107 lines
3.2 KiB
C++
107 lines
3.2 KiB
C++
#ifndef NULLSOFT_AGAVE_METADATA_IFC_METADATAREADER_H
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#define NULLSOFT_AGAVE_METADATA_IFC_METADATAREADER_H
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#include <bfc/dispatch.h>
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class ifc_metadataReader : public Dispatchable
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{
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protected:
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ifc_metadataReader()
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{}
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~ifc_metadataReader()
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{}
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public:
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/* If there are multiple values for the same field, these functions will concatenate the values in some
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manner as defined by the language pack */
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int GetField( const wchar_t *field, wchar_t *destination, size_t destinationCch );
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int GetFieldByKey( uint32_t field_key, wchar_t *destination, size_t destinationCch );
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int GetIndexedField( const wchar_t *field, uint32_t index, wchar_t *destination, size_t destinationCch );
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int GetIndexedFieldByKey( uint32_t field_key, uint32_t index, wchar_t *destination, size_t destinationCch );
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class ifc_fieldEnumerator : public Dispatchable
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{
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protected:
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ifc_fieldEnumerator();
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~ifc_fieldEnumerator();
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public:
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const wchar_t *GetField();
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uint32_t GetKey();
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int Next();
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DISPATCH_CODES
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{
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DISP_GETFIELD = 0,
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DISP_GETKEY = 1,
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DISP_NEXT = 2,
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};
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};
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enum
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{
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ENUMERATORFLAG_MULTIPLE_FIELDS = 0, // if multiple values of the same field are present, return each one
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ENUMERATORFLAG_REMOVE_DUPLICATE_FIELDS = 1, // don't enumerate duplicate fields (with differing values)
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};
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ifc_fieldEnumerator *GetFieldEnumerator( int flags = ENUMERATORFLAG_MULTIPLE_FIELDS ); // Enumerate fields present in this file
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DISPATCH_CODES
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{
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DISP_GETFIELD = 0,
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DISP_GETFIELDKEY = 1,
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DISP_GETINDEXEDFIELD = 2,
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DISP_GETINDEXEDFIELDBYKEY = 3,
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DISP_GETFIELDENUMERATOR = 4,
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};
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enum
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{
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NOT_IMPLEMENTED = -1,
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SUCCESS = 0,
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FAILURE = 1,
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END_OF_ITERATOR = 2,
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};
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};
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inline int ifc_metadataReader::GetField(const wchar_t *field, wchar_t *destination, size_t destinationCch)
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{
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return _call(DISP_GETFIELD, (int)ifc_metadataReader::NOT_IMPLEMENTED, field, destination, destinationCch);
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}
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inline int ifc_metadataReader::GetFieldByKey(uint32_t field_key, wchar_t *destination, size_t destinationCch)
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{
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return _call(DISP_GETFIELDKEY, (int)ifc_metadataReader::NOT_IMPLEMENTED, field_key, destination, destinationCch);
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}
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inline int ifc_metadataReader::GetIndexedField(const wchar_t *field, uint32_t index, wchar_t *destination, size_t destinationCch)
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{
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return _call(DISP_GETINDEXEDFIELD, (int)ifc_metadataReader::NOT_IMPLEMENTED, field, index, destination, destinationCch);
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}
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inline int ifc_metadataReader::GetIndexedFieldByKey(uint32_t field_key, uint32_t index, wchar_t *destination, size_t destinationCch)
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{
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return _call(DISP_GETINDEXEDFIELDBYKEY, (int)ifc_metadataReader::NOT_IMPLEMENTED, field_key, index, destination, destinationCch);
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}
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inline ifc_metadataReader::ifc_fieldEnumerator *ifc_metadataReader::GetFieldEnumerator(int flags)
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{
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return _call(DISP_GETFIELDENUMERATOR, (ifc_metadataReader::ifc_fieldEnumerator *)0, flags);
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}
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inline const wchar_t *ifc_metadataReader::ifc_fieldEnumerator::GetField()
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{
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return _call(DISP_NEXT, (const wchar_t *)0);
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}
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inline uint32_t ifc_metadataReader::ifc_fieldEnumerator::GetKey()
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{
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return _call(DISP_NEXT, (int)ifc_metadataReader::NOT_IMPLEMENTED);
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}
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inline int ifc_metadataReader::ifc_fieldEnumerator::Next()
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{
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return _call(DISP_NEXT, (int)END_OF_ITERATOR);
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}
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#endif |