diff options
Diffstat (limited to 'xfa/fgas/layout/fgas_textbreak.cpp')
| -rw-r--r-- | xfa/fgas/layout/fgas_textbreak.cpp | 1824 |
1 files changed, 1824 insertions, 0 deletions
diff --git a/xfa/fgas/layout/fgas_textbreak.cpp b/xfa/fgas/layout/fgas_textbreak.cpp new file mode 100644 index 0000000000..0cc41980cb --- /dev/null +++ b/xfa/fgas/layout/fgas_textbreak.cpp @@ -0,0 +1,1824 @@ +// 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 + +#include "xfa/fgas/layout/fgas_textbreak.h" + +#include <algorithm> + +#include "core/include/fxcrt/fx_arb.h" +#include "core/include/fxcrt/fx_memory.h" +#include "xfa/fgas/layout/fgas_linebreak.h" +#include "xfa/fgas/layout/fgas_unicode.h" + +namespace { + +class CFX_TxtLine { + public: + CFX_TxtLine(int32_t iBlockSize) + : m_iStart(0), m_iWidth(0), m_iArabicChars(0) { + m_pLineChars = new CFX_TxtCharArray; + m_pLinePieces = new CFX_TxtPieceArray(16); + } + ~CFX_TxtLine() { + RemoveAll(); + delete m_pLineChars; + delete m_pLinePieces; + } + int32_t CountChars() const { return m_pLineChars->GetSize(); } + CFX_TxtChar* GetCharPtr(int32_t index) const { + FXSYS_assert(index > -1 && index < m_pLineChars->GetSize()); + return m_pLineChars->GetDataPtr(index); + } + int32_t CountPieces() const { return m_pLinePieces->GetSize(); } + CFX_TxtPiece* GetPiecePtr(int32_t index) const { + FXSYS_assert(index > -1 && index < m_pLinePieces->GetSize()); + return m_pLinePieces->GetPtrAt(index); + } + void GetString(CFX_WideString& wsStr) const { + int32_t iCount = m_pLineChars->GetSize(); + FX_WCHAR* pBuf = wsStr.GetBuffer(iCount); + CFX_Char* pChar; + for (int32_t i = 0; i < iCount; i++) { + pChar = m_pLineChars->GetDataPtr(i); + *pBuf++ = (FX_WCHAR)pChar->m_wCharCode; + } + wsStr.ReleaseBuffer(iCount); + } + void RemoveAll(FX_BOOL bLeaveMemory = FALSE) { + m_pLineChars->RemoveAll(); + m_pLinePieces->RemoveAll(bLeaveMemory); + m_iWidth = 0; + m_iArabicChars = 0; + } + CFX_TxtCharArray* m_pLineChars; + CFX_TxtPieceArray* m_pLinePieces; + int32_t m_iStart; + int32_t m_iWidth; + int32_t m_iArabicChars; +}; + +class CFX_TxtBreak : public IFX_TxtBreak { + public: + CFX_TxtBreak(FX_DWORD dwPolicies); + ~CFX_TxtBreak(); + virtual void Release() { delete this; } + virtual void SetLineWidth(FX_FLOAT fLineWidth); + virtual void SetLinePos(FX_FLOAT fLinePos); + virtual FX_DWORD GetLayoutStyles() const { return m_dwLayoutStyles; } + virtual void SetLayoutStyles(FX_DWORD dwLayoutStyles); + virtual void SetFont(IFX_Font* pFont); + virtual void SetFontSize(FX_FLOAT fFontSize); + virtual void SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant); + virtual void SetDefaultChar(FX_WCHAR wch); + virtual void SetParagraphBreakChar(FX_WCHAR wch); + virtual void SetLineBreakTolerance(FX_FLOAT fTolerance); + virtual void SetHorizontalScale(int32_t iScale); + virtual void SetVerticalScale(int32_t iScale); + virtual void SetCharRotation(int32_t iCharRotation); + virtual void SetCharSpace(FX_FLOAT fCharSpace); + virtual void SetAlignment(int32_t iAlignment); + virtual FX_DWORD GetContextCharStyles() const; + virtual void SetContextCharStyles(FX_DWORD dwCharStyles); + virtual void SetCombWidth(FX_FLOAT fCombWidth); + virtual void SetUserData(void* pUserData); + virtual FX_DWORD AppendChar(FX_WCHAR wch); + virtual FX_DWORD EndBreak(FX_DWORD dwStatus = FX_TXTBREAK_PieceBreak); + virtual int32_t CountBreakChars() const; + virtual int32_t CountBreakPieces() const; + virtual const CFX_TxtPiece* GetBreakPiece(int32_t index) const; + virtual void ClearBreakPieces(); + virtual void Reset(); + virtual int32_t GetDisplayPos( + const FX_TXTRUN* pTxtRun, + FXTEXT_CHARPOS* pCharPos, + FX_BOOL bCharCode = FALSE, + CFX_WideString* pWSForms = NULL, + FX_AdjustCharDisplayPos pAdjustPos = NULL) const; + virtual int32_t GetCharRects(const FX_TXTRUN* pTxtRun, + CFX_RectFArray& rtArray, + FX_BOOL bCharBBox = FALSE) const; + void AppendChar_PageLoad(CFX_Char* pCurChar, FX_DWORD dwProps); + FX_DWORD AppendChar_Combination(CFX_Char* pCurChar, int32_t iRotation); + FX_DWORD AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation); + FX_DWORD AppendChar_Control(CFX_Char* pCurChar, int32_t iRotation); + FX_DWORD AppendChar_Arabic(CFX_Char* pCurChar, int32_t iRotation); + FX_DWORD AppendChar_Others(CFX_Char* pCurChar, int32_t iRotation); + + protected: + FX_DWORD m_dwPolicies; + FX_BOOL m_bPagination; + IFX_ArabicChar* m_pArabicChar; + int32_t m_iLineWidth; + FX_DWORD m_dwLayoutStyles; + FX_BOOL m_bVertical; + FX_BOOL m_bArabicContext; + FX_BOOL m_bArabicShapes; + FX_BOOL m_bRTL; + FX_BOOL m_bSingleLine; + FX_BOOL m_bCombText; + int32_t m_iArabicContext; + int32_t m_iCurArabicContext; + IFX_Font* m_pFont; + int32_t m_iFontSize; + FX_BOOL m_bEquidistant; + int32_t m_iTabWidth; + FX_WCHAR m_wDefChar; + FX_WCHAR m_wParagBreakChar; + int32_t m_iDefChar; + int32_t m_iLineRotation; + int32_t m_iCharRotation; + int32_t m_iRotation; + int32_t m_iAlignment; + FX_DWORD m_dwContextCharStyles; + int32_t m_iCombWidth; + void* m_pUserData; + FX_DWORD m_dwCharType; + FX_BOOL m_bCurRTL; + int32_t m_iCurAlignment; + FX_BOOL m_bArabicNumber; + FX_BOOL m_bArabicComma; + CFX_TxtLine* m_pTxtLine1; + CFX_TxtLine* m_pTxtLine2; + CFX_TxtLine* m_pCurLine; + int32_t m_iReady; + int32_t m_iTolerance; + int32_t m_iHorScale; + int32_t m_iVerScale; + int32_t m_iCharSpace; + void SetBreakStatus(); + int32_t GetLineRotation(FX_DWORD dwStyles) const; + CFX_TxtChar* GetLastChar(int32_t index, FX_BOOL bOmitChar = TRUE) const; + CFX_TxtLine* GetTxtLine(FX_BOOL bReady) const; + CFX_TxtPieceArray* GetTxtPieces(FX_BOOL bReady) const; + FX_DWORD GetUnifiedCharType(FX_DWORD dwType) const; + void ResetArabicContext(); + void ResetContextCharStyles(); + void EndBreak_UpdateArabicShapes(); + FX_BOOL EndBreak_SplitLine(CFX_TxtLine* pNextLine, + FX_BOOL bAllChars, + FX_DWORD dwStatus); + void EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus); + void EndBreak_Alignment(CFX_TPOArray& tpos, + FX_BOOL bAllChars, + FX_DWORD dwStatus); + int32_t GetBreakPos(CFX_TxtCharArray& ca, + int32_t& iEndPos, + FX_BOOL bAllChars = FALSE, + FX_BOOL bOnlyBrk = FALSE); + void SplitTextLine(CFX_TxtLine* pCurLine, + CFX_TxtLine* pNextLine, + FX_BOOL bAllChars = FALSE); +}; + +} // namespace + +extern const FX_LINEBREAKTYPE gs_FX_LineBreak_PairTable[64][32]; +IFX_TxtBreak* IFX_TxtBreak::Create(FX_DWORD dwPolicies) { + return new CFX_TxtBreak(dwPolicies); +} +CFX_TxtBreak::CFX_TxtBreak(FX_DWORD