diff options
Diffstat (limited to 'xfa/fde/cfde_txtedtengine.cpp')
| -rw-r--r-- | xfa/fde/cfde_txtedtengine.cpp | 1643 |
1 files changed, 1643 insertions, 0 deletions
diff --git a/xfa/fde/cfde_txtedtengine.cpp b/xfa/fde/cfde_txtedtengine.cpp new file mode 100644 index 0000000000..3162d397ee --- /dev/null +++ b/xfa/fde/cfde_txtedtengine.cpp @@ -0,0 +1,1643 @@ +// 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 "xfa/fde/cfde_txtedtbuf.h" +#include "xfa/fde/cfde_txtedtbufiter.h" +#include "xfa/fde/ifx_chariter.h" +#include "xfa/fgas/layout/fgas_textbreak.h" +#include "xfa/fwl/basewidget/fwl_editimp.h" +#include "xfa/fde/cfde_txtedtdorecord_deleterange.h" +#include "xfa/fde/cfde_txtedtdorecord_insert.h" +#include "xfa/fde/cfde_txtedtparag.h" +#include "xfa/fde/cfde_txtedtpage.h" +#include "xfa/fde/tto/fde_textout.h" + +namespace { + +const uint32_t kPageWidthMax = 0xffff; +const uint32_t kUnicodeParagraphSeparator = 0x2029; + +} // namespace + +CFDE_TxtEdtEngine::CFDE_TxtEdtEngine() + : m_pTextBreak(nullptr), + m_nPageLineCount(20), + m_nLineCount(0), + m_nAnchorPos(-1), + m_nLayoutPos(0), + m_fCaretPosReserve(0.0), + m_nCaret(0), + m_bBefore(TRUE), + m_nCaretPage(0), + m_dwFindFlags(0), + m_bLock(FALSE), + m_nLimit(0), + m_wcAliasChar(L'*'), + m_nFirstLineEnd(FDE_TXTEDIT_LINEEND_Auto), + m_bAutoLineEnd(TRUE), + m_wLineEnd(kUnicodeParagraphSeparator) { + FXSYS_memset(&m_rtCaret, 0, sizeof(CFX_RectF)); + m_pTxtBuf = new CFDE_TxtEdtBuf(); + m_bAutoLineEnd = (m_Param.nLineEnd == FDE_TXTEDIT_LINEEND_Auto); +} + +CFDE_TxtEdtEngine::~CFDE_TxtEdtEngine() { + if (m_pTxtBuf) { + m_pTxtBuf->Release(); + m_pTxtBuf = NULL; + } + if (m_pTextBreak) { + m_pTextBreak->Release(); + m_pTextBreak = NULL; + } + RemoveAllParags(); + RemoveAllPages(); + m_Param.pEventSink = NULL; + ClearSelection(); +} + +void CFDE_TxtEdtEngine::Release() { + delete this; +} + +void CFDE_TxtEdtEngine::SetEditParams(const FDE_TXTEDTPARAMS& params) { + if (!m_pTextBreak) + m_pTextBreak = new CFX_TxtBreak(FX_TXTBREAKPOLICY_None); + + FXSYS_memcpy(&m_Param, ¶ms, sizeof(FDE_TXTEDTPARAMS)); + m_wLineEnd = params.wLineBreakChar; + m_bAutoLineEnd = (m_Param.nLineEnd == FDE_TXTEDIT_LINEEND_Auto); + UpdateTxtBreak(); +} + +FDE_TXTEDTPARAMS* CFDE_TxtEdtEngine::GetEditParams() { + return &m_Param; +} + +int32_t CFDE_TxtEdtEngine::CountPages() const { + if (m_nLineCount == 0) { + return 0; + } + return ((m_nLineCount - 1) / m_nPageLineCount) + 1; +} + +IFDE_TxtEdtPage* CFDE_TxtEdtEngine::GetPage(int32_t nIndex) { + if (m_PagePtrArray.GetSize() <= nIndex) { + return NULL; + } + return (IFDE_TxtEdtPage*)m_PagePtrArray[nIndex]; +} + +FX_BOOL CFDE_TxtEdtEngine::SetBufChunkSize(int32_t nChunkSize) { + return m_pTxtBuf->SetChunkSize(nChunkSize); +} + +void CFDE_TxtEdtEngine::SetTextByStream(IFX_Stream* pStream) { + ResetEngine(); + int32_t nIndex = 0; + if (pStream != NULL && pStream->GetLength()) { + int32_t nStreamLength = pStream->GetLength(); + FX_BOOL bValid = TRUE; + if (m_nLimit > 0 && nStreamLength > m_nLimit) { + bValid = FALSE; + } + FX_BOOL bPreIsCR = FALSE; + if (bValid) { + uint8_t bom[4]; + int32_t nPos = pStream->GetBOM(bom); + pStream->Seek(FX_STREAMSEEK_Begin, nPos); + int32_t nPlateSize = std::min(nStreamLength, m_pTxtBuf->GetChunkSize()); + FX_WCHAR* lpwstr = FX_Alloc(FX_WCHAR, nPlateSize); + FX_BOOL bEos = false; + while (!bEos) { + int32_t nRead = pStream->ReadString(lpwstr, nPlateSize, bEos); + bPreIsCR = ReplaceParagEnd(lpwstr, nRead, bPreIsCR); + m_pTxtBuf->Insert(nIndex, lpwstr, nRead); + nIndex += nRead; + } + FX_Free(lpwstr); + } + } + m_pTxtBuf->Insert(nIndex, &m_wLineEnd, 1); + RebuildParagraphs(); +} + +void CFDE_TxtEdtEngine::SetText(const CFX_WideString& wsText) { + ResetEngine(); + int32_t nLength = wsText.GetLength(); + if (nLength > 0) { + CFX_WideString wsTemp; + FX_WCHAR* lpBuffer = wsTemp.GetBuffer(nLength); + FXSYS_memcpy(lpBuffer, wsText.c_str(), nLength * sizeof(FX_WCHAR)); + 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, &m_wLineEnd, 1); + RebuildParagraphs(); +} + +int32_t CFDE_TxtEdtEngine::GetTextLength() const { + return GetTextBufLength(); +} + +void CFDE_TxtEdtEngine::GetText(CFX_WideString& wsText, + int32_t nStart, + int32_t nCount) { + int32_t nTextBufLength = GetTextBufLength(); + if (nCount == -1) { + nCount = nTextBufLength - nStart; + } + m_pTxtBuf->GetRange(wsText, nStart, nCount); + RecoverParagEnd(wsText); +} + +void CFDE_TxtEdtEngine::ClearText() { + DeleteRange(0, -1); +} + +int32_t CFDE_TxtEdtEngine::GetCaretRect(CFX_RectF& rtCaret) const { + rtCaret = m_rtCaret; + return m_nCaret; +} + +int32_t CFDE_TxtEdtEngine::GetCaretPos() const { + if (IsLocked()) { + return 0; + } + return m_nCaret + (m_bBefore ? 