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-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
-/*************************************************************************
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * Copyright 2000, 2010 Oracle and/or its affiliates.
- *
- * OpenOffice.org - a multi-platform office productivity suite
- *
- * This file is part of OpenOffice.org.
- *
- * OpenOffice.org is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License version 3
- * only, as published by the Free Software Foundation.
- *
- * OpenOffice.org is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License version 3 for more details
- * (a copy is included in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU Lesser General Public License
- * version 3 along with OpenOffice.org. If not, see
- * <http://www.openoffice.org/license.html>
- * for a copy of the LGPLv3 License.
- *
- ************************************************************************/
-
-#ifndef INCLUDED_PDFI_PDFPARSE_HXX
-#define INCLUDED_PDFI_PDFPARSE_HXX
-
-#include <sal/types.h>
-#include <rtl/ustring.hxx>
-#include <rtl/string.hxx>
-
-#include <vector>
-#include <boost/unordered_map.hpp>
-
-namespace pdfparse
-{
-
-struct EmitImplData;
-struct PDFContainer;
-class EmitContext
-{
- public:
- virtual bool write( const void* pBuf, unsigned int nLen ) = 0;
- virtual unsigned int getCurPos() = 0;
- virtual bool copyOrigBytes( unsigned int nOrigOffset, unsigned int nLen ) = 0;
- virtual unsigned int readOrigBytes( unsigned int nOrigOffset, unsigned int nLen, void* pBuf ) = 0;
-
- EmitContext( const PDFContainer* pTop = NULL );
- virtual ~EmitContext();
-
- // set this to deflate contained streams
- bool m_bDeflate;
- // set this to decrypt the PDF file
- bool m_bDecrypt;
-
- private:
- friend struct PDFEntry;
- EmitImplData* m_pImplData;
-};
-
-struct PDFEntry
-{
- PDFEntry() {}
- virtual ~PDFEntry();
-
- virtual bool emit( EmitContext& rWriteContext ) const = 0;
- virtual PDFEntry* clone() const = 0;
-
- protected:
- EmitImplData* getEmitData( EmitContext& rContext ) const;
- void setEmitData( EmitContext& rContext, EmitImplData* pNewEmitData ) const;
-};
-
-struct PDFComment : public PDFEntry
-{
- rtl::OString m_aComment;
-
- PDFComment( const rtl::OString& rComment )
- : PDFEntry(), m_aComment( rComment ) {}
- virtual ~PDFComment();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFValue : public PDFEntry
-{
- // abstract base class for simple values
- PDFValue() : PDFEntry() {}
- virtual ~PDFValue();
-};
-
-struct PDFName : public PDFValue
-{
- rtl::OString m_aName;
-
- PDFName( const rtl::OString& rName )
- : PDFValue(), m_aName( rName ) {}
- virtual ~PDFName();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- rtl::OUString getFilteredName() const;
-};
-
-struct PDFString : public PDFValue
-{
- rtl::OString m_aString;
-
- PDFString( const rtl::OString& rString )
- : PDFValue(), m_aString( rString ) {}
- virtual ~PDFString();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- rtl::OString getFilteredString() const;
-};
-
-struct PDFNumber : public PDFValue
-{
- double m_fValue;
-
- PDFNumber( double fVal )
- : PDFValue(), m_fValue( fVal ) {}
- virtual ~PDFNumber();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFBool : public PDFValue
-{
- bool m_bValue;
-
- PDFBool( bool bVal )
- : PDFValue(), m_bValue( bVal ) {}
- virtual ~PDFBool();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFObjectRef : public PDFValue
-{
- unsigned int m_nNumber;
- unsigned int m_nGeneration;
-
- PDFObjectRef( unsigned int nNr, unsigned int nGen )
- : PDFValue(), m_nNumber( nNr ), m_nGeneration( nGen ) {}
- virtual ~PDFObjectRef();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFNull : public PDFValue
-{
- PDFNull() {}
- virtual ~PDFNull();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFObject;
-struct PDFContainer : public PDFEntry
-{
- sal_Int32 m_nOffset;
- std::vector<PDFEntry*> m_aSubElements;
-
- // this is an abstract base class for identifying
- // entries that can contain sub elements besides comments
- PDFContainer() : PDFEntry(), m_nOffset( 0 ) {}
