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 _FDE_TXTEDTPAGE_H 8 #define _FDE_TXTEDTPAGE_H 9 class CFDE_TxtEdtEngine; 10 class IFX_CharIter; 11 class CFDE_TxtEdtPage; 12 class CFDE_TxtEdtLineExt; 13 class CFDE_TxtEdtTextSet; 14 class CFDE_TxtEdtParag; 15 enum FDE_TXTEDT_CHARTYPE { 16 FDE_TXTEDT_CHARTYPE_Unknown = 0, 17 FDE_TXTEDT_CHARTYPE_Tab, 18 FDE_TXTEDT_CHARTYPE_Space, 19 FDE_TXTEDT_CHARTYPE_Punctuation, 20 FDE_TXTEDT_CHARTYPE_LineBreak, 21 FDE_TXTEDT_CHARTYPE_Number, 22 FDE_TXTEDT_CHARTYPE_Char, 23 FDE_TXTEDT_CHARTYPE_CJK, 24 }; 25 inline FDE_TXTEDT_CHARTYPE FDE_GetEditSelCharType(FX_WCHAR wChar) { 26 if (wChar == 0x9) { 27 return FDE_TXTEDT_CHARTYPE_Tab; 28 } else if (wChar == 0x20 || wChar == 0xA0) { 29 return FDE_TXTEDT_CHARTYPE_Space; 30 } else if (wChar == 0x9 || wChar == 0x20 || wChar == 0xA0 || 31 (wChar >= L'!' && wChar <= L'/') || 32 (wChar >= L':' && wChar <= L'@') || 33 (wChar >= L'[' && wChar <= L'^') || 34 (wChar >= L'{' && wChar <= L'~') || wChar == 0x60) { 35 return FDE_TXTEDT_CHARTYPE_Punctuation; 36 } else if (wChar == 0x0a || wChar == 0x0d) { 37 return FDE_TXTEDT_CHARTYPE_LineBreak; 38 } else if (wChar >= '0' && wChar <= '9') { 39 return FDE_TXTEDT_CHARTYPE_Number; 40 } else if ((wChar >= 0x2e80 && wChar <= 0x2eff) || 41 (wChar >= 0x3000 && wChar <= 0x303f) || 42 (wChar >= 0x31c0 && wChar <= 0x31ef) || 43 (wChar >= 0x3200 && wChar <= 0x32ff) || 44 (wChar >= 0x3300 && wChar <= 0x33ff) || 45 (wChar >= 0x3400 && wChar <= 0x4dbf) || 46 (wChar >= 0x4e00 && wChar <= 0x9fff) || 47 (wChar >= 0xf900 && wChar <= 0xfaff) || 48 (wChar >= 0xfe30 && wChar <= 0xfe4f)) { 49 return FDE_TXTEDT_CHARTYPE_CJK; 50 } else { 51 return FDE_TXTEDT_CHARTYPE_Char; 52 } 53 } 54 typedef struct _FDE_TXTEDTPIECE { 55 int32_t nStart; 56 int32_t nCount; 57 int32_t nBidiLevel; 58 CFX_RectF rtPiece; 59 FX_DWORD dwCharStyles; 60 } FDE_TEXTEDITPIECE, *FDE_LPTEXTEDITPIECE; 61 typedef CFX_MassArrayTemplate<FDE_TEXTEDITPIECE> CFDE_TXTEDTPieceMassArray; 62 class CFDE_TxtEdtTextSet : public IFDE_TextSet { 63 public: 64 CFDE_TxtEdtTextSet(CFDE_TxtEdtPage* pPage); 65 ~CFDE_TxtEdtTextSet(); 66 67 virtual FDE_VISUALOBJTYPE GetType(); 68 virtual FX_BOOL GetBBox(FDE_HVISUALOBJ hVisualObj, CFX_RectF& bbox); 69 virtual FX_BOOL GetMatrix(FDE_HVISUALOBJ hVisualObj, CFX_Matrix& matrix); 70 virtual FX_BOOL GetRect(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt); 71 virtual FX_BOOL GetClip(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt); 72 virtual int32_t GetString(FDE_HVISUALOBJ hText, CFX_WideString& wsText); 73 virtual IFX_Font* GetFont(FDE_HVISUALOBJ hText); 74 virtual FX_FLOAT GetFontSize(FDE_HVISUALOBJ hText); 75 virtual FX_ARGB GetFontColor(FDE_HVISUALOBJ hText); 76 virtual int32_t GetDisplayPos(FDE_HVISUALOBJ hText, 77 FXTEXT_CHARPOS* pCharPos, 