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    Copyright (C) 1999-2002 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.


#ifndef __ardour_gui_h__
#define __ardour_gui_h__

#include <time.h>

/* need _BSD_SOURCE to get timersub macros */

#ifdef _BSD_SOURCE
#include <sys/time.h>
#define _BSD_SOURCE
#include <sys/time.h>
#undef _BSD_SOURCE

#include <list>
#include <cmath>

#include <libgnomecanvasmm/canvas.h>

#include <pbd/xml++.h>
#include <gtkmm/box.h>
#include <gtkmm/frame.h>
#include <gtkmm/label.h>
#include <gtkmm/table.h>
#include <gtkmm/fixed.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm/eventbox.h>
#include <gtkmm/menu.h>
#include <gtkmm/menuitem.h>
#include <gtkmm/button.h>
#include <gtkmm/togglebutton.h>
#include <gtkmm/treeview.h>
#include <gtkmm/menubar.h>
#include <gtkmm/textbuffer.h>
#include <gtkmm/adjustment.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/click_box.h>
#include <gtkmm2ext/stateful_button.h>
#include <gtkmm2ext/bindable_button.h>
#include <ardour/ardour.h>
#include <ardour/session.h>
#include <ardour/types.h>

#include "audio_clock.h"
#include "ardour_dialog.h"
#include "editing.h"
#include "ui_config.h"

class AudioClock;
class PublicEditor;
class Keyboard;
class OptionEditor;
class KeyEditor;
class Mixer_UI;
class ConnectionEditor;
class RouteParams_UI;
class About;
class Splash;
class AddRouteDialog;
class LocationUI;
class ThemeManager;
class NewSessionDialog;

namespace Gtkmm2ext {
      class TearOff;

namespace ARDOUR {
      class AudioEngine;
      class Route;
      class Port;
      class IO;
      class ControlProtocolInfo;

namespace ALSA {
      class MultiChannelDevice;

#define FRAME_NAME "BaseFrame"

extern sigc::signal<void>  ColorsChanged;
extern sigc::signal<void>  DPIReset;

class ARDOUR_UI : public Gtkmm2ext::UI
      ARDOUR_UI (int *argcp, char **argvp[]);

      void show ();
      bool shown() { return shown_flag; }
      void show_splash ();
      void hide_splash ();

      void launch_chat ();
      void show_about ();
      void hide_about ();
      void idle_load (const Glib::ustring& path);
      void finish();

      int load_session (const Glib::ustring& path, const Glib::ustring& snapshot, Glib::ustring mix_template = Glib::ustring());
      bool session_loaded;
      int build_session (const Glib::ustring& path, const Glib::ustring& snapshot, 
                     uint32_t ctl_chns, 
                     uint32_t master_chns,
                     ARDOUR::AutoConnectOption input_connect,
                     ARDOUR::AutoConnectOption output_connect,
                     uint32_t nphysin,
                     uint32_t nphysout,
                     nframes_t initial_length);
      bool session_is_new() const { return _session_is_new; }

      ARDOUR::Session* the_session() { return session; }

      bool will_create_new_session_automatically() const {
            return _will_create_new_session_automatically;

      void set_will_create_new_session_automatically (bool yn) {
            _will_create_new_session_automatically = yn;

      bool get_session_parameters (bool have_engine = false, bool should_be_new = false);
      void parse_cmdline_path (const Glib::ustring& cmdline_path, Glib::ustring& session_name, Glib::ustring& session_path, bool& existing_session);
      int  load_cmdline_session (const Glib::ustring& session_name, const Glib::ustring& session_path, bool& existing_session);
      int  build_session_from_nsd (const Glib::ustring& session_name, const Glib::ustring& session_path);
      bool ask_about_loading_existing_session (const Glib::ustring& session_path);
      int  unload_session (bool hide_stuff = false);
      void close_session(); 

      int  save_state_canfail (string state_name = "");
      void save_state (const string & state_name = "");

      static double gain_to_slider_position (ARDOUR::gain_t g);
        static ARDOUR::gain_t slider_position_to_gain (double pos);

      static ARDOUR_UI *instance () { return theArdourUI; }
      static UIConfiguration *config () { return ui_config; }

