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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef _PDF_TEXT_INT_H_
#define _PDF_TEXT_INT_H_
class CPDF_TextParseOptions : public CFX_Object
{
public:
CPDF_TextParseOptions();
FX_BOOL m_bCheckObjectOrder;
FX_BOOL m_bCheckDirection;
int m_nCheckSameObject;
};
class CPDF_TextPage;
class CPDF_LinkExtract;
class CPDF_TextPageFind;
class CPDF_DocProgressiveSearch;
#define FPDFTEXT_CHAR_ERROR -1
#define FPDFTEXT_CHAR_NORMAL 0
#define FPDFTEXT_CHAR_GENERATED 1
#define FPDFTEXT_CHAR_UNUNICODE 2
#define FPDFTEXT_CHAR_HYPHEN 3
#define FPDFTEXT_CHAR_PIECE 4
#define FPDFTEXT_MC_PASS 0
#define FPDFTEXT_MC_DONE 1
#define FPDFTEXT_MC_DELAY 2
typedef struct _PAGECHAR_INFO: public CFX_Object {
int m_CharCode;
FX_WCHAR m_Unicode;
FX_FLOAT m_OriginX;
FX_FLOAT m_OriginY;
FX_INT32 m_Flag;
CFX_FloatRect m_CharBox;
CPDF_TextObject* m_pTextObj;
CFX_AffineMatrix m_Matrix;
int m_Index;
} PAGECHAR_INFO;
typedef CFX_SegmentedArray<PAGECHAR_INFO> PAGECHAR_InfoArray;
typedef struct {
int m_Start;
int m_nCount;
} FPDF_SEGMENT;
typedef CFX_ArrayTemplate<FPDF_SEGMENT> SEGMENT_Array;
typedef struct {
CPDF_TextObject* m_pTextObj;
CFX_AffineMatrix m_formMatrix;
} PDFTEXT_Obj;
typedef CFX_ArrayTemplate<PDFTEXT_Obj> LINEOBJ;
class CPDF_TextPage: public IPDF_TextPage
{
public:
CPDF_TextPage(const CPDF_Page* pPage, int flags = 0);
CPDF_TextPage(const CPDF_PageObjects* pPage, int flags = 0);
CPDF_TextPage(const CPDF_Page* pPage, CPDFText_ParseOptions ParserOptions);
virtual FX_BOOL ParseTextPage();
virtual void NormalizeObjects(FX_BOOL bNormalize);
virtual FX_BOOL IsParsered() const
{
return m_IsParsered;
}
virtual ~CPDF_TextPage() {};
public:
virtual int CharIndexFromTextIndex(int TextIndex)const ;
virtual int TextIndexFromCharIndex(int CharIndex)const;
virtual int CountChars() const;
virtual void GetCharInfo(int index, FPDF_CHAR_INFO & info) const;
virtual void GetRectArray(int start, int nCount, CFX_RectArray& rectArray) const;
virtual int GetIndexAtPos(CPDF_Point point, FX_FLOAT xTorelance, FX_FLOAT yTorelance) const;
virtual int GetIndexAtPos(FX_FLOAT x, FX_FLOAT y, FX_FLOAT xTorelance,
FX_FLOAT yTorelance) const;
virtual CFX_WideString GetTextByRect(const CFX_FloatRect& rect) const;
virtual void GetRectsArrayByRect(const CFX_FloatRect& rect, CFX_RectArray& resRectArray) const;
virtual int GetOrderByDirection(int order, int direction) const;
virtual CFX_WideString GetPageText(int start = 0, int nCount = -1) const;
virtual int CountRects(int start, int nCount);
virtual void GetRect(int rectIndex, FX_FLOAT& left, FX_FLOAT& top
, FX_FLOAT& right, FX_FLOAT &bottom) const;
virtual FX_BOOL GetBaselineRotate(int rectIndex, int& Rotate);
virtual FX_BOOL GetBaselineRotate(const CFX_FloatRect& rect, int& Rotate);
virtual int CountBoundedSegments(FX_FLOAT left, FX_FLOAT top,
FX_FLOAT right, FX_FLOAT bottom, FX_BOOL bContains = FALSE);
virtual void GetBoundedSegment(int index, int& start, int& count) const;
virtual int GetWordBreak(int index, int direction) const;
public:
const PAGECHAR_InfoArray* GetCharList() const
{
return &m_charList;
}
static FX_BOOL IsRectIntersect(const CFX_FloatRect& rect1, const CFX_FloatRect& rect2);
static FX_BOOL IsLetter(FX_WCHAR unicode);
private:
FX_BOOL IsHyphen(FX_WCHAR curChar);
FX_BOOL IsControlChar(PAGECHAR_INFO* pCharInfo);
FX_BOOL GetBaselineRotate(int start, int end, int& Rotate);
void ProcessObject();
void ProcessFormObject(CPDF_FormObject* pFormObj, const CFX_AffineMatrix& formMatrix);
void ProcessTextObject(PDFTEXT_Obj pObj);
void ProcessTextObject(CPDF_TextObject* pTextObj, const CFX_AffineMatrix& formMatrix, FX_POSITION ObjPos);
int ProcessInsertObject(const CPDF_TextObject* pObj, const CFX_AffineMatrix& formMatrix);
FX_BOOL GenerateCharInfo(FX_WCHAR unicode, PAGECHAR_INFO& info);
