summaryrefslogtreecommitdiff
path: root/xfa/fgas/layout/cfx_rtfbreak.cpp
diff options
context:
space:
mode:
authorDan Sinclair <dsinclair@chromium.org>2017-04-18 13:56:39 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-04-18 18:08:17 +0000
commit994acdc1a31015674e786d24cc37d08dfae6d863 (patch)
treecc0fc6e15f4dd439b86e2cb673282613867ce4bb /xfa/fgas/layout/cfx_rtfbreak.cpp
parent5ae87922cb96810a05b2262c66b55b7e8f00e46d (diff)
downloadpdfium-994acdc1a31015674e786d24cc37d08dfae6d863.tar.xz
Rename text break files to match class names.
This CL renames several fgas/layout files to match the class names contained in the files. Change-Id: Ib4feaa902618e577261e51dbac743cb4cb500ea1 Reviewed-on: https://pdfium-review.googlesource.com/4290 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'xfa/fgas/layout/cfx_rtfbreak.cpp')
-rw-r--r--xfa/fgas/layout/cfx_rtfbreak.cpp790
1 files changed, 790 insertions, 0 deletions
diff --git a/xfa/fgas/layout/cfx_rtfbreak.cpp b/xfa/fgas/layout/cfx_rtfbreak.cpp
new file mode 100644
index 0000000000..9acc082d8e
--- /dev/null
+++ b/xfa/fgas/layout/cfx_rtfbreak.cpp
@@ -0,0 +1,790 @@
+// 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/cfx_rtfbreak.h"
+
+#include <algorithm>
+
+#include "core/fxcrt/fx_arabic.h"
+#include "third_party/base/stl_util.h"
+#include "xfa/fgas/font/cfgas_gefont.h"
+#include "xfa/fgas/layout/cfx_linebreak.h"
+
+CFX_RTFBreak::CFX_RTFBreak(uint32_t dwLayoutStyles)
+ : CFX_Break(dwLayoutStyles),
+ m_bPagination(false),
+ m_iAlignment(CFX_RTFLineAlignment::Left),
+ m_pUserData(nullptr) {
+ SetBreakStatus();
+ m_bPagination = !!(m_dwLayoutStyles & FX_LAYOUTSTYLE_Pagination);
+}
+
+CFX_RTFBreak::~CFX_RTFBreak() {}
+
+void CFX_RTFBreak::SetLineStartPos(float fLinePos) {
+ int32_t iLinePos = FXSYS_round(fLinePos * 20000.0f);
+ iLinePos = std::min(iLinePos, m_iLineWidth);
+ iLinePos = std::max(iLinePos, m_iLineStart);
+ m_pCurLine->m_iStart = iLinePos;
+}
+
+void CFX_RTFBreak::AddPositionedTab(float fTabPos) {
+ int32_t iTabPos =
+ std::min(FXSYS_round(fTabPos * 20000.0f) + m_iLineStart, m_iLineWidth);
+ auto it = std::lower_bound(m_PositionedTabs.begin(), m_PositionedTabs.end(),
+ iTabPos);
+ if (it != m_PositionedTabs.end() && *it == iTabPos)
+ return;
+ m_PositionedTabs.insert(it, iTabPos);
+}
+
+void CFX_RTFBreak::SetUserData(const CFX_RetainPtr<CFX_Retainable>& pUserData) {
+ if (m_pUserData == pUserData)
+ return;
+
+ SetBreakStatus();
+ m_pUserData = pUserData;
+}
+
+int32_t CFX_RTFBreak::GetLastPositionedTab() const {
+ return m_PositionedTabs.empty() ? m_iLineStart : m_PositionedTabs.back();
+}
+
+bool CFX_RTFBreak::GetPositionedTab(int32_t* iTabPos) const {
+ auto it = std::upper_bound(m_PositionedTabs.begin(), m_PositionedTabs.end(),