78 FX_BOOL bCharCode = FALSE, 79 CFX_WideString* pWSForms = NULL); 80 virtual int32_t GetCharRects(FDE_HVISUALOBJ hText, CFX_RectFArray& rtArray); 81 virtual int32_t GetCharRects_Impl(FDE_HVISUALOBJ hText, 82 CFX_RectFArray& rtArray, 83 FX_BOOL bBBox = FALSE); 84 85 private: 86 CFDE_TxtEdtPage* m_pPage; 87 }; 88 class CFDE_TxtEdtPage : public IFDE_TxtEdtPage { 89 public: 90 CFDE_TxtEdtPage(IFDE_TxtEdtEngine* pEngine, int32_t nLineIndex); 91 92 virtual void Release(); 93 virtual IFDE_TxtEdtEngine* GetEngine() const; 94 95 virtual FDE_VISUALOBJTYPE GetType(); 96 virtual FX_BOOL GetBBox(FDE_HVISUALOBJ hVisualObj, CFX_RectF& bbox); 97 virtual FX_BOOL GetMatrix(FDE_HVISUALOBJ hVisualObj, CFX_Matrix& matrix); 98 virtual FX_BOOL GetRect(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt); 99 virtual FX_BOOL GetClip(FDE_HVISUALOBJ hVisualObj, CFX_RectF& rt); 100 virtual int32_t GetCharRect(int32_t nIndex, 101 CFX_RectF& rect, 102 FX_BOOL bBBox = FALSE) const; 103 virtual int32_t GetCharIndex(const CFX_PointF& fPoint, FX_BOOL& bBefore); 104 virtual int32_t SelectWord(const CFX_PointF& fPoint, int32_t& nCount); 105 virtual int32_t GetCharStart() const; 106 virtual int32_t GetCharCount() const; 107 virtual void CalcRangeRectArray(int32_t nStart, 108 int32_t nCount, 109 CFX_RectFArray& RectFArr) const; 110 virtual int32_t GetDisplayPos(const CFX_RectF& rtClip, 111 FXTEXT_CHARPOS*& pCharPos, 112 FX_LPRECTF pBBox) const; 113 114 virtual FX_BOOL IsLoaded(FX_LPCRECTF pClipBox = NULL); 115 virtual int32_t LoadPage(FX_LPCRECTF pClipBox = NULL, 116 IFX_Pause* pPause = NULL); 117 virtual void UnloadPage(FX_LPCRECTF pClipBox = NULL); 118 119 virtual const CFX_RectF& GetContentsBox(); 120 virtual FX_POSITION GetFirstPosition(FDE_HVISUALOBJ hCanvas); 121 virtual FDE_HVISUALOBJ GetNext(FDE_HVISUALOBJ hCanvas, 122 FX_POSITION& pos, 123 IFDE_VisualSet*& pVisualSet); 124 virtual FDE_HVISUALOBJ GetParentCanvas(FDE_HVISUALOBJ hCanvas, 125 IFDE_VisualSet*& pVisualSet); 126 virtual FX_WCHAR GetChar(void* pIdentity, int32_t index) const; 127 virtual int32_t GetWidth(void* pIdentity, int32_t index) const; 128 129 protected: 130 virtual ~CFDE_TxtEdtPage(); 131 132 private: 133 void NormalizePt2Rect(CFX_PointF& ptF, 134 const CFX_RectF& rtF, 135 FX_FLOAT fTolerance) const; 136 IFX_CharIter* m_pIter; 137 CFDE_TxtEdtTextSet* m_pTextSet; 138 CFDE_TxtEdtEngine* m_pEditEngine; 139 CFDE_TXTEDTPieceMassArray m_PieceMassArr; 140 CFDE_TxtEdtParag* m_pBgnParag; 141 CFDE_TxtEdtParag* m_pEndParag; 142 143 int32_t m_nRefCount; 144 int32_t m_nPageStart; 145 int32_t m_nCharCount; 146 int32_t m_nPageIndex; 147 FX_BOOL m_bLoaded; 148 CFX_RectF m_rtPage; 149 CFX_RectF m_rtPageMargin; 150 CFX_RectF m_rtPageContents; 151 CFX_RectF m_rtPageCanvas; 152 int32_t* m_pCharWidth; 153 }; 154 #endif 155
