// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fde/cfde_txtedtengine.h"
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#include "xfa/fde/cfde_txtedtbuf.h"
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#include "xfa/fde/cfde_txtedtbufiter.h"
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#include "xfa/fde/ifx_chariter.h"
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#include "xfa/fgas/layout/fgas_textbreak.h"
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#include "xfa/fwl/basewidget/fwl_editimp.h"
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#include "xfa/fde/cfde_txtedtdorecord_deleterange.h"
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#include "xfa/fde/cfde_txtedtdorecord_insert.h"
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#include "xfa/fde/cfde_txtedtparag.h"
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#include "xfa/fde/cfde_txtedtpage.h"
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#include "xfa/fde/tto/fde_textout.h"
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namespace {
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const uint32_t kPageWidthMax = 0xffff;
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const uint32_t kUnicodeParagraphSeparator = 0x2029;
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} // namespace
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FDE_TXTEDTPARAMS::FDE_TXTEDTPARAMS()
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: fPlateWidth(0),
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fPlateHeight(0),
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nLineCount(0),
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dwLayoutStyles(0),
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dwAlignment(0),
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dwMode(0),
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pFont(nullptr),
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fFontSize(10.0f),
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dwFontColor(0xff000000),
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fLineSpace(10.0f),
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fTabWidth(36),
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bTabEquidistant(FALSE),
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wDefChar(0xFEFF),
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wLineBreakChar('\n'),
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nCharRotation(0),
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nLineEnd(0),
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nHorzScale(100),
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fCharSpace(0),
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pEventSink(nullptr) {}
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FDE_TXTEDT_TEXTCHANGE_INFO::FDE_TXTEDT_TEXTCHANGE_INFO() {}
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FDE_TXTEDT_TEXTCHANGE_INFO::~FDE_TXTEDT_TEXTCHANGE_INFO() {}
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CFDE_TxtEdtEngine::CFDE_TxtEdtEngine()
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: m_pTextBreak(nullptr),
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m_nPageLineCount(20),
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m_nLineCount(0),
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m_nAnchorPos(-1),
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m_nLayoutPos(0),
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m_fCaretPosReserve(0.0),
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m_nCaret(0),
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m_bBefore(TRUE),
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m_nCaretPage(0),
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m_dwFindFlags(0),
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m_bLock(FALSE),
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m_nLimit(0),
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m_wcAliasChar(L'*'),
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m_nFirstLineEnd(FDE_TXTEDIT_LINEEND_Auto),
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m_bAutoLineEnd(TRUE),
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m_wLineEnd(kUnicodeParagraphSeparator) {
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FXSYS_memset(&m_rtCaret, 0, sizeof(CFX_RectF));
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m_pTxtBuf = new CFDE_TxtEdtBuf();
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m_bAutoLineEnd = (m_Param.nLineEnd == FDE_TXTEDIT_LINEEND_Auto);
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}
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CFDE_TxtEdtEngine::~CFDE_TxtEdtEngine() {
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delete m_pTxtBuf;
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delete m_pTextBreak;
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RemoveAllParags();
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RemoveAllPages();
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m_Param.pEventSink = nullptr;
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ClearSelection();
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}
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void CFDE_TxtEdtEngine::SetEditParams(const FDE_TXTEDTPARAMS& params) {
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if (!m_pTextBreak)
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m_pTextBreak = new CFX_TxtBreak(FX_TXTBREAKPOLICY_None);
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FXSYS_memcpy(&m_Param, ¶ms, sizeof(FDE_TXTEDTPARAMS));
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m_wLineEnd = params.wLineBreakChar;
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m_bAutoLineEnd = (m_Param.nLineEnd == FDE_TXTEDIT_LINEEND_Auto);
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UpdateTxtBreak();
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}
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FDE_TXTEDTPARAMS* CFDE_TxtEdtEngine::GetEditParams() {
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return &m_Param;
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}
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int32_t CFDE_TxtEdtEngine::CountPages() const {
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if (m_nLineCount == 0) {
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return 0;
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}
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return ((m_nLineCount - 1) / m_nPageLineCount) + 1;
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}
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IFDE_TxtEdtPage* CFDE_TxtEdtEngine::GetPage(int32_t nIndex) {
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if (m_PagePtrArray.GetSize() <= nIndex) {
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return nullptr;
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}
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return m_PagePtrArray[nIndex];
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}
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void CFDE_TxtEdtEngine::SetTextByStream(IFX_Stream* pStream) {
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ResetEngine();
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int32_t nIndex = 0;
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if (pStream && pStream->GetLength()) {
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int32_t nStreamLength = pStream->GetLength();
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FX_BOOL bValid = TRUE;
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if (m_nLimit > 0 && nStreamLength > m_nLimit) {
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bValid = FALSE;
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}
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FX_BOOL bPreIsCR = FALSE;
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if (bValid) {
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uint8_t bom[4];
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int32_t nPos = pStream->GetBOM(bom);
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pStream->Seek(FX_STREAMSEEK_Begin, nPos);
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int32_t nPlateSize = std::min(nStreamLength, m_pTxtBuf->GetChunkSize());
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FX_WCHAR* lpwstr = FX_Alloc(FX_WCHAR, nPlateSize);
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FX_BOOL bEos = false;
