CIccEmbedIO Class Reference

Type: Class. More...

#include <IccIO.h>

Inheritance diagram for CIccEmbedIO:

Collaboration diagram for CIccEmbedIO:

Public Member Functions
bool	Attach (CIccIO *pIO, icInt32Number nSize=0, bool bOwnIO=false)
	CIccEmbedIO ()
virtual void	Close ()
virtual icInt32Number	GetLength ()
virtual icInt32Number	Read8 (void *pBuf, icInt32Number nNum=1)
virtual icInt32Number	Seek (icInt32Number nOffset, icSeekVal pos)
virtual icInt32Number	Tell ()
virtual icInt32Number	Write8 (void *pBuf, icInt32Number nNum=1)
virtual	~CIccEmbedIO ()
Public Member Functions inherited from CIccIO
bool	Align32 ()
	Write operation to make sure that filelength is evenly divisible by 4.
icInt32Number	Read16 (void *pBuf16, icInt32Number nNum=1)
icInt32Number	Read32 (void *pBuf32, icInt32Number nNum=1)
icInt32Number	Read64 (void *pBuf64, icInt32Number nNum=1)
icInt32Number	ReadFloat16Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadFloat32Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadLine (void *pBuf8, icInt32Number nNum=256)
icInt32Number	ReadUInt16Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadUInt8Float (void *pBufFloat, icInt32Number nNum=1)
bool	Sync32 (icUInt32Number nOffset=0)
	Operation to make sure read position is evenly divisible by 4.
icInt32Number	Write16 (void *pBuf16, icInt32Number nNum=1)
icInt32Number	Write32 (void *pBuf32, icInt32Number nNum=1)
icInt32Number	Write64 (void *pBuf64, icInt32Number nNum=1)
icInt32Number	WriteFloat16Float (void *pBuf16, icInt32Number nNum=1)
icInt32Number	WriteFloat32Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	WriteUInt16Float (void *pBuf16, icInt32Number nNum=1)
icInt32Number	WriteUInt8Float (void *pBuf16, icInt32Number nNum=1)
virtual	~CIccIO ()

Protected Attributes
bool	m_bOwnIO
icInt32Number	m_nSize
icInt32Number	m_nStartPos
CIccIO *	m_pIO

Detailed Description

Type: Class.

Purpose: Handles embedding a file within a file

Definition at line 184 of file IccIO.h.

Constructor & Destructor Documentation

CIccEmbedIO()

CIccEmbedIO::CIccEmbedIO

(

)

Definition at line 506 of file IccIO.cpp.

                         : CIccIO()
{
  m_pIO = NULL;
  m_nStartPos = 0;
  m_nSize = -1;
  m_bOwnIO = false;
}

References m_bOwnIO, m_nSize, m_nStartPos, and m_pIO.

~CIccEmbedIO()

CIccEmbedIO::~CIccEmbedIO ( )

virtual

Definition at line 514 of file IccIO.cpp.

{
  Close();
}

References Close().

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Member Function Documentation

Attach()

bool CIccEmbedIO::Attach	(	CIccIO *	pIO,
		icInt32Number	nSize = 0,
		bool	bOwnIO = false )

Definition at line 519 of file IccIO.cpp.

{
  if (!pIO)
    return false;
 
  m_nStartPos = pIO->Tell();
  m_nSize = nSize;
  m_bOwnIO = bOwnIO;
  m_pIO = pIO;
 
  if (m_nStartPos < 0)
    return false;
 
  return true;
}

References m_bOwnIO, m_nSize, m_nStartPos, m_pIO, and CIccIO::Tell().

Referenced by CIccTagEmbeddedProfile::Write().

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Close()

void CIccEmbedIO::Close ( )

virtual

Reimplemented from CIccIO.

Definition at line 536 of file IccIO.cpp.

{
  if (m_pIO && m_bOwnIO) {
    m_pIO->Close();
 
    delete m_pIO;
    m_pIO = NULL;
  }
}

References CIccIO::Close(), m_bOwnIO, and m_pIO.

Referenced by ~CIccEmbedIO().

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GetLength()

icInt32Number CIccEmbedIO::GetLength ( )

virtual

Reimplemented from CIccIO.

Definition at line 573 of file IccIO.cpp.

{
  if (!m_pIO)
    return 0;
 
  if (m_nSize)
    return m_nSize;
 
  return m_pIO->GetLength() - m_nStartPos;
}

References CIccIO::GetLength(), m_nSize, m_nStartPos, and m_pIO.

