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-rw-r--r--xfa/fde/cfde_textout.cpp790
1 files changed, 790 insertions, 0 deletions
diff --git a/xfa/fde/cfde_textout.cpp b/xfa/fde/cfde_textout.cpp
new file mode 100644
index 0000000000..b85bfef3f6
--- /dev/null
+++ b/xfa/fde/cfde_textout.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/fde/cfde_textout.h"
+
+#include <algorithm>
+
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxcrt/fx_system.h"
+#include "third_party/base/ptr_util.h"
+#include "third_party/base/stl_util.h"
+#include "xfa/fde/cfde_brush.h"
+#include "xfa/fde/cfde_path.h"
+#include "xfa/fde/cfde_pen.h"
+#include "xfa/fde/cfde_renderdevice.h"
+#include "xfa/fgas/layout/fgas_textbreak.h"
+
+FDE_TTOPIECE::FDE_TTOPIECE() = default;
+
+FDE_TTOPIECE::FDE_TTOPIECE(const FDE_TTOPIECE& that) = default;
+
+FDE_TTOPIECE::~FDE_TTOPIECE() = default;
+
+CFDE_TextOut::CFDE_TextOut()
+ : m_pTxtBreak(pdfium::MakeUnique<CFX_TxtBreak>()),
+ m_pFont(nullptr),
+ m_fFontSize(12.0f),
+ m_fLineSpace(m_fFontSize),
+ m_fLinePos(0.0f),
+ m_fTolerance(0.0f),
+ m_iAlignment(0),
+ m_iTxtBkAlignment(0),
+ m_wParagraphBkChar(L'\n'),
+ m_TxtColor(0xFF000000),
+ m_dwStyles(0),
+ m_dwTxtBkStyles(0),
+ m_bElliChanged(false),
+ m_iEllipsisWidth(0),
+ m_ttoLines(5),
+ m_iCurLine(0),
+ m_iCurPiece(0),
+ m_iTotalLines(0) {
+ m_Matrix.SetIdentity();
+ m_rtClip.Reset();
+ m_rtLogicClip.Reset();
+}
+
+CFDE_TextOut::~CFDE_TextOut() {}
+
+void CFDE_TextOut::SetFont(const CFX_RetainPtr<CFGAS_GEFont>& pFont) {
+ ASSERT(pFont);
+ m_pFont = pFont;
+ m_pTxtBreak->SetFont(pFont);
+}
+
+void CFDE_TextOut::SetFontSize(float fFontSize) {
+ ASSERT(fFontSize > 0);
+ m_fFontSize = fFontSize;
+ m_pTxtBreak->SetFontSize(fFontSize);
+}
+
+void CFDE_TextOut::SetTextColor(FX_ARGB color) {
+ m_TxtColor = color;
+}
+
+void CFDE_TextOut::SetStyles(uint32_t dwStyles) {
+ m_dwStyles = dwStyles;
+ m_dwTxtBkStyles = 0;
+ if (dwStyles & FDE_TTOSTYLE_SingleLine)
+ m_dwTxtBkStyles |= FX_LAYOUTSTYLE_SingleLine;
+
+ m_pTxtBreak->SetLayoutStyles(m_dwTxtBkStyles);
+}
+
+void CFDE_TextOut::SetTabWidth(float fTabWidth) {
+ ASSERT(fTabWidth > 1.0f);
+ m_pTxtBreak->SetTabWidth(fTabWidth);
+}
+
+void CFDE_TextOut::SetEllipsisString(const CFX_WideString& wsEllipsis) {
+ m_bElliChanged = true;
+ m_wsEllipsis = wsEllipsis;
+}
+
+void CFDE_TextOut::SetParagraphBreakChar(wchar_t wch) {
+ m_wParagraphBkChar = wch;
+ m_pTxtBreak->SetParagraphBreakChar(wch);
+}
+
+void CFDE_TextOut::SetAlignment(int32_t iAlignment) {
+ m_iAlignment = iAlignment;
+ switch (m_iAlignment) {
+ case FDE_TTOALIGNMENT_TopCenter:
+ case FDE_TTOALIGNMENT_Center:
+ case FDE_TTOALIGNMENT_BottomCenter:
+ m_iTxtBkAlignment = CFX_TxtLineAlignment_Center;
+ break;
+ case FDE_TTOALIGNMENT_TopRight:
+ case FDE_TTOALIGNMENT_CenterRight:
+ case FDE_TTOALIGNMENT_BottomRight:
+ m_iTxtBkAlignment = CFX_TxtLineAlignment_Right;
+ break;
+ default:
+ m_iTxtBkAlignment = CFX_TxtLineAlignment_Left;
+ break;
+ }
+ m_pTxtBreak->SetAlignment(m_iTxtBkAlignment);
+}
+
+void CFDE_TextOut::SetLineSpace(float fLineSpace) {
+ ASSERT(fLineSpace > 1.0f);
+ m_fLineSpace = fLineSpace;
+}
+
+void CFDE_TextOut::SetDIBitmap(const CFX_RetainPtr<CFX_DIBitmap>& pDIB) {
+ ASSERT(pDIB);
+
+ m_pRenderDevice.reset();
+ CFX_FxgeDevice* device = new CFX_FxgeDevice;
+ device->Attach(pDIB, false, nullptr, false);
+ m_pRenderDevice = pdfium::MakeUnique<CFDE_RenderDevice>(device, false);
+}
+
+void CFDE_TextOut::SetRenderDevice(CFX_RenderDevice* pDevice) {
+ ASSERT(pDevice);
+ m_pRenderDevice = pdfium::MakeUnique<CFDE_RenderDevice>(pDevice, false);
+}
+
+void CFDE_TextOut::SetClipRect(const CFX_Rect& rtClip) {
+ m_rtClip = rtClip.As<float>();
+}
+
+void CFDE_TextOut::SetClipRect(const CFX_RectF& rtClip) {
+ m_rtClip = rtClip;
+}
+
+void CFDE_TextOut::SetLogicClipRect(const CFX_RectF& rtClip) {
+ m_rtLogicClip = rtClip;
+}
+
+void CFDE_TextOut::SetMatrix(const CFX_Matrix& matrix) {
+ m_Matrix = matrix;
+}
+
+void CFDE_TextOut::SetLineBreakTolerance(float fTolerance) {
+ m_fTolerance = fTolerance;
+ m_pTxtBreak->SetLineBreakTolerance(m_fTolerance);
+}
+
+int32_t CFDE_TextOut::GetTotalLines() {
+ return m_iTotalLines;
+}
+
+void CFDE_TextOut::CalcLogicSize(const wchar_t* pwsStr,
+ int32_t iLength,
+ CFX_SizeF& size) {
+ CFX_RectF rtText(0.0f, 0.0f, size.width, size.height);
+ CalcLogicSize(pwsStr, iLength, rtText);
+ size = rtText.Size();
+}
+
+void CFDE_TextOut::CalcLogicSize(const wchar_t* pwsStr,
+ int32_t iLength,
+ CFX_RectF& rect) {
+ if (!pwsStr || iLength < 1) {
+ rect.width = 0.0f;
+ rect.height = 0.0f;
+ } else {
+ CalcTextSize(pwsStr, iLength, rect);
+ }
+}
+
+void CFDE_TextOut::CalcTextSize(const wchar_t* pwsStr,
+ int32_t iLength,
+ CFX_RectF& rect) {
+ ASSERT(m_pFont && m_fFontSize >= 1.0f);
+ SetLineWidth(rect);
+ m_iTotalLines = 0;
+ const wchar_t* pStr = pwsStr;
+ bool bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
+ float fWidth = 0.0f;
+ float fHeight = 0.0f;
+ float fStartPos = rect.right();
+ CFX_BreakType dwBreakStatus = CFX_BreakType::None;
+ wchar_t wPreChar = 0;
+ wchar_t wch;
+ wchar_t wBreak = 0;
+ while (iLength-- > 0) {
+ wch = *pStr++;
+ if (wBreak == 0 && (wch == L'\n' || wch == L'\r')) {
+ wBreak = wch;
+ m_pTxtBreak->SetParagraphBreakChar(wch);
+ }
+ if (bHotKey && wch == L'&' && wPreChar != L'&') {
+ wPreChar = wch;
+ continue;
+ }
+ dwBreakStatus = m_pTxtBreak->AppendChar(wch);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrieveLineWidth(dwBreakStatus, fStartPos, fWidth, fHeight);
+
+ wPreChar = 0;
+ }