+ *iTabPos);
+ if (it == m_PositionedTabs.end())
+ return false;
+
+ *iTabPos = *it;
+ return true;
+}
+
+CFX_BreakType CFX_RTFBreak::AppendChar(wchar_t wch) {
+ ASSERT(m_pFont && m_pCurLine);
+
+ uint32_t dwProps = kTextLayoutCodeProperties[static_cast<uint16_t>(wch)];
+ FX_CHARTYPE chartype = GetCharTypeFromProp(dwProps);
+ m_pCurLine->m_LineChars.emplace_back();
+
+ CFX_Char* pCurChar = &m_pCurLine->m_LineChars.back();
+ pCurChar->m_dwStatus = CFX_BreakType::None;
+ pCurChar->m_wCharCode = wch;
+ pCurChar->m_dwCharProps = dwProps;
+ pCurChar->m_iFontSize = m_iFontSize;
+ pCurChar->m_iHorizontalScale = m_iHorizontalScale;
+ pCurChar->m_iVerticalScale = m_iVerticalScale;
+ pCurChar->m_iCharWidth = 0;
+ pCurChar->m_dwIdentity = m_dwIdentity;
+ pCurChar->m_pUserData = m_pUserData;
+
+ CFX_BreakType dwRet1 = CFX_BreakType::None;
+ if (chartype != FX_CHARTYPE_Combination &&
+ GetUnifiedCharType(m_eCharType) != GetUnifiedCharType(chartype) &&
+ m_eCharType != FX_CHARTYPE_Unknown &&
+ m_pCurLine->GetLineEnd() > m_iLineWidth + m_iTolerance &&
+ (m_eCharType != FX_CHARTYPE_Space || chartype != FX_CHARTYPE_Control)) {
+ dwRet1 = EndBreak(CFX_BreakType::Line);
+ int32_t iCount = m_pCurLine->CountChars();
+ if (iCount > 0)
+ pCurChar = &m_pCurLine->m_LineChars[iCount - 1];
+ }
+
+ CFX_BreakType dwRet2 = CFX_BreakType::None;
+ switch (chartype) {
+ case FX_CHARTYPE_Tab:
+ AppendChar_Tab(pCurChar);
+ break;
+ case FX_CHARTYPE_Control:
+ dwRet2 = AppendChar_Control(pCurChar);
+ break;
+ case FX_CHARTYPE_Combination:
+ AppendChar_Combination(pCurChar);
+ break;
+ case FX_CHARTYPE_ArabicAlef:
+ case FX_CHARTYPE_ArabicSpecial:
+ case FX_CHARTYPE_ArabicDistortion:
+ case FX_CHARTYPE_ArabicNormal:
+ case FX_CHARTYPE_ArabicForm:
+ case FX_CHARTYPE_Arabic:
+ dwRet2 = AppendChar_Arabic(pCurChar);
+ break;
+ case FX_CHARTYPE_Unknown:
+ case FX_CHARTYPE_Space:
+ case FX_CHARTYPE_Numeric:
+ case FX_CHARTYPE_Normal:
+ default:
+ dwRet2 = AppendChar_Others(pCurChar);
+ break;
+ }
+
+ m_eCharType = chartype;
+ return std::max(dwRet1, dwRet2);
+}
+
+void CFX_RTFBreak::AppendChar_Combination(CFX_Char* pCurChar) {
+ int32_t iCharWidth = 0;
+ if (!m_pFont->GetCharWidth(pCurChar->m_wCharCode, iCharWidth, false))
+ iCharWidth = 0;
+
+ iCharWidth *= m_iFontSize;
+ iCharWidth = iCharWidth * m_iHorizontalScale / 100;
+ CFX_Char* pLastChar = GetLastChar(0, false, true);
+ if (pLastChar && pLastChar->GetCharType() > FX_CHARTYPE_Combination)
+ iCharWidth = -iCharWidth;
+ else
+ m_eCharType = FX_CHARTYPE_Combination;
+
+ pCurChar->m_iCharWidth = iCharWidth;
+ if (iCharWidth > 0)
+ m_pCurLine->m_iWidth += iCharWidth;
+}
+
+void CFX_RTFBreak::AppendChar_Tab(CFX_Char* pCurChar) {
