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_TTO_FDE_TEXTOUT_H_ 8 #define XFA_FDE_TTO_FDE_TEXTOUT_H_ 9 10 #include <deque> 11 #include <memory> 12 #include <vector> 13 14 #include "core/fxge/cfx_fxgedevice.h" 15 #include "core/fxge/cfx_renderdevice.h" 16 #include "core/fxge/fx_dib.h" 17 #include "xfa/fde/fde_object.h" 18 #include "xfa/fgas/crt/fgas_utils.h" 19 #include "xfa/fgas/font/cfgas_fontmgr.h" 20 21 #define FDE_TTOSTYLE_Underline 0x0001 22 #define FDE_TTOSTYLE_Strikeout 0x0002 23 #define FDE_TTOSTYLE_VerticalLayout 0x0004 24 #define FDE_TTOSTYLE_SingleLine 0x0010 25 #define FDE_TTOSTYLE_ExpandTab 0x0020 26 #define FDE_TTOSTYLE_HotKey 0x0040 27 #define FDE_TTOSTYLE_Ellipsis 0x0080 28 #define FDE_TTOSTYLE_LineWrap 0x0100 29 #define FDE_TTOSTYLE_ArabicShapes 0x0200 30 #define FDE_TTOSTYLE_ArabicContext 0x0800 31 #define FDE_TTOSTYLE_LastLineHeight 0x1000 32 #define FDE_TTOALIGNMENT_TopLeft 0 33 #define FDE_TTOALIGNMENT_TopCenter 1 34 #define FDE_TTOALIGNMENT_TopRight 2 35 #define FDE_TTOALIGNMENT_TopAuto 3 36 #define FDE_TTOALIGNMENT_CenterLeft 4 37 #define FDE_TTOALIGNMENT_Center 5 38 #define FDE_TTOALIGNMENT_CenterRight 6 39 #define FDE_TTOALIGNMENT_CenterAuto 7 40 #define FDE_TTOALIGNMENT_BottomLeft 8 41 #define FDE_TTOALIGNMENT_BottomCenter 9 42 #define FDE_TTOALIGNMENT_BottomRight 10 43 #define FDE_TTOALIGNMENT_BottomAuto 11 44 45 class CFDE_RenderDevice; 46 class CFX_RenderDevice; 47 class CFX_TxtBreak; 48 struct FX_TXTRUN; 49 50 struct FDE_TTOPIECE { 51 FDE_TTOPIECE(); 52 FDE_TTOPIECE(const FDE_TTOPIECE& that); 53 ~FDE_TTOPIECE(); 54 55 int32_t iStartChar; 56 int32_t iChars; 57 uint32_t dwCharStyles; 58 CFX_RectF rtPiece; 59 }; 60 61 class CFDE_TTOLine { 62 public: 63 CFDE_TTOLine(); 64 CFDE_TTOLine(const CFDE_TTOLine& ttoLine); 65 ~CFDE_TTOLine(); 66 GetNewReload()67 bool GetNewReload() const { return m_bNewReload; } SetNewReload(bool reload)68 void SetNewReload(bool reload) { m_bNewReload = reload; } 69 int32_t AddPiece(int32_t index, const FDE_TTOPIECE& ttoPiece); 70 int32_t GetSize() const; 71 FDE_TTOPIECE* GetPtrAt(int32_t index); 72 void RemoveLast(int32_t iCount); 73 void RemoveAll(); 74 75 private: 76 bool m_bNewReload; 77 std::deque<FDE_TTOPIECE> m_pieces; 78 }; 79 80 class CFDE_TextOut { 81 public: 82 CFDE_TextOut(); 83 ~CFDE_TextOut(); 84 85 void SetFont(const CFX_RetainPtr<CFGAS_GEFont>& pFont); 86 void SetFontSize(FX_FLOAT fFontSize); 87 void SetTextColor(FX_ARGB color); 88 void SetStyles(uint32_t dwStyles); 89 void SetTabWidth(FX_FLOAT fTabWidth); 90 void SetEllipsisString(const CFX_WideString& wsEllipsis); 91 void SetParagraphBreakChar(FX_WCHAR wch); 92 void SetAlignment(int32_t iAlignment); 93 void SetLineSpace(FX_FLOAT fLineSpace); 94 void SetDIBitmap(CFX_DIBitmap* pDIB); 95 void SetRenderDevice(CFX_RenderDevice* pDevice); 96 void SetClipRect(const CFX_Rect& rtClip); 97 void SetClipRect(const CFX_RectF& rtClip); 98 void SetMatrix(const CFX_Matrix& matrix); 99 void SetLineBreakTolerance(FX_FLOAT fTolerance); 100 101 void DrawText(const