hwpfile.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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 .
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// hwpfile.h
// (C) 1998 Mizi Research, All rights are reserved
 
 
#ifndef INCLUDED_HWPFILTER_SOURCE_HWPFILE_H
#define INCLUDED_HWPFILTER_SOURCE_HWPFILE_H
 
#include <algorithm>
#include <memory>
#include <vector>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <sal/types.h>
#include "hwplib.h"
#include "hfont.h"
#include "hstyle.h"
#include "hpara.h"
 
#define HWPIDLen    30
#define V20SIGNATURE    "HWP Document File V2.00 \032\1\2\3\4\5"
#define V21SIGNATURE    "HWP Document File V2.10 \032\1\2\3\4\5"
#define V30SIGNATURE    "HWP Document File V3.00 \032\1\2\3\4\5"
 
#define HWP_V20 20
#define HWP_V21 21
#define HWP_V30 30
 
int detect_hwp_version(const char *str);
 
struct  FBox;
struct  EmPicture;
struct  HyperText;
struct  FBoxStyle;
struct  CellLine;
struct  Cell;
struct  OlePicture;
struct  Picture;
struct  HeaderFooter;
struct  ShowPageNum;
struct  DateCode;
struct  Table;
 
class   HIODev;
class   HWPInfo;
class   HWPFont;
class   HWPStyle;
class   HWPPara;
class   HStream;
 
struct ColumnInfo{
    int start_page;
    bool bIsSet;
    std::shared_ptr<ColumnDef> xColdef;
    explicit ColumnInfo(int num){
        start_page = num;
        bIsSet = false;
    }
};
 
class DLLEXPORT HWPFile
{
    public:
        HWPFile();
        ~HWPFile();
 
    public:
 
        int Open( std::unique_ptr<HStream> );
 
        int State( void ) const { return error_code;}
        int SetState(int errcode);
        bool Read1b(unsigned char &out);
        bool Read1b(char &out);
        bool Read2b(unsigned short &out);
        bool Read2b(char16_t &out);
        bool Read4b(unsigned int &out);
        bool Read4b(int &out);
        size_t Read2b(void *ptr, size_t nmemb);
 
        size_t ReadBlock( void *ptr, size_t size );
        size_t SkipBlock( size_t size );
        void ReadParaList(std::vector<std::unique_ptr<HWPPara>> &aplist, unsigned char flag = 0);
        void ReadParaList(std::vector<HWPPara*> &aplist);
        void SetCompressed( bool );
        std::unique_ptr<HIODev> SetIODevice( std::unique_ptr<HIODev> hiodev );
 
        int ReadHwpFile( std::unique_ptr<HStream> );
        void InfoRead(void);
        void FontRead(void);
        void StyleRead(void);
        void ParaListRead();
/* 그림 등의 추가 정보를 읽는다. */
        void TagsRead();
 
        enum Paper
        {
            UserPaper = 0,
            Col80Paper = 1,
            Col132Paper = 2,
            A4Paper = 3,
            LetterPaper = 4,
            B5Paper = 5,
            B4Paper = 6,
            LegalPaper = 7,
            A3Paper = 8
        };
 
        void AddPage(){ m_nCurrentPage++;}
        void AddColumnInfo();
        void SetColumnDef(std::shared_ptr<ColumnDef> const &);
        void AddParaShape(std::shared_ptr<ParaShape> const &);
        void AddCharShape(std::shared_ptr<CharShape> const &);
        void AddFBoxStyle(FBoxStyle *);
        void AddDateFormat(DateCode *);
        void AddHeaderFooter(HeaderFooter *);
        void AddPageNumber(ShowPageNum *);
        void AddTable(std::unique_ptr<Table>);
 
        ColumnDef* GetColumnDef(int);
          int GetPageMasterNum(int page);
 
        int getCurrentPage() const{ return m_nCurrentPage;}
        HWPInfo& GetHWPInfo(void) { return _hwpInfo; }
        HWPFont& GetHWPFont(void) { return _hwpFont; }
        HWPStyle& GetHWPStyle(void) { return _hwpStyle; }
        HWPPara *GetFirstPara(void) { return !plist.empty() ? plist.front().get() : nullptr; }
 