      PublicEditor&       the_editor(){return *editor;}
      Mixer_UI* the_mixer() { return mixer; }

      ARDOUR::AudioEngine& the_engine() const { return *engine; }

      void toggle_key_editor ();
      void toggle_location_window ();
      void toggle_theme_manager ();
      void toggle_big_clock_window ();
      void toggle_connection_editor ();
      void toggle_route_params_window ();
      void toggle_editing_space();

      Gtk::Tooltips& tooltips() { return _tooltips; }

      static sigc::signal<void,bool> Blink;
      static sigc::signal<void>      RapidScreenUpdate;
      static sigc::signal<void>      SuperRapidScreenUpdate;
      static sigc::signal<void,nframes_t, bool, nframes_t> Clock;

      void name_io_setup (ARDOUR::AudioEngine&, string&, ARDOUR::IO& io, bool in);

      XMLNode* editor_settings() const;
      XMLNode* mixer_settings () const;
      XMLNode* keyboard_settings () const;

      void save_ardour_state ();
      gboolean configure_handler (GdkEventConfigure* conf);

      void do_transport_locate (nframes_t position);
      void halt_on_xrun_message ();
      void xrun_handler (nframes_t);
      void create_xrun_marker (nframes_t);

      AudioClock primary_clock;
      AudioClock secondary_clock;
      AudioClock preroll_clock;
      AudioClock postroll_clock;

      void store_clock_modes ();
      void restore_clock_modes ();

      void add_route (Gtk::Window* float_window);
      void session_add_audio_track (int input_channels, int32_t output_channels, ARDOUR::TrackMode mode, uint32_t how_many) {
            session_add_audio_route (true, input_channels, output_channels, mode, how_many);

      void session_add_audio_bus (int input_channels, int32_t output_channels, uint32_t how_many) {
            session_add_audio_route (false, input_channels, output_channels, ARDOUR::Normal, how_many);

      void session_add_midi_track ();

      int  create_engine ();
      void post_engine ();

      gint exit_on_main_window_close (GdkEventAny *);

      void maximise_editing_space ();
      void restore_editing_space ();

      void set_native_file_header_format (ARDOUR::HeaderFormat sf);
      void set_native_file_data_format (ARDOUR::SampleFormat sf);

      void setup_profile ();
      void setup_theme ();

      void set_shuttle_fract (double);

      friend class PublicEditor;

      void toggle_clocking ();
      void toggle_auto_play ();
      void toggle_auto_input ();
      void toggle_punch ();
      void unset_dual_punch ();
      bool ignore_dual_punch;
      void toggle_punch_in ();
      void toggle_punch_out ();
      void toggle_auto_return ();
      void toggle_click ();

      void toggle_session_auto_loop ();
      void toggle_options_window ();

      struct GlobalClickBox : public Gtk::VBox {
          Gtkmm2ext::ClickBox  *box;
          Gtk::Frame      frame;
          Gtk::Label      label;
          vector<string> &strings;
          Gtk::Adjustment adjustment;

          static void printer (char buf[32], Gtk::Adjustment &adj, void *arg);

          GlobalClickBox (const string &str, vector<string> &vs)
                : strings (vs),
                  adjustment (0, 0, vs.size() - 1, 1, 1, 0) {
                box = new Gtkmm2ext::ClickBox (&adjustment, "ClickButton");
                label.set_text (str);
                label.set_name ("GlobalButtonLabel");
                frame.add (*box);
                frame.set_shadow_type (Gtk::SHADOW_IN);
                pack_start (label);
                pack_start (frame);
                box->set_print_func (printer, this);
                box->set_wrap (true);

