| // 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_FGAS_LAYOUT_FGAS_RTFBREAK_H_ |
| #define XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_ |
| |
| #include "core/include/fxcrt/fx_ucd.h" |
| #include "core/include/fxge/fx_ge.h" |
| #include "xfa/fgas/crt/fgas_memory.h" |
| #include "xfa/fgas/crt/fgas_utils.h" |
| #include "xfa/fgas/layout/fgas_textbreak.h" |
| #include "xfa/fgas/layout/fgas_unicode.h" |
| |
| class IFX_Unknown; |
| class IFX_Font; |
| |
| #define FX_RTFBREAKPOLICY_None 0x00 |
| #define FX_RTFBREAKPOLICY_SpaceBreak 0x01 |
| #define FX_RTFBREAKPOLICY_NumberBreak 0x02 |
| #define FX_RTFBREAKPOLICY_InfixBreak 0x04 |
| #define FX_RTFBREAKPOLICY_TabBreak 0x08 |
| #define FX_RTFBREAKPOLICY_OrphanPositionedTab 0x10 |
| #define FX_RTFBREAK_None 0x00 |
| #define FX_RTFBREAK_PieceBreak 0x01 |
| #define FX_RTFBREAK_LineBreak 0x02 |
| #define FX_RTFBREAK_ParagraphBreak 0x03 |
| #define FX_RTFBREAK_PageBreak 0x04 |
| #define FX_RTFLAYOUTSTYLE_Pagination 0x01 |
| #define FX_RTFLAYOUTSTYLE_VerticalLayout 0x02 |
| #define FX_RTFLAYOUTSTYLE_VerticalChars 0x04 |
| #define FX_RTFLAYOUTSTYLE_LineDirection 0x08 |
| #define FX_RTFLAYOUTSTYLE_ExpandTab 0x10 |
| #define FX_RTFLAYOUTSTYLE_ArabicNumber 0x20 |
| #define FX_RTFLAYOUTSTYLE_SingleLine 0x40 |
| #define FX_RTFLAYOUTSTYLE_MBCSCode 0x80 |
| #define FX_RTFCHARSTYLE_Alignment 0x000F |
| #define FX_RTFCHARSTYLE_ArabicNumber 0x0010 |
| #define FX_RTFCHARSTYLE_ArabicShadda 0x0020 |
| #define FX_RTFCHARSTYLE_OddBidiLevel 0x0040 |
| #define FX_RTFCHARSTYLE_RTLReadingOrder 0x0080 |
| #define FX_RTFCHARSTYLE_ArabicContext 0x0300 |
| #define FX_RTFCHARSTYLE_ArabicIndic 0x0400 |
| #define FX_RTFCHARSTYLE_ArabicComma 0x0800 |
| #define FX_RTFLINEALIGNMENT_Left 0 |
| #define FX_RTFLINEALIGNMENT_Center 1 |
| #define FX_RTFLINEALIGNMENT_Right 2 |
| #define FX_RTFLINEALIGNMENT_Justified (1 << 2) |
| #define FX_RTFLINEALIGNMENT_Distributed (2 << 2) |
| #define FX_RTFLINEALIGNMENT_JustifiedLeft \ |
| (FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Justified) |
| #define FX_RTFLINEALIGNMENT_JustifiedCenter \ |
| (FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Justified) |
| #define FX_RTFLINEALIGNMENT_JustifiedRight \ |
| (FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Justified) |
| #define FX_RTFLINEALIGNMENT_DistributedLeft \ |
| (FX_RTFLINEALIGNMENT_Left | FX_RTFLINEALIGNMENT_Distributed) |
| #define FX_RTFLINEALIGNMENT_DistributedCenter \ |
| (FX_RTFLINEALIGNMENT_Center | FX_RTFLINEALIGNMENT_Distributed) |
| #define FX_RTFLINEALIGNMENT_DistributedRight \ |
| (FX_RTFLINEALIGNMENT_Right | FX_RTFLINEALIGNMENT_Distributed) |
| #define FX_RTFLINEALIGNMENT_LowerMask 0x03 |
| #define FX_RTFLINEALIGNMENT_HigherMask 0x0C |
| |
| struct FX_RTFTEXTOBJ { |
| FX_RTFTEXTOBJ() { |
