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108 lines
3.9 KiB
C++
108 lines
3.9 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2016
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#pragma once
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#include "../../../../Common/3dParty/pole/pole.h"
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#include "CFRecordType.h"
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#include "BinSmartPointers.h"
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namespace XLS
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{
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// Binary representation of a stream in BIFF8
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class CFStream
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{
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public:
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CFStream(POLE::Stream* stream);
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~CFStream();
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template<class Type>
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CFStream& operator>>(Type& val) // Read a simple type or an object (not array)
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{
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read(&val, sizeof(Type));
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return *this;
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}
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template<class Type>
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CFStream& operator<<(Type& val) // Write a simple type or an object (not array)
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{
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write(&val, sizeof(Type));
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return *this;
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}
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void read(void* buf, const size_t size); // Read 'size' unsigned chars from the stream
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void write(const void* buf, const size_t size); // Write 'size' unsigned chars to the stream
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void seekFromCurForward(const size_t offset);
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void seekFromBegin(const unsigned long offset);
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void seekToEnd();
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// If the current pointer is exactly at the end of the stream.
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const bool isEOF() const;
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// Stream pointer
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const unsigned long getStreamPointer() const;
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// Stream current size
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const unsigned long getStreamSize() const;
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typedef void (*DELAYED_DATA_SAVER)(CFStream& stream, const unsigned int data_place, const unsigned int data);
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typedef struct
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{
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DELAYED_DATA_SAVER fn;
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unsigned int data_place;
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size_t data_size;
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CFRecordType::TypeId receiver_id;
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} ReceiverItem;
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typedef std::list<ReceiverItem> ReceiverItems;
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typedef struct
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{
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unsigned int data;
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CFRecordType::TypeId receiver_id;
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CFRecordType::TypeId source_id;
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bool is_file_ptr;
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} SourceItem;
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typedef std::list<SourceItem> SourceItems;
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// Write 'size' unsigned chars to the stream and append passed delayed items and after that apply all stored delayed items
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void writeAndApplyDelayedItems(void* buf, const size_t size, const ReceiverItems& receiver_items_from_record, const SourceItems& source_items_from_record);
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// The file pointer of the start of the record will be appended to all receiver items 'data_place' fields
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// Then all items will be appended to the common queue
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void appendDelayedItems(const ReceiverItems& receiver_items_from_record, const SourceItems& source_items_from_record);
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void applyDelayedItems();
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private:
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POLE::Stream * stream_;
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CFStream::ReceiverItems receiver_items;
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CFStream::SourceItems source_items;
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};
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} // namespace XLS
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