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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SC_SOURCE_FILTER_INC_XERECORD_HXX
#define INCLUDED_SC_SOURCE_FILTER_INC_XERECORD_HXX
#include "xlconst.hxx"
#include "xestream.hxx"
#include <memory>
// Base classes to export Excel records =======================================
/** Base class for all Excel records.
Derive from this class to implement any functionality performed during
saving the records - except really writing a record (i.e. write a list of
records contained in the class). Derive from XclExpRecord (instead from
this class) to write common records.
*/
class XclExpRecordBase
{
public:
virtual ~XclExpRecordBase();
/** Overwrite this method to do any operation while saving the record. */
virtual void Save( XclExpStream& rStrm );
virtual void SaveXml( XclExpXmlStream& rStrm );
};
class XclExpDelegatingRecord : public XclExpRecordBase
{
public:
XclExpDelegatingRecord( XclExpRecordBase* pRecord );
virtual ~XclExpDelegatingRecord() override;
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
private:
XclExpRecordBase* mpRecord;
};
class XclExpXmlElementRecord : public XclExpRecordBase
{
public:
explicit XclExpXmlElementRecord(sal_Int32 nElement);
virtual ~XclExpXmlElementRecord() override;
protected:
sal_Int32 mnElement;
};
class XclExpXmlStartElementRecord : public XclExpXmlElementRecord
{
public:
explicit XclExpXmlStartElementRecord(sal_Int32 nElement);
virtual ~XclExpXmlStartElementRecord() override;
/** Starts the element nElement */
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
};
class XclExpXmlEndElementRecord : public XclExpXmlElementRecord
{
public:
explicit XclExpXmlEndElementRecord(sal_Int32 nElement);
virtual ~XclExpXmlEndElementRecord() override;
/** Ends the element nElement */
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
};
class XclExpXmlStartSingleElementRecord : public XclExpXmlElementRecord
{
public:
explicit XclExpXmlStartSingleElementRecord(sal_Int32 nElement);
virtual ~XclExpXmlStartSingleElementRecord() override;
/** Starts the single element nElement */
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
};
class XclExpXmlEndSingleElementRecord : public XclExpRecordBase
{
public:
XclExpXmlEndSingleElementRecord();
virtual ~XclExpXmlEndSingleElementRecord() override;
/** Ends the single element nElement */
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
};
/** Base class for single records with any content.
This class handles writing the record header. Derived classes only have to
write the record body. Calculating the record size before saving optimizes
the write process (the stream does not have to seek back and update the
written record size). But it is not required to calculate a valid size
(maybe it would be too complex or just impossible until the record is
really written).
*/
class XclExpRecord : public XclExpRecordBase
{
public:
/** @param nRecId The record ID of this record. May be set later with SetRecId().
@param nRecSize The predicted record size. May be set later with SetRecSize(). */
explicit XclExpRecord(
sal_uInt16 nRecId = EXC_ID_UNKNOWN,
std::size_t nRecSize = 0 );
virtual ~XclExpRecord() override;
/** Returns the current record ID. */
inline sal_uInt16 GetRecId() const { return mnRecId; }
/** Returns the current record size prediction. */
inline std::size_t GetRecSize() const { return mnRecSize; }
/** Sets a new record ID. */
inline void SetRecId( sal_uInt16 nRecId ) { mnRecId = nRecId; }
/** Sets a new record size prediction. */
inline void SetRecSize( std::size_t nRecSize ) { mnRecSize = nRecSize; }
/** Adds a size value to the record size prediction. */
inline void AddRecSize( std::size_t nRecSize ) { mnRecSize += nRecSize; }
/** Sets record ID and size with one call. */
void SetRecHeader( sal_uInt16 nRecId, std::size_t nRecSize );
/** Writes the record header and calls WriteBody(). */
virtual void Save( XclExpStream& rStrm ) override;
protected:
/** Writes the body of the record (without record header).
@descr Usually this method will be overwritten by derived classes. */
virtual void WriteBody( XclExpStream& rStrm );
private:
std::size_t mnRecSize; /// The predicted record size.
sal_uInt16 mnRecId; /// The record ID.