- virtual ~PDFContainer();
- virtual bool emitSubElements( EmitContext& rWriteContext ) const;
- virtual void cloneSubElements( std::vector<PDFEntry*>& rNewSubElements ) const;
-
- PDFObject* findObject( unsigned int nNumber, unsigned int nGeneration ) const;
- PDFObject* findObject( PDFObjectRef* pRef ) const
- { return findObject( pRef->m_nNumber, pRef->m_nGeneration ); }
-};
-
-struct PDFArray : public PDFContainer
-{
- PDFArray() {}
- virtual ~PDFArray();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFDict : public PDFContainer
-{
- typedef boost::unordered_map<rtl::OString,PDFEntry*,rtl::OStringHash> Map;
- Map m_aMap;
-
- PDFDict() {}
- virtual ~PDFDict();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- // inserting a value of NULL will remove rName and the previous value
- // from the dictionary
- void insertValue( const rtl::OString& rName, PDFEntry* pValue );
- // removes a name/value pair from the dict
- void eraseValue( const rtl::OString& rName );
- // builds new map as of sub elements
- // returns NULL if successfull, else the first offending element
- PDFEntry* buildMap();
-};
-
-struct PDFStream : public PDFEntry
-{
- unsigned int m_nBeginOffset;
- unsigned int m_nEndOffset; // offset of the byte after the stream
- PDFDict* m_pDict;
-
- PDFStream( unsigned int nBegin, unsigned int nEnd, PDFDict* pStreamDict )
- : PDFEntry(), m_nBeginOffset( nBegin ), m_nEndOffset( nEnd ), m_pDict( pStreamDict ) {}
- virtual ~PDFStream();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- unsigned int getDictLength( const PDFContainer* pObjectContainer = NULL ) const; // get contents of the "Length" entry of the dict
-};
-
-struct PDFTrailer : public PDFContainer
-{
- PDFDict* m_pDict;
-
- PDFTrailer() : PDFContainer(), m_pDict( NULL ) {}
- virtual ~PDFTrailer();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-struct PDFFileImplData;
-struct PDFFile : public PDFContainer
-{
- private:
- mutable PDFFileImplData* m_pData;
- PDFFileImplData* impl_getData() const;
- public:
- unsigned int m_nMajor; // PDF major
- unsigned int m_nMinor; // PDF minor
-
- PDFFile()
- : PDFContainer(),
- m_pData( NULL ),
- m_nMajor( 0 ), m_nMinor( 0 )
- {}
- virtual ~PDFFile();
-
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- bool isEncrypted() const;
- // this method checks whether rPwd is compatible with
- // either user or owner password and sets up decrypt data in that case
- // returns true if decryption can be done
- bool setupDecryptionData( const rtl::OString& rPwd ) const;
-
- bool decrypt( const sal_uInt8* pInBuffer, sal_uInt32 nLen,
- sal_uInt8* pOutBuffer,
- unsigned int nObject, unsigned int nGeneration ) const;
-
- rtl::OUString getDecryptionKey() const;
-};
-
-struct PDFObject : public PDFContainer
-{
- PDFEntry* m_pObject;
- PDFStream* m_pStream;
- unsigned int m_nNumber;
- unsigned int m_nGeneration;
-
- PDFObject( unsigned int nNr, unsigned int nGen )
- : m_pObject( NULL ), m_pStream( NULL ), m_nNumber( nNr ), m_nGeneration( nGen ) {}
- virtual ~PDFObject();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-
- // writes only the contained stream, deflated if necessary
- bool writeStream( EmitContext& rContext, const PDFFile* pPDFFile ) const;
-
- private:
- // returns true if stream is deflated
- // fills *ppStream and *pBytes with start of stream and count of bytes
- // memory returned in *ppStream must be freed with rtl_freeMemory afterwards
- // fills in NULL and 0 in case of error
- bool getDeflatedStream( char** ppStream, unsigned int* pBytes, const PDFContainer* pObjectContainer, EmitContext& rContext ) const;
-};
-
-struct PDFPart : public PDFContainer
-{
- PDFPart() : PDFContainer() {}
- virtual ~PDFPart();
- virtual bool emit( EmitContext& rWriteContext ) const;
- virtual PDFEntry* clone() const;
-};
-
-class PDFReader
-{
- public:
- PDFReader() {}
- ~PDFReader() {}
-
- PDFEntry* read( const char* pFileName );
- PDFEntry* read( const char* pBuffer, unsigned int nLen );
-};
-
-} // namespace
-
-#endif
-
-/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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