C++ AcDbDictionary::wblockClone方法代码示例

// AsdkNODEdReactor is derived from AcEditorReactor
//
void
AsdkNODEdReactor::beginDeepCloneXlation(
    AcDbIdMapping& idMap,
    Acad::ErrorStatus* pRetStat)
{
    Acad::ErrorStatus es;
    AcDbObjectId dictId;

    if (   idMap.deepCloneContext() != AcDb::kDcWblock
        && idMap.deepCloneContext() != AcDb::kDcInsert)
        return;

    // Get the "from" and "to" databases. 
    //
    AcDbDatabase *pFrom, *pTo;
    idMap.origDb(pFrom);
    idMap.destDb(pTo);

    // See if the "from" database has our dictionary, and
    // open it.  If it doesn't have one, we are done.
    //
    AcDbDictionary *pSrcNamedObjDict;
    pFrom->getNamedObjectsDictionary(pSrcNamedObjDict,
                                     AcDb::kForRead);

    es = pSrcNamedObjDict->getAt(kpDictionary, dictId);
    pSrcNamedObjDict->close();

    if (es == Acad::eKeyNotFound) 
        return;

    AcDbDictionary *pSrcDict;
    acdbOpenObject(pSrcDict, dictId, AcDb::kForRead);

    AcDbObject *pClone;
    switch (idMap.deepCloneContext()) {

    case AcDb::kDcWblock:

        // WBLOCK clones all, or part of a drawing into a
        // newly created drawing.  This means that the
        // NamedObject Dictionary is always cloned, and
        // its AcDbObjectIds are in flux.  Therefore, you
        // cannot use getAt() or setAt() on the dictionary
        // in the new database.  This is because the
        // cloned dictionary references all refer to the 
        // original objects.  During Deep Clone translation,
        // all cloned entries will be translated to the
        // new objects, and entries not cloned will be
        // "removed" by getting "translated" to NULL.
        //
        // The cloning of entries in our own dictionary are
        // not handled here.  If all are to be cloned, then
        // call setTreatElementsAsHard(Adesk::kTrue) on the
        // dictionary.  Otherwise, only those entries which
        // are refered to by hard references in other
        // wblocked objects, will have been cloned via
        // those references.

        // In this example, we will always write out all of
        // the records.  Since TreatElementsAsHard is not
        // currently persistent, we reset it here each time.
        //
        pSrcDict->upgradeOpen();
        pSrcDict->setTreatElementsAsHard(Adesk::kTrue);

        pClone = NULL;
        pSrcDict->wblockClone(pTo, pClone, idMap,
                              Adesk::kFalse);
        if (pClone != NULL) 
            pClone->close();
        break;

    case AcDb::kDcInsert:

        // In INSERT, an entire drawing is cloned, and
        // "merged" into a pre-existing drawing.  This
        // means that the destination drawing may already
        // have our dictionary - in which case we have to
        // merge our entries into the destination
        // dictionary.   So, first we must find out if
        // the destination NamedObjects dictionary has
        // our dictionary.
        //
        AcDbDictionary *pDestNamedDict;
        pTo->getNamedObjectsDictionary(pDestNamedDict,
                                       AcDb::kForWrite);

        // Since INSERT does not clone the destination
        // NamedObjects dictionary, we can use getAt()
        // on it.
        //
        es = pDestNamedDict->getAt(kpDictionary, dictId);

        // If our dictionary does not yet exist in the
        // NamedObjects dictionary, which is not itself
        // cloned, we have to both clone and add our
        // dictionary to it.  Since dictionary entries are
//.........这里部分代码省略.........