dwPolicies) + : m_dwPolicies(dwPolicies), + m_pArabicChar(NULL), + m_iLineWidth(2000000), + m_dwLayoutStyles(0), + m_bVertical(FALSE), + m_bArabicContext(FALSE), + m_bArabicShapes(FALSE), + m_bRTL(FALSE), + m_bSingleLine(FALSE), + m_bCombText(FALSE), + m_iArabicContext(1), + m_iCurArabicContext(1), + m_pFont(NULL), + m_iFontSize(240), + m_bEquidistant(TRUE), + m_iTabWidth(720000), + m_wDefChar(0xFEFF), + m_wParagBreakChar(L'\n'), + m_iDefChar(0), + m_iLineRotation(0), + m_iCharRotation(0), + m_iRotation(0), + m_iAlignment(FX_TXTLINEALIGNMENT_Left), + m_dwContextCharStyles(0), + m_iCombWidth(360000), + m_pUserData(NULL), + m_dwCharType(0), + m_bArabicNumber(FALSE), + m_bArabicComma(FALSE), + m_pCurLine(NULL), + m_iReady(0), + m_iTolerance(0), + m_iHorScale(100), + m_iVerScale(100), + m_iCharSpace(0) { + m_bPagination = (m_dwPolicies & FX_TXTBREAKPOLICY_Pagination) != 0; + m_pArabicChar = IFX_ArabicChar::Create(); + if (m_bPagination) { + m_pTxtLine1 = new CFX_TxtLine(sizeof(CFX_Char)); + m_pTxtLine2 = new CFX_TxtLine(sizeof(CFX_Char)); + } else { + m_pTxtLine1 = new CFX_TxtLine(sizeof(CFX_TxtChar)); + m_pTxtLine2 = new CFX_TxtLine(sizeof(CFX_TxtChar)); + } + m_pCurLine = m_pTxtLine1; + ResetArabicContext(); +} +CFX_TxtBreak::~CFX_TxtBreak() { + Reset(); + delete m_pTxtLine1; + delete m_pTxtLine2; + m_pArabicChar->Release(); +} +void CFX_TxtBreak::SetLineWidth(FX_FLOAT fLineWidth) { + m_iLineWidth = FXSYS_round(fLineWidth * 20000.0f); + FXSYS_assert(m_iLineWidth >= 20000); +} +void CFX_TxtBreak::SetLinePos(FX_FLOAT fLinePos) { + int32_t iLinePos = FXSYS_round(fLinePos * 20000.0f); + if (iLinePos < 0) { + iLinePos = 0; + } + if (iLinePos > m_iLineWidth) { + iLinePos = m_iLineWidth; + } + m_pCurLine->m_iStart = iLinePos; + m_pCurLine->m_iWidth += iLinePos; +} +void CFX_TxtBreak::SetLayoutStyles(FX_DWORD dwLayoutStyles) { + m_dwLayoutStyles = dwLayoutStyles; + m_bVertical = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0; + m_bArabicContext = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicContext) != 0; + m_bArabicShapes = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ArabicShapes) != 0; + m_bRTL = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_RTLReadingOrder) != 0; + m_bSingleLine = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_SingleLine) != 0; + m_bCombText = (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_CombText) != 0; + ResetArabicContext(); + m_iLineRotation = GetLineRotation(m_dwLayoutStyles); + m_iRotation = m_iLineRotation + m_iCharRotation; + m_iRotation %= 4; +} +void CFX_TxtBreak::SetFont(IFX_Font* pFont) { + if (pFont == NULL) { + return; + } + if (m_pFont == pFont) { + return; + } + SetBreakStatus(); + m_pFont = pFont; + m_iDefChar = 0; + if (m_wDefChar != 0xFEFF && m_pFont != NULL) { + m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE); + m_iDefChar *= m_iFontSize; + } +} +void CFX_TxtBreak::SetFontSize(FX_FLOAT fFontSize) { + int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); + if (m_iFontSize == iFontSize) { + return; + } + SetBreakStatus(); + m_iFontSize = iFontSize; + m_iDefChar = 0; + if (m_wDefChar != 0xFEFF && m_pFont != NULL) { + m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE); + m_iDefChar *= m_iFontSize; + } +} +void CFX_TxtBreak::SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant) { + m_iTabWidth = FXSYS_round(fTabWidth * 20000.0f); + if (m_iTabWidth < FX_TXTBREAK_MinimumTabWidth) { + m_iTabWidth = FX_TXTBREAK_MinimumTabWidth; + } + m_bEquidistant = bEquidistant; +} +void CFX_TxtBreak::SetDefaultChar(FX_WCHAR wch) { + m_wDefChar = wch; + m_iDefChar = 0; + if (m_wDefChar != 0xFEFF && m_pFont != NULL) { + m_pFont->GetCharWidth(m_wDefChar, m_iDefChar, FALSE); + if (m_iDefChar < 0) { + m_iDefChar = 0; + } else { + m_iDefChar *= m_iFontSize; + } + } +} +void CFX_TxtBreak::SetParagraphBreakChar(FX_WCHAR wch) { + if (wch != L'\r' && wch != L'\n') { + return; + } + m_wParagBreakChar = wch; +} +void CFX_TxtBreak::SetLineBreakTolerance(FX_FLOAT fTolerance) { + m_iTolerance = FXSYS_round(fTolerance * 20000.0f); +} +void CFX_TxtBreak::SetCharRotation(int32_t iCharRotation) { + if (iCharRotation < 0) { + iCharRotation += (-iCharRotation / 4 + 1) * 4; + } else if (iCharRotation > 3) { + iCharRotation -= (iCharRotation / 4) * 4; + } + if (m_iCharRotation == iCharRotation) { + return; + } + SetBreakStatus(); + m_iCharRotation = iCharRotation; + m_iRotation = m_iLineRotation + m_iCharRotation; + m_iRotation %= 4; +} +void CFX_TxtBreak::SetAlignment(int32_t iAlignment) { + FXSYS_assert(iAlignment >= FX_TXTLINEALIGNMENT_Left && + iAlignment <= FX_TXTLINEALIGNMENT_Distributed); + m_iAlignment = iAlignment; + ResetArabicContext(); +} +void CFX_TxtBreak::ResetContextCharStyles() { + m_dwContextCharStyles = m_bArabicContext ? m_iCurAlignment : m_iAlignment; + if (m_bArabicNumber) { + m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicNumber; + } + if (m_bArabicComma) { + m_dwContextCharStyles |= FX_TXTCHARSTYLE_ArabicComma; + } + if ((m_bArabicContext && m_bCurRTL) || (!m_bArabicContext && m_bRTL)) { + m_dwContextCharStyles |= FX_TXTCHARSTYLE_RTLReadingOrder; + } + m_dwContextCharStyles |= (m_iArabicContext << 8); +} +FX_DWORD CFX_TxtBreak::GetContextCharStyles() const { + return m_dwContextCharStyles; +} +void CFX_TxtBreak::SetContextCharStyles(FX_DWORD dwCharStyles) { + m_iCurAlignment = dwCharStyles & 0x0F; + m_bArabicNumber = (dwCharStyles & FX_TXTCHARSTYLE_ArabicNumber) != 0; + m_bArabicComma = (dwCharStyles & FX_TXTCHARSTYLE_ArabicComma) != 0; + m_bCurRTL = (dwCharStyles & FX_TXTCHARSTYLE_RTLReadingOrder) != 0; + m_iCurArabicContext = m_iArabicContext = ((dwCharStyles & 0x0300) >> 8); + ResetContextCharStyles(); +} +void CFX_TxtBreak::SetCombWidth(FX_FLOAT fCombWidth) { + m_iCombWidth = FXSYS_round(fCombWidth * 20000.0f); +} +void CFX_TxtBreak::SetUserData(void* pUserData) { + if (m_pUserData == pUserData) { + return; + } + SetBreakStatus(); + m_pUserData = pUserData; +} +void CFX_TxtBreak::SetBreakStatus() { + if (m_bPagination) { + return; + } + int32_t iCount = m_pCurLine->CountChars(); + if (iCount < 1) { + return; + } + CFX_TxtChar* pTC = (CFX_TxtChar*)m_pCurLine->GetCharPtr(iCount - 1); + if (pTC->m_dwStatus == 0) { + pTC->m_dwStatus = FX_TXTBREAK_PieceBreak; + } +} +void CFX_TxtBreak::SetHorizontalScale(int32_t iScale) { + if (iScale < 0) { + iScale = 0; + } + if (iScale == m_iHorScale) { + return; + } + SetBreakStatus(); + m_iHorScale = iScale; +} +void CFX_TxtBreak::SetVerticalScale(int32_t iScale) { + if (iScale < 0) { + iScale = 0; + } + if (iScale == m_iHorScale) { + return; + } + SetBreakStatus(); + m_iVerScale = iScale; +} +void CFX_TxtBreak::SetCharSpace(FX_FLOAT fCharSpace) { + m_iCharSpace = FXSYS_round(fCharSpace * 20000.0f); +} +static const int32_t gs_FX_TxtLineRotations[8] = {0, 3, 1, 0, 2, 1, 3, 2}; +int32_t CFX_TxtBreak::GetLineRotation(FX_DWORD dwStyles) const { + return gs_FX_TxtLineRotations[(dwStyles & 0x0E) >> 1]; +} +CFX_TxtChar* CFX_TxtBreak::GetLastChar(int32_t index, FX_BOOL bOmitChar) const { + CFX_TxtCharArray& ca = *m_pCurLine->m_pLineChars; + int32_t