 125
 126         int load_session (const Glib::ustring& path, const Glib::ustring& snapshot, Glib::ustring mix_template = Glib::ustring());
 127         bool session_loaded;
 128         int build_session (const Glib::ustring& path, const Glib::ustring& snapshot, ARDOUR::BusProfile&);
 129         bool session_is_new() const { return _session_is_new; }
 130
 131         ARDOUR::Session* the_session() { return _session; }
 132
 133         bool will_create_new_session_automatically() const {
 134                 return _will_create_new_session_automatically;
 135         }
 136
 137         void set_will_create_new_session_automatically (bool yn) {
 138                 _will_create_new_session_automatically = yn;
 139         }
 140
 141         int get_session_parameters (bool quit_on_cancel, bool should_be_new = false, std::string load_template = "");
 142         void parse_cmdline_path (const Glib::ustring& cmdline_path, Glib::ustring& session_name, Glib::ustring& session_path, bool& existing_session);
 143         int  load_cmdline_session (const Glib::ustring& session_name, const Glib::ustring& session_path, bool& existing_session);
 144         int  build_session_from_nsd (const Glib::ustring& session_name, const Glib::ustring& session_path);
 145         bool ask_about_loading_existing_session (const Glib::ustring& 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 double gain_to_slider_position (ARDOUR::gain_t g);
 155         static ARDOUR::gain_t slider_position_to_gain (double pos);
 156
 157         static ARDOUR_UI *instance () { return theArdourUI; }
 158         static UIConfiguration *config () { return ui_config; }
 159
 160         PublicEditor&     the_editor(){return *editor;}
 161         Mixer_UI* the_mixer() { return mixer; }
 162
 163         void toggle_key_editor ();
 164         void toggle_location_window ();
 165         void toggle_theme_manager ();
 166         void toggle_bundle_manager ();
 167         void toggle_big_clock_window ();
 168         void new_midi_tracer_window ();
 169         void toggle_route_params_window ();
 170         void toggle_editing_space();
 171         void toggle_keep_tearoffs();
 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         XMLNode* tearoff_settings (const char*) const;
 184
 185         void save_ardour_state ();
 186         gboolean configure_handler (GdkEventConfigure* conf);
 187
 188         void do_transport_locate (nframes_t position);
 189         void halt_on_xrun_message ();
 190         void xrun_handler (nframes_t);
 191         void create_xrun_marker (nframes_t);
 192
 193         AudioClock primary_clock;
 194         AudioClock secondary_clock;
 195         AudioClock preroll_clock;
 196         AudioClock postroll_clock;
 197
 198         void store_clock_modes ();
 199         void restore_clock_modes ();
 200         void reset_main_clocks ();
 201
 202         void add_route (Gtk::Window* float_window);
 203
 204         void session_add_audio_track (int input_channels, int32_t output_channels, ARDOUR::TrackMode mode, ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 205                 session_add_audio_route (true, false, input_channels, output_channels, mode, route_group, how_many);
 206         }
 207
 208         void session_add_audio_bus (bool aux,  int input_channels, int32_t output_channels, ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 209                 session_add_audio_route (false, aux, input_channels, output_channels, ARDOUR::Normal, route_group, how_many);
 210         }
 211
 212         void session_add_midi_track (ARDOUR::RouteGroup* route_group, uint32_t how_many) {
 213                 session_add_midi_route (true, route_group, how_many);
 214         }
 215
 216         /*void session_add_midi_bus () {
 217                 session_add_midi_route (false);
 218         }*/
 219
 220         int  create_engine ();
 221         void post_engine ();
 222
 223         gint exit_on_main_window_close (GdkEventAny *);
 224
 225         void maximise_editing_space ();
 226         void restore_editing_space ();
 227
 228         void setup_profile ();
 229         void setup_theme ();
 230         void setup_tooltips ();
 231
 232         void set_shuttle_fract (double);
 233
 234   protected:
 235         friend class PublicEditor;
 236
 237         void toggle_clocking ();
