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// File: MDF_DriverTable.gxx
// -------------------
// Author: DAUTRY Philippe
// <fid@fox.paris1.matra-dtv.fr>
// Copyright: Matra Datavision 1997
// Version: 0.0
// History: Version Date Purpose
// 0.0 May 6 1997 Creation
#include TheHDriver_hxx
#include MDF_DataMapIteratorOfTypeDriverListMap_hxx
#include MDF_DriverList_hxx
//=======================================================================
//function : MDF_DriverTable
//purpose :
//=======================================================================
MDF_DriverTable::MDF_DriverTable() :
myVersion(-1)
{}
//=======================================================================
//function : SetDriver
//purpose : Sets a driver in its List,
// in decreasing version number order
//=======================================================================
void MDF_DriverTable::SetDriver
(const Handle(TheHDriver)& anHDriver)
{
const Handle(Standard_Type)& type = anHDriver->SourceType();
if (myMapOfLst.IsBound(type)) {
MDF_DriverList& lst = myMapOfLst.ChangeFind(type);
if (lst.IsEmpty()) {
lst.Append(anHDriver);
}
else {
Standard_Integer driverVersion = anHDriver->VersionNumber();
Standard_Integer currentVersion;
for (MDF_ListIteratorOfDriverList itr(lst); itr.More(); itr.Next()) {
const Handle(TheHDriver)& driver = itr.Value();
currentVersion = driver->VersionNumber();
if (driverVersion == currentVersion) {
lst.Remove(itr);
if (lst.IsEmpty()) lst.Append(anHDriver);
else lst.InsertBefore(anHDriver,itr);
break;
}
else if (driverVersion > currentVersion) {
lst.InsertAfter(anHDriver,itr);
break;
}
}
}
}
else {
MDF_DriverList lst;
lst.Append(anHDriver);
myMapOfLst.Bind(type,lst);
}
myMap.Clear();
}
//=======================================================================
//function : SetDrivers
//purpose :
//=======================================================================
void MDF_DriverTable::SetDrivers
(const Handle(TheDriverHSeq)& aDriverHSeq)
{
const Standard_Integer upper = aDriverHSeq->Length();
for (Standard_Integer i = 1; i <= upper; ++i)
SetDriver(aDriverHSeq->Value(i));
}
//=======================================================================
//function : GetDrivers
//purpose :
//=======================================================================
const TheTypeDriverMap& MDF_DriverTable::GetDrivers
(const Standard_Integer aVersion)
{
if ((myMap.IsEmpty()) || (myVersion != aVersion)) {
// Rebuild the map.
Handle(TheHDriver) driver;
MDF_DataMapIteratorOfTypeDriverListMap itr(myMapOfLst);
for ( ; itr.More(); itr.Next()) {
const Handle(Standard_Type)& type = itr.Key();
if (MDF_DriverTable::GetDriver(type, driver, aVersion))
myMap.Bind(type, driver);
}
myVersion = aVersion;
}
return myMap;
}
//=======================================================================
//function : GetDriver
//purpose :
//=======================================================================
Standard_Boolean MDF_DriverTable::GetDriver
(const Handle(Standard_Type)& aType,
Handle(TheHDriver)& anHDriver,
const Standard_Integer aVersion) const
{
Standard_Boolean found = Standard_False;
if (myMapOfLst.IsBound(aType)) {
const MDF_DriverList& lst = myMapOfLst.Find(aType);
if ( (aVersion == 0) && !lst.IsEmpty() ) {
found = Standard_True;
anHDriver = lst.First();
}
else {
for (MDF_ListIteratorOfDriverList itr(lst); itr.More(); itr.Next()) {
const Handle(TheHDriver)& driver = itr.Value();
if (driver->VersionNumber() >= aVersion) {
found = Standard_True;
anHDriver = driver;
break;
}
}
}
}
return found;
}
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