ObjectARX, AutoCAD. Среда программирования библиотеки C++
Формирование Иерархии Монопольных использований - часть 3
// Since objects of this class will be in the Named
// Objects Dictionary tree and may be hard referenced
// by some other object, to support wblock we need to
// file out our owner as a hard pointer Id so that it
// will be added to the list of objects to be wblocked
//
if (filer->filerType() == AcDb::kWblockCloneFiler)
filer->writeHardPointerId((AcDbHardPointerId)ownerId());
filer->writeItem(mIntval);
filer->writeItem(mObjId);
return filer->filerStatus();
}
// Files data in from a DXF file.
//
Acad::ErrorStatus
AsdkOwnerDemo::dxfInFields(AcDbDxfFiler* filer)
{
assertWriteEnabled();
Acad::ErrorStatus es;
if ((es = AcDbObject::dxfInFields(filer)) != Acad::eOk)
{
return es;
}
// Check if we’re at the right subclass data marker.
//
if (!filer->atSubclassData("AsdkOwnerDemo")) {
return Acad::eBadDxfSequence;
}
struct resbuf inbuf;
while (es == Acad::eOk) {
if ((es = filer->readItem(&inbuf)) == Acad::eOk) {
if (inbuf.restype == AcDb::kDxfInt16) {
mIntval = inbuf.resval.rint;
} else if (inbuf.restype == AcDb::kDxfHardOwnershipId)
{
acdbGetObjectId(mObjId,
inbuf.resval.rlname);
}
}
}
return filer->filerStatus();
}
// Files data out to a DXF file.
//
Acad::ErrorStatus
AsdkOwnerDemo::dxfOutFields(AcDbDxfFiler* filer) const
{
assertReadEnabled();
AcDbObject::dxfOutFields(filer);
filer->writeItem(AcDb::kDxfSubclass, "AsdkOwnerDemo");
filer->writeItem(AcDb::kDxfInt16, mIntval);
// Null object IDs are invalid: don’t write them out.
//
if (mObjId.asOldId() != 0L) {
filer->writeItem(AcDb::kDxfHardOwnershipId, mObjId);
}
return filer->filerStatus();
}
// Creates an AsdkOwnerDemo object (pObjC) and adds data to
// it. Then, AsdkOwnerDemo pObjC is created and set to be
// the owner of pObjC. Next, AsdkOwnerDemo pObjA is created
// and set to own pObjB. Finally, pObjA is added to a
// dictionary in the named object dictionary. Technically,
// we could just add pObjA to the named object dictionary