      ARDOUR::AudioEngine                 *engine;
      ARDOUR::Session                     *session;

      Gtk::Tooltips          _tooltips;

      void                goto_editor_window ();
      void                goto_mixer_window ();
      void                toggle_editor_mixer_on_top ();
      bool                _mixer_on_top;

      GlobalClickBox     *online_control_button;
      vector<string>      online_control_strings;

      GlobalClickBox    *crossfade_time_button;
      vector<string>     crossfade_time_strings;

      Gtk::ToggleButton   preroll_button;
      Gtk::ToggleButton   postroll_button;

      int  setup_windows ();
      void setup_transport ();
      void setup_clock ();

      static ARDOUR_UI *theArdourUI;

      void backend_audio_error (bool we_set_params, Gtk::Window* toplevel = 0);
      void startup ();
      void shutdown ();

      int  ask_about_saving_session (const string & why);

      /* periodic safety backup, to be precise */
      gint autosave_session();
      void update_autosave();
      sigc::connection _autosave_connection;

      void queue_transport_change ();
      void map_transport_state ();
      int32_t do_engine_start ();
      void engine_halted ();
      void engine_stopped ();
      void engine_running ();

      void use_config ();

      static gint _blink  (void *);
      void blink ();
      gint blink_timeout_tag;
      bool blink_on;
      void start_blinking ();
      void stop_blinking ();

      void about_signal_response(int response);

      Gtk::VBox     top_packer;

      sigc::connection clock_signal_connection;
      void         update_clocks ();
      void         start_clocking ();
      void         stop_clocking ();

      void manage_window (Gtk::Window&);
      AudioClock   big_clock;
      Gtk::Window* big_clock_window;

      void float_big_clock (Gtk::Window* parent);
      bool main_window_state_event_handler (GdkEventWindowState*, bool window_was_editor);

      void update_transport_clocks (nframes_t pos);
      void record_state_changed ();

      /* Transport Control */

      void detach_tearoff (Gtk::Box* parent, Gtk::Widget* contents);
      void reattach_tearoff (Gtk::Box* parent, Gtk::Widget* contents, int32_t order);

      Gtkmm2ext::TearOff*      transport_tearoff;
      Gtk::Frame               transport_frame;
      Gtk::HBox                transport_tearoff_hbox;
      Gtk::HBox                transport_hbox;
      Gtk::Fixed               transport_base;
      Gtk::Fixed               transport_button_base;
      Gtk::Frame               transport_button_frame;
      Gtk::HBox                transport_button_hbox;
      Gtk::VBox                transport_button_vbox;
      Gtk::HBox                transport_option_button_hbox;
      Gtk::VBox                transport_option_button_vbox;
      Gtk::HBox                transport_clock_hbox;
      Gtk::VBox                transport_clock_vbox;
      Gtk::HBox                primary_clock_hbox;
      Gtk::HBox                secondary_clock_hbox;

      struct TransportControllable : public PBD::Controllable {
          enum ToggleType {
                Roll = 0,
          TransportControllable (std::string name, ARDOUR_UI&, ToggleType);
          void set_value (float);
          float get_value (void) const;
          void set_id (const std::string&);
          ARDOUR_UI& ui;
          ToggleType type;

      TransportControllable roll_controllable;
      TransportControllable stop_controllable;
      TransportControllable goto_start_controllable;
      TransportControllable goto_end_controllable;
      TransportControllable auto_loop_controllable;
      TransportControllable play_selection_controllable;
      TransportControllable rec_controllable;
      TransportControllable shuttle_controllable;
      BindingProxy shuttle_controller_binding_proxy;

      void set_transport_controllable_state (const XMLNode&);
      XMLNode& get_transport_controllable_state ();

      BindableButton roll_button;
      BindableButton stop_button;
      BindableButton goto_start_button;
      BindableButton goto_end_button;
      BindableButton auto_loop_button;
      BindableButton play_selection_button;
      BindableButton rec_button;