 238         void toggle_auto_play ();
 239         void toggle_auto_input ();
 240         void toggle_punch ();
 241         void unset_dual_punch ();
 242         bool ignore_dual_punch;
 243         void toggle_punch_in ();
 244         void toggle_punch_out ();
 245         void show_loop_punch_ruler_and_disallow_hide ();
 246         void reenable_hide_loop_punch_ruler_if_appropriate ();
 247         void toggle_auto_return ();
 248         void toggle_click ();
 249
 250         void toggle_session_auto_loop ();
 251
 252         void toggle_rc_options_window ();
 253         void toggle_session_options_window ();
 254
 255   private:
 256         ArdourStartup*      _startup;
 257         ARDOUR::AudioEngine *engine;
 258         Gtk::Tooltips        _tooltips;
 259
 260         void                goto_editor_window ();
 261         void                goto_mixer_window ();
 262         void                toggle_editor_mixer_on_top ();
 263         bool                _mixer_on_top;
 264
 265         Gtk::ToggleButton   preroll_button;
 266         Gtk::ToggleButton   postroll_button;
 267
 268         int  setup_windows ();
 269         void setup_transport ();
 270         void setup_clock ();
 271
 272         static ARDOUR_UI *theArdourUI;
 273
 274         void backend_audio_error (bool we_set_params, Gtk::Window* toplevel = 0);
 275         void startup ();
 276         void shutdown ();
 277
 278         int  ask_about_saving_session (const std::string & why);
 279
 280         /* periodic safety backup, to be precise */
 281         gint autosave_session();
 282         void update_autosave();
 283         sigc::connection _autosave_connection;
 284
 285         void map_transport_state ();
 286         int32_t do_engine_start ();
 287
 288         void engine_halted (const char* reason, bool free_reason);
 289         void engine_stopped ();
 290         void engine_running ();
 291
 292         void use_config ();
 293
 294         static gint _blink  (void *);
 295         void blink ();
 296         gint blink_timeout_tag;
 297         bool blink_on;
 298         void start_blinking ();
 299         void stop_blinking ();
 300
 301         void about_signal_response(int response);
 302
 303   private:
 304         Gtk::VBox     top_packer;
 305
 306         sigc::connection clock_signal_connection;
 307         void         update_clocks ();
 308         void         start_clocking ();
 309         void         stop_clocking ();
 310
 311         void manage_window (Gtk::Window&);
 312
 313         AudioClock   big_clock;
 314         Gtk::Window* big_clock_window;
 315         int original_big_clock_width;
 316         int original_big_clock_height;
 317         double original_big_clock_font_size;
 318
 319         void big_clock_size_allocate (Gtk::Allocation&);
 320         bool idle_big_clock_text_resizer (int width, int height);
 321         void big_clock_realized ();
 322         bool big_clock_resize_in_progress;
 323         int  big_clock_height;
 324
 325         void float_big_clock (Gtk::Window* parent);
 326         bool main_window_state_event_handler (GdkEventWindowState*, bool window_was_editor);
 327
 328         void update_transport_clocks (nframes_t pos);
 329         void record_state_changed ();
 330
 331         std::list<MidiTracer*> _midi_tracer_windows;
 332
 333         /* Transport Control */
 334
 335         void detach_tearoff (Gtk::Box* parent, Gtk::Widget* contents);
 336         void reattach_tearoff (Gtk::Box* parent, Gtk::Widget* contents, int32_t order);
 337
 338         Gtkmm2ext::TearOff*      transport_tearoff;
 339         Gtk::Frame               transport_frame;
 340         Gtk::HBox                transport_tearoff_hbox;
 341         Gtk::HBox                play_range_hbox;
 342         Gtk::VBox                play_range_vbox;
 343         Gtk::HBox                transport_hbox;
 344         Gtk::Fixed               transport_base;
 345         Gtk::Fixed               transport_button_base;
 346         Gtk::Frame               transport_button_frame;
 347         Gtk::HBox                transport_button_hbox;
 348         Gtk::VBox                transport_button_vbox;
 349         Gtk::HBox                transport_option_button_hbox;
 350         Gtk::VBox                transport_option_button_vbox;
 351         Gtk::HBox                transport_clock_hbox;