};
/** A record without body. Only the record ID and the size 0 will be written. */
class XclExpEmptyRecord : public XclExpRecord
{
public:
/** @param nRecId The record ID of this record. */
inline explicit XclExpEmptyRecord( sal_uInt16 nRecId );
};
inline XclExpEmptyRecord::XclExpEmptyRecord( sal_uInt16 nRecId ) :
XclExpRecord( nRecId, 0 )
{
}
/** A record with a single value of type Type.
@descr Requires operator<<( XclExpStream&, const Type& ). */
template< typename Type >
class XclExpValueRecord : public XclExpRecord
{
public:
/** @param nRecId The record ID of this record.
@param rValue The value for the record body.
@param nSize Record size. Uses sizeof( Type ), if this parameter is omitted. */
inline explicit XclExpValueRecord( sal_uInt16 nRecId, const Type& rValue, std::size_t nSize = sizeof( Type ) ) :
XclExpRecord( nRecId, nSize ), maValue( rValue ), mnAttribute( -1 ) {}
/** Returns the value of the record. */
inline const Type& GetValue() const { return maValue; }
/** Sets a new record value. */
inline void SetValue( const Type& rValue ) { maValue = rValue; }
/** Sets the OOXML attribute this record corresponds to */
XclExpValueRecord* SetAttribute( sal_Int32 nId );
/** Write the OOXML attribute and its value */
void SaveXml( XclExpXmlStream& rStrm ) override;
private:
/** Writes the body of the record. */
virtual void WriteBody( XclExpStream& rStrm ) override { rStrm << maValue; }
// inlining prevents warning in wntmsci10
private:
Type maValue; /// The record data.
sal_Int32 mnAttribute; /// The OOXML attribute Id
};
template< typename Type >
void XclExpValueRecord< Type >::SaveXml( XclExpXmlStream& rStrm )
{
if( mnAttribute == -1 )
return;
rStrm.WriteAttributes(
mnAttribute, OString::number( maValue ).getStr(),
FSEND );
}
template<>
void XclExpValueRecord<double>::SaveXml( XclExpXmlStream& rStrm );
template< typename Type >
XclExpValueRecord< Type >* XclExpValueRecord< Type >::SetAttribute( sal_Int32 nId )
{
mnAttribute = nId;
return this;
}
/** A record containing an unsigned 16-bit value. */
typedef XclExpValueRecord< sal_uInt16 > XclExpUInt16Record;
/** A record containing a double value. */
typedef XclExpValueRecord< double > XclExpDoubleRecord;
/** Record which contains a Boolean value.
@descr The value is stored as 16-bit value: 0x0000 = sal_False, 0x0001 = TRUE. */
class XclExpBoolRecord : public XclExpRecord
{
public:
/** @param nRecId The record ID of this record.
@param nValue The value for the record body. */
inline explicit XclExpBoolRecord( sal_uInt16 nRecId, bool bValue, sal_Int32 nAttribute = -1 ) :
XclExpRecord( nRecId, 2 ), mbValue( bValue ), mnAttribute( nAttribute ) {}
/** Returns the Boolean value of the record. */
inline bool GetBool() const { return mbValue; }
virtual void SaveXml( XclExpXmlStream& rStrm ) override;
private:
/** Writes the body of the record. */
virtual void WriteBody( XclExpStream& rStrm ) override;
private:
bool mbValue; /// The record data.
sal_Int32 mnAttribute; /// The attribute to generate within SaveXml()
};
/** Record which exports a memory data array. */
class XclExpDummyRecord : public XclExpRecord
{
public:
/** @param nRecId The record ID of this record.
@param pRecData Pointer to the data array representing the record body.
@param nRecSize Size of the data array. */
explicit XclExpDummyRecord(
sal_uInt16 nRecId, const void* pRecData, std::size_t nRecSize );
/** Sets a data array. */
void SetData( const void* pRecData, std::size_t nRecSize );
private:
/** Writes the body of the record. */
virtual void WriteBody( XclExpStream& rStrm ) override;
private:
const void* mpData; /// The record data.
