SdlInputHandler.h

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//Thanks to Jordan Milne and Scrawl for allowing to use their
//sdlinputwrapper files as base under the MIT license
 
#ifndef _Demo_SdlInputHandler_H_
#define _Demo_SdlInputHandler_H_
 
#include "BaseSystem.h"
#include "OGRE/OgrePrerequisites.h"
#include "SdlEmulationLayer.h"
 
#if OGRE_USE_SDL2
 
#include <SDL2/SDL.h>
 
namespace Demo
{
    class MouseListener;
    class KeyboardListener;
    class JoystickListener;
 
    class SdlInputHandler
    {
        SDL_Window  *mSdlWindow;
 
        BaseSystem          *mGraphicsSystem;
        BaseSystem          *mLogicSystem;
        MouseListener       *mMouseListener;
        KeyboardListener    *mKeyboardListener;
        JoystickListener    *mJoystickListener;
 
        // User settings
        bool        mWantRelative;
        bool        mWantMouseGrab;
        bool        mWantMouseVisible;
 
        // Describes internal state.
        bool        mIsMouseRelative;
        bool        mWrapPointerManually;
        bool        mGrabPointer;
        bool        mMouseInWindow;
        bool        mWindowHasFocus;
 
        int         mWarpX;
        int         mWarpY;
        bool        mWarpCompensate;
 
        void updateMouseSettings(void);
 
        void handleWindowEvent( const SDL_Event& evt );
 
        void warpMouse( int x, int y);
 
        void wrapMousePointer( const SDL_MouseMotionEvent& evt );
 
        bool handleWarpMotion( const SDL_MouseMotionEvent& evt );
 
    public:
        SdlInputHandler( SDL_Window *sdlWindow,
                         MouseListener *mouseListener,
                         KeyboardListener *keyboardListener,
                         JoystickListener *joystickListener );
        virtual ~SdlInputHandler();
 
        void _handleSdlEvents( const SDL_Event& evt );
 
        void setGrabMousePointer( bool grab );
 
        void setMouseRelative( bool relative );
 
        void setMouseVisible( bool visible );
 
        void _overrideKeyboardListener( KeyboardListener *listener );
        void _overrideMouseListener( MouseListener *listener );
        KeyboardListener *getKeyboardListener( void );
        MouseListener *getMouseListener( void );
    };
}
 
#endif
 
#endif