virtual_keyboard_window.h

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/*
 * Copyright (C) 2019 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.
 */
 
#ifndef _virtual_keyboard_window_h_
#define _virtual_keyboard_window_h_
 
#include <gtkmm/box.h>
#include <gtkmm/spinbutton.h>
 
#include "pbd/controllable.h"
#include "pbd/signals.h"
 
#include "gtkmm2ext/persistent_tooltip.h"
 
#include "widgets/ardour_button.h"
#include "widgets/ardour_dropdown.h"
#include "widgets/ardour_knob.h"
 
#include "ardour_window.h"
#include "pianokeyboard.h"
 
namespace ARDOUR {
        class Session;
}
 
namespace ArdourWidgets {
        class VSliderController;
}
 
class VKBDControl : public PBD::Controllable
{
public:
        VKBDControl (const std::string& name, double normal = 127, double upper = 127)
                : PBD::Controllable (name, Flag (0))
                , _lower (0)
                , _upper (upper)
                , _normal (normal)
                , _value (normal)
        {}
 
        /* Controllable API */
        void set_value (double v, PBD::Controllable::GroupControlDisposition gcd)
        {
                if (v != _value) {
                        _value = std::max (_lower, std::min (_upper, v));
                        Changed (true, gcd);        /* EMIT SIGNAL */
                        ValueChanged ((int)_value); /* EMIT SIGNAL */
                }
        }
 
        std::string get_user_string () const
        {
                char buf[32];
                sprintf (buf, "%.0f", get_value ());
                return std::string (buf);
        }
 
        double get_value () const { return _value; }
        double lower () const { return _lower; }
        double upper () const { return _upper; }
        double normal () const { return _normal; }
 
        PBD::Signal<void(int)> ValueChanged;
 
protected:
        double _lower;
        double _upper;
        double _normal;
        double _value;
};
 
class VirtualKeyboardWindow : public ArdourWindow
{
public:
        VirtualKeyboardWindow ();
        ~VirtualKeyboardWindow ();
 
        void set_session (ARDOUR::Session*);
 
        XMLNode& get_state () const;
        void     set_state (const XMLNode&);
 
protected:
        bool on_focus_in_event (GdkEventFocus*);
 
private:
        void on_unmap ();
        bool on_key_press_event (GdkEventKey*);
        bool on_key_release_event (GdkEventKey*);
 
        void parameter_changed (std::string const&);
 
        void note_on_event_handler (int, int);
        void note_off_event_handler (int);
        void control_change_event_handler (int, int);
        void control_change_knob_event_handler (int, int);
 
        void modwheel_update_tooltip (int);
        void modwheel_slider_adjusted ();
 
        void octave_key_event_handler (bool);
        void velocity_key_event_handler (int);
        void pitch_bend_key_event_handler (int, bool);
        bool pitch_bend_timeout ();
 
        void pitch_bend_event_handler (int);
        void pitch_bend_release (int);
        void pitch_bend_update_tooltip (int);
        void pitch_slider_adjusted ();
 
        void select_keyboard_layout (std::string const&);
        void update_velocity_settings ();
        void update_octave_key ();
        void update_octave_range ();
        void cc_key_changed (size_t);
        void update_cc (size_t, int);
        bool send_panic_message (GdkEventButton*);
        bool on_velocity_scroll_event (GdkEventScroll*);
 
        APianoKeyboard  _piano;
 
        ArdourWidgets::ArdourDropdown  _midi_channel;
        ArdourWidgets::ArdourDropdown  _piano_velocity;
        ArdourWidgets::ArdourDropdown  _piano_octave_key;
        ArdourWidgets::ArdourDropdown  _piano_octave_range;
        ArdourWidgets::ArdourDropdown  _transpose_output;
        ArdourWidgets::ArdourButton    _send_panic;
 
        std::shared_ptr<VKBDControl>    _pitchbend;
        Gtk::Adjustment                   _pitch_adjustment;
        ArdourWidgets::VSliderController* _pitch_slider;
        Gtkmm2ext::PersistentTooltip*     _pitch_slider_tooltip;
 
        std::shared_ptr<VKBDControl>    _modwheel;
        Gtk::Adjustment                   _modwheel_adjustment;
        ArdourWidgets::VSliderController* _modwheel_slider;
        Gtkmm2ext::PersistentTooltip*     _modwheel_tooltip;
#define VKBD_NCTRLS 4
 
        std::shared_ptr<VKBDControl> _cc[VKBD_NCTRLS];
        ArdourWidgets::ArdourKnob*     _cc_knob[VKBD_NCTRLS];
        ArdourWidgets::ArdourDropdown  _cc_key[VKBD_NCTRLS];
 
        PBD::ScopedConnectionList _cc_connections;
 
        sigc::connection _bender_connection;
        int              _pitch_bend_target;
};
 
#endif