C++ AcDbObject::deepClone方法代码示例

void
ArxDbgAppEditorReactor::insertCloneMergeDicts(AcDbDictionary* srcDict,
                AcDbDictionary* destDict, AcDbIdMapping& idMap)
{
    AcDbObjectId tmpObjId;
    AcDbObject* objToClone;
    AcDbObject* clonedObj;
    AcDbDictionaryIterator* iter;
    iter = srcDict->newIterator();

    for (; !iter->done(); iter->next()) {
        iter->getObject(objToClone, AcDb::kForRead);
        
            // if an entry with this name is found already, don't clone
            // it, add to the idMap to say that this one got translated
            // to one that already exists
        const char *pName = iter->name();
        if (destDict->getAt(pName, tmpObjId) == Acad::eOk) {
            AcDbIdPair idPair(objToClone->objectId(), tmpObjId, true, false, true);
            idMap.assign(idPair);
            objToClone->close();
        }
        else {
                // doesn't exist yet in the destination dict, so clone and
                // place it there.
            clonedObj = NULL;
            objToClone->deepClone(destDict, clonedObj, idMap);

                // INSERT usually uses a method of cloning
                // called CheapClone, where it "moves" objects
                // into the destination database instead of
                // actually cloning them.  When this happens,
                // objToClone and clonedObj are pointers to the
                // same object.  We only want to close pObj
                // here if it really is a different object.
            if (objToClone != clonedObj)
                objToClone->close();

            if (clonedObj) {
                destDict->setAt(pName, clonedObj, tmpObjId);
                clonedObj->close();
            }
        }
    }
    delete iter;
}

Acad::ErrorStatus
ArxDbgDbEntity::deepClone(AcDbObject* pOwner,
              AcDbObject*& pClonedObject,
              AcDbIdMapping& idMap,
              Adesk::Boolean isPrimary) const
{
        // You should always pass back pClonedObject == NULL
        // if, for any reason, you do not actually clone it
        // during this call.  The caller should pass it in
        // as NULL, but to be safe, we set it here as well.
    pClonedObject = NULL;

	if (ArxDbgOptions::m_instance.m_showDeepCloneDetails) {
		CString titleStr, tmpStr;
		titleStr.Format(_T("Beginning -- deepClone: %s"),
				ArxDbgUtils::objToClassAndHandleStr(const_cast<ArxDbgDbEntity*>(this), tmpStr));
		ArxDbgUiTdmIdMap dbox(&idMap, acedGetAcadDwgView(), titleStr);
		dbox.DoModal();
	}

    AcDb::DeepCloneType type = idMap.deepCloneContext();

        // if we know everything will be cloned for us, just let
		// the base class do everything for us.
    if ((type == AcDb::kDcInsert) ||
		(type == AcDb::kDcInsertCopy) ||
		(type == AcDb::kDcExplode))
        return AcDbEntity::deepClone(pOwner, pClonedObject, idMap, isPrimary);

        // following case happens when doing a AcDbDatabase::deepCloneObjects()
        // and the owner happens to be the same... then its really like a
        // kDcCopy, otherwise deepCloneObjects() is like a kDcBlock
    if (type == AcDb::kDcObjects) {
		if (ownerId() == pOwner->objectId())
			type = AcDb::kDcCopy;
		else
			type = AcDb::kDcBlock;
	}

		// now ask derived classes what references they want cloned for them
	AcDbObjectIdArray refEntIds;
	AcDbIntArray refTypes;
	getCloneReferences(type, refEntIds, refTypes);
	ASSERT(refEntIds.length() == refTypes.length());

		// if derived class doesn't have any references to take care of, then
		// we will just let the AcDbEntity::deepClone() take care of things.
	if (refEntIds.isEmpty())
		return AcDbEntity::deepClone(pOwner, pClonedObject, idMap, isPrimary);

        // If this object is in the idMap and is already
        // cloned, then return.
	bool tmpIsPrimary = isPrimary ? true : false;	// get around compiler performance warning
    AcDbIdPair idPair(objectId(), AcDbObjectId::kNull, false, tmpIsPrimary);
    if (idMap.compute(idPair) && (idPair.value() != NULL))
        return Acad::eOk;

    // STEP 1:
    // Create the clone
    //
    AcDbObject *pClone = (AcDbObject*)isA()->create();
    if (pClone != NULL)
        pClonedObject = pClone;    // set the return value
    else
        return Acad::eOutOfMemory;

    // STEP 2:
    // Append the clone to its new owner.  In this example,
    // we know that we are derived from AcDbEntity, so we
    // can expect our owner to be an AcDbBlockTableRecord,
    // unless we have set up an ownership relationship with
    // another of our objects.  In that case, we need to
    // establish how we connect to that owner in our own
    // way.  This sample shows a generic method using
    // setOwnerId().
    //
    AcDbBlockTableRecord *pBTR = AcDbBlockTableRecord::cast(pOwner);
    if (pBTR != NULL) {
        AcDbEntity* ent = AcDbEntity::cast(pClone);
        pBTR->appendAcDbEntity(ent);
    }
    else {
        if (isPrimary)
            return Acad::eInvalidOwnerObject;

        // Some form of this code is only necessary if
        // anyone has set up an ownership for our object
        // other than with an AcDbBlockTableRecord.
        //
        pOwner->database()->addAcDbObject(pClone);
        pClone->setOwnerId(pOwner->objectId());
    }

    // STEP 3:
    // Now we copy our contents to the clone.  This is done
    // using an AcDbDeepCloneFiler.  This filer keeps a
    // list of all AcDbHardOwnershipIds and
    // AcDbSoftOwnershipIds we, and any classes we derive
    // from,  have.  This list is then used to know what
    // additional, "owned" objects need to be cloned below.
//.........这里部分代码省略.........