+ dwBreakStatus = m_pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrieveLineWidth(dwBreakStatus, fStartPos, fWidth, fHeight);
+
+ m_pTxtBreak->Reset();
+ float fInc = rect.Height() - fHeight;
+ if (m_iAlignment >= FDE_TTOALIGNMENT_CenterLeft &&
+ m_iAlignment < FDE_TTOALIGNMENT_BottomLeft) {
+ fInc /= 2.0f;
+ } else if (m_iAlignment < FDE_TTOALIGNMENT_CenterLeft) {
+ fInc = 0.0f;
+ }
+ rect.left += fStartPos;
+ rect.top += fInc;
+ rect.width = std::min(fWidth, rect.Width());
+ rect.height = fHeight;
+ if (m_dwStyles & FDE_TTOSTYLE_LastLineHeight)
+ rect.height -= m_fLineSpace - m_fFontSize;
+}
+
+void CFDE_TextOut::SetLineWidth(CFX_RectF& rect) {
+ if ((m_dwStyles & FDE_TTOSTYLE_SingleLine) == 0) {
+ float fLineWidth = 0.0f;
+ if (rect.Width() < 1.0f)
+ rect.width = m_fFontSize * 1000.0f;
+
+ fLineWidth = rect.Width();
+ m_pTxtBreak->SetLineWidth(fLineWidth);
+ }
+}
+
+bool CFDE_TextOut::RetrieveLineWidth(CFX_BreakType dwBreakStatus,
+ float& fStartPos,
+ float& fWidth,
+ float& fHeight) {
+ if (CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ return false;
+
+ float fLineStep = (m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
+ bool bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
+ float fLineWidth = 0.0f;
+ int32_t iCount = m_pTxtBreak->CountBreakPieces();
+ for (int32_t i = 0; i < iCount; i++) {
+ const CFX_BreakPiece* pPiece = m_pTxtBreak->GetBreakPieceUnstable(i);
+ fLineWidth += static_cast<float>(pPiece->m_iWidth) / 20000.0f;
+ fStartPos =
+ std::min(fStartPos, static_cast<float>(pPiece->m_iStartPos) / 20000.0f);
+ }
+ m_pTxtBreak->ClearBreakPieces();
+ if (dwBreakStatus == CFX_BreakType::Paragraph) {
+ m_pTxtBreak->Reset();
+ }
+ if (!bLineWrap && dwBreakStatus == CFX_BreakType::Line) {
+ fWidth += fLineWidth;
+ } else {
+ fWidth = std::max(fWidth, fLineWidth);
+ fHeight += fLineStep;
+ }
+ m_iTotalLines++;
+ return true;
+}
+
+void CFDE_TextOut::DrawText(const wchar_t* pwsStr,
+ int32_t iLength,
+ int32_t x,
+ int32_t y) {
+ CFX_RectF rtText(static_cast<float>(x), static_cast<float>(y),
+ m_fFontSize * 1000.0f, m_fFontSize * 1000.0f);
+ DrawText(pwsStr, iLength, rtText);
+}
+
+void CFDE_TextOut::DrawText(const wchar_t* pwsStr,
+ int32_t iLength,
+ float x,
+ float y) {
+ DrawText(pwsStr, iLength,
+ CFX_RectF(x, y, m_fFontSize * 1000.0f, m_fFontSize * 1000.0f));
+}
+
+void CFDE_TextOut::DrawText(const wchar_t* pwsStr,
+ int32_t iLength,
+ const CFX_Rect& rect) {
+ DrawText(pwsStr, iLength, rect.As<float>());
+}
+
+void CFDE_TextOut::DrawText(const wchar_t* pwsStr,
+ int32_t iLength,
+ const CFX_RectF& rect) {
+ CFX_RectF rtText(rect.left, rect.top, rect.width, rect.height);
+ CFX_Matrix rm;
+ rm.SetReverse(m_Matrix);
+ rm.TransformRect(rtText);
+ DrawText(pwsStr, iLength, rtText, m_rtClip);
+}
+
+void CFDE_TextOut::DrawLogicText(const wchar_t* pwsStr,
