1 // Copyright 2017 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 XFA_FGAS_LAYOUT_CFX_BREAK_H_ 8 #define XFA_FGAS_LAYOUT_CFX_BREAK_H_ 9 10 #include <stdint.h> 11 12 #include "core/fxcrt/retain_ptr.h" 13 #include "xfa/fgas/layout/cfx_breakline.h" 14 15 class CFGAS_GEFont; 16 17 struct FX_TPO { 18 bool operator<(const FX_TPO& that) const { return pos < that.pos; } 19 20 int32_t index; 21 int32_t pos; 22 }; 23 24 enum FX_LAYOUTSTYLE { 25 FX_LAYOUTSTYLE_None = 0, 26 FX_LAYOUTSTYLE_Pagination = 0x01, 27 FX_LAYOUTSTYLE_ExpandTab = 0x10, 28 FX_LAYOUTSTYLE_SingleLine = 0x200, 29 FX_LAYOUTSTYLE_CombText = 0x400 30 }; 31 32 class CFX_Break { 33 public: 34 virtual ~CFX_Break(); 35 36 void Reset(); 37 38 void SetLayoutStyles(uint32_t dwLayoutStyles); 39 uint32_t GetLayoutStyles() const { return m_dwLayoutStyles; } 40 41 void SetFont(const RetainPtr<CFGAS_GEFont>& pFont); 42 void SetFontSize(float fFontSize); 43 void SetTabWidth(float fTabWidth); 44 int32_t GetTabWidth() const { return m_iTabWidth; } 45 46 void SetHorizontalScale(int32_t iScale); 47 void SetVerticalScale(int32_t iScale); 48 void SetLineBreakTolerance(float fTolerance); 49 void SetLineBoundary(float fLineStart, float fLineEnd); 50 51 void SetCharSpace(float fCharSpace); 52 void SetParagraphBreakChar(wchar_t wch); 53 void SetDefaultChar(wchar_t wch); 54 55 int32_t CountBreakPieces() const; 56 const CFX_BreakPiece* GetBreakPieceUnstable(int32_t index) const; 57 void ClearBreakPieces(); 58 59 CFX_Char* GetLastChar(int32_t index, bool bOmitChar, bool bRichText) const; 60 61 protected: 62 explicit CFX_Break(uint32_t dwLayoutStyles); 63 64 void SetBreakStatus(); 65 bool HasLine() const { return m_iReadyLineIndex >= 0; } 66 FX_CHARTYPE GetUnifiedCharType(FX_CHARTYPE dwType) const; 67 68 FX_CHARTYPE m_eCharType; 69 bool m_bSingleLine; 70 bool m_bCombText; 71 uint32_t m_dwIdentity; 72 uint32_t m_dwLayoutStyles; 73 int32_t m_iLineStart; 74 int32_t m_iLineWidth; 75 wchar_t m_wParagraphBreakChar; 76 int32_t m_iFontSize; 77 int32_t m_iTabWidth; 78 int32_t m_iHorizontalScale; 79 int32_t m_iVerticalScale; 80 int32_t m_iTolerance; 81 int32_t m_iCharSpace; 82 int32_t m_iDefChar; 83 wchar_t m_wDefChar; 84 RetainPtr<CFGAS_GEFont> m_pFont; 85 CFX_BreakLine m_Line[2]; 86 CFX_BreakLine* m_pCurLine; 87 int8_t m_iReadyLineIndex; 88 89 private: 90 void FontChanged(); 91 }; 92 93 #endif // XFA_FGAS_LAYOUT_CFX_BREAK_H_ 94
