Move core/fpdftext/include to core/fpdftext

BUG=pdfium:611

Review-Url: https://codereview.chromium.org/2383563002

1 files changed, 181 insertions, 0 deletions

diff --git a/core/fpdftext/cpdf_textpage.h b/core/fpdftext/cpdf_textpage.h
new file mode 100644
index 0000000000..46fcafa6c0
--- /dev/null
+++ b/core/fpdftext/cpdf_textpage.h
@@ -0,0 +1,181 @@
+// 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_CPDF_TEXTPAGE_H_
+#define CORE_FPDFTEXT_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 CPDF_Font;
+class CPDF_FormObject;
+class CPDF_Page;
+class CPDF_TextObject;
+
+#define FPDFTEXT_MATCHCASE 0x00000001
+#define FPDFTEXT_MATCHWHOLEWORD 0x00000002
+#define FPDFTEXT_CONSECUTIVE 0x00000004
+
+#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 TEXT_SPACE_CHAR L' '
+#define TEXT_LINEFEED_CHAR L'\n'
+#define TEXT_RETURN_CHAR L'\r'
+#define TEXT_EMPTY L""
+#define TEXT_SPACE L" "
+#define TEXT_RETURN_LINEFEED L"\r\n"
+#define TEXT_LINEFEED L"\n"
+#define TEXT_CHARRATIO_GAPDELTA 0.070
+
+enum class FPDFText_MarkedContent { Pass = 0, Done, Delay };
+
+enum class FPDFText_Direction { Left = -1, Right = 1 };
+
+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, FPDFText_Direction 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;
+  std::vector<CFX_FloatRect> GetRectArray(int start, int nCount) 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;
+  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;
+
+  static FX_BOOL IsRectIntersect(const CFX_FloatRect& rect1,
+                                 const CFX_FloatRect& rect2);
+
+ private:
+  enum class TextOrientation {
+    Unknown,
+    Horizontal,
+    Vertical,
+  };
+
+  enum class GenerateCharacter {
+    None,
+    Space,
+    LineBreak,
+    Hyphen,
+  };
+
+  FX_BOOL IsHyphen(FX_WCHAR curChar);
+  bool IsControlChar(const PAGECHAR_INFO& charInfo);
+  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);
+  GenerateCharacter 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();
+  FPDFText_MarkedContent PreMarkedContent(PDFTEXT_Obj pObj);
+  void ProcessMarkedContent(PDFTEXT_Obj pObj);
+  void CheckMarkedContentObject(int32_t& start, int32_t& nCount) const;
+  void FindPreviousTextObject();
+  void AddCharInfoByLRDirection(FX_WCHAR wChar, PAGECHAR_INFO info);
+  void AddCharInfoByRLDirection(FX_WCHAR wChar, PAGECHAR_INFO info);
+  TextOrientation GetTextObjectWritingMode(
+      const CPDF_TextObject* pTextObj) const;
+  TextOrientation FindTextlineFlowOrientation() const;
+  void AppendGeneratedCharacter(FX_WCHAR unicode, const CFX_Matrix& formMatrix);
+
+  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 FPDFText_Direction m_parserflag;
+  CPDF_TextObject* m_pPreTextObj;
+  CFX_Matrix m_perMatrix;
+  bool m_bIsParsed;
+  CFX_Matrix m_DisplayMatrix;
+  CFX_ArrayTemplate<FPDF_SEGMENT> m_Segments;
+  std::vector<CFX_FloatRect> m_SelRects;
+  CFX_ArrayTemplate<PDFTEXT_Obj> m_LineObj;
+  TextOrientation m_TextlineDir;
+  CFX_FloatRect m_CurlineRect;
+};
+
+#endif  // CORE_FPDFTEXT_CPDF_TEXTPAGE_H_