// FGKeyboardInput.hxx -- handle user input from keyboard devices
//
// Written by Torsten Dreyer, started August 2009
// Based on work from David Megginson, started May 2001.
//
// Copyright (C) 2009 Torsten Dreyer, Torsten (at) t3r _dot_ de
// Copyright (C) 2001 David Megginson, david@megginson.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.
//
// $Id$

#ifndef _FGKEYBOARDINPUT_HXX
#define _FGKEYBOARDINPUT_HXX

#ifndef __cplusplus
# error This library requires C++
#endif

#include "FGCommonInput.hxx"
#include "FGButton.hxx"
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/props/tiedpropertylist.hxx>

////////////////////////////////////////////////////////////////////////
// The Keyboard Input Class
////////////////////////////////////////////////////////////////////////
class FGKeyboardInput : public SGSubsystem,
                        FGCommonInput
{
public:
    FGKeyboardInput();
    virtual ~FGKeyboardInput();

    // Subsystem API.
    void bind() override;
    void init() override;
    void postinit() override;
    void unbind() override;
    void update(double dt) override;

    // Subsystem identification.
    static const char* staticSubsystemClassId() { return "input-keyboard"; }

    static const int MAX_KEYS = 1024;

private:
    const binding_list_t& _find_key_bindings (unsigned int k, int modifiers);
    void doKey (int k, int modifiers, int x, int y);

    static void keyHandler(int key, int keymod, int mousex, int mousey);
    static FGKeyboardInput * keyboardInput;
    FGButton bindings[MAX_KEYS];
    SGPropertyNode_ptr _key_event;
    int  _key_code;
    int  _key_modifiers;
    bool _key_pressed;
    bool _key_shift;
    bool _key_ctrl;
    bool _key_alt;
    bool _key_meta;
    bool _key_super;
    bool _key_hyper;
    simgear::TiedPropertyList _tiedProperties;
};

#endif