iCount = ca.GetSize(); + if (index < 0 || index >= iCount) { + return NULL; + } + CFX_TxtChar* pTC; + int32_t iStart = iCount - 1; + while (iStart > -1) { + pTC = ca.GetDataPtr(iStart--); + if (bOmitChar && pTC->GetCharType() == FX_CHARTYPE_Combination) { + continue; + } + if (--index < 0) { + return pTC; + } + } + return NULL; +} +CFX_TxtLine* CFX_TxtBreak::GetTxtLine(FX_BOOL bReady) const { + if (!bReady) { + return m_pCurLine; + } + if (m_iReady == 1) { + return m_pTxtLine1; + } else if (m_iReady == 2) { + return m_pTxtLine2; + } else { + return NULL; + } +} +CFX_TxtPieceArray* CFX_TxtBreak::GetTxtPieces(FX_BOOL bReady) const { + CFX_TxtLine* pTxtLine = GetTxtLine(bReady); + if (pTxtLine == NULL) { + return NULL; + } + return pTxtLine->m_pLinePieces; +} +inline FX_DWORD CFX_TxtBreak::GetUnifiedCharType(FX_DWORD dwType) const { + return dwType >= FX_CHARTYPE_ArabicAlef ? FX_CHARTYPE_Arabic : dwType; +} +void CFX_TxtBreak::ResetArabicContext() { + if (m_bArabicContext) { + m_bCurRTL = m_iCurArabicContext > 1; + m_iCurAlignment = m_iCurArabicContext > 1 ? FX_TXTLINEALIGNMENT_Right + : FX_TXTLINEALIGNMENT_Left; + m_iCurAlignment |= (m_iAlignment & FX_TXTLINEALIGNMENT_HigherMask); + m_bArabicNumber = m_iArabicContext >= 1 && m_bArabicShapes; + } else { + if (m_bPagination) { + m_bCurRTL = FALSE; + m_iCurAlignment = 0; + } else { + m_bCurRTL = m_bRTL; + m_iCurAlignment = m_iAlignment; + } + if (m_bRTL) { + m_bArabicNumber = m_iArabicContext >= 1; + } else { + m_bArabicNumber = m_iArabicContext > 1; + } + m_bArabicNumber = m_bArabicNumber && m_bArabicShapes; + } + m_bArabicComma = m_bArabicNumber; + ResetContextCharStyles(); +} +void CFX_TxtBreak::AppendChar_PageLoad(CFX_Char* pCurChar, FX_DWORD dwProps) { + if (!m_bPagination) { + ((CFX_TxtChar*)pCurChar)->m_dwStatus = 0; + ((CFX_TxtChar*)pCurChar)->m_pUserData = m_pUserData; + } + if (m_bArabicContext || m_bArabicShapes) { + int32_t iBidiCls = (dwProps & FX_BIDICLASSBITSMASK) >> FX_BIDICLASSBITS; + int32_t iArabicContext = + (iBidiCls == FX_BIDICLASS_R || iBidiCls == FX_BIDICLASS_AL) + ? 2 + : ((iBidiCls == FX_BIDICLASS_L || iBidiCls == FX_BIDICLASS_S) ? 0 + : 1); + if (iArabicContext != m_iArabicContext && iArabicContext != 1) { + m_iArabicContext = iArabicContext; + if (m_iCurArabicContext == 1) { + m_iCurArabicContext = iArabicContext; + } + ResetArabicContext(); + if (!m_bPagination) { + CFX_TxtChar* pLastChar = (CFX_TxtChar*)GetLastChar(1, FALSE); + if (pLastChar != NULL && pLastChar->m_dwStatus < 1) { + pLastChar->m_dwStatus = FX_TXTBREAK_PieceBreak; + } + } + } + } + pCurChar->m_dwCharStyles = m_dwContextCharStyles; +} +FX_DWORD CFX_TxtBreak::AppendChar_Combination(CFX_Char* pCurChar, + int32_t iRotation) { + FXSYS_assert(pCurChar != NULL); + FX_WCHAR wch = pCurChar->m_wCharCode; + FX_WCHAR wForm; + int32_t iCharWidth = 0; + CFX_Char* pLastChar; + pCurChar->m_iCharWidth = -1; + if (m_bCombText) { + iCharWidth = m_iCombWidth; + } else { + if (m_bVertical != FX_IsOdd(iRotation)) { + iCharWidth = 1000; + } else { + wForm = wch; + if (!m_bPagination) { + pLastChar = GetLastChar(0, FALSE); + if (pLastChar != NULL && + (((CFX_TxtChar*)pLastChar)->m_dwCharStyles & + FX_TXTCHARSTYLE_ArabicShadda) == 0) { + FX_BOOL bShadda = FALSE; + if (wch == 0x0651) { + FX_WCHAR wLast = pLastChar->m_wCharCode; + if (wLast >= 0x064C && wLast <= 0x0650) { + wForm = FX_GetArabicFromShaddaTable(wLast); + bShadda = TRUE; + } + } else if (wch >= 0x064C && wch <= 0x0650) { + if (pLastChar->m_wCharCode == 0x0651) { + wForm = FX_GetArabicFromShaddaTable(wch); + bShadda = TRUE; + } + } + if (bShadda) { + ((CFX_TxtChar*)pLastChar)->m_dwCharStyles |= + FX_TXTCHARSTYLE_ArabicShadda; + ((CFX_TxtChar*)pLastChar)->m_iCharWidth = 0; + ((CFX_TxtChar*)pCurChar)->m_dwCharStyles |= + FX_TXTCHARSTYLE_ArabicShadda; + } + } + } + if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) { + iCharWidth = 0; + } + } + iCharWidth *= m_iFontSize; + iCharWidth = iCharWidth * m_iHorScale / 100; + } + pCurChar->m_iCharWidth = -iCharWidth; + return FX_TXTBREAK_None; +} +FX_DWORD CFX_TxtBreak::AppendChar_Tab(CFX_Char* pCurChar, int32_t iRotation) { + m_dwCharType = FX_CHARTYPE_Tab; + if ((m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_ExpandTab) == 0) { + return FX_TXTBREAK_None; + } + int32_t& iLineWidth = m_pCurLine->m_iWidth; + int32_t iCharWidth; + if (m_bCombText) { + iCharWidth = m_iCombWidth; + } else { + if (m_bEquidistant) { + iCharWidth = iLineWidth; + iCharWidth = m_iTabWidth * (iCharWidth / m_iTabWidth + 1) - iCharWidth; + if (iCharWidth < FX_TXTBREAK_MinimumTabWidth) { + iCharWidth += m_iTabWidth; + } + } else { + iCharWidth = m_iTabWidth; + } + } + pCurChar->m_iCharWidth = iCharWidth; + iLineWidth += iCharWidth; + if (!m_bSingleLine && iLineWidth >= m_iLineWidth + m_iTolerance) { + return EndBreak(FX_TXTBREAK_LineBreak); + } + return FX_TXTBREAK_None; +} +FX_DWORD CFX_TxtBreak::AppendChar_Control(CFX_Char* pCurChar, + int32_t iRotation) { + m_dwCharType = FX_CHARTYPE_Control; + FX_DWORD dwRet = FX_TXTBREAK_None; + if (!m_bSingleLine) { + FX_WCHAR wch = pCurChar->m_wCharCode; + switch (wch) { + case L'\v': + case 0x2028: + dwRet = FX_TXTBREAK_LineBreak; + break; + case L'\f': + dwRet = FX_TXTBREAK_PageBreak; + break; + case 0x2029: + dwRet = FX_TXTBREAK_ParagraphBreak; + break; + default: + if (wch == m_wParagBreakChar) { + dwRet = FX_TXTBREAK_ParagraphBreak; + } + break; + } + if (dwRet != FX_TXTBREAK_None) { + dwRet = EndBreak(dwRet); + } + } + return dwRet; +} +FX_DWORD CFX_TxtBreak::AppendChar_Arabic(CFX_Char* pCurChar, + int32_t iRotation) { + FX_DWORD dwType = (pCurChar->m_dwCharProps & FX_CHARTYPEBITSMASK); + int32_t& iLineWidth = m_pCurLine->m_iWidth; + FX_WCHAR wForm; + int32_t iCharWidth = 0; + CFX_Char* pLastChar = NULL; + FX_BOOL bAlef = FALSE; + if (!m_bCombText && m_dwCharType >= FX_CHARTYPE_ArabicAlef && + m_dwCharType <= FX_CHARTYPE_ArabicDistortion) { + pLastChar = GetLastChar(1); + if (pLastChar != NULL) { + iCharWidth = pLastChar->m_iCharWidth; + if (iCharWidth > 0) { + iLineWidth -= iCharWidth; + } + CFX_Char* pPrevChar = GetLastChar(2); + wForm = m_pArabicChar->GetFormChar(pLastChar, pPrevChar, pCurChar); + bAlef = (wForm == 0xFEFF && + pLastChar->GetCharType() == FX_CHARTYPE_ArabicAlef); + int32_t iLastRotation = pLastChar->m_nRotation + m_iLineRotation; + if (m_bVertical && (pLastChar->m_dwCharProps & 0x8000) != 0) { + iLastRotation++; + } + if (m_bVertical != FX_IsOdd(iLastRotation)) { + iCharWidth = 1000; + } else { + m_pFont->GetCharWidth(wForm, iCharWidth, FALSE); + } + if (wForm == 0xFEFF) { + iCharWidth = m_iDefChar; + } + iCharWidth *= m_iFontSize; + iCharWidth = iCharWidth * m_iHorScale / 100; + pLastChar->m_iCharWidth = iCharWidth; + iLineWidth += iCharWidth; + iCharWidth = 0; + } + } + m_dwCharType = dwType; + wForm = m_pArabicChar->GetFormChar(pCurChar, bAlef ? NULL : pLastChar, NULL); + if (m_bCombText) { + iCharWidth = m_iCombWidth; + } else { + if (m_bVertical != FX_IsOdd(iRotation)) { + iCharWidth = 1000; + } else { + m_pFont->GetCharWidth(wForm, iCharWidth, FALSE); + } + if (wForm == 0xFEFF) { + iCharWidth = m_iDefChar; + } + iCharWidth *= m_iFontSize; + iCharWidth = iCharWidth * m_iHorScale / 100; + } + pCurChar->m_iCharWidth = iCharWidth; + iLineWidth += iCharWidth; + m_pCurLine->m_iArabicChars++; + if (!m_bSingleLine && iLineWidth > m_iLineWidth + m_iTolerance) { + return EndBreak(FX_TXTBREAK_LineBreak); + } + return FX_TXTBREAK_None; +} +FX_DWORD CFX_TxtBreak::AppendChar_Others(CFX_Char* pCurChar, + int32_t iRotation) { + FX_DWORD dwProps = pCurChar->m_dwCharProps; + FX_DWORD dwType = (dwProps & FX_CHARTYPEBITSMASK); + int32_t& iLineWidth = m_pCurLine->m_iWidth; + int32_t iCharWidth = 0; + m_dwCharType = dwType; + FX_WCHAR wch = pCurChar->m_wCharCode; + FX_WCHAR wForm = wch; + if (dwType == FX_CHARTYPE_Numeric) { + if (m_bArabicNumber) { + wForm = wch + 0x0630; + pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicIndic; + } + } else if (wch == L',') { + if (m_bArabicShapes && m_iCurArabicContext > 0) { + wForm = 0x060C; + pCurChar->m_dwCharStyles |= FX_TXTCHARSTYLE_ArabicComma; + } + } else if (m_bCurRTL || m_bVertical) { + wForm = FX_GetMirrorChar(wch, dwProps, m_bCurRTL, m_bVertical); + } + if (m_bCombText) { + iCharWidth = m_iCombWidth; + } else { + if (m_bVertical != FX_IsOdd(iRotation)) { + iCharWidth = 1000; + } else if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) { + iCharWidth = m_iDefChar; + } + iCharWidth *= m_iFontSize; + iCharWidth = iCharWidth * m_iHorScale / 100; + } + iCharWidth += m_iCharSpace; + pCurChar->m_iCharWidth = iCharWidth; + iLineWidth += iCharWidth; + FX_BOOL bBreak = (dwType != FX_CHARTYPE_Space || + (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0); + if (!m_bSingleLine && bBreak && iLineWidth > m_iLineWidth + m_iTolerance) { + return EndBreak(FX_TXTBREAK_LineBreak); + } + return FX_TXTBREAK_None; +} +typedef FX_DWORD (CFX_TxtBreak::*FX_TxtBreak_LPFAppendChar)(CFX_Char* pCurChar, + int32_t iRotation); +static const FX_TxtBreak_LPFAppendChar g_FX_TxtBreak_lpfAppendChar[16] = { + &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Tab, + &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Control, + &CFX_TxtBreak::AppendChar_Combination, &CFX_TxtBreak::AppendChar_Others, + &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Arabic, + &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Arabic, + &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Arabic, + &CFX_TxtBreak::AppendChar_Arabic, &CFX_TxtBreak::AppendChar_Others, + &CFX_TxtBreak::AppendChar_Others, &CFX_TxtBreak::AppendChar_Others, +}; +FX_DWORD CFX_TxtBreak::AppendChar(FX_WCHAR wch) { + FX_DWORD dwProps = kTextLayoutCodeProperties[(FX_WORD)wch]; + FX_DWORD dwType = (dwProps & FX_CHARTYPEBITSMASK); + CFX_TxtChar* pCurChar = m_pCurLine->m_pLineChars->AddSpace(); + pCurChar->m_wCharCode = (FX_WORD)wch; + pCurChar->m_nRotation = m_iCharRotation; + pCurChar->m_dwCharProps = dwProps; + pCurChar->m_dwCharStyles = 0; + pCurChar->m_iCharWidth = 0; + pCurChar->m_iHorizontalScale = m_iHorScale; + pCurChar->m_iVertialScale = m_iVerScale; + pCurChar->m_dwStatus = 0; + pCurChar->m_iBidiClass = 0; + pCurChar->m_iBidiLevel = 0; + pCurChar->m_iBidiPos = 0; + pCurChar->m_iBidiOrder = 0; + pCurChar->m_pUserData = NULL; + AppendChar_PageLoad(pCurChar, dwProps); + FX_DWORD dwRet1 = FX_TXTBREAK_None; + if (dwType != FX_CHARTYPE_Combination && + GetUnifiedCharType(m_dwCharType) != GetUnifiedCharType(dwType)) { + if (m_dwCharType > 0 && + m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance && !m_bSingleLine) { + if (m_dwCharType != FX_CHARTYPE_Space || dwType != FX_CHARTYPE_Control) { + dwRet1 = EndBreak(FX_TXTBREAK_LineBreak); + int32_t iCount = m_pCurLine->CountChars(); + if (iCount > 0) { + pCurChar = m_pCurLine->m_pLineChars->GetDataPtr(iCount - 1); + } + } + } + } + int32_t iRotation = m_iRotation; + if (m_bVertical && (dwProps & 0x8000) != 0) { + iRotation = (iRotation + 1) % 4; + } + FX_DWORD dwRet2 = + (this->*g_FX_TxtBreak_lpfAppendChar[dwType >> FX_CHARTYPEBITS])( + pCurChar, iRotation); + return std::max(dwRet1, dwRet2); +} +void CFX_TxtBreak::EndBreak_UpdateArabicShapes() { + FXSYS_assert(m_bArabicShapes); + int32_t iCount = m_pCurLine->CountChars(); + if (iCount < 2) { + return; + } + int32_t& iLineWidth = m_pCurLine->m_iWidth; + CFX_Char *pCur, *pNext; + pCur = m_pCurLine->GetCharPtr(0); + FX_BOOL bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; + pCur = m_pCurLine->GetCharPtr(1); + FX_WCHAR wch, wForm; + FX_BOOL bNextNum; + int32_t i = 1, iCharWidth, iRotation; + do { + i++; + if (i < iCount) { + pNext = m_pCurLine->GetCharPtr(i); + bNextNum = (pNext->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; + } else { + pNext = NULL; + bNextNum = FALSE; + } + wch = pCur->m_wCharCode; + if (wch == L'.') { + if (bPrevNum && bNextNum) { + iRotation = m_iRotation; + if (m_bVertical && (pCur->m_dwCharProps & 0x8000) != 0) { + iRotation = ((iRotation + 1) & 0x03); + } + wForm = wch == L'.' ? 0x066B : 0x066C; + iLineWidth -= pCur->m_iCharWidth; + if (m_bCombText) { + iCharWidth = m_iCombWidth; + } else { + if (m_bVertical != FX_IsOdd(iRotation)) { + iCharWidth = 1000; + } else if (!m_pFont->GetCharWidth(wForm, iCharWidth, FALSE)) { + iCharWidth = m_iDefChar; + } + iCharWidth *= m_iFontSize; + iCharWidth = iCharWidth * m_iHorScale / 100; + } + pCur->m_iCharWidth = iCharWidth; + iLineWidth += iCharWidth; + } + } + bPrevNum = (pCur->m_dwCharStyles & FX_TXTCHARSTYLE_ArabicIndic) != 0; + pCur = pNext; + } while (i < iCount); +} +FX_BOOL CFX_TxtBreak::EndBreak_SplitLine(CFX_TxtLine* pNextLine, + FX_BOOL bAllChars, + FX_DWORD dwStatus) { + int32_t iCount = m_pCurLine->CountChars(); + FX_BOOL bDone = FALSE; + CFX_Char* pTC; + if (!m_bSingleLine && m_pCurLine->m_iWidth > m_iLineWidth + m_iTolerance) { + pTC = m_pCurLine->GetCharPtr(iCount - 1); + switch (pTC->GetCharType()) { + case FX_CHARTYPE_Tab: + case FX_CHARTYPE_Control: + break; + case FX_CHARTYPE_Space: + if ((m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0) { + SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars); + bDone = TRUE; + } + break; + default: + SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars); + bDone = TRUE; + break; + } + } + iCount = m_pCurLine->CountChars(); + CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces; + CFX_TxtPiece tp; + if (m_bPagination) { + tp.m_dwStatus = dwStatus; + tp.m_iStartPos = m_pCurLine->m_iStart; + tp.m_iWidth = m_pCurLine->m_iWidth; + tp.m_iStartChar = 0; + tp.m_iChars = iCount; + tp.m_pChars = m_pCurLine->m_pLineChars; + tp.m_pUserData = m_pUserData; + pTC = m_pCurLine->GetCharPtr(0); + tp.m_dwCharStyles = pTC->m_dwCharStyles; + tp.m_iHorizontalScale = pTC->m_iHorizontalScale; + tp.m_iVerticalScale = pTC->m_iVertialScale; + pCurPieces->Add(tp); + m_pCurLine = pNextLine; + m_dwCharType = 0; + return TRUE; + } + if (bAllChars && !bDone) { + int32_t iEndPos = m_pCurLine->m_iWidth; + GetBreakPos(*m_pCurLine->m_pLineChars, iEndPos, bAllChars, TRUE); + } + return FALSE; +} +void CFX_TxtBreak::EndBreak_BidiLine(CFX_TPOArray& tpos, FX_DWORD dwStatus) { + CFX_TxtPiece tp; + FX_TPO tpo; + CFX_TxtChar* pTC; + int32_t i, j; + CFX_TxtCharArray& chars = *m_pCurLine->m_pLineChars; + int32_t iCount = m_pCurLine->CountChars(); + FX_BOOL bDone = (m_pCurLine->m_iArabicChars > 0 || m_bCurRTL); + if (!m_bPagination && bDone) { + int32_t iBidiNum = 0; + for (i = 0; i < iCount; i++) { + pTC = chars.GetDataPtr(i); + pTC->m_iBidiPos = i; + if (pTC->GetCharType() != FX_CHARTYPE_Control) { + iBidiNum = i; + } + if (i == 0) { + pTC->m_iBidiLevel = 1; + } + } + FX_BidiLine(chars, iBidiNum + 1, m_bCurRTL ? 1 : 0); + } + CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces; + if (!m_bPagination && + (bDone || (m_dwLayoutStyles & FX_TXTLAYOUTSTYLE_MutipleFormat) != 0)) { + tp.m_dwStatus = FX_TXTBREAK_PieceBreak; + tp.m_iStartPos = m_pCurLine->m_iStart; + tp.m_pChars = m_pCurLine->m_pLineChars; + int32_t iBidiLevel = -1, iCharWidth; + i = 0, j = -1; + while (i < iCount) { + pTC = chars.GetDataPtr(i); + if (iBidiLevel < 0) { + iBidiLevel = pTC->m_iBidiLevel; + tp.m_iWidth = 0; + tp.m_iBidiLevel = iBidiLevel; + tp.m_iBidiPos = pTC->m_iBidiOrder; + tp.m_dwCharStyles = pTC->m_dwCharStyles; + tp.m_pUserData = pTC->m_pUserData; + tp.m_iHorizontalScale = pTC->m_iHorizontalScale; + tp.m_iVerticalScale = pTC->m_iVertialScale; + tp.m_dwStatus = FX_TXTBREAK_PieceBreak; + } + if (iBidiLevel != pTC->m_iBidiLevel || pTC->m_dwStatus != 0) { + if (iBidiLevel == pTC->m_iBidiLevel) { + tp.m_dwStatus = pTC->m_dwStatus; + iCharWidth = pTC->m_iCharWidth; + if (iCharWidth > 0) { + tp.m_iWidth += iCharWidth; + } + i++; + } + tp.m_iChars = i - tp.m_iStartChar; + pCurPieces->Add(tp); + tp.m_iStartPos += tp.m_iWidth; + tp.m_iStartChar = i; + tpo.index = ++j; + tpo.pos = tp.m_iBidiPos; + tpos.Add(tpo); + iBidiLevel = -1; + } else { + iCharWidth = pTC->m_iCharWidth; + if (iCharWidth > 0) { + tp.m_iWidth += iCharWidth; + } + i++; + } + } + if (i > tp.m_iStartChar) { + tp.m_dwStatus = dwStatus; + tp.m_iChars = i - tp.m_iStartChar; + pCurPieces->Add(tp); + tpo.index = ++j; + tpo.pos = tp.m_iBidiPos; + tpos.Add(tpo); + } + if (j > -1) { + if (j > 0) { + FX_TEXTLAYOUT_PieceSort(tpos, 0, j); + int32_t iStartPos = 0; + for (i = 0; i <= j; i++) { + tpo = tpos.GetAt(i); + CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); + ttp.m_iStartPos = iStartPos; + iStartPos += ttp.m_iWidth; + } + } + CFX_TxtPiece& ttp = pCurPieces->GetAt(j); + ttp.m_dwStatus = dwStatus; + } + } else { + tp.m_dwStatus = dwStatus; + tp.m_iStartPos = m_pCurLine->m_iStart; + tp.m_iWidth = m_pCurLine->m_iWidth; + tp.m_iStartChar = 0; + tp.m_iChars = iCount; + tp.m_pChars = m_pCurLine->m_pLineChars; + tp.m_pUserData = m_pUserData; + pTC = chars.GetDataPtr(0); + tp.m_dwCharStyles = pTC->m_dwCharStyles; + tp.m_iHorizontalScale = pTC->m_iHorizontalScale; + tp.m_iVerticalScale = pTC->m_iVertialScale; + pCurPieces->Add(tp); + tpo.index = 0; + tpo.pos = 0; + tpos.Add(tpo); + } +} +void CFX_TxtBreak::EndBreak_Alignment(CFX_TPOArray& tpos, + FX_BOOL bAllChars, + FX_DWORD dwStatus) { + int32_t iNetWidth = m_pCurLine->m_iWidth, iGapChars = 0, iCharWidth; + CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces; + int32_t i, j, iCount = pCurPieces->GetSize(); + FX_BOOL bFind = FALSE; + FX_TPO tpo; + CFX_TxtChar* pTC; + FX_DWORD dwCharType; + for (i = iCount - 1; i > -1; i--) { + tpo = tpos.GetAt(i); + CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); + if (!bFind) { + iNetWidth = ttp.GetEndPos(); + } + FX_BOOL bArabic = FX_IsOdd(ttp.m_iBidiLevel); + j = bArabic ? 0 : ttp.m_iChars - 1; + while (j > -1 && j < ttp.m_iChars) { + pTC = ttp.GetCharPtr(j); + if (pTC->m_nBreakType == FX_LBT_DIRECT_BRK) { + iGapChars++; + } + if (!bFind || !bAllChars) { + dwCharType = pTC->GetCharType(); + if (dwCharType == FX_CHARTYPE_Space || + dwCharType == FX_CHARTYPE_Control) { + if (!bFind) { + iCharWidth = pTC->m_iCharWidth; + if (bAllChars && iCharWidth > 0) { + iNetWidth -= iCharWidth; + } + } + } else { + bFind = TRUE; + if (!bAllChars) { + break; + } + } + } + j += bArabic ? 1 : -1; + } + if (!bAllChars && bFind) { + break; + } + } + int32_t iOffset = m_iLineWidth - iNetWidth; + int32_t iLowerAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_LowerMask); + int32_t iHigherAlignment = (m_iCurAlignment & FX_TXTLINEALIGNMENT_HigherMask); + if (iGapChars > 0 && (iHigherAlignment == FX_TXTLINEALIGNMENT_Distributed || + (iHigherAlignment == FX_TXTLINEALIGNMENT_Justified && + dwStatus != FX_TXTBREAK_ParagraphBreak))) { + int32_t iStart = -1; + for (i = 0; i < iCount; i++) { + tpo = tpos.GetAt(i); + CFX_TxtPiece& ttp = pCurPieces->GetAt(tpo.index); + if (iStart < -1) { + iStart = ttp.m_iStartPos; + } else { + ttp.m_iStartPos = iStart; + } + int32_t k; + for (j = 0; j < ttp.m_iChars; j++) { + pTC = ttp.GetCharPtr(j); + if (pTC->m_nBreakType != FX_LBT_DIRECT_BRK || pTC->m_iCharWidth < 0) { + continue; + } + k = iOffset / iGapChars; + pTC->m_iCharWidth += k; + ttp.m_iWidth += k; + iOffset -= k; + iGapChars--; + if (iGapChars < 1) { + break; + } + } + iStart += ttp.m_iWidth; + } + } else if (iLowerAlignment > FX_TXTLINEALIGNMENT_Left) { + if (iLowerAlignment == FX_TXTLINEALIGNMENT_Center) { + iOffset /= 2; + } + if (iOffset > 0) { + for (i = 0; i < iCount; i++) { + CFX_TxtPiece& ttp = pCurPieces->GetAt(i); + ttp.m_iStartPos += iOffset; + } + } + } +} +FX_DWORD CFX_TxtBreak::EndBreak(FX_DWORD dwStatus) { + FXSYS_assert(dwStatus >= FX_TXTBREAK_PieceBreak && + dwStatus <= FX_TXTBREAK_PageBreak); + CFX_TxtPieceArray* pCurPieces = m_pCurLine->m_pLinePieces; + int32_t iCount = pCurPieces->GetSize(); + if (iCount > 0) { + CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(--iCount); + if (dwStatus > FX_TXTBREAK_PieceBreak) { + pLastPiece->m_dwStatus = dwStatus; + } else { + dwStatus = pLastPiece->m_dwStatus; + } + return dwStatus; + } else { + CFX_TxtLine* pLastLine = GetTxtLine(TRUE); + if (pLastLine != NULL) { + pCurPieces = pLastLine->m_pLinePieces; + iCount = pCurPieces->GetSize(); + if (iCount-- > 0) { + CFX_TxtPiece* pLastPiece = pCurPieces->GetPtrAt(iCount); + if (dwStatus > FX_TXTBREAK_PieceBreak) { + pLastPiece->m_dwStatus = dwStatus; + } else { + dwStatus = pLastPiece->m_dwStatus; + } + return dwStatus; + } + return FX_TXTBREAK_None; + } + iCount = m_pCurLine->CountChars(); + if (iCount < 1) { + return FX_TXTBREAK_None; + } + if (!m_bPagination) { + CFX_TxtChar* pTC = m_pCurLine->GetCharPtr(iCount - 1); + pTC->m_dwStatus = dwStatus; + } + if (dwStatus <= FX_TXTBREAK_PieceBreak) { + return dwStatus; + } + } + m_iReady = (m_pCurLine == m_pTxtLine1) ? 