customshowlist.hxx

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