624 lines
17 KiB
C++
624 lines
17 KiB
C++
// AttrStr.cpp : Implementation of CMLStrAttrStrCommonAttrStrCommon
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#include "private.h"
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#ifdef NEWMLSTR
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#include "attrstr.h"
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#include "mlsbwalk.h"
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/////////////////////////////////////////////////////////////////////////////
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// CMLStrAttrStrCommon
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CMLStrAttrStrCommon::CMLStrAttrStrCommon(void) :
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m_pMLStrBufW(NULL),
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m_pMLStrBufA(NULL),
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m_lBufFlags(0),
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m_cchBuf(0),
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m_locale(0),
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m_LockInfo(this)
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{
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m_dwThreadID = ::GetCurrentThreadId();
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}
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CMLStrAttrStrCommon::~CMLStrAttrStrCommon(void)
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{
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if (m_pMLStrBufW)
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m_pMLStrBufW->Release();
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if (m_pMLStrBufA)
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m_pMLStrBufA->Release();
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}
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HRESULT CMLStrAttrStrCommon::SetStrBufCommon(void* pMLStrX, long lDestPos, long lDestLen, UINT uCodePage, IMLangStringBufW* pSrcBufW, IMLangStringBufA* pSrcBufA, long* pcchActual, long* plActualLen)
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{
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ASSERT_THIS;
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ASSERT_READ_PTR_OR_NULL(pSrcBufW);
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ASSERT_READ_PTR_OR_NULL(pSrcBufA);
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ASSERT(!pSrcBufW || !pSrcBufA); // Either one or both should be NULL
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ASSERT_WRITE_PTR_OR_NULL(pcchActual);
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ASSERT_WRITE_PTR_OR_NULL(plActualLen);
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HRESULT hr = CheckThread();
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CLock Lock(TRUE, this, hr);
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long lBufFlags = 0; // '= 0' for in case of both of pSrcBufW and pSrcBufA are NULL
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long cchBuf = 0;
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long cchDestPos;
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long cchDestLen;
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long lActualLen = 0;
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if (SUCCEEDED(hr) &&
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(!pSrcBufW || SUCCEEDED(hr = pSrcBufW->GetStatus(&lBufFlags, &cchBuf))) &&
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(!pSrcBufA || SUCCEEDED(hr = pSrcBufA->GetStatus(&lBufFlags, &cchBuf))) &&
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SUCCEEDED(hr = RegularizePosLen(&lDestPos, &lDestLen)) &&
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SUCCEEDED(hr = GetCCh(0, lDestPos, &cchDestPos)) &&
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SUCCEEDED(hr = GetCCh(cchDestPos, lDestLen, &cchDestLen)))
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{
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if (!cchDestPos && cchDestLen == GetBufCCh()) // Replacing entire string
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{
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IMLangStringBufW* const pOldBufW = GetMLStrBufW();
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IMLangStringBufA* const pOldBufA = GetMLStrBufA();
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if (pOldBufW)
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pOldBufW->Release();
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else if (pOldBufA)
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pOldBufA->Release();
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if (pSrcBufW)
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pSrcBufW->AddRef();
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else if (pSrcBufA)
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pSrcBufA->AddRef();
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SetMLStrBufW(pSrcBufW);
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SetMLStrBufA(pSrcBufA);
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SetCodePage(uCodePage);
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SetBufFlags(lBufFlags);
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SetBufCCh(cchBuf);
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if (plActualLen)
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hr = GetLen(0, GetBufCCh(), &lActualLen);
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}
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else
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{
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if (pSrcBufW)
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{
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CMLStrBufWalkW BufWalk(pSrcBufW, 0, cchBuf, (pcchActual || plActualLen));
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while (BufWalk.Lock(hr))
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{
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long cchSet;
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long lSetLen;
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hr = ((IMLangStringWStr*)pMLStrX)->SetWStr(lDestPos, lDestLen, BufWalk.GetStr(), BufWalk.GetCCh(), &cchSet, (plActualLen) ? &lSetLen : NULL);
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lActualLen += lSetLen;
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BufWalk.Unlock(hr, cchSet);
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}
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cchBuf = BufWalk.GetDoneCCh();
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pSrcBufW->Release();
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}
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else if (pSrcBufA && pMLStrX)
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{
