TouchScreenRotateGesture.h

// Copyright eeGeo Ltd (2012-2014), All Rights Reserved

#pragma once

#include "VectorMath.h"
#include "WindowsInput.h"


namespace Eegeo
{
    namespace Windows
    {
        namespace Input
        {
            class TouchScreenRotateGesture
            {
            private:
                IWindowsInputHandler* m_pHandler;

                bool m_rotating;

                float m_lastRotationRadians;
                float m_totalRotation;
                float m_previousRotationDelta;

                bool m_needNewBaseLine;

                v2 m_baseLineDirection;

                const float m_majorScreenDimension;
                std::vector<TouchScreenInputEvent> m_lastPointer;

                bool UpdateRotation(const TouchScreenInputEvent& event, int numTouches, bool pointerUp, const std::vector<TouchScreenInputEvent>& touchScreenEvents);

            public:
                TouchScreenRotateGesture(IWindowsInputHandler* pHandler, float screenWidth, float screenHeight, int maxDeviceTouchCount);

                void PointerDown(const TouchScreenInputEvent& event, const std::vector<TouchScreenInputEvent>& m_touchScreenEvents);
                void PointerUp(const TouchScreenInputEvent& event, const std::vector<TouchScreenInputEvent>& m_touchScreenEvents);
                void PointerMove(const TouchScreenInputEvent& event, const std::vector<TouchScreenInputEvent>& m_touchScreenEvents);
            };
        }
    }
}