bool ArxEntityHelper::SelectEntities( const AcDbObjectIdArray& objIds )
{
//acedSSSetFirst(NULL, NULL);
if( objIds.isEmpty() ) return false;
ads_name ss;
//创建一个空的选择集
if(RTNORM != acedSSAdd( NULL, NULL, ss )) return false;
bool ret = true;
for(int i=0;i<objIds.length();i++)
{
ads_name ename;
if( Acad::eOk != acdbGetAdsName( ename, objIds[i] ) )
{
ret = false;;
break;
}
if( RTNORM != acedSSAdd( ename, ss, ss ) ) // 添加到选择集
{
ret = false;;
break;
}
}
if(ret)
{
acedSSSetFirst( ss, NULL ); // 高亮选中
}
acedSSFree( ss ); // 释放选择集
return ret;
}
String GetSelectedExtent() {
ads_name selection;
int returnValue = acedSSGet(_T("I"), NULL, NULL, NULL, selection);
if (returnValue == RTCAN) return 0;
if (returnValue != RTNORM) {
return L"";
}
if (acedSSSetFirst(selection, NULL) != RTNORM) {
acedSSFree(selection);
return L"";
}
ads_name element;
acedSSName(selection, 0, element);
acedSSFree(selection);
AcDbObjectId idEntity;
if (acdbGetObjectId(idEntity, element) != Acad::eOk) {
acedSSFree(element);
return L"";
}
AcDbEntity * entity;
if ((acdbGetObjectId(idEntity, element) != Acad::eOk) ||
(acdbOpenObject(entity, idEntity, AcDb::kForRead) != Acad::eOk)) {
acedSSFree(element);
return L"";
}
acedSSFree(element);
if (!entity->isKindOf(AcDbPolyline::desc())) return L"";
AcDbPolyline * poly = static_cast<AcDbPolyline*>(entity);
if (!poly->isClosed()) return 0;
String extent = L"POLYGON((";
AcGePoint2d start;
AcGePoint2d current;
for (int i = 0; i < poly->numVerts(); i++) {
poly->getPointAt(i, current);
if (i > 0) {
extent += L", ";
} else {
start = current;
}
extent += Round(current.x, 0) + L" " + Round(current.y, 0);
}
if (!start.isEqualTo(current)) {
extent += L", " + Round(start.x, 0) + L" " + Round(start.y, 0);
}
extent += L"))";
poly->close();
return extent;
}
int ads_gm_get_data()
{
ads_name selection;
int returnValue = acedSSGet(_T("I"), NULL, NULL, NULL, selection);
if (returnValue == RTCAN || returnValue != RTNORM) return 0;
long num = 0;
returnValue = acedSSLength(selection, &num);
if (returnValue == RTCAN || returnValue != RTNORM) return 0;
if (num != 1) {
acedSSSetFirst(NULL, NULL);
returnValue = acedSSGet(L"_:S", NULL, NULL, NULL, selection);
if (returnValue == RTCAN || returnValue != RTNORM) return 0;
if (acedSSSetFirst(selection, NULL) != RTNORM) {
acedSSFree(selection);
return 0;
}
}
ads_name element;
acedSSName(selection, 0, element);
acedSSFree(selection);
AcDbObjectId idEntity;
if (acdbGetObjectId(idEntity, element) != Acad::eOk) {
acedSSFree(element);
return 0;
}
acedSSFree(element);
CCadEntity * cadEntity = CCadEntityFactory::GetCadEntity(idEntity);
acutPrintf((L"\n" + cadEntity->GetData().ToFormattedString() + L"\n").c_str());
delete cadEntity;
return 1;
}
/*
* 帮助文档中acedSSSetFirst以及acedSSGetFirst
* 要求使用它的命令应该开启ACRX_CMD_USEPICKSET和ACRX_CMD_REDRAW选项
* 但测试结果显示，貌似不使用也可以??????
*/
bool ArxEntityHelper::SelectEntity( const AcDbObjectId& objId )
{
//acedSSSetFirst(NULL, NULL);
if( objId.isNull() ) return false;
ads_name ename;
if( Acad::eOk != acdbGetAdsName( ename, objId ) ) return false;;
ads_name ss;
if( RTNORM != acedSSAdd( ename, NULL, ss ) ) return false; // 创建选择集
acedSSSetFirst( ss, NULL ); // 高亮选中
acedSSFree( ss ); // 释放选择集
return true;
}
