HotkeyHandler.h

// Copyright (c) 2013 by István Váradi
 
// This file is part of XPLRA, a remote-access plugin for X-Plane
 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
 
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.
 
#ifndef XPLRA_HOTKEYHANDLER_H
#define XPLRA_HOTKEYHANDLER_H
//------------------------------------------------------------------------------
 
#include <hu/varadiistvan/scpl/Mutex.h>
 
#include <XPLMDefs.h>
 
#include <list>
 
#include <inttypes.h>
 
//------------------------------------------------------------------------------
 
namespace hu { namespace varadiistvan { namespace scpl { namespace io {
 
class DataStream;
 
} } } }
 
//------------------------------------------------------------------------------
 
namespace xplra {
 
//------------------------------------------------------------------------------
 
class HotkeyHandler
{
public:
    class Hotkeys
    {
    private:
        size_t numHotkeys;
 
        uint16_t* hotkeys;
 
        uint8_t* pressed;
 
    public:
        Hotkeys(size_t numHotkeys, hu::varadiistvan::scpl::io::DataStream& stream);
 
        ~Hotkeys();
 
        bool isValid() const;
 
        bool handleKey(uint16_t code);
 
        void writePressed(hu::varadiistvan::scpl::io::DataStream& stream);
    };
 
    friend class Hotkeys;
 
private:
    typedef std::list<Hotkeys*> hotkeySets_t;
 
    static int keyCallback(char c, XPLMKeyFlags flags, char virtualKey,
                           void* refCon);
 
    hu::varadiistvan::scpl::Mutex mutex;
 
    hotkeySets_t hotkeySets;
 
public:
    HotkeyHandler();
 
    void registerHotkeys(Hotkeys* hotkeys);
 
    void unregisterHotkeys(Hotkeys* hotkeys);
 
protected:
    bool handleKey(char c, XPLMKeyFlags flags, char virtualKey);
};
 
//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------
 
inline bool HotkeyHandler::Hotkeys::isValid() const
{
    return hotkeys!=0;
}
 
//------------------------------------------------------------------------------
 
} /* namespace xplra */
 
//------------------------------------------------------------------------------
#endif // XPLRA_HOTKEYHANDLER_H
 
// Local Variables:
// mode: C++
// c-basic-offset: 4
// indent-tabs-mode: nil
// End: