/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 * This file is part of the LibreOffice project.

 *

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   Licensed to the Apache Software Foundation (ASF) under one or more

 *   contributor license agreements. See the NOTICE file distributed

 *   with this work for additional information regarding copyright

 *   ownership. The ASF licenses this file to you under the Apache

 *   License, Version 2.0 (the "License"); you may not use this file

 *   except in compliance with the License. You may obtain a copy of

 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .

 */

#pragma once

#include "sddllapi.h"

#include "cusshow.hxx"

#include <vector>

#include <memory>

#include <algorithm>

#include <cassert>

class SD_DLLPUBLIC SdCustomShowList

{

private:

    std::vector<std::unique_ptr<SdCustomShow>> mShows;

   sal_uInt16 mnCurPos;

public:

    SdCustomShowList()

        : mShows(), mnCurPos(0)

    {

    }

    SdCustomShowList& operator=( SdCustomShowList const & ) = delete; // MSVC2017 workaround

    SdCustomShowList( SdCustomShowList const & ) = delete; // MSVC2017 workaround

    bool empty() const {return mShows.empty();}

    size_t size() const {return mShows.size();}

    std::unique_ptr<SdCustomShow>& operator[](size_t i) {return mShows[i];}

    std::vector<std::unique_ptr<SdCustomShow>>::iterator begin() {return mShows.begin();}

    void erase(std::vector<std::unique_ptr<SdCustomShow>>::iterator it);

    void push_back(std::unique_ptr<SdCustomShow> p) {mShows.push_back(std::move(p));}

    sal_uInt16 GetCurPos() const { return mnCurPos; }

    void Seek(sal_uInt16 nNewPos) { mnCurPos = nNewPos; }

    SdCustomShow* First()

    {

        if( mShows.empty() )

            return nullptr;

        mnCurPos = 0;

        return mShows[mnCurPos].get();

    }

    SdCustomShow* Next()

    {

        ++mnCurPos;

        return mnCurPos >= mShows.size() ? nullptr : mShows[mnCurPos].get();

    }

    void Last()

    {

        if( !mShows.empty() )

            mnCurPos = mShows.size() - 1;

    }

    SdCustomShow* GetCurObject()

    {

        return mShows.empty() ? nullptr : mShows[mnCurPos].get();

    }

    void erase(const SdCustomShow* p)

    {

        auto it = std::find_if(mShows.begin(), mShows.end(),

                [&] (std::unique_ptr<SdCustomShow> const &i) { return i.get() == p; });

        assert( it != mShows.end() );

        if( it != mShows.end() )

            mShows.erase(it);

    }

};

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