piano_key_bindings.h

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/*
 * Copyright (C) 2010-2016 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2014-2019 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 _PIANO_KEY_BINDINGS_H_
#define _PIANO_KEY_BINDINGS_H_
 
#include <map>
#include <string>
 
#include <gtk/gtk.h>
 
/*
 * Class for mapping PC keyboard keys to note pitches. Used by the
 * Virtual MIDI Keyboard.
 */
class PianoKeyBindings
{
public:
        PianoKeyBindings ();
        ~PianoKeyBindings ();
 
        enum Layout {
                NO_KEYS,
                QWERTY,
                QWERTZ,
                AZERTY,
                DVORAK,
                S_QWERTY,
                S_QWERTZ
        };
 
        void set_layout (Layout layout);
        int  key_binding (const char* key) const;
        const char* note_binding (int note) const;
 
        static Layout layout (std::string const& l);
        static const char* get_keycode (GdkEventKey* event);
 
private:
        void bind_key (const char* key, int note);
        void clear_notes ();
 
        void bind_keys_qwerty ();
        void bind_keys_qwertz ();
        void bind_keys_azerty ();
        void bind_keys_dvorak ();
 
        void bind_keys_basic_qwerty ();
        void bind_keys_basic_qwertz ();
 
        std::map<std::string, int> _key_bindings;  
        std::map<int, std::string> _note_bindings; 
};
 
#endif