};
// Future records =============================================================
class XclExpFutureRecord : public XclExpRecord
{
public:
explicit XclExpFutureRecord( XclFutureRecType eRecType,
sal_uInt16 nRecId, std::size_t nRecSize );
/** Writes the extended record header and calls WriteBody(). */
virtual void Save( XclExpStream& rStrm ) override;
private:
XclFutureRecType meRecType;
};
// List of records ============================================================
/** A list of Excel record objects.
Provides saving the compete list. This class is derived from
XclExpRecordBase, so it can be used as record in another record list.
Requires RecType::Save( XclExpStream& ).
*/
template< typename RecType = XclExpRecordBase >
class XclExpRecordList : public XclExpRecordBase
{
public:
typedef std::shared_ptr< RecType > RecordRefType;
inline bool IsEmpty() const { return maRecs.empty(); }
inline size_t GetSize() const { return maRecs.size(); }
/** Returns true, if the passed index points to an exiting record. */
inline bool HasRecord( size_t nPos ) const
{ return nPos < maRecs.size(); }
/** Returns reference to an existing record or empty reference on error. */
inline RecordRefType GetRecord( size_t nPos ) const
{ return (nPos < maRecs.size()) ? maRecs[ nPos ] : RecordRefType(); }
/** Returns reference to the first existing record or empty reference, if list is empty. */
inline RecordRefType GetFirstRecord() const
{ return maRecs.empty() ? RecordRefType() : maRecs.front(); }
/** Returns reference to the last existing record or empty reference, if list is empty. */
inline RecordRefType GetLastRecord() const
{ return maRecs.empty() ? RecordRefType() : maRecs.back(); }
/** Inserts a record at the specified position into the list. */
inline void InsertRecord( RecordRefType xRec, size_t nPos )
{ if( xRec.get() ) maRecs.insert( maRecs.begin() + ::std::min( nPos, maRecs.size() ), xRec ); }
/** Appends a record to the list. */
inline void AppendRecord( RecordRefType xRec )
{ if( xRec.get() ) maRecs.push_back( xRec ); }
/** Replaces the record at the specified position from the list with the passed record. */
inline void ReplaceRecord( RecordRefType xRec, size_t nPos )
{ RemoveRecord( nPos ); InsertRecord( xRec, nPos ); }
/** Appends a newly created record to the list. */
inline void AppendNewRecord( RecType* pRec )
{ if( pRec ) AppendRecord( RecordRefType( pRec ) ); }
/** Removes the record at the specified position from the list. */
inline void RemoveRecord( size_t nPos )
{ if( nPos < maRecs.size() ) maRecs.erase( maRecs.begin() + nPos ); }
/** Removes all records from the list. */
inline void RemoveAllRecords() { maRecs.clear(); }
/** Writes the complete record list. */
virtual void Save( XclExpStream& rStrm ) override
{
// inlining prevents warning in wntmsci10
for( typename RecordVec::iterator aIt = maRecs.begin(), aEnd = maRecs.end(); aIt != aEnd; ++aIt )
(*aIt)->Save( rStrm );
}
virtual void SaveXml( XclExpXmlStream& rStrm ) override
{
// inlining prevents warning in wntmsci10
for( typename RecordVec::iterator aIt = maRecs.begin(), aEnd = maRecs.end(); aIt != aEnd; ++aIt )
(*aIt)->SaveXml( rStrm );
}
private:
typedef ::std::vector< RecordRefType > RecordVec;
RecordVec maRecs;
};
/** Represents a complete substream of records enclosed into a pair of BOF/EOF records. */
class XclExpSubStream : public XclExpRecordList<>
{
public:
explicit XclExpSubStream( sal_uInt16 nSubStrmType );
/** Writes the complete substream, including leading BOF and trailing EOF. */
virtual void Save( XclExpStream& rStrm ) override;
private:
sal_uInt16 mnSubStrmType; /// Substream type, stored in leading BOF record.
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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