+ int32_t iLength,
+ float x,
+ float y) {
+ CFX_RectF rtText(x, y, m_fFontSize * 1000.0f, m_fFontSize * 1000.0f);
+ DrawLogicText(pwsStr, iLength, rtText);
+}
+
+void CFDE_TextOut::DrawLogicText(const wchar_t* pwsStr,
+ int32_t iLength,
+ const CFX_RectF& rect) {
+ CFX_RectF rtClip(m_rtLogicClip.left, m_rtLogicClip.top, m_rtLogicClip.width,
+ m_rtLogicClip.height);
+ m_Matrix.TransformRect(rtClip);
+ DrawText(pwsStr, iLength, rect, rtClip);
+}
+
+void CFDE_TextOut::DrawText(const wchar_t* pwsStr,
+ int32_t iLength,
+ const CFX_RectF& rect,
+ const CFX_RectF& rtClip) {
+ ASSERT(m_pFont && m_fFontSize >= 1.0f);
+ if (!pwsStr || iLength < 1)
+ return;
+ if (rect.width < m_fFontSize || rect.height < m_fFontSize)
+ return;
+
+ float fLineWidth = rect.width;
+ m_pTxtBreak->SetLineWidth(fLineWidth);
+ m_ttoLines.clear();
+ m_wsText.clear();
+ LoadText(pwsStr, iLength, rect);
+ if (m_dwStyles & FDE_TTOSTYLE_Ellipsis) {
+ ReplaceWidthEllipsis();
+ }
+ Reload(rect);
+ DoAlignment(rect);
+ OnDraw(rtClip);
+}
+
+void CFDE_TextOut::ExpandBuffer(int32_t iSize, int32_t iType) {
+ ASSERT(iSize >= 0);
+ size_t size = iSize;
+ switch (iType) {
+ case 0:
+ if (m_CharWidths.size() < size)
+ m_CharWidths.resize(size, 0);
+ break;
+ case 1:
+ if (m_EllCharWidths.size() < size)
+ m_EllCharWidths.resize(size, 0);
+ break;
+ case 2:
+ if (m_CharPos.size() < size)
+ m_CharPos.resize(size, FXTEXT_CHARPOS());
+ break;
+ }
+}
+
+void CFDE_TextOut::LoadEllipsis() {
+ if (!m_bElliChanged) {
+ return;
+ }
+ m_bElliChanged = false;
+ m_iEllipsisWidth = 0;
+ int32_t iLength = m_wsEllipsis.GetLength();
+ if (iLength < 1) {
+ return;
+ }
+ ExpandBuffer(iLength, 1);
+ const wchar_t* pStr = m_wsEllipsis.c_str();
+ CFX_BreakType dwBreakStatus;
+ wchar_t wch;
+ while (iLength-- > 0) {
+ wch = *pStr++;
+ dwBreakStatus = m_pTxtBreak->AppendChar(wch);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrieveEllPieces(&m_EllCharWidths);
+ }
+ dwBreakStatus = m_pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrieveEllPieces(&m_EllCharWidths);
+
+ m_pTxtBreak->Reset();
+}
+
+void CFDE_TextOut::RetrieveEllPieces(std::vector<int32_t>* pCharWidths) {
+ int32_t iCount = m_pTxtBreak->CountBreakPieces();
+ int32_t iCharIndex = 0;
+ for (int32_t i = 0; i < iCount; i++) {
+ const CFX_BreakPiece* pPiece = m_pTxtBreak->GetBreakPieceUnstable(i);
+ int32_t iPieceChars = pPiece->GetLength();
+ for (int32_t j = 0; j < iPieceChars; j++) {
+ (*pCharWidths)[iCharIndex] =
+ std::max(pPiece->GetChar(j)->m_iCharWidth, 0);
+ m_iEllipsisWidth += (*pCharWidths)[iCharIndex];
+ iCharIndex++;
+ }
+ }
+ m_pTxtBreak->ClearBreakPieces();
+}
+
+void CFDE_TextOut::LoadText(const wchar_t* pwsStr,
+ int32_t iLength,
+ const CFX_RectF& rect) {
+ wchar_t* pStr = m_wsText.GetBuffer(iLength);
