// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#ifndef EVENTOUTPUTHANDLER_H

#define EVENTOUTPUTHANDLER_H

#include <vector>

class CTraceEventBase;

class MEventOutputHandler

    {

    public:

        inline bool ShowContextInfo() const

            {

            return iShowContextInfo;

            }

        inline bool SetShowContextInfo(bool aShowContextInfo)

            {

            bool lastValue = iShowContextInfo;

            iShowContextInfo = aShowContextInfo;

            return lastValue;

            }

        inline bool NewLineEnabled() const

            {

			return iNewLineEnabledStack.size()? iNewLineEnabledStack.back(): false;

            }

        inline void PushNewLineEnabled(bool aNewLineEnabled)

            {

            iNewLineEnabledStack.push_back(aNewLineEnabled);

            }

        inline void PopNewLineEnabled()

            {

            iNewLineEnabledStack.pop_back();

            }

        inline void SetNewLineEnabled(bool aNewLineEnabled)

            {

            while (!iNewLineEnabledStack.empty())

                {

                iNewLineEnabledStack.pop_back();

                }

            iNewLineEnabledStack.push_back(aNewLineEnabled);

            }

        virtual unsigned int CurrentFrame() const = 0;

        virtual void WriteEvent(const CTraceEventBase& aEvent) const = 0;

    private:

        std::vector<bool> iNewLineEnabledStack;

        bool iShowContextInfo;

    };

#endif

// EVENTOUTPUTHANDLER_H