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CMLStrBufWalkA BufWalk(pSrcBufA, 0, cchBuf, (pcchActual || plActualLen));
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while (BufWalk.Lock(hr))
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{
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long cchSet;
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long lSetLen;
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hr = ((IMLangStringAStr*)pMLStrX)->SetAStr(lDestPos, lDestLen, uCodePage, BufWalk.GetStr(), BufWalk.GetCCh(), &cchSet, (plActualLen) ? &lSetLen : NULL);
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lActualLen += lSetLen;
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BufWalk.Unlock(hr, cchSet);
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}
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cchBuf = BufWalk.GetDoneCCh();
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pSrcBufA->Release();
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}
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else
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{
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hr = GetMLStrAttr()->SetMLStr(lDestPos, lDestLen, NULL, 0, 0);
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}
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}
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}
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if (SUCCEEDED(hr))
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{
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if (pcchActual)
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*pcchActual = cchBuf;
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if (plActualLen)
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*plActualLen = lActualLen;
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}
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else
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{
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if (pcchActual)
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*pcchActual = 0;
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if (plActualLen)
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*plActualLen = 0;
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}
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::UnlockWStrDirect(void* pKey, const void* pszSrc, long cchSrc, long* pcchActual, long* plActualLen)
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{
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HRESULT hr;
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IMLangStringBufW* const pMLStrBufW = GetMLStrBufW();
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const long cchLockLen = GetLockInfo()->GetCChLen(pKey);
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if (SUCCEEDED(hr = pMLStrBufW->UnlockBuf((WCHAR*)pszSrc, 0, cchSrc)) &&
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(GetLockInfo()->GetFlags(pKey) & MLSTR_WRITE))
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{
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if (cchSrc < cchLockLen)
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{
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if (SUCCEEDED(hr = pMLStrBufW->Delete(GetLockInfo()->GetCChPos(pKey) + cchSrc, cchLockLen - cchSrc)))
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SetBufCCh(GetBufCCh() - (cchLockLen - cchSrc));
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}
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if (SUCCEEDED(hr) && plActualLen)
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hr = CalcLenW((WCHAR*)pszSrc, cchSrc, plActualLen);
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if (pcchActual)
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*pcchActual = cchSrc;
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}
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::UnlockWStrIndirect(void* pKey, const void* pszSrc, long cchSrc, long* pcchActual, long* plActualLen)
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{
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HRESULT hr = S_OK;
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if (GetLockInfo()->GetFlags(pKey) & MLSTR_WRITE)
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{
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CComQIPtr<IMLStrAttrWStr, &IID_IMLStrAttrWStr> pAttrWStr(GetMLStrAttr());
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ASSERT(pAttrWStr);
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hr = pAttrWStr->SetWStr(GetLockInfo()->GetPos(pKey), GetLockInfo()->GetLen(pKey), (WCHAR*)pszSrc, cchSrc, pcchActual, plActualLen);
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}
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ASSIGN_IF_FAILED(hr, MemFree((void*)pszSrc));
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::UnlockAStrDirect(void* pKey, const void* pszSrc, long cchSrc, long* pcchActual, long* plActualLen)
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{
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HRESULT hr;
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IMLangStringBufA* const pMLStrBufA = GetMLStrBufA();
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const long cchLockLen = GetLockInfo()->GetCChLen(pKey);
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if (SUCCEEDED(hr = pMLStrBufA->UnlockBuf((CHAR*)pszSrc, 0, cchSrc)) &&
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(GetLockInfo()->GetFlags(pKey) & MLSTR_WRITE))
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{
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if (cchSrc < cchLockLen)
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{
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if (SUCCEEDED(hr = pMLStrBufA->Delete(GetLockInfo()->GetCChPos(pKey) + cchSrc, cchLockLen - cchSrc)))
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SetBufCCh(GetBufCCh() - (cchLockLen - cchSrc));
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}
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if (SUCCEEDED(hr) && plActualLen)
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hr = CalcLenA(GetCodePage(), (CHAR*)pszSrc, cchSrc, plActualLen);
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if (pcchActual)
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*pcchActual = cchSrc;
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}
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::UnlockAStrIndirect(void* pKey, const void* pszSrc, long cchSrc, long* pcchActual, long* plActualLen)
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{
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HRESULT hr = S_OK;
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if (GetLockInfo()->GetFlags(pKey) & MLSTR_WRITE)
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{
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CComQIPtr<IMLStrAttrAStr, &IID_IMLStrAttrAStr> pAttrAStr(GetMLStrAttr());