+ if (!(m_dwLayoutStyles & FX_LAYOUTSTYLE_ExpandTab))
+ return;
+
+ int32_t& iLineWidth = m_pCurLine->m_iWidth;
+ int32_t iCharWidth = iLineWidth;
+ if (GetPositionedTab(&iCharWidth))
+ iCharWidth -= iLineWidth;
+ else
+ iCharWidth = m_iTabWidth * (iLineWidth / m_iTabWidth + 1) - iLineWidth;
+
+ pCurChar->m_iCharWidth = iCharWidth;
+ iLineWidth += iCharWidth;
+}
+
+CFX_BreakType CFX_RTFBreak::AppendChar_Control(CFX_Char* pCurChar) {
+ CFX_BreakType dwRet2 = CFX_BreakType::None;
+ switch (pCurChar->m_wCharCode) {
+ case L'\v':
+ case 0x2028:
+ dwRet2 = CFX_BreakType::Line;
+ break;
+ case L'\f':
+ dwRet2 = CFX_BreakType::Page;
+ break;
+ case 0x2029:
+ dwRet2 = CFX_BreakType::Paragraph;
+ break;
+ default:
+ if (pCurChar->m_wCharCode == m_wParagraphBreakChar)
+ dwRet2 = CFX_BreakType::Paragraph;
+ break;
+ }
+ if (dwRet2 != CFX_BreakType::None)
+ dwRet2 = EndBreak(dwRet2);
+
+ return dwRet2;
+}
+
+CFX_BreakType CFX_RTFBreak::AppendChar_Arabic(CFX_Char* pCurChar) {
+ CFX_Char* pLastChar = nullptr;
+ int32_t iCharWidth = 0;
+ wchar_t wForm;
+ bool bAlef = false;
+ if (m_eCharType >= FX_CHARTYPE_ArabicAlef &&
+ m_eCharType <= FX_CHARTYPE_ArabicDistortion) {
+ pLastChar = GetLastChar(1, false, true);
+ if (pLastChar) {
+ m_pCurLine->m_iWidth -= pLastChar->m_iCharWidth;
+ CFX_Char* pPrevChar = GetLastChar(2, false, true);
+ wForm = pdfium::arabic::GetFormChar(pLastChar, pPrevChar, pCurChar);
+ bAlef = (wForm == 0xFEFF &&
+ pLastChar->GetCharType() == FX_CHARTYPE_ArabicAlef);
+ if (!m_pFont->GetCharWidth(wForm, iCharWidth, false) &&
+ !m_pFont->GetCharWidth(pLastChar->m_wCharCode, iCharWidth, false)) {
+ iCharWidth = m_iDefChar;
+ }
+
+ iCharWidth *= m_iFontSize;
+ iCharWidth = iCharWidth * m_iHorizontalScale / 100;
+ pLastChar->m_iCharWidth = iCharWidth;
+ m_pCurLine->m_iWidth += iCharWidth;
+ iCharWidth = 0;
+ }
+ }
+
+ wForm = pdfium::arabic::GetFormChar(pCurChar, bAlef ? nullptr : pLastChar,
+ nullptr);
+ if (!m_pFont->GetCharWidth(wForm, iCharWidth, false) &&
+ !m_pFont->GetCharWidth(pCurChar->m_wCharCode, iCharWidth, false)) {
+ iCharWidth = m_iDefChar;
+ }
+
+ iCharWidth *= m_iFontSize;
+ iCharWidth = iCharWidth * m_iHorizontalScale / 100;
+ pCurChar->m_iCharWidth = iCharWidth;
+ m_pCurLine->m_iWidth += iCharWidth;
+ m_pCurLine->m_iArabicChars++;
+
+ if (m_pCurLine->GetLineEnd() > m_iLineWidth + m_iTolerance)
+ return EndBreak(CFX_BreakType::Line);
+ return CFX_BreakType::None;
+}
+
+CFX_BreakType CFX_RTFBreak::AppendChar_Others(CFX_Char* pCurChar) {
+ FX_CHARTYPE chartype = pCurChar->GetCharType();
+ wchar_t wForm = pCurChar->m_wCharCode;
+ int32_t iCharWidth = 0;
+ if (!m_pFont->GetCharWidth(wForm, iCharWidth, false))
+ iCharWidth = m_iDefChar;
+
+ iCharWidth *= m_iFontSize;
