Exiv2::TiffReader Class Reference

TIFF composite visitor to read the TIFF structure from a block of memory and build the composite from it (Visitor pattern). Used by TiffParser to read the TIFF data from a block of memory. More...

#include <tiffvisitor.hpp>

Inheritance diagram for Exiv2::TiffReader:

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List of all members.

Public Member Functions

Creators
 TiffReader (const byte *pData, uint32_t size, TiffComponent *pRoot, TiffRwState::AutoPtr state)
 Constructor. The data buffer and table describing the TIFF structure of the data are set in the constructor.
virtual ~TiffReader ()
 Virtual destructor.
Manipulators
virtual void visitEntry (TiffEntry *object)
 Read a TIFF entry from the data buffer.
virtual void visitDataEntry (TiffDataEntry *object)
 Read a TIFF data entry from the data buffer.
virtual void visitSizeEntry (TiffSizeEntry *object)
 Read a TIFF size entry from the data buffer.
virtual void visitDirectory (TiffDirectory *object)
 Read a TIFF directory from the data buffer.
virtual void visitSubIfd (TiffSubIfd *object)
 Read a TIFF sub-IFD from the data buffer.
virtual void visitMnEntry (TiffMnEntry *object)
 Read a TIFF makernote entry from the data buffer.
virtual void visitIfdMakernote (TiffIfdMakernote *object)
 Read an IFD makernote from the data buffer.
virtual void visitIfdMakernoteEnd (TiffIfdMakernote *object)
 Reset reader to its original state, undo makernote specific settings.
virtual void visitArrayEntry (TiffArrayEntry *object)
 Read an array entry component from the data buffer.
virtual void visitArrayElement (TiffArrayElement *object)
 Read an array element from the data buffer.
void readTiffEntry (TiffEntryBase *object)
 Read a standard TIFF entry from the data buffer.
void changeState (TiffRwState::AutoPtr state)
 Set the state class. Assumes ownership of the object passed in.
void resetState ()
 Reset the state to the original state as set in the constructor.
Accessors
ByteOrder byteOrder () const
 Return the byte order.
uint32_t baseOffset () const
 Return the base offset. See class TiffRwState for details.
std::auto_ptr< TiffComponentcreate (uint32_t extendedTag, uint16_t group) const
 Create a TIFF component for extendedTag and group.

Detailed Description

TIFF composite visitor to read the TIFF structure from a block of memory and build the composite from it (Visitor pattern). Used by TiffParser to read the TIFF data from a block of memory.


Constructor & Destructor Documentation

Exiv2::TiffReader::TiffReader ( const byte pData,
uint32_t  size,
TiffComponent pRoot,
TiffRwState::AutoPtr  state 
)

Constructor. The data buffer and table describing the TIFF structure of the data are set in the constructor.

Parameters:
pData Pointer to the data buffer, starting with a TIFF header.
size Number of bytes in the data buffer.
pRoot Root element of the TIFF composite.
state State object for creation function, byteorder and base offset.


The documentation for this class was generated from the following file:
Generated on Wed Jul 11 11:14:15 2007 for Exiv2 by  doxygen 1.4.7