 352         Gtk::VBox                transport_clock_vbox;
 353         Gtk::HBox                primary_clock_hbox;
 354         Gtk::HBox                secondary_clock_hbox;
 355
 356
 357         struct TransportControllable : public PBD::Controllable {
 358             enum ToggleType {
 359                     Roll = 0,
 360                     Stop,
 361                     RecordEnable,
 362                     GotoStart,
 363                     GotoEnd,
 364                     AutoLoop,
 365                     PlaySelection,
 366                     ShuttleControl
 367
 368             };
 369
 370             TransportControllable (std::string name, ARDOUR_UI&, ToggleType);
 371             void set_value (double);
 372             double get_value (void) const;
 373
 374             void set_id (const std::string&);
 375
 376             ARDOUR_UI& ui;
 377             ToggleType type;
 378         };
 379
 380         boost::shared_ptr<TransportControllable> roll_controllable;
 381         boost::shared_ptr<TransportControllable> stop_controllable;
 382         boost::shared_ptr<TransportControllable> goto_start_controllable;
 383         boost::shared_ptr<TransportControllable> goto_end_controllable;
 384         boost::shared_ptr<TransportControllable> auto_loop_controllable;
 385         boost::shared_ptr<TransportControllable> play_selection_controllable;
 386         boost::shared_ptr<TransportControllable> rec_controllable;
 387         boost::shared_ptr<TransportControllable> shuttle_controllable;
 388         BindingProxy shuttle_controller_binding_proxy;
 389
 390         void set_transport_controllable_state (const XMLNode&);
 391         XMLNode& get_transport_controllable_state ();
 392
 393         BindableButton roll_button;
 394         BindableButton stop_button;
 395         BindableButton goto_start_button;
 396         BindableButton goto_end_button;
 397         BindableButton auto_loop_button;
 398         BindableButton play_selection_button;
 399         BindableButton rec_button;
 400         Gtk::ToggleButton join_play_range_button;
 401
 402         void toggle_external_sync ();
 403         void toggle_time_master ();
 404         void toggle_video_sync ();
 405
 406         Gtk::DrawingArea  shuttle_box;
 407         Gtk::EventBox     speed_display_box;
 408         Gtk::Label        speed_display_label;
 409         Gtk::Button       shuttle_units_button;
 410         Gtk::ComboBoxText shuttle_style_button;
 411         Gtk::Menu*        shuttle_unit_menu;
 412         Gtk::Menu*        shuttle_style_menu;
 413         float             shuttle_max_speed;
 414         Gtk::Menu*        shuttle_context_menu;
 415
 416         void build_shuttle_context_menu ();
 417         void show_shuttle_context_menu ();
 418         void shuttle_style_changed();
 419         void shuttle_unit_clicked ();
 420         void set_shuttle_max_speed (float);
 421         void update_speed_display ();
 422         float last_speed_displayed;
 423
 424         gint shuttle_box_button_press (GdkEventButton*);
 425         gint shuttle_box_button_release (GdkEventButton*);
 426         gint shuttle_box_scroll (GdkEventScroll*);
 427         gint shuttle_box_motion (GdkEventMotion*);
 428         gint shuttle_box_expose (GdkEventExpose*);
 429         gint mouse_shuttle (double x, bool force);
 430         void use_shuttle_fract (bool force);
 431
 432         bool   shuttle_grabbed;
 433         double shuttle_fract;
 434
 435         Gtkmm2ext::StatefulToggleButton punch_in_button;
 436         Gtkmm2ext::StatefulToggleButton punch_out_button;
 437         Gtkmm2ext::StatefulToggleButton auto_return_button;
 438         Gtkmm2ext::StatefulToggleButton auto_play_button;
 439         Gtkmm2ext::StatefulToggleButton auto_input_button;
 440         Gtkmm2ext::StatefulToggleButton click_button;
 441         Gtkmm2ext::StatefulToggleButton time_master_button;
 442         Gtkmm2ext::StatefulToggleButton sync_button;
 443
 444         Gtk::ToggleButton auditioning_alert_button;
 445         Gtk::ToggleButton solo_alert_button;
 446
 447         Gtk::VBox alert_box;
 448
 449         void solo_blink (bool);
 450         void sync_blink (bool);
 451         void audition_blink (bool);
 452
 453         void soloing_changed (bool);
 454         void auditioning_changed (bool);
 455         void _auditioning_changed (bool);