+ iCharWidth *= m_iHorizontalScale / 100;
+ iCharWidth += m_iCharSpace;
+
+ pCurChar->m_iCharWidth = iCharWidth;
+ m_pCurLine->m_iWidth += iCharWidth;
+ if (chartype != FX_CHARTYPE_Space &&
+ m_pCurLine->GetLineEnd() > m_iLineWidth + m_iTolerance) {
+ return EndBreak(CFX_BreakType::Line);
+ }
+ return CFX_BreakType::None;
+}
+
+CFX_BreakType CFX_RTFBreak::EndBreak(CFX_BreakType dwStatus) {
+ ASSERT(dwStatus != CFX_BreakType::None);
+
+ ++m_dwIdentity;
+ if (!m_pCurLine->m_LinePieces.empty()) {
+ if (dwStatus != CFX_BreakType::Piece)
+ m_pCurLine->m_LinePieces.back().m_dwStatus = dwStatus;
+ return m_pCurLine->m_LinePieces.back().m_dwStatus;
+ }
+
+ if (HasLine()) {
+ if (!m_Line[m_iReadyLineIndex].m_LinePieces.empty()) {
+ if (dwStatus != CFX_BreakType::Piece)
+ m_Line[m_iReadyLineIndex].m_LinePieces.back().m_dwStatus = dwStatus;
+ return m_Line[m_iReadyLineIndex].m_LinePieces.back().m_dwStatus;
+ }
+ return CFX_BreakType::None;
+ }
+
+ int32_t iCount = m_pCurLine->CountChars();
+ if (iCount < 1)
+ return CFX_BreakType::None;
+
+ CFX_Char* tc = m_pCurLine->GetChar(iCount - 1);
+ tc->m_dwStatus = dwStatus;
+ if (dwStatus == CFX_BreakType::Piece)
+ return dwStatus;
+
+ m_iReadyLineIndex = m_pCurLine == &m_Line[0] ? 0 : 1;
+ CFX_BreakLine* pNextLine = &m_Line[1 - m_iReadyLineIndex];
+ bool bAllChars = m_iAlignment == CFX_RTFLineAlignment::Justified ||
+ m_iAlignment == CFX_RTFLineAlignment::Distributed;
+
+ if (!EndBreak_SplitLine(pNextLine, bAllChars, dwStatus)) {
+ std::deque<FX_TPO> tpos;
+ EndBreak_BidiLine(&tpos, dwStatus);
+ if (!m_bPagination && m_iAlignment != CFX_RTFLineAlignment::Left)
+ EndBreak_Alignment(tpos, bAllChars, dwStatus);
+ }
+ m_pCurLine = pNextLine;
+ m_pCurLine->m_iStart = m_iLineStart;
+
+ CFX_Char* pTC = GetLastChar(0, false, true);
+ m_eCharType = pTC ? pTC->GetCharType() : FX_CHARTYPE_Unknown;
+ return dwStatus;
+}
+
+bool CFX_RTFBreak::EndBreak_SplitLine(CFX_BreakLine* pNextLine,
+ bool bAllChars,
+ CFX_BreakType dwStatus) {
+ bool bDone = false;
+ if (m_pCurLine->GetLineEnd() > m_iLineWidth + m_iTolerance) {
+ const CFX_Char* tc = m_pCurLine->GetChar(m_pCurLine->CountChars() - 1);
+ switch (tc->GetCharType()) {
+ case FX_CHARTYPE_Tab:
+ case FX_CHARTYPE_Control:
+ case FX_CHARTYPE_Space:
+ break;
+ default:
+ SplitTextLine(m_pCurLine, pNextLine, !m_bPagination && bAllChars);
+ bDone = true;
+ break;
+ }
+ }
+
+ if (!m_bPagination) {
+ if (bAllChars && !bDone) {
+ int32_t endPos = m_pCurLine->GetLineEnd();
+ GetBreakPos(m_pCurLine->m_LineChars, endPos, bAllChars, true);
+ }
+ return false;
+ }
+
+ const CFX_Char* pCurChars = m_pCurLine->m_LineChars.data();
+ CFX_BreakPiece tp;
+ tp.m_pChars = &m_pCurLine->m_LineChars;
+ bool bNew = true;
