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hulei_accp 发表于 2005-9-9 11:19:00

exam10b.cpp
#include "string.h" #include "stdlib.h" #include "aced.h" #include "dbents.h" #include "dbsymtb.h" #include "dbapserv.h" #include "adslib.h"
void assocLines(); void addToModelSpace(AcDbObjectId&,AcDbEntity *); void initApp(void); void unloadApp(void); extern "C" AcRx::AppRetCode acrxEntryPoint(AcRx::AppMsgCode,void *);
class MyObjectNotify:public AcDbObject { public:  ACRX_DECLARE_MEMBERS(MyObjectNotify);  MyObjectNotify(){};  void eLinkage(AcDbObjectId i,double f=1.0)  {   mId=i;   mFactor=f;  };  void modified(const AcDbObject *);  Acad::ErrorStatus dwgInFields(AcDbDwgFiler *);  Acad::ErrorStatus dwgOutFields(AcDbDwgFiler *)const ;  Acad::ErrorStatus dxfInFields(AcDbDxfFiler *);  Acad::ErrorStatus dxfOutFields(AcDbDxfFiler *) const; private:  AcDbObjectId mId;  double mFactor; };
ACRX_DXF_DEFINE_MEMBERS(MyObjectNotify,AcDbObject,       AcDb::kDHL_CURRENT,AcDb::kMReleaseCurrent,       0,MYOBJECTMODIFY,exam10b);
void MyObjectNotify::modified(const AcDbObject *pObj) {  AcDbLine *pLine=AcDbLine::cast(pObj);  if(!pLine)  {   const char * str=pObj->isA()->name();   acutPrintf("This is a %s.\n",str);   acutPrintf("i only work with lines,sorry.\n");   return;  }  acutPrintf("\nReactor attached to %lx calling %lx.\n",   pLine->objectId(),mId);  AcDbLine *pLine2;  if(acdbOpenObject((AcDbObject *&)pLine2,mId,   AcDb::kForWrite)==Acad::eOk)  {   AcGePoint3d p=pLine->startPoint();   AcGePoint3d q=pLine->endPoint();   AcGeVector3d v=q-p;   double len=v.length();
  p=pLine2->startPoint();   q=pLine2->endPoint();   v=q-p;   v=len*mFactor *v.normal();   pLine2->setEndPoint(p+v);   pLine2->close();  } }
Acad::ErrorStatus MyObjectNotify::dwgInFields(AcDbDwgFiler * filer) {  assertWriteEnabled();  AcDbObject::dwgInFields(filer);  filer->readItem(&mFactor);  filer->readItem((AcDbSoftPointerId *) &mId);  return filer->filerStatus(); }
 Acad::ErrorStatus MyObjectNotify::dwgOutFields(AcDbDwgFiler * filer) const {  assertReadEnabled();  AcDbObject::dwgOutFields(filer);  filer->writeItem(mFactor);  filer->writeItem((AcDbSoftPointerId *) &mId);  return filer->filerStatus(); }
 Acad::ErrorStatus MyObjectNotify::dxfInFields(AcDbDxfFiler * filer) {  assertReadEnabled();  Acad::ErrorStatus es;  if((es=AcDbObject::dxfInFields(filer))!=Acad::eOk)  {   return es;  }
 if(!filer->atSubclassData("MyObjectNotify"))  {   return Acad::eBadDxfSequence;  }
 struct resbuf rbIn;  while(es==Acad::eOk)  {   if((es=filer->readItem(&rbIn))==Acad::eOk)   {    if(rbIn.restype==AcDb::kDxfReal)    {     mFactor=rbIn.resval.rreal;    }    else if(rbIn.restype==AcDb::kDxfSoftPointerId)    {     acdbGetObjectId(mId,rbIn.resval.rlname);    }    else    {     return (filer->pushBackItem());    }   }  }  return filer->filerStatus(); }
Acad::ErrorStatus MyObjectNotify::dxfOutFields(AcDbDxfFiler * filer) const {  assertReadEnabled();  AcDbObject::dxfOutFields(filer);  filer->writeItem(AcDb::kDxfSubclass,   "MyObjectNotify");  filer->writeItem(AcDb::kDxfReal,mFactor);  filer->writeItem(AcDb::kDxfSoftPointerId,mId);  return filer->filerStatus(); }