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while (!bEos) {
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int32_t nRead = pStream->ReadString(lpwstr, nPlateSize, bEos);
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bPreIsCR = ReplaceParagEnd(lpwstr, nRead, bPreIsCR);
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m_pTxtBuf->Insert(nIndex, lpwstr, nRead);
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nIndex += nRead;
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}
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FX_Free(lpwstr);
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}
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}
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m_pTxtBuf->Insert(nIndex, &m_wLineEnd, 1);
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RebuildParagraphs();
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}
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void CFDE_TxtEdtEngine::SetText(const CFX_WideString& wsText) {
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ResetEngine();
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int32_t nLength = wsText.GetLength();
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if (nLength > 0) {
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CFX_WideString wsTemp;
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FX_WCHAR* lpBuffer = wsTemp.GetBuffer(nLength);
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FXSYS_memcpy(lpBuffer, wsText.c_str(), nLength * sizeof(FX_WCHAR));
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ReplaceParagEnd(lpBuffer, nLength, FALSE);
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wsTemp.ReleaseBuffer(nLength);
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if (m_nLimit > 0 && nLength > m_nLimit) {
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wsTemp.Delete(m_nLimit, nLength - m_nLimit);
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nLength = m_nLimit;
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}
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m_pTxtBuf->SetText(wsTemp);
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}
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m_pTxtBuf->Insert(nLength, &m_wLineEnd, 1);
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RebuildParagraphs();
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}
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int32_t CFDE_TxtEdtEngine::GetTextLength() const {
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return GetTextBufLength();
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}
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void CFDE_TxtEdtEngine::GetText(CFX_WideString& wsText,
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int32_t nStart,
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int32_t nCount) {
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int32_t nTextBufLength = GetTextBufLength();
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if (nCount == -1) {
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nCount = nTextBufLength - nStart;
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}
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m_pTxtBuf->GetRange(wsText, nStart, nCount);
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RecoverParagEnd(wsText);
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}
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void CFDE_TxtEdtEngine::ClearText() {
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DeleteRange(0, -1);
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}
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int32_t CFDE_TxtEdtEngine::GetCaretRect(CFX_RectF& rtCaret) const {
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rtCaret = m_rtCaret;
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return m_nCaret;
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}
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int32_t CFDE_TxtEdtEngine::GetCaretPos() const {
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if (IsLocked()) {
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return 0;
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}
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return m_nCaret + (m_bBefore ? 0 : 1);
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}
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int32_t CFDE_TxtEdtEngine::SetCaretPos(int32_t nIndex, FX_BOOL bBefore) {
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if (IsLocked()) {
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return 0;
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}
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ASSERT(nIndex >= 0 && nIndex <= GetTextBufLength());
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if (m_PagePtrArray.GetSize() <= m_nCaretPage) {
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return 0;
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}
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m_bBefore = bBefore;
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m_nCaret = nIndex;
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MovePage2Char(m_nCaret);
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GetCaretRect(m_rtCaret, m_nCaretPage, m_nCaret, m_bBefore);
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if (!m_bBefore) {
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m_nCaret++;
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m_bBefore = TRUE;
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}
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m_fCaretPosReserve = (m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical)
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? m_rtCaret.top
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: m_rtCaret.left;
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m_Param.pEventSink->On_CaretChanged(this, m_nCaretPage, 0);
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m_nAnchorPos = -1;
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return m_nCaret;
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}
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int32_t CFDE_TxtEdtEngine::MoveCaretPos(FDE_TXTEDTMOVECARET eMoveCaret,
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FX_BOOL bShift,
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FX_BOOL bCtrl) {
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if (IsLocked()) {
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return 0;
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}
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if (m_PagePtrArray.GetSize() <= m_nCaretPage) {
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return 0;
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}
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FX_BOOL bSelChange = FALSE;
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if (IsSelect()) {
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ClearSelection();
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bSelChange = TRUE;
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}
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if (bShift) {
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if (m_nAnchorPos == -1) {
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m_nAnchorPos = m_nCaret;
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}
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} else {
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m_nAnchorPos = -1;
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}
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FX_BOOL bVertical = m_Param.dwLayoutStyles & FDE_TEXTEDITLAYOUT_DocVertical;
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switch (eMoveCaret) {
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case MC_Left: {
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if (bVertical) {
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CFX_PointF ptCaret;
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if (MoveUp(ptCaret)) {
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UpdateCaretIndex(ptCaret);
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}
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} else {
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FX_BOOL bBefore = TRUE;
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int32_t nIndex = MoveBackward(bBefore);