+ int32_t iTxtLength = iLength;
+ ExpandBuffer(iTxtLength, 0);
+ bool bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
+ bool bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
+ float fLineStep = (m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
+ float fLineStop = rect.bottom();
+ m_fLinePos = rect.top;
+ m_HotKeys.clear();
+ int32_t iStartChar = 0;
+ int32_t iChars = 0;
+ int32_t iPieceWidths = 0;
+ CFX_BreakType dwBreakStatus;
+ wchar_t wch;
+ bool bRet = false;
+ while (iTxtLength-- > 0) {
+ wch = *pwsStr++;
+ if (bHotKey && wch == L'&' && *(pStr - 1) != L'&') {
+ if (iTxtLength > 0)
+ m_HotKeys.push_back(iChars);
+ continue;
+ }
+ *pStr++ = wch;
+ iChars++;
+ dwBreakStatus = m_pTxtBreak->AppendChar(wch);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus)) {
+ bool bEndofLine =
+ RetrievePieces(dwBreakStatus, iStartChar, iPieceWidths, false, rect);
+ if (bEndofLine &&
+ (bLineWrap || dwBreakStatus == CFX_BreakType::Paragraph ||
+ dwBreakStatus == CFX_BreakType::Page)) {
+ iPieceWidths = 0;
+ m_iCurLine++;
+ m_fLinePos += fLineStep;
+ }
+ if (m_fLinePos + fLineStep > fLineStop) {
+ int32_t iCurLine = bEndofLine ? m_iCurLine - 1 : m_iCurLine;
+ m_ttoLines[iCurLine].SetNewReload(true);
+ bRet = true;
+ break;
+ }
+ }
+ }
+ dwBreakStatus = m_pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus) && !bRet)
+ RetrievePieces(dwBreakStatus, iStartChar, iPieceWidths, false, rect);
+
+ m_pTxtBreak->ClearBreakPieces();
+ m_pTxtBreak->Reset();
+ m_wsText.ReleaseBuffer(iLength);
+}
+
+bool CFDE_TextOut::RetrievePieces(CFX_BreakType dwBreakStatus,
+ int32_t& iStartChar,
+ int32_t& iPieceWidths,
+ bool bReload,
+ const CFX_RectF& rect) {
+ bool bSingleLine = !!(m_dwStyles & FDE_TTOSTYLE_SingleLine);
+ bool bLineWrap = !!(m_dwStyles & FDE_TTOSTYLE_LineWrap);
+ float fLineStep = (m_fLineSpace > m_fFontSize) ? m_fLineSpace : m_fFontSize;
+ bool bNeedReload = false;
+ float fLineWidth = rect.Width();
+ int32_t iLineWidth = FXSYS_round(fLineWidth * 20000.0f);
+ int32_t iCount = m_pTxtBreak->CountBreakPieces();
+ for (int32_t i = 0; i < iCount; i++) {
+ const CFX_BreakPiece* pPiece = m_pTxtBreak->GetBreakPieceUnstable(i);
+ int32_t iPieceChars = pPiece->GetLength();
+ int32_t iChar = iStartChar;
+ int32_t iWidth = 0;
+ int32_t j = 0;
+ for (; j < iPieceChars; j++) {
+ const CFX_Char* pTC = pPiece->GetChar(j);
+ int32_t iCurCharWidth = pTC->m_iCharWidth > 0 ? pTC->m_iCharWidth : 0;
+ if (bSingleLine || !bLineWrap) {
+ if (iLineWidth - iPieceWidths - iWidth < iCurCharWidth) {
+ bNeedReload = true;
+ break;
+ }
+ }
+ iWidth += iCurCharWidth;
+ m_CharWidths[iChar++] = iCurCharWidth;
+ }
+ if (j == 0 && !bReload) {
+ m_ttoLines[m_iCurLine].SetNewReload(true);
+ } else if (j > 0) {
+ CFX_RectF rtPiece;
+ rtPiece.left = rect.left + (float)pPiece->m_iStartPos / 20000.0f;