      Gtk::ComboBoxText sync_option_combo;

      void sync_option_changed ();
      void toggle_time_master ();
      void toggle_video_sync ();

      Gtk::DrawingArea  shuttle_box;
      Gtk::EventBox     speed_display_box;
      Gtk::Label        speed_display_label;
      Gtk::Button       shuttle_units_button;
      Gtk::ComboBoxText shuttle_style_button;
      Gtk::Menu*        shuttle_unit_menu;
      Gtk::Menu*        shuttle_style_menu;
      float             shuttle_max_speed;
      Gtk::Menu*        shuttle_context_menu;

      void build_shuttle_context_menu ();
      void show_shuttle_context_menu ();
      void shuttle_style_changed();
      void shuttle_unit_clicked ();
      void set_shuttle_max_speed (float);
      void update_speed_display ();
      float last_speed_displayed;

      gint shuttle_box_button_press (GdkEventButton*);
      gint shuttle_box_button_release (GdkEventButton*);
      gint shuttle_box_scroll (GdkEventScroll*);
      gint shuttle_box_motion (GdkEventMotion*);
      gint shuttle_box_expose (GdkEventExpose*);
      gint mouse_shuttle (double x, bool force);
      void use_shuttle_fract (bool force);

      bool   shuttle_grabbed;
      double shuttle_fract;

      Gtkmm2ext::StatefulToggleButton punch_in_button;
      Gtkmm2ext::StatefulToggleButton punch_out_button;
      Gtkmm2ext::StatefulToggleButton auto_return_button;
      Gtkmm2ext::StatefulToggleButton auto_play_button;
      Gtkmm2ext::StatefulToggleButton auto_input_button;
      Gtkmm2ext::StatefulToggleButton click_button;
      Gtkmm2ext::StatefulToggleButton time_master_button;

      Gtk::ToggleButton auditioning_alert_button;
      Gtk::ToggleButton solo_alert_button;

      Gtk::VBox alert_box;
      void solo_blink (bool);
      void audition_blink (bool);

      void soloing_changed (bool);
      void auditioning_changed (bool);
      void _auditioning_changed (bool);

      void solo_alert_toggle ();
      void audition_alert_toggle ();

      void big_clock_value_changed ();
      void primary_clock_value_changed ();
      void secondary_clock_value_changed ();

      /* called by Blink signal */

      void transport_rec_enable_blink (bool onoff);

      Gtk::Menu*        session_popup_menu;

      struct RecentSessionModelColumns : public Gtk::TreeModel::ColumnRecord {
          RecentSessionModelColumns() { 
                add (visible_name);
                add (fullpath);
          Gtk::TreeModelColumn<Glib::ustring> visible_name;
          Gtk::TreeModelColumn<Glib::ustring> fullpath;

      RecentSessionModelColumns    recent_session_columns;
      Gtk::TreeView                recent_session_display;
      Glib::RefPtr<Gtk::TreeStore> recent_session_model;

      ArdourDialog*     session_selector_window;
      Gtk::FileChooserDialog* open_session_selector;
      void build_session_selector();
      void redisplay_recent_sessions();
      void recent_session_row_activated (const Gtk::TreePath& path, Gtk::TreeViewColumn* col);

      struct RecentSessionsSorter {
          bool operator() (std::pair<string,string> a, std::pair<string,string> b) const {
                return cmp_nocase(a.first, b.first) == -1;

      /* menu bar and associated stuff */

      Gtk::MenuBar* menu_bar;
      Gtk::EventBox menu_bar_base;
      Gtk::HBox     menu_hbox;

      void use_menubar_as_top_menubar ();

      void build_menu_bar ();
      void build_control_surface_menu ();

      Gtk::Label   wall_clock_label;
      Gtk::EventBox wall_clock_box;
      gint update_wall_clock ();

      Gtk::Label   disk_space_label;
      Gtk::EventBox disk_space_box;
      void update_disk_space ();