void assocLines() {  AcDbDatabase *pDb=acdbHostApplicationServices()->workingDatabase();  AcDbObjectId aId,bId;  AcDbLine *pLineA=new AcDbLine;  pLineA->setDatabaseDefaults(pDb);  pLineA->setStartPoint(AcGePoint3d(1,1,0));  pLineA->setEndPoint(AcGePoint3d(2,1,0));  addToModelSpace(aId,pLineA);  ads_printf("Line A is %lx from 1,1 to 2,1j.\n",   pLineA->objectId());  AcDbLine *pLineB=new AcDbLine;  pLineB->setDatabaseDefaults(pDb);  pLineB->setStartPoint(AcGePoint3d(1,2,0));  pLineB->setEndPoint(AcGePoint3d(2,2,0));  addToModelSpace(bId,pLineB);  ads_printf("Line B is %lx from 1,2 to 2,2.\n",   pLineB->objectId());
 AcDbDictionary *pNamedObj;  AcDbDictionary *pNameList;  pDb->getNamedObjectsDictionary(pNamedObj,   AcDb::kForWrite);  if(pNamedObj->getAt("ASDK_DICT",   (AcDbObject * &) pNameList,AcDb::kForWrite)   ==Acad::eKeyNotFound)  {   pNameList=new AcDbDictionary;   AcDbObjectId DictId;   pNamedObj->setAt("ASDK_DICT",pNameList,DictId);  }  pNamedObj->close();  MyObjectNotify *pObj=new MyObjectNotify();  pObj->eLinkage(bId);  AcDbObjectId objId;  if((pNameList->getAt("object_to_notify_A",objId))   ==Acad::eKeyNotFound)  {   pNameList->setAt("object_to_notify_A",pObj,objId);   pObj->close();  }  else  {   delete pObj;   ads_printf("object_to_notify_A already existes\n");  }  pLineA->addPersistentReactor(objId);  pLineA->close();  pObj=new MyObjectNotify();  pObj->eLinkage(aId);  if((pNameList->getAt("object_to_notify_B",objId))   ==Acad::eKeyNotFound)  {   pNameList->setAt("object_to_notify_B",pObj,objId);   pObj->close();  }  else  {   delete pObj;   ads_printf("object_to_notify_b already existes\n");  }  pNameList->close();
 pLineB->addPersistentReactor(objId);  pLineB->close(); }
void addToModelSpace(AcDbObjectId &objId,AcDbEntity * pEntity) {  AcDbBlockTable *pBlockTable;  AcDbBlockTableRecord *pSpaceRecord;  acdbHostApplicationServices()->workingDatabase()   ->getSymbolTable(pBlockTable,AcDb::kForRead);  pBlockTable->getAt(ACDB_MODEL_SPACE,pSpaceRecord,   AcDb::kForWrite);  pBlockTable->close();  pSpaceRecord->appendAcDbEntity(objId,pEntity);  pSpaceRecord->close();  return; }
 void initApp() {  acedRegCmds->addCommand("EXAM10b",   "ALINES",   "ALINES",   ACRX_CMD_MODAL,   assocLines);  MyObjectNotify::rxInit();  acrxBuildClassHierarchy(); }
void unloadApp() {  acedRegCmds->removeGroup("EXAM10B");  deleteAcRxClass(MyObjectNotify::desc()); }
AcRx::AppRetCode acrxEntryPoint(AcRx::AppMsgCode msg, void *appId) {  switch(msg)  {  case AcRx::kInitAppMsg:   acrxDynamicLinker->unlockApplication(appId);   acrxDynamicLinker->registerAppMDIAware(appId);   initApp();   break;  case AcRx::kUnloadAppMsg:   unloadApp();  }  return AcRx::kRetOK; }

hulei_accp 发表于 2005-9-9 11:20:00

exam10b.def
LIBRARY  exam10b DESCRIPTION  "EXAM10B APPLICATION" EXPORTS acrxEntryPoint  PRIVATE acrxGetApiVersion PRIVATE

hulei_accp 发表于 2005-9-9 11:23:00

用vc++6.0开发，autocad2002中使用正常。
command :ALINES
会增加两条直线，对任意一条直线操作，都会影响到第二个直线。

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