1 : 2; + CFX_TxtLine* pNextLine = + (m_pCurLine == m_pTxtLine1) ? m_pTxtLine2 : m_pTxtLine1; + FX_BOOL bAllChars = (m_iCurAlignment > FX_TXTLINEALIGNMENT_Right); + CFX_TPOArray tpos; + CFX_Char* pTC; + if (m_bArabicShapes) { + EndBreak_UpdateArabicShapes(); + } + if (EndBreak_SplitLine(pNextLine, bAllChars, dwStatus)) { + goto EndBreak_Ret; + } + EndBreak_BidiLine(tpos, dwStatus); + if (!m_bPagination && m_iCurAlignment > FX_TXTLINEALIGNMENT_Left) { + EndBreak_Alignment(tpos, bAllChars, dwStatus); + } +EndBreak_Ret: + m_pCurLine = pNextLine; + pTC = GetLastChar(0, FALSE); + m_dwCharType = pTC == NULL ? 0 : pTC->GetCharType(); + if (dwStatus == FX_TXTBREAK_ParagraphBreak) { + m_iArabicContext = m_iCurArabicContext = 1; + ResetArabicContext(); + } + return dwStatus; +} +int32_t CFX_TxtBreak::GetBreakPos(CFX_TxtCharArray& ca, + int32_t& iEndPos, + FX_BOOL bAllChars, + FX_BOOL bOnlyBrk) { + int32_t iLength = ca.GetSize() - 1; + if (iLength < 1) { + return iLength; + } + int32_t iBreak = -1, iBreakPos = -1, iIndirect = -1, iIndirectPos = -1, + iLast = -1, iLastPos = -1; + if (m_bSingleLine || iEndPos <= m_iLineWidth) { + if (!bAllChars) { + return iLength; + } + iBreak = iLength; + iBreakPos = iEndPos; + } + FX_BOOL bSpaceBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_SpaceBreak) != 0; + FX_BOOL bNumberBreak = (m_dwPolicies & FX_TXTBREAKPOLICY_NumberBreak) != 0; + FX_LINEBREAKTYPE eType; + FX_DWORD nCodeProp, nCur, nNext; + CFX_Char* pCur = ca.GetDataPtr(iLength--); + if (bAllChars) { + pCur->m_nBreakType = FX_LBT_UNKNOWN; + } + nCodeProp = pCur->m_dwCharProps; + nNext = nCodeProp & 0x003F; + int32_t iCharWidth = pCur->m_iCharWidth; + if (iCharWidth > 0) { + iEndPos -= iCharWidth; + } + while (iLength >= 0) { + pCur = ca.GetDataPtr(iLength); + nCodeProp = pCur->m_dwCharProps; + nCur = nCodeProp & 0x003F; + if (nCur == FX_CBP_SP) { + if (nNext == FX_CBP_SP) { + eType = bSpaceBreak ? FX_LBT_DIRECT_BRK : FX_LBT_PROHIBITED_BRK; + } else { + eType = *((const FX_LINEBREAKTYPE*)gs_FX_LineBreak_PairTable + + (nCur << 5) + nNext); + } + } else if (bNumberBreak && nCur == FX_CBP_NU && nNext == FX_CBP_NU) { + eType = FX_LBT_DIRECT_BRK; + } else { + if (nNext == FX_CBP_SP) { + eType = FX_LBT_PROHIBITED_BRK; + } else { + eType = *((const FX_LINEBREAKTYPE*)gs_FX_LineBreak_PairTable + + (nCur << 5) + nNext); + } + } + if (bAllChars) { + pCur->m_nBreakType = (uint8_t)eType; + } + if (!bOnlyBrk) { + if (m_bSingleLine || iEndPos <= m_iLineWidth || + (nCur == FX_CBP_SP && !bSpaceBreak)) { + if (eType == FX_LBT_DIRECT_BRK && iBreak < 0) { + iBreak = iLength; + iBreakPos = iEndPos; + if (!bAllChars) { + return iLength; + } + } else if (eType == FX_LBT_INDIRECT_BRK && iIndirect < 0) { + iIndirect = iLength; + iIndirectPos = iEndPos; + } + if (iLast < 0) { + iLast = iLength; + iLastPos = iEndPos; + } + } + iCharWidth = pCur->m_iCharWidth; + if (iCharWidth > 0) { + iEndPos -= iCharWidth; + } + } + nNext = nCodeProp & 0x003F; + iLength--; + } + if (bOnlyBrk) { + return 0; + } + if (iBreak > -1) { + iEndPos = iBreakPos; + return iBreak; + } + if (iIndirect > -1) { + iEndPos = iIndirectPos; + return iIndirect; + } + if (iLast > -1) { + iEndPos = iLastPos; + return iLast; + } + return 0; +} +void CFX_TxtBreak::SplitTextLine(CFX_TxtLine* pCurLine, + CFX_TxtLine* pNextLine, + FX_BOOL bAllChars) { + FXSYS_assert(pCurLine != NULL && pNextLine != NULL); + int32_t iCount = pCurLine->CountChars(); + if (iCount < 2) { + return; + } + int32_t iEndPos = pCurLine->m_iWidth; + CFX_TxtCharArray& curChars = *pCurLine->m_pLineChars; + int32_t iCharPos = GetBreakPos(curChars, iEndPos, bAllChars, FALSE); + if (iCharPos < 0) { + iCharPos = 0; + } + iCharPos++; + if (iCharPos >= iCount) { + pNextLine->RemoveAll(TRUE); + CFX_Char* pTC = curChars.GetDataPtr(iCharPos - 1); + pTC->m_nBreakType = FX_LBT_UNKNOWN; + return; + } + CFX_TxtCharArray& nextChars = *pNextLine->m_pLineChars; + int cur_size = curChars.GetSize(); + nextChars.SetSize(cur_size - iCharPos); + FXSYS_memcpy(nextChars.GetData(), curChars.GetDataPtr(iCharPos), + (cur_size - iCharPos) * sizeof(CFX_TxtChar)); + iCount -= iCharPos; + cur_size = curChars.GetSize(); + curChars.RemoveAt(cur_size - iCount, iCount); + pCurLine->m_iWidth = iEndPos; + CFX_TxtChar* pTC = curChars.GetDataPtr(iCharPos - 1); + pTC->m_nBreakType = FX_LBT_UNKNOWN; + iCount = nextChars.GetSize(); + int32_t iCharWidth, iWidth = 0; + for (int32_t i = 0; i < iCount; i++) { + pTC = nextChars.GetDataPtr(i); + if (pTC->GetCharType() >= FX_CHARTYPE_ArabicAlef) { + pCurLine->m_iArabicChars--; + pNextLine->m_iArabicChars++; + } + iCharWidth = pTC->m_iCharWidth; + if (iCharWidth > 0) { + iWidth += iCharWidth; + } + if (m_bPagination) { + continue; + } + pTC->m_dwStatus = 0; + } + pNextLine->m_iWidth = iWidth; +} +int32_t CFX_TxtBreak::CountBreakChars() const { + CFX_TxtLine* pTxtLine = GetTxtLine(TRUE); + return pTxtLine == NULL ? 0 : pTxtLine->CountChars(); +} +int32_t CFX_TxtBreak::CountBreakPieces() const { + CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(TRUE); + if (pTxtPieces == NULL) { + return 0; + } + return pTxtPieces->GetSize(); +} +const CFX_TxtPiece* CFX_TxtBreak::GetBreakPiece(int32_t index) const { + CFX_TxtPieceArray* pTxtPieces = GetTxtPieces(TRUE); + if (pTxtPieces == NULL) { + return NULL; + } + if (index < 0 || index >= pTxtPieces->GetSize()) { + return NULL; + } + return pTxtPieces->GetPtrAt(index); +} +void CFX_TxtBreak::ClearBreakPieces() { + CFX_TxtLine* pTxtLine = GetTxtLine(TRUE); + if (pTxtLine != NULL) { + pTxtLine->RemoveAll(TRUE); + } + m_iReady = 0; +} +void CFX_TxtBreak::Reset() { + m_dwCharType = 0; + m_iArabicContext = m_iCurArabicContext = 1; + ResetArabicContext(); + m_pTxtLine1->RemoveAll(TRUE); + m_pTxtLine2->RemoveAll(TRUE); +} + +struct FX_FORMCHAR { + FX_WORD wch; + FX_WORD wForm; + int32_t iWidth; +}; + +int32_t CFX_TxtBreak::GetDisplayPos(const FX_TXTRUN* pTxtRun, + FXTEXT_CHARPOS* pCharPos, + FX_BOOL bCharCode, + CFX_WideString* pWSForms, + FX_AdjustCharDisplayPos pAdjustPos) const { + if (pTxtRun == NULL || pTxtRun->iLength < 1) { + return 0; + } + IFX_TxtAccess* pAccess = pTxtRun->pAccess; + void* pIdentity = pTxtRun->pIdentity; + const FX_WCHAR* pStr = pTxtRun->pStr; + int32_t* pWidths = pTxtRun->pWidths; + int32_t iLength = pTxtRun->iLength - 1; + IFX_Font* pFont = pTxtRun->pFont; + FX_DWORD dwStyles = pTxtRun->dwStyles; + CFX_RectF