| pStr = NULL; |
| pWidths = NULL; |
| iLength = 0; |
| pFont = NULL; |
| fFontSize = 12.0f; |
| dwLayoutStyles = 0; |
| iCharRotation = 0; |
| iBidiLevel = 0; |
| pRect = NULL; |
| wLineBreakChar = L'\n'; |
| iHorizontalScale = 100; |
| iVerticalScale = 100; |
| } |
| |
| const FX_WCHAR* pStr; |
| int32_t* pWidths; |
| int32_t iLength; |
| IFX_Font* pFont; |
| FX_FLOAT fFontSize; |
| FX_DWORD dwLayoutStyles; |
| int32_t iCharRotation; |
| int32_t iBidiLevel; |
| const CFX_RectF* pRect; |
| FX_WCHAR wLineBreakChar; |
| int32_t iHorizontalScale; |
| int32_t iVerticalScale; |
| }; |
| |
| class CFX_RTFPiece : public CFX_Target { |
| public: |
| CFX_RTFPiece() |
| : m_dwStatus(FX_RTFBREAK_PieceBreak), |
| m_iStartPos(0), |
| m_iWidth(-1), |
| m_iStartChar(0), |
| m_iChars(0), |
| m_iBidiLevel(0), |
| m_iBidiPos(0), |
| m_iFontSize(0), |
| m_iFontHeight(0), |
| m_iHorizontalScale(100), |
| m_iVerticalScale(100), |
| m_dwLayoutStyles(0), |
| m_dwIdentity(0), |
| m_pChars(NULL), |
| m_pUserData(NULL) {} |
| ~CFX_RTFPiece() { Reset(); } |
| void AppendChar(const CFX_RTFChar& tc) { |
| FXSYS_assert(m_pChars != NULL); |
| m_pChars->Add(tc); |
| if (m_iWidth < 0) { |
| m_iWidth = tc.m_iCharWidth; |
| } else { |
| m_iWidth += tc.m_iCharWidth; |
| } |
| m_iChars++; |
| } |
| int32_t GetEndPos() const { |
| return m_iWidth < 0 ? m_iStartPos : m_iStartPos + m_iWidth; |
| } |
| int32_t GetLength() const { return m_iChars; } |
| int32_t GetEndChar() const { return m_iStartChar + m_iChars; } |
| CFX_RTFChar& GetChar(int32_t index) { |
| FXSYS_assert(index > -1 && index < m_iChars && m_pChars != NULL); |
| return *m_pChars->GetDataPtr(m_iStartChar + index); |
| } |
| CFX_RTFChar* GetCharPtr(int32_t index) const { |
| FXSYS_assert(index > -1 && index < m_iChars && m_pChars != NULL); |
| return m_pChars->GetDataPtr(m_iStartChar + index); |
| } |
| void GetString(FX_WCHAR* pText) const { |
| FXSYS_assert(pText != NULL); |
| int32_t iEndChar = m_iStartChar + m_iChars; |
| CFX_RTFChar* pChar; |
| for (int32_t i = m_iStartChar; i < iEndChar; i++) { |
| pChar = m_pChars->GetDataPtr(i); |
| *pText++ = (FX_WCHAR)pChar->m_wCharCode; |
| } |
| } |
| void GetString(CFX_WideString& wsText) const { |
| FX_WCHAR* pText = wsText.GetBuffer(m_iChars); |
| GetString(pText); |
| wsText.ReleaseBuffer(m_iChars); |
| } |
| void GetWidths(int32_t* pWidths) const { |
| FXSYS_assert(pWidths != NULL); |
| int32_t iEndChar = m_iStartChar + m_iChars; |
| CFX_RTFChar* pChar; |
| for (int32_t i = m_iStartChar; i < iEndChar; i++) { |
| pChar = m_pChars->GetDataPtr(i); |
| *pWidths++ = pChar->m_iCharWidth; |
| } |
| } |
| void Reset() { |
| m_dwStatus = FX_RTFBREAK_PieceBreak; |
| if (m_iWidth > -1) { |
| m_iStartPos += m_iWidth; |
| } |
| m_iWidth = -1; |
| m_iStartChar += m_iChars; |
| m_iChars = 0; |