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ASSERT(pAttrAStr);
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hr = pAttrAStr->SetAStr(GetLockInfo()->GetPos(pKey), GetLockInfo()->GetLen(pKey), GetLockInfo()->GetCodePage(pKey), (CHAR*)pszSrc, cchSrc, pcchActual, plActualLen);
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}
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ASSIGN_IF_FAILED(hr, MemFree((void*)pszSrc));
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::UnlockStrCommon(const void* pszSrc, long cchSrc, long* pcchActual, long* plActualLen)
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{
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HRESULT hr = CheckThread();
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void* pLockKey;
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long lSrcLen;
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if (SUCCEEDED(hr))
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hr = GetLockInfo()->Find(pszSrc, cchSrc, &pLockKey);
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if (SUCCEEDED(hr))
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hr = GetLockInfo()->Unlock(pLockKey, pszSrc, cchSrc, (pcchActual) ? &cchSrc : NULL, (plActualLen) ? &lSrcLen : NULL);
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if (SUCCEEDED(hr))
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{
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if (pcchActual)
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*pcchActual = cchSrc;
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if (plActualLen)
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*plActualLen = lSrcLen;
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}
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else
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{
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if (pcchActual)
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*pcchActual = 0;
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if (plActualLen)
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*plActualLen = 0;
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}
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::PrepareMLStrBuf(void)
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{
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if (GetMLStrBufW() || GetMLStrBufA())
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return S_OK;
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IMLangStringBufW* pBuf = new CMLStrAttrStrCommon::CMLStrBufStandardW;
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if (pBuf)
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{
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SetMLStrBufW(pBuf);
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return S_OK;
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}
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else
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{
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return E_OUTOFMEMORY;
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}
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}
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HRESULT CMLStrAttrStrCommon::RegularizePosLen(long* plPos, long* plLen)
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{
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HRESULT hr;
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long lStrLen;
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if (SUCCEEDED(hr = GetLen(0, GetBufCCh(), &lStrLen)))
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hr = ::RegularizePosLen(lStrLen, plPos, plLen);
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::GetCCh(long cchOffset, long lLen, long* pcchLen)
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{
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if (GetMLStrBufW())
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{
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if (pcchLen)
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*pcchLen = lLen; // The number of characters is equal to the length
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return S_OK;
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}
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else if (GetMLStrBufA())
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{
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HRESULT hr = S_OK;
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CMLStrBufWalkA BufWalk(GetMLStrBufA(), cchOffset, GetBufCCh() - cchOffset);
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while (lLen > 0 && BufWalk.Lock(hr))
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{
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for (LPCSTR pszTemp = BufWalk.GetStr(); lLen > 0 && *pszTemp; lLen--)
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pszTemp = ::CharNextExA((WORD)GetCodePage(), pszTemp, 0);
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if (!*pszTemp)
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lLen = 0; // String terminated
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BufWalk.Unlock(hr);
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}
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if (pcchLen)
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{
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if (SUCCEEDED(hr))
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*pcchLen = BufWalk.GetDoneCCh();
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else
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*pcchLen = 0;
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}
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return hr;
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}
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else
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{
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if (pcchLen)
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*pcchLen = 0; // No string
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return S_OK;
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}
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}
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HRESULT CMLStrAttrStrCommon::GetLen(long cchOffset, long cchLen, long* plLen)
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{
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if (GetMLStrBufW())
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{
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if (plLen)
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*plLen = cchLen; // The length is equal to the number of characters
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return S_OK;
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}