0 : 1); +} + +int32_t CFDE_TxtEdtEngine::SetCaretPos(int32_t nIndex, FX_BOOL bBefore) { + if (IsLocked()) { + return 0; + } + ASSERT(nIndex >= 0 && nIndex <= GetTextBufLength()); + if (m_PagePtrArray.GetSize() <= 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_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) + ? m_rtCaret.top + : m_rtCaret.left; + m_Param.pEventSink->On_CaretChanged(this, m_nCaretPage, 0); + m_nAnchorPos = -1; + return m_nCaret; +} + +int32_t CFDE_TxtEdtEngine::MoveCaretPos(FDE_TXTEDTMOVECARET eMoveCaret, + FX_BOOL bShift, + FX_BOOL bCtrl) { + if (IsLocked()) { + return 0; + } + if (m_PagePtrArray.GetSize() <= m_nCaretPage) { + return 0; + } + FX_BOOL bSelChange = FALSE; + if (IsSelect()) { + ClearSelection(); + bSelChange = TRUE; + } + if (bShift) { + if (m_nAnchorPos == -1) { + m_nAnchorPos = m_nCaret; + } + } else { + m_nAnchorPos = -1; + } + FX_BOOL bVertical = m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical; + switch (eMoveCaret) { + case MC_Left: { + if (bVertical) { + CFX_PointF ptCaret; + if (MoveUp(ptCaret)) { + UpdateCaretIndex(ptCaret); + } + } else { + FX_BOOL bBefore = TRUE; + int32_t nIndex = MoveBackward(bBefore); + if (nIndex >= 0) { + UpdateCaretRect(nIndex, bBefore); + } + } + } break; + case MC_Right: { + if (bVertical) { + CFX_PointF ptCaret; + if (MoveDown(ptCaret)) { + UpdateCaretIndex(ptCaret); + } + } else { + FX_BOOL bBefore = TRUE; + int32_t nIndex = MoveForward(bBefore); + if (nIndex >= 0) { + UpdateCaretRect(nIndex, bBefore); + } + } + } break; + case MC_Up: { + if (bVertical) { + FX_BOOL bBefore = TRUE; + int32_t nIndex = MoveBackward(bBefore); + if (nIndex >= 0) { + UpdateCaretRect(nIndex, bBefore); + } + } else { + CFX_PointF ptCaret; + if (MoveUp(ptCaret)) { + UpdateCaretIndex(ptCaret); + } + } + } break; + case MC_Down: { + if (bVertical) { + FX_BOOL bBefore = TRUE; + int32_t nIndex = MoveForward(bBefore); + if (nIndex >= 0) { + UpdateCaretRect(nIndex, bBefore); + } + } else { + CFX_PointF ptCaret; + if (MoveDown(ptCaret)) { + UpdateCaretIndex(ptCaret); + } + } + } break; + case MC_WordBackward: + break; + case MC_WordForward: + break; + case MC_LineStart: + MoveLineStart(); + break; + case MC_LineEnd: + MoveLineEnd(); + break; + case MC_ParagStart: + MoveParagStart(); + break; + case MC_ParagEnd: + MoveParagEnd(); + break; + case MC_PageDown: + break; + case MC_PageUp: + break; + case MC_Home: + MoveHome(); + break; + case MC_End: + MoveEnd(); + break; + default: + break; + } + if (bShift && m_nAnchorPos != -1 && (m_nAnchorPos != m_nCaret)) { + AddSelRange(std::min(m_nAnchorPos, m_nCaret), + FXSYS_abs(m_nAnchorPos - m_nCaret)); + m_Param.pEventSink->On_SelChanged(this); + } + if (bSelChange) { + m_Param.pEventSink->On_SelChanged(this); + } + return m_nCaret; +} + +void CFDE_TxtEdtEngine::Lock() { + m_bLock = TRUE; +} + +void CFDE_TxtEdtEngine::Unlock() { + m_bLock = FALSE; +} + +FX_BOOL CFDE_TxtEdtEngine::IsLocked() const { + return m_bLock; +} + +int32_t CFDE_TxtEdtEngine::Insert(int32_t nStart, + const FX_WCHAR* lpText, + int32_t nLength) { + if (IsLocked()) { + return FDE_TXTEDT_MODIFY_RET_F_Locked; + } + CFX_WideString wsTemp; + FX_WCHAR* lpBuffer = wsTemp.GetBuffer(nLength); + FXSYS_memcpy(lpBuffer, lpText, nLength * sizeof(FX_WCHAR)); + ReplaceParagEnd(lpBuffer, nLength, FALSE); + wsTemp.ReleaseBuffer(nLength); + FX_BOOL bPart = FALSE; + if (m_nLimit > 0) { + int32_t nTotalLength = GetTextBufLength(); + int32_t nCount = m_SelRangePtrArr.GetSize(); + for (int32_t i = 0; i < nCount; i++) { + FDE_TXTEDTSELRANGE* lpSelRange = m_SelRangePtrArr.GetAt(i); + nTotalLength -= lpSelRange->nCount; + } + int32_t nExpectLength = nTotalLength + nLength; + if (nTotalLength == m_nLimit) { + return FDE_TXTEDT_MODIFY_RET_F_Full; + } + if (nExpectLength > m_nLimit) { + nLength -= (nExpectLength - m_nLimit); + bPart = TRUE; + } + } + if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Vert) || + (m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Horz)) { + int32_t nTemp = nLength; + if (m_Param.dwMode & FDE_TEXTEDITMODE_Password) { + CFX_WideString wsText; + while (nLength > 0) { + GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength); + int32_t nTotal = wsText.GetLength(); + FX_WCHAR* 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 { + CFX_WideString wsText; + while (nLength > 0) { + GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength); + if (IsFitArea(wsText)) { + break; + } + nLength--; + } + } + if (nLength == 0) { + return FDE_TXTEDT_MODIFY_RET_F_Full; + } + if (nLength < nTemp) { + bPart = TRUE; + } + } + if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { + CFX_WideString wsText; + GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength); + if (!m_Param.pEventSink->On_Validate(this, wsText)) { + return FDE_TXTEDT_MODIFY_RET_F_Invalidate; + } + } + if (IsSelect()) { + DeleteSelect(); + } + if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) + m_Param.pEventSink->On_AddDoRecord( + this, + new CFDE_TxtEdtDoRecord_Insert(this, m_nCaret, lpBuffer, nLength)); + + GetText(m_ChangeInfo.wsPrevText, 0); + Inner_Insert(m_nCaret, lpBuffer, nLength); + m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Insert; + m_ChangeInfo.wsInsert = CFX_WideString(lpBuffer, nLength); + nStart = m_nCaret; + nStart += nLength; + FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nStart - 1); + FX_BOOL bBefore = TRUE; + if (wChar != L'\n' && wChar != L'\r') { + nStart--; + bBefore = FALSE; + } + SetCaretPos(nStart, bBefore); + m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo); + return bPart ? FDE_TXTEDT_MODIFY_RET_S_Part : FDE_TXTEDT_MODIFY_RET_S_Normal; +} + +int32_t CFDE_TxtEdtEngine::Delete(int32_t nStart, FX_BOOL bBackspace) { + if (IsLocked()) { + return FDE_TXTEDT_MODIFY_RET_F_Locked; + } + if (IsSelect()) { + DeleteSelect(); + return FDE_TXTEDT_MODIFY_RET_S_Normal; + } + + int32_t nCount = 1; + if (bBackspace) { + if (nStart == 0) { + return FDE_TXTEDT_MODIFY_RET_F_Boundary; + } + if (nStart > 2 && m_pTxtBuf->GetCharByIndex(nStart - 1) == L'\n' && + m_pTxtBuf->GetCharByIndex(nStart - 2) == L'\r') { + nStart--; + nCount++; + } + nStart--; + } else { + if (nStart == GetTextBufLength()) { + return FDE_TXTEDT_MODIFY_RET_F_Full; + } + if ((nStart + 1 < GetTextBufLength()) && + (m_pTxtBuf->GetCharByIndex(nStart) == L'\r') && + (m_pTxtBuf->GetCharByIndex(nStart + 1) == L'\n')) { + nCount++; + } + } + if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { + CFX_WideString wsText; + GetPreDeleteText(wsText, nStart, nCount); + if (!m_Param.pEventSink->On_Validate(this, wsText)) { + return FDE_TXTEDT_MODIFY_RET_F_Invalidate; + } + } + if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) { + CFX_WideString wsRange; + m_pTxtBuf->GetRange(wsRange, nStart, nCount); + m_Param.pEventSink->On_AddDoRecord( + this, + new CFDE_TxtEdtDoRecord_DeleteRange(this, nStart, m_nCaret, wsRange)); + } + m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Delete; + GetText(m_ChangeInfo.wsDelete, nStart, nCount); + Inner_DeleteRange(nStart, nCount); + SetCaretPos(nStart + ((!bBackspace && nStart > 0) ? -1 : 0), + (bBackspace || nStart == 0)); + m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo); + return FDE_TXTEDT_MODIFY_RET_S_Normal; +} + +int32_t CFDE_TxtEdtEngine::DeleteRange(int32_t nStart, int32_t nCount) { + if (IsLocked()) { + return FDE_TXTEDT_MODIFY_RET_F_Locked; + } + if (nCount == -1) { + nCount = GetTextBufLength(); + } + if (nCount == 0) { + return FDE_TXTEDT_MODIFY_RET_S_Normal; + } + if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { + CFX_WideString wsText; + GetPreDeleteText(wsText, nStart, nCount); + if (!m_Param.pEventSink->On_Validate(this, wsText)) { + return FDE_TXTEDT_MODIFY_RET_F_Invalidate; + } + } + DeleteRange_DoRecord(nStart, nCount); + m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo); + SetCaretPos(nStart, TRUE); + return FDE_TXTEDT_MODIFY_RET_S_Normal; +} + +int32_t CFDE_TxtEdtEngine::Replace(int32_t nStart, + int32_t nLength, + const CFX_WideString& wsReplace) { + if (IsLocked()) { + return FDE_TXTEDT_MODIFY_RET_F_Locked; + } + if (nStart < 0 || (nStart + nLength > GetTextBufLength())) { + return FDE_TXTEDT_MODIFY_RET_F_Boundary; + } + if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) { + CFX_WideString wsText; + GetPreReplaceText(wsText, nStart, nLength, wsReplace.c_str(), + wsReplace.GetLength()); + if (!m_Param.pEventSink->On_Validate(this, wsText)) { + return FDE_TXTEDT_MODIFY_RET_F_Invalidate; + } + } + if (IsSelect()) { + ClearSelection(); + } + m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Replace; + GetText(m_ChangeInfo.wsDelete, nStart, nLength); + if (nLength > 0) { + Inner_DeleteRange(nStart, nLength); + } + int32_t nTextLength = wsReplace.GetLength(); + if (nTextLength > 0) { + Inner_Insert(nStart, wsReplace.c_str(), nTextLength); + } + m_ChangeInfo.wsInsert = CFX_WideString(wsReplace.c_str(), nTextLength); + nStart += nTextLength; + FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nStart - 1); + FX_BOOL bBefore = TRUE; + if (wChar != L'\n' && wChar != L'\r') { + nStart--; + bBefore = FALSE; + } + SetCaretPos(nStart, bBefore); + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); + m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo); + return FDE_TXTEDT_MODIFY_RET_S_Normal; +} + +void CFDE_TxtEdtEngine::SetLimit(int32_t nLimit) { + m_nLimit = nLimit; +} + +void CFDE_TxtEdtEngine::SetAliasChar(FX_WCHAR wcAlias) { + m_wcAliasChar = wcAlias; +} + +void CFDE_TxtEdtEngine::RemoveSelRange(int32_t nStart, int32_t nCount) { + FDE_TXTEDTSELRANGE* lpTemp = nullptr; + int32_t nRangeCount = m_SelRangePtrArr.GetSize(); + int32_t i = 0; + for (i = 0; i < nRangeCount; i++) { + lpTemp = m_SelRangePtrArr[i]; + if (lpTemp->nStart == nStart && lpTemp->nCount == nCount) { + delete lpTemp; + m_SelRangePtrArr.RemoveAt(i); + return; + } + } +} + +void CFDE_TxtEdtEngine::AddSelRange(int32_t nStart, int32_t nCount) { + if (nCount == -1) { + nCount = GetTextLength() - nStart; + } + int32_t nSize = m_SelRangePtrArr.GetSize(); + if (nSize <= 0) { + FDE_TXTEDTSELRANGE* lpSelRange = new FDE_TXTEDTSELRANGE; + lpSelRange->nStart = nStart; + lpSelRange->nCount = nCount; + m_SelRangePtrArr.Add(lpSelRange); + m_Param.pEventSink->On_SelChanged(this); + return; + } + FDE_TXTEDTSELRANGE* lpTemp = nullptr; + lpTemp = m_SelRangePtrArr[nSize - 1]; + if (nStart >= lpTemp->nStart + lpTemp->nCount) { + FDE_TXTEDTSELRANGE* lpSelRange = new FDE_TXTEDTSELRANGE; + lpSelRange->nStart = nStart; + lpSelRange->nCount = nCount; + m_SelRangePtrArr.Add(lpSelRange); + m_Param.pEventSink->On_SelChanged(this); + return; + } + int32_t nEnd = nStart + nCount - 1; + FX_BOOL bBegin = FALSE; + int32_t nRangeBgn = 0; + int32_t nRangeCnt = 0; + for (int32_t i = 0; i < nSize; i++) { + lpTemp = m_SelRangePtrArr[i]; + 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) { + FDE_TXTEDTSELRANGE* lpSelRange = new FDE_TXTEDTSELRANGE; + lpSelRange->nStart = nStart; + lpSelRange->nCount = nCount; + m_SelRangePtrArr.InsertAt(nRangeBgn, lpSelRange); + } else { + lpTemp = m_SelRangePtrArr[nRangeBgn]; + lpTemp->nStart = nStart; + lpTemp->nCount = nCount; + nRangeCnt--; + nRangeBgn++; + while (nRangeCnt--) { + delete m_SelRangePtrArr[nRangeBgn]; + m_SelRangePtrArr.RemoveAt(nRangeBgn); + } + } + m_Param.pEventSink->On_SelChanged(this); +} + +int32_t CFDE_TxtEdtEngine::CountSelRanges() { + return m_SelRangePtrArr.GetSize(); +} + +int32_t CFDE_TxtEdtEngine::GetSelRange(int32_t nIndex, int32_t& nStart) { + nStart = m_SelRangePtrArr[nIndex]->nStart; + return m_SelRangePtrArr[nIndex]->nCount; +} + +void CFDE_TxtEdtEngine::ClearSelection() { + int32_t nCount = m_SelRangePtrArr.GetSize(); + for (int i = 0; i < nCount; ++i) + delete m_SelRangePtrArr[i]; + m_SelRangePtrArr.RemoveAll(); + if (nCount && m_Param.pEventSink) + m_Param.pEventSink->On_SelChanged(this); +} + +FX_BOOL CFDE_TxtEdtEngine::Redo(const IFDE_TxtEdtDoRecord* pDoRecord) { + if (IsLocked()) + return FALSE; + if (m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo) + return FALSE; + return pDoRecord->Redo(); +} + +FX_BOOL CFDE_TxtEdtEngine::Undo(const IFDE_TxtEdtDoRecord* pDoRecord) { + if (IsLocked()) + return FALSE; + if (m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo) + return FALSE; + return pDoRecord->Undo(); +} + +int32_t CFDE_TxtEdtEngine::StartLayout() { + Lock(); + RemoveAllPages(); + m_nLayoutPos = 0; + m_nLineCount = 0; + return 0; +} + +int32_t CFDE_TxtEdtEngine::DoLayout(IFX_Pause* pPause) { + int32_t nCount = m_ParagPtrArray.GetSize(); + CFDE_TxtEdtParag* pParag = NULL; + int32_t nLineCount = 0; + for (; m_nLayoutPos < nCount; m_nLayoutPos++) { + pParag = m_ParagPtrArray[m_nLayoutPos]; + pParag->CalcLines(); + nLineCount += pParag->GetLineCount(); + if ((pPause != NULL) && (nLineCount > m_nPageLineCount) && + pPause->NeedToPauseNow()) { + m_nLineCount += nLineCount; + return (++m_nLayoutPos * 100) / nCount; + } + } + m_nLineCount += nLineCount; + return 100; +} + +void CFDE_TxtEdtEngine::EndLayout() { + UpdatePages(); + int32_t nLength = GetTextLength(); + if (m_nCaret > nLength) { + m_nCaret = nLength; + } + int32_t nIndex = m_nCaret; + if (!m_bBefore) { + nIndex--; + } + m_rtCaret.Set(0, 0, 1, m_Param.fFontSize); + Unlock(); +} + +FX_BOOL CFDE_TxtEdtEngine::Optimize(IFX_Pause* pPause) { + return m_pTxtBuf->Optimize(pPause); +} + +CFDE_TxtEdtBuf* CFDE_TxtEdtEngine::GetTextBuf() const { + return m_pTxtBuf; +} + +int32_t CFDE_TxtEdtEngine::GetTextBufLength() const { + return m_pTxtBuf->GetTextLength() - 1; +} + +CFX_TxtBreak* CFDE_TxtEdtEngine::GetTextBreak() const { + return m_pTextBreak; +} + +int32_t CFDE_TxtEdtEngine::GetLineCount() const { + return m_nLineCount; +} + +int32_t CFDE_TxtEdtEngine::GetPageLineCount() const { + return m_nPageLineCount; +} + +int32_t CFDE_TxtEdtEngine::CountParags() const { + return m_ParagPtrArray.GetSize(); +} + +CFDE_TxtEdtParag* CFDE_TxtEdtEngine::GetParag(int32_t nParagIndex) const { + return m_ParagPtrArray[nParagIndex]; +} + +IFX_CharIter* CFDE_TxtEdtEngine::CreateCharIter() { + if (!m_pTxtBuf) { + return NULL; + } + return new CFDE_TxtEdtBufIter((CFDE_TxtEdtBuf*)m_pTxtBuf); +} + +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 = m_ParagPtrArray.GetSize(); + CFDE_TxtEdtParag* pParag = NULL; + int32_t i = nStartParag; + for (; i < nCount; i++) { + pParag = m_ParagPtrArray[i]; + nLineTotal += pParag->GetLineCount(); + if (nLineTotal > nLineIndex) { + break; + } + } + nStartLine = nLineTotal - pParag->GetLineCount(); + return i; +} + +void CFDE_TxtEdtEngine::GetPreDeleteText(CFX_WideString& wsText, + int32_t nIndex, + int32_t nLength) { + GetText(wsText, 0, GetTextBufLength()); + wsText.Delete(nIndex, nLength); +} + +void CFDE_TxtEdtEngine::GetPreInsertText(CFX_WideString& wsText, + int32_t nIndex, + const FX_WCHAR* lpText, + int32_t nLength) { + GetText(wsText, 0, GetTextBufLength()); + 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 FX_WCHAR* pOldBuffer = wsText.c_str(); + FX_WCHAR* lpBuffer = wsTemp.GetBuffer(nOldLength + nLength); + FXSYS_memcpy(lpBuffer, pOldBuffer, (nIndex) * sizeof(FX_WCHAR)); + FXSYS_memcpy(lpBuffer + nIndex, lpText, nLength * sizeof(FX_WCHAR)); + FXSYS_memcpy(lpBuffer + nIndex + nLength, pOldBuffer + nIndex, + (nOldLength - nIndex) * sizeof(FX_WCHAR)); + wsTemp.ReleaseBuffer(nOldLength + nLength); + wsText = wsTemp; +} + +void CFDE_TxtEdtEngine::GetPreReplaceText(CFX_WideString& wsText, + int32_t nIndex, + int32_t nOriginLength, + const FX_WCHAR* lpText, + int32_t nLength) { + GetText(wsText, 0, GetTextBufLength()); + int32_t nSelIndex = 0; + int32_t nSelLength = 0; + int32_t nSelCount = CountSelRanges(); + while (nSelCount--) { + nSelLength = GetSelRange(nSelCount, nSelIndex); + wsText.Delete(nSelIndex, nSelLength); + } + wsText.Delete(nIndex, nOriginLength); + int32_t i = 0; + for (i = 0; i < nLength; i++) { + wsText.Insert(nIndex++, lpText[i]); + } +} + +void CFDE_TxtEdtEngine::Inner_Insert(int32_t nStart, + const FX_WCHAR* lpText, + int32_t nLength) { + ASSERT(nLength > 0); + FDE_TXTEDTPARAGPOS ParagPos; + TextPos2ParagPos(nStart, ParagPos); + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); + int32_t nParagCount = m_ParagPtrArray.GetSize(); + int32_t i = 0; + for (i = ParagPos.nParagIndex + 1; i < nParagCount; i++) + m_ParagPtrArray[i]->IncrementStartIndex(nLength); + + CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex]; + 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; + FX_WCHAR wCurChar = L' '; + const FX_WCHAR* lpPos = lpText; + FX_BOOL bFirst = TRUE; + int32_t nParagIndex = ParagPos.nParagIndex; + for (i = 0; i < nLength; i++, lpPos++) { + wCurChar = *lpPos; + if (wCurChar == m_wLineEnd) { + if (bFirst) { + pParag->SetTextLength(nLeavePart + (i - nTextStart + 1)); + pParag->SetLineCount(-1); + nReserveCharStart += pParag->GetTextLength(); + bFirst = FALSE; + } else { + pParag = new CFDE_TxtEdtParag(this); + pParag->SetLineCount(-1); + pParag->SetTextLength(i - nTextStart + 1); + pParag->SetStartIndex(nReserveCharStart); + m_ParagPtrArray.InsertAt(++nParagIndex, pParag); + nReserveCharStart += pParag->GetTextLength(); + } + nTextStart = i + 1; + } + } + if (bFirst) { + pParag->IncrementTextLength(nLength); + pParag->SetLineCount(-1); + bFirst = FALSE; + } else { + pParag = new CFDE_TxtEdtParag(this); + pParag->SetLineCount(-1); + pParag->SetTextLength(nLength - nTextStart + nCutPart); + pParag->SetStartIndex(nReserveCharStart); + m_ParagPtrArray.InsertAt(++nParagIndex, pParag); + } + m_pTxtBuf->Insert(nStart, lpText, nLength); + int32_t nTotalLineCount = 0; + for (i = ParagPos.nParagIndex; i <= nParagIndex; i++) { + pParag = m_ParagPtrArray[i]; + pParag->CalcLines(); + nTotalLineCount += pParag->GetLineCount(); + } + m_nLineCount += nTotalLineCount - nReserveLineCount; + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); + 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()); + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); + FDE_TXTEDTPARAGPOS ParagPosBgn, ParagPosEnd; + TextPos2ParagPos(nStart, ParagPosBgn); + TextPos2ParagPos(nEnd, ParagPosEnd); + CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPosEnd.nParagIndex]; + FX_BOOL bLastParag = FALSE; + if (ParagPosEnd.nCharIndex == pParag->GetTextLength() - 1) { + if (ParagPosEnd.nParagIndex < m_ParagPtrArray.GetSize() - 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* pParag = m_ParagPtrArray[i]; + pParag->CalcLines(); + nTotalLineCount += pParag->GetLineCount(); + nTotalCharCount += pParag->GetTextLength(); + } + m_pTxtBuf->Delete(nStart, nCount); + int32_t nNextParagIndex = (ParagPosBgn.nCharIndex == 0 && bLastParag) + ? ParagPosBgn.nParagIndex + : (ParagPosBgn.nParagIndex + 1); + for (i = nNextParagIndex; i <= ParagPosEnd.nParagIndex; i++) { + delete m_ParagPtrArray[nNextParagIndex]; + m_ParagPtrArray.RemoveAt(nNextParagIndex); + } + if (!(bLastParag && ParagPosBgn.nCharIndex == 0)) { + pParag = m_ParagPtrArray[ParagPosBgn.nParagIndex]; + pParag->SetTextLength(nTotalCharCount - nCount); + pParag->CalcLines(); + nTotalLineCount -= pParag->GetTextLength(); + } + int32_t nParagCount = m_ParagPtrArray.GetSize(); + 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; + } + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); +} + +void CFDE_TxtEdtEngine::DeleteRange_DoRecord(int32_t nStart, + int32_t nCount, + FX_BOOL bSel) { + ASSERT(nStart >= 0); + if (nCount == -1) { + nCount = GetTextLength() - nStart; + } + ASSERT((nStart + nCount) <= m_pTxtBuf->GetTextLength()); + + if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) { + CFX_WideString wsRange; + m_pTxtBuf->GetRange(wsRange, nStart, nCount); + m_Param.pEventSink->On_AddDoRecord( + this, new CFDE_TxtEdtDoRecord_DeleteRange(this, nStart, m_nCaret, + wsRange, bSel)); + } + m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Delete; + GetText(m_ChangeInfo.wsDelete, nStart, nCount); + Inner_DeleteRange(nStart, nCount); +} + +void CFDE_TxtEdtEngine::ResetEngine() { + RemoveAllPages(); + RemoveAllParags(); + ClearSelection(); + m_nCaret = 0; + m_pTxtBuf->Clear(FALSE); + m_nCaret = 0; +} + +void CFDE_TxtEdtEngine::RebuildParagraphs() { + RemoveAllParags(); + FX_WCHAR wChar = L' '; + int32_t nParagStart = 0; + int32_t nIndex = 0; + std::unique_ptr<IFX_CharIter> pIter( + new