[每日一码] 克隆一个块定义（AcDbBlockTableRecord）

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1. AcDbObjectId cloneBlockRecord(AcDbObjectId from, char *to)
2. {
3.     AcDbBlockTable *pBlockTable;
4.     AcDbBlockTableRecord *pBlockTableRecord;
5.     AcGePoint3d tempOrigin;
6.     AcDbObjectIdArray arrayId;
7.     AcDbBlockTableRecordIterator *pIter;
8.     AcDbObjectId objId, tableId, blockTargetId;
9.     AcDbDatabase *pDB;
10.     AcDbIdMapping idMap;
12.     char buffer[21];
15.     pDB = acdbHostApplicationServices()->workingDatabase();
17.     acdbOpenAcDbObject ((AcDbObject *&)pBlockTableRecord, from,
18. AcDb::kForRead);
19.     tempOrigin = pBlockTableRecord->origin();   
20.     pBlockTableRecord->newIterator(pIter);
21.     while (!pIter->done())
22.     {
23.         pIter->getEntityId(objId);
24.         arrayId.append(objId);
25.         pIter->step();
26.     }
27.     delete pIter ;
29.     tableId = pBlockTableRecord->ownerId();
30.     pBlockTableRecord->close();
33.     pDB->getBlockTable(pBlockTable, AcDb::kForRead);
35.     strcpy(buffer, to);
36.     if(pBlockTable->has(buffer))
37.     {
38.         for (int i = 0; i < 255; i++)
39.         {
40.             sprintf(buffer, "%s%d", to, i);
41.             if(!pBlockTable->has(buffer))
42.             {
43.                 break;
44.             }
45.         }
46.     }
48.     pBlockTable->upgradeOpen ();
49.     pBlockTableRecord = new AcDbBlockTableRecord;
50.     pBlockTableRecord->setName(buffer);
51.     pBlockTableRecord->setOrigin(tempOrigin);
53.     pBlockTable->add(blockTargetId, pBlockTableRecord);
54.     pBlockTableRecord->close();
55.     pBlockTable->close();
57.     pDB->deepCloneObjects(arrayId, blockTargetId, idMap);
59.     return blockTargetId;
60. }

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