+ uint32_t dwIdentity = static_cast<uint32_t>(-1);
+ int32_t iLast = m_pCurLine->CountChars() - 1;
+ int32_t j = 0;
+ for (int32_t i = 0; i <= iLast;) {
+ const CFX_Char* pTC = pCurChars + i;
+ if (bNew) {
+ tp.m_iStartChar = i;
+ tp.m_iStartPos += tp.m_iWidth;
+ tp.m_iWidth = 0;
+ tp.m_dwStatus = pTC->m_dwStatus;
+ tp.m_iFontSize = pTC->m_iFontSize;
+ tp.m_iHorizontalScale = pTC->m_iHorizontalScale;
+ tp.m_iVerticalScale = pTC->m_iVerticalScale;
+ dwIdentity = pTC->m_dwIdentity;
+ tp.m_dwIdentity = dwIdentity;
+ tp.m_pUserData = pTC->m_pUserData;
+ j = i;
+ bNew = false;
+ }
+
+ if (i == iLast || pTC->m_dwStatus != CFX_BreakType::None ||
+ pTC->m_dwIdentity != dwIdentity) {
+ tp.m_iChars = i - j;
+ if (pTC->m_dwIdentity == dwIdentity) {
+ tp.m_dwStatus = pTC->m_dwStatus;
+ tp.m_iWidth += pTC->m_iCharWidth;
+ tp.m_iChars += 1;
+ ++i;
+ }
+ m_pCurLine->m_LinePieces.push_back(tp);
+ bNew = true;
+ } else {
+ tp.m_iWidth += pTC->m_iCharWidth;
+ ++i;
+ }
+ }
+ return true;
+}
+
+void CFX_RTFBreak::EndBreak_BidiLine(std::deque<FX_TPO>* tpos,
+ CFX_BreakType dwStatus) {
+ CFX_Char* pTC;
+ std::vector<CFX_Char>& chars = m_pCurLine->m_LineChars;
+ int32_t iCount = m_pCurLine->CountChars();
+ if (!m_bPagination && m_pCurLine->m_iArabicChars > 0) {
+ int32_t iBidiNum = 0;
+ for (int32_t i = 0; i < iCount; ++i) {
+ pTC = &chars[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);
+ } else {
+ for (int32_t i = 0; i < iCount; ++i) {
+ pTC = &chars[i];
+ pTC->m_iBidiLevel = 0;
+ pTC->m_iBidiPos = 0;
+ pTC->m_iBidiOrder = 0;
+ }
+ }
+
+ CFX_BreakPiece tp;
+ tp.m_dwStatus = CFX_BreakType::Piece;
+ tp.m_iStartPos = m_pCurLine->m_iStart;
+ tp.m_pChars = &chars;
+
+ int32_t iBidiLevel = -1;
+ int32_t iCharWidth;
+ FX_TPO tpo;
+ uint32_t dwIdentity = static_cast<uint32_t>(-1);
+ int32_t i = 0;
+ int32_t j = 0;
+ while (i < iCount) {
+ pTC = &chars[i];
+ if (iBidiLevel < 0) {
+ iBidiLevel = pTC->m_iBidiLevel;
+ iCharWidth = pTC->m_iCharWidth;
+ tp.m_iWidth = iCharWidth < 1 ? 0 : iCharWidth;
+ tp.m_iBidiLevel = iBidiLevel;
+ tp.m_iBidiPos = pTC->m_iBidiOrder;
+ tp.m_iFontSize = pTC->m_iFontSize;
+ tp.m_iHorizontalScale = pTC->m_iHorizontalScale;
+ tp.m_iVerticalScale = pTC->m_iVerticalScale;
+ dwIdentity = pTC->m_dwIdentity;
+ tp.m_dwIdentity = dwIdentity;
+ tp.m_pUserData = pTC->m_pUserData;
+ tp.m_dwStatus = CFX_BreakType::Piece;
+ ++i;
+ } else if (iBidiLevel != pTC->m_iBidiLevel ||
+ pTC->m_dwIdentity != dwIdentity) {
+ tp.m_iChars = i - tp.m_iStartChar;
+ m_pCurLine->m_LinePieces.push_back(tp);
+
+ tp.m_iStartPos += tp.m_iWidth;
+ tp.m_iStartChar = i;
+ tpo.index = j++;
+ tpo.pos = tp.m_iBidiPos;
+ tpos->push_back(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;
+ m_pCurLine->m_LinePieces.push_back(tp);
