1// Copyright 2014 PDFium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7#ifndef _FPDF_TEXT_H_ 8#define _FPDF_TEXT_H_ 9#ifndef _FPDF_PARSER_ 10#include "../fpdfapi/fpdf_parser.h" 11#endif 12#ifndef _FPDF_PAGEOBJ_H_ 13#include "../fpdfapi/fpdf_pageobj.h" 14#endif 15#ifndef _FPDF_PAGE_ 16#include "../fpdfapi/fpdf_page.h" 17#endif 18class CPDF_PageObjects; 19#define PDF2TXT_AUTO_ROTATE 1 20#define PDF2TXT_AUTO_WIDTH 2 21#define PDF2TXT_KEEP_COLUMN 4 22#define PDF2TXT_USE_OCR 8 23#define PDF2TXT_INCLUDE_INVISIBLE 16 24void PDF_GetPageText(CFX_ByteStringArray& lines, CPDF_Document* pDoc, CPDF_Dictionary* pPage, 25 int iMinWidth, FX_DWORD flags); 26void PDF_GetPageText_Unicode(CFX_WideStringArray& lines, CPDF_Document* pDoc, CPDF_Dictionary* pPage, 27 int iMinWidth, FX_DWORD flags); 28void PDF_GetTextStream_Unicode(CFX_WideTextBuf& buffer, CPDF_Document* pDoc, CPDF_Dictionary* pPage, 29 FX_DWORD flags); 30CFX_WideString PDF_GetFirstTextLine_Unicode(CPDF_Document* pDoc, CPDF_Dictionary* pPage); 31class IPDF_TextPage; 32class IPDF_LinkExtract; 33class IPDF_TextPageFind; 34#define CHAR_ERROR -1 35#define CHAR_NORMAL 0 36#define CHAR_GENERATED 1 37#define CHAR_UNUNICODE 2 38typedef struct { 39 FX_WCHAR m_Unicode; 40 FX_WCHAR m_Charcode; 41 FX_INT32 m_Flag; 42 FX_FLOAT m_FontSize; 43 FX_FLOAT m_OriginX; 44 FX_FLOAT m_OriginY; 45 CFX_FloatRect m_CharBox; 46 CPDF_TextObject* m_pTextObj; 47 CFX_AffineMatrix m_Matrix; 48} FPDF_CHAR_INFO; 49typedef CFX_ArrayTemplate<CFX_FloatRect> CFX_RectArray; 50#define FPDFTEXT_LRTB 0 51#define FPDFTEXT_RLTB 1 52#define FPDFTEXT_TBRL 2 53#define FPDFTEXT_LEFT -1 54#define FPDFTEXT_RIGHT 1 55#define FPDFTEXT_UP -2 56#define FPDFTEXT_DOWN 2 57class IPDF_ReflowedPage; 58#define FPDFTEXT_WRITINGMODE_UNKNOW 0 59#define FPDFTEXT_WRITINGMODE_LRTB 1 60#define FPDFTEXT_WRITINGMODE_RLTB 2 61#define FPDFTEXT_WRITINGMODE_TBRL 3 62class CPDFText_ParseOptions : public CFX_Object 63{ 64public: 65 66 CPDFText_ParseOptions(); 67 FX_BOOL m_bGetCharCodeOnly; 68 FX_BOOL m_bNormalizeObjs; 69 FX_BOOL m_bOutputHyphen; 70}; 71class IPDF_TextPage : public CFX_Object 72{ 73public: 74 75 virtual ~IPDF_TextPage() {} 76 static IPDF_TextPage* CreateTextPage(const CPDF_Page* pPage, CPDFText_ParseOptions ParserOptions); 77 static IPDF_TextPage* CreateTextPage(const CPDF_Page* pPage, int flags = 0); 78 static IPDF_TextPage* CreateTextPage(const CPDF_PageObjects* pObjs, int flags = 0); 79 static IPDF_TextPage* CreateReflowTextPage(IPDF_ReflowedPage* pRefPage); 80 81 virtual void NormalizeObjects(FX_BOOL bNormalize) = 0; 82 83 virtual FX_BOOL ParseTextPage() = 0; 84 85 86 virtual FX_BOOL IsParsered() const = 0; 87public: 88 89 virtual int CharIndexFromTextIndex(int