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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 CORE_FPDFTEXT_TEXT_INT_H_
+#define CORE_FPDFTEXT_TEXT_INT_H_
+
+#include <deque>
+#include <vector>
+
+#include "core/include/fpdfapi/fpdf_page.h"
+#include "core/include/fpdftext/fpdf_text.h"
+#include "core/include/fxcrt/fx_basic.h"
+
+class CFX_BidiChar;
+class CPDF_FormObject;
+class CPDF_LinkExtract;
+class CPDF_TextPageFind;
+
+#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
+
+struct PAGECHAR_INFO {
+ int m_CharCode;
+ FX_WCHAR m_Unicode;
+ FX_FLOAT m_OriginX;
+ FX_FLOAT m_OriginY;
+ int32_t m_Flag;
+ CFX_FloatRect m_CharBox;
+ CPDF_TextObject* m_pTextObj;
+ CFX_Matrix m_Matrix;
+ int m_Index;
+};
+
+struct FPDF_SEGMENT {
+ int m_Start;
+ int m_nCount;
+};
+
+struct PDFTEXT_Obj {
+ CPDF_TextObject* m_pTextObj;
+ CFX_Matrix m_formMatrix;
+};
+
+class CPDF_TextPage : public IPDF_TextPage {
+ public:
+ CPDF_TextPage(const CPDF_Page* pPage, int flags);
+ ~CPDF_TextPage() override {}
+
+ // IPDF_TextPage:
+ void ParseTextPage() override;
+ bool IsParsed() const override { return m_bIsParsed; }
+ int CharIndexFromTextIndex(int TextIndex) const override;
+ int TextIndexFromCharIndex(int CharIndex) const override;
+ int CountChars() const override;
+ void GetCharInfo(int index, FPDF_CHAR_INFO* info) const override;
+ void GetRectArray(int start,
+ int nCount,
+ CFX_RectArray& rectArray) const override;
+ int GetIndexAtPos(CFX_FloatPoint point,
+ FX_FLOAT xTolerance,
+ FX_FLOAT yTolerance) const override;
+ int GetIndexAtPos(FX_FLOAT x,
+ FX_FLOAT y,
+ FX_FLOAT xTolerance,
+ FX_FLOAT yTolerance) const override;
+ CFX_WideString GetTextByRect(const CFX_FloatRect& rect) const override;
+ void GetRectsArrayByRect(const CFX_FloatRect& rect,
+ CFX_RectArray& resRectArray) const override;
+ CFX_WideString GetPageText(int start = 0, int nCount = -1) const override;
+ int CountRects(int start, int nCount) override;
+ void GetRect(int rectIndex,
+ FX_FLOAT& left,
+ FX_FLOAT& top,
+ FX_FLOAT& right,
+ FX_FLOAT& bottom) const override;
+ FX_BOOL GetBaselineRotate(int rectIndex, int& Rotate) override;
+ FX_BOOL GetBaselineRotate(const CFX_FloatRect& rect, int& Rotate) override;
+ int CountBoundedSegments(FX_FLOAT left,
+ FX_FLOAT top,
+ FX_FLOAT right,
+ FX_FLOAT bottom,
+ FX_BOOL bContains = FALSE) override;
+ void GetBoundedSegment(int index, int& start, int& count) const override;
+ int GetWordBreak(int index, int direction) const override;
+
+ 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);
+ bool IsControlChar(const PAGECHAR_INFO& charInfo);
+ FX_BOOL GetBaselineRotate(int start, int end, int& Rotate);
+ void ProcessObject();
+ void ProcessFormObject(CPDF_FormObject* pFormObj,
+ const CFX_Matrix& formMatrix);
+ void ProcessTextObject(PDFTEXT_Obj pObj);
+ void ProcessTextObject(CPDF_TextObject* pTextObj,
+ const CFX_Matrix& formMatrix,
+ const CPDF_PageObjectList* pObjList,
+ CPDF_PageObjectList::const_iterator ObjPos);
+ int ProcessInsertObject(const CPDF_TextObject* pObj,
+ const CFX_Matrix& formMatrix);
+ FX_BOOL GenerateCharInfo(FX_WCHAR unicode, PAGECHAR_INFO& info);
+ FX_BOOL IsSameAsPreTextObject(CPDF_TextObject* pTextObj,
+ const CPDF_PageObjectList* pObjList,
+ CPDF_PageObjectList::const_iterator ObjPos);
