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/******************************************************************************
*
* Purpose: Declaration of the CPCIDSKSegment class.
*
******************************************************************************
* Copyright (c) 2009
* PCI Geomatics, 50 West Wilmot Street, Richmond Hill, Ont, Canada
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef _INCLUDE_SEGMENT_PCIDSKSEGMENT_H
#define _INCLUDE_SEGMENT_PCIDSKSEGMENT_H
#include "pcidsk_config.h"
#include "pcidsk_types.h"
#include "pcidsk_buffer.h"
#include "pcidsk_segment.h"
#include <string>
#include <vector>
namespace PCIDSK
{
class PCIDSKFile;
class MetadataSet;
/************************************************************************/
/* CPCIDSKSegment */
/* */
/* Base class for accessing all segments. Provides core */
/* PCIDSKObject implementation for segments with raw segment io */
/* options. */
/************************************************************************/
class CPCIDSKSegment : virtual public PCIDSKSegment
{
public:
CPCIDSKSegment( PCIDSKFile *file, int segment,
const char *segment_pointer );
virtual ~CPCIDSKSegment();
void LoadSegmentPointer( const char *segment_pointer );
void LoadSegmentHeader();
PCIDSKBuffer &GetHeader() { return header; }
void FlushHeader();
void WriteToFile( const void *buffer, uint64 offset, uint64 size );
void ReadFromFile( void *buffer, uint64 offset, uint64 size );
eSegType GetSegmentType() { return segment_type; }
std::string GetName() { return segment_name; }
std::string GetDescription();
int GetSegmentNumber() { return segment; }
uint64 GetContentSize() { return data_size - 1024; }
bool IsAtEOF();
void SetDescription( const std::string &description);
std::string GetMetadataValue( const std::string &key ) const;
void SetMetadataValue( const std::string &key, const std::string &value );
std::vector<std::string> GetMetadataKeys() const;
virtual void Synchronize() {}
std::vector<std::string> GetHistoryEntries() const;
void SetHistoryEntries( const std::vector<std::string> &entries );
void PushHistory(const std::string &app,
const std::string &message);
virtual std::string ConsistencyCheck() { return ""; }
protected:
PCIDSKFile *file;
int segment;
eSegType segment_type;
char segment_flag;
std::string segment_name;
uint64 data_offset; // includes 1024 byte segment header.
uint64 data_size;
PCIDSKBuffer header;
mutable MetadataSet *metadata;
std::vector<std::string> history_;
void MoveData( uint64 src_offset, uint64 dst_offset,
uint64 size_in_bytes );
};
} // end namespace PCIDSK
#endif // _INCLUDE_SEGMENT_PCIDSKSEGMENT_H
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