+ rtPiece.top = m_fLinePos;
+ rtPiece.width = iWidth / 20000.0f;
+ rtPiece.height = fLineStep;
+
+ FDE_TTOPIECE ttoPiece;
+ ttoPiece.iStartChar = iStartChar;
+ ttoPiece.iChars = j;
+ ttoPiece.rtPiece = rtPiece;
+ ttoPiece.dwCharStyles = pPiece->m_dwCharStyles;
+ if (FX_IsOdd(pPiece->m_iBidiLevel)) {
+ ttoPiece.dwCharStyles |= FX_TXTCHARSTYLE_OddBidiLevel;
+ }
+ AppendPiece(ttoPiece, bNeedReload, (bReload && i == iCount - 1));
+ }
+ iStartChar += iPieceChars;
+ iPieceWidths += iWidth;
+ }
+ m_pTxtBreak->ClearBreakPieces();
+ return bSingleLine || bLineWrap || bNeedReload ||
+ dwBreakStatus == CFX_BreakType::Paragraph;
+}
+
+void CFDE_TextOut::AppendPiece(const FDE_TTOPIECE& ttoPiece,
+ bool bNeedReload,
+ bool bEnd) {
+ if (m_iCurLine >= pdfium::CollectionSize<int32_t>(m_ttoLines)) {
+ CFDE_TTOLine ttoLine;
+ ttoLine.SetNewReload(bNeedReload);
+ m_iCurPiece = ttoLine.AddPiece(m_iCurPiece, ttoPiece);
+ m_ttoLines.push_back(ttoLine);
+ m_iCurLine = pdfium::CollectionSize<int32_t>(m_ttoLines) - 1;
+ } else {
+ CFDE_TTOLine* pLine = &m_ttoLines[m_iCurLine];
+ pLine->SetNewReload(bNeedReload);
+ m_iCurPiece = pLine->AddPiece(m_iCurPiece, ttoPiece);
+ if (bEnd) {
+ int32_t iPieces = pLine->GetSize();
+ if (m_iCurPiece < iPieces) {
+ pLine->RemoveLast(iPieces - m_iCurPiece - 1);
+ }
+ }
+ }
+ if (!bEnd && bNeedReload)
+ m_iCurPiece = 0;
+}
+
+void CFDE_TextOut::ReplaceWidthEllipsis() {
+ LoadEllipsis();
+ int32_t iLength = m_wsEllipsis.GetLength();
+ if (iLength < 1)
+ return;
+
+ for (auto& line : m_ttoLines) {
+ if (!line.GetNewReload())
+ continue;
+
+ int32_t iEllipsisCharIndex = iLength - 1;
+ int32_t iCharWidth = 0;
+ int32_t iCharCount = 0;
+ int32_t iPiece = line.GetSize();
+ while (iPiece-- > 0) {
+ FDE_TTOPIECE* pPiece = line.GetPtrAt(iPiece);
+ if (!pPiece)
+ break;
+
+ for (int32_t j = pPiece->iChars - 1; j >= 0; j--) {
+ if (iEllipsisCharIndex < 0)
+ break;
+
+ int32_t index = pPiece->iStartChar + j;
+ iCharWidth += m_CharWidths[index];
+ iCharCount++;
+ if (iCharCount <= iLength) {
+ m_wsText.SetAt(index, m_wsEllipsis.GetAt(iEllipsisCharIndex));
+ m_CharWidths[index] = m_EllCharWidths[iEllipsisCharIndex];
+ } else if (iCharWidth <= m_iEllipsisWidth) {
+ m_wsText.SetAt(index, 0);
+ m_CharWidths[index] = 0;
+ }
+ iEllipsisCharIndex--;
+ }
+ if (iEllipsisCharIndex < 0)
+ break;
+ }
+ }
+}
+
+void CFDE_TextOut::Reload(const CFX_RectF& rect) {
+ int i = 0;
+ for (auto& line : m_ttoLines) {
+ if (line.GetNewReload()) {
+ m_iCurLine = i;
+ m_iCurPiece = 0;
+ ReloadLinePiece(&line, rect);
+ }
+ ++i;
+ }
+}
+
+void CFDE_TextOut::ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect) {
+ const wchar_t* pwsStr = m_wsText.c_str();
+ int32_t iPieceWidths = 0;
+ FDE_TTOPIECE* pPiece = pLine->GetPtrAt(0);