+
+ tpo.index = j;
+ tpo.pos = tp.m_iBidiPos;
+ tpos->push_back(tpo);
+ }
+
+ std::sort(tpos->begin(), tpos->end());
+ int32_t iStartPos = m_pCurLine->m_iStart;
+ for (const auto& it : *tpos) {
+ CFX_BreakPiece& ttp = m_pCurLine->m_LinePieces[it.index];
+ ttp.m_iStartPos = iStartPos;
+ iStartPos += ttp.m_iWidth;
+ }
+}
+
+void CFX_RTFBreak::EndBreak_Alignment(const std::deque<FX_TPO>& tpos,
+ bool bAllChars,
+ CFX_BreakType dwStatus) {
+ int32_t iNetWidth = m_pCurLine->m_iWidth;
+ int32_t iGapChars = 0;
+ bool bFind = false;
+ for (auto it = tpos.rbegin(); it != tpos.rend(); it++) {
+ CFX_BreakPiece& ttp = m_pCurLine->m_LinePieces[it->index];
+ if (!bFind)
+ iNetWidth = ttp.GetEndPos();
+
+ bool bArabic = FX_IsOdd(ttp.m_iBidiLevel);
+ int32_t j = bArabic ? 0 : ttp.m_iChars - 1;
+ while (j > -1 && j < ttp.m_iChars) {
+ const CFX_Char* tc = ttp.GetChar(j);
+ if (tc->m_nBreakType == FX_LBT_DIRECT_BRK)
+ ++iGapChars;
+
+ if (!bFind || !bAllChars) {
+ uint32_t dwCharType = tc->GetCharType();
+ if (dwCharType == FX_CHARTYPE_Space ||
+ dwCharType == FX_CHARTYPE_Control) {
+ if (!bFind) {
+ int32_t iCharWidth = tc->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;
+ if (iGapChars > 0 && (m_iAlignment == CFX_RTFLineAlignment::Distributed ||
+ (m_iAlignment == CFX_RTFLineAlignment::Justified &&
+ dwStatus != CFX_BreakType::Paragraph))) {
+ int32_t iStart = -1;
+ for (const auto& tpo : tpos) {
+ CFX_BreakPiece& ttp = m_pCurLine->m_LinePieces[tpo.index];
+ if (iStart < 0)
+ iStart = ttp.m_iStartPos;
+ else
+ ttp.m_iStartPos = iStart;
+
+ for (int32_t j = 0; j < ttp.m_iChars; ++j) {
+ CFX_Char* tc = ttp.GetChar(j);
+ if (tc->m_nBreakType != FX_LBT_DIRECT_BRK || tc->m_iCharWidth < 0)
+ continue;
+
+ int32_t k = iOffset / iGapChars;
+ tc->m_iCharWidth += k;
+ ttp.m_iWidth += k;
+ iOffset -= k;
+ --iGapChars;
+ if (iGapChars < 1)
+ break;
+ }
+ iStart += ttp.m_iWidth;
+ }
+ } else if (m_iAlignment == CFX_RTFLineAlignment::Right ||
+ m_iAlignment == CFX_RTFLineAlignment::Center) {
+ if (m_iAlignment == CFX_RTFLineAlignment::Center)
+ iOffset /= 2;
+ if (iOffset > 0) {
+ for (auto& ttp : m_pCurLine->m_LinePieces)
+ ttp.m_iStartPos += iOffset;
+ }
+ }
+}
+
+int32_t CFX_RTFBreak::GetBreakPos(std::vector<CFX_Char>& tca,
+ int32_t& iEndPos,
+ bool bAllChars,
+ bool bOnlyBrk) {
+ int32_t iLength = pdfium::CollectionSize<int32_t>(tca) - 1;
+ if (iLength < 1)
+ return iLength;
+
+ int32_t iBreak = -1;
+ int32_t iBreakPos = -1;
+ int32_t iIndirect = -1;
+ int32_t iIndirectPos = -1;
+ int32_t iLast = -1;
+ int32_t iLastPos = -1;
+ if (iEndPos <= m_iLineWidth) {
+ if (!bAllChars)
+ return iLength;
+
+ iBreak = iLength;
+ iBreakPos = iEndPos;
+ }
+
+ CFX_Char* pCharArray = tca.data();