rtText(*pTxtRun->pRect); + FX_BOOL bRTLPiece = + (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel) != 0; + FX_BOOL bArabicNumber = + (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicNumber) != 0; + FX_BOOL bArabicComma = + (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_ArabicComma) != 0; + FX_FLOAT fFontSize = pTxtRun->fFontSize; + int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); + int32_t iAscent = pFont->GetAscent(); + int32_t iDescent = pFont->GetDescent(); + int32_t iMaxHeight = iAscent - iDescent; + FX_FLOAT fFontHeight = fFontSize; + FX_FLOAT fAscent = fFontHeight * (FX_FLOAT)iAscent / (FX_FLOAT)iMaxHeight; + FX_FLOAT fDescent = fFontHeight * (FX_FLOAT)iDescent / (FX_FLOAT)iMaxHeight; + FX_BOOL bVerticalDoc = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout) != 0; + FX_BOOL bVerticalChar = (dwStyles & FX_TXTLAYOUTSTYLE_VerticalChars) != 0; + int32_t iRotation = GetLineRotation(dwStyles) + pTxtRun->iCharRotation; + int32_t iCharRotation; + FX_WCHAR wch, wPrev = 0xFEFF, wNext, wForm, wLast = 0xFEFF; + int32_t iWidth, iCharWidth, iCharHeight; + FX_FLOAT fX, fY, fCharWidth, fCharHeight; + int32_t iHorScale = pTxtRun->iHorizontalScale; + int32_t iVerScale = pTxtRun->iVerticalScale; + FX_BOOL bSkipSpace = pTxtRun->bSkipSpace; + FX_BOOL bEmptyChar, bShadda = FALSE, bLam = FALSE; + FX_DWORD dwProps, dwCharType; + FX_FORMCHAR formChars[3]; + FX_FLOAT fYBase; + fX = rtText.left; + if (bVerticalDoc) { + fX += (rtText.width - fFontSize) / 2.0f; + fYBase = bRTLPiece ? rtText.bottom() : rtText.top; + fY = fYBase; + } else { + if (bRTLPiece) { + fX = rtText.right(); + } + fYBase = rtText.top + (rtText.height - fFontSize) / 2.0f; + fY = fYBase + fAscent; + } + int32_t iCount = 0, iNext, iForms; + for (int32_t i = 0; i <= iLength; i++) { + if (pAccess != NULL) { + wch = pAccess->GetChar(pIdentity, i); + iWidth = pAccess->GetWidth(pIdentity, i); + } else { + wch = *pStr++; + iWidth = *pWidths++; + } + dwProps = FX_GetUnicodeProperties(wch); + dwCharType = (dwProps & FX_CHARTYPEBITSMASK); + if (dwCharType == FX_CHARTYPE_ArabicAlef && iWidth == 0) { + wPrev = 0xFEFF; + wLast = wch; + continue; + } + if (dwCharType >= FX_CHARTYPE_ArabicAlef) { + if (i < iLength) { + if (pAccess != NULL) { + iNext = i + 1; + while (iNext <= iLength) { + wNext = pAccess->GetChar(pIdentity, iNext); + dwProps = FX_GetUnicodeProperties(wNext); + if ((dwProps & FX_CHARTYPEBITSMASK) != FX_CHARTYPE_Combination) { + break; + } + iNext++; + } + if (iNext > iLength) { + wNext = 0xFEFF; + } + } else { + int32_t j = -1; + do { + j++; + if (i + j >= iLength) { + break; + } + wNext = pStr[j]; + dwProps = FX_GetUnicodeProperties(wNext); + } while ((dwProps & FX_CHARTYPEBITSMASK) == FX_CHARTYPE_Combination); + if (i + j >= iLength) { + wNext = 0xFEFF; + } + } + } else { + wNext = 0xFEFF; + } + wForm = m_pArabicChar->GetFormChar(wch, wPrev, wNext); + bLam = (wPrev == 0x0644 && wch == 0x0644 && wNext == 0x0647); + } else if (dwCharType == FX_CHARTYPE_Combination) { + wForm = wch; + if (wch >= 0x064C && wch <= 0x0651) { + if (bShadda) { + wForm = 0xFEFF; + bShadda = FALSE; + } else { + wNext = 0xFEFF; + if (pAccess != NULL) { + iNext = i + 1; + if (iNext <= iLength) { + wNext = pAccess->GetChar(pIdentity, iNext); + } + } else { + if (i < iLength) { + wNext = *pStr; + } + } + if (wch == 0x0651) { + if (wNext >= 0x064C && wNext <= 0x0650) { + wForm = FX_GetArabicFromShaddaTable(wNext); + bShadda = TRUE; + } + } else { + if (wNext == 0x0651) { + wForm = FX_GetArabicFromShaddaTable(wch); + bShadda = TRUE; + } + } + } + } else { + bShadda = FALSE; + } + } else if (dwCharType == FX_CHARTYPE_Numeric) { + wForm = wch; + if (bArabicNumber) { + wForm += 0x0630; + } + } else if (wch == L'.') { + wForm = wch; + if (bArabicNumber) { + wNext = 0xFEFF; + if (pAccess != NULL) { + iNext = i + 1; + if (iNext <= iLength) { + wNext = pAccess->GetChar(pIdentity, iNext); + } + } else { + if (i < iLength) { + wNext = *pStr; + } + } + if (wNext >= L'0' && wNext <= L'9') { + wForm = 0x066B; + } + } + } else if (wch == L',') { + wForm = wch; + if (bArabicComma) { + wForm = 0x060C; + } + } else if (bRTLPiece || bVerticalChar) { + wForm = FX_GetMirrorChar(wch, dwProps, bRTLPiece, bVerticalChar); + } else { + wForm = wch; + } + if (dwCharType != FX_CHARTYPE_Combination) { + bShadda = FALSE; + } + if (dwCharType < FX_CHARTYPE_ArabicAlef) { + bLam = FALSE; + } + dwProps = FX_GetUnicodeProperties(wForm); + iCharRotation = iRotation; + if (bVerticalChar && (dwProps & 0x8000) != 0) { + iCharRotation++; + } + iCharRotation %= 4; + bEmptyChar = + (dwCharType >= FX_CHARTYPE_Tab && dwCharType <= FX_CHARTYPE_Control); + if (wForm == 0xFEFF) { + bEmptyChar = TRUE; + } + iForms = bLam ? 3 : 1; + iCount += (bEmptyChar && bSkipSpace) ? 0 : iForms; + if (pCharPos == NULL) { + if (iWidth > 0) { + wPrev = wch; + } + wLast = wch; + continue; + } + iCharWidth = iWidth; + if (iCharWidth < 0) { + iCharWidth = -iCharWidth; + } + iCharWidth /= iFontSize; + formChars[0].wch = wch; + formChars[0].wForm = wForm; + formChars[0].iWidth = iCharWidth; + if (bLam) { + formChars[1].wForm = 0x0651; + iCharWidth = 0; + pFont->GetCharWidth(0x0651, iCharWidth, FALSE); + formChars[1].iWidth = iCharWidth; + formChars[2].wForm = 0x0670; + iCharWidth = 0; + pFont->GetCharWidth(0x0670, iCharWidth, FALSE); + formChars[2].iWidth = iCharWidth; + } + for (int32_t j = 0; j < iForms; j++) { + wForm = (FX_WCHAR)formChars[j].wForm; + iCharWidth = formChars[j].iWidth; + if (j > 0) { + dwCharType = FX_CHARTYPE_Combination; + wch = wForm; + wLast = (FX_WCHAR)formChars[j - 1].wForm; + } + if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { + pCharPos->m_GlyphIndex = + bCharCode ? wch : pFont->GetGlyphIndex(wForm, FALSE); + pCharPos->m_ExtGID = pCharPos->m_GlyphIndex; + pCharPos->m_FontCharWidth = iCharWidth; + if (pWSForms) { + *pWSForms += wForm; + } + } + if (bVerticalDoc) { + iCharHeight = iCharWidth; + iCharWidth = 1000; + } else { + iCharHeight = 1000; + } + fCharWidth = fFontSize * iCharWidth / 1000.0f; + fCharHeight = fFontSize * iCharHeight / 1000.0f; + if (bRTLPiece && dwCharType != FX_CHARTYPE_Combination) { + if (bVerticalDoc) { + fY -= fCharHeight; + } else { + fX -= fCharWidth; + } + } + if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { + pCharPos->m_OriginX = fX; + pCharPos->m_OriginY = fY; + if ((dwStyles & FX_TXTLAYOUTSTYLE_CombText) != 0) { + int32_t iFormWidth = iCharWidth; + pFont->GetCharWidth(wForm, iFormWidth, FALSE); + FX_FLOAT fOffset = fFontSize * (iCharWidth - iFormWidth) / 2000.0f; + if (bVerticalDoc) { + pCharPos->m_OriginY += fOffset; + } else { + pCharPos->m_OriginX += fOffset; + } + } + if (dwCharType == FX_CHARTYPE_Combination) { + CFX_Rect rtBBox; + rtBBox.Reset(); + if (pFont->GetCharBBox(wForm, rtBBox, FALSE)) { + pCharPos->m_OriginY = + fYBase + fFontSize - + fFontSize * (FX_FLOAT)rtBBox.height / (FX_FLOAT)iMaxHeight; + } + if (wForm == wch && wLast != 0xFEFF) { + FX_DWORD dwLastProps = FX_GetUnicodeProperties(wLast); + if ((dwLastProps & FX_CHARTYPEBITSMASK) == + FX_CHARTYPE_Combination) { + CFX_Rect rtBBox; + rtBBox.Reset(); + if (pFont->GetCharBBox(wLast, rtBBox, FALSE)) { + pCharPos->m_OriginY -= fFontSize * rtBBox.height / iMaxHeight; + } + } + } + } + CFX_PointF ptOffset; + FX_BOOL bAdjusted = FALSE; + if (pAdjustPos) { + bAdjusted = pAdjustPos(wForm, bCharCode, pFont, fFontSize, + bVerticalChar, ptOffset); + } + if (!bAdjusted && bVerticalChar && (dwProps & 0x00010000) != 0) { + CFX_Rect rtBBox; + rtBBox.Reset(); + if (pFont->GetCharBBox(wForm, rtBBox, FALSE)) { + ptOffset.x = fFontSize * (850 - rtBBox.right()) / iMaxHeight; + ptOffset.y = fFontSize * (iAscent - rtBBox.top - 150) / iMaxHeight; + } + } + pCharPos->m_OriginX += ptOffset.x; + pCharPos->m_OriginY -= ptOffset.y; + } + if (!bRTLPiece && dwCharType != FX_CHARTYPE_Combination) { + if (bVerticalDoc) { + fY += fCharHeight; + } else { + fX += fCharWidth; + } + } + if (!bEmptyChar || (bEmptyChar && !bSkipSpace)) { + pCharPos->m_bGlyphAdjust = TRUE; + if (bVerticalDoc) { + if (iCharRotation == 0) { + pCharPos->m_AdjustMatrix[0] = -1; + pCharPos->m_AdjustMatrix[1] = 0; + pCharPos->m_AdjustMatrix[2] = 0; + pCharPos->m_AdjustMatrix[3] = 1; + pCharPos->m_OriginY += fAscent; + } else if (iCharRotation == 1) { + pCharPos->m_AdjustMatrix[0] = 0; + pCharPos->m_AdjustMatrix[1] = -1; + pCharPos->m_AdjustMatrix[2] = -1; + pCharPos->m_AdjustMatrix[3] = 0; + pCharPos->m_OriginX -= fDescent; + } else if (iCharRotation == 2) { + pCharPos->m_AdjustMatrix[0] = 1; + pCharPos->m_AdjustMatrix[1] = 0; + pCharPos->m_AdjustMatrix[2] = 0; + pCharPos->m_AdjustMatrix[3] = -1; + pCharPos->m_OriginX += fCharWidth; + pCharPos->m_OriginY += fAscent; + } else { + pCharPos->m_AdjustMatrix[0] = 0; + pCharPos->m_AdjustMatrix[1] = 1; + pCharPos->m_AdjustMatrix[2] = 1; + pCharPos->m_AdjustMatrix[3] = 0; + pCharPos->m_OriginX += fAscent; + } + } else { + if (iCharRotation == 0) { + pCharPos->m_AdjustMatrix[0] = -1; + pCharPos->m_AdjustMatrix[1] = 0; + pCharPos->m_AdjustMatrix[2] = 0; + pCharPos->m_AdjustMatrix[3] = 1; + } else if (iCharRotation == 1) { + pCharPos->m_AdjustMatrix[0] = 0; + pCharPos->m_AdjustMatrix[1] = -1; + pCharPos->m_AdjustMatrix[2] = -1; + pCharPos->m_AdjustMatrix[3] = 0; + pCharPos->m_OriginX -= fDescent; + pCharPos->m_OriginY -= fAscent + fDescent; + } else if (iCharRotation == 2) { + pCharPos->m_AdjustMatrix[0] = 1; + pCharPos->m_AdjustMatrix[1] = 0; + pCharPos->m_AdjustMatrix[2] = 0; + pCharPos->m_AdjustMatrix[3] = -1; + pCharPos->m_OriginX += fCharWidth; + pCharPos->m_OriginY -= fAscent; + } else { + pCharPos->m_AdjustMatrix[0] = 0; + pCharPos->m_AdjustMatrix[1] = 1; + pCharPos->m_AdjustMatrix[2] = 1; + pCharPos->m_AdjustMatrix[3] = 0; + pCharPos->m_OriginX += fAscent; + } + } + if (iHorScale != 100 || iVerScale != 100) { + pCharPos->m_AdjustMatrix[0] = + pCharPos->m_AdjustMatrix[0] * iHorScale / 100.0f; + pCharPos->m_AdjustMatrix[1] = + pCharPos->m_AdjustMatrix[1] * iHorScale / 100.0f; + pCharPos->m_AdjustMatrix[2] = + pCharPos->m_AdjustMatrix[2] * iVerScale / 100.0f; + pCharPos->m_AdjustMatrix[3] = + pCharPos->m_AdjustMatrix[3] * iVerScale / 100.0f; + } + pCharPos++; + } + } + if (iWidth > 0) { + wPrev = (FX_WCHAR)formChars[0].wch; + } + wLast = wch; + } + return iCount; +} +int32_t CFX_TxtBreak::GetCharRects(const FX_TXTRUN* pTxtRun, + CFX_RectFArray& rtArray, + FX_BOOL bCharBBox) const { + if (pTxtRun == NULL || pTxtRun->iLength < 1) { + return 0; + } + IFX_TxtAccess* pAccess = pTxtRun->pAccess; + void* pIdentity = pTxtRun->pIdentity; + const FX_WCHAR* pStr = pTxtRun->pStr; + int32_t* pWidths = pTxtRun->pWidths; + int32_t iLength = pTxtRun->iLength; + CFX_RectF rect(*pTxtRun->pRect); + FX_BOOL bRTLPiece = + (pTxtRun->dwCharStyles & FX_TXTCHARSTYLE_OddBidiLevel) != 0; + FX_FLOAT fFontSize = pTxtRun->fFontSize; + int32_t iFontSize = FXSYS_round(fFontSize * 20.0f); + FX_FLOAT fScale = fFontSize / 1000.0f; + IFX_Font* pFont = pTxtRun->pFont; + if (pFont == NULL) { + bCharBBox = FALSE; + } + CFX_Rect bbox; + bbox.Set(0, 0, 0, 0); + if (bCharBBox) { + bCharBBox = pFont->GetBBox(bbox); + } + FX_FLOAT fLeft = std::max(0.0f, bbox.left * fScale); + FX_FLOAT fHeight = FXSYS_fabs(bbox.height * fScale); + rtArray.RemoveAll(); + rtArray.SetSize(iLength); + FX_BOOL bVertical = + (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_VerticalLayout) != 0; + FX_BOOL bSingleLine = (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_SingleLine) != 0; + FX_BOOL bCombText = (pTxtRun->dwStyles & FX_TXTLAYOUTSTYLE_CombText) != 0; + FX_WCHAR wch, wLineBreakChar = pTxtRun->wLineBreakChar; + int32_t iCharSize; + FX_FLOAT fCharSize, fStart; + if (bVertical) { + fStart = bRTLPiece ? rect.bottom() : rect.top; + } else { + fStart = bRTLPiece ? rect.right() : rect.left; + } + for (int32_t i = 0; i < iLength; i++) { + if (pAccess != NULL) { + wch = pAccess->GetChar(pIdentity, i); + iCharSize = pAccess->GetWidth(pIdentity, i); + } else { + wch = *pStr++; + iCharSize = *pWidths++; + } + fCharSize = (FX_FLOAT)iCharSize / 20000.0f; + FX_BOOL bRet = (!bSingleLine && FX_IsCtrlCode(wch)); + if (!(wch == L'\v' || wch == L'\f' || wch == 0x2028 || wch == 0x2029 || + (wLineBreakChar != 0xFEFF && wch == wLineBreakChar))) { + bRet = FALSE; + } + if (bRet) { + iCharSize = iFontSize * 500; + fCharSize = fFontSize / 2.0f; + } + if (bVertical) { + rect.top = fStart; + if (bRTLPiece) { + rect.top -= fCharSize; + fStart -= fCharSize; + } else { + fStart += fCharSize; + } + rect.height = fCharSize; + } else { + rect.left = fStart; + if (bRTLPiece) { + rect.left -= fCharSize; + fStart -= fCharSize; + } else { + fStart += fCharSize; + } + rect.width = fCharSize; + } + if (bCharBBox && !bRet) { + int32_t iCharWidth = 1000; + pFont->GetCharWidth(wch, iCharWidth); + FX_FLOAT fRTLeft = 0, fCharWidth = 0; + if (iCharWidth > 0) { + fCharWidth = iCharWidth * fScale; + fRTLeft = fLeft; + if (bCombText) { + fRTLeft = (rect.width - fCharWidth) / 2.0f; + } + } + CFX_RectF rtBBoxF; + if (bVertical) { + rtBBoxF.top = rect.left + fRTLeft; + rtBBoxF.left = rect.top + (rect.height - fHeight) / 2.0f; + rtBBoxF.height = fCharWidth; + rtBBoxF.width = fHeight; + rtBBoxF.left = std::max(rtBBoxF.left, 0.0f); + } else { + rtBBoxF.left = rect.left + fRTLeft; + rtBBoxF.top = rect.top + (rect.height - fHeight) / 2.0f; + rtBBoxF.width = fCharWidth; + rtBBoxF.height = fHeight; + rtBBoxF.top = std::max(rtBBoxF.top, 0.0f); + } + rtArray.SetAt(i, rtBBoxF); + continue; + } + rtArray.SetAt(i, rect); + } + return iLength; +} |