+ int32_t iStartChar = pPiece->iStartChar;
+ m_fLinePos = pPiece->rtPiece.top;
+ int32_t iPieceCount = pLine->GetSize();
+ int32_t iPieceIndex = 0;
+ CFX_BreakType dwBreakStatus = CFX_BreakType::None;
+ wchar_t wch;
+ while (iPieceIndex < iPieceCount) {
+ int32_t iStar = iStartChar;
+ int32_t iEnd = pPiece->iChars + iStar;
+ while (iStar < iEnd) {
+ wch = *(pwsStr + iStar);
+ dwBreakStatus = m_pTxtBreak->AppendChar(wch);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrievePieces(dwBreakStatus, iStartChar, iPieceWidths, true, rect);
+ iStar++;
+ }
+ iPieceIndex++;
+ pPiece = pLine->GetPtrAt(iPieceIndex);
+ }
+ dwBreakStatus = m_pTxtBreak->EndBreak(CFX_BreakType::Paragraph);
+ if (!CFX_BreakTypeNoneOrPiece(dwBreakStatus))
+ RetrievePieces(dwBreakStatus, iStartChar, iPieceWidths, true, rect);
+
+ m_pTxtBreak->Reset();
+}
+
+void CFDE_TextOut::DoAlignment(const CFX_RectF& rect) {
+ if (m_ttoLines.empty())
+ return;
+
+ float fLineStopS = rect.bottom();
+ FDE_TTOPIECE* pFirstPiece = m_ttoLines.back().GetPtrAt(0);
+ if (!pFirstPiece)
+ return;
+
+ float fLineStopD = pFirstPiece->rtPiece.bottom();
+ float fInc = fLineStopS - fLineStopD;
+ if (m_iAlignment >= FDE_TTOALIGNMENT_CenterLeft &&
+ m_iAlignment < FDE_TTOALIGNMENT_BottomLeft) {
+ fInc /= 2.0f;
+ } else if (m_iAlignment < FDE_TTOALIGNMENT_CenterLeft) {
+ fInc = 0.0f;
+ }
+ if (fInc < 1.0f)
+ return;
+ for (auto& line : m_ttoLines) {
+ int32_t iPieces = line.GetSize();
+ for (int32_t j = 0; j < iPieces; j++) {
+ FDE_TTOPIECE* pPiece = line.GetPtrAt(j);
+ pPiece->rtPiece.top += fInc;
+ }
+ }
+}
+
+void CFDE_TextOut::OnDraw(const CFX_RectF& rtClip) {
+ if (!m_pRenderDevice || m_ttoLines.empty())
+ return;
+
+ auto pBrush = pdfium::MakeUnique<CFDE_Brush>();
+ pBrush->SetColor(m_TxtColor);
+ m_pRenderDevice->SaveState();
+ if (rtClip.Width() > 0.0f && rtClip.Height() > 0.0f)
+ m_pRenderDevice->SetClipRect(rtClip);
+
+ auto pPen = pdfium::MakeUnique<CFDE_Pen>();
+ pPen->SetColor(m_TxtColor);
+
+ for (auto& line : m_ttoLines) {
+ int32_t iPieces = line.GetSize();
+ for (int32_t j = 0; j < iPieces; j++) {
+ FDE_TTOPIECE* pPiece = line.GetPtrAt(j);
+ if (!pPiece)
+ continue;
+
+ int32_t iCount = GetDisplayPos(pPiece);
+ if (iCount > 0) {
+ m_pRenderDevice->DrawString(pBrush.get(), m_pFont, m_CharPos.data(),
+ iCount, m_fFontSize, &m_Matrix);
+ }
+ DrawLine(pPiece, pPen.get());
+ }
+ }
+ m_pRenderDevice->RestoreState();
+}
+
+int32_t CFDE_TextOut::GetDisplayPos(FDE_TTOPIECE* pPiece) {
+ FX_TXTRUN tr = ToTextRun(pPiece);
+ ExpandBuffer(tr.iLength, 2);
+ return m_pTxtBreak->GetDisplayPos(&tr, m_CharPos.data());
+}
+
+int32_t CFDE_TextOut::GetCharRects(const FDE_TTOPIECE* pPiece) {
+ FX_TXTRUN tr = ToTextRun(pPiece);
+ m_rectArray = m_pTxtBreak->GetCharRects(&tr);
+ return pdfium::CollectionSize<int32_t>(m_rectArray);