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if (nIndex >= 0) {
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UpdateCaretRect(nIndex, bBefore);
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}
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}
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} break;
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case MC_Right: {
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if (bVertical) {
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CFX_PointF ptCaret;
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if (MoveDown(ptCaret)) {
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UpdateCaretIndex(ptCaret);
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}
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} else {
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FX_BOOL bBefore = TRUE;
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int32_t nIndex = MoveForward(bBefore);
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if (nIndex >= 0) {
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UpdateCaretRect(nIndex, bBefore);
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}
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}
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} break;
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case MC_Up: {
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if (bVertical) {
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FX_BOOL bBefore = TRUE;
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int32_t nIndex = MoveBackward(bBefore);
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if (nIndex >= 0) {
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UpdateCaretRect(nIndex, bBefore);
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}
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} else {
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CFX_PointF ptCaret;
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if (MoveUp(ptCaret)) {
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UpdateCaretIndex(ptCaret);
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}
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}
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} break;
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case MC_Down: {
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if (bVertical) {
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FX_BOOL bBefore = TRUE;
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int32_t nIndex = MoveForward(bBefore);
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if (nIndex >= 0) {
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UpdateCaretRect(nIndex, bBefore);
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}
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} else {
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CFX_PointF ptCaret;
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if (MoveDown(ptCaret)) {
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UpdateCaretIndex(ptCaret);
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}
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}
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} break;
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case MC_WordBackward:
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break;
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case MC_WordForward:
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break;
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case MC_LineStart:
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MoveLineStart();
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break;
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case MC_LineEnd:
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MoveLineEnd();
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break;
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case MC_ParagStart:
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MoveParagStart();
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break;
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case MC_ParagEnd:
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MoveParagEnd();
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break;
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case MC_PageDown:
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break;
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case MC_PageUp:
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break;
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case MC_Home:
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MoveHome();
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break;
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case MC_End:
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MoveEnd();
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break;
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default:
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break;
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}
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if (bShift && m_nAnchorPos != -1 && (m_nAnchorPos != m_nCaret)) {
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AddSelRange(std::min(m_nAnchorPos, m_nCaret),
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FXSYS_abs(m_nAnchorPos - m_nCaret));
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m_Param.pEventSink->On_SelChanged(this);
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}
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if (bSelChange) {
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m_Param.pEventSink->On_SelChanged(this);
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}
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return m_nCaret;
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}
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void CFDE_TxtEdtEngine::Lock() {
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m_bLock = TRUE;
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}
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void CFDE_TxtEdtEngine::Unlock() {
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m_bLock = FALSE;
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}
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FX_BOOL CFDE_TxtEdtEngine::IsLocked() const {
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return m_bLock;
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}
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int32_t CFDE_TxtEdtEngine::Insert(int32_t nStart,
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const FX_WCHAR* lpText,
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int32_t nLength) {
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if (IsLocked()) {
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return FDE_TXTEDT_MODIFY_RET_F_Locked;
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}
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CFX_WideString wsTemp;
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FX_WCHAR* lpBuffer = wsTemp.GetBuffer(nLength);
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FXSYS_memcpy(lpBuffer, lpText, nLength * sizeof(FX_WCHAR));
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ReplaceParagEnd(lpBuffer, nLength, FALSE);
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wsTemp.ReleaseBuffer(nLength);
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FX_BOOL bPart = FALSE;
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if (m_nLimit > 0) {
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int32_t nTotalLength = GetTextBufLength();
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int32_t nCount = m_SelRangePtrArr.GetSize();
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for (int32_t i = 0; i < nCount; i++) {
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FDE_TXTEDTSELRANGE* lpSelRange = m_SelRangePtrArr.GetAt(i);
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nTotalLength -= lpSelRange->nCount;
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}
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int32_t nExpectLength = nTotalLength + nLength;
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if (nTotalLength == m_nLimit) {
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return FDE_TXTEDT_MODIFY_RET_F_Full;
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}