CFDE_TxtEdtBufIter(static_cast<CFDE_TxtEdtBuf*>(m_pTxtBuf))); + pIter->SetAt(0); + do { + wChar = pIter->GetChar(); + nIndex = pIter->GetAt(); + if (wChar == m_wLineEnd) { + CFDE_TxtEdtParag* pParag = new CFDE_TxtEdtParag(this); + pParag->SetStartIndex(nParagStart); + pParag->SetTextLength(nIndex - nParagStart + 1); + pParag->SetLineCount(-1); + m_ParagPtrArray.Add(pParag); + nParagStart = nIndex + 1; + } + } while (pIter->Next()); +} + +void CFDE_TxtEdtEngine::RemoveAllParags() { + int32_t nCount = m_ParagPtrArray.GetSize(); + for (int i = 0; i < nCount; ++i) + delete m_ParagPtrArray[i]; + m_ParagPtrArray.RemoveAll(); +} + +void CFDE_TxtEdtEngine::RemoveAllPages() { + int32_t nCount = m_PagePtrArray.GetSize(); + int32_t i = 0; + for (i = 0; i < nCount; i++) { + IFDE_TxtEdtPage* pPage = m_PagePtrArray[i]; + if (pPage) { + pPage->Release(); + } + } + m_PagePtrArray.RemoveAll(); +} + +void CFDE_TxtEdtEngine::UpdateParags() { + int32_t nCount = m_ParagPtrArray.GetSize(); + if (nCount == 0) { + return; + } + CFDE_TxtEdtParag* pParag = NULL; + int32_t nLineCount = 0; + int32_t i = 0; + for (i = 0; i < nCount; i++) { + pParag = m_ParagPtrArray[i]; + if (pParag->GetLineCount() == -1) + 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 = m_PagePtrArray.GetSize(); + if (nSize == nPageCount) + return; + + if (nSize > nPageCount) { + IFDE_TxtEdtPage* pPage = NULL; + int32_t i = 0; + for (i = nSize - 1; i >= nPageCount; i--) { + pPage = m_PagePtrArray[i]; + if (pPage) { + pPage->Release(); + } + m_PagePtrArray.RemoveAt(i); + } + return; + } + if (nSize < nPageCount) { + IFDE_TxtEdtPage* pPage = NULL; + int32_t i = 0; + for (i = nSize; i < nPageCount; i++) { + pPage = IFDE_TxtEdtPage::Create(this, i); + m_PagePtrArray.Add(pPage); + } + return; + } +} + +void CFDE_TxtEdtEngine::UpdateTxtBreak() { + uint32_t dwStyle = m_pTextBreak->GetLayoutStyles(); + if (m_Param.dwMode & FDE_TEXTEDITMODE_MultiLines) { + dwStyle &= ~FX_TXTLAYOUTSTYLE_SingleLine; + } else { + dwStyle |= FX_TXTLAYOUTSTYLE_SingleLine; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) { + dwStyle |= FX_TXTLAYOUTSTYLE_VerticalLayout; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_VerticalLayout; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_LineReserve) { + dwStyle |= FX_TXTLAYOUTSTYLE_ReverseLine; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_ReverseLine; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_RTL) { + dwStyle |= FX_TXTLAYOUTSTYLE_RTLReadingOrder; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_RTLReadingOrder; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CombText) { + dwStyle |= FX_TXTLAYOUTSTYLE_CombText; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_CombText; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CharVertial) { + dwStyle |= FX_TXTLAYOUTSTYLE_VerticalChars; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_VerticalChars; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_ExpandTab) { + dwStyle |= FX_TXTLAYOUTSTYLE_ExpandTab; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_ExpandTab; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_ArabicContext) { + dwStyle |= FX_TXTLAYOUTSTYLE_ArabicContext; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_ArabicContext; + } + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_ArabicShapes) { + dwStyle |= FX_TXTLAYOUTSTYLE_ArabicShapes; + } else { + dwStyle &= ~FX_TXTLAYOUTSTYLE_ArabicShapes; + } + m_pTextBreak->SetLayoutStyles(dwStyle); + uint32_t dwAligment = 0; + if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Justified) { + dwAligment |= FX_TXTLINEALIGNMENT_Justified; + } else if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Distributed) { + dwAligment |= FX_TXTLINEALIGNMENT_Distributed; + } + if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Center) { + dwAligment |= FX_TXTLINEALIGNMENT_Center; + } else if (m_Param.dwAlignment & FDE_TEXTEDITALIGN_Right) { + dwAligment |= FX_TXTLINEALIGNMENT_Right; + } + m_pTextBreak->SetAlignment(dwAligment); + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) { + if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) { + m_pTextBreak->SetLineWidth(m_Param.fPlateHeight); + } else { + m_pTextBreak->SetLineWidth(kPageWidthMax); + } + } else { + if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) { + m_pTextBreak->SetLineWidth(m_Param.fPlateWidth); + } else { + m_pTextBreak->SetLineWidth(kPageWidthMax); + } + } + m_nPageLineCount = m_Param.nLineCount; + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_CombText) { + FX_FLOAT fCombWidth = + m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical + ? m_Param.fPlateHeight + : m_Param.fPlateWidth; + if (m_nLimit > 0) { + fCombWidth /= m_nLimit; + } + m_pTextBreak->SetCombWidth(fCombWidth); + } + m_pTextBreak->SetFont(m_Param.pFont); + m_pTextBreak->SetFontSize(m_Param.fFontSize); + m_pTextBreak->SetTabWidth(m_Param.fTabWidth, m_Param.bTabEquidistant); + m_pTextBreak->SetDefaultChar(m_Param.wDefChar); + m_pTextBreak->SetParagraphBreakChar(m_Param.wLineBreakChar); + m_pTextBreak->SetCharRotation(m_Param.nCharRotation); + m_pTextBreak->SetLineBreakTolerance(m_Param.fFontSize * 0.2f); + m_pTextBreak->SetHorizontalScale(m_Param.nHorzScale); + m_pTextBreak->SetCharSpace(m_Param.fCharSpace); +} + +FX_BOOL CFDE_TxtEdtEngine::ReplaceParagEnd(FX_WCHAR*& lpText, + int32_t& nLength, + FX_BOOL bPreIsCR) { + for (int32_t i = 0; i < nLength; i++) { + FX_WCHAR wc = lpText[i]; + switch (wc) { + case L'\r': { + lpText[i] = m_wLineEnd; + bPreIsCR = TRUE; + } break; + case L'\n': { + if (bPreIsCR == TRUE) { + int32_t nNext = i + 1; + if (nNext < nLength) { + FXSYS_memmove(lpText + i, lpText + nNext, + (nLength - nNext) * sizeof(FX_WCHAR)); + } + i--; + nLength--; + bPreIsCR = FALSE; + if (m_bAutoLineEnd) { + m_nFirstLineEnd = FDE_TXTEDIT_LINEEND_CRLF; + m_bAutoLineEnd = FALSE; + } + } else { + lpText[i] = m_wLineEnd; + if (m_bAutoLineEnd) { + m_nFirstLineEnd = FDE_TXTEDIT_LINEEND_LF; + m_bAutoLineEnd = FALSE; + } + } + } break; + default: { + if (bPreIsCR && m_bAutoLineEnd) { + m_nFirstLineEnd = FDE_TXTEDIT_LINEEND_CR; + m_bAutoLineEnd = FALSE; + } + bPreIsCR = FALSE; + } break; + } + } + return bPreIsCR; +} + +void CFDE_TxtEdtEngine::RecoverParagEnd(CFX_WideString& wsText) { + FX_WCHAR wc = (m_nFirstLineEnd == FDE_TXTEDIT_LINEEND_CR) ? L'\n' : L'\r'; + if (m_nFirstLineEnd == FDE_TXTEDIT_LINEEND_CRLF) { + CFX_ArrayTemplate<int32_t> PosArr; + int32_t nLength = wsText.GetLength(); + int32_t i = 0; + FX_WCHAR* lpPos = const_cast<FX_WCHAR*>(wsText.c_str()); + for (i = 0; i < nLength; i++, lpPos++) { + if (*lpPos == m_wLineEnd) { + *lpPos = wc; + PosArr.Add(i); + } + } + const FX_WCHAR* lpSrcBuf = wsText.c_str(); + CFX_WideString wsTemp; + int32_t nCount = PosArr.GetSize(); + FX_WCHAR* lpDstBuf = wsTemp.GetBuffer(nLength + nCount); + int32_t nDstPos = 0; + int32_t nSrcPos = 0; + for (i = 0; i < nCount; i++) { + int32_t nPos = PosArr[i]; + int32_t nCopyLen = nPos - nSrcPos + 1; + FXSYS_memcpy(lpDstBuf + nDstPos, lpSrcBuf + nSrcPos, + nCopyLen * sizeof(FX_WCHAR)); + nDstPos += nCopyLen; + nSrcPos += nCopyLen; + lpDstBuf[nDstPos] = L'\n'; + nDstPos++; + } + if (nSrcPos < nLength) { + FXSYS_memcpy(lpDstBuf + nDstPos, lpSrcBuf + nSrcPos, + (nLength - nSrcPos) * sizeof(FX_WCHAR)); + } + wsTemp.ReleaseBuffer(nLength + nCount); + wsText = wsTemp; + } else { + int32_t nLength = wsText.GetLength(); + FX_WCHAR* lpBuf = const_cast<FX_WCHAR*>(wsText.c_str()); + for (int32_t i = 0; i < nLength; i++, lpBuf++) { + if (*lpBuf == m_wLineEnd) + *lpBuf = wc; + } + } +} + +int32_t CFDE_TxtEdtEngine::MovePage2Char(int32_t nIndex) { + ASSERT(nIndex >= 0); + ASSERT(nIndex <= m_pTxtBuf->GetTextLength()); + if (m_nCaretPage >= 0) { + IFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage]; + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); + int32_t nPageCharStart = pPage->GetCharStart(); + int32_t nPageCharCount = pPage->GetCharCount(); + if (nIndex >= nPageCharStart && nIndex < nPageCharStart + nPageCharCount) { + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); + return m_nCaretPage; + } + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); + } + CFDE_TxtEdtParag* pParag = NULL; + int32_t nLineCount = 0; + int32_t nParagCount = m_ParagPtrArray.GetSize(); + int32_t i = 0; + for (i = 0; i < nParagCount; i++) { + pParag = m_ParagPtrArray[i]; + 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 = m_ParagPtrArray.GetSize(); + 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]; + 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(FX_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(FX_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; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveUp(CFX_PointF& ptCaret) { + IFDE_TxtEdtPage* pPage = GetPage(m_nCaretPage); + const CFX_RectF& rtContent = pPage->GetContentsBox(); + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) { + ptCaret.x = m_rtCaret.left + m_rtCaret.width / 2 - m_Param.fLineSpace; + ptCaret.y = m_fCaretPosReserve; + FX_BOOL bLineReserve = + m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_LineReserve; + if (ptCaret.x < rtContent.left) { + if (bLineReserve) { + if (m_nCaretPage == CountPages() - 1) { + return FALSE; + } + } else { + if (m_nCaretPage == 0) { + return FALSE; + } + } + if (bLineReserve) { + m_nCaretPage++; + } else { + m_nCaretPage--; + } + ptCaret.x -= rtContent.left; + IFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); + ptCaret.x += pCurPage->GetContentsBox().right(); + } + } else { + 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--; + IFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); + ptCaret.y += pCurPage->GetContentsBox().bottom(); + } + } + return TRUE; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveDown(CFX_PointF& ptCaret) { + IFDE_TxtEdtPage* pPage = GetPage(m_nCaretPage); + const CFX_RectF& rtContent = pPage->GetContentsBox(); + if (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) { + ptCaret.x = m_rtCaret.left + m_rtCaret.width / 2 + m_Param.fLineSpace; + ptCaret.y = m_fCaretPosReserve; + if (ptCaret.x >= rtContent.right()) { + FX_BOOL bLineReserve = + m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_LineReserve; + if (bLineReserve) { + if (m_nCaretPage == 0) { + return FALSE; + } + } else { + if (m_nCaretPage == CountPages() - 1) { + return FALSE; + } + } + if (bLineReserve) { + m_nCaretPage--; + } else { + m_nCaretPage++; + } + ptCaret.x -= rtContent.right(); + IFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); + ptCaret.x += pCurPage->GetContentsBox().left; + } + } else { + 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++; + IFDE_TxtEdtPage* pCurPage = GetPage(m_nCaretPage); + ptCaret.y += pCurPage->GetContentsBox().top; + } + } + return TRUE; +} + +FX_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]; + 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; +} + +FX_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]; + 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 <= GetTextBufLength()); + FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nIndex); + FX_BOOL bBefore = FALSE; + if (nIndex <= GetTextBufLength()) { + 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; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveParagStart() { + int32_t nIndex = m_bBefore ? m_nCaret : m_nCaret - 1; + FDE_TXTEDTPARAGPOS ParagPos; + TextPos2ParagPos(nIndex, ParagPos); + CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex]; + UpdateCaretRect(pParag->GetStartIndex(), TRUE); + return TRUE; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveParagEnd() { + int32_t nIndex = m_bBefore ? m_nCaret : m_nCaret - 1; + FDE_TXTEDTPARAGPOS ParagPos; + TextPos2ParagPos(nIndex, ParagPos); + CFDE_TxtEdtParag* pParag = m_ParagPtrArray[ParagPos.nParagIndex]; + nIndex = pParag->GetStartIndex() + pParag->GetTextLength() - 1; + FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nIndex); + if (wChar == L'\n' && nIndex > 0) { + nIndex--; + wChar = m_pTxtBuf->GetCharByIndex(nIndex); + if (wChar != L'\r') { + nIndex++; + } + } + UpdateCaretRect(nIndex, TRUE); + return TRUE; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveHome() { + UpdateCaretRect(0, TRUE); + return TRUE; +} + +FX_BOOL CFDE_TxtEdtEngine::MoveEnd() { + UpdateCaretRect(GetTextBufLength(), TRUE); + return TRUE; +} + +FX_BOOL CFDE_TxtEdtEngine::IsFitArea(CFX_WideString& wsText) { + std::unique_ptr<CFDE_TextOut> pTextOut(new CFDE_TextOut); + pTextOut->SetLineSpace(m_Param.fLineSpace); + pTextOut->SetFont(m_Param.pFont); + pTextOut->SetFontSize(m_Param.fFontSize); + CFX_RectF rcText; + FXSYS_memset(&rcText, 0, sizeof(rcText)); + uint32_t dwStyle = 0; + if (!(m_Param.dwMode & FDE_TEXTEDITMODE_MultiLines)) + dwStyle |= FDE_TTOSTYLE_SingleLine; + + if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) { + dwStyle |= FDE_TTOSTYLE_LineWrap; + rcText.width = m_Param.fPlateWidth; + } else { + rcText.width = 65535; + } + pTextOut->SetStyles(dwStyle); + wsText += L"\n"; + pTextOut->CalcLogicSize(wsText.c_str(), wsText.GetLength(), 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, FX_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_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) + ? m_rtCaret.top + : m_rtCaret.left; + m_Param.pEventSink->On_CaretChanged(this, m_nCaretPage, 0); +} + +void CFDE_TxtEdtEngine::GetCaretRect(CFX_RectF& rtCaret, + int32_t nPageIndex, + int32_t nCaret, + FX_BOOL bBefore) { + IFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage]; + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); + FX_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 (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical) { + if ((!FX_IsOdd(nBIDILevel) && !bBefore) || + (FX_IsOdd(nBIDILevel) && bBefore)) { + rtCaret.Offset(0, rtCaret.height - 1.0f); + } + if (rtCaret.height == 0 && rtCaret.top > 1.0f) + rtCaret.top -= 1.0f; + + rtCaret.height = 1.0f; + } else { + 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; + } + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); +} + +void CFDE_TxtEdtEngine::UpdateCaretIndex(const CFX_PointF& ptCaret) { + IFDE_TxtEdtPage* pPage = m_PagePtrArray[m_nCaretPage]; + m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0); + 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->On_CaretChanged(this, m_nCaretPage); + m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0); +} + +FX_BOOL CFDE_TxtEdtEngine::IsSelect() { + return m_SelRangePtrArr.GetSize() > 0; +} + +void CFDE_TxtEdtEngine::DeleteSelect() { + int32_t nCountRange = CountSelRanges(); + if (nCountRange > 0) { + int32_t nSelStart; + int32_t nSelCount; + while (nCountRange > 0) { + nSelCount = GetSelRange(--nCountRange, nSelStart); + delete m_SelRangePtrArr[nCountRange]; + m_SelRangePtrArr.RemoveAt(nCountRange); + DeleteRange_DoRecord(nSelStart, nSelCount, TRUE); + } + ClearSelection(); + m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo); + m_Param.pEventSink->On_SelChanged(this); + SetCaretPos(nSelStart, TRUE); + return; + } +} |