 456
 457         bool solo_alert_press (GdkEventButton* ev);
 458         bool audition_alert_press (GdkEventButton* ev);
 459
 460         void big_clock_value_changed ();
 461         void primary_clock_value_changed ();
 462         void secondary_clock_value_changed ();
 463
 464         /* called by Blink signal */
 465
 466         void transport_rec_enable_blink (bool onoff);
 467
 468         Gtk::Menu*        session_popup_menu;
 469
 470         struct RecentSessionModelColumns : public Gtk::TreeModel::ColumnRecord {
 471             RecentSessionModelColumns() {
 472                     add (visible_name);
 473                     add (fullpath);
 474             }
 475             Gtk::TreeModelColumn<Glib::ustring> visible_name;
 476             Gtk::TreeModelColumn<Glib::ustring> fullpath;
 477         };
 478
 479         RecentSessionModelColumns    recent_session_columns;
 480         Gtk::TreeView                recent_session_display;
 481         Glib::RefPtr<Gtk::TreeStore> recent_session_model;
 482
 483         ArdourDialog*     session_selector_window;
 484         Gtk::FileChooserDialog* open_session_selector;
 485
 486         void build_session_selector();
 487         void redisplay_recent_sessions();
 488         void recent_session_row_activated (const Gtk::TreePath& path, Gtk::TreeViewColumn* col);
 489
 490         struct RecentSessionsSorter {
 491                 bool operator() (std::pair<std::string,std::string> a, std::pair<std::string,std::string> b) const {
 492                     return cmp_nocase(a.first, b.first) == -1;
 493             }
 494         };
 495
 496         /* menu bar and associated stuff */
 497
 498         Gtk::MenuBar* menu_bar;
 499         Gtk::EventBox menu_bar_base;
 500         Gtk::HBox     menu_hbox;
 501
 502         void use_menubar_as_top_menubar ();
 503         void build_menu_bar ();
 504
 505         Gtk::Label   wall_clock_label;
 506         Gtk::EventBox wall_clock_box;
 507         gint update_wall_clock ();
 508
 509         Gtk::Label   disk_space_label;
 510         Gtk::EventBox disk_space_box;
 511         void update_disk_space ();
 512
 513         Gtk::Label   cpu_load_label;
 514         Gtk::EventBox cpu_load_box;
 515         void update_cpu_load ();
 516
 517         Gtk::Label   buffer_load_label;
 518         Gtk::EventBox buffer_load_box;
 519         void update_buffer_load ();
 520
 521         Gtk::Label   sample_rate_label;
 522         Gtk::EventBox sample_rate_box;
 523         void update_sample_rate (nframes_t);
 524
 525         gint every_second ();
 526         gint every_point_one_seconds ();
 527         gint every_point_zero_one_seconds ();
 528
 529         sigc::connection second_connection;
 530         sigc::connection point_one_second_connection;
 531         sigc::connection point_oh_five_second_connection;
 532         sigc::connection point_zero_one_second_connection;
 533
 534         gint session_menu (GdkEventButton *);
 535
 536         bool _will_create_new_session_automatically;
 537
 538         void open_session ();
 539         void open_recent_session ();
 540         void save_template ();
 541
 542         void edit_metadata ();
 543         void import_metadata ();
 544
 545         void session_add_audio_route (bool disk, bool aux, int32_t input_channels, int32_t output_channels, ARDOUR::TrackMode mode, ARDOUR::RouteGroup *, uint32_t how_many);
 546         void session_add_midi_route (bool disk, ARDOUR::RouteGroup *, uint32_t how_many);
 547
 548         void set_transport_sensitivity (bool);
 549
 550         void remove_last_capture ();
 551
 552         void transport_goto_zero ();
 553         void transport_goto_start ();
 554         void transport_goto_end ();
 555         void transport_goto_wallclock ();
 556         void transport_stop ();
 557         void transport_stop_and_forget_capture ();
 558         void transport_record (bool roll);
 559         void transport_roll ();
 560         void transport_play_selection();
 561         void transport_forward (int option);
 562         void transport_rewind (int option);
 563         void transport_loop ();
 564         void toggle_roll (bool with_abort, bool roll_out_of_bounded_mode);
 565
 566         bool _session_is_new;
 567         void set_session (ARDOUR::Session *);
 568         void connect_dependents_to_session (ARDOUR::Session *);