+}
+
+FX_TXTRUN CFDE_TextOut::ToTextRun(const FDE_TTOPIECE* pPiece) {
+ FX_TXTRUN tr;
+ tr.wsStr = m_wsText + pPiece->iStartChar;
+ tr.pWidths = &m_CharWidths[pPiece->iStartChar];
+ tr.iLength = pPiece->iChars;
+ tr.pFont = m_pFont;
+ tr.fFontSize = m_fFontSize;
+ tr.dwStyles = m_dwTxtBkStyles;
+ tr.dwCharStyles = pPiece->dwCharStyles;
+ tr.wLineBreakChar = m_wParagraphBkChar;
+ tr.pRect = &pPiece->rtPiece;
+ return tr;
+}
+
+void CFDE_TextOut::DrawLine(const FDE_TTOPIECE* pPiece, CFDE_Pen* pPen) {
+ bool bUnderLine = !!(m_dwStyles & FDE_TTOSTYLE_Underline);
+ bool bStrikeOut = !!(m_dwStyles & FDE_TTOSTYLE_Strikeout);
+ bool bHotKey = !!(m_dwStyles & FDE_TTOSTYLE_HotKey);
+ if (!bUnderLine && !bStrikeOut && !bHotKey)
+ return;
+
+ auto pPath = pdfium::MakeUnique<CFDE_Path>();
+ int32_t iLineCount = 0;
+ CFX_RectF rtText = pPiece->rtPiece;
+ CFX_PointF pt1, pt2;
+ if (bUnderLine) {
+ pt1.x = rtText.left;
+ pt1.y = rtText.bottom();
+ pt2.x = rtText.right();
+ pt2.y = rtText.bottom();
+ pPath->AddLine(pt1, pt2);
+ iLineCount++;
+ }
+ if (bStrikeOut) {
+ pt1.x = rtText.left;
+ pt1.y = rtText.bottom() - rtText.height * 2.0f / 5.0f;
+ pt2.x = rtText.right();
+ pt2.y = pt1.y;
+ pPath->AddLine(pt1, pt2);
+ iLineCount++;
+ }
+ if (bHotKey) {
+ if (GetCharRects(pPiece) > 0) {
+ for (int32_t iCharIndex : m_HotKeys) {
+ if (iCharIndex >= pPiece->iStartChar &&
+ iCharIndex < pPiece->iStartChar + pPiece->iChars) {
+ CFX_RectF rect = m_rectArray[iCharIndex - pPiece->iStartChar];
+ pt1.x = rect.left;
+ pt1.y = rect.bottom();
+ pt2.x = rect.right();
+ pt2.y = rect.bottom();
+ pPath->AddLine(pt1, pt2);
+ iLineCount++;
+ }
+ }
+ }
+ }
+ if (iLineCount > 0)
+ m_pRenderDevice->DrawPath(pPen, 1, pPath.get(), &m_Matrix);
+}
+
+CFDE_TTOLine::CFDE_TTOLine() : m_bNewReload(false) {}
+
+CFDE_TTOLine::CFDE_TTOLine(const CFDE_TTOLine& ttoLine) : m_pieces(5) {
+ m_bNewReload = ttoLine.m_bNewReload;
+ m_pieces = ttoLine.m_pieces;
+}
+
+CFDE_TTOLine::~CFDE_TTOLine() {}
+
+int32_t CFDE_TTOLine::AddPiece(int32_t index, const FDE_TTOPIECE& ttoPiece) {
+ if (index >= pdfium::CollectionSize<int32_t>(m_pieces)) {
+ m_pieces.push_back(ttoPiece);
+ return pdfium::CollectionSize<int32_t>(m_pieces);
+ }
+ m_pieces[index] = ttoPiece;
+ return index;
+}
+
+int32_t CFDE_TTOLine::GetSize() const {
+ return pdfium::CollectionSize<int32_t>(m_pieces);
+}
+
+FDE_TTOPIECE* CFDE_TTOLine::GetPtrAt(int32_t index) {
+ return pdfium::IndexInBounds(m_pieces, index) ? &m_pieces[index] : nullptr;
+}
+
+void CFDE_TTOLine::RemoveLast(int32_t icount) {
+ if (icount < 0)
+ return;
+ icount = std::min(icount, pdfium::CollectionSize<int32_t>(m_pieces));
+ m_pieces.erase(m_pieces.end() - icount, m_pieces.end());
+}
+
+void CFDE_TTOLine::RemoveAll() {
+ m_pieces.clear();
+}