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/****************************************************************************
**
** Copyright (C) 2016 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef EVENT_POLLER_H
#define EVENT_POLLER_H
#include <EASTL/vector.h>
#include "foundation/Qt3DSRefCounted.h"
#include "foundation/Qt3DSContainers.h"
#include "EventSystem.h"
#include "EventPollingSystem.h"
namespace qt3ds {
class NVFoundationBase;
}
namespace qt3ds {
namespace evt {
class CFactory;
class CPoller : public IEventSystem
{
public:
typedef IEventProvider *TProvider;
typedef qt3ds::foundation::nvvector<eastl::pair<TProvider, bool>> TProviderList;
typedef qt3ds::foundation::nvvector<Qt3DSEventSystemEvent *> TEventList;
typedef eastl::pair<void *, TProvider> TCEventProviderPair;
typedef eastl::vector<TCEventProviderPair> TCEventProviderList;
private:
explicit CPoller(qt3ds::NVFoundationBase &inFoundation);
virtual ~CPoller();
public:
// Providers once added are released if the poller goes out of scope.
void AddProvider(IEventProvider &inProvider) override;
void RemoveProvider(IEventProvider &inProvider) override;
bool IgnoreProvider(IEventProvider &inProvider) override;
bool ActivateProvider(IEventProvider &inProvider) override;
size_t GetNextEvents(Qt3DSEventSystemEvent **outBuffer, size_t bufLen) override;
IEventFactory &GetEventFactory() override;
Qt3DSEventSystemEventPoller *GetCInterface() override;
bool GetAndClearEventFetchedFlag() override;
void PurgeEvents() override;
void ReleaseEvents();
void addRef() override;
void release() override;
TProvider GetEventProviderWrapper(Qt3DSEventSystemEventProvider inProvider);
TProvider GetOrCreateEventProviderWrapper(Qt3DSEventSystemEventProvider inProvider);
void ReleaseEventProviderWrapper(Qt3DSEventSystemEventProvider inProvider);
static CPoller &Create(qt3ds::NVFoundationBase &inFoundation);
private:
Qt3DSEventSystemEvent *GetNextEvent(bool inAllowResetBuffer /* = true*/);
qt3ds::QT3DSI32 mRefCount;
qt3ds::NVFoundationBase &m_Foundation;
CFactory &m_EventFactory;
TProviderList m_Providers;
TEventList m_EventList;
qt3ds::QT3DSU32 m_EventIndex;
Qt3DSEventSystemEventPoller m_CInterface;
TCEventProviderList m_CEventProviders;
bool m_EventFetched;
};
}
}
#endif // EVENT_POLLER_H
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