/*
 * (c) Copyright Ascensio System SIA 2010-2016
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
 * EU, LV-1021.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
 */
#include <stdlib.h>
#include <stddef.h>
#include "MemoryUtils.h"
#include "Object.h"
#include "Array.h"

namespace PdfReader
{
	//------------------------------------------------------------------------
	// Array
	//------------------------------------------------------------------------

	Array::Array(XRef *pXRef)
	{
		m_pXRef = pXRef;
		m_arrItems = NULL;
		m_nItemSize = m_nCount = 0;
		m_nRef = 1;
	}

	Array::~Array()
	{
		for (int nIndex = 0; nIndex < m_nCount; ++nIndex)
			m_arrItems[nIndex].Free();
		MemUtilsFree(m_arrItems);
	}

	void Array::Add(Object *pItem)
	{
		if (m_nCount == m_nItemSize)
		{
			if (m_nCount == 0)
			{
				m_nItemSize = 8;
			}
			else
			{
				m_nItemSize *= 2;
			}
			m_arrItems = (Object *)MemUtilsReallocArray(m_arrItems, m_nItemSize, sizeof(Object));
		}
		m_arrItems[m_nCount] = *pItem;
		++m_nCount;
	}

	Object *Array::Get(int nIndex, Object *pObject)
	{
		if (nIndex < 0 || nIndex >= m_nCount)
		{
			return pObject->InitNull();
		}
		return m_arrItems[nIndex].Fetch(m_pXRef, pObject);
	}

	Object *Array::GetCopy(int nIndex, Object *pObject)
	{
		if (nIndex < 0 || nIndex >= m_nCount)
		{
			return pObject->InitNull();
		}
		return m_arrItems[nIndex].Copy(pObject);
	}
}