        EmPicture *GetEmPicture(Picture *pic);
        EmPicture *GetEmPictureByName(char * name);
        HyperText *GetHyperText();
        ParaShape *getParaShape(int);
        CharShape *getCharShape(int);
        FBoxStyle *getFBoxStyle(int);
        DateCode *getDateCode(int);
          HeaderFooter *getHeaderFooter(int);
        ShowPageNum *getPageNumber(int);
          Table *getTable(int);
 
        int getParaShapeCount() const{ return pslist.size(); }
        int getCharShapeCount() const{ return cslist.size(); }
        int getFBoxStyleCount() const{ return fbslist.size(); }
        int getDateFormatCount() const{ return datecodes.size(); }
        int getHeaderFooterCount() const{ return headerfooters.size(); }
        int getPageNumberCount() const{ return pagenumbers.size(); }
        int getTableCount() const{ return tables.size(); }
        int getColumnCount() const{ return columnlist.size(); }
 
          int getMaxSettedPage() const{ return m_nMaxSettedPage; }
          void setMaxSettedPage(){ m_nMaxSettedPage = m_nCurrentPage; }
 
        void push_hpara_type(unsigned char scflag) { element_import_stack.push_back(scflag); }
        bool already_importing_type(unsigned char scflag) const
        {
            return std::find(element_import_stack.begin(), element_import_stack.end(), scflag) != element_import_stack.end();
        }
        void pop_hpara_type() { element_import_stack.pop_back(); }
 
        void move_to_failed(std::unique_ptr<HWPPara> rPara);
 
    private:
        int compareCharShape(CharShape const *shape);
        int compareParaShape(ParaShape const *shape);
 
    public:
        int   version;
        bool  compressed;
        bool  encrypted;
        unsigned char linenumber;
        int   info_block_len;
        int   error_code;
        std::unique_ptr<OlePicture> oledata;
        unsigned char scratch[SAL_MAX_UINT16];
        int readdepth;
 
    private:
/* hwp 파일 이름 */
        int m_nCurrentPage;
        int m_nMaxSettedPage;
        std::unique_ptr<HIODev> hiodev;
// read hwp contents
        HWPInfo   _hwpInfo;
        HWPFont   _hwpFont;
        HWPStyle  _hwpStyle;
        std::vector<std::unique_ptr<ColumnInfo>> columnlist;
        // paragraph list
        std::vector<std::unique_ptr<HWPPara>> plist;
        // keep paragraph's that failed to load until
        // import is complete to avoid dangling references
        // elsewhere
        std::vector<std::unique_ptr<HWPPara>> pfailedlist;
        // embedded picture list(tag data)
        std::vector<std::unique_ptr<EmPicture>> emblist;
        std::vector<std::unique_ptr<HyperText>> hyperlist;
        int currenthyper;
        std::vector<std::shared_ptr<ParaShape>> pslist;
        std::vector<std::shared_ptr<CharShape>> cslist;
        std::vector<FBoxStyle*> fbslist;
        std::vector<DateCode*> datecodes;
        std::vector<HeaderFooter*> headerfooters;
        std::vector<ShowPageNum*> pagenumbers;
        std::vector<std::unique_ptr<Table>> tables;
        //track the stack of HParas types we're currently importing
        std::vector<unsigned char> element_import_stack;
 
// for global document handling
        static HWPFile *cur_doc;
        friend HWPFile *GetCurrentDoc(void);
        friend HWPFile *SetCurrentDoc(HWPFile *);
};
 
class DLLEXPORT DepthGuard
{
private:
    HWPFile& m_rFile;
public:
    DepthGuard(HWPFile &rFile)
        : m_rFile(rFile)
    {
        ++m_rFile.readdepth;
    }
    bool toodeep() const
    {
        return m_rFile.readdepth == 512;
    }
    ~DepthGuard()
    {
        --m_rFile.readdepth;
    }
};
 
HWPFile *GetCurrentDoc(void);
HWPFile *SetCurrentDoc(HWPFile *hwpfp);
#endif // INCLUDED_HWPFILTER_SOURCE_HWPFILE_H
 
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