startup_fsm.h

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/*
 * Copyright (C) 2019 Paul Davis <paul@linuxaudiosystems.com>
 *
 * 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
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __gtk2_ardour_startup_fsm_h__
#define __gtk2_ardour_startup_fsm_h__
 
#include <string>
 
#include <sigc++/trackable.h>
 
#include "ardour/types.h"
 
class ArdourDialog;
class NewUserWizard;
class EngineControl;
class SessionDialog;
class PluginScanDialog;
 
class StartupFSM : public sigc::trackable
{
  public:
        enum DialogID {
                PreReleaseDialog,
                NewUserDialog,
                NewSessionDialog,
                AudioMIDISetup,
                PluginDialog,
                ApplicationPseudoDialog,
        };
 
        enum Result {
                LoadSession,
                LoadedSession,
                ExitProgram,
                QuitProgram,
        };
 
        enum MainState {
                NotWaiting,
                WaitingForPreRelease,
                WaitingForNewUser,
                WaitingForSessionPath,
                WaitingForEngineParams,
                WaitingForPlugins
        };
 
        StartupFSM (EngineControl&);
        ~StartupFSM ();
 
        void start ();
        void reset ();
 
        std::string          session_path;
        std::string          session_name;
        std::string          session_template;
        Temporal::TimeDomain session_domain;
        int                  session_existing_sample_rate;
        XMLNode              session_engine_hints;
        bool                 session_is_new;
        bool                 session_name_edited;
        bool                 session_loaded;
 
        ARDOUR::BusProfile bus_profile;
 
        /* It's not a dialog but we provide this to make it behave like a (non-modal)
         * dialog
         */
 
        sigc::signal1<void,Result>& signal_response() { return _signal_response; }
 
        bool brand_new_user() const { return new_user; }
        void handle_path (std::string const & path);
 
        bool complete() const { return _state == NotWaiting; }
        void set_complete ();
 
  private:
        bool new_user;
        bool new_session_required;
 
        MainState _state;
 
        void set_state (MainState);
        void dialog_response_handler (int response, DialogID);
        template<typename T> void end_dialog (T**);
        template<typename T> void end_dialog (T&);
 
        void show_new_user_dialog ();
        void show_session_dialog (bool new_session_required);
        void show_audiomidi_dialog ();
        void show_pre_release_dialog ();
        void show_plugin_scan_dialog ();
 
        void copy_demo_sessions ();
        bool get_session_parameters_from_command_line (bool new_session_required);
        bool get_session_parameters_from_path (std::string const & path, std::string const & template_name, bool new_session_required);
        void queue_finish ();
        bool ask_about_loading_existing_session (const std::string& session_path);
        int  check_session_parameters (bool must_be_new);
        void start_audio_midi_setup ();
        void engine_running ();
        void handle_waiting_for_session_path ();
 
        /* the Audio/MIDI dialog needs to be persistent and is thus owned by
         * ARDOUR_UI and we use it by reference. All other dialogs can be
         * created and destroyed within the scope of startup.
         */
 
        EngineControl& audiomidi_dialog;
        NewUserWizard* new_user_dialog;
        SessionDialog* session_dialog;
        ArdourDialog* pre_release_dialog;
        PluginScanDialog* plugin_scan_dialog;
 
        sigc::connection current_dialog_connection;
        sigc::connection app_quit_connection;
        sigc::connection hide_quit_connection;
 
        sigc::signal1<void,Result> _signal_response;
 
        void dialog_hidden (Gtk::Window*);
};
 
#endif /* __gtk2_ardour_startup_fsm_h__ */