205 lines
6.4 KiB
C++
205 lines
6.4 KiB
C++
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//+--------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1991 - 1992
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//
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// File: dffuncs.cxx
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//
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// Contents: Private support functions for the DocFile code
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//
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// Methods: StartMS
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// DeleteContents
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//
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// History: 11-Dec-91 DrewB Created
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//
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//---------------------------------------------------------------
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#include <dfhead.cxx>
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#pragma hdrstop
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//+--------------------------------------------------------------
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//
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// Method: CDocFile::DeleteContents, public
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//
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// Synopsis: Deletes all entries in a DocFile recursing on entries
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// with children
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//
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// Returns: Appropriate status code
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//
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// History: 25-Sep-91 DrewB Created
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//
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//---------------------------------------------------------------
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SCODE CDocFile::DeleteContents(void)
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{
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFile::DeleteContents()\n"));
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sc = _stgh.DestroyEntry(NULL);
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olDebugOut((DEB_ITRACE, "Out CDocFile::DeleteContents\n"));
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Method: CDocFile::ApplyChanges, public
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//
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// Synopsis: Applies a list of updates to a docfile
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// Creates source entries in destination and links
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// them to child instances in the given TL
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//
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// Arguments: [ulChanged] - List of changes
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//
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// Returns: Appropriate status code
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//
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// History: 12-Mar-92 DrewB Created
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//
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//---------------------------------------------------------------
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SCODE CDocFile::ApplyChanges(CUpdateList &ulChanged)
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{
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SCODE sc = S_OK;
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CUpdate *pud;
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olDebugOut((DEB_ITRACE, "In CDocFile::ApplyChanges(%p)\n",
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ulChanged.GetHead()));
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for (pud = ulChanged.GetHead(); pud; pud = pud->GetNext())
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{
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if (pud->IsDelete())
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olChk(DestroyEntry(pud->GetOriginalName(), FALSE));
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else if (pud->IsRename())
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olChk(RenameEntry(pud->GetOriginalName(),
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pud->GetCurrentName()));
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else
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{
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olAssert(pud->IsCreate());
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olChk(CreateFromUpdate(pud, this, DF_WRITE));
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}
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}
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olDebugOut((DEB_ITRACE, "Out CDocFile::ApplyChanges\n"));
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// Fall through
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EH_Err:
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return sc;
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}
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//+--------------------------------------------------------------
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//
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// Member: CDocFile::CopyTo, public
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//
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// Synopsis: Copies the contents of one DocFile to another
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//
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// Arguments: [pdfTo] - Destination DocFile
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// [dwFlags] - Control flags
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// [snbExclude] - Partial instantiation list
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//
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// Returns: Appropriate status code
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//
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// History: 26-Sep-91 DrewB Created
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//
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//---------------------------------------------------------------
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SCODE CDocFile::CopyTo(CDocFile *pdfTo,
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DWORD dwFlags,
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SNBW snbExclude)
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{
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CDfName dfnKey;
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SIterBuffer ib;
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PSStream *psstFrom, *psstTo;
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CDocFile *pdfFromChild, *pdfToChild;
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DFLUID dlLUID = DF_NOLUID;
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SCODE sc;
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olDebugOut((DEB_ITRACE, "In CDocFile::CopyTo:%p(%p, %lX, %p)\n", this,
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pdfTo, dwFlags, snbExclude));
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for (;;)
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{
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if (FAILED(FindGreaterEntry(&dfnKey, &ib, NULL)))
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break;
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dfnKey.Set(&ib.dfnName);
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switch(REAL_STGTY(ib.type))
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{
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case STGTY_STORAGE:
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// Embedded DocFile, create destination and recurse
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olChkTo(EH_pwcsName, GetDocFile(&ib.dfnName, DF_READ, ib.type,
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(PDocFile **)&pdfFromChild));
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// Destination must be a direct docfile
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olChkTo(EH_Get, CDocFile::Reserve(1, BP_TO_P(CDFBasis *, _pdfb)));
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olChkTo(EH_Reserve, pdfTo->CreateDocFile(&ib.dfnName, DF_WRITE,
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dlLUID, ib.type,
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(PDocFile **)&pdfToChild));
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if (dwFlags & CDF_EXACT)
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pdfToChild->CopyTimesFrom(pdfFromChild);
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CLSID clsid;
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olChkTo(EH_Create, pdfFromChild->GetClass(&clsid));
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olChkTo(EH_Create, pdfToChild->SetClass(clsid));
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DWORD grfStateBits;
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olChkTo(EH_Create, pdfFromChild->GetStateBits(&grfStateBits));
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olChkTo(EH_Create, pdfToChild->SetStateBits(grfStateBits,
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0xffffffff));
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if ((dwFlags & CDF_ENTRIESONLY) == 0 &&
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!(snbExclude && NameInSNB(&ib.dfnName, snbExclude) ==
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S_OK))
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olChkTo(EH_Create,
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pdfFromChild->CopyTo(pdfToChild, dwFlags, NULL));
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pdfFromChild->Release();
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pdfToChild->Release();
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break;
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case STGTY_STREAM:
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olChkTo(EH_pwcsName, GetStream(&ib.dfnName, DF_READ,
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ib.type, &psstFrom));
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// Destination must be a direct docfile
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olChkTo(EH_Get,
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CDirectStream::Reserve(1, BP_TO_P(CDFBasis *, _pdfb)));
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olChkTo(EH_Reserve,
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pdfTo->CreateStream(&ib.dfnName, DF_WRITE, dlLUID,
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ib.type, &psstTo));
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if ((dwFlags & CDF_ENTRIESONLY) == 0 &&
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!(snbExclude && NameInSNB(&ib.dfnName, snbExclude) ==
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S_OK))
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olChkTo(EH_Create, CopySStreamToSStream(psstFrom, psstTo));
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psstFrom->Release();
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psstTo->Release();
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break;
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default:
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olAssert(!aMsg("Unknown entry type in CDocFile::CopyTo"));
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break;
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}
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}
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olDebugOut((DEB_ITRACE, "Out CDocFile::CopyTo\n"));
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return S_OK;
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EH_Create:
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if (REAL_STGTY(ib.type) == STGTY_STORAGE)
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pdfToChild->Release();
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else if (REAL_STGTY(ib.type) == STGTY_STREAM)
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psstTo->Release();
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olAssert(&ib.dfnName);
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olVerSucc(pdfTo->DestroyEntry(&ib.dfnName, TRUE));
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goto EH_Get;
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EH_Reserve:
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if (REAL_STGTY(ib.type) == STGTY_STORAGE)
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CDocFile::Unreserve(1, BP_TO_P(CDFBasis *, _pdfb));
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else if (REAL_STGTY(ib.type) == STGTY_STREAM)
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CDirectStream::Unreserve(1, BP_TO_P(CDFBasis *, _pdfb));
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EH_Get:
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if (REAL_STGTY(ib.type) == STGTY_STORAGE)
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pdfFromChild->Release();
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else if (REAL_STGTY(ib.type) == STGTY_STREAM)
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psstFrom->Release();
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EH_pwcsName:
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return sc;
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}
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