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Diffstat (limited to 'core/fpdftext/include/cpdf_textpage.h')
| -rw-r--r-- | core/fpdftext/include/cpdf_textpage.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/core/fpdftext/include/cpdf_textpage.h b/core/fpdftext/include/cpdf_textpage.h new file mode 100644 index 0000000000..19e8791b5a --- /dev/null +++ b/core/fpdftext/include/cpdf_textpage.h @@ -0,0 +1,157 @@ +// Copyright 2016 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_INCLUDE_CPDF_TEXTPAGE_H_ +#define CORE_FPDFTEXT_INCLUDE_CPDF_TEXTPAGE_H_ + +#include <deque> +#include <vector> + +#include "core/fpdfapi/fpdf_page/cpdf_pageobjectlist.h" +#include "core/fxcrt/include/fx_basic.h" +#include "core/fxcrt/include/fx_coordinates.h" +#include "core/fxcrt/include/fx_string.h" + +class CFX_BidiChar; +class CPDF_Font; +class CPDF_FormObject; +class CPDF_Page; +class CPDF_TextObject; + +struct FPDF_CHAR_INFO { + FX_WCHAR m_Unicode; + FX_WCHAR m_Charcode; + int32_t m_Flag; + FX_FLOAT m_FontSize; + FX_FLOAT m_OriginX; + FX_FLOAT m_OriginY; + CFX_FloatRect m_CharBox; + CPDF_TextObject* m_pTextObj; + CFX_Matrix m_Matrix; +}; + +struct FPDF_SEGMENT { + int m_Start; + int m_nCount; +}; + +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 PDFTEXT_Obj { + CPDF_TextObject* m_pTextObj; + CFX_Matrix m_formMatrix; +}; + +class CPDF_TextPage { + public: + CPDF_TextPage(const CPDF_Page* pPage, int flags); + ~CPDF_TextPage() {} + + // IPDF_TextPage: + void ParseTextPage(); + bool IsParsed() const { return m_bIsParsed; } + int CharIndexFromTextIndex(int TextIndex) const; + int TextIndexFromCharIndex(int CharIndex) const; + int CountChars() const; + void GetCharInfo(int index, FPDF_CHAR_INFO* info) const; + void GetRectArray(int start, int nCount, CFX_RectArray& rectArray) const; + int GetIndexAtPos(CFX_FloatPoint point, + FX_FLOAT xTolerance, + FX_FLOAT yTolerance) const; + int GetIndexAtPos(FX_FLOAT x, + FX_FLOAT y, + FX_FLOAT xTolerance, + FX_FLOAT yTolerance) const; + CFX_WideString GetTextByRect(const CFX_FloatRect& rect) const; + void GetRectsArrayByRect(const CFX_FloatRect& rect, + CFX_RectArray& resRectArray) const; + CFX_WideString GetPageText(int start = 0, int nCount = -1) const; + int CountRects(int start, int nCount); + void GetRect(int rectIndex, + FX_FLOAT& left, + FX_FLOAT& top, + FX_FLOAT& right, + FX_FLOAT& bottom) const; + FX_BOOL GetBaselineRotate(int rectIndex, int& Rotate); + FX_BOOL GetBaselineRotate(const CFX_FloatRect& rect, int& Rotate); + int CountBoundedSegments(FX_FLOAT left, + FX_FLOAT top, + FX_FLOAT right, + FX_FLOAT bottom, + FX_BOOL bContains = FALSE); + void GetBoundedSegment(int index, int& start, int& count) const; + int GetWordBreak(int index, int direction) const; + + 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(uint32_t 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<uint16_t> 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; +}; + +#endif // CORE_FPDFTEXT_INCLUDE_CPDF_TEXTPAGE_H_ |