diff options
Diffstat (limited to 'xfa/fde/cfde_txtedtengine.cpp')
| -rw-r--r-- | xfa/fde/cfde_txtedtengine.cpp | 1234 |
1 files changed, 0 insertions, 1234 deletions
diff --git a/xfa/fde/cfde_txtedtengine.cpp b/xfa/fde/cfde_txtedtengine.cpp deleted file mode 100644 index e3815e7de4..0000000000 --- a/xfa/fde/cfde_txtedtengine.cpp +++ /dev/null @@ -1,1234 +0,0 @@ -// 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_txtedtengine.h" - -#include <algorithm> -#include <utility> - -#include "core/fxcrt/ifx_chariter.h" -#include "third_party/base/ptr_util.h" -#include "xfa/fde/cfde_textout.h" -#include "xfa/fde/cfde_txtedtbuf.h" -#include "xfa/fde/cfde_txtedtpage.h" -#include "xfa/fde/cfde_txtedtparag.h" -#include "xfa/fwl/cfwl_edit.h" - -namespace { - -const uint32_t kPageWidthMax = 0xffff; - -class InsertOperation : public IFDE_TxtEdtDoRecord { - public: - InsertOperation(CFDE_TxtEdtEngine* pEngine, - int32_t nCaret, - const CFX_WideString& str) - : m_pEngine(pEngine), m_nCaret(nCaret), m_wsInsert(str) { - ASSERT(m_pEngine); - } - - ~InsertOperation() override {} - - void Undo() const override { - CFX_WideString prev = m_pEngine->GetText(0, -1); - - if (m_pEngine->IsSelect()) - m_pEngine->ClearSelection(); - - m_pEngine->Inner_DeleteRange(m_nCaret, m_wsInsert.GetLength()); - m_pEngine->GetParams()->pEventSink->OnTextChanged(prev); - m_pEngine->SetCaretPos(m_nCaret, true); - } - - void Redo() const override { - CFX_WideString prev = m_pEngine->GetText(0, -1); - m_pEngine->Inner_Insert(m_nCaret, m_wsInsert); - m_pEngine->GetParams()->pEventSink->OnTextChanged(prev); - m_pEngine->SetCaretPos(m_nCaret, false); - } - - private: - CFDE_TxtEdtEngine* m_pEngine; - int32_t m_nCaret; - CFX_WideString m_wsInsert; -}; - -class DeleteOperation : public IFDE_TxtEdtDoRecord { - public: - DeleteOperation(CFDE_TxtEdtEngine* pEngine, - int32_t nIndex, - int32_t nCaret, - const CFX_WideString& wsRange, - bool bSel) - : m_pEngine(pEngine), - m_bSel(bSel), - m_nIndex(nIndex), - m_nCaret(nCaret), - m_wsRange(wsRange) { - ASSERT(m_pEngine); - } - - ~DeleteOperation() override {} - - void Undo() const override { - CFX_WideString prev = m_pEngine->GetText(0, -1); - if (m_pEngine->IsSelect()) - m_pEngine->ClearSelection(); - - m_pEngine->Inner_Insert(m_nIndex, m_wsRange); - if (m_bSel) - m_pEngine->AddSelRange(m_nIndex, m_wsRange.GetLength()); - - m_pEngine->GetParams()->pEventSink->OnTextChanged(prev); - m_pEngine->SetCaretPos(m_nCaret, true); - } - - void Redo() const override { - CFX_WideString prev = m_pEngine->GetText(0, -1); - m_pEngine->Inner_DeleteRange(m_nIndex, m_wsRange.GetLength()); - if (m_bSel) - m_pEngine->RemoveSelRange(m_nIndex, m_wsRange.GetLength()); - - m_pEngine->GetParams()->pEventSink->OnTextChanged(prev); - m_pEngine->SetCaretPos(m_nIndex, true); - } - - private: - CFDE_TxtEdtEngine* m_pEngine; - bool m_bSel; - int32_t m_nIndex; - int32_t m_nCaret; - CFX_WideString m_wsRange; -}; - -} // namespace - -FDE_TXTEDTPARAMS::FDE_TXTEDTPARAMS() - : fPlateWidth(0), - fPlateHeight(0), - nLineCount(0), - dwLayoutStyles(0), - dwAlignment(0), - dwMode(0), - fFontSize(10.0f), - dwFontColor(0xff000000), - fLineSpace(10.0f), - fTabWidth(36), - pEventSink(nullptr) {} - -FDE_TXTEDTPARAMS::~FDE_TXTEDTPARAMS() {} - -CFDE_TxtEdtEngine::CFDE_TxtEdtEngine() - : m_pTxtBuf(pdfium::MakeUnique<CFDE_TxtEdtBuf>()), - m_nPageLineCount(20), - m_nLineCount(0), - m_nAnchorPos(-1), - m_fCaretPosReserve(0.0), - m_nCaret(0), - m_nCaretPage(0), - m_nLimit(0), - m_wcAliasChar(L'*'), - m_FirstLineEnding(LineEnding::kAuto), - m_bBefore(true), - m_bLock(false), - m_bAutoLineEnd(true) {} - -CFDE_TxtEdtEngine::~CFDE_TxtEdtEngine() { - RemoveAllParags(); - RemoveAllPages(); - m_Param.pEventSink = nullptr; - ClearSelection(); -} - -void CFDE_TxtEdtEngine::SetEditParams(const FDE_TXTEDTPARAMS& params) { - m_Param = params; - m_bAutoLineEnd = true; - UpdateTxtBreak(); -} - -CFDE_TxtEdtPage* CFDE_TxtEdtEngine::GetPage(int32_t nIndex) { - if (!pdfium::IndexInBounds(m_PagePtrArray, nIndex)) - return nullptr; - return m_PagePtrArray[nIndex].get(); -} - -void CFDE_TxtEdtEngine::SetText(const CFX_WideString& wsText) { - ResetEngine(); - int32_t nLength = wsText.GetLength(); - if (nLength > 0) { - CFX_WideString wsTemp; - wchar_t* lpBuffer = wsTemp.GetBuffer(nLength); - memcpy(lpBuffer, wsText.c_str(), nLength * sizeof(wchar_t)); - ReplaceParagEnd(lpBuffer, nLength, false); - wsTemp.ReleaseBuffer(nLength); - if (m_nLimit > 0 && nLength > m_nLimit) { - wsTemp.Delete(m_nLimit, nLength - m_nLimit); - nLength = m_nLimit; - } - m_pTxtBuf->SetText(wsTemp); - } - m_pTxtBuf->Insert(nLength, L"\n"); - RebuildParagraphs(); -} - -CFX_WideString CFDE_TxtEdtEngine::GetText(int32_t nStart, - int32_t nCount) const { - int32_t nTextBufLength = GetTextLength(); - if (nCount == -1) - nCount = nTextBufLength - nStart; - - CFX_WideString wsText = m_pTxtBuf->GetRange(nStart, nCount); - RecoverParagEnd(wsText); - return wsText; -} - -void CFDE_TxtEdtEngine::ClearText() { - if (IsLocked()) - return; - - int32_t len = GetTextLength(); - if (len == 0) - return; - if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { - // This doesn't really make sense, if the cleared text isn't valid we - // don't clear it? But what if you want to clear and start again? Should - // this validation check be removed? - CFX_WideString wsText = GetText(0, GetTextLength()); - wsText.Delete(0, len); - if (!m_Param.pEventSink->OnValidate(wsText)) - return; - } - - CFX_WideString prev = GetText(0, -1); - - DeleteRange_DoRecord(0, len, false); - m_Param.pEventSink->OnTextChanged(prev); - SetCaretPos(0, true); -} - -int32_t CFDE_TxtEdtEngine::SetCaretPos(int32_t nIndex, bool bBefore) { - if (IsLocked()) - return 0; - - ASSERT(nIndex >= 0 && nIndex <= GetTextLength()); - if (!pdfium::IndexInBounds(m_PagePtrArray, m_nCaretPage)) - return 0; - - m_bBefore = bBefore; - m_nCaret = nIndex; - MovePage2Char(m_nCaret); - GetCaretRect(m_rtCaret, m_nCaretPage, m_nCaret, m_bBefore); - if (!m_bBefore) { - m_nCaret++; - m_bBefore = true; - } - m_fCaretPosReserve = m_rtCaret.left; - m_Param.pEventSink->OnCaretChanged(); - m_nAnchorPos = -1; - return m_nCaret; -} - -int32_t CFDE_TxtEdtEngine::MoveCaretPos(FDE_CaretMove eMoveCaret, bool bShift) { - if (IsLocked() || !pdfium::IndexInBounds(m_PagePtrArray, m_nCaretPage)) - return 0; - - bool bSelChange = false; - if (IsSelect()) { - ClearSelection(); - bSelChange = true; - } - if (bShift) { - if (m_nAnchorPos == -1) - m_nAnchorPos = m_nCaret; - } else { - m_nAnchorPos = -1; - } - - switch (eMoveCaret) { - case FDE_CaretMove::Left: { - bool bBefore = true; - int32_t nIndex = MoveBackward(bBefore); - if (nIndex >= 0) - UpdateCaretRect(nIndex, bBefore); - break; - } - case FDE_CaretMove::Right: { - bool bBefore = true; - int32_t nIndex = MoveForward(bBefore); - if (nIndex >= 0) - UpdateCaretRect(nIndex, bBefore); - break; - } - case FDE_CaretMove::Up: { - CFX_PointF ptCaret; - if (MoveUp(ptCaret)) - UpdateCaretIndex(ptCaret); - break; - } - case FDE_CaretMove::Down: { - CFX_PointF ptCaret; - if (MoveDown(ptCaret)) - UpdateCaretIndex(ptCaret); - break; - } - case FDE_CaretMove::LineStart: - MoveLineStart(); - break; - case FDE_CaretMove::LineEnd: - MoveLineEnd(); - break; - case FDE_CaretMove::Home: - MoveHome(); - break; - case FDE_CaretMove::End: - MoveEnd(); - break; - } - if (bShift && m_nAnchorPos != -1 && (m_nAnchorPos != m_nCaret)) { - AddSelRange(std::min(m_nAnchorPos, m_nCaret), abs(m_nAnchorPos - m_nCaret)); - m_Param.pEventSink->OnSelChanged(); - } - if (bSelChange) - m_Param.pEventSink->OnSelChanged(); - - return m_nCaret; -} - -FDE_EditResult CFDE_TxtEdtEngine::Insert(const CFX_WideString& str) { - if (IsLocked()) - return FDE_EditResult::kLocked; - - int32_t nLength = str.GetLength(); - CFX_WideString wsTemp; - wchar_t* lpBuffer = wsTemp.GetBuffer(nLength); - memcpy(lpBuffer, str.c_str(), nLength * sizeof(wchar_t)); - ReplaceParagEnd(lpBuffer, nLength, false); - wsTemp.ReleaseBuffer(nLength); - - if (m_nLimit > 0) { - int32_t nTotalLength = GetTextLength(); - for (const auto& lpSelRange : m_SelRangePtrArr) - nTotalLength -= lpSelRange->nCount; - - int32_t nExpectLength = nTotalLength + nLength; - if (nTotalLength == m_nLimit) - return FDE_EditResult::kFull; - - if (nExpectLength > m_nLimit) - nLength -= (nExpectLength - m_nLimit); - } - if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Vert) || - (m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Horz)) { - if (m_Param.dwMode & FDE_TEXTEDITMODE_Password) { - while (nLength > 0) { - CFX_WideString wsText = InsertIntoTextCopy(m_nCaret, lpBuffer, nLength); - int32_t nTotal = wsText.GetLength(); - wchar_t* lpBuf = wsText.GetBuffer(nTotal); - for (int32_t i = 0; i < nTotal; i++) { - lpBuf[i] = m_wcAliasChar; - } - wsText.ReleaseBuffer(nTotal); - if (IsFitArea(wsText)) { - break; - } - nLength--; - } - } else { - while (nLength > 0) { - CFX_WideString wsText = InsertIntoTextCopy(m_nCaret, lpBuffer, nLength); - if (IsFitArea(wsText)) - break; - - nLength--; - } - } - if (nLength == 0) - return FDE_EditResult::kFull; - } - if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { - CFX_WideString wsText = InsertIntoTextCopy(m_nCaret, lpBuffer, nLength); - if (!m_Param.pEventSink->OnValidate(wsText)) - return FDE_EditResult::kInvalidate; - } - if (IsSelect()) { - DeleteSelect(); - } - m_Param.pEventSink->OnAddDoRecord(pdfium::MakeUnique<InsertOperation>( - this, m_nCaret, CFX_WideString(lpBuffer, nLength))); - - CFX_WideString prev = GetText(0, -1); - Inner_Insert(m_nCaret, CFX_WideString(lpBuffer, nLength)); - - int32_t nStart = m_nCaret; - nStart += nLength; - wchar_t wChar = m_pTxtBuf->GetCharByIndex(nStart - 1); - bool bBefore = true; - if (wChar != L'\n' && wChar != L'\r') { - nStart--; - bBefore = false; - } - SetCaretPos(nStart, bBefore); - m_Param.pEventSink->OnTextChanged(prev); - return FDE_EditResult::kSuccess; -} - -void CFDE_TxtEdtEngine::Delete(bool bBackspace) { - if (IsLocked()) - return; - if (IsSelect()) { - DeleteSelect(); - return; - } - - int32_t nCount = 1; - int32_t nStart = m_nCaret; - if (bBackspace) { - if (nStart == 0) - return; - - if (nStart > 2 && m_pTxtBuf->GetCharByIndex(nStart - 1) == L'\n' && - m_pTxtBuf->GetCharByIndex(nStart - 2) == L'\r') { - nStart--; - nCount++; - } - nStart--; - } else { - if (nStart == GetTextLength()) - return; - - if ((nStart + 1 < GetTextLength()) && - (m_pTxtBuf->GetCharByIndex(nStart) == L'\r') && - (m_pTxtBuf->GetCharByIndex(nStart + 1) == L'\n')) { - nCount++; - } - } - if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { - // This doesn't really make sense, if the text with the character removed - // isn't valid we disallow the removal? Is that even possible as the string - // must have been valid in order to type the character in before hand? - // Should this check be removed? - CFX_WideString wsText = GetText(0, GetTextLength()); - wsText.Delete(nStart, nCount); - if (!m_Param.pEventSink->OnValidate(wsText)) - return; - } - - CFX_WideString wsRange = m_pTxtBuf->GetRange(nStart, nCount); - m_Param.pEventSink->OnAddDoRecord(pdfium::MakeUnique<DeleteOperation>( - this, nStart, m_nCaret, wsRange, false)); - - CFX_WideString prev = GetText(0, -1); - Inner_DeleteRange(nStart, nCount); - SetCaretPos(nStart + ((!bBackspace && nStart > 0) ? -1 : 0), - (bBackspace || nStart == 0)); - m_Param.pEventSink->OnTextChanged(prev); -} - -void CFDE_TxtEdtEngine::RemoveSelRange(int32_t nStart, int32_t nCount) { - int32_t nRangeCount = pdfium::CollectionSize<int32_t>(m_SelRangePtrArr); - for (int32_t i = 0; i < nRangeCount; i++) { - FDE_TXTEDTSELRANGE* lpTemp = m_SelRangePtrArr[i].get(); - if (lpTemp->nStart == nStart && lpTemp->nCount == nCount) { - m_SelRangePtrArr.erase(m_SelRangePtrArr.begin() + i); - return; - } - } -} - -void CFDE_TxtEdtEngine::AddSelRange(int32_t nStart, int32_t nCount) { - if (nCount == -1) - nCount = GetTextLength() - nStart; - - if (m_SelRangePtrArr.empty()) { - auto lpSelRange = pdfium::MakeUnique<FDE_TXTEDTSELRANGE>(); - lpSelRange->nStart = nStart; - lpSelRange->nCount = nCount; - m_SelRangePtrArr.push_back(std::move(lpSelRange)); - m_Param.pEventSink->OnSelChanged(); - return; - } - auto* lpTemp = m_SelRangePtrArr.back().get(); - if (nStart >= lpTemp->nStart + lpTemp->nCount) { - auto lpSelRange = pdfium::MakeUnique<FDE_TXTEDTSELRANGE>(); - lpSelRange->nStart = nStart; - lpSelRange->nCount = nCount; - m_SelRangePtrArr.push_back(std::move(lpSelRange)); - m_Param.pEventSink->OnSelChanged(); - return; - } - int32_t nEnd = nStart + nCount - 1; - bool bBegin = false; - int32_t nRangeBgn = 0; - int32_t nRangeCnt = 0; - for (int32_t i = 0, nSize = pdfium::CollectionSize<int32_t>(m_SelRangePtrArr); - i < nSize; i++) { - lpTemp = m_SelRangePtrArr[i].get(); - int32_t nTempBgn = lpTemp->nStart; - int32_t nTempEnd = nTempBgn + lpTemp->nCount - 1; - if (bBegin) { - if (nEnd < nTempBgn) { - break; - } else if (nStart >= nTempBgn && nStart <= nTempEnd) { - nRangeCnt++; - break; - } - nRangeCnt++; - } else { - if (nStart <= nTempEnd) { - nRangeBgn = i; - if (nEnd < nTempBgn) { - break; - } - nRangeCnt = 1; - bBegin = true; - } - } - } - if (nRangeCnt == 0) { - auto lpSelRange = pdfium::MakeUnique<FDE_TXTEDTSELRANGE>(); - lpSelRange->nStart = nStart; - lpSelRange->nCount = nCount; - m_SelRangePtrArr.insert(m_SelRangePtrArr.begin() + nRangeBgn, - std::move(lpSelRange)); - } else { - lpTemp = m_SelRangePtrArr[nRangeBgn].get(); - lpTemp->nStart = nStart; - lpTemp->nCount = nCount; - nRangeCnt--; - nRangeBgn++; - m_SelRangePtrArr.erase(m_SelRangePtrArr.begin() + nRangeBgn, - m_SelRangePtrArr.begin() + nRangeBgn + nRangeCnt); - } - m_Param.pEventSink->OnSelChanged(); -} - -int32_t CFDE_TxtEdtEngine::GetSelRange(int32_t nIndex, int32_t* nStart) const { - if (nStart) - *nStart = m_SelRangePtrArr[nIndex]->nStart; - return m_SelRangePtrArr[nIndex]->nCount; -} - -void CFDE_TxtEdtEngine::ClearSelection() { - if (m_SelRangePtrArr.empty()) - return; - m_SelRangePtrArr.clear(); - if (m_Param.pEventSink) - m_Param.pEventSink->OnSelChanged(); -} - -bool CFDE_TxtEdtEngine::Redo(const IFDE_TxtEdtDoRecord* pDoRecord) { - if (IsLocked()) - return false; - pDoRecord->Redo(); - return true; -} - -bool CFDE_TxtEdtEngine::Undo(const IFDE_TxtEdtDoRecord* pDoRecord) { - if (IsLocked()) - return false; - pDoRecord->Undo(); - return true; -} - -void CFDE_TxtEdtEngine::Layout() { - CFX_AutoRestorer<bool> lock(&m_bLock); - m_bLock = true; - - RemoveAllPages(); - UpdateLineCounts(); - UpdatePages(); - - m_nCaret = std::min(m_nCaret, GetTextLength()); - m_rtCaret = CFX_RectF(0, 0, 1, m_Param.fFontSize); -} - -int32_t CFDE_TxtEdtEngine::Line2Parag(int32_t nStartParag, - int32_t nStartLineofParag, - int32_t nLineIndex, - int32_t& nStartLine) const { - int32_t nLineTotal = nStartLineofParag; - int32_t nCount = pdfium::CollectionSize<int32_t>(m_ParagPtrArray); - CFDE_TxtEdtParag* pParag = nullptr; - int32_t i = nStartParag; - for (; i < nCount; i++) { - pParag = m_ParagPtrArray[i].get(); - nLineTotal += pParag->GetLineCount(); - if (nLineTotal > nLineIndex) { - break; - } - } - nStartLine = nLineTotal - pParag->GetLineCount(); - return i; -} - -CFX_WideString CFDE_TxtEdtEngine::InsertIntoTextCopy(int32_t nIndex, - const wchar_t* lpText, - int32_t nLength) { - CFX_WideString wsText = GetText(0, GetTextLength()); - int32_t nSelIndex = 0; - int32_t nSelLength = 0; - int32_t nSelCount = CountSelRanges(); - while (nSelCount--) { - nSelLength = GetSelRange(nSelCount, &nSelIndex); - wsText.Delete(nSelIndex, nSelLength); - nIndex = nSelIndex; - } - CFX_WideString wsTemp; - int32_t nOldLength = wsText.GetLength(); - const wchar_t* pOldBuffer = wsText.c_str(); - wchar_t* lpBuffer = wsTemp.GetBuffer(nOldLength + nLength); - memcpy(lpBuffer, pOldBuffer, (nIndex) * sizeof(wchar_t)); - memcpy(lpBuffer + nIndex, lpText, nLength * sizeof(wchar_t)); - memcpy(lpBuffer + nIndex + nLength, pOldBuffer + nIndex, - (nOldLength - nIndex) * sizeof(wchar_t)); - wsTemp.ReleaseBuffer(nOldLength + nLength); - wsText = wsTemp; - return wsText; -} - -void CFDE_TxtEdtEngine::Inner_Insert(int32_t nStart, - const CFX_WideString& wsText) { - const int32_t nLength = wsText.GetLength(); - ASSERT(nLength > 0); - FDE_TXTEDTPARAGPOS ParagPos; - TextPos2ParagPos(nStart, ParagPos); - - GetPage(m_nCaretPage)->UnloadPage(); - - int32_t nParagCount = pdfium::CollectionSize<int32_t>(m_ParagPtrArray); - for (int32_t i = ParagPos.nParagIndex + 1; i < nParagCount; i++) - m_ParagPtrArray[i]->IncrementStartIndex(nLength); - - CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex].get(); - int32_t nReserveLineCount = pParag->GetLineCount(); - int32_t nReserveCharStart = pParag->GetStartIndex(); - int32_t nLeavePart = ParagPos.nCharIndex; - int32_t nCutPart = pParag->GetTextLength() - ParagPos.nCharIndex; - int32_t nTextStart = 0; - int32_t nCur = 0; - bool bFirst = true; - int32_t nParagIndex = ParagPos.nParagIndex; - for (const auto& wCurChar : wsText) { - ++nCur; - if (wCurChar == L'\n') { - if (bFirst) { - pParag->SetTextLength(nLeavePart + (nCur - nTextStart + 1)); - pParag->SetLineCount(-1); - nReserveCharStart += pParag->GetTextLength(); - bFirst = false; - } else { - auto pParag2 = pdfium::MakeUnique<CFDE_TxtEdtParag>(this); - pParag2->SetLineCount(-1); - pParag2->SetTextLength(nCur - nTextStart + 1); - pParag2->SetStartIndex(nReserveCharStart); - nReserveCharStart += pParag2->GetTextLength(); - m_ParagPtrArray.insert(m_ParagPtrArray.begin() + ++nParagIndex, - std::move(pParag2)); - } - nTextStart = nCur + 1; - } - } - if (bFirst) { - pParag->IncrementTextLength(nLength); - pParag->SetLineCount(-1); - bFirst = false; - } else { - auto pParag2 = pdfium::MakeUnique<CFDE_TxtEdtParag>(this); - pParag2->SetLineCount(-1); - pParag2->SetTextLength(nLength - nTextStart + nCutPart); - pParag2->SetStartIndex(nReserveCharStart); - m_ParagPtrArray.insert(m_ParagPtrArray.begin() + ++nParagIndex, - std::move(pParag2)); - } - m_pTxtBuf->Insert(nStart, wsText); - int32_t nTotalLineCount = 0; - for (int32_t i = ParagPos.nParagIndex; i <= nParagIndex; i++) { - pParag = m_ParagPtrArray[i].get(); - pParag->CalcLines(); - nTotalLineCount += pParag->GetLineCount(); - } - m_nLineCount += nTotalLineCount - nReserveLineCount; - - GetPage(m_nCaretPage)->LoadPage(); - UpdatePages(); -} - -void CFDE_TxtEdtEngine::Inner_DeleteRange(int32_t nStart, int32_t nCount) { - if (nCount == -1) { - nCount = m_pTxtBuf->GetTextLength() - nStart; - } - int32_t nEnd = nStart + nCount - 1; - ASSERT(nStart >= 0 && nEnd < m_pTxtBuf->GetTextLength()); - - GetPage(m_nCaretPage)->UnloadPage(); - - FDE_TXTEDTPARAGPOS ParagPosBgn, ParagPosEnd; - TextPos2ParagPos(nStart, ParagPosBgn); - TextPos2ParagPos(nEnd, ParagPosEnd); - CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPosEnd.nParagIndex].get(); - bool bLastParag = false; - if (ParagPosEnd.nCharIndex == pParag->GetTextLength() - 1) { - if (ParagPosEnd.nParagIndex < - pdfium::CollectionSize<int32_t>(m_ParagPtrArray) - 1) { - ParagPosEnd.nParagIndex++; - } else { - bLastParag = true; - } - } - int32_t nTotalLineCount = 0; - int32_t nTotalCharCount = 0; - int32_t i = 0; - for (i = ParagPosBgn.nParagIndex; i <= ParagPosEnd.nParagIndex; i++) { - CFDE_TxtEdtParag* pTextParag = m_ParagPtrArray[i].get(); - pTextParag->CalcLines(); - nTotalLineCount += pTextParag->GetLineCount(); - nTotalCharCount += pTextParag->GetTextLength(); - } - m_pTxtBuf->Delete(nStart, nCount); - int32_t nNextParagIndex = (ParagPosBgn.nCharIndex == 0 && bLastParag) - ? ParagPosBgn.nParagIndex - : (ParagPosBgn.nParagIndex + 1); - m_ParagPtrArray.erase(m_ParagPtrArray.begin() + nNextParagIndex, - m_ParagPtrArray.begin() + ParagPosEnd.nParagIndex + 1); - - if (!(bLastParag && ParagPosBgn.nCharIndex == 0)) { - pParag = m_ParagPtrArray[ParagPosBgn.nParagIndex].get(); - pParag->SetTextLength(nTotalCharCount - nCount); - pParag->CalcLines(); - nTotalLineCount -= pParag->GetLineCount(); - } - int32_t nParagCount = pdfium::CollectionSize<int32_t>(m_ParagPtrArray); - for (i = nNextParagIndex; i < nParagCount; i++) - m_ParagPtrArray[i]->DecrementStartIndex(nCount); - - m_nLineCount -= nTotalLineCount; - UpdatePages(); - int32_t nPageCount = CountPages(); - if (m_nCaretPage >= nPageCount) { - m_nCaretPage = nPageCount - 1; - } - - GetPage(m_nCaret)->LoadPage(); -} - -void CFDE_TxtEdtEngine::DeleteRange_DoRecord(int32_t nStart, - int32_t nCount, - bool bSel) { - ASSERT(nStart >= 0); - if (nCount == -1) { - nCount = GetTextLength() - nStart; - } - ASSERT((nStart + nCount) <= m_pTxtBuf->GetTextLength()); - - CFX_WideString wsRange = m_pTxtBuf->GetRange(nStart, nCount); - m_Param.pEventSink->OnAddDoRecord(pdfium::MakeUnique<DeleteOperation>( - this, nStart, m_nCaret, wsRange, bSel)); - - Inner_DeleteRange(nStart, nCount); -} - -void CFDE_TxtEdtEngine::ResetEngine() { - RemoveAllPages(); - RemoveAllParags(); - ClearSelection(); - m_nCaret = 0; - m_pTxtBuf->Clear(); - m_nCaret = 0; -} - -void CFDE_TxtEdtEngine::RebuildParagraphs() { - RemoveAllParags(); - wchar_t wChar = L' '; - int32_t nParagStart = 0; - int32_t nIndex = 0; - auto pIter = pdfium::MakeUnique<CFDE_TxtEdtBuf::Iterator>(m_pTxtBuf.get(), 0); - pIter->SetAt(0); - do { - wChar = pIter->GetChar(); - nIndex = pIter->GetAt(); - if (wChar == L'\n') { - auto pParag = pdfium::MakeUnique<CFDE_TxtEdtParag>(this); - pParag->SetStartIndex(nParagStart); - pParag->SetTextLength(nIndex - nParagStart + 1); - pParag->SetLineCount(-1); - m_ParagPtrArray.push_back(std::move(pParag)); - nParagStart = nIndex + 1; - } - } while (pIter->Next()); -} - -void CFDE_TxtEdtEngine::UpdateLineCounts() { - if (m_ParagPtrArray.empty()) - return; - - int32_t nLineCount = 0; - for (auto& pParag : m_ParagPtrArray) { - pParag->CalcLines(); - nLineCount += pParag->GetLineCount(); - } - m_nLineCount = nLineCount; -} - -void CFDE_TxtEdtEngine::UpdatePages() { - if (m_nLineCount == 0) - return; - - int32_t nPageCount = (m_nLineCount - 1) / (m_nPageLineCount) + 1; - int32_t nSize = pdfium::CollectionSize<int32_t>(m_PagePtrArray); - if (nSize == nPageCount) - return; - - if (nSize > nPageCount) { - m_PagePtrArray.erase(m_PagePtrArray.begin() + nPageCount, - m_PagePtrArray.end()); - return; - } - for (int32_t i = nSize; i < nPageCount; i++) - m_PagePtrArray.push_back(pdfium::MakeUnique<CFDE_TxtEdtPage>(this, i)); -} - -void CFDE_TxtEdtEngine::UpdateTxtBreak() { - uint32_t dwStyle = m_TextBreak.GetLayoutStyles(); - if (m_Param.dwMode & FDE_TEXTEDITMODE_MultiLines) - dwStyle &= ~FX_LAYOUTSTYLE_SingleLine; - else - dwStyle |= FX_LAYOUTSTYLE_SingleLine; - - if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CombText) - dwStyle |= FX_LAYOUTSTYLE_CombText; - else - dwStyle &= ~FX_LAYOUTSTYLE_CombText; - - m_TextBreak.SetLayoutStyles(dwStyle); - uint32_t dwAligment = 0; - if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Justified) - dwAligment |= CFX_TxtLineAlignment_Justified; - - if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Center) - dwAligment |= CFX_TxtLineAlignment_Center; - else if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Right) - dwAligment |= CFX_TxtLineAlignment_Right; - - m_TextBreak.SetAlignment(dwAligment); - - if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) - m_TextBreak.SetLineWidth(m_Param.fPlateWidth); - else - m_TextBreak.SetLineWidth(kPageWidthMax); - - m_nPageLineCount = m_Param.nLineCount; - if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CombText) { - float fCombWidth = m_Param.fPlateWidth; - if (m_nLimit > 0) - fCombWidth /= m_nLimit; - - m_TextBreak.SetCombWidth(fCombWidth); - } - m_TextBreak.SetFont(m_Param.pFont); - m_TextBreak.SetFontSize(m_Param.fFontSize); - m_TextBreak.SetTabWidth(m_Param.fTabWidth); - m_TextBreak.SetDefaultChar(0xFEFF); - m_TextBreak.SetParagraphBreakChar(L'\n'); - m_TextBreak.SetLineBreakTolerance(m_Param.fFontSize * 0.2f); - m_TextBreak.SetHorizontalScale(100); - m_TextBreak.SetCharSpace(0); -} - -bool CFDE_TxtEdtEngine::ReplaceParagEnd(wchar_t*& lpText, - int32_t& nLength, - bool bPreIsCR) { - for (int32_t i = 0; i < nLength; i++) { - wchar_t wc = lpText[i]; - switch (wc) { - case L'\r': { - lpText[i] = L'\n'; - bPreIsCR = true; - } break; - case L'\n': { - if (bPreIsCR == true) { - int32_t nNext = i + 1; - if (nNext < nLength) { - memmove(lpText + i, lpText + nNext, - (nLength - nNext) * sizeof(wchar_t)); - } - i--; - nLength--; - bPreIsCR = false; - if (m_bAutoLineEnd) { - m_FirstLineEnding = LineEnding::kCRLF; - m_bAutoLineEnd = false; - } - } else { - lpText[i] = L'\n'; - if (m_bAutoLineEnd) { - m_FirstLineEnding = LineEnding::kLF; - m_bAutoLineEnd = false; - } - } - } break; - default: { - if (bPreIsCR && m_bAutoLineEnd) { - m_FirstLineEnding = LineEnding::kCR; - m_bAutoLineEnd = false; - } - bPreIsCR = false; - } break; - } - } - return bPreIsCR; -} - -void CFDE_TxtEdtEngine::RecoverParagEnd(CFX_WideString& wsText) const { - if (m_FirstLineEnding == LineEnding::kCR) - return; - - if (m_FirstLineEnding == LineEnding::kCRLF) { - std::vector<int32_t> PosArr; - int32_t nLength = wsText.GetLength(); - wchar_t* lpPos = const_cast<wchar_t*>(wsText.c_str()); - for (int32_t i = 0; i < nLength; i++, lpPos++) { - if (*lpPos == L'\n') { - *lpPos = L'\r'; - PosArr.push_back(i); - } - } - const wchar_t* lpSrcBuf = wsText.c_str(); - CFX_WideString wsTemp; - int32_t nCount = pdfium::CollectionSize<int32_t>(PosArr); - wchar_t* lpDstBuf = wsTemp.GetBuffer(nLength + nCount); - int32_t nDstPos = 0; - int32_t nSrcPos = 0; - for (int32_t i = 0; i < nCount; i++) { - int32_t nPos = PosArr[i]; - int32_t nCopyLen = nPos - nSrcPos + 1; - memcpy(lpDstBuf + nDstPos, lpSrcBuf + nSrcPos, - nCopyLen * sizeof(wchar_t)); - nDstPos += nCopyLen; - nSrcPos += nCopyLen; - lpDstBuf[nDstPos] = L'\n'; - nDstPos++; - } - if (nSrcPos < nLength) { - memcpy(lpDstBuf + nDstPos, lpSrcBuf + nSrcPos, - (nLength - nSrcPos) * sizeof(wchar_t)); - } - wsTemp.ReleaseBuffer(nLength + nCount); - wsText = wsTemp; - return; - } - - int32_t nLength = wsText.GetLength(); - wchar_t* lpBuf = const_cast<wchar_t*>(wsText.c_str()); - for (int32_t i = 0; i < nLength; i++, lpBuf++) { - if (*lpBuf == L'\n') - *lpBuf = L'\r'; - } -} - -int32_t CFDE_TxtEdtEngine::MovePage2Char(int32_t nIndex) { - ASSERT(nIndex >= 