+ FX_BOOL IsSameTextObject(CPDF_TextObject* pTextObj1,
+ CPDF_TextObject* pTextObj2);
+ int GetCharWidth(FX_DWORD charCode, CPDF_Font* pFont) const;
+ void CloseTempLine();
+ void OnPiece(CFX_BidiChar* pBidi, CFX_WideString& str);
+ int32_t PreMarkedContent(PDFTEXT_Obj pObj);
+ void ProcessMarkedContent(PDFTEXT_Obj pObj);
+ void CheckMarkedContentObject(int32_t& start, int32_t& nCount) const;
+ void FindPreviousTextObject(void);
+ void AddCharInfoByLRDirection(FX_WCHAR wChar, PAGECHAR_INFO info);
+ void AddCharInfoByRLDirection(FX_WCHAR wChar, PAGECHAR_INFO info);
+ int32_t GetTextObjectWritingMode(const CPDF_TextObject* pTextObj);
+ int32_t FindTextlineFlowDirection();
+
+ void SwapTempTextBuf(int32_t iCharListStartAppend, int32_t iBufStartAppend);
+ FX_BOOL IsRightToLeft(const CPDF_TextObject* pTextObj,
+ const CPDF_Font* pFont,
+ int nItems) const;
+
+ const CPDF_Page* const m_pPage;
+ std::vector<FX_WORD> m_CharIndex;
+ std::deque<PAGECHAR_INFO> m_CharList;
+ std::deque<PAGECHAR_INFO> m_TempCharList;
+ CFX_WideTextBuf m_TextBuf;
+ CFX_WideTextBuf m_TempTextBuf;
+ const int m_parserflag;
+ CPDF_TextObject* m_pPreTextObj;
+ CFX_Matrix m_perMatrix;
+ bool m_bIsParsed;
+ CFX_Matrix m_DisplayMatrix;
+ CFX_ArrayTemplate<FPDF_SEGMENT> m_Segments;
+ CFX_RectArray m_SelRects;
+ CFX_ArrayTemplate<PDFTEXT_Obj> m_LineObj;
+ int32_t m_TextlineDir;
+ CFX_FloatRect m_CurlineRect;
+};
+
+class CPDF_TextPageFind : public IPDF_TextPageFind {
+ public:
+ explicit CPDF_TextPageFind(const IPDF_TextPage* pTextPage);
+ ~CPDF_TextPageFind() override {}
+
+ // IPDF_TextPageFind
+ FX_BOOL FindFirst(const CFX_WideString& findwhat,
+ int flags,
+ int startPos = 0) override;
+ FX_BOOL FindNext() override;
+ FX_BOOL FindPrev() override;
+ void GetRectArray(CFX_RectArray& rects) const override;
+ int GetCurOrder() const override;
+ int GetMatchedCount() const override;
+
+ protected:
+ void ExtractFindWhat(const CFX_WideString& findwhat);
+ FX_BOOL IsMatchWholeWord(const CFX_WideString& csPageText,
+ int startPos,
+ int endPos);
+ FX_BOOL ExtractSubString(CFX_WideString& rString,
+ const FX_WCHAR* 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:
+ std::vector<FX_WORD> m_CharIndex;
+ const IPDF_TextPage* m_pTextPage;
+ CFX_WideString m_strText;
+ CFX_WideString m_findWhat;
+ int m_flags;
+ std::vector<CFX_WideString> 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:
+ 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();
+ ~CPDF_LinkExtract() override;
+
+ // IPDF_LinkExtract
+ FX_BOOL ExtractLinks(const IPDF_TextPage* pTextPage) override;
+ int CountLinks() const override;
+ CFX_WideString GetURL(int index) const override;
+ void GetBoundedSegment(int index, int& start, int& count) const override;
+ void GetRects(int index, CFX_RectArray& rects) const override;
+
+ FX_BOOL IsExtract() const { return m_bIsParsed; }
+
+ protected:
+ void ParseLink();
+ void DeleteLinkList();
+ FX_BOOL CheckWebLink(CFX_WideString& strBeCheck);
+ bool CheckMailLink(CFX_WideString& str);
+ void AppendToLinkList(int start, int count, const CFX_WideString& strUrl);
+
+ private:
+ LINK_InfoArray m_LinkList;
+ const CPDF_TextPage* m_pTextPage;
+ CFX_WideString m_strPageText;
+ bool m_bIsParsed;
+};
+
+FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_WCHAR* pDst);
+
+#endif // CORE_FPDFTEXT_TEXT_INT_H_