| m_iBidiLevel = 0; |
| m_iBidiPos = 0; |
| m_iHorizontalScale = 100; |
| m_iVerticalScale = 100; |
| } |
| FX_DWORD m_dwStatus; |
| int32_t m_iStartPos; |
| int32_t m_iWidth; |
| int32_t m_iStartChar; |
| int32_t m_iChars; |
| int32_t m_iBidiLevel; |
| int32_t m_iBidiPos; |
| int32_t m_iFontSize; |
| int32_t m_iFontHeight; |
| int32_t m_iHorizontalScale; |
| int32_t m_iVerticalScale; |
| FX_DWORD m_dwLayoutStyles; |
| FX_DWORD m_dwIdentity; |
| CFX_RTFCharArray* m_pChars; |
| IFX_Unknown* m_pUserData; |
| }; |
| typedef CFX_BaseArrayTemplate<CFX_RTFPiece> CFX_RTFPieceArray; |
| |
| class IFX_RTFBreak { |
| public: |
| static IFX_RTFBreak* Create(FX_DWORD dwPolicies); |
| virtual ~IFX_RTFBreak() {} |
| virtual void Release() = 0; |
| virtual void SetLineBoundary(FX_FLOAT fLineStart, FX_FLOAT fLineEnd) = 0; |
| virtual void SetLineStartPos(FX_FLOAT fLinePos) = 0; |
| virtual FX_DWORD GetLayoutStyles() const = 0; |
| virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles) = 0; |
| virtual void SetFont(IFX_Font* pFont) = 0; |
| virtual void SetFontSize(FX_FLOAT fFontSize) = 0; |
| virtual void SetTabWidth(FX_FLOAT fTabWidth) = 0; |
| virtual void AddPositionedTab(FX_FLOAT fTabPos) = 0; |
| virtual void SetPositionedTabs(const CFX_FloatArray& tabs) = 0; |
| virtual void ClearPositionedTabs() = 0; |
| virtual void SetDefaultChar(FX_WCHAR wch) = 0; |
| virtual void SetLineBreakChar(FX_WCHAR wch) = 0; |
| virtual void SetLineBreakTolerance(FX_FLOAT fTolerance) = 0; |
| virtual void SetHorizontalScale(int32_t iScale) = 0; |
| virtual void SetVerticalScale(int32_t iScale) = 0; |
| virtual void SetCharRotation(int32_t iCharRotation) = 0; |
| virtual void SetCharSpace(FX_FLOAT fCharSpace) = 0; |
| virtual void SetWordSpace(FX_BOOL bDefault, FX_FLOAT fWordSpace) = 0; |
| virtual void SetReadingOrder(FX_BOOL bRTL = FALSE) = 0; |
| virtual void SetAlignment(int32_t iAlignment = FX_RTFLINEALIGNMENT_Left) = 0; |
| virtual void SetUserData(IFX_Unknown* pUserData) = 0; |
| virtual FX_DWORD AppendChar(FX_WCHAR wch) = 0; |
| virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_RTFBREAK_PieceBreak) = 0; |
| virtual int32_t CountBreakPieces() const = 0; |
| virtual const CFX_RTFPiece* GetBreakPiece(int32_t index) const = 0; |
| virtual void GetLineRect(CFX_RectF& rect) const = 0; |
| virtual void ClearBreakPieces() = 0; |
| virtual void Reset() = 0; |
| virtual int32_t GetDisplayPos( |
| const FX_RTFTEXTOBJ* pText, |
| FXTEXT_CHARPOS* pCharPos, |
| FX_BOOL bCharCode = FALSE, |
| CFX_WideString* pWSForms = NULL, |
| FX_AdjustCharDisplayPos pAdjustPos = NULL) const = 0; |
| virtual int32_t GetCharRects(const FX_RTFTEXTOBJ* pText, |
| CFX_RectFArray& rtArray, |
| FX_BOOL bCharBBox = FALSE) const = 0; |
| }; |
| |
| #endif // XFA_FGAS_LAYOUT_FGAS_RTFBREAK_H_ |