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else if (GetMLStrBufA())
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{
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HRESULT hr = S_OK;
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long lDoneLen = 0;
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CMLStrBufWalkA BufWalk(GetMLStrBufA(), cchOffset, cchLen);
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while (BufWalk.Lock(hr))
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{
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long lTempLen;
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hr = CalcLenA(GetCodePage(), BufWalk.GetStr(), BufWalk.GetCCh(), &lTempLen);
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if (hr == S_FALSE)
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cchLen = 0; // String terminated
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lDoneLen += lTempLen;
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BufWalk.Unlock(hr);
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}
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if (plLen)
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{
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if (SUCCEEDED(hr))
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*plLen = lDoneLen;
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else
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*plLen = 0;
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}
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return hr;
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}
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else
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{
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if (plLen)
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*plLen = 0; // No string
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return S_OK;
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}
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}
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HRESULT CMLStrAttrStrCommon::CalcLenA(UINT uCodePage, const CHAR* psz, long cchLen, long* plLen)
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{
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long lLen = 0;
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const CHAR* const pszEnd = psz + cchLen;
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for (; psz < pszEnd && *psz; lLen++)
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{
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const CHAR* const pszNew = ::CharNextExA((WORD)uCodePage, psz, 0);
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if (pszNew > pszEnd) // Overrun out of buffer
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break;
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psz = pszNew;
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}
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if (plLen)
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*plLen = lLen;
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if (*psz)
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return S_OK;
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else
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return S_FALSE;
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}
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HRESULT CMLStrAttrStrCommon::CalcCChA(UINT uCodePage, const CHAR* psz, long lLen, long* pcchLen)
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{
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const CHAR* const pszStart = psz;
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for (; lLen > 0 && *psz; lLen--)
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psz = ::CharNextExA((WORD)uCodePage, psz, 0);
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if (pcchLen)
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*pcchLen = psz - pszStart;
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if (*psz)
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return S_OK;
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else
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return S_FALSE;
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}
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HRESULT CMLStrAttrStrCommon::ConvAStrToWStr(UINT uCodePage, const CHAR* pszSrc, long cchSrc, WCHAR* pszDest, long cchDest, long* pcchActualA, long* pcchActualW, long* plActualLen)
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{
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HRESULT hr = S_OK;
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long lWrittenLen;
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long cchWrittenA;
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long cchWrittenW = ::MultiByteToWideChar(uCodePage, 0, pszSrc, cchSrc, pszDest, (pszDest) ? cchDest : 0);
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if (!cchWrittenW)
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hr = E_FAIL; // NLS failed
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if ((pcchActualA || plActualLen) && SUCCEEDED(hr))
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hr = CalcLenW(pszDest, cchWrittenW, &lWrittenLen); // BOGUS: pszDest may be NULL
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if (pcchActualA && SUCCEEDED(hr))
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hr = CalcCChA(uCodePage, pszSrc, lWrittenLen, &cchWrittenA);
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if (SUCCEEDED(hr))
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{
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if (pcchActualA)
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*pcchActualA = cchWrittenA;
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if (pcchActualW)
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*pcchActualW = cchWrittenW;
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if (plActualLen)
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*plActualLen = lWrittenLen;
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}
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else
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{
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if (pcchActualA)
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*pcchActualA = 0;
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if (pcchActualW)
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*pcchActualW = 0;
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if (plActualLen)
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*plActualLen = 0;
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}
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return hr;
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}