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if (nExpectLength > m_nLimit) {
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nLength -= (nExpectLength - m_nLimit);
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bPart = TRUE;
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}
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}
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if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Vert) ||
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(m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Horz)) {
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int32_t nTemp = nLength;
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if (m_Param.dwMode & FDE_TEXTEDITMODE_Password) {
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CFX_WideString wsText;
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while (nLength > 0) {
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GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength);
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int32_t nTotal = wsText.GetLength();
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FX_WCHAR* lpBuf = wsText.GetBuffer(nTotal);
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for (int32_t i = 0; i < nTotal; i++) {
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lpBuf[i] = m_wcAliasChar;
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}
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wsText.ReleaseBuffer(nTotal);
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if (IsFitArea(wsText)) {
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break;
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}
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nLength--;
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}
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} else {
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CFX_WideString wsText;
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while (nLength > 0) {
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GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength);
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if (IsFitArea(wsText)) {
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break;
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}
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nLength--;
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}
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}
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if (nLength == 0) {
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return FDE_TXTEDT_MODIFY_RET_F_Full;
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}
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if (nLength < nTemp) {
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bPart = TRUE;
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}
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}
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if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) {
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CFX_WideString wsText;
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GetPreInsertText(wsText, m_nCaret, lpBuffer, nLength);
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if (!m_Param.pEventSink->On_Validate(this, wsText)) {
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return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
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}
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}
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if (IsSelect()) {
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DeleteSelect();
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}
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if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo))
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m_Param.pEventSink->On_AddDoRecord(
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this,
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new CFDE_TxtEdtDoRecord_Insert(this, m_nCaret, lpBuffer, nLength));
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GetText(m_ChangeInfo.wsPrevText, 0);
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Inner_Insert(m_nCaret, lpBuffer, nLength);
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m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Insert;
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m_ChangeInfo.wsInsert = CFX_WideString(lpBuffer, nLength);
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nStart = m_nCaret;
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nStart += nLength;
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FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nStart - 1);
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FX_BOOL bBefore = TRUE;
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if (wChar != L'\n' && wChar != L'\r') {
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nStart--;
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bBefore = FALSE;
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}
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SetCaretPos(nStart, bBefore);
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m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo);
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return bPart ? FDE_TXTEDT_MODIFY_RET_S_Part : FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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int32_t CFDE_TxtEdtEngine::Delete(int32_t nStart, FX_BOOL bBackspace) {
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if (IsLocked()) {
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return FDE_TXTEDT_MODIFY_RET_F_Locked;
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}
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if (IsSelect()) {
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DeleteSelect();
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return FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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int32_t nCount = 1;
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if (bBackspace) {
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if (nStart == 0) {
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return FDE_TXTEDT_MODIFY_RET_F_Boundary;
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}
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if (nStart > 2 && m_pTxtBuf->GetCharByIndex(nStart - 1) == L'\n' &&
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m_pTxtBuf->GetCharByIndex(nStart - 2) == L'\r') {
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nStart--;
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nCount++;
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}
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nStart--;
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} else {
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if (nStart == GetTextBufLength()) {
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return FDE_TXTEDT_MODIFY_RET_F_Full;
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}
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if ((nStart + 1 < GetTextBufLength()) &&
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(m_pTxtBuf->GetCharByIndex(nStart) == L'\r') &&
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(m_pTxtBuf->GetCharByIndex(nStart + 1) == L'\n')) {
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nCount++;
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}
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}
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if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) {
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CFX_WideString wsText;
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GetPreDeleteText(wsText, nStart, nCount);
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if (!m_Param.pEventSink->On_Validate(this, wsText)) {
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return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
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}
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}
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if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) {
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CFX_WideString wsRange;