      Gtk::Label   cpu_load_label;
      Gtk::EventBox cpu_load_box;
      void update_cpu_load ();

      Gtk::Label   buffer_load_label;
      Gtk::EventBox buffer_load_box;
      void update_buffer_load ();

      Gtk::Label   sample_rate_label;
      Gtk::EventBox sample_rate_box;
      void update_sample_rate (nframes_t);

      gint every_second ();
      gint every_point_one_seconds ();
      gint every_point_zero_one_seconds ();

      sigc::connection second_connection;
      sigc::connection point_one_second_connection;
      sigc::connection point_oh_five_second_connection;
      sigc::connection point_zero_one_second_connection;

      gint session_menu (GdkEventButton *);

      bool _will_create_new_session_automatically;

      NewSessionDialog* new_session_dialog;
      void open_session ();
      void open_recent_session ();
      void save_template ();

      void session_add_audio_route (bool disk, int32_t input_channels, int32_t output_channels, ARDOUR::TrackMode mode, uint32_t how_many);

      void set_transport_sensitivity (bool);

      void remove_last_capture ();

      void transport_goto_zero ();
      void transport_goto_start ();
      void transport_goto_end ();
      void transport_goto_wallclock ();
      void transport_stop ();
      void transport_stop_and_forget_capture ();
      void transport_record (bool roll);
      void transport_roll ();
      void transport_play_selection(); 
      void transport_forward (int option);
      void transport_rewind (int option);
      void transport_loop ();

      void transport_rolling ();
      void transport_rewinding ();
      void transport_forwarding ();
      void transport_stopped ();

      bool _session_is_new;
      void connect_to_session (ARDOUR::Session *);
      void connect_dependents_to_session (ARDOUR::Session *);
      void we_have_dependents ();
      void setup_session_options ();
      guint32  last_key_press_time;

      void snapshot_session ();

      Mixer_UI   *mixer;
      int         create_mixer ();
      PublicEditor     *editor;
      int         create_editor ();

      RouteParams_UI *route_params;
      int             create_route_params ();

      ConnectionEditor *connection_editor;
      int               create_connection_editor ();

      LocationUI *location_ui;
      int         create_location_ui ();
      void        handle_locations_change (ARDOUR::Location*);

      static UIConfiguration *ui_config;
      ThemeManager *theme_manager;

      /* Key bindings editor */

      KeyEditor *key_editor;

      /* Options window */
      OptionEditor *option_editor;
      /* route dialog */

      AddRouteDialog *add_route_dialog;
      /* Keyboard Handling */
      Keyboard* keyboard;

      /* Keymap handling */

      void install_actions ();

      void toggle_record_enable (uint32_t);

      uint32_t rec_enabled_streams;
      void count_recenabled_streams (ARDOUR::Route&);

      About* about;
      Splash* splash;
      void pop_back_splash ();
      bool shown_flag;

      /* cleanup */

      Gtk::MenuItem *cleanup_item;

      void display_cleanup_results (ARDOUR::Session::cleanup_report& rep, const gchar* list_title, 
                              const string& plural_msg, const string& singular_msg);
      void cleanup ();
      void flush_trash ();

      bool have_configure_timeout;
      ARDOUR::microseconds_t last_configure_time;
      gint configure_timeout ();

      ARDOUR::microseconds_t last_peak_grab;
      ARDOUR::microseconds_t last_shuttle_request;

      struct DiskBufferStat {
          time_t when;
          uint32_t capture;
          uint32_t playback;

          DiskBufferStat (time_t w, uint32_t c, uint32_t p) 
          : when (w), capture (c), playback (p) {}
      std::list<DiskBufferStat> disk_buffer_stats;
      void push_buffer_stats (uint32_t, uint32_t);
      void write_buffer_stats ();

      bool have_disk_speed_dialog_displayed;
      void disk_speed_dialog_gone (int ignored_response, Gtk::MessageDialog*);
      void disk_overrun_handler ();
      void disk_underrun_handler ();
      bool preset_file_exists_handler ();

      void session_dialog (std::string);
      int pending_state_dialog ();
      int sr_mismatch_dialog (nframes_t, nframes_t);
      void disconnect_from_jack ();
      void reconnect_to_jack ();
      void set_jack_buffer_size (nframes_t);

