See the sample code example that shows how any object that you add using DisableCopy command is prevented from being copied by the COPY command. You can re-enable object for COPY-ing using EnableCopy command. Note that the object ids are stored within the editor reactor, so they are persistent only during the given session.
Step 1 : In the header file of your editor reactor :
private:
AcDbObjectIdArray m_ids;
public:
// overrides
virtual void beginDeepCloneXlation(AcDbIdMapping& x0,
Acad::ErrorStatus* x1);
virtual void beginDeepClone(AcDbDatabase* pTo,
AcDbIdMapping& x0);
// other custom methods
Adesk::Boolean addObject(const AcDbObjectId& id);
Adesk::Boolean removeObject(const AcDbObjectId& id);
Step 2 : In the implementation file of your editor reactor :
//
// Override method implementation
//
void ADSEditorRctr::beginDeepClone(AcDbDatabase* pTo,
AcDbIdMapping& x0)
{
// Only for Copy Context
if(AcDb::kDcCopy != x0.deepCloneContext())
return;
// Mock up a fake clone: place our ids in the map
for(int i=0; i<m_ids.length(); i++)
{
x0.assign(
AcDbIdPair(
m_ids[i],
m_ids[i],
Adesk::kTrue,
Adesk::kTrue
)
);
}
}
//
// Override method implementation
//
void ADSEditorRctr::beginDeepCloneXlation(AcDbIdMapping& x0,
Acad::ErrorStatus* x1)
{
// Only for Copy Context
if(AcDb::kDcCopy != x0.deepCloneContext())
return;
// Remove them here
for(int i=0; i<m_ids.length(); i++)
{
x0.del(m_ids[i]);
}
}
//
// Custom method implementation
//
Adesk::Boolean ADSEditorRctr::addObject(const AcDbObjectId& id)
{
int at;
if(!m_ids.find(id,at))
{
m_ids.append(id);
return Adesk::kTrue;
}
return Adesk::kFalse;
}
//
// Custom method implementation
//
Adesk::Boolean ADSEditorRctr::removeObject(const AcDbObjectId& id)
{
int at;
if(m_ids.find(id,at))
{
m_ids.removeAt(at);
return Adesk::kTrue;
}
return Adesk::kFalse;
}
Step 3 : Add commands to enable/disable the copy for certain entities :
// DISABLECOPY command
static void DISABLECOPY(void)
{
ads_name ss;
if(acedSSGet(NULL,NULL,NULL,NULL,ss)==RTNORM)
{
ads_name ent;
AcDbObjectId id;
long length;
if(acedSSLength(ss, &length)==RTNORM)
{
for(int i=0; i<length; i++)
{
if(ads_ssname(ss, i, ent)==RTNORM)
{
if(acdbGetObjectId(id,ent) == Acad::eOk)
DocVars.docData().gEditorRctr.addObject(id);
}
}
}
}
acedSSFree(ss);
}
// ENABLECOPY command
static void ENABLECOPY(void)
{
ads_name ss;
if(acedSSGet(NULL,NULL,NULL,NULL,ss)==RTNORM)
{
ads_name ent;
AcDbObjectId id;
long length;
if(acedSSLength(ss, &length)==RTNORM)
{
for(int i=0; i<length; i++)
{
if(ads_ssname(ss, i, ent)==RTNORM)
{
if(acdbGetObjectId(id,ent) == Acad::eOk)
DocVars.docData().gEditorRctr.removeObject(id);
}
}
}
}
acedSSFree(ss);
}
Step 4 : Add an instance of the Editor reactor class to the CDocData class:
public:
// Editor reactor
ADSEditorRctr gEditorRctr;
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