TextIndex) const = 0; 90 91 virtual int TextIndexFromCharIndex(int CharIndex) const = 0; 92 93 94 virtual int CountChars() const = 0; 95 96 virtual void GetCharInfo(int index, FPDF_CHAR_INFO & info) const = 0; 97 98 virtual void GetRectArray(int start, int nCount, CFX_RectArray& rectArray) const = 0; 99 100 101 102 virtual int GetIndexAtPos(CPDF_Point point, FX_FLOAT xTorelance, FX_FLOAT yTorelance) const = 0; 103 104 virtual int GetIndexAtPos(FX_FLOAT x, FX_FLOAT y, FX_FLOAT xTorelance, FX_FLOAT yTorelance) const = 0; 105 106 virtual int GetOrderByDirection(int index, int direction) const = 0; 107 108 virtual CFX_WideString GetTextByRect(CFX_FloatRect rect) const = 0; 109 110 virtual void GetRectsArrayByRect(CFX_FloatRect rect, CFX_RectArray& resRectArray) const = 0; 111 112 113 virtual int CountRects(int start, int nCount) = 0; 114 115 virtual void GetRect(int rectIndex, FX_FLOAT& left, FX_FLOAT& top, FX_FLOAT& right, FX_FLOAT &bottom) const = 0; 116 117 virtual FX_BOOL GetBaselineRotate(int rectIndex, int& Rotate) = 0; 118 119 virtual FX_BOOL GetBaselineRotate(CFX_FloatRect rect, int& Rotate) = 0; 120 121 virtual int CountBoundedSegments(FX_FLOAT left, FX_FLOAT top, FX_FLOAT right, FX_FLOAT bottom, FX_BOOL bContains = FALSE) = 0; 122 123 virtual void GetBoundedSegment(int index, int& start, int& count) const = 0; 124 125 126 virtual int GetWordBreak(int index, int direction) const = 0; 127 128 virtual CFX_WideString GetPageText(int start = 0, int nCount = -1 ) const = 0; 129}; 130#define FPDFTEXT_MATCHCASE 0x00000001 131#define FPDFTEXT_MATCHWHOLEWORD 0x00000002 132#define FPDFTEXT_CONSECUTIVE 0x00000004 133class IPDF_TextPageFind : public CFX_Object 134{ 135public: 136 137 virtual ~IPDF_TextPageFind() {} 138 139 static IPDF_TextPageFind* CreatePageFind(const IPDF_TextPage* pTextPage); 140public: 141 142 virtual FX_BOOL FindFirst(CFX_WideString findwhat, int flags, int startPos = 0) = 0; 143 144 virtual FX_BOOL FindNext() = 0; 145 146 virtual FX_BOOL FindPrev() = 0; 147 148 virtual void GetRectArray(CFX_RectArray& rects) const = 0; 149 150 virtual int GetCurOrder() const = 0; 151 152 virtual int GetMatchedCount() const = 0; 153}; 154class IPDF_LinkExtract : public CFX_Object 155{ 156public: 157 158 virtual ~IPDF_LinkExtract() {} 159 160 static IPDF_LinkExtract* CreateLinkExtract(); 161 162 virtual FX_BOOL ExtractLinks(const IPDF_TextPage* pTextPage) = 0; 163public: 164 165 virtual int CountLinks() const = 0; 166 167 virtual CFX_WideString GetURL(int index) const = 0; 168 169 virtual void GetBoundedSegment(int index, int& start, int& count) const = 0; 170 171 virtual void GetRects(int index, CFX_RectArray& rects) const = 0; 172}; 173#endif 174