+ CFX_Char* pCur = pCharArray + iLength;
+ --iLength;
+ if (bAllChars)
+ pCur->m_nBreakType = FX_LBT_UNKNOWN;
+
+ uint32_t nCodeProp = pCur->m_dwCharProps;
+ uint32_t nNext = nCodeProp & 0x003F;
+ int32_t iCharWidth = pCur->m_iCharWidth;
+ if (iCharWidth > 0)
+ iEndPos -= iCharWidth;
+
+ while (iLength >= 0) {
+ pCur = pCharArray + iLength;
+ nCodeProp = pCur->m_dwCharProps;
+ uint32_t nCur = nCodeProp & 0x003F;
+ bool bNeedBreak = false;
+ FX_LINEBREAKTYPE eType;
+ if (nCur == FX_CBP_TB) {
+ bNeedBreak = true;
+ eType = nNext == FX_CBP_TB ? FX_LBT_PROHIBITED_BRK
+ : gs_FX_LineBreak_PairTable[nCur][nNext];
+ } else {
+ if (nCur == FX_CBP_SP)
+ bNeedBreak = true;
+
+ eType = nNext == FX_CBP_SP ? FX_LBT_PROHIBITED_BRK
+ : gs_FX_LineBreak_PairTable[nCur][nNext];
+ }
+ if (bAllChars)
+ pCur->m_nBreakType = eType;
+
+ if (!bOnlyBrk) {
+ iCharWidth = pCur->m_iCharWidth;
+ if (iEndPos <= m_iLineWidth || bNeedBreak) {
+ 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;
+ }
+ }
+ 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_RTFBreak::SplitTextLine(CFX_BreakLine* pCurLine,
+ CFX_BreakLine* pNextLine,
+ bool bAllChars) {
+ ASSERT(pCurLine && pNextLine);
+ int32_t iCount = pCurLine->CountChars();
+ if (iCount < 2)
+ return;
+
+ int32_t iEndPos = pCurLine->GetLineEnd();
+ std::vector<CFX_Char>& curChars = pCurLine->m_LineChars;
+ int32_t iCharPos = GetBreakPos(curChars, iEndPos, bAllChars, false);
+ if (iCharPos < 0)
+ iCharPos = 0;
+
+ ++iCharPos;
+ if (iCharPos >= iCount) {
+ pNextLine->Clear();
+ curChars[iCharPos - 1].m_nBreakType = FX_LBT_UNKNOWN;
+ return;
+ }
+
+ pNextLine->m_LineChars =
+ std::vector<CFX_Char>(curChars.begin() + iCharPos, curChars.end());
+ curChars.erase(curChars.begin() + iCharPos, curChars.end());
+ pNextLine->m_iStart = pCurLine->m_iStart;
+ pNextLine->m_iWidth = pCurLine->GetLineEnd() - iEndPos;
+ pCurLine->m_iWidth = iEndPos;
+ curChars[iCharPos - 1].m_nBreakType = FX_LBT_UNKNOWN;
+
+ for (size_t i = 0; i < pNextLine->m_LineChars.size(); ++i) {
+ if (pNextLine->m_LineChars[i].GetCharType() >= FX_CHARTYPE_ArabicAlef) {
+ pCurLine->m_iArabicChars--;
+ pNextLine->m_iArabicChars++;
+ }
+ pNextLine->m_LineChars[i].m_dwStatus = CFX_BreakType::None;
+ }
+}
+
+int32_t CFX_RTFBreak::GetDisplayPos(const FX_RTFTEXTOBJ* pText,
+ FXTEXT_CHARPOS* pCharPos,
+ bool bCharCode) const {
+ if (!pText || pText->iLength < 1)
+ return 0;
+
+ ASSERT(pText->pFont && pText->pRect);
+
+ CFX_RetainPtr<CFGAS_GEFont> pFont = pText->pFont;
+ CFX_RectF rtText(*pText->pRect);
+ bool bRTLPiece = FX_IsOdd(pText->iBidiLevel);
+ float fFontSize = pText->fFontSize;
+ int32_t iFontSize = FXSYS_round(fFontSize * 20.0f);
+ int32_t iAscent = pFont->GetAscent();
+ int32_t iDescent = pFont->GetDescent();
