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// File: TDF_Delta.cxx
// -------------
// Author: DAUTRY Philippe
// <fid@fox.paris1.matra-dtv.fr>
// Copyright: Matra Datavision 1997
// Version: 0.0
// History: Version Date Purpose
// 0.0 Sep 8 1997 Creation
#include <TDF_Delta.ixx>
#include <TDF_LabelMap.hxx>
#include <TDF_ListIteratorOfAttributeDeltaList.hxx>
#include <TDF_ListIteratorOfLabelList.hxx>
#include <TDF_MapIteratorOfLabelMap.hxx>
#ifdef DEB
#include <Standard_ConstructionError.hxx>
#endif
#undef DEB_DELTA
//=======================================================================
//function : TDF_Delta
//purpose :
//=======================================================================
TDF_Delta::TDF_Delta()
: myBeginTime(0),
myEndTime(0)
{}
//=======================================================================
//function : Validity
//purpose :
//=======================================================================
void TDF_Delta::Validity
(const Standard_Integer aBeginTime,
const Standard_Integer anEndTime)
{
myBeginTime = aBeginTime;
myEndTime = anEndTime;
}
//=======================================================================
//function : AddAttributeDelta
//purpose :
//=======================================================================
void TDF_Delta::AddAttributeDelta
(const Handle(TDF_AttributeDelta)& anAttributeDelta)
{ if (!anAttributeDelta.IsNull()) myAttDeltaList.Append(anAttributeDelta); }
//=======================================================================
//function : BeforeOrAfterApply
//purpose :
//=======================================================================
void TDF_Delta::BeforeOrAfterApply(const Standard_Boolean before) const
{
TDF_AttributeDeltaList ADlist;
// for (TDF_ListIteratorOfAttributeDeltaList itr(myAttDeltaList);
TDF_ListIteratorOfAttributeDeltaList itr(myAttDeltaList) ;
for ( ; itr.More(); itr.Next()) ADlist.Append(itr.Value());
Handle(TDF_AttributeDelta) attDelta;
Handle(TDF_Attribute) att;
Standard_Boolean noDeadLock = Standard_True;
Standard_Integer nbAD = ADlist.Extent();
Standard_Boolean next;
while (noDeadLock && (nbAD != 0)) {
itr.Initialize(ADlist);
while (itr.More()) {
next = Standard_True;
attDelta = itr.Value();
att = attDelta->Attribute();
if (before)
next = !att->BeforeUndo(attDelta);
else
next = !att->AfterUndo(attDelta);
if (next)
itr.Next();
else
ADlist.Remove(itr);
}
noDeadLock = (nbAD > ADlist.Extent());
nbAD = ADlist.Extent();
}
if (!noDeadLock) {
#ifdef DEB
if (before) cout<<"Before"; else cout<<"After";
cout<<"Undo(): dead lock between these attributes:"<<endl;
for (itr.Initialize(ADlist); itr.More(); itr.Next()) {
cout<<"AttributeDelta type = "<<itr.Value()->DynamicType()->Name();
cout<<" Attribute type = "<<itr.Value()->Attribute()->DynamicType()->Name()<<endl;;
if (before)
Standard_ConstructionError::Raise("BeforeUndo(): dead lock.");
else
Standard_ConstructionError::Raise("AfterUndo(): dead lock.");
}
#endif
for (itr.Initialize(ADlist); itr.More(); itr.Next()) {
attDelta = itr.Value();
att = attDelta->Attribute();
if (before)
att->BeforeUndo(attDelta,Standard_True);
else
att->AfterUndo(attDelta,Standard_True);
}
}
}
//=======================================================================
//function : Apply
//purpose :
//=======================================================================
void TDF_Delta::Apply()
{
TDF_ListIteratorOfAttributeDeltaList itr;
for (itr.Initialize(myAttDeltaList); itr.More(); itr.Next()) {
const Handle(TDF_AttributeDelta)& attDelta = itr.Value();
attDelta->Apply();
}
}
//=======================================================================
//function : Labels
//purpose :
//=======================================================================
void TDF_Delta::Labels(TDF_LabelList& aLabelList) const
{
TDF_LabelMap labMap;
// If <aLabelList> is not empty...
#ifdef DEB_DELTA
Standard_Boolean inList;
if (aLabelList.Extent() > 0) cout<<"Previously added as modified label(s) ";
#endif
for (TDF_ListIteratorOfLabelList it1(aLabelList);
it1.More(); it1.Next()) {
#ifdef DEB_DELTA
const TDF_Label& lab1 = it1.Value();
inList = labMap.Add(lab1);
if (!inList) {
lab1.EntryDump(cout);cout<<" | ";
}
#endif
}
#ifdef DEB_DELTA
cout<<endl;
#endif
// New labels to add.
#ifdef DEB_DELTA
if (myAttDeltaList.Extent() > 0) cout<<"New added as modified label(s) ";
#endif
for (TDF_ListIteratorOfAttributeDeltaList it2(myAttDeltaList);
it2.More();
it2.Next()) {
#ifdef DEB_DELTA
const TDF_Label& lab1 = it2.Value()->Label();
inList = labMap.Add(lab1);
if (!inList) {
lab1.EntryDump(cout);cout<<" | ";
}
#endif
}
#ifdef DEB_DELTA
cout<<endl;
#endif
// Now put labels into <aLabelList>.
aLabelList.Clear();
for (TDF_MapIteratorOfLabelMap it3(labMap);
it3.More(); it3.Next()) {
aLabelList.Append(it3.Key());
}
}
//=======================================================================
//function : Dump
//purpose :
//=======================================================================
void TDF_Delta::Dump(Standard_OStream& OS) const
{
OS<<"DELTA available from time \t#"<<myBeginTime<<" to time \t#"<<myEndTime<<endl;
Standard_Integer n = 0;
// for (TDF_ListIteratorOfAttributeDeltaList itr(myAttDeltaList);
TDF_ListIteratorOfAttributeDeltaList itr(myAttDeltaList) ;
for ( ; itr.More(); itr.Next()) ++n;
OS<<"Nb Attribute Delta(s): "<<n<<endl;
for (itr.Initialize(myAttDeltaList); itr.More(); itr.Next()) {
const Handle(TDF_AttributeDelta)& attDelta = itr.Value();
OS<<"| "; attDelta->Dump(OS); OS<<endl;
}
}
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