/*

The zlib/libpng License



Copyright (c) 2005-2007 Phillip Castaneda (pjcast -- www.wreckedgames.com)



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_Mouse_H

#define OIS_Mouse_H

#include "OISObject.h"

#include "OISEvents.h"



namespace OIS

{

	//! Button ID for mouse devices

	enum MouseButtonID

	{

		MB_Left = 0, MB_Right, MB_Middle,

		MB_Button3, MB_Button4,	MB_Button5, MB_Button6,	MB_Button7

	};



	/**

		Represents the state of the mouse

		All members are valid for both buffered and non buffered mode

	*/

	class _OISExport MouseState

	{

	public:

		MouseState() : width(50), height(50), buttons(0) {};



		/** Represents the height/width of your display area.. used if mouse clipping

		or mouse grabbed in case of X11 - defaults to 50.. Make sure to set this

		and change when your size changes.. */

		mutable int width, height;



		//! X Axis component

		Axis X;



		//! Y Axis Component

		Axis Y;



		//! Z Axis Component

		Axis Z;



		//! represents all buttons - bit position indicates button down

		int buttons;



		//! Button down test

		inline bool buttonDown( MouseButtonID button ) const

		{

			return ((buttons & ( 1L << button )) == 0) ? false : true;

		}



		//! Clear all the values

		void clear()

		{

			X.clear();

			Y.clear();

			Z.clear();

			buttons = 0;

		}

	};



	/** Specialised for mouse events */

	class _OISExport MouseEvent : public EventArg

	{

	public:

		MouseEvent( Object *obj, const MouseState &ms )	: EventArg(obj), state(ms) {}

		virtual ~MouseEvent() {}



		//! The state of the mouse - including buttons and axes

		const MouseState &state;

	};



	/**

		To recieve buffered mouse input, derive a class from this, and implement the

		methods here. Then set the call back to your Mouse instance with Mouse::setEventCallback

	*/

	class _OISExport MouseListener

	{

	public:

		virtual ~MouseListener() {}

		virtual bool mouseMoved( const MouseEvent &arg ) = 0;

		virtual bool mousePressed( const MouseEvent &arg, MouseButtonID id ) = 0;

		virtual bool mouseReleased( const MouseEvent &arg, MouseButtonID id ) = 0;

	};



	/**

		Mouse base class. To be implemented by specific system (ie. DirectX Mouse)

		This class is useful as you remain OS independent using this common interface.

	*/

	class _OISExport Mouse : public Object

	{

	public:

		virtual ~Mouse() {}



		/**

		@remarks

			Register/unregister a Mouse Listener - Only one allowed for simplicity. If broadcasting

			is neccessary, just broadcast from the callback you registered.

		@param mouseListener

			Send a pointer to a class derived from MouseListener or 0 to clear the callback

		*/

		virtual void setEventCallback( MouseListener *mouseListener ) {mListener = mouseListener;}



		/** @remarks Returns currently set callback.. or 0 */

		MouseListener* getEventCallback() const {return mListener;}



		/** @remarks Returns the state of the mouse - is valid for both buffered and non buffered mode */

		const MouseState& getMouseState() const { return mState; }



	protected:

		Mouse(const std::string &inVendor, bool inBuffered, int devID, InputManager* creator)

			: Object(inVendor, OISMouse, inBuffered, devID, creator), mListener(0) {}



		//! The state of the mouse

		MouseState mState;



		//! Used for buffered/actionmapping callback

		MouseListener *mListener;

	};

}

#endif