FX_WCHAR* pwsStr, int32_t iLength, int32_t x, int32_t y); 102 void DrawText(const FX_WCHAR* pwsStr, 103 int32_t iLength, 104 FX_FLOAT x, 105 FX_FLOAT y); 106 void DrawText(const FX_WCHAR* pwsStr, int32_t iLength, const CFX_Rect& rect); 107 void DrawText(const FX_WCHAR* pwsStr, int32_t iLength, const CFX_RectF& rect); 108 109 void SetLogicClipRect(const CFX_RectF& rtClip); 110 void CalcLogicSize(const FX_WCHAR* pwsStr, int32_t iLength, CFX_SizeF& size); 111 void CalcLogicSize(const FX_WCHAR* pwsStr, int32_t iLength, CFX_RectF& rect); 112 void DrawLogicText(const FX_WCHAR* pwsStr, 113 int32_t iLength, 114 FX_FLOAT x, 115 FX_FLOAT y); 116 void DrawLogicText(const FX_WCHAR* pwsStr, 117 int32_t iLength, 118 const CFX_RectF& rect); 119 int32_t GetTotalLines(); 120 121 protected: 122 void CalcTextSize(const FX_WCHAR* pwsStr, int32_t iLength, CFX_RectF& rect); 123 bool RetrieveLineWidth(uint32_t dwBreakStatus, 124 FX_FLOAT& fStartPos, 125 FX_FLOAT& fWidth, 126 FX_FLOAT& fHeight); 127 void SetLineWidth(CFX_RectF& rect); 128 void DrawText(const FX_WCHAR* pwsStr, 129 int32_t iLength, 130 const CFX_RectF& rect, 131 const CFX_RectF& rtClip); 132 void LoadText(const FX_WCHAR* pwsStr, int32_t iLength, const CFX_RectF& rect); 133 void LoadEllipsis(); 134 void ExpandBuffer(int32_t iSize, int32_t iType); 135 void RetrieveEllPieces(std::vector<int32_t>* pCharWidths); 136 137 void Reload(const CFX_RectF& rect); 138 void ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect); 139 bool RetriecePieces(uint32_t dwBreakStatus, 140 int32_t& iStartChar, 141 int32_t& iPieceWidths, 142 bool bReload, 143 const CFX_RectF& rect); 144 void AppendPiece(const FDE_TTOPIECE& ttoPiece, bool bNeedReload, bool bEnd); 145 void ReplaceWidthEllipsis(); 146 void DoAlignment(const CFX_RectF& rect); 147 void OnDraw(const CFX_RectF& rtClip); 148 int32_t GetDisplayPos(FDE_TTOPIECE* pPiece); 149 int32_t GetCharRects(const FDE_TTOPIECE* pPiece); 150 151 FX_TXTRUN ToTextRun(const FDE_TTOPIECE* pPiece); 152 void DrawLine(const FDE_TTOPIECE* pPiece, CFDE_Pen* pPen); 153 154 std::unique_ptr<CFX_TxtBreak> m_pTxtBreak; 155 CFX_RetainPtr<CFGAS_GEFont> m_pFont; 156 FX_FLOAT m_fFontSize; 157 FX_FLOAT m_fLineSpace; 158 FX_FLOAT m_fLinePos; 159 FX_FLOAT m_fTolerance; 160 int32_t m_iAlignment; 161 int32_t m_iTxtBkAlignment; 162 std::vector<int32_t> m_CharWidths; 163 std::vector<int32_t> m_EllCharWidths; 164 FX_WCHAR m_wParagraphBkChar; 165 FX_ARGB m_TxtColor; 166 uint32_t m_dwStyles; 167 uint32_t m_dwTxtBkStyles; 168 CFX_WideString m_wsEllipsis; 169 bool m_bElliChanged; 170 int32_t m_iEllipsisWidth; 171 CFX_WideString m_wsText; 172 CFX_RectF m_rtClip; 173 CFX_RectF m_rtLogicClip; 174 CFX_Matrix m_Matrix; 175 std::deque<CFDE_TTOLine> m_ttoLines; 176 int32_t m_iCurLine; 177 int32_t m_iCurPiece; 178 int32_t m_iTotalLines; 179 std::vector<FXTEXT_CHARPOS> m_CharPos; 180 std::unique_ptr<CFDE_RenderDevice> m_pRenderDevice; 181 CFX_ArrayTemplate<int32_t> m_hotKeys; 182 std::vector<CFX_RectF> m_rectArray; 183 }; 184 185 #endif // XFA_FDE_TTO_FDE_TEXTOUT_H_ 186