patch_change_widget.h

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/*
 * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
 *
 * 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.
 */
 
#pragma once
 
#include <gtkmm/box.h>
#include <gtkmm/notebook.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/table.h>
 
#include "midi++/midnam_patch.h"
#include "pbd/signals.h"
 
#include "ardour/route.h"
 
#include "widgets/ardour_button.h"
#include "widgets/ardour_dropdown.h"
 
#include "ardour_dialog.h"
#include "ardour_window.h"
#include "pianokeyboard.h"
 
namespace ARDOUR {
        class MIDITrigger;
};
 
class PatchBankList
{
public:
        PatchBankList ();
        virtual ~PatchBankList ();
 
protected:
        void refill (std::shared_ptr<MIDI::Name::ChannelNameSet>, int const bank);
        void set_active_pgm (uint8_t);
 
        virtual void select_bank (uint32_t)     = 0;
        virtual void select_program (uint8_t)   = 0;
        virtual void instrument_info_changed () = 0;
 
        ArdourWidgets::ArdourDropdown _bank_select;
        Gtk::SpinButton               _bank_msb_spin;
        Gtk::SpinButton               _bank_lsb_spin;
        Gtk::Table                    _program_table;
 
private:
        void select_bank_spin ();
 
        ArdourWidgets::ArdourButton              _program_btn[128];
        std::shared_ptr<MIDI::Name::PatchBank> _current_patch_bank;
        bool                                     _ignore_spin_btn_signals;
 
};
 
class PatchChangeTab : public Gtk::VBox, public PatchBankList
{
public:
        PatchChangeTab (int channel);
 
        void refresh ();
        void reset (std::shared_ptr<ARDOUR::Route>, std::shared_ptr<ARDOUR::MIDITrigger>);
 
protected:
        int     bank () const;
        uint8_t program () const;
 
        /* Implement PatchBankList */
        void select_bank (uint32_t);
        void select_program (uint8_t);
 
private:
        void refill_banks ();
        void trigger_property_changed (PBD::PropertyChange const&);
        void enable_toggle ();
        void update_sensitivity ();
        void instrument_info_changed ();
 
        ArdourWidgets::ArdourButton _enable_btn;
 
        int  _channel;
        int  _bank;
        bool _ignore_callback;
 
        std::shared_ptr<ARDOUR::Route>       _route;
        std::shared_ptr<ARDOUR::MIDITrigger> _trigger;
        PBD::ScopedConnectionList              _connections;
};
 
class PatchChangeWidget : public Gtk::VBox, public PatchBankList
{
public:
        PatchChangeWidget (std::shared_ptr<ARDOUR::Route>);
        ~PatchChangeWidget ();
 
        void refresh ();
 
protected:
        int     bank (uint8_t) const;
        uint8_t program (uint8_t) const;
 
        void on_show ();
        void on_hide ();
 
private:
        void refill_banks ();
 
        void select_channel (uint8_t);
 
        /* Implement PatchBankList */
        void select_bank (uint32_t);
        void select_program (uint8_t);
 
        /* Route Callbacks */
        void instrument_info_changed ();
        void processors_changed ();
 
        /* callbacks from route AC */
        void bank_changed ();
        void program_changed ();
        void bankpatch_changed (uint8_t);
 
        /* Audition */
        void audition_toggle ();
        void check_note_range (bool);
        void audition ();
        void cancel_audition ();
        bool audition_next ();
 
        std::shared_ptr<ARDOUR::Route> _route;
        ARDOUR::InstrumentInfo&          _info;
 
        uint8_t _channel;
        bool    _no_notifications;
 
        ArdourWidgets::ArdourDropdown _channel_select;
        ArdourWidgets::ArdourButton   _audition_enable;
        Gtk::SpinButton               _audition_start_spin; // Consider a click-box w/note-names
        Gtk::SpinButton               _audition_end_spin;
        Gtk::SpinButton               _audition_velocity;
        uint8_t                       _audition_note_num;
        bool                          _audition_note_on;
 
        APianoKeyboard _piano;
 
        void _note_on_event_handler (int, int);
        void note_on_event_handler (int, bool for_audition);
        void note_off_event_handler (int);
 
        sigc::connection          _note_queue_connection;
        PBD::ScopedConnectionList _ac_connections;
        PBD::ScopedConnectionList _route_connections;
};
 
class PatchChangeTriggerWindow : public ArdourWindow
{
public:
        PatchChangeTriggerWindow ();
 
        void reset (std::shared_ptr<ARDOUR::Route>, std::shared_ptr<ARDOUR::MIDITrigger>);
        void clear ();
 
private:
        void on_switch_page (GtkNotebookPage*, guint page_num);
 
        Gtk::Notebook   _notebook;
        PatchChangeTab* _w[16];
 
        PBD::ScopedConnection _route_connection;
};
 
class PatchChangeGridDialog : public ArdourDialog
{
public:
        PatchChangeGridDialog (std::shared_ptr<ARDOUR::Route>);
 
        void on_hide ()
        {
                w.hide ();
                ArdourDialog::on_hide ();
        }
 
        void on_show ()
        {
                w.show ();
                ArdourDialog::on_show ();
        }
 
        void refresh ()
        {
                w.refresh ();
        }
 
private:
        void                  route_property_changed (const PBD::PropertyChange&, std::weak_ptr<ARDOUR::Route>);
        PBD::ScopedConnection _route_connection;
        PatchChangeWidget     w;
};