diff options
| -rw-r--r-- | core/src/fpdftext/fpdf_text_int.cpp | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/core/src/fpdftext/fpdf_text_int.cpp b/core/src/fpdftext/fpdf_text_int.cpp index 4ed11e3986..ee768af3bc 100644 --- a/core/src/fpdftext/fpdf_text_int.cpp +++ b/core/src/fpdftext/fpdf_text_int.cpp @@ -1421,6 +1421,62 @@ void CPDF_TextPage::FindPreviousTextObject(void) { m_pPreTextObj = preChar.m_pTextObj; } } +void CPDF_TextPage::SwapTempTextBuf(int32_t iCharListStartAppend, + int32_t iBufStartAppend) { + int32_t i, j; + i = iCharListStartAppend; + j = m_TempCharList.GetSize() - 1; + for (; i < j; i++, j--) { + std::swap(m_TempCharList[i], m_TempCharList[j]); + std::swap(m_TempCharList[i].m_Index, m_TempCharList[j].m_Index); + } + FX_WCHAR* pTempBuffer = m_TempTextBuf.GetBuffer(); + i = iBufStartAppend; + j = m_TempTextBuf.GetLength() - 1; + for (; i < j; i++, j--) { + std::swap(pTempBuffer[i], pTempBuffer[j]); + } +} +FX_BOOL CPDF_TextPage::IsRightToLeft(const CPDF_TextObject* pTextObj, + const CPDF_Font* pFont, + int nItems) const { + nonstd::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar); + int32_t nR2L = 0; + int32_t nL2R = 0; + int32_t start = 0, count = 0; + CPDF_TextObjectItem item; + for (int32_t i = 0; i < nItems; i++) { + pTextObj->GetItemInfo(i, &item); + if (item.m_CharCode == (FX_DWORD)-1) { + continue; + } + CFX_WideString wstrItem = pFont->UnicodeFromCharCode(item.m_CharCode); + FX_WCHAR wChar = wstrItem.GetAt(0); + if ((wstrItem.IsEmpty() || wChar == 0) && item.m_CharCode) { + wChar = (FX_WCHAR)item.m_CharCode; + } + if (!wChar) { + continue; + } + if (pBidiChar->AppendChar(wChar)) { + CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count); + if (ret == CFX_BidiChar::RIGHT) { + nR2L++; + } else if (ret == CFX_BidiChar::LEFT) { + nL2R++; + } + } + } + if (pBidiChar->EndChar()) { + CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count); + if (ret == CFX_BidiChar::RIGHT) { + nR2L++; + } else if (ret == CFX_BidiChar::LEFT) { + nL2R++; + } + } + return (nR2L > 0 && nR2L >= nL2R); +} void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) { CPDF_TextObject* pTextObj = Obj.m_pTextObj; if (FXSYS_fabs(pTextObj->m_Right - pTextObj->m_Left) < 0.01f) { @@ -1689,62 +1745,6 @@ void CPDF_TextPage::ProcessTextObject(PDFTEXT_Obj Obj) { SwapTempTextBuf(iCharListStartAppend, iBufStartAppend); } } -void CPDF_TextPage::SwapTempTextBuf(int32_t iCharListStartAppend, - int32_t iBufStartAppend) { - int32_t i, j; - i = iCharListStartAppend; - j = m_TempCharList.GetSize() - 1; - for (; i < j; i++, j--) { - std::swap(m_TempCharList[i], m_TempCharList[j]); - std::swap(m_TempCharList[i].m_Index, m_TempCharList[j].m_Index); - } - FX_WCHAR* pTempBuffer = m_TempTextBuf.GetBuffer(); - i = iBufStartAppend; - j = m_TempTextBuf.GetLength() - 1; - for (; i < j; i++, j--) { - std::swap(pTempBuffer[i], pTempBuffer[j]); - } -} -FX_BOOL CPDF_TextPage::IsRightToLeft(const CPDF_TextObject* pTextObj, - const CPDF_Font* pFont, - int nItems) const { - nonstd::unique_ptr<CFX_BidiChar> pBidiChar(new CFX_BidiChar); - int32_t nR2L = 0; - int32_t nL2R = 0; - int32_t start = 0, count = 0; - CPDF_TextObjectItem item; - for (int32_t i = 0; i < nItems; i++) { - pTextObj->GetItemInfo(i, &item); - if (item.m_CharCode == (FX_DWORD)-1) { - continue; - } - CFX_WideString wstrItem = pFont->UnicodeFromCharCode(item.m_CharCode); - FX_WCHAR wChar = wstrItem.GetAt(0); - if ((wstrItem.IsEmpty() || wChar == 0) && item.m_CharCode) { - wChar = (FX_WCHAR)item.m_CharCode; - } - if (!wChar) { - continue; - } - if (pBidiChar->AppendChar(wChar)) { - CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count); - if (ret == CFX_BidiChar::RIGHT) { - nR2L++; - } else if (ret == CFX_BidiChar::LEFT) { - nL2R++; - } - } - } - if (pBidiChar->EndChar()) { - CFX_BidiChar::Direction ret = pBidiChar->GetBidiInfo(&start, &count); - if (ret == CFX_BidiChar::RIGHT) { - nR2L++; - } else if (ret == CFX_BidiChar::LEFT) { - nL2R++; - } - } - return (nR2L > 0 && nR2L >= nL2R); -} int32_t CPDF_TextPage::GetTextObjectWritingMode( const CPDF_TextObject* pTextObj) { int32_t nChars = pTextObj->CountChars(); |