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HRESULT CMLStrAttrStrCommon::ConvWStrToAStr(BOOL fCanStopAtMiddle, UINT uCodePage, const WCHAR* pszSrc, long cchSrc, CHAR* pszDest, long cchDest, long* pcchActualA, long* pcchActualW, long* plActualLen)
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{
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HRESULT hr = S_OK;
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long lWrittenLen;
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long cchWrittenW;
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long cchWrittenA = ::WideCharToMultiByte(uCodePage, (fCanStopAtMiddle) ? 0 : WC_DEFAULTCHAR, pszSrc, cchSrc, pszDest, (pszDest) ? cchDest : 0, NULL, NULL);
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if (!cchWrittenA)
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hr = E_FAIL; // NLS failed
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if ((pcchActualW || plActualLen) && SUCCEEDED(hr))
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{
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if (pszDest)
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hr = CalcLenA(uCodePage, pszDest, cchWrittenA, &lWrittenLen);
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else
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hr = E_NOTIMPL; // Can't retrieve pcchActualW and plActualLen
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}
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if (pcchActualW && SUCCEEDED(hr))
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hr = CalcCChW(pszSrc, lWrittenLen, &cchWrittenW);
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if (SUCCEEDED(hr))
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{
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if (pcchActualA)
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*pcchActualA = cchWrittenA;
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if (pcchActualW)
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*pcchActualW = cchWrittenW;
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if (plActualLen)
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*plActualLen = lWrittenLen;
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}
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else
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{
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if (pcchActualA)
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*pcchActualA = 0;
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if (pcchActualW)
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*pcchActualW = 0;
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if (plActualLen)
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*plActualLen = 0;
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}
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return hr;
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}
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/////////////////////////////////////////////////////////////////////////////
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// CMLStrAttrStrCommon::CLockInfo
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HRESULT CMLStrAttrStrCommon::CLockInfo::UnlockAll(void)
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{
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if (m_pLockArray)
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{
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for (int n = 0; n < MAX_LOCK_COUNT; n++)
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{
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if (m_pLockArray[n].m_psz)
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Unlock(&m_pLockArray[n], m_pLockArray[n].m_psz, m_pLockArray[n].m_cchLen, NULL, NULL);
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}
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}
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return S_OK;
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}
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HRESULT CMLStrAttrStrCommon::CLockInfo::Lock(PFNUNLOCKPROC pfnUnlockProc, long lFlags, UINT uCodePage, void* psz, long lPos, long lLen, long cchPos, long cchLen)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
int nIndex;
|
|
|
|
if (!m_pLockArray)
|
|
{
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|
m_pLockArray = new CLockInfoEntry[MAX_LOCK_COUNT];
|
|
|
|
if (m_pLockArray)
|
|
{
|
|
for (nIndex = 0; nIndex < MAX_LOCK_COUNT; nIndex++)
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|
m_pLockArray[nIndex].m_psz = NULL;
|
|
}
|
|
else
|
|
{
|
|
hr = E_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
for (nIndex = 0; nIndex < MAX_LOCK_COUNT; nIndex++)
|
|
{
|
|
if (!m_pLockArray[nIndex].m_psz)
|
|
break;
|
|
}
|
|
if (nIndex >= MAX_LOCK_COUNT)
|
|
hr = MLSTR_E_TOOMANYNESTOFLOCK;
|
|
}
|
|
|
|
if (SUCCEEDED(hr))
|
|
{
|
|
m_pLockArray[nIndex].m_psz = psz;
|
|
m_pLockArray[nIndex].m_pfnUnlockProc = pfnUnlockProc;
|
|
m_pLockArray[nIndex].m_lFlags = lFlags;
|
|
m_pLockArray[nIndex].m_uCodePage = uCodePage;
|
|
m_pLockArray[nIndex].m_lPos = lPos;
|
|
m_pLockArray[nIndex].m_lLen = lLen;
|
|
m_pLockArray[nIndex].m_cchPos = cchPos;
|
|
m_pLockArray[nIndex].m_cchLen = cchLen;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CMLStrAttrStrCommon::CLockInfo::Find(const void* psz, long, void** ppKey)
|
|
{
|
|
HRESULT hr = S_OK;
|
|
int nIndex;
|
|
|
|
if (m_pLockArray)
|
|
{
|
|
for (nIndex = 0; nIndex < MAX_LOCK_COUNT; nIndex++)
|
|
{
|
|
if (psz == m_pLockArray[nIndex].m_psz)
|
|
break;
|
|
}
|
|
}
|
|
if (!m_pLockArray || nIndex >= MAX_LOCK_COUNT)
|
|
hr = E_INVALIDARG;
|
|
|
|
if (ppKey)
|
|
{
|
|
if (SUCCEEDED(hr))
|
|
*ppKey = &m_pLockArray[nIndex];
|
|
else
|
|
*ppKey = NULL;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
HRESULT CMLStrAttrStrCommon::CLockInfo::Unlock(void* pKey, const void* psz, long cch, long* pcchActual, long* plActualLen)
|
|
{
|
|
CLockInfoEntry* const pEntry = (CLockInfoEntry*)pKey;
|
|
HRESULT hr;
|
|
|
|
if (!(pEntry->m_lFlags & MLSTR_WRITE))
|
|
{
|
|
cch = 0;
|
|
if (plActualLen)
|
|
*plActualLen = 0;
|
|
}
|
|
|
|
hr = (m_pCommon->*(pEntry->m_pfnUnlockProc))(pKey, psz, cch, pcchActual, plActualLen);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = EndLock(pEntry->m_lFlags & MLSTR_WRITE);
|
|
|
|
pEntry->m_psz = NULL; // Remove from lock array anyway
|
|
|
|
if (FAILED(hr))
|
|
{
|
|
if (pcchActual)
|
|
*pcchActual = 0;
|
|
if (plActualLen)
|
|
*plActualLen = 0;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CMLStrAttrStrCommon::CMLStrBufStandardW
|
|
|
|
long CMLStrAttrStrCommon::CMLStrBufStandardW::RoundBufSize(long cchStr)
|
|
{
|
|
for (int n = 8; n < 12; n++)
|
|
{
|
|
if (cchStr < (1L << n))
|
|
break;
|
|
}
|
|
const long cchTick = (1L << (n - 4));
|
|
return (cchStr + cchTick - 1) / cchTick * cchTick;
|
|
}
|
|
|
|
#endif // NEWMLSTR
|