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m_pTxtBuf->GetRange(wsRange, nStart, nCount);
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m_Param.pEventSink->On_AddDoRecord(
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this,
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new CFDE_TxtEdtDoRecord_DeleteRange(this, nStart, m_nCaret, wsRange));
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}
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m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Delete;
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GetText(m_ChangeInfo.wsDelete, nStart, nCount);
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Inner_DeleteRange(nStart, nCount);
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SetCaretPos(nStart + ((!bBackspace && nStart > 0) ? -1 : 0),
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(bBackspace || nStart == 0));
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m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo);
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return FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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int32_t CFDE_TxtEdtEngine::DeleteRange(int32_t nStart, int32_t nCount) {
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if (IsLocked()) {
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return FDE_TXTEDT_MODIFY_RET_F_Locked;
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}
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if (nCount == -1) {
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nCount = GetTextBufLength();
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}
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if (nCount == 0) {
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return FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) {
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CFX_WideString wsText;
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GetPreDeleteText(wsText, nStart, nCount);
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if (!m_Param.pEventSink->On_Validate(this, wsText)) {
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return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
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}
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}
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DeleteRange_DoRecord(nStart, nCount);
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m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo);
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SetCaretPos(nStart, TRUE);
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return FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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int32_t CFDE_TxtEdtEngine::Replace(int32_t nStart,
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int32_t nLength,
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const CFX_WideString& wsReplace) {
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if (IsLocked()) {
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return FDE_TXTEDT_MODIFY_RET_F_Locked;
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}
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if (nStart < 0 || (nStart + nLength > GetTextBufLength())) {
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return FDE_TXTEDT_MODIFY_RET_F_Boundary;
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}
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if (m_Param.dwMode & FDE_TEXTEDITMODE_Validate) {
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CFX_WideString wsText;
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GetPreReplaceText(wsText, nStart, nLength, wsReplace.c_str(),
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wsReplace.GetLength());
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if (!m_Param.pEventSink->On_Validate(this, wsText)) {
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return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
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}
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}
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if (IsSelect()) {
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ClearSelection();
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}
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m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Replace;
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GetText(m_ChangeInfo.wsDelete, nStart, nLength);
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if (nLength > 0) {
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Inner_DeleteRange(nStart, nLength);
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}
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int32_t nTextLength = wsReplace.GetLength();
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if (nTextLength > 0) {
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Inner_Insert(nStart, wsReplace.c_str(), nTextLength);
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}
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m_ChangeInfo.wsInsert = CFX_WideString(wsReplace.c_str(), nTextLength);
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nStart += nTextLength;
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FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nStart - 1);
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FX_BOOL bBefore = TRUE;
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if (wChar != L'\n' && wChar != L'\r') {
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nStart--;
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bBefore = FALSE;
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}
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SetCaretPos(nStart, bBefore);
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m_Param.pEventSink->On_PageUnload(this, m_nCaretPage, 0);
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m_Param.pEventSink->On_PageLoad(this, m_nCaretPage, 0);
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m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo);
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return FDE_TXTEDT_MODIFY_RET_S_Normal;
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}
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void CFDE_TxtEdtEngine::SetLimit(int32_t nLimit) {
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m_nLimit = nLimit;
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}
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void CFDE_TxtEdtEngine::SetAliasChar(FX_WCHAR wcAlias) {
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m_wcAliasChar = wcAlias;
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}
|
|
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 = nullptr;
|
int32_t nLineCount = 0;
|
for (; m_nLayoutPos < nCount; m_nLayoutPos++) {
|
pParag = m_ParagPtrArray[m_nLayoutPos];
|
pParag->CalcLines();
|
nLineCount += pParag->GetLineCount();
|
if (nLineCount > m_nPageLineCount && pPause && 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 nullptr;
|
}
|
return new CFDE_TxtEdtBufIter(static_cast<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 = nullptr;
|
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* pTextParag = m_ParagPtrArray[i];
|
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);
|
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() {
|
for (int32_t i = 0; i < m_ParagPtrArray.GetSize(); ++i)
|
delete m_ParagPtrArray[i];
|
m_ParagPtrArray.RemoveAll();
|
}
|
|
void CFDE_TxtEdtEngine::RemoveAllPages() {
|
for (int32_t i = 0; i < m_PagePtrArray.GetSize(); i++)
|
delete m_PagePtrArray[i];
|
m_PagePtrArray.RemoveAll();
|
}
|
|
void CFDE_TxtEdtEngine::UpdateParags() {
|
int32_t nCount = m_ParagPtrArray.GetSize();
|
if (nCount == 0) {
|
return;
|
}
|
CFDE_TxtEdtParag* pParag = nullptr;
|
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) {
|
for (int32_t i = nSize - 1; i >= nPageCount; i--) {
|
delete m_PagePtrArray[i];
|
m_PagePtrArray.RemoveAt(i);
|
}
|
return;
|
}
|
if (nSize < nPageCount) {
|
for (int32_t i = nSize; i < nPageCount; i++)
|
m_PagePtrArray.Add(IFDE_TxtEdtPage::Create(this, i));
|
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 = nullptr;
|
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 = 0;
|
while (nCountRange > 0) {
|
int32_t 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;
|
}
|
}
|