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Read8()

icInt32Number CIccEmbedIO::Read8 ( void * pBuf, icInt32Number nNum = 1 )

virtual

Reimplemented from CIccIO.

Definition at line 547 of file IccIO.cpp.

{
  if (!m_pIO)
    return 0;
 
  if (m_nSize > 0) {
    icUInt32Number nPos = m_pIO->Tell();
    icUInt32Number nOffset = nPos - m_nStartPos;
 
    if (nOffset + nNum > (icUInt64Number)m_nSize)
      nNum = m_nSize - nOffset;
  }
 
  return m_pIO->Read8(pBuf, nNum);
}

References m_nSize, m_nStartPos, m_pIO, CIccIO::Read8(), and CIccIO::Tell().

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Seek()

icInt32Number CIccEmbedIO::Seek ( icInt32Number nOffset, icSeekVal pos )

virtual

Reimplemented from CIccIO.

Definition at line 585 of file IccIO.cpp.

{
  icInt32Number nPos;
  if (!m_pIO)
    return -1;
 
  if (pos == icSeekSet) {
    if (m_nSize > 0 && nOffset > m_nSize)
      nOffset = m_nSize;
    else if (nOffset < 0)
      nOffset = m_nStartPos;
 
   nPos = m_pIO->Seek(nOffset + m_nStartPos, icSeekSet);
    
  }
  else if (pos == icSeekEnd) {
    if (m_nSize > 0) {
      nOffset = m_nSize + nOffset;
    }
    else {
      nOffset = nOffset + m_pIO->GetLength() - m_nStartPos;
    }
    if (nOffset < 0)
      nOffset = 0;
    nOffset += m_nStartPos;
 
    nPos = m_pIO->Seek(nOffset, icSeekSet);
  }
  else {//pos == icSeekCur
    nOffset = m_pIO->Tell() + nOffset;
 
    if (m_nSize && nOffset - m_nStartPos > m_nSize)
      nOffset = m_nStartPos + m_nSize;
    else if (nOffset < m_nStartPos)
      nOffset = m_nStartPos;
 
    nPos = m_pIO->Seek(nOffset, icSeekSet);
  }
 
  if (nPos >= m_nStartPos)
    return nPos - m_nStartPos;
 
  return nPos;
}

References CIccIO::GetLength(), icSeekEnd, icSeekSet, m_nSize, m_nStartPos, m_pIO, CIccIO::Seek(), and CIccIO::Tell().

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Tell()

icInt32Number CIccEmbedIO::Tell ( )

virtual

Reimplemented from CIccIO.

Definition at line 631 of file IccIO.cpp.

{
  if (!m_pIO)
    return -1;
 
  icUInt32Number nPos = m_pIO->Tell();
 
  if ((icInt32Number)nPos >= m_nStartPos)
    return nPos - m_nStartPos;
 
  return nPos;
}

References m_nStartPos, m_pIO, and CIccIO::Tell().

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Write8()

icInt32Number CIccEmbedIO::Write8 ( void * pBuf, icInt32Number nNum = 1 )

virtual

Reimplemented from CIccIO.

Definition at line 564 of file IccIO.cpp.

{
  if (!m_pIO)
    return 0;
 
  return m_pIO->Write8(pBuf, nNum);
}

References m_pIO, and CIccIO::Write8().

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Member Data Documentation

m_bOwnIO

bool CIccEmbedIO::m_bOwnIO

protected

Definition at line 205 of file IccIO.h.

Referenced by Attach(), CIccEmbedIO(), and Close().

m_nSize

icInt32Number CIccEmbedIO::m_nSize

protected

Definition at line 204 of file IccIO.h.

Referenced by Attach(), CIccEmbedIO(), GetLength(), Read8(), and Seek().

m_nStartPos

icInt32Number CIccEmbedIO::m_nStartPos

protected

Definition at line 203 of file IccIO.h.

Referenced by Attach(), CIccEmbedIO(), GetLength(), Read8(), Seek(), and Tell().

m_pIO

CIccIO* CIccEmbedIO::m_pIO

protected

Definition at line 202 of file IccIO.h.

Referenced by Attach(), CIccEmbedIO(), Close(), GetLength(), Read8(), Seek(), Tell(), and Write8().

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The documentation for this class was generated from the following files:

• IccProfLib/IccIO.h
• IccProfLib/IccIO.cpp