MouseDevice.h

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#pragma once

#include "Device.h"

#include "MouseState.h"
#include "InputDeviceInfo.h"
#include "InputDeviceEvent.h"

#include "EventQueue.h"

#include <vector>


namespace sw {
namespace input
{


class MouseDevice : public Device
{
private:

    InputDeviceInfo     m_info;
    MouseState          m_state;

    EventQueue< DeviceEvent >       m_events;

protected:
public:
    explicit        MouseDevice     () = default;
                    ~MouseDevice    () = default;


    const InputDeviceInfo&      GetInfo         () const    { return m_info; }
    const MouseState&           GetState        () const    { return m_state;  }

    EventQueue< DeviceEvent >&  GetEventsQueue  ()          { return m_events; }

    void                        ApplyAllEvents          ();
    DeviceEvent                 ApplyNextEvent          ();
    Timestamp                   GetNextEvtTimestamp     ();

    void                        RemoveEvents            ();

public:

    void            AddEvent        ( const DeviceEvent& event );

};


DEFINE_OPTR_TYPE( MouseDevice );

//====================================================================================//
//          Inline implementation   
//====================================================================================//

// ================================ //
//
inline void         MouseDevice::ApplyAllEvents ()
{
    while( !m_events.NoMoreEvents() )
    {
        auto& event = m_events.PopEvent();
        m_state.ApplyEvent( event );
    }
}

// ================================ //
//
inline DeviceEvent  MouseDevice::ApplyNextEvent()
{
    if( m_events.NoMoreEvents() )
        return DeviceEvent();

    auto& nextEvent = m_events.PopEvent();
    m_state.ApplyEvent( nextEvent );

    return nextEvent;
}

// ================================ //
//
inline Timestamp    MouseDevice::GetNextEvtTimestamp()
{
    if( m_events.NoMoreEvents() )
        return std::numeric_limits< Timestamp >::max();

    return m_events.FrontEvent().LogicalTime;
}

// ================================ //
//
inline void         MouseDevice::RemoveEvents       ()
{
    m_state.RemoveEvents();
    m_events.ClearReadEvents();
}


// ================================ //
//
inline void         MouseDevice::AddEvent       ( const DeviceEvent& event )
{
    m_events.AddEvent( event );
}




}   // input
}   // sw