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 XFA_FDE_CFDE_TEXTOUT_H_ 8 #define XFA_FDE_CFDE_TEXTOUT_H_ 9 10 #include <deque> 11 #include <memory> 12 #include <vector> 13 14 #include "core/fxcrt/cfx_char.h" 15 #include "core/fxge/cfx_defaultrenderdevice.h" 16 #include "core/fxge/cfx_renderdevice.h" 17 #include "core/fxge/fx_dib.h" 18 #include "xfa/fde/cfde_data.h" 19 20 class CFDE_RenderDevice; 21 class CFGAS_GEFont; 22 class CFX_RenderDevice; 23 class CFX_TxtBreak; 24 25 class CFDE_TextOut { 26 public: 27 static bool DrawString(CFX_RenderDevice* device, 28 FX_ARGB color, 29 const RetainPtr<CFGAS_GEFont>& pFont, 30 FXTEXT_CHARPOS* pCharPos, 31 int32_t iCount, 32 float fFontSize, 33 const CFX_Matrix* pMatrix); 34 35 CFDE_TextOut(); 36 ~CFDE_TextOut(); 37 38 void SetFont(const RetainPtr<CFGAS_GEFont>& pFont); 39 void SetFontSize(float fFontSize); 40 void SetTextColor(FX_ARGB color) { m_TxtColor = color; } 41 void SetStyles(const FDE_TextStyle& dwStyles); 42 void SetAlignment(FDE_TextAlignment iAlignment); 43 void SetLineSpace(float fLineSpace); 44 void SetMatrix(const CFX_Matrix& matrix) { m_Matrix = matrix; } 45 void SetLineBreakTolerance(float fTolerance); 46 47 void CalcLogicSize(const WideString& str, CFX_SizeF& size); 48 void CalcLogicSize(const WideString& str, CFX_RectF& rect); 49 void DrawLogicText(CFX_RenderDevice* device, 50 const WideStringView& str, 51 const CFX_RectF& rect); 52 int32_t GetTotalLines() const { return m_iTotalLines; } 53 54 private: 55 class CFDE_TTOLine { 56 public: 57 CFDE_TTOLine(); 58 CFDE_TTOLine(const CFDE_TTOLine& ttoLine); 59 ~CFDE_TTOLine(); 60 61 bool GetNewReload() const { return m_bNewReload; } 62 void SetNewReload(bool reload) { m_bNewReload = reload; } 63 int32_t AddPiece(int32_t index, const FDE_TTOPIECE& ttoPiece); 64 int32_t GetSize() const; 65 FDE_TTOPIECE* GetPtrAt(int32_t index); 66 void RemoveLast(int32_t iCount); 67 68 private: 69 bool m_bNewReload; 70 std::deque<FDE_TTOPIECE> m_pieces; 71 }; 72 73 bool RetrieveLineWidth(CFX_BreakType dwBreakStatus, 74 float& fStartPos, 75 float& fWidth, 76 float& fHeight); 77 void LoadText(const WideString& str, const CFX_RectF& rect); 78 79 void Reload(const CFX_RectF& rect); 80 void ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect); 81 bool RetrievePieces(CFX_BreakType dwBreakStatus, 82 int32_t& iStartChar, 83 int32_t& iPieceWidths, 84 bool bReload, 85 const CFX_RectF& rect); 86 void AppendPiece(const FDE_TTOPIECE& ttoPiece, bool bNeedReload, bool bEnd); 87 void DoAlignment(const CFX_RectF& rect); 88 int32_t GetDisplayPos(FDE_TTOPIECE* pPiece); 89 90 std::unique_ptr<CFX_TxtBreak> m_pTxtBreak; 91 RetainPtr<CFGAS_GEFont> m_pFont; 92 float m_fFontSize; 93 float m_fLineSpace; 94 float m_fLinePos; 95 float m_fTolerance; 96 FDE_TextAlignment m_iAlignment; 97 FDE_TextStyle m_Styles; 98 std::vector<int32_t> m_CharWidths; 99 FX_ARGB m_TxtColor; 100 uint32_t m_dwTxtBkStyles; 101 WideString m_wsText; 102 CFX_Matrix m_Matrix; 103 std::deque<CFDE_TTOLine> m_ttoLines; 104 int32_t m_iCurLine; 105 int32_t m_iCurPiece; 106 int32_t m_iTotalLines; 107 std::vector<FXTEXT_CHARPOS> m_CharPos; 108 }; 109 110 #endif // XFA_FDE_CFDE_TEXTOUT_H_ 111