+ int32_t iMaxHeight = iAscent - iDescent;
+ float fFontHeight = fFontSize;
+ float fAscent = fFontHeight * static_cast<float>(iAscent) /
+ static_cast<float>(iMaxHeight);
+ wchar_t wPrev = 0xFEFF;
+ wchar_t wNext;
+ float fX = rtText.left;
+ int32_t iHorScale = pText->iHorizontalScale;
+ int32_t iVerScale = pText->iVerticalScale;
+ if (bRTLPiece)
+ fX = rtText.right();
+
+ float fY = rtText.top + fAscent;
+ int32_t iCount = 0;
+ for (int32_t i = 0; i < pText->iLength; ++i) {
+ wchar_t wch = pText->pStr[i];
+ int32_t iWidth = pText->pWidths[i];
+ uint32_t dwProps = FX_GetUnicodeProperties(wch);
+ uint32_t dwCharType = (dwProps & FX_CHARTYPEBITSMASK);
+ if (iWidth == 0) {
+ if (dwCharType == FX_CHARTYPE_ArabicAlef)
+ wPrev = 0xFEFF;
+ continue;
+ }
+
+ int32_t iCharWidth = abs(iWidth);
+ bool bEmptyChar =
+ (dwCharType >= FX_CHARTYPE_Tab && dwCharType <= FX_CHARTYPE_Control);
+ if (!bEmptyChar)
+ ++iCount;
+
+ if (pCharPos) {
+ iCharWidth /= iFontSize;
+ wchar_t wForm = wch;
+ if (dwCharType >= FX_CHARTYPE_ArabicAlef) {
+ if (i + 1 < pText->iLength) {
+ wNext = pText->pStr[i + 1];
+ if (pText->pWidths[i + 1] < 0 && i + 2 < pText->iLength)
+ wNext = pText->pStr[i + 2];
+ } else {
+ wNext = 0xFEFF;
+ }
+ wForm = pdfium::arabic::GetFormChar(wch, wPrev, wNext);
+ } else if (bRTLPiece) {
+ wForm = FX_GetMirrorChar(wch, dwProps, bRTLPiece, false);
+ }
+ dwProps = FX_GetUnicodeProperties(wForm);
+
+ if (!bEmptyChar) {
+ if (bCharCode) {
+ pCharPos->m_GlyphIndex = wch;
+ } else {
+ pCharPos->m_GlyphIndex = pFont->GetGlyphIndex(wForm, false);
+ if (pCharPos->m_GlyphIndex == 0xFFFF)
+ pCharPos->m_GlyphIndex = pFont->GetGlyphIndex(wch, false);
+ }
+#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
+ pCharPos->m_ExtGID = pCharPos->m_GlyphIndex;
+#endif
+ pCharPos->m_FontCharWidth = iCharWidth;
+ }
+
+ float fCharWidth = fFontSize * iCharWidth / 1000.0f;
+ if (bRTLPiece && dwCharType != FX_CHARTYPE_Combination)
+ fX -= fCharWidth;
+
+ if (!bEmptyChar)
+ pCharPos->m_Origin = CFX_PointF(fX, fY);
+ if (!bRTLPiece && dwCharType != FX_CHARTYPE_Combination)
+ fX += fCharWidth;
+
+ if (!bEmptyChar) {
+ pCharPos->m_bGlyphAdjust = true;
+ pCharPos->m_AdjustMatrix[0] = -1;
+ pCharPos->m_AdjustMatrix[1] = 0;
+ pCharPos->m_AdjustMatrix[2] = 0;
+ pCharPos->m_AdjustMatrix[3] = 1;
+ pCharPos->m_Origin.y += fAscent * iVerScale / 100.0f;
+ pCharPos->m_Origin.y -= 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 = wch;
+ }
+ return iCount;
+}
+
+FX_RTFTEXTOBJ::FX_RTFTEXTOBJ()
+ : pFont(nullptr),
+ pRect(nullptr),
+ wLineBreakChar(L'\n'),
+ fFontSize(12.0f),
+ iLength(0),
+ iBidiLevel(0),
+ iHorizontalScale(100),
+ iVerticalScale(100) {}
+
+FX_RTFTEXTOBJ::~FX_RTFTEXTOBJ() {}