FX_BOOL IsSameAsPreTextObject(CPDF_TextObject* pTextObj, FX_POSITION ObjPos);
FX_BOOL IsSameTextObject(CPDF_TextObject* pTextObj1, CPDF_TextObject* pTextObj2);
int GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const;
void CloseTempLine();
void OnPiece(IFX_BidiChar* pBidi, CFX_WideString& str);
FX_INT32 PreMarkedContent(PDFTEXT_Obj pObj);
void ProcessMarkedContent(PDFTEXT_Obj pObj);
void CheckMarkedContentObject(FX_INT32& start, FX_INT32& nCount) const;
void FindPreviousTextObject(void);
void AddCharInfoByLRDirection(CFX_WideString& str, int i);
void AddCharInfoByRLDirection(CFX_WideString& str, int i);
FX_INT32 GetTextObjectWritingMode(const CPDF_TextObject* pTextObj);
FX_INT32 FindTextlineFlowDirection();
void SwapTempTextBuf(FX_INT32 iCharListStartAppend,
FX_INT32 iBufStartAppend);
FX_BOOL IsRightToLeft(const CPDF_TextObject* pTextObj,
const CPDF_Font* pFont,
int nItems) const;
protected:
CPDFText_ParseOptions m_ParseOptions;
CFX_WordArray m_CharIndex;
const CPDF_PageObjects* m_pPage;
PAGECHAR_InfoArray m_charList;
CFX_WideTextBuf m_TextBuf;
PAGECHAR_InfoArray m_TempCharList;
CFX_WideTextBuf m_TempTextBuf;
int m_parserflag;
CPDF_TextObject* m_pPreTextObj;
CFX_AffineMatrix m_perMatrix;
FX_BOOL m_IsParsered;
CFX_AffineMatrix m_DisplayMatrix;
SEGMENT_Array m_Segment;
CFX_RectArray m_SelRects;
LINEOBJ m_LineObj;
FX_BOOL m_TextlineDir;
CFX_FloatRect m_CurlineRect;
};
class CPDF_TextPageFind: public IPDF_TextPageFind
{
public:
CPDF_TextPageFind(const IPDF_TextPage* pTextPage);
virtual ~CPDF_TextPageFind() {};
public:
virtual FX_BOOL FindFirst(const CFX_WideString& findwhat, int flags, int startPos = 0);
virtual FX_BOOL FindNext();
virtual FX_BOOL FindPrev();
virtual void GetRectArray(CFX_RectArray& rects) const;
virtual int GetCurOrder() const;
virtual int GetMatchedCount()const;
protected:
void ExtractFindWhat(const CFX_WideString& findwhat);
FX_BOOL IsMatchWholeWord(const CFX_WideString& csPageText, int startPos, int endPos);
FX_BOOL ExtractSubString(CFX_WideString& rString, FX_LPCWSTR lpszFullString,
int iSubString, FX_WCHAR chSep);
CFX_WideString MakeReverse(const CFX_WideString& str);
int ReverseFind(const CFX_WideString& csPageText, const CFX_WideString& csWord, int nStartPos, int& WordLength);
int GetCharIndex(int index) const;
private:
CFX_WordArray m_CharIndex;
const IPDF_TextPage* m_pTextPage;
CFX_WideString m_strText;
CFX_WideString m_findWhat;
int m_flags;
CFX_WideStringArray m_csFindWhatArray;
int m_findNextStart;
int m_findPreStart;
FX_BOOL m_bMatchCase;
FX_BOOL m_bMatchWholeWord;
int m_resStart;
int m_resEnd;
CFX_RectArray m_resArray;
FX_BOOL m_IsFind;
};
class CPDF_LinkExt: public CFX_Object
{
public:
CPDF_LinkExt() {};
int m_Start;
int m_Count;
CFX_WideString m_strUrl;
virtual ~CPDF_LinkExt() {};
};
typedef CFX_ArrayTemplate<CPDF_LinkExt*> LINK_InfoArray;
class CPDF_LinkExtract: public IPDF_LinkExtract
{
public:
CPDF_LinkExtract();
virtual ~CPDF_LinkExtract();
virtual FX_BOOL ExtractLinks(const IPDF_TextPage* pTextPage);
virtual FX_BOOL IsExtract() const
{
return m_IsParserd;
}
public:
virtual int CountLinks() const;
virtual CFX_WideString GetURL(int index) const;
virtual void GetBoundedSegment(int index, int& start, int& count) const;
virtual void GetRects(int index, CFX_RectArray& rects)const;
protected:
void parserLink();
void DeleteLinkList();
FX_BOOL CheckWebLink(CFX_WideString& strBeCheck);
FX_BOOL CheckMailLink(CFX_WideString& str);
FX_BOOL AppendToLinkList(int start, int count, const CFX_WideString& strUrl);
private:
LINK_InfoArray m_LinkList;
const CPDF_TextPage* m_pTextPage;
CFX_WideString m_strPageText;
FX_BOOL m_IsParserd;
};
FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_LPWSTR pDst);
void NormalizeString(CFX_WideString& str);
void NormalizeCompositeChar(FX_WCHAR wChar, CFX_WideString& sDest);
#endif
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