      Gtk::MenuItem* jack_disconnect_item;
      Gtk::MenuItem* jack_reconnect_item;
      Gtk::Menu*     jack_bufsize_menu;

      Glib::RefPtr<Gtk::ActionGroup> common_actions;

      void editor_realized ();

      std::vector<std::string> positional_sync_strings;

      void toggle_send_midi_feedback ();
      void toggle_use_mmc ();
      void toggle_send_mmc ();
      void toggle_send_mtc ();

      void toggle_use_osc ();

      void toggle_denormal_protection ();

      void set_input_auto_connect (ARDOUR::AutoConnectOption);
      void set_output_auto_connect (ARDOUR::AutoConnectOption);
      void set_solo_model (ARDOUR::SoloModel);
      void set_monitor_model (ARDOUR::MonitorModel);
      void set_remote_model (ARDOUR::RemoteModel);
      void set_denormal_model (ARDOUR::DenormalModel);

      void toggle_sync_order_keys ();
      void toggle_new_plugins_active();
      void toggle_StopPluginsWithTransport();
      void toggle_DoNotRunPluginsWhileRecording();
      void toggle_VerifyRemoveLastCapture();
      void toggle_PeriodicSafetyBackups();
      void toggle_StopRecordingOnXrun();
      void toggle_CreateXrunMarker();
      void toggle_StopTransportAtEndOfSession();
      void toggle_GainReduceFastTransport();
      void toggle_LatchedSolo();
      void toggle_ShowSoloMutes();
      void toggle_SoloMuteOverride();
      void toggle_LatchedRecordEnable ();
      void toggle_RegionEquivalentsOverlap ();
      void toggle_PrimaryClockDeltaEditCursor ();
      void toggle_SecondaryClockDeltaEditCursor ();
      void toggle_only_copy_imported_files ();
      void toggle_ShowTrackMeters ();
      void toggle_use_narrow_ms();
      void toggle_NameNewMarkers ();
      void toggle_rubberbanding_snaps_to_grid ();
      void toggle_auto_analyse_audio ();
      void toggle_TapeMachineMode();

      void mtc_port_changed ();
      void map_solo_model ();
      void map_monitor_model ();
      void map_denormal_model ();
      void map_denormal_protection ();
      void map_remote_model ();
      void map_file_header_format ();
      void map_file_data_format ();
      void map_input_auto_connect ();
      void map_output_auto_connect ();
      void map_only_copy_imported_files ();
      void parameter_changed (const char*);

      void set_meter_hold (ARDOUR::MeterHold);
      void set_meter_falloff (ARDOUR::MeterFalloff);
      void map_meter_hold ();
      void map_meter_falloff ();

      void toggle_control_protocol (ARDOUR::ControlProtocolInfo*);
      void toggle_control_protocol_feedback (ARDOUR::ControlProtocolInfo*, const char* group_name, std::string action_name);

      bool first_idle ();

      void no_memory_warning ();
      void check_memory_locking ();

      bool check_audioengine();
      void audioengine_setup ();

      void display_message (const char *prefix, gint prefix_len, 
                        Glib::RefPtr<Gtk::TextBuffer::Tag> ptag, Glib::RefPtr<Gtk::TextBuffer::Tag> mtag, const char *msg);
      Gtk::Label status_bar_label;
      Gtk::ToggleButton error_log_button;
      void loading_message (const std::string& msg);
      void end_loading_messages ();

      void platform_specific ();
      void platform_setup ();
      void fontconfig_dialog ();

#endif /* __ardour_gui_h__ */

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