 569         void we_have_dependents ();
 570
 571         void setup_session_options ();
 572
 573         guint32  last_key_press_time;
 574
 575         void snapshot_session (bool switch_to_it);
 576
 577         Mixer_UI   *mixer;
 578         int         create_mixer ();
 579
 580         PublicEditor     *editor;
 581         int         create_editor ();
 582
 583         RouteParams_UI *route_params;
 584         int             create_route_params ();
 585
 586         BundleManager *bundle_manager;
 587         void create_bundle_manager ();
 588
 589         LocationUIWindow *location_ui;
 590         int               create_location_ui ();
 591         void              handle_locations_change (ARDOUR::Location*);
 592
 593         static UIConfiguration *ui_config;
 594         ThemeManager *theme_manager;
 595
 596         /* Key bindings editor */
 597
 598         KeyEditor *key_editor;
 599
 600         /* RC Options window */
 601
 602         RCOptionEditor *rc_option_editor;
 603
 604         SessionOptionEditor *session_option_editor;
 605
 606         /* route dialog */
 607
 608         AddRouteDialog *add_route_dialog;
 609
 610         /* Keyboard Handling */
 611
 612         ArdourKeyboard* keyboard;
 613
 614         /* Keymap handling */
 615
 616         void install_actions ();
 617
 618         void toggle_record_enable (uint32_t);
 619
 620         uint32_t rec_enabled_streams;
 621         void count_recenabled_streams (ARDOUR::Route&);
 622
 623         About* about;
 624         Splash* splash;
 625         void pop_back_splash ();
 626         bool shown_flag;
 627
 628         /* cleanup */
 629
 630         Gtk::MenuItem *cleanup_item;
 631
 632         void display_cleanup_results (ARDOUR::CleanupReport& rep, const gchar* list_title,
 633                                       const std::string& plural_msg, const std::string& singular_msg);
 634         void cleanup ();
 635         void flush_trash ();
 636
 637         bool have_configure_timeout;
 638         ARDOUR::microseconds_t last_configure_time;
 639         gint configure_timeout ();
 640
 641         ARDOUR::microseconds_t last_peak_grab;
 642         ARDOUR::microseconds_t last_shuttle_request;
 643
 644         bool have_disk_speed_dialog_displayed;
 645         void disk_speed_dialog_gone (int ignored_response, Gtk::MessageDialog*);
 646         void disk_overrun_handler ();
 647         void disk_underrun_handler ();
 648
 649         void session_dialog (std::string);
 650         int pending_state_dialog ();
 651         int sr_mismatch_dialog (nframes_t, nframes_t);
 652
 653         void disconnect_from_jack ();
 654         void reconnect_to_jack ();
 655         void set_jack_buffer_size (nframes_t);
 656
 657         Gtk::MenuItem* jack_disconnect_item;
 658         Gtk::MenuItem* jack_reconnect_item;
 659         Gtk::Menu*     jack_bufsize_menu;
 660
 661         Glib::RefPtr<Gtk::ActionGroup> common_actions;
 662
 663         void editor_realized ();
 664
 665         std::vector<std::string> positional_sync_strings;
 666
 667         void toggle_send_midi_feedback ();
 668         void toggle_use_mmc ();
 669         void toggle_send_mmc ();
 670         void toggle_send_mtc ();
 671         void toggle_send_midi_clock ();
 672
 673         void toggle_use_osc ();
 674
 675         void parameter_changed (std::string);
 676
 677         bool first_idle ();
 678
 679         void no_memory_warning ();
 680         void check_memory_locking ();
 681
 682         bool check_audioengine();
 683         void audioengine_setup ();
 684
 685         void display_message (const char *prefix, gint prefix_len,
 686                         Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag,
 687                         const char *msg);
 688         Gtk::Label status_bar_label;
 689         bool status_bar_button_press (GdkEventButton*);
 690         Gtk::ToggleButton error_log_button;
 691
 692         void loading_message (const std::string& msg);
 693         void end_loading_messages ();
 694
 695         void platform_specific ();
 696         void platform_setup ();
 697         void fontconfig_dialog ();
 698
 699         PBD::ScopedConnectionList forever_connections;
 700
 701         void step_edit_status_change (bool);
 702 };
 703
 704 #endif /* __ardour_gui_h__ */
 705