MacHelpers.h

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/*
 The zlib/libpng License
 
 Copyright (c) 2006 Chris Snyder 
 
 This software is provided 'as-is', without any express or implied warranty. In no event will
 the authors be held liable for any damages arising from the use of this software.
 
 Permission is granted to anyone to use this software for any purpose, including commercial 
 applications, and to alter it and redistribute it freely, subject to the following
 restrictions:
 
 1. The origin of this software must not be misrepresented; you must not claim that 
 you wrote the original software. If you use this software in a product, 
 an acknowledgment in the product documentation would be appreciated but is 
 not required.
 
 2. Altered source versions must be plainly marked as such, and must not be 
 misrepresented as being the original software.
 
 3. This notice may not be removed or altered from any source distribution.
*/
#ifndef OIS_MacHelpers_H
#define OIS_MacHelpers_H

#include "mac/MacPrereqs.h"
#include "OISEvents.h"
#include "OISKeyboard.h"
#include "OISMouse.h"

#include <Carbon/Carbon.h>

// This is a hack needed to get the event handler working. 
// The carbon lib expects a "OSStatus (*)(EventHandlerCallRef, EventRef, void*)",
// so I cannot give it a class member function (unless it is static which is pointless)
// Instead, I just pass the class* through the last paramter that gets passed to the
// callback every time an event occurs. Then I dereference it and call the member function.
OSStatus KeyDownWrapper( EventHandlerCallRef nextHandler, EventRef theEvent, void* callClass );

OSStatus KeyUpWrapper( EventHandlerCallRef nextHandler, EventRef theEvent, void* callClass );

OSStatus KeyModWrapper( EventHandlerCallRef nextHandler, EventRef theEvent, void* callClass );

OSStatus MouseWrapper( EventHandlerCallRef nextHandler, EventRef theEvent, void* callClass );


// This is needed for keeping an event stack for keyboard and mouse
namespace OIS
{
    
    // used in the eventStack to store the type
    enum Mac_EventType { MAC_KEYUP = 0,
                         MAC_KEYDOWN = 1,
                         MAC_KEYREPEAT,
                         MAC_MOUSEDOWN,
                         MAC_MOUSEUP,
                         MAC_MOUSEMOVED,
                         MAC_MOUSESCROLL};
    typedef enum Mac_EventType MacEventType;
    
    
    // only used by MacKeyboard
    typedef class Mac_KeyStackEvent
    {
        friend class MacKeyboard;
        
        
    private:
        Mac_KeyStackEvent( KeyEvent event, MacEventType type ) : Event(event), Type(type) {}
        
        MacEventType Type;
        KeyEvent Event;
    } MacKeyStackEvent;
 
    

    // only used by MacMouse
    typedef class Mac_MouseStackEvent
    {
        friend class MacMouse;
        
    private:
        Mac_MouseStackEvent( MouseEvent event, MacEventType type,  MouseButtonID button) : Event(event), Type(type), Button(button) {}
        
        MacEventType Type;
        MouseEvent Event;
        MouseButtonID Button;
        
    } MacMouseStackEvent;
        
}


#endif