core/ASCOfficePDFReader/Array.cpp

#include "stdafx.h"

#include <stdlib.h>
#include <stddef.h>
#include "MemoryUtils.h"
#include "Object.h"
#include "Array.h"

//------------------------------------------------------------------------
// 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);
}