0); - ASSERT(nIndex <= m_pTxtBuf->GetTextLength()); - if (m_nCaretPage >= 0) { - CFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage].get(); - pPage->LoadPage(); - - int32_t nPageCharStart = pPage->GetCharStart(); - int32_t nPageCharCount = pPage->GetCharCount(); - - pPage->UnloadPage(); - if (nIndex >= nPageCharStart && nIndex < nPageCharStart + nPageCharCount) - return m_nCaretPage; - } - - CFDE_TxtEdtParag* pParag = nullptr; - int32_t nLineCount = 0; - int32_t nParagCount = pdfium::CollectionSize<int32_t>(m_ParagPtrArray); - int32_t i = 0; - for (i = 0; i < nParagCount; i++) { - pParag = m_ParagPtrArray[i].get(); - if (pParag->GetStartIndex() <= nIndex && - nIndex < (pParag->GetStartIndex() + pParag->GetTextLength())) { - break; - } - nLineCount += pParag->GetLineCount(); - } - pParag->LoadParag(); - int32_t nLineStart = -1; - int32_t nLineCharCount = -1; - for (i = 0; i < pParag->GetLineCount(); i++) { - pParag->GetLineRange(i, nLineStart, nLineCharCount); - if (nLineStart <= nIndex && nIndex < (nLineStart + nLineCharCount)) - break; - } - ASSERT(i < pParag->GetLineCount()); - nLineCount += (i + 1); - m_nCaretPage = (nLineCount - 1) / m_nPageLineCount + 1 - 1; - pParag->UnloadParag(); - return m_nCaretPage; -} - -void CFDE_TxtEdtEngine::TextPos2ParagPos(int32_t nIndex, - FDE_TXTEDTPARAGPOS& ParagPos) const { - ASSERT(nIndex >= 0 && nIndex < m_pTxtBuf->GetTextLength()); - int32_t nCount = pdfium::CollectionSize<int32_t>(m_ParagPtrArray); - int32_t nBgn = 0; - int32_t nMid = 0; - int32_t nEnd = nCount - 1; - while (nEnd > nBgn) { - nMid = (nBgn + nEnd) / 2; - CFDE_TxtEdtParag* pParag = m_ParagPtrArray[nMid].get(); - if (nIndex < pParag->GetStartIndex()) - nEnd = nMid - 1; - else if (nIndex >= (pParag->GetStartIndex() + pParag->GetTextLength())) - nBgn = nMid + 1; - else - break; - } - if (nBgn == nEnd) - nMid = nBgn; - - ASSERT(nIndex >= m_ParagPtrArray[nMid]->GetStartIndex() && - (nIndex < m_ParagPtrArray[nMid]->GetStartIndex() + - m_ParagPtrArray[nMid]->GetTextLength())); - ParagPos.nParagIndex = nMid; - ParagPos.nCharIndex = nIndex - m_ParagPtrArray[nMid]->GetStartIndex(); -} - -int32_t CFDE_TxtEdtEngine::MoveForward(bool& bBefore) { - if (m_nCaret == m_pTxtBuf->GetTextLength() - 1) - return -1; - - int32_t nCaret = m_nCaret; - if ((nCaret + 1 < m_pTxtBuf->GetTextLength()) && - (m_pTxtBuf->GetCharByIndex(nCaret) == L'\r') && - (m_pTxtBuf->GetCharByIndex(nCaret + 1) == L'\n')) { - nCaret++; - } - nCaret++; - bBefore = true; - return nCaret; -} - -int32_t CFDE_TxtEdtEngine::MoveBackward(bool& bBefore) { - if (m_nCaret == 0) - return false; - - int32_t nCaret = m_nCaret; - if (nCaret > 2 && m_pTxtBuf->GetCharByIndex(nCaret - 1) == L'\n' && - m_pTxtBuf->GetCharByIndex(nCaret - 2) == L'\r') { - nCaret--; - } - nCaret--; - bBefore = true; - return nCaret; -} - -bool CFDE_TxtEdtEngine::MoveUp(CFX_PointF& ptCaret) { - CFDE_TxtEdtPage* pPage = GetPage(m_nCaretPage); - const CFX_RectF& rtContent = pPage->GetContentsBox(); - ptCaret.x = m_fCaretPosReserve; - ptCaret.y = m_rtCaret.top + m_rtCaret.height / 2 - m_Param.fLineSpace; - if (ptCaret.y < rtContent.top) { - if (m_nCaretPage == 0) { - return false; - } - ptCaret.y -= rtContent.top; - m_nCaretPage--; - CFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); - ptCaret.y += pCurPage->GetContentsBox().bottom(); - } - - return true; -} - -bool CFDE_TxtEdtEngine::MoveDown(CFX_PointF& ptCaret) { - CFDE_TxtEdtPage* pPage = GetPage(m_nCaretPage); - const CFX_RectF& rtContent = pPage->GetContentsBox(); - ptCaret.x = m_fCaretPosReserve; - ptCaret.y = m_rtCaret.top + m_rtCaret.height / 2 + m_Param.fLineSpace; - if (ptCaret.y >= rtContent.bottom()) { - if (m_nCaretPage == CountPages() - 1) { - return false; - } - ptCaret.y -= rtContent.bottom(); - m_nCaretPage++; - CFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); - ptCaret.y += pCurPage->GetContentsBox().top; - } - return true; -} - -bool CFDE_TxtEdtEngine::MoveLineStart() { - int32_t nIndex = m_bBefore ? m_nCaret : m_nCaret - 1; - FDE_TXTEDTPARAGPOS ParagPos; - TextPos2ParagPos(nIndex, ParagPos); - CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex].get(); - pParag->LoadParag(); - int32_t nLineCount = pParag->GetLineCount(); - int32_t i = 0; - int32_t nStart = 0; - int32_t nCount = 0; - for (; i < nLineCount; i++) { - pParag->GetLineRange(i, nStart, nCount); - if (nIndex >= nStart && nIndex < nStart + nCount) { - break; - } - } - UpdateCaretRect(nStart, true); - pParag->UnloadParag(); - return true; -} - -bool CFDE_TxtEdtEngine::MoveLineEnd() { - int32_t nIndex = m_bBefore ? m_nCaret : m_nCaret - 1; - FDE_TXTEDTPARAGPOS ParagPos; - TextPos2ParagPos(nIndex, ParagPos); - CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex].get(); - pParag->LoadParag(); - int32_t nLineCount = pParag->GetLineCount(); - int32_t i = 0; - int32_t nStart = 0; - int32_t nCount = 0; - for (; i < nLineCount; i++) { - pParag->GetLineRange(i, nStart, nCount); - if (nIndex >= nStart && nIndex < nStart + nCount) { - break; - } - } - nIndex = nStart + nCount - 1; - ASSERT(nIndex <= GetTextLength()); - wchar_t wChar = m_pTxtBuf->GetCharByIndex(nIndex); - bool bBefore = false; - if (nIndex <= GetTextLength()) { - if (wChar == L'\r') { - bBefore = true; - } else if (wChar == L'\n' && nIndex > nStart) { - bBefore = true; - nIndex--; - wChar = m_pTxtBuf->GetCharByIndex(nIndex); - if (wChar != L'\r') { - nIndex++; - } - } - } - UpdateCaretRect(nIndex, bBefore); - pParag->UnloadParag(); - return true; -} - -bool CFDE_TxtEdtEngine::MoveHome() { - UpdateCaretRect(0, true); - return true; -} - -bool CFDE_TxtEdtEngine::MoveEnd() { - UpdateCaretRect(GetTextLength(), true); - return true; -} - -bool CFDE_TxtEdtEngine::IsFitArea(CFX_WideString& wsText) { - auto pTextOut = pdfium::MakeUnique<CFDE_TextOut>(); - pTextOut->SetLineSpace(m_Param.fLineSpace); - pTextOut->SetFont(m_Param.pFont); - pTextOut->SetFontSize(m_Param.fFontSize); - - FDE_TextStyle dwStyle; - if (!(m_Param.dwMode & FDE_TEXTEDITMODE_MultiLines)) - dwStyle.single_line_ = true; - - CFX_RectF rcText; - if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) { - dwStyle.line_wrap_ = true; - rcText.width = m_Param.fPlateWidth; - } else { - rcText.width = 65535; - } - pTextOut->SetStyles(dwStyle); - wsText += L"\n"; - pTextOut->CalcLogicSize(wsText, rcText); - wsText.Delete(wsText.GetLength() - 1); - if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Horz) && - (rcText.width > m_Param.fPlateWidth)) { - return false; - } - if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Vert) && - (rcText.height > m_Param.fLineSpace * m_Param.nLineCount)) { - return false; - } - return true; -} - -void CFDE_TxtEdtEngine::UpdateCaretRect(int32_t nIndex, bool bBefore) { - MovePage2Char(nIndex); - GetCaretRect(m_rtCaret, m_nCaretPage, nIndex, bBefore); - m_nCaret = nIndex; - m_bBefore = bBefore; - if (!m_bBefore) { - m_nCaret++; - m_bBefore = true; - } - m_fCaretPosReserve = m_rtCaret.left; - m_Param.pEventSink->OnCaretChanged(); -} - -void CFDE_TxtEdtEngine::GetCaretRect(CFX_RectF& rtCaret, - int32_t nPageIndex, - int32_t nCaret, - bool bBefore) { - CFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage].get(); - pPage->LoadPage(); - - bool bCombText = !!(m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CombText); - int32_t nIndexInpage = nCaret - pPage->GetCharStart(); - if (bBefore && bCombText && nIndexInpage > 0) { - nIndexInpage--; - bBefore = false; - } - int32_t nBIDILevel = pPage->GetCharRect(nIndexInpage, rtCaret, bCombText); - if ((!FX_IsOdd(nBIDILevel) && !bBefore) || - (FX_IsOdd(nBIDILevel) && bBefore)) { - rtCaret.Offset(rtCaret.width - 1.0f, 0); - } - if (rtCaret.width == 0 && rtCaret.left > 1.0f) - rtCaret.left -= 1.0f; - - rtCaret.width = 1.0f; - - GetPage(m_nCaretPage)->UnloadPage(); -} - -void CFDE_TxtEdtEngine::UpdateCaretIndex(const CFX_PointF& ptCaret) { - CFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage].get(); - pPage->LoadPage(); - - m_nCaret = pPage->GetCharIndex(ptCaret, m_bBefore); - GetCaretRect(m_rtCaret, m_nCaretPage, m_nCaret, m_bBefore); - if (!m_bBefore) { - m_nCaret++; - m_bBefore = true; - } - m_Param.pEventSink->OnCaretChanged(); - GetPage(m_nCaretPage)->UnloadPage(); -} - -void CFDE_TxtEdtEngine::DeleteSelect() { - int32_t nCountRange = CountSelRanges(); - if (nCountRange <= 0) - return; - - CFX_WideString prev = GetText(0, -1); - - int32_t nSelStart = 0; - while (nCountRange > 0) { - int32_t nSelCount = GetSelRange(--nCountRange, &nSelStart); - m_SelRangePtrArr.erase(m_SelRangePtrArr.begin() + nCountRange); - DeleteRange_DoRecord(nSelStart, nSelCount, true); - } - ClearSelection(); - m_Param.pEventSink->OnTextChanged(prev); - m_Param.pEventSink->OnSelChanged(); - SetCaretPos(nSelStart, true); -} |