| // Copyright 2014 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 XFA_FDE_CFDE_TEXTOUT_H_ |
| #define XFA_FDE_CFDE_TEXTOUT_H_ |
| |
| #include <deque> |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxge/fx_dib.h" |
| #include "third_party/base/span.h" |
| #include "xfa/fde/cfde_data.h" |
| #include "xfa/fgas/layout/cfx_char.h" |
| |
| class CFDE_RenderDevice; |
| class CFGAS_GEFont; |
| class CFX_RenderDevice; |
| class CFX_TxtBreak; |
| class TextCharPos; |
| |
| struct FDE_TTOPIECE { |
| FDE_TTOPIECE(); |
| FDE_TTOPIECE(const FDE_TTOPIECE& that); |
| ~FDE_TTOPIECE(); |
| |
| int32_t iStartChar; |
| int32_t iChars; |
| uint32_t dwCharStyles; |
| CFX_RectF rtPiece; |
| }; |
| |
| class CFDE_TextOut { |
| public: |
| static bool DrawString(CFX_RenderDevice* device, |
| FX_ARGB color, |
| const RetainPtr<CFGAS_GEFont>& pFont, |
| pdfium::span<TextCharPos> pCharPos, |
| float fFontSize, |
| const CFX_Matrix& matrix); |
| |
| CFDE_TextOut(); |
| ~CFDE_TextOut(); |
| |
| void SetFont(const RetainPtr<CFGAS_GEFont>& pFont); |
| void SetFontSize(float fFontSize); |
| void SetTextColor(FX_ARGB color) { m_TxtColor = color; } |
| void SetStyles(const FDE_TextStyle& dwStyles); |
| void SetAlignment(FDE_TextAlignment iAlignment); |
| void SetLineSpace(float fLineSpace); |
| void SetMatrix(const CFX_Matrix& matrix) { m_Matrix = matrix; } |
| void SetLineBreakTolerance(float fTolerance); |
| |
| void CalcLogicSize(WideStringView str, CFX_SizeF* pSize); |
| void CalcLogicSize(WideStringView str, CFX_RectF* pRect); |
| void DrawLogicText(CFX_RenderDevice* device, |
| WideStringView str, |
| const CFX_RectF& rect); |
| int32_t GetTotalLines() const { return m_iTotalLines; } |
| |
| private: |
| class CFDE_TTOLine { |
| public: |
| CFDE_TTOLine(); |
| CFDE_TTOLine(const CFDE_TTOLine& ttoLine); |
| ~CFDE_TTOLine(); |
| |
| bool GetNewReload() const { return m_bNewReload; } |
| void SetNewReload(bool reload) { m_bNewReload = reload; } |
| int32_t AddPiece(int32_t index, const FDE_TTOPIECE& ttoPiece); |
| int32_t GetSize() const; |
| FDE_TTOPIECE* GetPtrAt(int32_t index); |
| void RemoveLast(int32_t iCount); |
| |
| private: |
| bool m_bNewReload; |
| std::deque<FDE_TTOPIECE> m_pieces; |
| }; |
| |
| bool RetrieveLineWidth(CFX_BreakType dwBreakStatus, |
| float* pStartPos, |
| float* pWidth, |
| float* pHeight); |
| void LoadText(const WideString& str, const CFX_RectF& rect); |
| |
| void Reload(const CFX_RectF& rect); |
| void ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect); |
| bool RetrievePieces(CFX_BreakType dwBreakStatus, |
| bool bReload, |
| const CFX_RectF& rect, |
| int32_t* pStartChar, |
| int32_t* pPieceWidths); |
| void AppendPiece(const FDE_TTOPIECE& ttoPiece, bool bNeedReload, bool bEnd); |
| void DoAlignment(const CFX_RectF& rect); |
| size_t GetDisplayPos(FDE_TTOPIECE* pPiece); |
| |
| std::unique_ptr<CFX_TxtBreak> const m_pTxtBreak; |
| RetainPtr<CFGAS_GEFont> m_pFont; |
| float m_fFontSize = 12.0f; |
| float m_fLineSpace = 12.0f; |
| float m_fLinePos = 0.0f; |
| float m_fTolerance = 0.0f; |
| FDE_TextAlignment m_iAlignment = FDE_TextAlignment::kTopLeft; |
| FDE_TextStyle m_Styles; |
| std::vector<int32_t> m_CharWidths; |
| FX_ARGB m_TxtColor = 0xFF000000; |
| uint32_t m_dwTxtBkStyles = 0; |
| WideString m_wsText; |
| CFX_Matrix m_Matrix; |
| std::deque<CFDE_TTOLine> m_ttoLines; |
| int32_t m_iCurLine = 0; |
| int32_t m_iCurPiece = 0; |
| int32_t m_iTotalLines = 0; |
| std::vector<TextCharPos> m_CharPos; |
| }; |
| |
| #endif // XFA_FDE_CFDE_TEXTOUT_H_ |